標(biāo)題: Titlebook: Cryogenic Laboratory Equipment; A. J. Croft Book 1970 Springer Science+Business Media New York 1970 Europe.USA.cryogenics.information.liqu [打印本頁(yè)] 作者: 調(diào)戲 時(shí)間: 2025-3-21 18:17
書(shū)目名稱Cryogenic Laboratory Equipment影響因子(影響力)
作者: 飲料 時(shí)間: 2025-3-21 20:45 作者: conservative 時(shí)間: 2025-3-22 04:09
Hazards,d mechanical failure may have such serious consequences that the following steps should be followed scrupulously, however strong the temptation to take short cuts on account of lack of time, access to test equipment, etc.作者: Meander 時(shí)間: 2025-3-22 05:00 作者: 巡回 時(shí)間: 2025-3-22 12:03 作者: EXPEL 時(shí)間: 2025-3-22 13:54
Room-Temperature Machinery,ler than that at atmospheric pressure to the extent required to give the desired performance. In an external-work system the function of the compressor is to reduce the entropy — in this role Simon referred to compressors as “entropy squeezers.”作者: EXPEL 時(shí)間: 2025-3-22 20:55
uid nitrogen - notably to 4. 2°K and below. It does not deal with experimental techniques at low temperatures, but I have tried to bring the reader face to face with the brutishrealities of the necessary hardware. As weIl as giving information about sources of supply of equipment, I have gone into s作者: 一美元 時(shí)間: 2025-3-23 00:02 作者: Libido 時(shí)間: 2025-3-23 02:18
Kathinka Sinha-Kerkhoff,Kate Kirkd mechanical failure may have such serious consequences that the following steps should be followed scrupulously, however strong the temptation to take short cuts on account of lack of time, access to test equipment, etc.作者: invade 時(shí)間: 2025-3-23 07:23
Helium Gas Recovery Systems,t to recover the helium gas evaporated from the cryostats supplied from the liquefier, purify it to an extent acceptable to the liquefier, and store it under pressure at room temperature. In the case of a closed refrigeration system, storage of the charge of gas at room temperature when the plant is not running is likely to be the only problem.作者: ULCER 時(shí)間: 2025-3-23 11:25 作者: consolidate 時(shí)間: 2025-3-23 15:13 作者: dura-mater 時(shí)間: 2025-3-23 18:22
Helium Gas Recovery Systems,. Where liquid helium is bought out, it is a matter of returning the helium gas in cylinders to the supplier. There may be an economic advantage in returning the gas at a low level of impurity, and in this case what is said below about purification will be relevant. The owner of a liquefier will wan作者: linear 時(shí)間: 2025-3-23 22:18
Cryostat Dewars,ng the reader to make the appropriate simplifications for himself if he is working at higher temperatures. For straightforward experiments there may be a case for enclosing a container for liquid helium in a radiation shield and an outer vessel within which a high vacuum can be maintained. (See Crof作者: 標(biāo)準(zhǔn) 時(shí)間: 2025-3-24 05:19 作者: 吹氣 時(shí)間: 2025-3-24 06:53 作者: BLANK 時(shí)間: 2025-3-24 12:34 作者: GENRE 時(shí)間: 2025-3-24 17:53 作者: 口訣 時(shí)間: 2025-3-24 19:03
Kathinka Sinha-Kerkhoff,Kate Kirkng the reader to make the appropriate simplifications for himself if he is working at higher temperatures. For straightforward experiments there may be a case for enclosing a container for liquid helium in a radiation shield and an outer vessel within which a high vacuum can be maintained. (See Crof作者: ATRIA 時(shí)間: 2025-3-25 01:03
Kathinka Sinha-Kerkhoff,Kate Kirkases at pressures above atmospheric. The energy stored in a compressed gas may be considerable — in contrast with the case of a compressed liquid — and mechanical failure may have such serious consequences that the following steps should be followed scrupulously, however strong the temptation to tak作者: Glucose 時(shí)間: 2025-3-25 03:33 作者: resilience 時(shí)間: 2025-3-25 08:26 作者: cancellous-bone 時(shí)間: 2025-3-25 14:55 作者: 破布 時(shí)間: 2025-3-25 19:52 作者: Recess 時(shí)間: 2025-3-25 22:52
