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  • DUCT SYSTEM DESIGN CONSIDERATIONS - RSES.orgExplore further

    2009-11-19u2002·u2002Radial duct system. 2 Figure 2. Extended plenum duct system (single plenum) ... along with a condensate line and/or emer-gency float switch to shut down the system in case of ... the recommendations of the manufacturer when installing a system utilizing flexible duct products.

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  • HVAC Ducting Principles and Fundamentals

    2012-6-24u2002·u2002DUCT MATERIALS 4 4.1 Metallic Ducts 4 4.2 Non Metallic ducts 5 5.0. DUCT SHAPES 6 5.1 Round Ducts 7 5.2 Rectangular Ducts 7 5.3 Oval Ducts 8 6.0. SUPPLY DUCT CONFIGURATIONS 8 6.1 Extended Plenum Systems 8 6.2 Reducing Trunk System 10 6.3 Spider System 11 6.4 Radial System 11 6.5 Perimeter Loop System 12 7.0. RETURN DUCT SYSTEMS 12

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  • Ductwork - Alpine Home Air

    2021-2-15u2002·u2002line Suction Supply air Condensate catch pan Condensate drain Condensate catch pan Condensate drain Figure 28-6. The three types of air conditioning evaporators. In residential installations, the A-coii type is most commonly used. building that is odd-shaped or long cannot use the plenum is extended with rectangular duct, and all radial system.

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  • Contra-Rotating Propeller - an overview

    – Fuel consumption is higher. The higher propeller rpm at lower speed is hydrodynamically suboptimal. The CPP requires a bigger hub (0.3–0.32D). The pitch distribution is suboptimal. The usual radial direction, almost constant, pitch would cause negative angles of attack at the outer radii for reduced pitch, thus slowing the ship down.

    Get Price
  • Roll Forming Machine - JINGGONG Sandwich Panel Line,

    Jinggong manufactures types of roll forming machines to fit your budget & application: purlin forming machine, steel deck roll forming machine, high speed roll forming machine, Guardrail Roll Forming Machine, Downspout Roll Forming Machine. 20 Years Experience. High …

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  • Nusselt Correlations in a Trailing Edge Cooling System ...

    30:1 PMMA scaled model reproducing the typical wedge-shaped discharge duct of a trailing edge cooling system with one row ... different inter-pedestal regions along the radial direction. These ...

    Get Price
  • Dimensioning and Tolerancing - The College of New Jersey

    2020-3-16u2002·u2002Standard Practices- Reading Direction All dimension and note text must be oriented to be read from the bottom of the drawing (relative to the drawing format). Placement of all text to be read from the bottom of the drawing is called unidirectional dimensioning. Aligned dimensions have text placed parallel to the dimension line with vertical dimensions read from the

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  • A review of fly cutting applied to surface generation in ...

    2016-4-1u2002·u2002Generally, UPFC includes two cutting types. Fig. 1 shows the setup of diamond tools fixed with a spindle. One type, where the tool direction is parallel to the spindle axis, as shown in Fig. 1(a), is termed end-UPFC, i.e. end fly cutting .The other type, where the tool is mounted with the spindle along the radial direction, as shown in Fig. 1(b), is termed radial-UPFC (UPRM) .

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  • Ultrasonic Testing of Metal Bars and ... - Quality Magazine

    2015-10-12u2002·u2002Ultrasonic nondestructive testing (NDT) is a well-established technique that utilizes high frequency sound waves to locate cracks and other hidden flaws in metals, composites, and plastics. In the metals industry, ultrasonic inspection is not only used to inspect finished parts but also to inspect raw material in the form of bars, billets and plates supplied for further processing.

    Get Price
  • Ductwork - Alpine Home Air

    2021-2-15u2002·u2002line Suction Supply air Condensate catch pan Condensate drain Condensate catch pan Condensate drain Figure 28-6. The three types of air conditioning evaporators. In residential installations, the A-coii type is most commonly used. building that is odd-shaped or long cannot use the plenum is extended with rectangular duct, and all radial system.

    Get Price
  • HVAC Ducting Principles and Fundamentals

    2012-6-24u2002·u2002DUCT MATERIALS 4 4.1 Metallic Ducts 4 4.2 Non Metallic ducts 5 5.0. DUCT SHAPES 6 5.1 Round Ducts 7 5.2 Rectangular Ducts 7 5.3 Oval Ducts 8 6.0. SUPPLY DUCT CONFIGURATIONS 8 6.1 Extended Plenum Systems 8 6.2 Reducing Trunk System 10 6.3 Spider System 11 6.4 Radial System 11 6.5 Perimeter Loop System 12 7.0. RETURN DUCT SYSTEMS 12

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  • Optimisation of Sensor Arrays for Radial Mode Analysis in ...

