Browse Topic: Distributors

Items (36)
Polymer electrolyte membrane (PEM) fuel cells will play a crucial role in the decarbonization of the transport sector, in particular for heavy duty applications. However, performance and durability of PEMFC stacks is still a concern especially when operated under high power density conditions, as required in order to improve the compactness and to reduce the cost of the system. In this context, the optimization of the geometry of hydrogen and air distributors represents a key factor to improve the distribution of the reactants on the active surface, in order to guarantee a proper water management and avoiding membrane dehydration. To this purpose, the adoption of CFD simulation tools can provide a useful insight into the physical phenomena which determine the efficient operation of the fuel cell (e.g. transport of mass, heat, species, electrons and ions, electrochemical reactions, water formation and removal), providing a valuable support for the design and the optimization of the
Bulgarini, MargheritaDella Torre, AugustoMontenegro, GianlucaBaricci, AndreaGrimaldi, AmedeoMereu, RiccardoMarocco, LucaCollaku, AldoSavoldi, Laura
This SAE Aerospace Recommended Practice (ARP) is a tool that organizations may use to evaluate a non-authorized supplier’s processes for the prevention, detection, containment, adjudication, and reporting of suspect counterfeit and counterfeit EEE parts. See 3.1.1 and 3.1.2, which reference the use of AS6081 when performing pre-visit self-assessment and on-site assessment of non-authorized suppliers. This ARP is applicable for all organizations that procure EEE parts from suppliers other than authorized sources (e.g., independent distributors
G-19 Counterfeit Electronic Parts Committee
The healthcare supply chain has faced extraordinary challenges over the past few years, and a need for modernization has become apparent. Today, the supply chain is ready for a major upgrade that will drive operational improvements across the industry, while providing safer, better patient care. The manufacturers of medical devices and pharmaceutical products can lead the way by prioritizing adoption and implementation of data standards that enable industry stakeholders to share supply chain information in real time. When the standards are adopted by all healthcare trading partners, including wholesaler/distributors and healthcare providers, a dramatic, technology-enabled transformation will unfold
This ARP specifies the recommended methods of handling silver coated conductors and shield, by the conductor fabricator, wireinsulator, distributors, harness or assembly houses, and OEM’s. Red Plague mitigation depends upon each link in the chain of supply handling the wire and cable properly
AE-8D Wire and Cable Committee
Obsolescence Material management plays an important and vital role in today’s modern Aerospace manufacturing, Aerospace Maintenance, Repair and Overhaul industry as well as Aerospace Distributors. Aerospace vehicles have a considerable longer product life-cycle when compared to any other consumer goods like automobile and electronics industry. With the advent of new, disruptive technologies, many sources and supplies of materials including COTS and Standard catalogue parts, components and goods, which are widely used in an Aerospace manufacturing environment, are diminishing at a considerable rate and thus result in their obsolescence before the end disposal of the product life cycle. It is one of the leading causes to the sale of counterfeit and fraudulent parts and components, which can result in considerable deterioration of Quality and Cost to Customer. This technical paper emphasizes on the need for implementation of an effective Obsolescence management framework which an
Rajamani, Mani RathinamPunna, Eshwaraiah
This SAE Aerospace Standard (AS) standardizes inspection and test procedures, workmanship criteria, and minimum training and certification requirements to detect Suspect/Counterfeit (SC) Electrical, Electronic, and Electromechanical (EEE) parts. The requirements of this document apply once a decision is made to use parts with unknown chain of custody that do not have pedigree back to the original component manufacturer or have been acquired from a broker or independent distributor, or when there are other known risk elements that result in the User/Requester to have concerns about potential SC EEE parts. The tests specified by this standard may also detect occurrences of malicious tampering, although the current version of this standard is not designed specifically for this purpose. This standard ensures consistency across the supply chain for test techniques and requirements based on assessed risk associated with the application, component, supplier, and other relevant risk factors
G-19A Test Laboratory Standards Development Committee
Innovators at NASA's Glenn Research Center have developed several new technological innovations to improve the capability of Hall-effect thrusters, which are used primarily on Earth-orbiting satellites and can also be used for deep-space robotic vehicles. Hall thrusters are susceptible to discharge channel erosion from high-energy ion impingement, which can reduce operational thruster lifetimes. Glenn researchers have developed several approaches to mitigate this problem. One is a magnetic circuit design that minimizes discharge chamber ion impingement. Another successful improvement developed by Glenn is a means of replacing eroded discharge channel material via a channel wall replacement mechanism. A third innovation is a propellant distributor that provides both a high degree of flow uniformity, and shielding from back-sputtered contamination and other potential contaminants. All of these advances work toward increasing the operational lifetime and efficiency of Hall thrusters
This SAE Aerospace Standard (AS) standardizes inspection and test procedures, workmanship criteria, and minimum training and certification requirements to detect Suspect/Counterfeit (SC) Electrical, Electronic, and Electromechanical (EEE) parts. The requirements of this document apply once a decision is made to use parts with unknown chain of custody that do not have pedigree back to the original component manufacturer, or have been acquired from a broker or independent distributor, or when there are other known risk elements that result in the User/Requester to have concerns about potential SC EEE parts. The tests specified by this standard may also detect occurrences of malicious tampering, although the current version of this standard is not designed specifically for this purpose. This standard ensures consistency across the supply chain for test techniques and requirements based on assessed risk associated with the application, component, supplier, and other relevant risk factors
G-19A Test Laboratory Standards Development Committee