Payel Roy,Ritesh Kumar,Goutam Kumar RoyThere are three ways of cooling a gas: (1) by exploiting the . of another gas of lower boiling point; (2) by causing it to do .; and (3) by making use of the negative Joule — Thomson effect, arising from repulsive intermolecular forces which result in the performance of what is called . on expansion.作者: 落葉劑 時(shí)間: 2025-3-26 01:43 作者: 減至最低 時(shí)間: 2025-3-26 05:33
Three Tamil Diasporic Women’s One Mission: ,The construction of low-temperature equipment calls for materials with special physical properties, and the use of many materials at low temperatures brings special problems of its own. The relevance of various physical properties will be discussed first, and then we shall review the extent to which actual materials have them.作者: Classify 時(shí)間: 2025-3-26 10:12
Storage and Handling of Liquid Refrigerants,The extent of the problem of keeping heat out of a vessel containing a liquid refrigerant varies widely. Before we review the design of actual vessels it will put matters on a quantitative basis to consider two extreme cases, both of which resemble those arising in practice: a 5000-litre liquid-nitrogen tank and a 100-litre liquid-helium vessel.作者: STRIA 時(shí)間: 2025-3-26 14:45
Liquefiers and Refrigerators,There are three ways of cooling a gas: (1) by exploiting the . of another gas of lower boiling point; (2) by causing it to do .; and (3) by making use of the negative Joule — Thomson effect, arising from repulsive intermolecular forces which result in the performance of what is called . on expansion.作者: Alveoli 時(shí)間: 2025-3-26 17:27 作者: 秘密會(huì)議 時(shí)間: 2025-3-26 22:20 作者: 托人看管 時(shí)間: 2025-3-27 03:01 作者: Irrepressible 時(shí)間: 2025-3-27 05:39
liability have been quoted. Any omissions or errors must be put down either to my own ignorance, stupidity, or lack of will toget about the world, or perhaps to the difficulty I have had in extracting information from manufacturers. However, most have gone to great trouble to help, and I hope I have done them978-1-4757-4895-6978-1-4757-4893-2作者: 一大群 時(shí)間: 2025-3-27 09:58
Cryostat Dewars,w evaporation rate has to take second place to demands set by the experimental apparatus and its environment. For example, the neck tube has to be wide enough to pass over whatever is to be submerged in liquid helium and its length is usually determined by the distance between the floor and the ceil作者: Nonflammable 時(shí)間: 2025-3-27 15:40 作者: 嘲笑 時(shí)間: 2025-3-27 20:59 作者: Pelvic-Floor 時(shí)間: 2025-3-27 22:48
Establishment and Maintenance of Human CRC-Derived Organoids for PcG Studies,er regulators. In particular, the application of chromatin immunoprecipitations (ChIP)-sequencing (ChIP-seq) analyses to organoid models provides a powerful tool toward an accurate inquiry of PcG role in tumor development and maintenance.作者: 任意 時(shí)間: 2025-3-28 05:22 作者: 埋伏 時(shí)間: 2025-3-28 07:56 作者: Boycott 時(shí)間: 2025-3-28 14:04
ützung für die Implementierung gesundheitsf?rdernder Ma?nahmen. Best-Practice-Beispiele aus vier mittelst?ndischen Unternehmen veranschaulichen, worauf es dabei unter realen Arbeitsbedingungen ankommt..978-3-658-02961-6978-3-658-02962-3作者: 熱心助人 時(shí)間: 2025-3-28 15:55
Methodology for Biodiversity (Flora and Fauna) Study,lopment on biodiversity, this need to be assessed from a biodiversity viewpoint to indicate?the extent to which the disturbance will have impact on biodiversity. Several field studies were undertaken in order to gather authentic information on enumeration, quantification, and distribution of biodive作者: Morose 時(shí)間: 2025-3-28 21:20
ng der adsorbierten Moleküle zu machen suchte, und in vielen F?llen eine bestimmte Orientierung für sie angeben konnte. Diesen Fortschritt verdankt man in erster Linie .. Schon vor ihm hatte . eine solche M?glichkeit er?rtert, fast gleichzeitig mit . . wichtige Folgerungen aus einer solchen Auffassu作者: POWER 時(shí)間: 2025-3-29 01:55
Einleitung,rschung. Eine Ausnahme macht allein ihr nachklassisches Schicksal, dessen Kl?rung . verdankt wird.. Im übrigen finden sich gelegentliche Bemerkungen verschiedener Autoren, die zwar das Bild, das . von der . gegeben hat, in Einzelheiten ver?ndern, die wesentlichen Ergebnisse seiner Forschungen aber u
