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《AutoCAD》课程混合式教学模式的探索与应用

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内蒙古石油化工 2024年第1期50卷 72-75页

作者：姜丽艳张晓蕾内蒙古化工职业学院化学工程系内蒙古呼和浩特010010

绘制化工图样是应用化工及相关专业必备的专业技能,二维平面绘图软件AutoCAD计算机辅助绘图是目前从事工程设计人员必须要掌握的技能,为了完成人才培养目标,课题组对《AutoCAD》课程混合式教学模式进行了设计,并实施到应用化工19各班,... 详细信息

绘制化工图样是应用化工及相关专业必备的专业技能,二维平面绘图软件AutoCAD计算机辅助绘图是目前从事工程设计人员必须要掌握的技能,为了完成人才培养目标,课题组对《AutoCAD》课程混合式教学模式进行了设计,并实施到应用化工19各班,探索出教学效果优良的教学设计,取得了良好的教学效果。

关键词： AutoCAD 混合式教学教学资源网络平台

TH1、TH17及其细胞因子与结核性胸膜炎患者治疗效果的相关性分析

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分子诊断与治疗杂志 2024年第4期16卷 730-733,738页

作者：白峰张小雷李倩倩河北省胸科医院/河北省肺病重点实验室胸外一科河北石家庄050041 河北省第八人民医院感染性疾病科河北石家庄050000 河北省第八人民医院老年病科河北石家庄050000

目的分析辅助性T淋巴细胞1(TH1)、辅助性T淋巴细胞17(TH17)及其细胞因子与结核性胸膜炎患者治疗效果的相关性。方法选取2019年1月至2022年5月河北省胸科医院收治的108例结核性胸膜炎患者为研究对象,均给予2HRZE/10HRE治疗,根据治疗效果... 详细信息

目的分析辅助性T淋巴细胞1(TH1)、辅助性T淋巴细胞17(TH17)及其细胞因子与结核性胸膜炎患者治疗效果的相关性。方法选取2019年1月至2022年5月河北省胸科医院收治的108例结核性胸膜炎患者为研究对象,均给予2HRZE/10HRE治疗,根据治疗效果将患者分为有效组(n=78)与无效组(n=30)。比较两组胸腔积液的TH1、TH17、TH1细胞因子[肿瘤坏死因子-α(TNF-α)、干扰素-γ(IFN-γ)]及TH17细胞因子[白细胞介素17(IL-17)]水平;采用多因素logistics回归分析胸腔积液TH1、TH17、TNF-α、IFN-γ、IL-17与结核性胸膜炎患者治疗效果的关系;绘制ROC曲线分析胸腔积液TH1、TH17、TNF-α、IFN-γ、IL-17水平对结核性胸膜炎患者治疗效果的预测价值。结果无效组胸腔积液的TH1、TH17、TNF-α、IFN-γ、IL-17水平均高于有效组,差异均具有统计学意义(t=6.461、5.688、6.726、5.891、7.148,均P<0.05);多因素logistics回归分析显示,TH1、TH17、TNF-α、IFN-γ、IL-17水平升高均是结核性胸膜炎患者治疗效果的独立危险因素(P<0.05);ROC曲线分析显示,胸腔积液TH1、TH17、TNF-α、IFN-γ、IL-17的ROC曲线下面积分别为0.836、0.793、0.836、0.817、0.856(P<0.05)。结论结核性胸膜炎患者治疗效果可能与胸腔积液TH1、TH17及其细胞因子水平相关。

关键词：结核性胸膜炎辅助性T淋巴细胞1 辅助性T淋巴细胞17 细胞因子

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X射线密度测井屏蔽体的蒙特卡罗模拟研究

核技术 2024年第8期47卷 8-14页

作者：刘睿于华伟祝倩岳爱忠王虎刘超卓张倩文杨树祝林苛张晓蕾中国石油大学(华东)深层油气全国重点实验室青岛266580 中国石油大学(华东)地球科学与技术学院青岛266580 中国石油集团测井有限公司测井技术研究院西安710077 中国石油大学(华东)理学院青岛266580

密度测井中使用可控X射线源替代137Cs放射源已经成为新的趋势。X射线源强度受靶基上高压影响较大,当高压为350 kV时,密度测量不确定度可以保持在0.01 g·cm-3。为探究适用于350 kV高压X射线密度测井仪器的屏蔽体材料及厚度等参数,利用... 详细信息

