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上海公路 2022年第3期 85-89,119,M0007页

作者：田健君绿地大基建集团有限公司上海200010

为更好地应对沥青路面水损害问题,针对性提高改性沥青混合料的抗水损害性能,从沥青胶浆角度入手,通过胶浆拉拔试验,以胶浆拉拔强度和湿干比为主要指标,对常用的SBS改性沥青的沥青胶浆水敏感性、黏附性及其影响因素进行了研究。研究结果... 详细信息

为更好地应对沥青路面水损害问题,针对性提高改性沥青混合料的抗水损害性能,从沥青胶浆角度入手,通过胶浆拉拔试验,以胶浆拉拔强度和湿干比为主要指标,对常用的SBS改性沥青的沥青胶浆水敏感性、黏附性及其影响因素进行了研究。研究结果表明,本研究采用的拉拔试验能够很好地评价沥青胶浆的黏附性能;线型SBS改性剂能够显著提升沥青胶浆的黏附性和抗水敏感性;石灰岩稳定剂的加入,会降低线型SBS类改性沥青胶浆的黏附性,但有利于提升沥青胶浆抗水敏感性,以0.15%为最佳掺量;橡胶油对沥青胶浆的黏附性会造成一定的不利影响。

关键词：水损害 SBS改性沥青沥青胶浆拉拔试验

装配式涵洞施工技术研究——以安徽省德上高速合枞段HZTJ-03标为例

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工程技术研究 2022年第10期7卷 67-69页

作者：田建军中交一公局第三工程有限公司北京101102

装配式结构的施工应用是未来高速公路施工发展的必然趋势。文章通过分析装配式涵洞的技术应用特征,以实际工程为例,就装配式混凝土涵洞设计方案、施工工艺、构件制作、现场安装等技术要求进行了阐述。装配式涵洞施工趋向于工厂化、规范... 详细信息

装配式结构的施工应用是未来高速公路施工发展的必然趋势。文章通过分析装配式涵洞的技术应用特征,以实际工程为例,就装配式混凝土涵洞设计方案、施工工艺、构件制作、现场安装等技术要求进行了阐述。装配式涵洞施工趋向于工厂化、规范化、规模化、标准化,相比于传统涵洞的现场浇筑施工方式,施工工期、工程质量和工程造价得到优化且更加可控。

关键词：装配式涵洞预制构件施工技术

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BIM+预制装配式全断面桩板路基施工工法

江西建材 2022年第4期 187-188,194页

作者：田建军中交一公局第三工程有限公司北京101102

文中就预制装配式全断面桩板路基施工工法展开论述,结合德上高速合枞段HZTJ-02标和德上高速合枞段HZTJ-03标工程施工,探讨其经济效益、社会效益和环境效益,取得了良好的应用效果。

关键词： BIM技术路基施工装配式

Magnetic properties and thermal stability of anisotropic bonded Nd-Fe-B magnets by warm compaction

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Rare Metals 2009年第3期28卷 245-247页

作者： TAO Siwua LU Xina tian jianjun QU Xuanhui Y. Honkura H. Mitarai K. Noguchi School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China Aichi Steel Corporation Wano-wari. Arao-machi Tokai-shi Aichi-ken 476-8666 Japan

Anisotropic bonded magnets were prepared by warm compaction using anisotropic Nd-Fe-B powder. The forming process, magnetic properties, and temperature stability were studied. The results indicate that the optimal temperature of the process, which was decided by the vis-cosity of the binders, was 110°C. With increasing pressure, the density of the magnets increased. When the pressure was above 700 MPa, the powder particles were destroyed and the magnetic properties decreased. The magnetic properties of the anisotropic bonded magnets were as follows： remanence Br=0.98 T, intrinsic coercivity iHc=1361 kA/m, and maximum energy product BHmax=166 kJ/m3. The magnets had excellent thermal stability because of the high coercivity and good squareness of demagnetization curves. The flux density of the magnets was 35% higher than that of isotropic bonded Nd-Fe-B magnets at 120°C for 1000 h. The flux density of the bonded magnets showed little change with regard to temperature.

关键词： anisotropic magnets Nd-Fe-B magnets warm compaction process magnetic properties thermal stability

乳酸菌对苏尼特羊肠道菌群组成及肉品质的影响

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中国食品学报 2022年第2期22卷 131-139页

作者：刘婷王柏辉刘畅段艳苏琳田建军素布达靳烨内蒙古农业大学呼和浩特010018 乌拉特中旗农牧和科技局内蒙古巴彦淖尔015300

反刍动物肠道菌群多样性对动物肉品质有重要的影响。采用高通量测序技术分析饲粮中添加乳酸菌对苏尼特羊肠道菌群组成及肉品质的影响。选取3月龄健康苏尼特羊12只,分成2组,一组饲喂基础饲粮,另一组在基础饲粮中添加0.5%的乳酸菌,饲养90 ... 详细信息

