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An Improved Preparation Technique for Pd/Ceramic Composite Membrane by Electroless Plating

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分子催化 1998年第2期 2-3页

作者： GUO Yanglong LU Guanzhong wang qin wang ren(Research Institute of Industrial Catalysis East China University of Science & Technology Shanghai 200237)

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关键词： Electroless plating Osmosis Pd/ceramic composite membrane

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一种二维不可压粘性流动的求解方法

哈尔滨工业大学学报 1988年第5期 49-55页

作者：秦仁依凤鸣王宏光哈尔滨工业大学涡轮机教研室哈尔滨工业大学涡轮机教研室

本文采用边界元法求解二维不可压粘性流动的Ω-ψ方程。通过适当的数学推导,导出了关于流函数ψ。涡量ω的边界积分方程,并把它们在区域边界上离散,求解。二维扩张管道的计算结果表明,这是一种较优越的求解二维粘性流动的方法。

关键词：粘性流动边界元法

The phenotypes and their prognosis of oral verrucous carcinoma

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中国口腔颌面外科杂志 2008年第B5期6卷 105-105页

作者： Zhanguan Tang ren qin wang Wu Zhu Sha Xiao Yue Hong wang Ming Wei Chen Department of Oral and Maxillofacial Surgery Xiangya HospitalCentral South Unive rsity Changs ha 410078China

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透平长叶片气动设计计算的变分有限元法

哈尔滨工业大学学报 1987年第1期 120-122页

作者：秦仁依凤鸣王宏光 Department of Power Engineering

In this paper a new finite element method is proposed and an aercdynamic design calculation for turbine stages with long blades is offered. The influences on aerodynamic parameters of blade thickness, blade force and other factors are taken into account in the calculation. The proposed method can be used in calculating the aerodynamic parameters inside a blade channel and therefore is valuable for practical engineering.

关键词： Fluids finite element mothod turbomachine.

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分光光度法测定蜜环菌菌粉中甘露醇的含量

食品科技 2011年第7期36卷 283-284,289页

作者：范书军朱显峰余晨晨秦仁炳王蕾河南大学生命科学学院生物工程研究所开封475004

目的:研究分光光度法测定蜜环菌菌粉中甘露醇的含量,建立一种准确、可行的含量测定方法。方法:采用超声波破碎法,以水为溶剂、260W、80℃下,对菌粉预处理,时间10min,以样品液与浓盐酸沸水共热方法去除果糖干扰,经高碘酸反应后,在413nm... 详细信息

目的:研究分光光度法测定蜜环菌菌粉中甘露醇的含量,建立一种准确、可行的含量测定方法。方法:采用超声波破碎法,以水为溶剂、260W、80℃下,对菌粉预处理,时间10min,以样品液与浓盐酸沸水共热方法去除果糖干扰,经高碘酸反应后,在413nm处采用分光光度计对待测样品液进行甘露醇含量测定。结果:在24h内,样品液中甘露醇含量稳定,待测样品液在反应结束后15min内呈色稳定性良好,本法平均回收率98.62%,回收率RSD1.50%。结论:分光光度法准确、方便、快捷,是测定蜜环菌菌粉中甘露醇含量的一种有效方法。

关键词：甘露醇蜜环菌分光光度法

Modeling of Strip Temperature in Rapid Cooling Section of Vertical Continuous Annealing Furnace

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Journal of Iron and Steel Research International 2012年第11期19卷 27-32页

作者： WAN Fei wang Yong-qin qin Shu-ren State Key Laboratory of Mechanical Transmission Chongqing UniversityChongqing 400044China Baosteel Engineering and Technologies Group Co Ltd Shanghai 201900China

The strip temperature is affected by many factors in rapid cooling section （RCS） of the vertical continuous annealing furnace （VCAF）. They can he divided into four types： the physical properties of cooling gas, the geometry characteristics of configuration of cooling equipment, the heat transfer between the strip and the cooling gas, and the conductivity of the strip. It aims to model the strip temperature in the cooling section based on the fundamental heat transfer theory and the four aspects factors. The model for transient Nusselt number is obtained by considering Reynolds number, Prandtl number and geometry characteristics of RCS. Then cooling model of the strip transient temperature is built by Nusselt number, heat transfer coefficient and heat conductivity of the strip. The results are compared with the data from production line. The comparisons indicate that the model can well predict cooling temperature of the strip. It is hoped that the proposed model can be used for design and control of the vertical continuous annealing furnace.

