Publishing a report, developing a study, need an expert, data analysis? Ask SAM to help you find your thought partner…

Search



Filter by Scholars/Advocates



Search across profile fields and questions



Find people/organizations that match your interests


Members directory

  • Profile picture of William Vesneski
    William Vesneski
    Scholar

    William Vesneski is a J.D., PhD and teaches in the area of Social Work as well as consults on organizational development.  He special began his career as a public defender in juvenile court, representing parents in dependency proceedings and youth in criminal prosecutions. After receiving his MSW from the University of Washington in 1998, he spent a decade as a staff member and consultant to the National Court Appointed Special Advocate Association where he helped steer the association’s national evaluation activities. Subsequently, he served as a senior manager with the Paul G. Allen Family Foundation where he directed the foundation’s social welfare giving in the Pacific Northwest.

    Scholar
  • Profile picture of wio228
    http://www.zjzs-spinningbike.com/spinning-bike/magnetic-spinning-bike/
    Scholar

    8 Benefits of Spin Class That’ll Convince You to Finally Try One One of the many reasons we love cycling is that it allows us to get outside and explore. But with winter at our doorstep, sometimes the weather is just plain awful or there’s just not enough time in the day. The next best option? A Spin class, of course. Most studios offer a variety of class options—some as short as 20 minutes or as long as 90 minutes—so you’re always able to fit a workout into your schedule. Nowadays, there are even at-home magnetic spinning bike available that stream classes directly into your living room from companies like Peloton, NordicTrack, and Technogym. Peloton’s beginner-friendly classes, for example, teach participants the correct form and technique that will translate to every other level. Plus, the work you do in a class—whether that’s at home or in a gym—complements your on-the-road training perfectly, according to Peloton instructor Jess King. “It’s an opportunity for you to play around with your training—there’s something for you to hear, learn, and experience that you can take with you back on the road. So why not dip into both worlds?” she says. Spinning is one of those things that seems a bit intimidating if you’ve never done it before. But as long as you have access to a gym or a bike, you can take classes that range from beginner to expert, King says, each of which helps build the main muscle groups used for cycling and your cardiovascular system. “We have this unique opportunity to create something for everyone,” King says. But most studios and instructors offer a variety of options that will suit your needs or experience level. And if you’ve already got the stamina to climb hills and ride long outside, you’re that much more ready to conquer a Spin class. Both studios and at-home options offer longer, more advanced classes as well. This content is imported from {embed-name}. You may be able to find the same content in another format, or you may be able to find more information, at their web site. It goes without saying that taking a Spin class is not the same as riding outside. While you can still experience similar terrain (hills and flat ground), King says in-studio and virtual Spin classes can feel more like a party than a workout. “There’s music from all different decades—from classic rock to EDM—and we use interval training, tabata training, and heart rate training, so it’s still a great workout,” she says about Peloton, though competitors offer a similar experience. A lot of times when you’re out on the road, it’s just you and the voice that’s in your head. That can be a good thing when you want to escape to nature and clear your mind, but it can be a bad thing when the voice is telling you to turn home. Being in a class setting changes things up—especially when you have the motivation of an instructor cheering you on. (Because let’s be real, there are times when you just really don’t want to do that interval workout on your own.) “Spin gives you a new perspective on how to ride, breathe, and think about your body,” King says. When you take an indoor cycling class, everyone from the instructor to the other participants are there to encourage and support you. “Everyone is rooting for you—you’re not alone in this experience,” King says. “We’re using the bike as the medium for that connection and energy.” And Charlee Atkins, C.S.C.S., former master instructor at SoulCycle and founder of Le Sweat, agrees. “[Everyone] is very supportive—they hold each other accountable and celebrate each other’s wins and losses,” she says. “They oftentimes can become an ‘extended family’ of sorts.” It can be really tough to be out on your indoor cycle spinning bike alone, struggling to finish a particularly challenging ride. Sometimes your first instinct is to give up. But when there are other people around you, it makes you want to keep going and prove you can finish what you started. That’s exactly what taking a Spin class does. And that mindset can and will benefit you on the road, too. If you’ve already found a great community of riders outdoors, indoor classes offer the same camaraderie and accountability, just in a different setting. 4. It’s a great total-body workout. Not only does a Spin class benefit your muscles—everything from your legs to your core—but it’s also a great low-impact cardiovascular workout, which improves your blood flow, increases your stamina, boosts your mood, and prevents against chronic issues such as high blood pressure, heart disease, stroke, and diabetes, according to Mayo Clinic. And because of this intense cardio workout, you’ll burn a ton of calories, too. While King says the average is about 400 to 600 calories per class, she’s seen some riders burn more if they’re going particularly hard and long. Some indoor cycling classes even incorporate the use of hand weights to “promote upper-body work, since cycling is a predominantly lower-body workout,” Atkins adds. So in one 45-minute session, you can challenge your upper body, lower body, and core. 5. It’s convenient. Riding outside can take a couple of hours to complete, and most people don’t have that kind of time during the week. So taking an indoor cycling class either at home, at a gym, or in a studio is a great option for when your schedule is packed, and you only have an hour or less to work out. But don’t worry—exercising for a shorter amount of time doesn’t mean you aren’t reaping the same benefits as a longer workout. Many classes feature high-intensity intervals which help you build increased cardiovascular and muscular fitness in less time than a longer but steady-state ride out on the road. 6. It’s low impact. Indoor cycling won’t beat up your joints like other forms of cardio such as running. “It’s great for people who are coming back from an injury,” says Atkins, because your hips, knees, and ankles won’t take all the impact. This makes it a great choice for those who aren’t yet functioning at 100 percent after getting hurt, older adults looking for a way to stay active without putting extra pressure on their joints, or those who suffer from arthritis. 