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应变率对高固含量HTPB推进剂力学特性与破坏机制的影响

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火炸药学报 2024年第7期47卷 656-664,I0004页

作者：吴成丰胡少青卢莹莹杨洪涛任黎张皓媛李宏岩西安近代化学研究所陕西西安710065

通过不同拉伸速率下的单轴拉伸力学性能试验,研究了应变率与90%固含量(固体颗粒的质量分数)HTPB推进剂力学性能之间的相关性,并采用扫描电镜对拉伸断面进行了观察,分析了应变率对推进剂力学性能和破坏机制的影响。结果表明,在低应变率... 详细信息

通过不同拉伸速率下的单轴拉伸力学性能试验,研究了应变率与90%固含量(固体颗粒的质量分数)HTPB推进剂力学性能之间的相关性,并采用扫描电镜对拉伸断面进行了观察,分析了应变率对推进剂力学性能和破坏机制的影响。结果表明,在低应变率条件下,推进剂的应力—应变曲线出现了弧段现象;随着应变率增加,推进剂应力—应变曲线逐渐由5段式变为4段式;推进剂的初始模量、最大抗拉强度随应变率的增大呈现出上升趋势;推进剂的最大延伸率随应变率增大呈现出降低趋势,在应变率为1190.48×10^(-4)s^(-1)时最大延伸率仅为33.9%;随着应变率增大,高固含量HTPB推进剂的破坏机制逐渐由颗粒“脱湿”转变为基体撕裂,无颗粒破碎产生。

关键词：材料力学 HTPB推进剂应变率单轴拉伸试验破坏机制

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路基用温拌沥青混合料技术探析与应用研究

砖瓦 2024年第9期 33-37页

作者：刘更见杨洪涛尚洪涛陈伟陈曦临沂市建设工程施工图审查有限公司山东临沂276000 东营市建设工程施工图审查中心山东东营257091 济南能源工程集团有限公司山东济南250013 临沂绿水环保科技有限公司山东临沂277700 山东兰投矿业有限公司山东临沂277700

结合温拌沥青技术的发展与研究现状,详细阐述温拌沥青混合料技术的生产与施工创新特点,探析实现温拌技术的机械发泡过程和界定温度。通过温拌沥青混合料技术生产参数研究、膨胀率和半衰期测定及发泡效果评价指标分析、室内试验装置和现... 详细信息

结合温拌沥青技术的发展与研究现状,详细阐述温拌沥青混合料技术的生产与施工创新特点,探析实现温拌技术的机械发泡过程和界定温度。通过温拌沥青混合料技术生产参数研究、膨胀率和半衰期测定及发泡效果评价指标分析、室内试验装置和现有研发设备探讨等多方位探析研究,针对目前研究应用的技术瓶颈和存在问题,指出温拌沥青与传统热拌沥青性能相当的前提下,可有效降低施工温度30℃~50℃,大幅减少废气粉尘排放,属新型绿色低碳环保技术,建议现阶段需重点攻克从设计、生产到施工的成套关键技术难题,健全标准体系,以规范其生产施工,便于推广应用。

关键词：温拌沥青混合料热拌沥青路基

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自驱动关节臂测量机多电机同步控制系统

机械设计与制造 2024年第9期403卷 279-283页

作者：马晓春沈梅胡婷婷杨洪涛淮南师范学院应用技术学院安徽淮南232052 安徽理工大学机械工程学院安徽淮南232001

为了解决自驱动关节臂坐标测量机的多电机同步转动问题,设计了一套多电机同步控制系统。该系统选用以TMS320F28335为核心的DSP处理器,依次设计了双CAN通信电路、功率逆变电路、电机驱动电路等驱动板接口电路;利用Simulink建立了六电机... 详细信息

为了解决自驱动关节臂坐标测量机的多电机同步转动问题,设计了一套多电机同步控制系统。该系统选用以TMS320F28335为核心的DSP处理器,依次设计了双CAN通信电路、功率逆变电路、电机驱动电路等驱动板接口电路;利用Simulink建立了六电机同步转动控制仿真模型,将电机控制模型转化为工程代码,对六电机设定不同的位置角度进行点到点位置同步实验,以及多电机轨迹跟踪实验。实验结果分析得到同步控制时间精度在10ms以内,验证了六电机的同步控制有效性,为提高测量机的运动平稳性和测量效率提供参考依据。