    For a rigid, infinitely long, straight cylindrical duct, the linearized Euler equations in the frequency domain with Sketches of conventional radial mode detection methods with (a) radial rake [14 ...

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  • Just-in-Time Training for Radial Arterial Line Placement

    2019-11-15u2002·u20028. Step-by-step visual guide for arterial line placement: Figure 1: Angle the radial artery catheter with fingers pointed towards the direction of the artery (more common technique). Figure 2: Angle the radial artery catheter with wrist flexing along the direction of the radial …

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  • Numerical and Experimental Aerodynamic Investigation of

    This behavior has a significant effect on the downstream strut, which is a zero lift wing profile, designed for relatively low incidence with low variations in the radial direction. At the NRT surface (Fig. 11(d) ), the 0 % and 10 % SST and the 10 % SBES all predict a similar profile, whereas for the 30 % and the 40 % cases, the swirl increases ...

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  • A Long-Term, High-Quality, High-Vertical-Resolution GPS ...

    2015-6-1u2002·u2002The National Center for Atmospheric Research (NCAR) GPS dropsonde system called the Airborne Vertical Atmospheric Profiling System (AVAPS) was developed in the 1990s and is the only operational dropsonde system in the world capable of providing research-quality, high-resolution, reliable atmospheric profiles in hard-to-reach locations.

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  • (PDF) Design for Manufacturing and Assembly of Washing

    Conference Paper. May 1992. M. Curtis. Jas Walia. A. Lashbrook. Design for Manufacture and Assembly (DFMA) is now a widely accepted technique and is used in many manufacturing industries seeking ...

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  • Improving Fan System Performance

    2013-8-26u2002·u2002along with a listing of the resources, tools, software, videos, and workshops. Appendices The sourcebook includes two appendices. Appendix A is a glossary that defines terms used in the fan system industry. Appendix B presents an overview of the fan system marketplace. The Systems Approach The cost-effective operation and maintenance of a

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  • Ultrasonic Testing of Metal Bars and ... - Quality Magazine

    2015-10-12u2002·u2002Ultrasonic nondestructive testing (NDT) is a well-established technique that utilizes high frequency sound waves to locate cracks and other hidden flaws in metals, composites, and plastics. In the metals industry, ultrasonic inspection is not only used to inspect finished parts but also to inspect raw material in the form of bars, billets and plates supplied for further processing.

    Get Price
  • Hub Review - Fairwheel Bikes Blog

    Hub Review. Welcome to the 4th edition of the Fair Wheel Hub review. In the previous review we brought Ron Ruff from White Mountain Wheels on board to give his thoughts as well. We figured having different points of view would be advantageous, so we've once again brought Ron back for the latest version.

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  • Should You Have the Air Ducts in Your Home Cleaned?

    2021-9-28u2002·u2002The bottom line is: no one knows. There are examples of ducts that have become badly contaminated with a variety of materials that may pose risks to your health. The duct system can serve as a means to distribute these contaminants throughout a home. In these cases, duct cleaning may make sense.

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  • HVAC Ducting Principles and Fundamentals

    2012-6-24u2002·u2002DUCT MATERIALS 4 4.1 Metallic Ducts 4 4.2 Non Metallic ducts 5 5.0. DUCT SHAPES 6 5.1 Round Ducts 7 5.2 Rectangular Ducts 7 5.3 Oval Ducts 8 6.0. SUPPLY DUCT CONFIGURATIONS 8 6.1 Extended Plenum Systems 8 6.2 Reducing Trunk System 10 6.3 Spider System 11 6.4 Radial System 11 6.5 Perimeter Loop System 12 7.0. RETURN DUCT SYSTEMS 12

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  • MVHR buyers guide - Renew

    2019-6-30u2002·u2002The size of the duct work varies between different systems and airflow volumes, but typically internal distribution ductwork is 70 to 90 mm in diameter. Avoid lightweight flexible duct (the foil type) as it tears easily, is difficult to connect in a reliable airtight manner and has high airflow resistance due to the internal ridges.

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  • FAQs — Rega Vent

    What are the benefits or a radial or branched duct system? In terms of performance and resistance the systems are very similar and the duct sizes are specified at a design stage to ensure minimal pressure drop. The main benefit of a branched system is a lower cost, particularly if there is a loft space available for the duct routes.