Motion control is essential for the digitization and automation of high-tech equipment, but bearings remain basic to frictionless movement. Bearing Engineers, a bearing distributor, recently changed its name to Motion Solutions (Aliso Viejo, CA) to better reflect their evolution into a custom designer of motion solutions for high-tech electromechanical systems. Developing custom solutions has lead to developing lines of proprietary products that the company manufactures in-house
The provisioning of medical gases to hospitals, mobile health providers, and in-patient care environments requires absolute conformance to stringent industry standards. As a result, manufacturers, distributors, and facility safety managers must have complete confidence in supply quality and continuity
Counterfeit items can be viewed as the by-product of a supply chain which has been compromised. While many industries are impacted, certain types of products can mean the difference between life and death. Electronics are of special interest, however, mechanical parts can also have dire consequences. The point is that the counterfeiting community is very diverse. The business model is fluid and unrestricted. Electronics today…hardware tomorrow. All of this leads to the need for an authentication platform that is agnostic to product. Most supply chains would benefit from a technical way to have assurance of authenticity - a benefit that could be shared by all. A comprehensive marking program, such as SigNature DNA, offers value to all supply chain participants as outlined below: Manufacturers will have the ability to effectively monitor their legacy components Authorized distributors will have an absolute way to verify and accept returns Defense contractors and agencies will have
Meraglia, JaniceMiller, Mitchell
This SAE Aerospace Standard (AS) identifies the requirements for mitigating counterfeit products in the Authorized Distribution supply chain by the Authorized Distributor. If not performing Authorized Distribution, such as an Authorized Reseller, Broker, or Independent Distributor, refer to another applicable SAE standard
G-19 Counterfeit Electronic Parts Committee
This SAE Aerospace Standard (AS) establishes requirements applicable to metal stock that is ordered and produced in accordance with an Aerospace Material Specification (AMS). Topics include producer requirements, distributor requirements, size and grain orientation nomenclature, and purchaser ordering information to distributors. Requirements of this document have been developed to address titanium and titanium alloys
AMS G Titanium and Refractory Metals Committee
This apparatus distributes dust (typical of the Martian surface) in a uniform fashion on the surface of multiple samples simultaneously. The primary innovation is that the amount of dust deposited on the multiple surfaces can be controlled by the time that the apparatus operates, and each sample will be subject to the same amount of dust deposition. The exact weight of dust that is added per unit of sample area is determined by the use of slides that can be removed sequentially after each dusting
This recommended practice is intended to serve as a procedure to verify the functional performance, design specifications or vendor claims of any PEM (Proton Exchange Membrane) type fuel cell stack sub-system for automotive applications. In this document, definitions, specifications, and methods for the functional performance characterization of the fuel cell stack sub-system are provided. The functional performance characterization includes evaluating electrical outputs and controlling fluid inputs and outputs based on the test boundary defined in this document. In this document, a fuel cell stack sub-system is defined to include the following: Fuel cell stack(s) – An assembly of membrane electrode assemblies (MEA), current collectors, separator plates, cooling plates, manifolds, and a supporting structure. Connections for conducting fuels, oxidants, cooling media, inert gases and exhausts. Electrical connections for the power delivered by the stack sub-system. Devices for monitoring
Fuel Cell Standards Committee
The lighting needs at the 460,000-square foot headquarters facility of Maines Paper and Food Service, Inc., a food distributor serving customers in 35 states, were recently re-evaulated. Like any large warehouse with 24x7 operations, this Conklin, NY facility bustles with activity across all shifts. Forklift operators zip back and forth through both ambient space and cold storage environments, which range from 70°F dry storage areas to 40°F refrigerated spaces to -20°F ice cream freezers. They rely on proper lighting to ensure safety and performance and until recently, the facility was illuminated with hundreds of 400W high-intensity discharge (HID) fixtures — a decade-old solution that resulted in under-lit spaces and poor-quality light
With the increasing use of ethanol blended motor fuels around the world, vehicle manufacturers as well as ethanol producers and distributors are interested in understanding ethanol's effects on materials corrosion. More specifically, General Motors continually evaluates fuel effects on fuel system materials and overall engine performance, and is studying the corrosive effects of chloride ions present in ethanol blended fuels, even at low part per million (ppm) levels. Chloride ions present in chemically polar motor fuels such as E85 are known to be one of the primary species involved in general pitting corrosion, galvanic corrosion, and stress corrosion cracking of automotive components. The authors conducted a 50K mile vehicle test program studying the performance and durability of two E85 Flex Fuel Vehicles (FFV) operating on E85, with specified ppm levels of chlorides. The American Society for Testing Materials (ASTM) International has established fuel specifications that limit the
Clark, Shaleen DeniseStudzinski, William
This recommended practice is intended to serve as a procedure to verify the functional performance, design specifications or vendor claims of any PEM (Proton Exchange Membrane) type fuel cell stack sub-system for automotive applications. In this document, definitions, specifications, and methods for the functional performance characterization of the fuel cell stack sub-system are provided. The functional performance characterization includes evaluating electrical outputs and controlling fluid inputs and outputs based on the test boundary defined in this document. In this document, a fuel cell stack sub-system is defined to include the following: Fuel cell stack(s) – An assembly of membrane electrode assemblies (MEA), current collectors, separator plates, cooling plates, manifolds, and a supporting structure. Connections for conducting fuels, oxidants, cooling media, inert gases and exhausts. Electrical connections for the power delivered by the stack sub-system. Devices for monitoring
Fuel Cell Standards Committee
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