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孤岛工作面回采巷道锚索托盘失效分析

煤矿安全 2016年第11期47卷 204-207页

作者：刘宏旺大同煤矿集团有限责任公司忻州窑矿山西大同037021

针对孤岛区域回采巷道中锚索托盘失效现象,利用实验机对托盘进行同心和偏心载荷受力模拟,对托盘强度进行评估,分析托盘破坏变形原因。研究表明,锁具和托盘同心压缩时,托盘强度为350.3 k N,锁具和托盘偏心压缩时,托盘强度为283 k N,均满... 详细信息

针对孤岛区域回采巷道中锚索托盘失效现象,利用实验机对托盘进行同心和偏心载荷受力模拟,对托盘强度进行评估,分析托盘破坏变形原因。研究表明,锁具和托盘同心压缩时,托盘强度为350.3 k N,锁具和托盘偏心压缩时,托盘强度为283 k N,均满足支护设计要求。受孤岛开采和断层破碎带的影响,托盘失效位置应力增大,应力集中系数高达3.33,在偏心状态下更容易发生脱落。根据以上研究成果,提出合理的防托盘失效措施,为巷道的安全提供保障。

关键词：托盘失效压缩破坏孤岛开采数值模拟断层破碎带

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坚硬顶板工作面初次来压监测与防治

同煤科技 2016年第4期 44-46页

作者：刘宏旺大同煤业集团公司忻州窑矿

采用关键层理论对坚硬顶板工作面初次来压步距进行了理论分析,提出了矿压防治措施,并通过液压支架在线监测进行及时监测预报。研究表明,预测8939工作面初次来压步距为62 m^93 m,液压支架应力监测达到32.9 MPa时有来压迹象,应力达到41.8 ... 详细信息

采用关键层理论对坚硬顶板工作面初次来压步距进行了理论分析,提出了矿压防治措施,并通过液压支架在线监测进行及时监测预报。研究表明,预测8939工作面初次来压步距为62 m^93 m,液压支架应力监测达到32.9 MPa时有来压迹象,应力达到41.8 MPa时工作面初次来压,实际来压步距约107m,与理论值较为相近。为减缓矿压显现强度,提出了爆破放顶和钻孔卸压措施,使8939工作面矿压显现得到有效的缓解,保证了工作面的安全回采。

关键词：坚硬顶板矿压液压支架监测爆破放顶钻孔卸压

急性期介入推拿对家兔骨骼肌钝挫伤的修复作用研究

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云南中医药大学学报 2024年第2期47卷 80-87页

作者：刘宏旺李应志赣州市第五人民医院江西赣州341000 云南中医药大学第二附属医院云南昆明650500

目的研究家兔骨骼肌钝挫伤在急性期不同时间点介入并持续推拿后的骨骼肌修复作用机制。方法 40只家兔随机分为5组:伤后30 min手法组、伤后2 h手法组、冰敷对照组、模型组、空白组。分别在伤后第7天、14天取材观察。结果损伤后第1、2天... 详细信息

目的研究家兔骨骼肌钝挫伤在急性期不同时间点介入并持续推拿后的骨骼肌修复作用机制。方法 40只家兔随机分为5组:伤后30 min手法组、伤后2 h手法组、冰敷对照组、模型组、空白组。分别在伤后第7天、14天取材观察。结果损伤后第1、2天30 min组肿胀小于2 h组(P0.05);损伤7 d后,30 min组PGE2、5-HT含量低于2 h组(P<0.05);损伤14 d后30 min组IL-6含量低于2 h组(P<0.05);损伤7 d后30 min组PAX7表达低于2 h组(P<0.05);损伤14 d后30min组与2 h组MyoD表达趋于一致,30 min组PAX7表达低于2 h组(P<0.05)。结论在家兔骨骼肌钝挫伤的急性期内,相较于2 h介入推拿治疗,30 min介入推拿的治疗效果更佳。

关键词：骨骼肌钝挫伤推拿

The Knowledge on Holographic Acupoint Groups of Pretibial Exterior Margin

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中国针灸 1995年第S2期15卷 371-371页

作者： Zhou Jinlin Zhao Yiwei liu hongwang(Chezhuang Coal Mine Linyi City,Shandong Province 276018)(Xiazhuang Hospital,Ju County,Shandong Province 276514)