密度测井中使用可控X射线源替代137Cs放射源已经成为新的趋势。X射线源强度受靶基上高压影响较大,当高压为350 kV时,密度测量不确定度可以保持在0.01 g·cm-3。为探究适用于350 kV高压X射线密度测井仪器的屏蔽体材料及厚度等参数,利用蒙特卡罗方法研究了X射线穿过不同材料与厚度后的能谱及计数率;并且通过对0~0.15 MeV、0.15~0.35 MeV两个能窗相关响应关系的对比,分析了不同能窗中X射线衰减与探测器计数率差异的原因。另外结合四探测器X射线密度测井仪器实际结构,主要考虑了三部分粒子对探测器的影响,并通过MCNP模拟分析并设计了各部分屏蔽体的放置方式及最佳厚度。研究表明:X射线的衰减无论在高能窗还是低能窗,都随着屏蔽材料原子序数及厚度而增大。选择钨镍铁合金为四探测器X射线密度测井仪器模型的屏蔽材料;在基座与近源距探测器之间设置的屏蔽体厚度为1.75 cm,每个探测器之间放置厚度为0.2 cm的屏蔽体,探测器背部增加0.35 cm厚度的屏蔽体。本研究为X射线密度测井仪研制中的屏蔽材料和结构提供了设计理论和关键参数。

关键词：可控源 X射线密度测井蒙特卡罗模拟屏蔽体

Urban Water Resource Utilization Efficiency in China

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Chinese Geographical Science 2015年第6期25卷 684-697页

作者： SHI Tiange zhang xiaolei DU Hongru SHI Hui Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences University of Chinese Academy of Sciences

The efficient use of water resources directly affects environmental, social, and economic development; therefore, it has a significant impact on urban populations. A slacks-based measure for data envelopment analysis （SBM-DEA） has been widely used in energy efficiency and environmental efficiency analyses in recent years. Based on this model, data from 316 cities were examined and a category method was employed involving three different sorting techniques to empirically evaluate the efficiency of urban water re- source utilization in China between 2000 and 2012. The overall efficiency （OE） of urban water resource utilization in China was initially low, but has improved over the past decade. The scale efficiency （SE） was higher than the pure technological efficiency （PTE）; PTE is a major determining factor of OE, and has had an increasingly significant effect. The efficiency of water resource utilization varied ac- cording to the region, urban scale, and economic function. The OE score for the eastern China was higher than for the rest of the region, and the OE score for the western China was higher than for the central China. The OE score for urban water resource utilization has improved with urban expansion, except in the case of small cities. The SE showed an inverted U-shaped＇ trend with increasing urban expansion. The OE of urban water utilization in comprehensive functional cities was greater than in economic specialization cities, and was greater in heavy industry specialization cities than in other specialization cities. This study contributes to the field of urban water resource management by examining variations in efficiency with urban ~ezle

关键词： urban water resource utilization efficiency urban scale undesirable outputs a slacks-based measure for data envelopmentanalysis (SBM-DEA) China

Decomposition of energy-related carbon emissions in Xinjiang and relative mitigation policy recommendations

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Frontiers of Earth Science 2015年第1期9卷 65-76页

作者： Changjian WANG xiaolei zhang Fei WANG Jun LEI Li zhang State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China University of Chinese Academy of Sciences Beijing 100049 China Fujian Urban & Rural Planning Design Institute Fuzhou 350003 China

Regional carbon emissions research is necessary and helpful for China in realizing reduction targets. The LMDI I （Logarithmic Mean Divisia Index I） technique based on an extended Kaya identity was conducted to uncover the main five driving forces for energy-related carbon emissions in Xinjiang, an important energy base in China. Decomposition results show that the affluence effect and the population effect are the two most important contributors to increased carbon emissions. The energy intensity effect had a positive influence on carbon emissions during the pre-reform period, and then became the dominant factor in curbing carbon emissions after 1978. The renewable energy penetration effect and the emission coefficient effect showed important negative but relatively minor effects on carbon emissions. Based on the local realities, a comprehensive suite of mitigation policies are raised by considering all of these influencing factors. Mitigation policies will need to significantly reduce energy intensity and pay more attention to the regional economic development path. Fossil fuel substitution should be considered seriously. Renewable energy should be increased in the energy mix. All of these policy recommendations, if implemented by the central and local government, should make great contributions to energy saving and emission reduction in Xinjiang.