7. You can make it your own. Out on the roads, you can’t lower the grade of a mountain if you’re not up for climbing it that day. But the beauty of a Spin class is that you can customize it to your own needs. The Spin instructor is there to guide you, but you can always modify the workout. For example, you don’t have to stay on the bike during the upper-body workout portion of the class if you feel safer on solid ground. You can also go slower if you need to—you don’t have to worry about getting dropped. And if the class motivates you to push yourself even harder, maybe try racing your friend next to you. Everyone in class is there to work out to the best of their ability while enjoying the motivational vibes of the group. So whatever you’re feeling, go ahead and do your thing. 8. It gives your bike a break. Switching it up with some Spin classes will also give your commercial spinning bike a break from the elements, not just your body. Rain, dirt, and snow will take their toll on your components over time. Replacing just some of your workouts with Spin classes will give you the opportunity to buy and install new parts, or time to take your bike into the shop for a tuneup. Spinning might look about the same as outdoor cycling or riding a stationary bike, but in many ways, it’s a far more intense workout—and one of the easiest to overdo. First, there aren’t many (if any) breaks in spin class. “When you’re biking outside, you have to be aware of road dangers like water and cars, so you have to slow down at times,” says Dr. Maureen Brogan, an assistant professor of medicine at New York Medical College who has conducted research into spinning. Especially if you’re a novice road rider, it’s going to take some time before you’re comfortable enough on two wheels to really push yourself hard for long distances. That’s not the case on a spinning bike, where newbies can hop on and ride hard from the start. Popular spinning studios like Flywheel and SoulCycle have their riders clip their feet into the stationary bikes. As long as the wheels turn, legs keep pumping. Combine this always-working aspect with the thumping music, enthusiastic instructors and energetic group atmosphere of most spinning studios, and it’s easy to get intense exercise and burn calories by the bucketful. “The muscles you use on spinning bikes, the gluteus maximus and the quadriceps, are some of the largest in your body, so you’re using a lot of energy,” Brogan says—600 calories an hour, and sometimes more. This puts spinning near the top of the list when it comes to high-intensity workouts. A study from Sweden found that one hour of spinning was enough to trigger the release of blood chemicals associated with heart stress or changes. While that may sound like a bad thing, these blood chemicals—or biomarkers—signal the heart is getting a good workout. “These kinds of findings have also been seen with prolonged exertion such as marathons,” says study author Dr. Smita Dutta Roy of Sahlgrenska University Hospital in Sweden. While more research is needed to tease out the risks or benefits associated with exercise of this intensity, she says that some of the biomarker shifts her team observed could lead to blood vessel repair and renewal. It can also help improve body composition, decrease fat mass and lower blood pressure and cholesterol, says Jinger Gottschall, an associate professor of kinesiology at Penn State University. Some of her research has shown that high-intensity spinning can increase fitness levels even in trained athletes. “In every study we’ve done, we’ve seen increases in heart and lung capacity,” she says. She calls spinning “the optimal cardio workout,” and says you can get all the intensity of a treadmill or stair-climber without the impact. The low-impact nature of spinning makes it great exercise for older adults or people recovering from orthopedic injuries, she adds. “Because you can adjust the resistance and moderate the pace and intensity of your ride, it opens the door for many people to participate,” she says. But it’s also easy for people who are new to spinning to overexert themselves. “If you’re not used to vigorous exercise, or to exercising the large lower-body muscles involved in spinning, you can overdo it,” Brogan says. She’s a kidney expert by training, and some of her research has linked spinning to rhabdomyolysis, a condition in which muscles break down to the point that they release a protein that can poison the kidneys. “People have swollen legs or trouble walking, and sometimes they take aspirin or NSAIDs for the muscle pain, which is the last thing they should do because those can also damage the kidneys,” she says. Problems like this can set in a day or two after spin class, she says. While overexertion is possible with any form of exercise, she says the risks during spinning may be higher—especially when you consider that some spinners lose up to a liter of water during an hour-long session. Even for trained athletes, there’s some evidence that spinning too often may lead to trouble. A study in the Journal of Strength and Conditioning Research concluded that spinning may push some people past the threshold at which the exercise is beneficial. “If indoor cycling were used as an everyday training activity, it is possible that the overall intensity would be too high and possibly contribute to developing nonfunctional overreaching,” the authors of that study write. (“Nonfunctional overreaching” is sports science lingo for a workout that’s so strenuous it leads to fatigue and performance declines, rather than fitness improvements.) Overall, spinning is exceptional exercise. But if you’re new to it, you need to ease in and give your muscles time to adapt to its intensity. Even if you’re an experienced athlete, pushing yourself to your limit the first or second time you get on a spinning bike may be risky, Brogan says. Even once you’ve found your spinning legs, daily sessions may still be overkill. But if you’re looking for a high-intensity workout a few days a week—and especially if running or other forms of vigorous aerobic exercise hurt your joints—spinning may be the ideal way to keep your heart and body in shape.  