ＴｈｅＫｎｏｗｌｅｄｇｅｏｎＨｏｌｏｇｒａｐｈｉｃＡｃｕｐｏｉｎｔＧｒｏｕｐｓｏｆＰｒｅｔｉｂｉａｌＥｘｔｅｒｉｏｒＭａｒｇｉｎ￥ＺｈｏｕＪｉｎｌｉｎ；ＺｈａｏＹｉｗｅｉ；ＬｉｕＨｏｎｇｗａｎｇ（ＣｈｅｚｈｕａｎｇＣ... 详细信息

ＴｈｅＫｎｏｗｌｅｄｇｅｏｎＨｏｌｏｇｒａｐｈｉｃＡｃｕｐｏｉｎｔＧｒｏｕｐｓｏｆＰｒｅｔｉｂｉａｌＥｘｔｅｒｉｏｒＭａｒｇｉｎ￥ＺｈｏｕＪｉｎｌｉｎ；ＺｈａｏＹｉｗｅｉ；ＬｉｕＨｏｎｇｗａｎｇ（ＣｈｅｚｈｕａｎｇＣｏａｌＭｉｎｅＬｉｎｙｉＣｉｔｙ，...

关键词： The Knowledge on Holographic Acupoint Groups of Pretibial Exterior Margin

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水利工程施工中的防渗技术研究

中国厨卫 2024年第7期23卷 64-66页

作者：刘洪旺时召召日照力源水利工程有限公司山东日照276800

在水资源有限的情况下,水利工程建设是解决我国水资源短缺的重要手段。然而,由于地质条件、气候变化等因素的影响,水利工程的修建过程中存在着一定的风险和隐患。其中,防渗问题是一个重要的问题,其主要表现为水体渗透性强、渗漏率高等... 详细信息

在水资源有限的情况下,水利工程建设是解决我国水资源短缺的重要手段。然而,由于地质条件、气候变化等因素的影响,水利工程的修建过程中存在着一定的风险和隐患。其中,防渗问题是一个重要的问题,其主要表现为水体渗透性强、渗漏率高等。因此,如何有效地应用防渗技术,对保障水利工程的质量安全具有重要意义。文章将对水利工程施工中的防渗技术进行研究,为后续的水利工程建设提供参考依据。

关键词：水利工程施工防渗技术

Experimental Research on a Feasible Building Insulation Material Based Reed in China

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Journal of Thermal Science 2025年第1期34卷 176-187页

作者： liu Tiantian PENG Yizhe liu Lifang CAI Chenghan WANG Shuang LI Hongqiang College of Civil Engineering Hunan University College of Civil Engineering Hunan University of Science and Technology School of Energy and Power Jiangsu University of Science and Technology National Center for International Research Collaboration in Building Safety and Environment (NCIRCBSE) Hunan University Key Laboratory of Building Safety and Energy Efficiency of the Ministry of Education Hunan University

The seemingly useless reeds are prepared as thermal insulation materials,which not only meet the requirements of environmental sustainability but also enhance the added value of reeds,creating new economic *** hydrophobicity of raw biomass surfaces leads to problems such as weak bonding strength and non-dense structure in the formed materials,as well as issues related to the residual insect infestations on the *** this study,reed straw was used as the raw material,and foamed geopolymer was used as the binder to prepare building insulation materials based *** improve the interfacial adhesion performance between reed straw and foamed geopolymer,a thermochemical modification method-thermal carbonization,was *** this study,the mechanical properties and hydraulic properties of the studied materials with different degrees of surface thermal modification were tested,especially the fire resistance performance,and weathering resistance performance rarely found in published *** the surface thermal modification condition of reed straw was 250℃（30 min）,the comprehensive performance of reed-based building insulation materials was the best,when the studied material density was 321.3 kg/m3;the compressive strength was 0.59 MPa;the thermal conductivity was 0.101 W/（m·K）;the pH was 11.27;the moisture absorption rate was 25.1%,and the compressive strength loss rate in wet-dry cycles was 18.5%.In addition,it had excellent fire resistance performance and weathering resistance *** new material can be widely used to improve the thermal insulation of traditional buildings and as sandwich filler in prefabricated buildings,such as preparing insulating walls.