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  • Linear Guideways

    Linear guideways provides linear motion by re-circulating rolling elements between a profiled rail and a bearing block. The coefficient of friction on a linear guideway is only 1/50 compared to a traditional slide and they are able to take loads in all directions.

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  • SPE20ES

    2020-11-10u2002·u2002pressure and return line. DIRECTIONAL CONTROL VALVES These control the direction of the flow of hydraulic power to the drive wheel motors. The control has a three position function:- forward, reverse and neutral. Left and Right controls are independent of each other giving instant forward, reverse and precise steering control.

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  • (PDF) Design for Manufacturing and Assembly of Washing Machine

    Conference Paper. May 1992. M. Curtis. Jas Walia. A. Lashbrook. Design for Manufacture and Assembly (DFMA) is now a widely accepted technique and is used in many manufacturing …

    Get Price
  • Duct Burner, Particularly for a Fuel Cell System - BEHR ...

    The invention relates to a duct burner (1), particularly for a fuel cell system (2), in which two media are brought together, mixed and combusted to generate heat.To this end, the duct burner (1) has a number of nozzles (9), which are distributed over a surface and via which the media are fed to a burn-out chamber (8).Before feeding to the nozzles (9), the first medium in a first distributing ...

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  • A Noncontact Method for Locating Radial Artery above ...

    2020-5-7u2002·u2002A radial artery above the radial styloid process is called GUAN and is a critical position for collecting pulse wave in traditional Chinese medicine theory. Locating GUAN is a precondition for collecting radial pulse wave. However, existing methods for locating GUAN lead to large deviations. This paper proposes a novel nontouch method for locating GUAN based on thermal …

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  • Find quality Manufacturers, Suppliers, Exporters ...

    Find quality Manufacturers, Suppliers, Exporters, Importers, Buyers, Wholesalers, Products and Trade Leads from our award-winning International Trade Site. Import & Export on alibaba.com

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  • Ventilation Duct, HVAC Ductwork Manufacturer of China

    Professional Ventilation Duct Supplier in China. Biyang, as an expert Ventilation Duct of HVAC industry, has been in this area for more than 10 years. Our products cover Flexible Duct, Rigid Metal Ducting, and all kinds of ducting fittings and accessories. As a professional manufacturer, we Biyang can meet all of your demands for ventilation ...

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  • Round Spiral Duct for HVAC Duct Systems

    2021-9-28u2002·u2002Spiral Round Duct. Spiral round lock-seam duct is the most efficient way to transport air in HVAC systems. The round profile greater flow efficiencies than rectangular ducts. Because round ducts are inherently stronger than rectangular profiles, they can be lighter metal gauges and can be installed in longer spans.

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  • HVAC - How to Size and Design Ducts - CED Engineering

    2020-10-15u2002·u2002Static Pressure is the pressure that causes air in the duct to : flow. Static pressure is the outward push of air against duct surfaces and is a measure of resistance when air moves through an object like duct work. Measured in inches of water column (in-wc), it acts equally in all directions and is independent of velocity. 2. Velocity pressure

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  • Eindec Corporation Ltd :: HVAC Products

    HVAC Products. On industrial platforms where ultraclean environments are required, Eindec's cleanroom equipment meets the gold standard in performance. Under such demanding conditions, the concentration of airborne particles must be controlled within predefined limits. These contaminants are by-products that primarily originate from equipment ...

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  • Burgess-Aarding - Industrial Silencers for Gas Facilities ...

    2021-9-28u2002·u2002CECO KB Duct is a leader in standard, modular ducting systems (clamp-together and flanged), individual components and application-specific duct solutions for industrial dust, fume, mist and air handling systems. KB Duct began as a part of CECO Kirk & Blum brand, which has been in operation since 1907.

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  • Air Distribution Products

    Air Distribution Products. Our dependable quality, reliable delivery and knowledgeable follow-up service has made Price a market leader in supplying air distribution products and related equipment. Whatever your building requirements, you can rely on our staff to provide the expertise and service required to get the job done right.

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  • Dictionary of Technical Terms for Aerospace Use - A - NASA

    2004-1-7u2002·u2002Along this line auroras are seen on an average of 240 nights a year. The frequency of auroras falls off both to the north and to the south of this line but more rapidly to the south. The most severe blackouts occur in the auroral zone. aurora polaris = aurora borealis. austausch coefficient = exchange coefficient. australite See tektite.

