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鞍钢高炉低镁渣冶炼技术研究与应用

钢铁 2018年第3期53卷 22-26页

作者：刘杰赵东明李建军周明顺张辉徐礼兵鞍钢集团钢铁研究院辽宁鞍山114009 鞍钢股份有限公司炼铁总厂辽宁鞍山114021

为提高高炉技术经济指标,通过实验室和工业试验,对鞍钢高炉低镁渣的冶炼特性进行了全面研究和评价。研究结果表明,在鞍钢目前的低铝负荷下,炉渣中MgO质量分数为4%-7%时,炉渣熔化温度均小于1 350℃;炉渣温度小于1 500℃时,理论上MgO质量... 详细信息

为提高高炉技术经济指标,通过实验室和工业试验,对鞍钢高炉低镁渣的冶炼特性进行了全面研究和评价。研究结果表明,在鞍钢目前的低铝负荷下,炉渣中MgO质量分数为4%-7%时,炉渣熔化温度均小于1 350℃;炉渣温度小于1 500℃时,理论上MgO质量分数不小于3%时,就可满足黏度的要求,最佳的碱度为1.245左右;工业生产条件下,炉渣的MgO质量分数一般控制在4.5%-5.0%,炉渣黏度为0.16-0.20 Pa·s时,通过优化炉渣碱度,降低炉渣中的MgO质量分数,不会降低炉渣的脱硫能力。通过采取低镁渣冶炼技术,有效降低了鞍钢高炉的生产成本,渣比下降了近17 kg/t（Fe）,有助于高炉绿色可持续化发展。

关键词：高炉渣炉渣黏度氧化镁质量分数渣比冶炼特性

Production characteristics and displacement mechanisms of infilling polymer-surfactant-preformed particle gel flooding in post-polymer flooding reservoirs:A review of practice in Ng3 block of Gudao Oilfield

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Petroleum Science 2023年第4期20卷 2354-2371页

作者： Zhi-Bin An Kang zhou De-jun Wu jian Hou Key Laboratory of Unconventional Oil&Gas Development(China University of Petroleum(East China)) Ministry of EducationQingdao266580ShandongPR China College of Energy and Mining Engineering Shandong University of Science and TechnologyQingdao266590ShandongPR China School of Petroleum Engineering China University of Petroleum(East China)Qingdao266580ShandongPR China

The pilot test of infilling polymer-surfactant-preformed particle gel(PPG)flooding has been successfully implemented after polymer flooding in Ng3 block of Gudao Oilfield in ***,the production characteristics and displacement mechanisms are still unclear,which restricts its further popularization and *** at this problem,this paper firstly analyzes the production performance of the pilot test and proposed four response types according to the change of water cut curves,including W-type,U-type,V-type response,and no ***,the underlying reasons of these four types are analyzed from the aspects of seepage resistance and sweep *** overall sweep efficiency of gradual-rising W-type,gradual-decreasing W-type,and early V-type response increases from 0.81 to 0.93,0.55 to 0.89,and 0.94 to 1,*** the sum of seepage resistance along the connection line between production well and injection well for U-type and delayed V-type response increases from 0.0994 to 0.2425,and 0.0677 to 0.1654,***,the remaining oil distribution after polymer flooding is summarized into four types on the basis of production and geological characteristics,namely disconnected remaining oil,streamline unswept remaining oil,rhythm remaining oil,and interlayer-controlled remaining ***,the main displacement mechanisms for each type are clarified based on the dimensionless seepage resistance and water absorption ***,improving connectivity by well pattern infilling is the most important for producing disconnected remaining *** synergistic effect of well pattern infilling and polymer-surfactant-PPG flooding increases the dimensionless seepage resistance of water channeling regions and forces the subsequent injected water to turn to regions with streamline unswept remaining *** improvement of the water absorption profile by polymer-surfactant-PPG flooding and separated layer water injection contributes to

关键词： Infilling polymer-surfactant-PPG flooding Production characteristics Displacement mechanisms Dimensionless seepage resistance Water absorption profile