关键词：自驱动关节臂多电机同步控制 DSP

成本粘性对制造企业绩效的影响——基于产权异质性视角

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江苏经贸职业技术学院学报 2024年第1期 6-10页

作者：周礼勇杨洪涛西南林业大学会计学院云南昆明650224

基于拓宽管理会计工具应用范围的目标,根据战略成本观和机会主义观,实证检验了成本粘性对制造企业绩效的影响。研究表明:成本粘性与企业绩效显著负相关,证实了机会主义观的成本粘性假设;按产权性质差异进行分组检验发现,在非国有样本中... 详细信息

基于拓宽管理会计工具应用范围的目标,根据战略成本观和机会主义观,实证检验了成本粘性对制造企业绩效的影响。研究表明:成本粘性与企业绩效显著负相关,证实了机会主义观的成本粘性假设;按产权性质差异进行分组检验发现,在非国有样本中成本粘性对企业绩效的负向影响更显著。

关键词：成本粘性制造企业企业绩效产权性质

Value of mink vomit model in study of anti-emetic drugs

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World Journal of Gastroenterology 2006年第8期12卷 1300-1302页

作者： Fang Zhang Lei Wang Zhi-hong yang Zhan-tao Liu Wang Yue Department of Pharmacology Medical College of Qingdao University Qingdao 266021 Shandong Province China

AIM： To establish a new, reliable vomit model of minks METHODS： Adult male minks were randomly divided into 8 groups （n=6）： cisplatin （7.5 mg/kg） intraperitoneal injection （ip） group, copper sulfate （40 mg/kg） intragastric injection （ig） group, apomorphine （1.6 mg/kg） subcutaneous injection （sc） group, and 18 Gy whole-body X-irradiation group, ondansetron injection group （2 mg/kg ip） 30 min later followed by cisplatin （7.5 mg/kg） ip, normal saline （NS） ip injection control group, metoclopramide injection group （4 mg/kg ip） 30 rain later followed by apomorphine （1.6 mg/kg） sc, NS ig control group. The frequency of retching and vomiting was calculated. After behavioral experiment, distribution of 5-HT in the ileum was detected by immunohistologic method. RESULTS： Cisplatin, apomorphine, copper sulfate and X-irradiation administered to minks evoked a profound emetic response in the animals. However, retching and vomiting were significantly inhibited by pretreatment with ondansetron and metoclopramide in cisplatin and copper sulfate groups （P=0.018）. Immunohistologic result showed that 5-HT released from enterochromaffin cells （EC cells） was involved in vomiting mechanism. CONCLUSION： Mink vomit model has a great value in studying the vomiting mechanism and screening new antiemetic drugs.

关键词： Vomit Mink Cisplatin Ondansetron Apomorphine X-irradiation

Progress and prospects of graphene-based materials in lithium batteries

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Rare Metals 2024年第5期43卷 1886-1905页

作者： Shen Lai tao Huang Pei Liu hong-Bin Wang Shi-Chun yang Xin-Hua Liu Kai yang Qian-Ling Zhang Jian-hong Liu Jiang-tao Hu Graphene Composite Research Center College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen 518060China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China Shenzhen Eigen-Equation Graphene Technology Co.Ltd Shenzhen518060China School of Transportation Science and Engineering Beihang UniversityBeijing 100191China Department of Electrical and Electronic Engineering Advanced Technology InstituteUniversity of SurreyGuildfordSurrey GU27XHUK

Reasonable design and applications of graphene-based materials are supposed to be promising ways to tackle many fundamental problems emerging in lithium batteries,including suppression of electrode/electrolyte side reactions,stabilization of electrode architecture,and improvement of conductive ***,extensive fundamental research on this aspect has been performed so ***,when it comes to large-scale industrial applications,the utilization of graphene-based materials progresses at a very slow ***,there presents a severe technological decoupling between academic research and industrial application,and there is an urgent need to link ***,in order to address current issues of graphene-based materials used in lithium batteries,we present their latest advancements with stateof-the-art *** applications of graphenebased materials in practical lithium batteries are highlighted and predicted to bridge the gap between the academic progress and industrial manufacture,thereby paving the way for accelerating the development of graphenebased material as well as lithium battery industry.

