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石油化工安全技术 2005年第2期21卷 22-24,i002页

作者：丁长胜中国石油锦州石化分公司 121001

现场施工用火管理引入QHSE先进管理理念,狠抓超前管理,提前做好现场用火风险源识别,并制定、落实好相应的削减措施,坚持“三个到位”检查,不但确保了现场施工用火安全,而且保证了施工进度。

关键词：锦州石化分公司现场施工用火管理 QHSE管理理念超前管理风险识别

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玻璃纤维直接纱丝束宽度影响因素分析

玻璃纤维 2023年第6期 22-24页

作者：李帅丁常胜薛艳卓翟涛黄莺莺泰山玻璃纤维邹城有限公司邹城273500

研究了玻璃纤维直接纱丝束宽度的影响因素,通过分类试验方法验证了不同因素对丝束宽度、集束性的影响。试验结果表明,通过调整拉丝张力、改变卷绕比、改造拉丝附件等措施可以改变丝束宽度,调整集束性。结合实际生产情况,创造性地研究出... 详细信息

研究了玻璃纤维直接纱丝束宽度的影响因素,通过分类试验方法验证了不同因素对丝束宽度、集束性的影响。试验结果表明,通过调整拉丝张力、改变卷绕比、改造拉丝附件等措施可以改变丝束宽度,调整集束性。结合实际生产情况,创造性地研究出一种有效增加丝束的宽度、降低丝束集束性的方法。使用此方法生产的产品更适于后续膨体加工工艺,提高了生产效率,降低了生产成本。同时,为优化膨体用玻纤纱加工工艺提出了一种新的思路。

关键词：玻璃纤维直接纱丝束宽度膨体集束性

可持续发展背景下落实国有林场森林资源保护的途径

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林业科技情报 2023年第2期55卷 89-91页

作者：丁昌盛河池市庆远林场广西河池546300

国有林场的森林资源作为我国森林资源可持续发展的核心,其资源保护工作实效性的取得具有重要的现实意义。该研究在对国有林场森林资源情况进行总结的基础上,分析国有林场森林资源保护工作的现状,并在可持续发展背景下,提出国有林场森林... 详细信息

国有林场的森林资源作为我国森林资源可持续发展的核心,其资源保护工作实效性的取得具有重要的现实意义。该研究在对国有林场森林资源情况进行总结的基础上,分析国有林场森林资源保护工作的现状,并在可持续发展背景下,提出国有林场森林资源保护的有效途径,旨在为国有林场森林资源保护工作提供一定的指导意义。

关键词：可持续发展国有林场森林资源保护途径

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颗粒级配对重结晶SiC蜂窝陶瓷显微结构与力学性能的影响

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耐火材料 2024年第2期58卷 127-131页

作者：闵昌胜董博余超邓承继邢广超丁军刘浩祝洪喜武汉科技大学省部共建耐火材料与冶金国家重点实验室湖北武汉430081

以不同粒径(0.5、25、38和45μm)α-SiC粉末为原料,采用重结晶烧结工艺制备碳化硅蜂窝陶瓷,探究了颗粒级配对重结晶碳化硅(R-SiC)显微形貌、孔径分布及物理性能的影响。结果表明:1)经2200℃保温1 h烧成后,与仅添加25、0.5μm双粒径颗粒... 详细信息

以不同粒径(0.5、25、38和45μm)α-SiC粉末为原料,采用重结晶烧结工艺制备碳化硅蜂窝陶瓷,探究了颗粒级配对重结晶碳化硅(R-SiC)显微形貌、孔径分布及物理性能的影响。结果表明:1)经2200℃保温1 h烧成后,与仅添加25、0.5μm双粒径颗粒级配相比,随着38和45μm粒径α-SiC的逐步引入,R-SiC蜂窝陶瓷的烧结致密度无明显变化,但R-SiC粗颗粒间的平均烧结颈面积增大,中位孔径提高且孔径分布更为集中。2)当α-SiC原料的颗粒级配为25、0.5、38μm三种粒径时,R-SiC蜂窝陶瓷力学性能达到最优,其常温抗压强度、体积密度、显气孔率分别为18.0 MPa、1.81 g·cm^(-3)、40.8%。

关键词：重结晶碳化硅蜂窝陶瓷烧结颈气孔特性力学性能

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Wheel Setting Error Modeling and Compensation for Arc Envelope Grinding of Large-Aperture Aspherical Optics

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Chinese Journal of Mechanical Engineering 2022年第5期35卷 87-99页