Study of thermal decoherence of harmonic oscillators

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原子与分子物理学报 2025年第5期42卷 108-114页

作者： LI jian zhou Gao-Liang YAN Zheng-Xin LIU Wei WANG Zhao-Qi College of Science Xi’an University of Science and TechnologyXi’an 710054China

The thermal decoherence of harmonic oscillators is investigated *** quantum system presented here is a one-dimensional oscillator with angular frequency,which is surrounded by a thermal bath of environmental *** are various environmental oscillators with different angular frequency(below an ultraviolet cutoff).At the beginning,the quantum system is a pure state and the environmental oscillators are in thermodynamic equilibrium with *** a period,the system-environment interactions inspire significant decoherence of the quantum *** decoherence is displayed by explicit calculations of the purity and von Neumann entropy of the quantum *** is worth noting that the decoherence could be significant even in the weak coupling and low temperature case due to the large amount of environmental degrees of *** the decoherence process is inspired between the quantum system and an ordinary thermal environment here,the thermal decoherence result is quite general.

关键词： Quantum decoherence Grand canonical ensemble Oscillators

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肌力定量检查方法研究进展

中国康复理论与实践 2017年第7期23卷 766-769页

作者：刘根林李建军周红俊康海琼郑樱郝春霞张缨卫波逯晓蕾袁媛首都医科大学康复医学院北京市100068 中国康复研究中心北京博爱医院北京市100068

由于徒手肌力检查不能定量反映肌力增强的训练效果,人们越来越多地开始应用等速仪器和手持测力计等工具进行肌力定量检查。本文简要回顾了临床常用肌力检查方法的发展历程,对各种肌力定量检查方法的优缺点进行了比较分析,在此基础上提... 详细信息

由于徒手肌力检查不能定量反映肌力增强的训练效果,人们越来越多地开始应用等速仪器和手持测力计等工具进行肌力定量检查。本文简要回顾了临床常用肌力检查方法的发展历程,对各种肌力定量检查方法的优缺点进行了比较分析,在此基础上提出了临床肌力检查的具体操作建议。

关键词：肌力定量检查等速仪器手持测力计测试康复综述

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杆状病毒杀虫剂增效途径研究进展

山东农业大学学报（自然科学版） 2004年第1期35卷 154-158页

作者：张建军周成刚郭光智张乐民山东农业大学植保学院山东泰安271018 潍坊市林业局山东潍坊261041 诸城市朱解镇林果站山东潍坊260000

杆状病毒作为杀虫剂应用已成为生物防治中不可缺少的环节。但杆状病毒相对低的毒力和较长的杀虫时间是制约其推广应用的原因之一。本文就如何提高杆状病毒的杀虫效果 ,从基因重组、增效蛋白及化学增效剂三个方面 ,对近年来的相关研究进... 详细信息

杆状病毒作为杀虫剂应用已成为生物防治中不可缺少的环节。但杆状病毒相对低的毒力和较长的杀虫时间是制约其推广应用的原因之一。本文就如何提高杆状病毒的杀虫效果 ,从基因重组、增效蛋白及化学增效剂三个方面 ,对近年来的相关研究进行了概括 ,并对三种增效途径在研究和应用中存在和面临的问题提出了解决对策。

关键词：杆状病毒杀虫剂生物防治基因重组增效蛋白化学增效剂

Temperature-Dependent SRS Behavior of 316L and Its Constitutive Model

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Acta Metallurgica Sinica(English Letters) 2018年第3期31卷 234-244页

作者： jian Peng jian Peng Kai-Shang Li jun-Feng Pei Chang-Yu zhou School of Mechanical Engineering Changzhou UniversityChangzhou 213164 China jiangsu Key Laboratory of Green Process Equipment Changzhou University Changzhou 213164 China School of Mechanical and Power Engineering Nanjing TechUniversity Nanjing 210009 China