  • Profile picture of wo886wo
    https://www.xmvalveactuator.com/solenoid-valve/
    Scholar

    Pneumatic actuators are commonly used to convert compressed air pressure (in the form of a cylinder stroke) into an oscillating rotary motion. Like other pneumatic components, they are durable, offer simplicity and high force for their size, and can operate in hazardous environments. There are two main types of pneumatic rotary actuators: rack and pinion, and vane – both are available in either single or double actuation: <ol=2></ol=2> Rack and pinion rotary actuators use a cylinder piston attached to a rack gear. When actuated, the piston and rack move in a linear fashion rotating the pinion gear and output shaft. A double rack unit utilizes two racks on opposite sides of the pinion gear, in effect, doubling the output torque of the unit. Vane actuators have a cylindrical chamber in which a vane is mounted on a central shaft. Air pressure applied on one side of the vane forces it to rotate until it reaches the end of the stroke. Alternatively, air pressure from the opposite side of the vane drives the shaft in the opposite direction until it reaches the end of stroke. In a single vane style, the rotary motion is typically limited to 280 degrees. In a double vane style, the motion is typically 90 or 100 degrees, offering less rotational range with double the force of the single vane construction. Our Series is an example of a vane actuator available in 9 sizes in single or double vane versions. Rotary actuators can often be overlooked in the specification process as common pneumatic cylinders are specified with a pivot arm to achieve the necessary rotary motion. However, rotary actuators have the potential to greatly simplify applications because they are self-contained components capable of supporting loads due to the internal bearing sets. Additionally, there is no need to design and construct external pillow block bearings. Unlike piston rods exposed to airborne contaminants, rotary actuators can reduce maintenance headaches in dirty environments. A butterfly valve is a quarter-turn rotational motion device that utilizes a rotary disc to allow, obstruct, or control the flow of fluids in a piping system. It features a rotating disc that is situated on the passageway of the flowing media. The disc is rotated and controlled by an external actuating mechanism through the stem attached to it. When the disc is coplanar to the flow cross-sectional area, the flow is fully obstructed. Otherwise, the fluid is fully or partially allowed to pass through the butterfly valve. It takes a 900 turn to fully open a butterfly valve from a closed position, which means the disc should lie perpendicular to the flow cross-sectional area. Butterfly valves are quarter-turn valves like ball valves and plug valves. They have a fairly simple construction and operation mechanism, and they have a compact size designed to fit two pipe flanges. They can be operated manually or by an automatic actuating mechanism that is integrated into the process control system of the pipeline. They are ideal for on-and-off applications, but their applications to flow throttling are limited. There are several types and designs of butterfly valves available, rated in varying temperatures, pressures, and flow rates to suit the needs of pipeline systems handling liquids and gases. A limit switch box is an electromechanical device operated by a physical force applied to it by an object. Limit switches are used to detect the presence or absence of an object. These switches were originally used to define the limit of travel of an object, and as a result, they were named Limit Switch. A solenoid valve is an electrically controlled valve. The valve features a solenoid, which is an electric coil with a movable ferromagnetic core (plunger) in its center. In the rest position, the plunger closes off a small orifice. An electric current through the coil creates a magnetic field. The magnetic field exerts an upwards force on the plunger opening the orifice. This is the basic principle that is used to open and close solenoid valves. There are several features of a filter regulator, all as important as the last. The point of an airline filter, regulator, lubricator is to ensure that every component or process is receiving a clean and lubricated supply of compressed air. But, this must also be done at the correct pressure to achieve peak performance. It is stated that every 2-psi increase in operating pressure adds an additional 1% to compression energy cost. Therefore, unregulated or incorrect pressure settings can result in increased compressed air demand and consequently high energy consumption. This excess of pressure can also create equipment wear, causing a rise in maintenance costs and a limited application lifespan. Air filter regulators maximize longevity and reliability, making them an essential component of many applications. There are a few different types of valve positioners available. Depending on the type of positioner, it either uses air or electricity to move the actuator. Let’s discuss some of the popular options. Pneumatic positioners receive pneumatic signals (usually 3-15 psig). The positioner then supplies the valve actuator with the correct air pressure to move the valve to the required position. Pneumatic positioners are intrinsically safe and can provide a large amount of force to close a valve. Electric valve positioners receive electric (usually 4-20 mA) signals. They perform the same function as pneumatic positioners do, but use electricity instead of air pressure as an input signal. There are three electric actuation types: single-phase and three-phase alternating current (AC), and direct current (DC) voltage. Electric-pneumatic valve positionerss convert current control signals to equivalent pneumatic signals. It uses a mix of both electricity and air, as implied by the name.  

  • Profile picture of wofilo
    wofilo
    Scholar

    Description:Oversize Long Knit Coat Color:Black Size: XS-3XL Fabric:80% Cotton 10% Viscose 10% Polyester Sampling Time:7 Days Sample Cost:If The Sample Is In Stock, It鈥檚 Free Of Charge If Need Special Making Sample, It鈥檚 Based On Customer鈥檚 Style Request Leadtime Of Bulk:30 Days After PP Sample Approved MOQ:500pcs Place Of Origin:Nantong, CHINA Details&Technology: Longer Length For More Coverage Raw Edge Cuts Medium Length:34鈥?/p> Inside Pocket Soft And Thin Knit Terry Fabric Oversize Casual Look We cooperated with many famous brand and get the certifications.low price Women's Coats Large Sizes website:http://www.jslifang.com/coat/women-s-coats-large-sizes/

  • Profile picture of xiop2v
    xiop2v
    Scholar

  • Profile picture of yeo688
    https://www.jmto-earbuds.com/usb-cable/typc-c-cable/
    Scholar

