Xem 1-20 trên 105 kết quả Pump and system
  • This is a thorough revision of the definitive, classic text for any level course on refrigeration, refrigeration and air conditioning, and environmental control in buildings. It is an equipment-oriented textbook that applies theoretical results of engineering theories to refrigeration and air conditioning engineering problems. This enables the student to understand both common and uncommon problems in designing, selecting and applying air conditioning and refrigeration components and systems.

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  • Although inelastic scattering of light from molecules, a phenomenon now known as Raman scattering, was observed by C. V. Raman in 1928, the nonlinear phenomenon of stimulated Raman scattering was not demonstrated until 1962. Soon after low-loss silica fibers became available around 1970, Roger Stolen and coworkers used stimulated Raman scattering in such fibers not only for amplification of optical signals but also for constructing fiber-based Raman lasers.

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  • Larry Bachus and Angel Custodio met each other in the early 1990s in Puerto Rico. Larry was working on a pump and seal conversion in a pharmaceutical chemical plant and Angel was installing a computerized preventive maintenance system in the same plant. They had passed each other in the administrative offices at the plant and one day the maintenance engineer introduced them and suggested they work together. They became fast friends and have worked together on numerous projects over the years since, including this book....

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  • Hydraulic conductivity is the most important property of geological formations as the flow of fluids and movement of solutes depend on it. Among fluids, water and contaminant migration beneath, the ground surface have become critical for water resource development, agriculture, site restoration and waste disposal strategies.

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  • Antiquity Simple machines, such as the club and oar (examples of the lever), are prehistoric. More complex engines using human power, animal power, water power, wind power and even steam power date back to antiquity. Human power was focused by the use of simple engines, such as the capstan, windlass or treadmill, and with ropes, pulleys, and block and tackle arrangements; this power was transmitted usually with the forces multiplied and the speed reduced. These were used in cranes and aboard ships in Ancient Greece, as well as in mines, water pumps and siege engines in Ancient Rome.

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  • The scope of this subcourse takes in unit components of the absorption system, including their functions and maintenance; water treatment methods and their relationship to centrifugal systems; centrifugal water pumps and electronic control systems, including the relationship of amplifier, bridge and discriminator circuits to electronic controls. The subcourse consists of three lessons. Lesson 1. 2. 3. Direct Expansion and Absorption System. Centrifugal Systems and Water Treatment. Centrifugal Water Pumps and Electronic Control Systems.

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  • The spontaneous acquisition of resistance to a variety of unrelated cytotoxic compounds has important implications in medical treatment of infectious diseases and anticancer therapy. In the yeast Saccharomyces cerevisiaethis pheno-menon is caused by overexpression of membrane efflux pumps and is called pleiotropic drug resistance. We have found that allelic forms of the genes for the transcription activators Pdr1p and Pdr3p, designated PDR1-12and PDR3-33,respectively, mediate resistance to diazaborine....

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  • SUBCOURSE OD1750 EDITION A REFRIGERATION AND AIR CONDITIONING IV (EQUIPMENT COOLING) ..REFRIGERATION AND AIR CONDITIONING IV (EQUIPMENT COOLING) Subcourse OD1750 Edition A United States Army Combined Arms Support Command Fort Lee, VA 23801-1809 14 Credit Hours INTRODUCTION This subcourse is the last of four subcourses devoted to basic instruction in refrigeration and air conditioning.

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  • Self-priming Jet pumps manufactured in stainless steel AISI 304, suitable for water supply, domestic pressure boosting and small irrigation systems, pool and tank emptying and general clean water pumping. Maximum working pressure: 6 bar • Maximum liquid temperature: 35°C according EN 60335-2-41 for domestic uses 45°C for other uses

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  • Solar energy, light and heat radiation from the Sun, has been exploited by humans since ancient times using a variety of technology development than ever before. Solar radiation along with secondary resources of energy like wind and solar energy, water power and biomass, make the most of renewable energy available on earth. Only a tiny fraction of the available solar energy is used.

