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Two companies buy controlling interest in Acme Cryogenics

Gladstone Investment Corp., Acme Cryogenics' Senior Management Team, and Brant Point Partners bought controlling interest in Acme Cryogenics, Inc. from founder Roderic Fink.

Praxair celebrates its 100th anniversary

Praxair, Inc. celebrated the 100th anniversary of its founding and its 15th year as a publicly-traded corporation on January 24, 2007.

Linde Hydrogen Center inaugurated in Munich-Unterschleissheim

The inauguration of the new Linde Hydrogen Center in Munich-Unterschleissheim in October marked Linde AG's commitment and support to a hydrogen economy.

Yoed Rabin leads cryosurgical research team

Carnegie Mellon University's Yoed Rabin is leading an interdisciplinary research team in developing a new computerized research tool to assist surgeons in planning cryosurgery.

NHMFL to build hybrid resistive/superconducting magnet

NHMFL has received an $11.7 million National Science Foundation grant to build an innovative, next-generation hybrid resistive/superconducting magnet that will potentially revolutionize a technique used to learn more about little-understood molecules.

Barber-Nichols celebrates its 40th anniversary

Barber-Nichols celebrated its 40th anniversary with an open house for customers, employees, vendors and alumni.

Latest in Defining Cryogenics

Regenerators

Regenerators or regenerative heat exchangers are a key component of cryocoolers such as pulse tube cryocoolers (Cold Facts, August 2014). Regenerator performance greatly affects the coefficient of performance of cryocoolers. Improvements in regenerator design and, in particular, regenerator materials have been an important factor in the improvement of the performance...

Pulse Tube Cryocoolers

The development of pulse tube cryocoolers has been a significant topic of research and development over the past 20 or so years. Pulse tube cryocoolers have a number of advantages over other types of cryocoolers and are now available commercially. In order to understand pulse tube cryocoolers, it’s best to...

Thermal Expansion

Thermal expansion refers to the change in size (length or volume) that a material undergoes as its temperature changes. In cryogenic systems this effect can be quite large and must be allowed for in the design. In isotropic materials, which include most engineering materials, the thermal expansion is the same...

Latest in Cryo Central

Air Separation and Liquefaction

by Nils Tellier, PE, President, EPSIM Corporation (CSA CSM) nils@epsim.us All illustrations courtesy EPSIM Corporation Background History of Air Separation and Liquefaction This section builds on a rich history of methods to develop deep refrigeration and cryogenic liquefaction during the 19th Century. You are encouraged to read Cryo Central’s History...

Bose-Einstein Condensate

A Bose-Einstein condensate, first proposed in 1925 by Albert Einstein based on work done by Satyendra Nath Bose (the same Bose from whom the term boson is derived), is a super-cold state of matter in which almost all of the individual atoms have “condensed” down to the lowest possible quantum...

Cold Technology for Pest Control

While it does not reach temperatures cold enough to be called cryogenic, carbon dioxide snow is at the heart of a new way of dealing with unwanted pests. It utilizes a quick freezing process that takes advantage of the properties of carbon dioxide snow and has a number of benefits...

Cryogenic Finishing

The following 3 articles discuss the uses and procedures of various type of cryogenic finishing. 1) By Robin A. Rhodes, Cryogenic Institute of New England, Inc. rrhodes@nitrofreeze.com Cryogenic Deflashing is employed to remove undesired residual mold flash that remains on molded parts after they are removed or ejected from the...

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