    Master alloys and alloying additives are alloy-element concentrates, grain refiners, hardeners, deoxidants, and other agents added to a melt or metal-powder blend to produce a particular alloy, modify a melt, or alter processing characteristics. They are designed to improve processes in metallurgy by refining the final properties of different rare metals. Alloying agents and elements are used as additions to modify or produce alloys in primary metal production melts, foundry melts, and powder metal-blend manufacturing.   Benefits of Master Alloys and Alloying Additives Master Alloys A master alloy is a pre-alloyed concentrate or mixture of alloying elements. They are used to add all the major alloying elements in one form to the base metal. For example, a 10% addition of 60% aluminum - 40% vanadium composition master alloy to 90% pure titanium will produce Ti-6Al-4V alloy. Master alloys are essential for adding small amounts of compounds with large melting point differentials. This is because adding a virgin metal to a melt can be inefficient in terms of energy and metal yield. For example, a small addition of pure copper (1083°C melting point) to a large mass of aluminum (660°C melting point) would require heating all the aluminum above 1083°C. A 50-50 master alloy of copper and aluminum eliminates unnecessary heating of the aluminum, allowing the correct percentage of this alloy to be added to the bulk of aluminum at a much lower temperature.  Master alloys are also the most effective method of introducing controlled levels of rare earth metals to more complex alloy systems. They help to control oxygen content within the alloy, stabilizing metals that would normally oxidize in the atmosphere. Copper-based master alloys are produced for the brass and copper industry. The range includes alloys such as Copper-Iron, Copper Manganese, Copper Boron and Copper Zirconium. The common factor among these alloys is that they dissolve better than the corresponding pure metal or metals. Using KBM Affilips copper-boron 2% master alloy is a great method for improving the quality of copper alloys and brasses. Boron is an effective deoxidiser for copper, without the harmful effect of reducing the electrical conductivity. The element is also highly effective when compared to other deoxidisers such as phosphorus, lithium or magnesium, therefore less boron is needed per kg of oxygen to achieve the same deoxidation effect. In copper alloys, boron also slows grain growth during heating. In addition, boron facilitates pouring and filling operations. In brasses, boron behaves as a strong grain refiner. It reacts with several elements present in the melt and the products formed are often insoluble compounds dispersed as fine particles through the melt which act as nucleants. The mechanical properties are increased with boron and the internal soundness of brass castings is improved.   Applications Major applications of copper boron alloys include: Deoxidiser for copper. Grain refiner for brass. Most of the ferrochrome produced worldwide is used in manufacturing stainless steel. The chromium content present in stainless steel provides resistance to corrosion as well as gives stainless steel its customary appearance. Around 18% of chrome is used in per unit content of stainless steel. Ferrochrome powder is used in the field of powder metallurgy. Ferrochrome slag is a chemically stable substance. It is used in road construction and civil engineering as well as in the production of refractory materials. Chromium powder can be used to repair and prevent the four pipes of the boiler, and metallurgically distribute the wear-resistant lining of the chute. The use of tubular wire surfacing with Cr3C2 will greatly increase the service life of the grinding roller.  

  • Profile picture of yida996
    https://www.jitaivalvegroup.com/globe-valves/
    Scholar

    Pressure seal construction is adopted for Valves for high pressure service, typically in excess of above 170 bar. The unique feature about the pressure seal Bonnet is that the body-Bonnet joints seals improves as the internal pressure in the Valve increases, compared to other constructions where the increase in internal pressure tends to create leaks in the body-Bonnet joint. The higher the internal pressure, the greater the sealing force. Easy dismantling is made possible by dropping the Bonnet assembly into the body cavity and driving out the four-segmental thrust rings by means of a push pin.   Relying on fairly simple design principles, pressure seal valves have proven their capability to handle increasingly demanding fossil and combined-cycle steam isolation applications, as designers continue to push boiler, HRSG, and piping system pressure/temperature envelopes. Pressure seal Valves are typically available in size ranges from 2 inches to 24 inches and ASME B16.34 pressure classes from #600 to #2500, although some manufacturers can accommodate the need for larger diameters and higher ratings for special applications. Pressure seal gate valves are available in many material qualities such as A105 forged and Gr.WCB cast, alloy F22 forged and Gr.WC9 cast; F11 forged and Gr.WC6 cast, austenitic stainless F316 forged and Gr.CF8M cast; for over 500°C, F316H forged and suitable austenitic cast grades. The pressure seal design concept can be traced back to the mid-1900s, when, faced with ever increasing pressures and temperatures (primarily in power applications), Valve manufacturers began designing alternatives to the traditional bolted-Bonnet approach to sealing the body/Bonnet joint. Along with providing a higher level of pressure boundary sealing integrity, many of the pressure seal globe valves design weighed significantly less than their bolted Bonnet Valve counterparts. Bolted Bonnets vs. Pressure Seals To better understand the pressure seal design concept, let's contrast the body-to-Bonnet sealing mechanism between bolted Bonnets and pressure seals. FIG. 1 depicts the typical Bolted Bonnet valve. The body flange and Bonnet flange are joined by studs and nuts, with a gasket of suitable design/material inserted between the flange faces to facilitate sealing. Studs/nuts/bolts are tightened to prescribed torques in a pattern defined by the manufacturer to affect optimal sealing. However, as system pressure increases, the potential for leakage through the body/Bonnet joint also increases. Pressure Seal Gaskets One of the primary components involved in sealing the pressure seal Valve is the gasket itself. Early pressure seal gaskets were manufactured from iron or soft steel. These gaskets were subsequently silver-plated to take advantage of the softer plating material's ability to provide a tighter seal. Due to the pressure applied during the Valve's hydrotest, a set (or deformation of the gasket profile) between the Bonnet and gasket was taken. Because of the inherent Bonnet take-up bolt and pressure seal joint elasticity, the potential for the Bonnet to move and break that set when subjected to system pressure increases/ decreases existed, with body/Bonnet joint leakage the result. This problem could be effectively negated by utilizing the practice of "hot torquing" the Bonnet take-up bolts after system pressure and temperature equalization, but it required owner/user maintenance personnel to do so after plant startup. If this practice was not adhered to, the potential for leakage through the body/Bonnet joint existed, which could damage the pressure seal gasket, the Bonnet and/or the I.D. of the Valve body, as well as creating compounding problems and inefficiencies that the steam leakage could have on plant operations. As a result, Valve designers took several steps to address this problem. Although many manufacturers still recommend hot torquing, the potential for leakage when this is not done is greatly diminished. The seating surfaces in pressure seal Valves, as in many power plant Valves, are subjected to, comparatively speaking, very high seating loads. Seat integrity is maintained as a function of tight machining tolerances on component parts, means of providing the requisite torque to open/close as a function of gears or actuation, and selection/ application of proper materials for seating surfaces. Cobalt, nickel, and iron-based hardfacing alloys are utilized for optimal wear resistance of the wedge/disc and seat ring seating surfaces. Most commonly used are the CoCr-A (e.g., Stellite) materials. These materials are applied with a variety of processes, including shielded metal arc, gas metal arc, gas tungsten arc, and plasma (transferred) arc. Many pressure seal Globe Valves are designed having integral hardfaced seats, while the Gate Valves and Check Valves typically have hardfaced seat rings that are welded into the Valve body. Both butterfly valves and ball valves offer unique benefits, so choosing between them in certain processes isn't a hard choice. It can be problematic when a process requires valve characteristics that both valves have. We need a deeper understanding of the butterfly valve vs ball valve in order to pick the correct valve. Teflon is a polymer compound formed by the polymerization of tetrafluoroethylene with excellent chemical stability, corrosion resistance, sealing, high lubrication and non-viscosity, electrical insulation and good aging resistance for media such as strong acid, strong alkali, strong oxidant. Its operating temperature is -200 ~ 180℃, poor fluidity, large thermal expansion. Teflon lined valves ensures extremely high chemical resistance and longevity, can be widely used in corrosive applications in the chemical, electric machinery,harmaceutical, petrochemical, fertilizer, pulp and paper, and metallurgical industries.