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  • Spirax Sarco recirculating feedwater spray systems type RFS are designed to provide additional flash steam condensing capacity on boiler feedtank applications. When the condensate return flowrate is high and the cold make-up flowrate is intermittent it is likely that valuable flash steam will be lost through the vent. To ensure that this flash steam is condensed it is often worthwhile to take feedwater from a relatively cool part of the feedtank and pump it to a spray nozzle.

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  • Operating / Parts Information You must be familiar with the operation of this machine before you attempt to troubleshoot or make any repairs to it. Basic operating and maintenance procedures are described in the Operator’s Manual supplied with the machine. Keep a copy of it with the machine at all times. Use the separate Parts Book supplied with the machine to order replacement parts. If either of the documents becomes lost, please contact Wacker Corporation to order a replacement.

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  • ... blows down based on conductivity, and makeup proportional systems ... pump is activated based on addition of a set amount of makeup to the cooling ... makeup ...

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  • A Liqui-Mover pump is a positive displacement pressure powered pump with a minimum of moving parts. The pumping action is accomplished using a positive pressure to push the liquid from the pump tank into the return line. The Liqui-Mover pump can handle high temperature and high pressure condensate without difficulty. Liqui-Mover pumps are available in nine sizes. They are available in many configurations, from individual components that are field assembled to complete packaged systems ready for connection to field piping.

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  • Drugs Acting on the Sympathetic Nervous System of the sympathetic division can be considered a means by which the body achieves a state of maximal work capacity as required in fight or flight situations. In both cases, there is a need for vigorous activity of skeletal musculature. To ensure adequate supply of oxygen and nutrients, blood flow in skeletal muscle is increased; cardiac rate and contractility are enhanced, resulting in a larger blood volume being pumped into the circulation. Narrowing of splanchnic blood vessels diverts blood into vascular beds in muscle.

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  • This book incorporates selected topics on theory, revision, and practical application models for water supply systems analysis. A water supply system is an interconnected collection of sources, pipes, and hydraulic control elements (e.g., pumps, valves, regulators, tanks) delivering consumers prescribed water quantities at desired pressures and water qualities. Such systems are often described as a graph, with the links representing the pipes, and the nodes defining connections between pipes, hydraulic control elements, consumers, and sources.

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  • Volume 2 of the four-volume The Facts On File Encyclopedia of Health and Medicine presents the body systems that nourish, cleanse, and protect the body. These are the systems of cells and fluids and the structures that transport them throughout the body. Though distinct in their functions and purposes, these systems overlap and integrate with one another in inseparable ways. The Cardiovascular System Volume 2 opens with “The Cardiovascular System,” the structures and functions that carry blood throughout the body.

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  • This manual implements Air Force Policy Directive (AFPD) 32-10, Installations and Facilities, by providing guidance for base and command liquid fuels maintenance (LFM) personnel with guide procedures for field maintenance of permanently installed Air Force-owned, -leased, or -controlled petroleum storage and dispensing systems. It also supplements detailed manufacturers’ instructions on specific equipment and applies to all Air Force systems and activities for which the civil engineer (CE) has maintenance responsibility....

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  • Applications of microelectromechanical systems (MEMS) and microfabrication have spread to different fields of engineering and science in recent years. Perhaps the most exciting development in the application of MEMS technology has occurred in the biological and biomedical areas. In addition to key fluidic components, such as microvalves, pumps, and all kinds of novel sensors that can be used for biological and biomedical analysis and measurements, many other types of so-called micro total analysis systems (TAS) have been developed.

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  • MECHANICAL ENGINEERING A Series of Textbooks and Reference Books Founding Editor L. L. Faulkner Columbus Division, Battelle Memorial Institute and Department of Mechanical Engineering The Ohio State University Columbus, Ohio Spring Designer’s Handbook, Harold Carlson Computer-Aided Graphics and Design, Daniel L. Ryan Lubrication Fundamentals, J. George Wills Solar Engineering for Domestic Buildings, William A. Himmelman Applied Engineering Mechanics: Statics and Dynamics, G. Boothroyd and C. Poli Centrifugal Pump Clinic, Igor J.

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