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力学环境约束下剪切销可靠性分析及优化设计

爆炸与冲击 2019年第7期39卷 126-134页

作者：王若冰赵志军肖和业陈家文蒋晓磊西安现代控制技术研究所

剪切销是火工装置关键部件,其可靠性不仅表现为点火作用下可靠剪断,还表现为受力学环境激励不发生断裂。本文中以多项式混沌展开方法为基础,建立了力学环境约束下的剪切销分析模型,结合序贯优化与可靠性分析方法,提出了剪切销可靠性优... 详细信息

剪切销是火工装置关键部件,其可靠性不仅表现为点火作用下可靠剪断,还表现为受力学环境激励不发生断裂。本文中以多项式混沌展开方法为基础,建立了力学环境约束下的剪切销分析模型,结合序贯优化与可靠性分析方法,提出了剪切销可靠性优化设计的思路。以某型火工作动装置为应用实例,依据实用的力学环境,进行了剪切销可靠性分析及优化设计,揭示了设计参数与力学环境之间的关系,并获得了影响可靠性的关键参数。最后,开展了优化后的火工作动装置实验测试,结果佐证了优化设计的有效性。

关键词：可靠性分析可靠性设计优化多项式混沌展开序贯优化剪切销

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智能化弹药结构技术进展及发展建议

前瞻科技 2022年第4期1卷 55-68页

作者：朱继宏肖和业张永励王若冰孙锋西北工业大学机电学院西安710072 西北工业大学无人系统技术研究院西安710072 西安现代控制技术研究所西安710065

近20年来智能化弹药结构技术快速发展,形成了轻量化、抗高过载、可变构型等结构技术特点。文章面向多任务敏捷响应、集群协同打击、单体能力提升、远程快速抵达、火力延伸等现代化战争任务,充分考虑智能化弹药结构技术发展需求,梳理了... 详细信息

近20年来智能化弹药结构技术快速发展,形成了轻量化、抗高过载、可变构型等结构技术特点。文章面向多任务敏捷响应、集群协同打击、单体能力提升、远程快速抵达、火力延伸等现代化战争任务,充分考虑智能化弹药结构技术发展需求,梳理了国内外智能化弹药结构技术的发展现状和关键技术创新。针对未来作战对智能化弹药发展的需求,明确了通用化、系列化、模块化的结构设计,小型化、轻量化集成的结构设计,低扰动、高动态、集束抛撒及分离,结构多功能一体化设计,抗高过载、高可靠的弹药结构设计及验证5个方面的技术发展方向,以期为未来智能化弹药火力打击体系的构建提供支撑。

关键词：智能化弹药结构技术多功能一体化设计变构型设计低成本设计

由美军作战概念出发的有人机/无人机智能协同作战解析

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无人系统技术 2020年第4期3卷 91-96页

作者：张旭东吴利荣肖和业郝明月尹航空军研究院北京100085 西北工业大学西安710072 海鹰航空通用装备有限责任公司北京100074

无人机正向着集群化、智能化、协同化不断发展,有人机/无人机智能协同作战作为其主要作战样式之一,推动无人机向主战装备迈进。从美军以分布式为特征的作战云、网络中心战、马赛克战、忠诚僚机、无人机蜂群等热点作战概念出发,对有人机... 详细信息

无人机正向着集群化、智能化、协同化不断发展,有人机/无人机智能协同作战作为其主要作战样式之一,推动无人机向主战装备迈进。从美军以分布式为特征的作战云、网络中心战、马赛克战、忠诚僚机、无人机蜂群等热点作战概念出发,对有人机/无人机智能协同作战与这些热点作战概念的内在联系进行了分析。结合美军正在进行的多个热点项目,提出了有人机/无人机智能协同作战关键技术体系,并对该概念的本质及内涵进行了解析。最后对该概念进行了SWOT分析,进一步明晰了该概念发展的优势、劣势、机遇和挑战,以期为我国有人机/无人机智能协同相关的作战概念及作战行动提供参考与借鉴。