  • Profile picture of yiyangqianxi
    yiyangqianxi
    Scholar, Advocate

    Guangzhou Huale Inflatable Products Co., LTD is located in Guangzhou, China and now has become a modern enterprise integrated with designing, developing, producing, and marketing various inflatable products for more than 10 years. Our inflatable products include large water park, swimming pool, air track, inflatable sup, inflatable tent, inflatable games, inflatable bouncy castle, inflatable slide, inflatable boat, Ad inflatables. Huale owns advanced equipment, skilled workers, good management system and strict quality control. The products have got CE /UL certificate and are well received by the clients. So they are further exported to more than 30 countries and regions of the world such as Europe, America, Middle East, South Asia etc. We will maintain business principle of quality first, technology innovation and customer utmost and will keep harder efforts to meet the different requirements of the clients. Utmost and will keep harder efforts to meet the different requirements of the clients. Inflatable water park, swimming pool, air track, inflatable sup, inflatable tent, inflatable sport games, inflatable bouncer, inflatable slide, inflatable obstacle course, inflatable boat, Ad inflatables Water park, amusement park, party, gym, outdoor activity, home use and so on.China Yoga Inflatable Sup Paddle Board manufacturers website:http://www.airtightinflatable.com/

  • Profile picture of yoe228
    https://www.kingsci.com/antioxidants-ingredients/
    Scholar

    What are antioxidants? Antioxidants are molecules that fight free radicals in the body. Free radicals are compounds that can cause harm if they are too high in your body. They are related to a variety of diseases, including diabetes, heart disease and cancer. Your body has its own antioxidant defense system to control free radicals. However, antioxidants ingredients are also present in foods, especially in fruits, vegetables and other whole plant foods. Several vitamins, such as vitamins E and C, are effective antioxidants. Antioxidant preservatives also play a vital role in food production by extending shelf life. How do free radicals work Free radicals are constantly forming in your body. Without antioxidants, free radicals can quickly cause serious damage and eventually death. However, free radicals also have important functions vital to health. For example, your immune cells use free radicals to fight infection. Therefore, your body needs to maintain a certain balance between free radicals and antioxidants. When the number of free radicals exceeds that of antioxidants, it leads to a state called oxidative stress. Prolonged oxidative stress can damage your DNA and other important molecules in your body. Sometimes it even leads to cell death. DNA damage increases the risk of cancer, and some scientists speculate that it plays a key role in aging. Long-term oxidative stress can lead to an increased risk of negative health outcomes, such as cardiovascular disease and some types of cancer. While COVID accelerated the trend of adding Immunity Enhancement Ingredients to processed food, it is not exactly a new concept. Products with such characteristics—think probiotic yogurt products and gummy bears spiked with zinc and echinacea—have been growing in popularity for years. And food processors have grown in their understanding of how their products can improve the immune system. Cnidium is a native Chinese plant that has also been identified in the US in Oregon. Cnidium is a Traditional Chinese Medicine (TCM) that has been used for thousands of years, especially for dermatological conditions. It has been a common ingredient in Chinese lotions, creams, and ointments. A pro-erectile herb, Cindium monnieri extract and its main bioactive known as osthole appear to have mechanisms similar to Viagra in penile tissue and the hippocampus. The usable parts of cnidium are the fruit, seed, and whole plant. Active properties of cnidium are the coumarin derivatives including: Osthol Imperatorin Isopimpinellin Xanthotoxin Bergapten Additional coumarins have also been identified including cnidimonal, cnidimarin, and others. Cnidium is used orally for increasing sexual performance and libido, erectile dysfunction, infertility, body building, increasing energy, cancer, osteoporosis, and fungal and bacterial infections. Cnidium is used topically for pruritus, rashes, eczema, and ringworm. Monk fruit is also called Luo Han Guo or swingle. It looks like a small gourd, and it grows on a vine. Monk fruit is native to regions of Southeast Asia, including some parts of Thailand and China. Buddhist monks in the 13th century were the first to cultivate the fruit, which is the reason for its name. Fresh monk fruit spoils rather quickly. Traditionally, people used dried monk fruit in herbal medicines. Today, monk fruit is the most popular natural sweetener ingredients. The fruit extract contains substances called mogrosides, which are intensely sweet. According to the International Food Information Council Foundation, monk fruit is around 150–200 times sweeter than sugar. Some manufacturers mix the extract with different sugars to balance out the intensity. A variety of monk fruit sweeteners are available to purchase online. Monk fruit pros A monk fruit sweetener has several benefits when compared with sugar: Zero calories. Monk fruit extract contains no calories, which is helpful for people on diets that restrict a person’s caloric intake. Zero carbohydrates. The extract also contains no carbohydrates, which may make it ideal for people on low-carb or keto diets. Zero sugar. There is no sugar in pure monk fruit extract, which means that consuming it will not affect blood sugar levels. No harmful side effects. The U.S. Food and Drug Administration (FDA)Trusted Source considers monk fruit sweeteners to be generally regarded as safe. There appears to be no evidence that monk fruit sweeteners cause harmful side effects. Available in multiple forms. Monk fruit sweeteners are marketed as granules, powders, and liquids. Some products may be easy to carry and use throughout the day. Nutraceutical ingredients find a wide variety of applications, such as functional food & beverages, animal nutrition, pharmaceuticals, and personal care products. However, the inclusion of nutraceutical ingredients in food & beverage products, feed products, pharmaceuticals, and personal care products results in an increase in the prices of these end products. This, in turn, leads to lower adoption of such products, thereby stunting market growth. Over the past few years, there has been an increase in the demand for healthy alternatives of consumables as consumers have become increasingly conscious about the correct diet. Nutraceutical ingredients, when added to any kind of food & beverage product, result in the formation of functional food & beverages, which, in some way, impart a health benefit.  