作者： changsheng Li Lin Sun Zhaoxiang Chen Jianfang Chen Qijing Lin Jianjun ding Zhuangde Jiang State Key Laboratory for Manufacturing Systems Engineering Xi’an Jiaotong UniversityXi’an 710049China School of Mechanical Engineering Xi’an Jiaotong UniversityXi’an 710049China Shaanxi Qinchuan Precision CNC Machine Tool Engineering Research Co Xi’an 710018China

Precision grinding is a key process for realizing the use of large-aperture aspherical optical elements in laser nuclear fusion devices,large-aperture astronomical telescopes,and high-resolution space *** this study,the arc envelope grinding process of large-aperture aspherical optics is investigated using a CM1500 precision grinding machine with a maximum machinable diameter ofΦ1500 *** form error of the aspherical workpiece induced by wheel setting errors is analytically modeled for both parallel and cross *** show that the form error is more sensitive to the wheel setting error along the feed direction than that along the lateral *** is a bilinear function of the feed-direction wheel setting error and the distance to the optical *** on the error function above,a method to determine the wheel setting error is ***,grinding tests are performed with the wheels aligned *** a newly proposed partial error compensation method with an appropriate compensation factor,a form error of 3.4μm peak-to-valley(PV)for aΦ400 mm elliptical K9 glass surface is achieved.

关键词： Aspherical optics Wheel setting Arc envelope grinding Form error Large aperture

瑞马唑仑和丙泊酚用于宫腔镜检查术镇静效应的相互作用

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中华麻醉学杂志 2024年第2期44卷 204-208页

作者：姬乐婷郝佩佩丁宁杜宁宁朱广超李长生魏晓永郑州大学第三附属医院麻醉科郑州450052

目的评价瑞马唑仑和丙泊酚用于宫腔镜检查术镇静效应的相互作用。方法拟行宫腔镜检查术患者,年龄20~45岁,BMI 18~28 kg/m^(2),ASA分级Ⅰ或Ⅱ级,试验分两步进行,用序贯法确定A组(瑞马唑仑)和B组(丙泊酚)的半数有效剂量(ED_(50));以A组和... 详细信息

目的评价瑞马唑仑和丙泊酚用于宫腔镜检查术镇静效应的相互作用。方法拟行宫腔镜检查术患者,年龄20~45岁,BMI 18~28 kg/m^(2),ASA分级Ⅰ或Ⅱ级,试验分两步进行,用序贯法确定A组(瑞马唑仑)和B组(丙泊酚)的半数有效剂量(ED_(50));以A组和B组获得的ED_(50)为标准确定C组(0.25×瑞马唑仑ED_(50)+0.75×丙泊酚ED_(50)为起始剂量)、D组(0.5×瑞马唑仑ED_(50)+0.5×丙泊酚ED_(50)为起始剂量)和E组(0.75×瑞马唑仑ED_(50)+0.25×丙泊酚ED_(50)为起始剂量)复合用药方案,用序贯法确定C组、D组和E组丙泊酚和瑞马唑仑复合用药时丙泊酚的ED_(50)。采用等辐射分析法分析两药镇静效应的相互作用,计算相互作用系数及两者协同作用剂量配比。结果 A组瑞马唑仑ED_(50)为0.180 mg/kg,B组丙泊酚ED_(50)为1.167 mg/kg,等辐射分析结果显示,瑞马唑仑和丙泊酚具有协同作用,当瑞马唑仑0.045、0.090、0.135 mg/kg与丙泊酚0.546、0.288、0.160 mg/kg复合使用时,相互作用系数分别为:1.393、1.339、1.127,瑞马唑仑和丙泊酚协同作用剂量配比为1.0∶(3.2~12.0)。结论瑞马唑仑和丙泊酚用于宫腔镜检查术的镇静效应具有协同作用,剂量配比为1.0∶(3.2~12.0)。

关键词：苯二氮类二异丙酚宫腔镜检查催眠药和镇静药药物相互作用

Pressure and flowrate distribution in central exhaust shaft with multiple randomly operating range hoods

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Building Simulation 2022年第1期15卷 149-165页

作者： Lingjie Zeng Leqi Tong Jun Gao Bowen Du Chengquan Zhang Lipeng Lv changsheng Cao Xihui ding College of Environmental Science and Engineering Tongji UniversityShanghai 200092China School of Mechanical Engineering Tongji UniversityShanghai 200092China Department of civil and mineral engineering University of TorontoTorontoCanada

Central flues are now commonly adopted in high-rise residential buildings in China for cooking oil fumes(COF)*** hoods of all floors are connected to the central shaft,where oil fumes were gathered and exhausted through the outlet at the building *** households may cook and use their range hood at random periods,there is great uncertainty of the amount of COF being *** addition,users can often adjust the exhaust rate of the range hood according to their *** a result,thousands of possible operating conditions consisting of distinct combinations of on/off conditions and fan speed occur randomly in the central COF exhaust system,causing the exhaust performance to vary considerably from condition to *** work developed a mathematical model for characterizing the operation of the central COF exhaust system in a high-rise residential building as well as its iterative solving ***-scale tests coupled with CFD simulation referring to a real 30-floor building were conducted to validate the proposed *** results show that the model agreed well with the CFD and experimental data under various system operating ***,the Monte-Carlo method was introduced to simulate the random operating characteristics of the system,and a hundred thousand cases corresponding to distinct system operating conditions were sampled and statistically analyzed.