关键词： building insulation material based reed fire resistance performance interface adhesion properties pre-treatment of reeds weathering resistance performance

Rational modulation of fluorophosphate cathode by anionic groups to reduce the polarization behavior for fast-charging sodium-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 509-521页

作者： Xinyuan Wang Fan Zhang Xingyu Zhou Qian Wang Changyu liu Yangyang liu Hui Wang Xiaojie liu Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University

Na3V2（PO4）2O2F （VP） is recognized as a promising cathode material for sodium-ion batteries due to its stable structural framework and high specific *** functional theory （DFT） and finite element simulations show that incorporating SO42-into VP decreases its band gap,lowers the migration energy barrier,and ensures a uniform Na+concentration gradient and stress distribution during charge and discharge ***,the average Na+diffusion coefficient of Na3V2（PO4）1.95（SO4）0.05O2F（VPS-1） is roughly double that of VP,leading to enhanced rate capability (80 C,75.5 mAh g-1) and cycling stability (111.0 mAh g-1capacity after 1000 cycles at 10 C current density) for ***-1 exhibits outstanding fast-charging capabilities,achieving an 80%state of charge in just 8.1 *** assembled VPS-1//SbSn/NPC full cell demonstrated stable cycling over 200 cycles at a high 5 C current,maintaining an average coulombic efficiency of 95.35%.

关键词： Anionic group modulation Polarization behavior Fast-charging Sodium-ion battery Fluorophosphate Cathode

Post-tunable salt gel electrolytes toward flexible supercapacitor switches

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Journal of Energy Chemistry 2025年第1期100卷 114-124页

作者： Hui Wang Shuang Chen Xuming liu Qin Zhang Xin liu Polymeric and Soft Materials Laboratory School of Chemistry and Life Science and Advanced Institute of Materials Science Changchun University of Technology Polymeric and Soft Materials Laboratory School of Chemical Engineering and Advanced Institute of Materials Science Changchun University of Technology

Convertible hydrogel supercapacitors have emerged as promising energy storage devices in switches,diodes, and transistors. However, inherent weaknesses in ionic conductivity, mechanical properties,and water retention of hydrogel electrolytes seriously hinder their development. Inspired by the hardness conversion of sea cucumber skin, a conductivity and mechanics dual-tunable salt gel electrolyte is successfully designed. The salt gel presents a reversible switching of conductors-insulators and a mechanical regulation between softness and hardness via the dissolution-crystallization transition of sodium acetate trihydrate（SAT）. Meanwhile, the salt gels spontaneously grow a layer of “armor” through saturated phase-change salt crystals effectively reducing water evaporation of hydrogel ***, this phase-change soft-rigid conversion strategy will expand the capabilities of gel-based flexible supercapacitors(area capacitance: 258.6 mF cm-2), and the capacitance retention rate could still reach 86.9% after 3000 cycles at high temperatures. Moreover, the salt gel supercapacitor is potentially used in over-heat alarm systems. It is anticipated that the strategy of conductivity and mechanics of dual-tunable salt gel would provide a new perspective on the development of energy storage devices,wearable electronics, and flexible robots.

关键词： Capacitance

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材料低温膨胀性能检测装置

实验技术与管理 2019年第2期36卷 123-126页

作者：何珺刘洪旺陈学广彭会芬马晓莉河北工业大学材料科学与工程学院天津300130 河北省功能材料重点实验室天津300130 中芯北方集成电路制造(北京)有限公司北京100176 天津市材料层状复合与界面控制技术重点实验室天津300130

德国Leica-J11万能膨胀仪,一是仅凭人的视觉读取信号容易引起较大误差,二是其测定温度范围仅限在室温以上。为了弥补目前材料低温膨胀仪数量少以及测试成本昂贵的不足,在该设备的基础上进行了改装。改装后仪器的测试温度范围为80～273K... 详细信息

德国Leica-J11万能膨胀仪,一是仅凭人的视觉读取信号容易引起较大误差,二是其测定温度范围仅限在室温以上。为了弥补目前材料低温膨胀仪数量少以及测试成本昂贵的不足,在该设备的基础上进行了改装。改装后仪器的测试温度范围为80～273K,膨胀系数测定范围为10^(-6)～10^(-5)/K,测量精度达10mm。改装后的仪器能够满足材料低温性能的测试要求。

关键词：低温材料膨胀特性测试装置