  • Profile picture of yoh226
    http://www.handeair.com/screw-air-compressor/two-stage-air-compressor/
    Scholar

    How Do Air Compressors Work? Air compressors are an invaluable tool for both industrial work and DIY at home, and there are several different types to choose from depending on the job you need doing. Air compressors have a number of uses, such as to fill gas cylinders for industrial purposes and scuba diving, to create the power needed to run pneumatic tools and spray guns, for pumping up automotive tyres, and within heating and air conditioning systems. As we’ve touched on here, there are myriad uses for screw air compressor both in commercial and domestic environments. Within the category of air guns, there are several types, each of which is suitable for a different job. We’ve compiled a guide to all the major types of air compressor, how they work and how they differentiate from one another. Whether you’re an engineering manager or in charge of facilities for your company, being informed about how air compressors function and what they’re used for is handy and can help you make the proper decisions for your business and industry. Get all the information you need to know about air compressors, complete with the infographic below, with our comprehensive guide. We’ll address the benefits of using premium air compressors in your industry, as well as the questions of ‘what are compressors?’ and ‘how does a compressor work?’, covering all the essentials in one convenient place. The infographic below shows how a Hydrovane series rotary sliding vane air compressor works Since their invention in the 19th Century, mechanical, automated air compressors have continued to be one of the most widely used tools in industrial settings. Air compressors provide a continuous stream of power that is safer and cooler than many other forms of energy. For many industries, such as metal work and mining environments, air compressors are an absolutely essential tool. After the basic utilities of water, gas and electric, compressed air is actually considered to be the fourth utility. Air compressors are also an affordable choice of tool for many manufacturing jobs, as they are durable, and high quality types require minimal maintenance and repairs. Between the two main categories of compressor – the scroll (piston) compressor and the rotary screw (reciprocating) compressor, you have a tool for every type of industrial and commercial setting, as well as various domestic uses. The most common types of regular screw air compressor are single and dual phase, both of which operate in the same fundamental way, only dual phase has one more step involved in the compression process. In a single phase compressor, there is one chamber and the air is compressed a single time; in a dual phase, there are two chambers and the air is put through compression twice. Be careful not to confuse single and dual phase compressors with the number of cylinders a compressor has. Both types of compressor use two cylinders; one-cylinder compressors are less common, because air balancing is made easier with two cylinders. The difference between single and dual stage compressors is that in the former the cylinders are both the same size; in the latter they are different sizes. How Do Single and Dual Phase Compressors Operate? Single phase compressors, also referred to as piston air compressors, works in a relatively simple and straightforward way. First, air is drawn into the cylinder; from here, it is compressed once by a single piston movement within a vacuum system. The power of this compression is measured in PSI (pounds per square inch) or Bar – the higher the PSI/Bar, the more power the compressor has. In a single stage air compressor, the air is typically compressed at a rate of around 120 PSI (8.2 Bar). After the air has been compressed, it is sent into the storage tank from where it is dispelled into various tools as a source of energy. Dual phase compressors operate the same way, except there are two stages of compression, rather than just one. After the first round of compression, the air is sent into a second chamber, where it is compressed for the second time, at a rate of around 175 PSI (12.1 Bar). After this, the air is sent to a storage tank in which it is cooled down and ready for application. Both types of compressor are typically powered by either an electric or petrol motor, which drives the piston and causes the compression to happen. Single Phase and Dual Phase Applications Both function in fundamentally the same way and can be used for similar tasks, such as operating a pneumatic drill or other high-powered tools such as those found in a manufacturing plant. Single phase compressors tend to be used within domestic settings for smaller workshop jobs done with handheld tools, such as woodwork, metal work and general DIY. Dual phase compressors, on the other hand, are better for larger scale work in operations such as operations needed in vehicle repair shops, pressing factories and other plants where parts are manufactured. Oil-Free vs. Oil-lubricated Air Compressors Another way to compare variable frequency air compressor is to look at whether they use oil or not – there are oil-free and oil-based / lubricated compressors and both are suited to slightly different jobs. For the air to be drawn into the chamber safely and effectively, the piston needs to be in top working order. To work properly, the piston must be lubricated with oil. With regards to lubrication, there are two main types of compressor to choose from: oil-free and oil-based. The oil is used on the cylinder to ensure the compression goes smoothly. The Difference Between Oil-Free and Oil-Based Compressors Oil-free air compressors already have a lubricated cylinder (often with a non-stick material such as Teflon) and therefore require no further maintenance to work properly. Oil-based compressors require oil to be added to the piston area and changed regularly. Just how often you need to change the oil will be outlined in the manufacturer’s manual that came with your compressor. On the whole, oil-free compressors tend to weigh a lot less than oil-based compressors, as not only do they not have the weight of the oil, but they are more compact machines, requiring fewer separate parts to make them work. Oil-free compressors, being less complex in design, also tend to be more affordable than oil-based compressors. However, although they’re more weighty and expensive, oil-based compressors have their benefits. For one thing, they are strong and durable, and usually have a longer lifespan than their oil-free counterparts. This is usually because over time the greasing material (usually Teflon) begins to wear down and lose its lubrication abilities. Another important factor that should be considered when choosing between an oil-free and oil-based compressor is that the oil-less version tends to heat up faster and to a higher temperature than those which use oil. Compressors without oil also make a lot more noise than those with, so if you want a less noisy workplace, this is a factor to consider too. Oil-Free and Oil-based Compressor Applications Oil-free compressors are a great option for those in need of a lightweight, low maintenance tool for home use. Oil-based compressors are better suited to heavy duty jobs and commercial and industrial use, as although they’re generally heavier and require more maintenance, they are also more robust and versatile. For industrial purposes and extensive, day-long use, oil-based compressors are by far the best option. If you’re looking to invest in quality compressors for your business, opting for oil-based machines is almost certainly the best route to take. Within an industrial or commercial setting, there are numerous uses for oil-based PM screw air compressor, including: Vehicle