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According to Fig.3 and Fig.4 of temperature distributions as a function of time at the inlet/outlet of the PCM heat exchanger, the initial temperatures of phase change materials in the tubes were near to 40°C since the PCM heat exchanger had stored certain thermal energy before, at that time the phase change materials in the tubes were in liquid phase.
time; When the phase change materials (CaCl2·6H2O) in the tubes discharged all the latent heat, the temperatures of phase change materials in the tubes or the air at the outlet decreased progressively with the increase of time
(2) When the cold air lower than the phase transition temperature of phase change materials in the tubes flowed through the PCM heat exchanger, the phase change materials (CaCl2·6H2O) in the tubes discharged latent heat and their temperatures decreased.
(3) Since the phase change materials (CaCl2·6H2O) in the tubes encountered the cold air and discharged the stored thermal energy, the value of air velocity influenced greatly on the rate of thermal energy discharge of the phase change materials in the tubes when the cold air at the inlet maintained stably at a certain temperature.
Since phase change materials in the tubes are inorganic salt hydrate (CaCl2·6H2O) whose phase transition temperature is room temperature, it can be used in the situations of temperature control or maintenance at the certain temperature, such as greenhouses, air conditioning etc.

Editor Note It is a pleasure for me to serve as guest editor for a special issue of Materials Science Forum entitled "Deformation Processes of Rigid Plastic Materials".
I would like to thank the editor of the journal and all the authors for their contributions and for patience.
Sergei Alexandrov Institute for Problems in Mechanics Russian Academy of Sciences 101-1 Prospect Vernadskogo 119526 Moscow, Russia Tel.: +7 495 4343665; fax: +7 499 739 9531 E-mail address: sergei_alexandrov@yahoo.com

With the deepening reform of the management system of modern enterprises, the effective use of new technology and science has become increasingly important to every enterprise in order to make themselves in an invincible position in the competition must establish their own set of efficient operation of information management systems, the company embarked on a road of healthy development.
As a result of the traditional modern enterprises using traditional management methods , making a lot of manpower and material resources and financial waste in place may not be wasted , resulting in low efficiency of traditional modern enterprises .
The rapid development of modern science and technology in the modern society , a variety of high technology and equipment continue to be applied to a variety of business management process, so inevitably we need to introduce new equipment and management techniques in the management of modern enterprises to change the drawbacks of traditional modern enterprises .
Acknowledgements This work was financially supported by the 2013 Science Foundation of Hebei United University (Project No.
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Take lithium carbonate, silicon dioxide and titania as raw materials and then these powders were mixed according to the different ratios and grinded in an agate mortar for 15 min.
Introduction At present, solid-state lithium ceramics and liquid lithium as tritium breeder materials are used in fusion reactor.
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The material of rough surface is low-carbon steel Q245, and its material attribute is given in Table 1.
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According to the GSA standards[6], the standard value of the material strength values is taken.
According to the GSA standards, the standard value of the material strength values is taken.
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Acknowledges We gratefully acknowledge the National Natural Science Foundation of China (Nos.11374134) and Natural Science Foundation of Jiangxi Province (Nos.20114BAB202008) for their support of this work.
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At present, there are many materials satisfying the requirements, such as pure graphite bipolar plate, injection bipolar plate, expanded graphite bipolar plate, composite bipolar plate and metallic bipolar plate.
ASYS/LS-DYNA is a general explicit nonlinear dynamic analysis of finite element program, and can simulate the real world of various complicated nonlinear (large displacement, several big change and large strain), material nonlinearity (140 kinds of materials) and dynamic simulation of nonlinear (50) contact.
Acknowledgment The authors would like to thank the National Science Foundation of China (Grant Number: 50975214) and the Wuhan Science & Technology Bureau (Grant Number: 201010621229) for funding this study.
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However, THF is hard to manufacture the hollow thin-walled parts which have big length-radius and complex cross-sectional, due to the bad filling property and thinner wall thickness of tube if the materials in axial of tube can not be supplied in time.
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