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  • A Noncontact Method for Locating Radial Artery above ...

    2020-5-7u2002·u2002A radial artery above the radial styloid process is called GUAN and is a critical position for collecting pulse wave in traditional Chinese medicine theory. Locating GUAN is a precondition for collecting radial pulse wave. However, existing methods for locating GUAN lead to large deviations. This paper proposes a novel nontouch method for locating GUAN based on thermal …

    Get Price
  • (PDF) A CASE STUDY OF THE FAILURE OF AN ELECTRIC

    In common domestic electric cooker hea ter the r esistance element is typically. made of a 316 stainless steel tube sheath welded at the seam and filled w …

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  • Cengel fluid mechanics 6 edition.PDF - Free Download PDF Ebook

    The fully developed flow in a circular pipe is one-dimensional since the velocity varies in the radial r-direction but not in the angular u- or axial z-directions, as shown in Fig. 1–20. That is, the velocity profile is the same at any axial z-location, and it is symmetric about the axis of the pipe.

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  • DUCT SYSTEM DESIGN CONSIDERATIONS - RSES.org

    2009-11-19u2002·u2002Radial duct system. 2 Figure 2. Extended plenum duct system (single plenum) ... along with a condensate line and/or emer-gency float switch to shut down the system in case of ... the recommendations of the manufacturer when installing a system utilizing flexible duct products.

    Get Price
  • HVAC Ducting Principles and Fundamentals

    2012-6-24u2002·u2002DUCT MATERIALS 4 4.1 Metallic Ducts 4 4.2 Non Metallic ducts 5 5.0. DUCT SHAPES 6 5.1 Round Ducts 7 5.2 Rectangular Ducts 7 5.3 Oval Ducts 8 6.0. SUPPLY DUCT CONFIGURATIONS 8 6.1 Extended Plenum Systems 8 6.2 Reducing Trunk System 10 6.3 Spider System 11 6.4 Radial System 11 6.5 Perimeter Loop System 12 7.0. RETURN DUCT SYSTEMS 12

    Get Price
  • Ductwork - Alpine Home Air

    2021-2-15u2002·u2002line Suction Supply air Condensate catch pan Condensate drain Condensate catch pan Condensate drain Figure 28-6. The three types of air conditioning evaporators. In residential installations, the A-coii type is most commonly used. building that is odd-shaped or long cannot use the plenum is extended with rectangular duct, and all radial system.

    Get Price
  • Contra-Rotating Propeller - an overview

    – Fuel consumption is higher. The higher propeller rpm at lower speed is hydrodynamically suboptimal. The CPP requires a bigger hub (0.3–0.32D). The pitch distribution is suboptimal. The usual radial direction, almost constant, pitch would cause negative angles of attack at the outer radii for reduced pitch, thus slowing the ship down.

    Get Price
  • Roll Forming Machine - JINGGONG Sandwich Panel Line,

    Jinggong manufactures types of roll forming machines to fit your budget & application: purlin forming machine, steel deck roll forming machine, high speed roll forming machine, Guardrail Roll Forming Machine, Downspout Roll Forming Machine. 20 Years Experience. High …

    Get Price
  • Nusselt Correlations in a Trailing Edge Cooling System ...

    30:1 PMMA scaled model reproducing the typical wedge-shaped discharge duct of a trailing edge cooling system with one row ... different inter-pedestal regions along the radial direction. These ...

    Get Price
  • Dimensioning and Tolerancing - The College of New Jersey

    2020-3-16u2002·u2002Standard Practices- Reading Direction All dimension and note text must be oriented to be read from the bottom of the drawing (relative to the drawing format). Placement of all text to be read from the bottom of the drawing is called unidirectional dimensioning. Aligned dimensions have text placed parallel to the dimension line with vertical dimensions read from the

    Get Price
  • A review of fly cutting applied to surface generation in ...

    2016-4-1u2002·u2002Generally, UPFC includes two cutting types. Fig. 1 shows the setup of diamond tools fixed with a spindle. One type, where the tool direction is parallel to the spindle axis, as shown in Fig. 1(a), is termed end-UPFC, i.e. end fly cutting .The other type, where the tool is mounted with the spindle along the radial direction, as shown in Fig. 1(b), is termed radial-UPFC (UPRM) .

    Get Price
  • Ultrasonic Testing of Metal Bars and ... - Quality Magazine

    2015-10-12u2002·u2002Ultrasonic nondestructive testing (NDT) is a well-established technique that utilizes high frequency sound waves to locate cracks and other hidden flaws in metals, composites, and plastics. In the metals industry, ultrasonic inspection is not only used to inspect finished parts but also to inspect raw material in the form of bars, billets and plates supplied for further processing.