painting and repairs Sanding and woodwork Creating snow banks in ski centres Tools within dentistry and other medical environments Pneumatic construction tools such as nail guns Air cleaning tools such as blowguns Oil-free compressors can be used for domestic use, such as small-scale jobs like blowing up balloons, home workshop and DIY jobs. They are also largely used in industries where there is a need to avoid the product or consumer coming into contact with oil: food and beverage, pharmaceutical and dental, for example. In these sensitive applications, the consequences of having oil contamination in the air are too high to risk, so having an oil free compressor is a must. There is compressed air quality testing from the International Organisation for Standardisation (ISO) which oil-free technology can help you achieve. Fixed vs. Variable Air Compressors Another factor to consider when choosing the right type of air compressor for your industry is whether they’re equipped with fixed or variable speed. Let’s take a closer look at what these different types of compressor can do for you. The main difference between air compressors that use a fixed speed system and those that use variable speed is the manner in which the motor gets its power. The compression element is much the same across all machines, but the way the motor operates has an effect on the usability, efficiency and lifespan of the machine. How Do VSD Compressors Work? Variable speed compressors (often referred to as VSD (Variable Speed Drive) or VFD (Variable Frequency Drive) – compressors) operates by automatically adjusting the motor speed in accordance with the demand for air. This happens through a system that converts voltage from the mains power supply into a variable frequency. Power is drawn through a converter, inside which it is converted twice. First, it converts AC power into DC power using diodes. A capacitor then cleans the AC, and then converts it to DC using a transistor, which acts as switches. These switches control the frequency of power sent to the motor, which in turn controls the speed of the motor. A VSD air compressor contains this technology, allowing the speed of the motor and the amount of air compression used to be closely controlled. There are pros and cons to both variable speed compressors and their counterpart, fixed speed compressors – check them out below to decide which one is best for your industry. Fixed Speed Pros and Cons Fixed speed air compressors send a consistent, continuous stream of power into the motor, which gives you a reliable frequency in all your air compression jobs. The initial cost of fixed speed compressors is lower than that of variable speed compressors, is easier and cheaper to maintain and is a must-have within industries where the power demand is continuous. This type of compressor is, however, less efficient than its variable speed counterpart. It is also less efficient at saving energy, and can therefore be more expensive to run, with fewer incentives available too. Variable Speed Pros and Cons Variable speed air compressors allow you to control the voltage and the frequency of the power in the motor, giving the user more agency over the tool. This type of compressor is more efficient when it comes to power usage, as you can easily control your output and only use what you need. Many industries will find that this type of air compressor is ideal, as it can be used in line with the demand of the job. When less power is needed, you can easily adjust the speed of the compressor, saving money and protecting the environment at the same time. The downsides of a variable speed compressor are that there is a higher initial capital cost to pay, and maintenance and repairs are more expensive too. They are also not well suited to applications that require a continuous stream of power. Piston Compressors, Scroll Compressors & Rotary Screw Compressors So far in this article, all the compressors mentioned are operated using pistons, which is a generic system for one type of compressor – the scroll compressor, also known as a reciprocating air compressor. The other type is the rotary screw compressor, which doesn’t have pistons and operates in a slightly different way. Here’s a quick overview of how scroll compressors and rotary screw / reciprocating compressors work, and what the unique benefits are of each of them. Scroll Compressors Scroll compressors are a type of piston compressor, and are also called reciprocating compressors. These are the most common type of two stage air compressor, due to affordability and general availability. But how does a reciprocating air compressor work? The piston system works by having a piston travel downwards, decreasing the pressure inside its internal cylinder through the creation of a vacuum. The sudden change in pressure causes the door of the cylinder to be forced open, and draw air in. When the piston travels up again, the air is forced out of the cylinder at a much higher pressure point. This continues in a reciprocating, ‘scroll’ pattern, hence its name. Pros and Cons of Scroll Compressors Pros: Cools down quickly More efficient use of energy Cons: Higher initial capital cost More complex parts – harder to maintain Rotary Screw Compressors Rather than using pistons, rotary screw compressors rely on rollers to do the compression. Rollers are positioned just off the middle of the central shaft to ensure that one side of the roller is always in contact with the wall. The rollers are powered, rotating extremely fast, causing the same result as scroll compressors: they draw in air at a low pressure and force it out at a higher pressure. Pros and Cons of Rotary Screw Compressors Pros: Good power capacity Lower initial capital price Easy to maintain Cons: Limited cooling abilities Require continuous maintenance checks How Do Low Noise Air Compressors Work? One complaint often heard around air compressors is that some of them are noisy due to friction and a power source, which can be distracting and inconvenient for both commercial and domestic use. The industry has risen to deal with these complaints however, and there are several low noise air compressors to choose from, offering a decibel rating of around 40 dB. 40 dB is considered low noise; 60 dB is considered the safest decibel level for compressors; anything over 85 dB could cause long-lasting damage to your hearing, and you should avoid being exposed to this level for extended periods of time. Low noise and silent air compressors are available in both oil-free and oil-based versions, so just how is the silencing effect achieved? As well as choosing compressors with low decibel levels, one aspect of this technology that makes a big difference is the inclusion of an acoustic chamber for containing the noise. Another tip is to opt for electric-powered compressors, rather than gas-powered, as the former type of power source makes for a quieter machine. The Bottom Line Which type of air compressor you go for depends on a variety of factors. You first need to consider what application the compressors will be used for? Do you need it for continuous, ongoing use in large industrial machinery, or will it be used sporadically? Your answers to these questions will help you decide on whether to go for variable or fixed speed compressors. Another question that you must factor into your decision is: how much do you want to spend? Remember that the initial price of a quality compressor is not the only expense associated with a compressor; consider also the cost of the power needed to run the machine, plus any related ongoing maintenance and repair costs. How much time and energy will investing in high quality compressors save your company? These are all important calculations that should be made before making your decision. Get in touch below if you wish to find out more.  