反刍动物肠道菌群多样性对动物肉品质有重要的影响。采用高通量测序技术分析饲粮中添加乳酸菌对苏尼特羊肠道菌群组成及肉品质的影响。选取3月龄健康苏尼特羊12只,分成2组,一组饲喂基础饲粮,另一组在基础饲粮中添加0.5%的乳酸菌,饲养90 d后屠宰。结果表明:在乳酸菌组肠道中拟杆菌门及疣微菌门丰度占比均显著高于对照组(P<0.05),毛螺菌科NK3A20类群及另枝菌属丰度占比均显著低于对照组(P<0.05);在乳酸菌组背最长肌中红度值a^(*)、亮度值L^(*)显著高于对照组(P<0.05),风味物质如烃类、酮类、酯类等显著高于对照组(P<0.05),氨基酸以及不饱和脂肪酸含量均显著高于对照组(P<0.05),剪切力值则显著低于对照组(P<0.05)。整体上,饲粮添加乳酸菌可以优化苏尼特羊的肠道菌群结构组成,促进机体营养代谢,进而改善肉品质。

关键词：乳酸菌肠道菌群高通量测序技术肉品质

乳酸菌对发酵肉制品抑菌作用及风味特征的影响研究进展

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食品科学 2023年第9期44卷 194-201页

作者：高芳包亚莉华晓青张开屏王凤梅田建军靳烨内蒙古农业大学食品科学与工程学院内蒙古呼和浩特010018 内蒙古工业大学化工学院内蒙古呼和浩特010018 鄂尔多斯市农畜产品质量安全中心内蒙古鄂尔多斯017000 内蒙古商贸职业学院餐饮食品系内蒙古呼和浩特010070

发酵肉制品因生产周期较长、营养物质丰富,极易受到微生物的污染,从而影响产品品质并对人体健康带来不利的影响。由于消费者对发酵肉制品风味以及安全性的关注日益增加,因此对肉制品的安全性以及风味特征的研究非常重要。乳酸菌是最早... 详细信息

发酵肉制品因生产周期较长、营养物质丰富,极易受到微生物的污染,从而影响产品品质并对人体健康带来不利的影响。由于消费者对发酵肉制品风味以及安全性的关注日益增加,因此对肉制品的安全性以及风味特征的研究非常重要。乳酸菌是最早从发酵肉制品中分离出来的微生物,是传统发酵肉制品中重要的优势菌群,与产品品质密切相关。在发酵肉制品中,乳酸菌不仅可以产生具有抑菌作用的物质抑制有害微生物生长,提高肉制品的安全性;还可以通过影响碳水化合物代谢、蛋白质以及脂质的分解氧化,从而改善发酵肉制品的风味。本文主要从乳酸菌影响发酵肉制品中有害微生物的生长、提高产品安全性及其对风味形成的影响方面进行综述,以期为今后发酵肉制品的研究提供新思路。

关键词：乳酸菌发酵肉制品抑菌作用风味

D-band 4600 m wireless transmission with rates exceeding 100 Gbit/s based on photonics aided technologies

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Science China Technological Sciences 2024年第9期67卷 2968-2970页

作者： ZHAO XianMing YU jianjun YANG XiongWei WEI Yi LI WeiPing TAN JingWen WANG MingXu ZHANG QiuTong ZHANG Bing BIAN ChengZhen tian Peng HAN Yang ZHANG QingYi YU JianGuo ZHAO Feng Harbin Institute of Technology Key Laboratory for Information Science of Electromagnetic Waves Fudan University School of Electronic Engineering Beijing University of Posts and Telecommunications School of Automation Xi'an University of Posts and Telecommunications

With the rise of emerging applications such as artificial intelligence(AI),virtual reality(VR), and short videos, the number of Internet terminals has increased dramatically [1]. According to the Cisco Annual Traffic Survey Report, annual traffic is growing at a compound annual growth rate of 20%[2]. To meet exploding growth in traffic demands, researchers have turned their attention to license-free high-band millimeter wave(MMW), such as W-band(75–110 GHz), D-band(110–170 GHz), and terahertz band(THz) [3,4].