关键词： rapid cooling jet impinging convection heat transfer coefficient

Managing Quantum Heat Transfer in a Nonequilibrium Qubit-Phonon Hybrid System with Coherent Phonon States

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Chinese Physics Letters 2021年第1期38卷 10-18页

作者： Chen wang Lu-qin wang Jie ren Department of Physics Zhejiang Normal UniversityJinhua 321004China Center for Phononics and Thermal Energy Science China-EU Joint Center for NanophononicsShanghai Key Laboratory of Special Artificial Microstructure Materials and TechnologySchool of Physics Sciences and EngineeringTongji UniversityShanghai 200092China

We investigate quantum heat transfer in a nonequilibrium qubit-phonon hybrid open system,dissipated by external bosonic thermal *** applying coherent phonon states embedded in the dressed quantum master equation,we are capable of dealing with arbitrary qubit-phonon coupling *** is counterintuitively found that the effect of negative differential thermal conductance is absent at strong qubit-phonon hybridization,but becomes profound at weak qubit-phonon coupling *** underlying mechanism of decreasing heat flux by increasing the temperature bias relies on the unidirectional transitions from the up-spin displaced coherent phonon states to the down-spin counterparts,which seriously freezes the qubit and prevents the system from completing a thermodynamic ***,the effects of perfect thermal rectification and giant heat amplification are unraveled,thanks to the effect of negative differential thermal *** results of the nonequilibrium qubit-phonon open system would have potential implications in smart energy control and functional design of phononic hybrid quantum devices.

关键词： phonon quantum coherent

Modeling of Strip Heating Process in Vertical Continuous Annealing Furnace

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Journal of Iron and Steel Research International 2012年第5期19卷 29-36页

作者： WAN Fei wang Yong-qin qin Shu-ren The State Key Laboratory of Mechanical Transmission Chongqing UniversityChongqing 400044China

The mechanism for heat transfer of radiation is usually adopted to heat strip in vertical continuous annealing furnace. The rate of heat transfer among strip and other objects can be hugely affected by the parameters of strip speed, geometry factors and radiating characteristic of surfaces of strip, radiating tubes and walls of furnace. A model including all parameters is proposed for calculating the heat transfer coefficient, predicting the strip tempera- ture and boundary temperature of strip through analyzing these parameters. The boundary temperature is a important datum and different from average arithmetic value of temperature of strip and temperature in furnace. Also, the model can be used to analyze the relation for temperature of strip and heat transfer coefficient, total heat transfer quantity and heating time. The model is built by using the radiating heat transfer rate, the Newtonrs law of cooling, and lumped system analysis. The results of calculation are compared to the data from production line. The comparisons indicate that the model can well predict the heating process. The model is already applied for process control in pro- duction line. Also, this research will provide a new method for analyzing the radiation heat transfer.

关键词： vertical continuous annealing furnace (VCAF) radiation tube section (RTS) radiation heat transfer heat transfer coefficient heat transfer rate

Impact of counter-rotating-wave term on quantum heat transfer and phonon statistics in nonequilibrium qubit–phonon hybrid system

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Chinese Physics B 2021年第3期30卷 17-24页

作者： Chen wang Lu-qin wang Jie ren Department of Physics Zhejiang Normal UniversityJinhua 321004China Center for Phononics and Thermal Energy Science China-EU Joint Center for NanophononicsShanghai Key Laboratory of Special Artificial Microstructure Materials and TechnologySchool of Physics Science and EngineeringTongji UniversityShanghai 200092China

Counter-rotating-wave terms(CRWTs)are traditionally viewed to be crucial in open small quantum systems with strong system–bath *** by exemplifying in a nonequilibrium qubit–phonon hybrid model,we show that CRWTs can play the significant role in quantum heat transfer even with weak system–bath *** using extended coherent phonon states,we obtain the quantum master equation with heat exchange rates contributed by rotating-waveterms(RWTs)and CRWTs,*** find that including only RWTs,the steady state heat current and current fluctuations will be significantly suppressed at large temperature bias,whereas they are strongly enhanced by considering CRWTs in ***,for the phonon statistics,the average phonon number and two-phonon correlation are nearly insensitive to strong qubit–phonon hybridization with only RWTs,whereas they will be dramatically cooled down via the cooperative transitions based on CRWTs in ***,CRWTs in quantum heat transfer system should be treated carefully.

关键词： quantum transport open systems nonequilibrium and irreversible thermodynamics phonons or vibrational states in low-dimensional structures and nanoscale materials