The strain rate sensitivity（SRS）and temperature sensitivity（TS）of 316L austenitic stainless steel were investigated by constant strain rate test（CSRT）and strain rate jump test（SRJT）under four temperatures（293,373,473 and 573 K）and four strain rates（5 ×10^-4/s,1 × 10^-3/s,5 × 10^-3/s and 1 × 10^-2/s）.The results show that temperature sensitivity（TS）indexes at different strain rates are coincidence to be negative,related to temperature *** the contrary,SRS indexes change from positive to negative with the increase in temperature associated with dynamic strain aging（DSA）.Moreover,based on the comparison between CSRT and SRJT,SRS and TS indexes obtained by two methods agree *** proves that the SRJT can describe the SRS and TS phenomenon of 316L ***,the effects of tem-perature and strain rate on fracture mechanism were *** last,an improved Johnson-Cook model was proposed to consider the temperature-dependent SRS behavior of 316L.

关键词： Strain rate sensitivity Strain rate jump test Improved Johnson-Cook model

Novel residual pollution layer model related to the arc propagation along the surface based on discretisation

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High Voltage 2021年第1期6卷 25-33页

作者： jian Li jun zhou Zhicheng Guan Liming Wang NARI Group Corporation Ltd. NanjingChina Wuhan NARI Limited Liability Company State Grid Electric Power Research InstituteWuhanChina China Electric Power Research Institute BeijingChina Tsinghua University Graduate School at Shenzhen Guangdong ProvinceChina

A concentrated treatment used on the residual pollution layer in the Obennaus and its improved models is inappropriate for establishing the propagation model of an arc along the pollution layer surface. Therefore, discretising the residual pollution layer is innovatively proposed. The residual pollution layer is discretised into several infinitesimal pollution layer elements with various characteristics along the vertical direction from the arc root to the ground electrode. Quantitative relationships between the surface conductivity of a pollution layer element and several variables, including salt deposit density, water film thickness, temperature, and time, are concluded based on experimental data and relevant theories. A distribution factor that determines leakage current densities in a pollution layer is defined. A residual pollution layer surface resistance model based on the discretisation, relational ex-pressions, and distribution factor is established. A comparison of the proposed model with the results observed in the experiments with and without a partial arc shows that the pro-posed model is reasonable.

关键词： residual layer propagation

THE STUDY ON A KIND OF CONTROL SYSTEM WITH NONLINEAR PARABOLIC DISTRIBUTED PARAMETERS

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Applied Mathematics and Mechanics(English Edition) 2002年第2期23卷 178-186页

作者： zhou jian-jun(周建军) XU Yan-hou(徐燕侯) State Key Laboratory of Fire Science University of Science and Technology of ChinaHefei230026 P R China Department of Mechanic Engineering University of Science and Technology of China Hefei230026 P R China

The modelling of one kind of nonlinear parabolic distributed parameter control system with moving boundary, which had extensive applications was presented, Two methods were used to investigate the basic characteristics of the system: I) transforming the system it? the variable domain into that in the fixed domain; 2) transforming the distributed parameter system into the lumped parameter system. It is found that there are two critical values for the control variable : the larger one determines whether or not the boundary would move, while the smaller one determines whether or not the boundary, would atop automatically. For one-dimensional system of planar, cylindrical and spherical cases the definite solution problem can be expressed as a unified form. By means of the computer simulation the open-loop control system and close-cycle feedback control system have been investigated. Numerical results agree well with theoretical results. The computer simulation shows that the system is well posed, stable, measurable and controllable.

关键词： distributed parameter control system nonlinear moving boundary stability measurability controllability

Boundary Correlation Functions of the gl(1|1) Supersymmetric Vertex Model

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Communications in Theoretical Physics 2008年第7期50卷 17-22页

作者： ZHANG Chen-jun zhou jian-Hua YUE Rui-Hong Institute of Modern Physics Northwest University Xi＇an 710069 China

The gl（1/1） supersymmetric vertex model with domain wall boundary conditions （DWBC） on an N × N square lattice is considered. We derive the reduction formulae for the one-point boundary correlation functions of t... 详细信息

关键词： domain wall boundary conditions partition function boundary correlation function