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Liquid nitrogen level meter for high-temperature superconductor (HTS)PARK Heecheol, JEONG Hwanjun, LEE Changyeung, KIM Purn, CHO Jangwon, KIM Seokho(School of Mechatronics, Changwon National University, Changwon 641-773, Korea)Abstract:Many kinds of high temperature superconductor (HTS) power machines such as HTS cable, HTS fault current limiter and HTS magnet are cooled by liquid nitrogen......
Use of nitrogen gas in high-speed milling of Ti-6Al-4V KE Ying-lin(柯映林)1, 2, DONG Hui-yue(董辉跃)1, LIU Gang(刘 刚)1, ZHANG Ming(章 明)1 1. Zhejiang Provinvicial Key Laboratory of Advanced Manufacturing...; Abstract: To inhibit chips burning in the high-speed cutting of Ti-6Al-4V, nitrogen gas with 0.7 MPa pressure was ejected at the milling zone. The high speed flowing of nitrogen gas......
J. Cent. South Univ. (2020) 27: 1846-1860 DOI: https://doi.org/10.1007/s11771-020-4412-0 Fracture evolution in coalbed methane reservoirs subjected to liquid nitrogen thermal shocking YAN Hong(严红... and Springer-Verlag GmbH Germany, part of Springer Nature 2020 Abstract: Thermal shocking effect occurs when the coalbed methane (CBM) reservoirs meet liquid nitrogen (LN2) of extremely low temperature......
Trans. Nonferrous Met. Soc. China 23(2013) 818-823 Preservation efficiency of new cryoprotectant used for Acidithiobacillus ferrooxidans in liquid nitrogen Xue-ling WU1, Qi HU1, Dong-mei HOU1, Xiao... of Acidithiobacillus ferrooxidans (A. ferrooxidans) strain DC in liquid nitrogen was investigated. The optimal concentration of this new cryoprotectant for the maximal viable cell recovery......
that the biofilm has good nitrification efficiency. Key words: suspended aerobic biofilm A2O process; carbon and nitrogen ratio; nitrification liquid reflux ratio; nitrogen and phosphorus removal 传统A2O工艺因其具...氮质量浓度比为3.6时不同硝化液回流比下硝态氮的变化与总氮的去除率 Fig.2 Changes of nitrate and total nitrogen removal efficiency with different nitrification liquid reflux ratios when concentration ratio of COD to TN is 3.6 图3......
Microstructure change in Fe-based metallic glass and nanocrystalline alloy induced by liquid nitrogen treatmentM.C.Ria1,D.W.Ding1,2,Y.H.Sun1,W.H.Wang1,21. Institute of Physics, Chinese Academy of Sciences2. Songshan Lake Materials Laboratory摘 要:The effects of acyclic liquid nitrogen(LN) treatment in a temperature range of -196℃ to 50℃ on the thermal......
; 生物矿化; 液氮冻结; 机制; collagen; biomineralization; liquid nitrogen freezing; mechanism; [全文内容正在添加中] ......
as said in Part- I and the hardened specimen were quenched in liquid Nitrogen which is at sub zero condition. The specimens were tested for its microstructure, hardness and wear loss. The results were...; Liquid Nitrogen; Quenching; Cryogenic Quenching; Hardening; [全文内容正在添加中] ......
conductivity ranges within 0.42~0.51 W/(m?K) from room temperature to 500 K, and the maximum dimensionless merit figure ZT value of 0.87 is obtained at 468 K. Key words: Bi2Te2.4Se0.6; liquid nitrogen......
with PEG-2000 in liquid nitrogen WU Xue-ling(吴学玲)1, 2, WU Xiao-yan(吴晓燕)1, DENG Fan-fan(邓凡凡)1, SHEN Li(申丽)1, 2, LI Jiao-kun(李交昆)1, 2, PENG Tang-jian(彭堂见)1, 2, YU Run-lan(余润兰)1, 2, LIU Yuan-dong(刘元东)1, 2, CHEN... GmbH Germany, part of Springer Nature 2020 Abstract: A mixed culture of bioleaching microorganisms was enriched. Then the mixed culture was preserved by liquid nitrogen cryopreservation for 6 months......