关键词： central exhaust shaft building ventilation range hood high-rise residential building randomly operating Monte-Carlo simulation

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基于PXA27x的摄像头系统的设计与实现

南京师范大学学报（工程技术版） 2010年第4期10卷 80-83页

作者：丁昌圣吴宁葛芬张颖南京航空航天大学信息科学与技术学院江苏南京210016

在基于XScale架构的处理器PXA27x及Windows CE操作系统平台上,分析了Quick Capture接口的结构及显示原理,并给出了摄像头的硬件电路设计.采用Windows CE流接口驱动模型,讨论了驱动程序的框架和摄像头的工作状态划分,并详细介绍了DMA中... 详细信息

在基于XScale架构的处理器PXA27x及Windows CE操作系统平台上,分析了Quick Capture接口的结构及显示原理,并给出了摄像头的硬件电路设计.采用Windows CE流接口驱动模型,讨论了驱动程序的框架和摄像头的工作状态划分,并详细介绍了DMA中断采集图像的实现原理.采集的图像帧连续显示在LCD控制器的OverLay窗口上,完成实时预览.经过验证,系统可以正常采集、传输和显示图像.

关键词： PXA27x 摄像头系统硬件电路设计 Based Realization Windows 显示图像 XScale架构 LCD控制器状态划分显示原理驱动模型驱动程序连续显示流接口图像帧处理器验证讨论

A Broad Range Triboelectric Stiffness Sensor for Variable Inclusions Recognition

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Nano-Micro Letters 2023年第12期15卷 298-309页

作者： Ziyi Zhao Zhentan Quan Huaze Tang Qinghao Xu Hongfa Zhao Zihan Wang Ziwu Song Shoujie Li Ishara Dharmasena changsheng Wu Wenbo ding Tsinghua‑Berkeley Shenzhen Institute Institute of Data and InformationShenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055People’s Republic of China Institute of Ocean Engineering Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055People’s Republic of China Wolfson School of Mechanical Electrical and Manufacturing Engineering Loughborough UniversityLoughborough LE113TUUK Department of Materials Science and Engineering National University of SingaporeSingapore 117575Singapore RISC-V International Open Source Laboratory 518055 ShenzhenPeople’s Republic of China

With the development of artificial intelligence,stiffness sensors are extensively utilized in various fields,and their integration with robots for automated palpation has gained significant *** study presents a broad range self-powered stiffness sensor based on the triboelectric nanogenerator(Stiff-TENG)for variable inclusions in soft objects *** Stiff-TENG employs a stacked structure comprising an indium tin oxide film,an elastic sponge,a fluorinated ethylene propylene film with a conductive ink electrode,and two acrylic pieces with a shielding *** the decoupling method,the Stiff-TENG achieves stiffness detection of objects within 1.0 *** output performance and characteristics of the TENG for different stiffness objects under 4 mm displacement are *** Stiff-TENG is successfully used to detect the heterogeneous stiffness structures,enabling effective recognition of variable inclusions in soft object,reaching a recognition accuracy of 99.7%.Furthermore,its adaptability makes it well-suited for the detection of pathological conditions within the human body,as pathological tissues often exhibit changes in the stiffness of internal *** research highlights the innovative applications of TENG and thereby showcases its immense potential in healthcare applications such as palpation which assesses pathological conditions based on organ stiffness.

关键词： Stiffness sensor Decoupling method Heterogeneous stiffness Variable inclusions Healthcare applications

浅谈新建高压瓦斯脱硫在企业节能减排中的作用

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石油化工安全环保技术 2009年第2期25卷 7-8页

作者：李波王英伟丁长胜中国石油锦州石化公司辽宁锦州121001

新建160kt/a高压瓦斯脱硫装置是公司"十一五"期间的重要节能环保项目,论述了该装置的工艺流程、主要技术特点、运行效果及效益分析,并对进一步发挥该装置潜能,实现全厂炉用瓦斯进一步净化,规避新硫磺低负荷运行的风险提出了建议。

关键词：高压瓦斯脱硫效益