关键词： Lithium batteries Graphene-based materials Academic research Industrial application Development direction

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杨洪涛运用药对治疗血尿经验拾萃

河南中医 2018年第5期38卷 687-689页

作者：雷洋洋杨洪涛天津中医药大学第一附属医院天津300193

杨洪涛教授秉承《黄帝内经》"少阳属肾,上连于肺,故将两脏"的经典理论,认为少阳枢机功能对于肾之气化,肺之宣肃,以至一身气、火、水的升降出入来说具有重要意义。杨洪涛教授治疗慢性肾脏病宗"肾疏宁疏利少阳"之旨,在小柴胡汤基础上配伍... 详细信息

杨洪涛教授秉承《黄帝内经》"少阳属肾,上连于肺,故将两脏"的经典理论,认为少阳枢机功能对于肾之气化,肺之宣肃,以至一身气、火、水的升降出入来说具有重要意义。杨洪涛教授治疗慢性肾脏病宗"肾疏宁疏利少阳"之旨,在小柴胡汤基础上配伍补益脾肾、清热祛痰化瘀中药,取效显著。杨洪涛教授取小蓟、白茅根性凉濡润,入血分而止血之效,凡因热而出现血尿者常用此二药凉血而止血,同时配合地榆、侧柏叶等其他凉血药物,加强柴胡、黄芩疏理中焦热邪之效,临证为防凉血药有凉血留瘀之弊,常采用温性的活血化瘀药蒲黄炭、三七佐之。

关键词：血尿药对柴胡黄芩小蓟白茅根蒲黄,三七茜草仙鹤草茯苓泽泻杨洪涛

Multi-modular metabolic engineering of heme synthesis in Corynebacterium glutamicum

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Synthetic and Systems Biotechnology 2024年第2期9卷 285-293页

作者： Qiuyu yang Xi Sun hong Wang tao Chen Zhiwen Wang Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering(Ministry of Education) Tianjin UniversityTianjin300072China SynBio Research Platform Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)School of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China School of Life Science Ningxia UniversityYinchuan750021China

Heme,an iron-containing porphyrin derivative,holds great promise in fields like medicine,food production and ***,we developed an engineered Corynebacterium glutamicum strain for efficient heme production by combining modular engineering and RBS *** whole heme biosynthetic pathway was methodically divided into 5-ALA synthetic module,uroporphyrinogen III(UPG III)synthetic module and heme synthetic module for further construction and *** heme synthetic modules were compared and the siroheme-dependent(SHD)pathway was identified to be optimal in *** for the first *** further improve heme production,the expression of genes in UPG III synthetic module and heme synthetic module was coordinated optimized through RBS engineering,***,heme oxygenase was knocked out to reduce heme *** engineered strain HS12 showed a maximum iron-containing porphyrin derivatives titer of 1592 mg/L with the extracellular secretion rate of 45.5%in fed-batch *** study constructed a *** chassis strain for efficient heme accumulation,which was beneficial for the advancement of efficient heme and other porphyrins production.

关键词： Corynebacterium glutamicum Heme Biosynthetic pathways Metabolic engineering

Triboelectric nanogenerator integrated with a simple controlled switch for regularized water wave energy harvesting

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Nano Research 2024年第8期17卷 7585-7592页

作者： hongbo yang Xi Liang Junwu Kan Zhong Lin Wang tao Jiang Zhanyong hong College of Engineering Zhejiang Normal UniversityJinhua 321004China Beijing Key Laboratory of Micro-Nano Energy and Sensor Center for High-Entropy Energy and SystemsBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400China The Beijing Key Laboratory for Nano-Photonics and Nano-Structure Department of PhysicsCapital Normal UniversityBeijing 100048China Guangzhou Institute of Blue Energy Guangzhou 510555China Georgia Institute of Technology AtlantaGA 30332-0245USA Yonsei Frontier Lab Yonsei UniversitySeoul 03722Republic of Korea

Ocean is full of low-frequency,irregular,and widely distributed wave energy,which is suitable as the energy source for maritime Internet of Things(IoTs).Utilizing triboelectric nanogenerators(TENGs)to harvest ocean wave energy and power sensors is proven to be an effective ***,in random ocean waves,the irregular electrical energy output by general TENGs restricts the *** present,achieving regularized water wave energy harvesting relies on rather complex mechanical structure designs,which is not conducive to *** this work,we proposed a novel mechanical controlled TENG(MCTENG)with a simple controlled switch to realize the regularization *** structural parameters of the MC-TENG are optimized,and the optimal output voltage,output current,and transferred charge respectively reach 1684.2 V,85.4μA,and 389.9 nC,generating a peak power density of 38.46 W·m^(−3)·Hz^(−1).Under real water wave environment,the output of the MC-TENG is regularized and keeps stable regardless of any wave ***,the potential applications of the MC-TENG are demonstrated in powering environmental temperature,humidity,and wind speed *** work renders a simple approach to achieve effective regularized ocean wave energy harvesting,promoting the TENG industrialization toward practical application of maritime IoTs.

关键词： water wave energy harvesting triboelectric nanogenerators random excitation mechanical control regular output