Theoretical study on dust dynamics under cryogenic environment in a complex plasma is presented. Expansion process and cooling process of highly charged dust particles in a plasma containing background ultracold neutral particles are studied. The processes are described by kinetic theory with Fokker-Planck collision term of the interaction between neutral particles and dust particles. Time evol...

1 General Introduction New methods for marine salvage and decommissioning of structures in the open sea are continually being sought in order to improve control and lower operational costs [1]. The concept design of a lightweight, cryogenic, marine, heavy lift, buoyancy system has been investigated [2]. The objective is to be able to raise or lower high mass objects controlled solely from a sur...

The high speed steel is used as a cutting tool, since it has good quality and reliability at cheaper rate when compared to other cutting tools. So it is very important to increase the ability of the tool further for its reliability. So the best way is to increase the hardness. We have brainstormed to find out alternate tool materials. One novel method namely dipping the ordinary tool bit in a c...

The word, “Cryogenics” is taken from two Greek words – “kryos” which means cold or freezing, and “genes” meaning born or generated. Technologically, it means the study and use of materials (or other requirements) at very low temperatures. In general cryogenic treatment consists of slow cooling already heat treated part to approximately -196C, holding at low temperature up to prescribed period, ...

longitudinal heat conduction is an important parameter in the cryogenic field, especially in cryogenic heat exchangers. in the present work, the parasitic effect of tube wall longitudinal heat conduction on temperature measurement has been studied in cryogenic laminar hydrogen flow. the effects of various parameters such as wall cold end temperature, wall thermal conductivity, gas volumetric fl...

This work describes the optimization of cryogenic treatment (CT) parameters such as the cooling rate, the soaking temperature, the soaking time, the tempering temperature and the tempering time to maximise the tool wear of high speed steel tools in dry turning of AISI 316 grade austenitic stainless steels by Taguchi method. For this purpose, four iteration of Taguchi design (L16) have been used...