    Get Price
  • An Introduction to Machinery Vibration - Reliable Plant

    2021-9-21u2002·u2002An Introduction to Machinery Vibration. In simplest terms, vibration in motorized equipment is merely the back and forth movement or oscillation of machines and components, such as drive motors, driven devices (pumps, compressors and so on) and the bearings, shafts, gears, belts and other elements that make up mechanical systems.

    Get Price
  • Round Spiral Duct for HVAC Duct Systems

    2021-9-28u2002·u2002Spiral Round Duct. Spiral round lock-seam duct is the most efficient way to transport air in HVAC systems. The round profile greater flow efficiencies than rectangular ducts. Because round ducts are inherently stronger than rectangular profiles, they can be …

    Get Price
  • Atmospheric Duct Estimation Using Radar Sea Clutter ...

    2014-6-1u2002·u2002The red line indicates variations of duct height vs distance. Citation: Journal of Atmospheric and Oceanic Technology 31, 6; 10.1175/JTECH-D-13-00025.1 More detailed descriptions about the Wallops'98 experiment and the data quality control are available in Rogers et …

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  • A Long-Term, High-Quality, High-Vertical-Resolution GPS ...

    2015-6-1u2002·u2002The National Center for Atmospheric Research (NCAR) GPS dropsonde system called the Airborne Vertical Atmospheric Profiling System (AVAPS) was developed in the 1990s and is the only operational dropsonde system in the world capable of providing research-quality, high-resolution, reliable atmospheric profiles in hard-to-reach locations.

    Get Price
  • Nordson EFD Solutions

    2018-10-27u2002·u2002The best choice for this application is a radial spray system. EFD's 782RA radial spray valve uses Low Volume Low Pressure (LVLP) technology to apply uniform coatings. It's perfect for spraying low- to medium-viscosity materials inside of parts that are 25.4 mm (1') to 304.8 mm (12') in diameter.

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  • EFD and CFD Design and Analysis of a Propeller in ...

    Ducted propellers, in decelerating duct configuration, may represent a possible solution for the designer to reduce cavitation and its side effects, that is, induced pressures and radiated noise; however, their design still presents challenges, due to the complex evaluation of the decelerating duct effects and to the limited amount of available experimental information. In the present paper, a ...

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  • Multimodality Imaging-based Evaluation of Single-Lumen ...

    2017-2-10u2002·u2002Breast implants are frequently encountered on breast imaging studies, and it is essential for any radiologist interpreting these studies to be able to correctly assess implant integrity. Ruptures of silicone gel–filled implants often occur without becoming clinically obvious and are incidentally detected at imaging. Early diagnosis of implant rupture is important because surgical removal of ...

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  • 6 Best HVAC Zone Dampers: Reviews For AC Duct Systems

    The Ecojoy SmartZone-2L is a great control board kit for simple 2-zone systems. With the 2 nd stage lockout, you can eliminate the need for a bypass duct that can hold moisture and grow mold. The board is more affordable than the X line (our top picks) but lacks the ability to …

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  • Piping Elbows vs Bends for Piping and Plumbing Systems ...

    2019-12-10u2002·u2002What is a Piping Elbow? A PIPING ELBOW, on the other hand, is a specific, standard, engineered bend pre-fabricated as a spool piece (based on ASME B 16.9) and designed to either be screwed, flanged, or welded to the piping it is associated with.An elbow can be 45 degrees or 90 degrees. There can also be custom-designed elbows, although most are categorized as either 'short radius' or …

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  • Pan Brake Folders

    2021-9-23u2002·u2002Pan Brake Folders for Sale. Working with sheet metal isn't easy, and it isn't made easier by gear that isn't up to the task. When it comes to getting your hands on the sheet metal fabrication equipment that you need to produce work to a consistently high standard, Asset Plant & Machinery is the team to look to.. We can help you develop the range and capabilities you need to get the job done.

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  • A Noncontact Method for Locating Radial Artery above ...

    2020-5-7u2002·u2002A radial artery above the radial styloid process is called GUAN and is a critical position for collecting pulse wave in traditional Chinese medicine theory. Locating GUAN is a precondition for collecting radial pulse wave. However, existing methods for locating GUAN lead to large deviations. This paper proposes a novel nontouch method for locating GUAN based on thermal imaging and image ...

    Get Price