关键词：

Advances in the Application of Perovskite Materials

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Nano-Micro Letters 2023年第10期15卷 334-381页

作者： Lixiu Zhang Luyao Mei Kaiyang Wang Yinhua Lv Shuai Zhang Yaxiao Lian Xiaoke Liu Zhiwei Ma Guanjun Xiao Qiang Liu Shuaibo Zhai Shengli Zhang Gengling Liu Ligang Yuan Bingbing Guo Ziming Chen Keyu Wei Aqiang Liu Shizhong Yue Guangda Niu Xiyan Pan Jie Sun Yong Hua Wu‑Qiang Wu Dawei Di Baodan Zhao jianjun tian Zhijie Wang Yang Yang Liang Chu Mingjian Yuan Haibo Zeng Hin‑Lap Yip Keyou Yan Wentao Xu Lu Zhu Wenhua Zhang Guichuan Xing Feng Gao Liming Ding Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190People’s Republic of China University of Chinese Academy of Sciences Beijing 100049People’s Republic of China Department of Physics Link.ping University58183 Link.pingSweden Institute of Applied Physics and Materials Engineering University of MacaoMacao 999078People’s Republic of China School of Materials Science and Engineering Yunnan UniversityKunming 650091People’s Republic of China School of Microelectronics Science and Technology Sun Yat-sen UniversityZhuhai 519082People’s Republic of China College of Electronic Information and Optical Engineering Nankai UniversityTianjin 300350People’s Republic of China Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic Systems Harbin Institute of TechnologyShenzhen 518055People’s Republic of China School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing 210094People’s Republic of China College of Optical Science and Engineering Zhejiang UniversityHangzhou 310027People’s Republic of China State Key Laboratory of Superhard Materials Jilin UniversityChangchun 130012People’s Republic of China College of Electronic and Optical Engineering Nanjing University of Posts and TelecommunicationsNanjing 210023People’s Republic of China School of Chemistry Sun Yat-sen UniversityGuangzhou 510006People’s Republic of China School of Environment and Energy South China University of TechnologyGuangzhou 510000People’s Republic of China Department of Chemistry Imperial College LondonLondon W120BZUK College of Chemistry Nankai UniversityTianjin 300071People’s Republic of China Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083People’s Republic of China Institute of Semiconductors Chinese Academy of SciencesBeijing 100083People’s Republic of China School

Nowadays, the soar of photovoltaic performance of perovskite solar cells has set off a fever in the study of metal halide perovskite materials. The excellent optoelectronic properties and defect tolerance feature allow metal halide perovskite to be employed in a wide variety of applications. This article provides a holistic review over the current progress and future prospects of metal halide perovskite materials in representative promising applications, including traditional optoelectronic devices(solar cells, light-emitting diodes, photodetectors, lasers), and cutting-edge technologies in terms of neuromorphic devices(artificial synapses and memristors) and pressure-induced emission. This review highlights the fundamentals, the current progress and the remaining challenges for each application, aiming to provide a comprehensive overview of the development status and a navigation of future research for metal halide perovskite materials and devices.

关键词： Perovskites Optoelectronic devices Neuromorphic devices Pressure-induced emission

橡胶粉对水泥稳定级配碎石力学性能与变形特性的影响

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混凝土 2022年第5期 162-166,172页

作者：田建军张涛郭纪飞李兴业中交一公局第三工程有限公司北京101100 交通运输部公路科学研究院北京100088

为了增强水泥稳定碎石的柔韧性,并提高半刚性基层的抗裂性能,将0~4.75 mm小汽车轮胎胶粉等质量替代集料,基于室内试验研究了橡胶粉掺量对橡胶粉-水泥稳定级配碎石混合料力学性能和变形特性的影响规律。结果表明,橡胶粉-水泥稳定碎石的... 详细信息

为了增强水泥稳定碎石的柔韧性,并提高半刚性基层的抗裂性能,将0~4.75 mm小汽车轮胎胶粉等质量替代集料,基于室内试验研究了橡胶粉掺量对橡胶粉-水泥稳定级配碎石混合料力学性能和变形特性的影响规律。结果表明,橡胶粉-水泥稳定碎石的无侧限抗压强度、弯拉强度均随橡胶粉掺量增大而线性关系降低,在4.5%~5.5%水泥剂量范围内,掺加2%~4%橡胶粉能确保水泥稳定碎石有足够的无侧限抗压强度和抗冲刷性能,同时实现了橡胶粉-水泥稳定碎石破坏应变和疲劳寿命显著增大、模量可调节的功能,橡胶粉-水泥稳定碎石可作为路面结构的变形协调功能层。橡胶粉提高了水泥稳定级配碎石混合料的劈裂破坏应变与弯拉破坏应变,在3%橡胶粉掺量时,橡胶粉-水泥稳定碎石混合料的疲劳性能最优,同时疲劳寿命对应力水平的敏感性最低。但是掺加橡胶粉能降低水泥稳定级配碎石混合料温缩性能的不利影响。实体工程跟踪检测结果表明,橡胶粉-水泥稳定级配碎石混合料施工性能和力学性能优良,掺加橡胶粉能提高水泥稳定级配碎石混合料的抗裂性能,对防止半刚性基层沥青路面早发性反射裂缝有着积极的意义。

关键词：道路工程水泥稳定碎石橡胶粉橡胶粉-水泥稳定碎石持强增韧特性力学性能变形特性