  • Profile picture of yohglen
    yohglen
    Scholar

    鈽匫ur History Chongqing Hongmei Technology Co., Ltd. Located in Chongqing , China, Hongmei is one of the largest exporter of gasoline cultivator gasoline engine, gasoline water pump, gasoline generatorand diesel cultivator, diesel engine, diesel water pump, diesel generator etc since 2004, so we have rich experience in this field. 鈽匫ur Factory Our company covers 20000 square meters and has more than 250 workers, in 2020 year our sale exceeded seven million USD, in addition our production and management are all running strictly with the ISO90001 system. 鈽匫ur Certificate Most of our products are approved by CE and each component is produced according to European Union Rohs Standard. 鈽匬roduction Market All of our products are widely sold over the world and get the high reputation, such as Europe, Asia, Middle East, America, Africa, etc. 鈽匫ur Service Before-sale services 1. 24 hours online, Your inquiry will be reply quickly. 2. Help you choose the most suitable machine 3. Introduce details of the machine for you with pictures or video. Sales service 1. Customized machine according to your request. 2. Test and inspect every machine with strict quality control. 3.Packing with standard export wooden box after you confirm the machine After-sales service 1. Offer the professional engineer help you to use the machine. 2. Offer technical support and professional engineer help you solve problems while using it. 3. Quality guarantee for two years. Free repair for quality problem during these years.3 Inch Sewage Diesel Water Pump suppliers website:http://www.agrotiller.com/

  • Profile picture of yu886yu
    http://www.luxpaperbox.com/cardboard-box/
    Scholar

    Seeing the joy on a loved one’s face when they’re handed a gift is one of the most rewarding moments. If you’re looking to wow your family and friends the minute they receive your gift, then a little creative gift wrapping is just what you need. Luckily, it doesn’t take much time, skill or money—once you have a few gift wrapping ideas. To offer you inspiration for your Christmas, birthday or holiday gifts, we’ve created a collection of over 20 gift wrapping ideas. From simple ribbon techniques to gift-wrapping masterpieces, we have something for everyone. And if you’re still looking for extra special presents for you loved ones, make sure to check out our personalized gifts. 1. Recycle In Style Design your own festive gift wrap from a material you already have: paper shopping bags. Make the project easier by choosing bags from stores that issue holiday patterns. Add colorful ribbon or string to your gift for extra personality. 2. Tea Towel Wrap Choose a gift wrap idea that also doubles as a gift: a tea towel. Bundle a bottle of wine, olive oil, sauce or balsamic vinegar for a present that will go straight to the kitchen. 3. Colorful Hodgepodge Gather your paints, paintbrushes, and sponges. Use white or solid colored paper as your base and sprinkle on all of your favorite colors in any shapes you want. Your gifts will be dressed full of character and personality. 4. Baked Goods Cardcoard Boxes Take empty cardboard candle boxes from rolls of parchment paper or foil. Paint them with festive colors and designs for decorative baked good gift package boxes or other food gift ideas. 5. Holiday Lights Christmas lights aren’t just for hanging on your roof. Cut open brown paper bags to create your wrapping material. Then, draw or paint a set of holiday lights on the paper for a jolly feel. 6. Paper Bows Cut bow shapes out of colored cardboard construction paper. Use an online printable for a cutting guide or make your own stencil. For a tasty twist to this project, fill the centers with a teaspoon of sprinkles. 7. Add A Tag Dress up brown paper gift wrap with fine string or ribbon. Add a gold foil holiday tag for a gift special box wrapping design that looks polished and professional. 8. Washi Tape Weave Washi tape isn’t just for home decor. You can use it to dress up your gift wrapping, too. Create a layered effect by weaving the tape horizontally and vertically in an alternating pattern. 9. 3D Wrapping Wrapping gifts for your kids, grandchildren or nephews? Create your own interactive gift wrap by gluing on their favorite toys like cars, crayons or building blocks. 10. Origami Bows Add a little fun to your gift wrapping project by designing bows out of origami paper. Fold several at a time so you have a stock of bows to use throughout the year. 11. Silver Detailing Wrap your gift in plain brown paper, then use a lustrous silver pen to add details. Draw geometrical shapes, snowflakes or simple lines to accentuate your package. 12. Using box to contain the gift For different kinds of gift, there are watch boxPVC boxfood boxperfume boxcosmetic box, etc.

  • Profile picture of zarachowdhary
    Zara Chowdhary
    Scholar

  • Profile picture of Zhjhoe8
    Zhjhoe8
    Scholar

    Our History We have our own R&D team, and we have strict standards for product development, production, inspection and delivery. Over 8 years of experience gives us the edge! Our Factory We has multiple tests from material purchasing to finished products by different departments, like QA, QC, sales representative, to guarantee all products are in perfect condition before shipment. We also accept the inspection by the third party you appointed. Our Product We are the manufacturer for lcd monitor, self kiosk, advertising player, advertising display, bar lcd and wall mount display with over 8 years experience of producing products. Product Application Our products have a wide range of applications, such as retail, catering and public services. Production Equipment We have an automated production line and a production-free workshop that greatly reduces production time, we provide OEM/ODM services to our customers worldwide. Production Market Our products have small hand areas all over the world, any place can become our customers. Our Service Our professional technical team can quickly provide pre-sales and after-sales service. and we have full experience in construction, our engineer team is integration of theory and practice. China Wall Mount Digital Display For Advertising manufacturers website:http://www.aiotdisplay.com/ website2:http://www.aiotlcd.com/