关键词： carbon emissions Xinjiang index decomposition analysis mitigation policy recommendations

Co-adaptation between modern oasis urbanization and water resources exploitation:A case of Urumqi

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Chinese Science Bulletin 2006年第A1期51卷 189-195页

作者： DU Hongru zhang xiaolei WANG Bin Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China Institute of Geography Science and Natural Resources Chinese Academy of Sciences Beijing 100101 China

水资源利用在在干旱地区的整个绿洲都市化期间总是是很重要的，与在矛盾和协作之间的城市的开发适应。作为一个盒子，水利用的合作改编和城市的生长拿 Urumqi 城市被在水供应和绿洲城市之间的相互作用模仿“ s 阐述人口，经济和环境。... 详细信息

水资源利用在在干旱地区的整个绿洲都市化期间总是是很重要的，与在矛盾和协作之间的城市的开发适应。作为一个盒子，水利用的合作改编和城市的生长拿 Urumqi 城市被在水供应和绿洲城市之间的相互作用模仿“ s 阐述人口，经济和环境。在不同都市化阶段，合作改编能不同地被代表，它能被五个阶段总结：基本协作，膨胀协作，膨胀矛盾，适应矛盾，和适应协作。水消费的费用，水使用和效率的比例是主要影响因素帮助合作改编。

关键词：绿洲城市水资源开发互相适应案例研究新疆

Some Remarks on Locally Almost Perfect Domains

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Journal of Mathematical Research with Applications 2023年第1期43卷 40-48页

作者： xiaolei zhang School of Mathematics and Statistics Shandong University of Technology

An integral domain R is called a locally almost perfect domain provided that Rm is an almost perfect domain for any maximal ideal m of R. In this paper, we give several characterizations of locally almost perfect domains in terms of locally perfect rings, almost projective modules, weak-injective modules, almost strongly flat modules and strongly Matlis cotorsion modules.

关键词： locally almost perfect domain almost projective module almost strongly flat module strongly Matlis cotorsion module

A Coastal Zone Segmentation Variational Model and Its Accelerated ADMM Method

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Journal of Ocean University of China 2017年第6期16卷 1081-1089页

作者： HUANG Baoxiang CHEN Ge zhang xiaolei YANG Huan College of Computer Science and Technology Postdoctoral stations of system scienceQingdao University College of Information Science and Engineering Ocean University of China

Effective and efficient SAR image segmentation has a significant role in coastal zone interpretation. In this paper, a coastal zone segmentation model is proposed based on Potts model. By introducing edge self-adaption parameter and modifying noisy data term, the proposed variational model provides a good solution for the coastal zone SAR image with common characteristics of inherent speckle noise and complicated geometrical details. However, the proposed model is difficult to solve due to to its nonlinear, non-convex and non-smooth characteristics. Followed by curve evolution theory and operator splitting method, the minimization problem is reformulated as a constrained minimization problem. A fast alternating minimization iterative scheme is designed to implement coastal zone segmentation. Finally, various two-stage and multiphase experimental results illustrate the advantage of the proposed segmentation model, and indicate the high computation efficiency of designed numerical approximation algorithm.

关键词： coastal zone segmentation variational Potts model alternating direction method with multipliers edge self-adaption

Oasis System and Its Reasonable Development in Sangong River Watershed in North of the Tianshan Mountains,Xinjiang,China

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Chinese Geographical Science 2006年第3期16卷 236-242页

作者： LEI Jun LUO Geping zhang xiaolei LU Qi Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China Graduate University of Chinese Academy of Sciences Beijing 100049 China

Under the guide of system theory, taking the oasis in the Sangong River watershed as a case study, this paper analyzes the oasis structure and function from 4 aspects including oasis spatial structure, water resources structure, vegetation structure, economic structure and their corresponding functions. The results indicate that as a typical small-scale watershed, Sangong River watershed has the relatively complete mountain-basin structure, and ecological and productive function. Because of human drastic activity the utilization rate of water resources was as high as 98.7%, and the utilization of groundwater was not reasonable, which resulted in an average annual decline of 0.353m in the water table of alluvial-diluvial-fan oasis, and an average annual increase of 0.047m in the alluvial-plain. The layout of crop and shelter forest benefits to the utilization of water and land resources. The development of oasis economy is at low level, and its eco-economic function is weak.

关键词： oasis structure oasis function oasis economy Sangong River watershed