关键词：无人机协同作战作战概念分布式作战马赛克战忠诚僚机 SWOT分析

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“回”形超构复合消声器的设计及研究

哈尔滨工程大学学报 2022年第9期43卷 1376-1382页

作者：赵亚林王绿马建刚杨涵杰徐靖鉴肖和业周杰国网陕西省电力有限公司电力科学研究院陕西西安710054 西北工业大学航空学院陕西西安710072 西北工业大学无人系统研究院陕西西安710072

为了提高变电站阻性矩阵消声器的中低频声学性能,本文基于管道声学和声学超材料理论,将“回”形空腔的中低频吸声特性和多孔材料的高频吸声特性进行了结合设计,提出了一种超构复合式消声器,对消声单元和矩阵消声器的声学性能进行了分析... 详细信息

为了提高变电站阻性矩阵消声器的中低频声学性能,本文基于管道声学和声学超材料理论,将“回”形空腔的中低频吸声特性和多孔材料的高频吸声特性进行了结合设计,提出了一种超构复合式消声器,对消声单元和矩阵消声器的声学性能进行了分析计算。仿真结果表明:在100~400 Hz的频段内,超构复合消声器较原有阻性消声器的降噪性能得到明显提升,并可降低14.7%的多孔材料使用率。

关键词：消声器降噪超构传声损失多孔材料穿孔板

Acetaminophen overdose-induced acute liver injury can be alleviated by static magnetic field

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Zoological Research 2024年第3期45卷 478-490页

作者： Han-xiao Chen Xin-Yu Wang Biao Yu Chuan-Lin Feng Guo-Feng Cheng Lei Zhang Jun-Jun Wang Ying Wang Ruo-Wen Guo Xin-Miao Ji Wen-Jing Xie Wei-Li Chen Chao Song Xin Zhang CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology High Magnetic Field LaboratoryHefei Institutes of Physical ScienceChinese Academy of SciencesHefeiAnhui 230031China Science Island Branch of Graduate School University of Science and Technology of ChinaHefeiAnhui 230026China Institutes of Physical Science and Information Technology Anhui UniversityHefeiAnhui 230601China

Acetaminophen(APAP),the most frequently used mild analgesic and antipyretic drug worldwide,is implicated in causing 46%of all acute liver failures in the USA and between 40%and 70%in *** predominant pharmacological intervention approved for mitigating such overdose is the antioxidant N-acetylcysteine(NAC);however,its efficacy is limited in cases of advanced liver injury or when administered at a late *** the current study,we discovered that treatment with a moderate intensity static magnetic field(SMF)notably reduced the mortality rate in mice subjected to high-dose APAP from 40%to 0%,proving effective at both the initial liver injury stage and the subsequent recovery *** the early phase of liver injury,SMF markedly reduced APAPinduced oxidative stress,free radicals,and liver damage,resulting in a reduction in multiple oxidative stress markers and an increase in the antioxidant glutathione(GSH).During the later stage of liver recovery,application of vertically downward SMF increased DNA synthesis and hepatocyte ***,the combination of NAC and SMF significantly mitigated liver damage induced by high-dose APAP and increased liver recovery,even 24 h post overdose,when the effectiveness of NAC alone substantially ***,this study provides a noninvasive non-pharmaceutical tool that offers dual benefits in the injury and repair stages following APAP *** note,this tool can work as an alternative to or in combination with NAC to prevent or minimize liver damage induced by APAP,and potentially other toxic overdoses.

关键词： Acetaminophen Acute liver injury Static magnetic fields Oxidative stress DNA synthesis

Serum from rabbit orally administered cobra venom inhibits growth of implanted hepatocellular carcinoma cells in mice

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World Journal of Gastroenterology 2003年第11期9卷 2441-2444页

作者： PengSun xiao-DaRen Hai-WeiZhang xiao-HongLi Shao-HuiCai Kai-heye xiao-KunLi DepartmentofClinicalPharmacology PharmacyCollegeJinanUniversityGuangzhou510632GuangdongProvinceChina DepartmentofPathology MedicalCollegeJinanUniversityGuangzhou510632GuangdongProvinceChina DepartmentofPharmacology PharmacyCollegeJinanUniversityGuangzhou510632GuangdongProvinceChina BiopharmaceuticalR&DCenterofJinanUniversity Guangzhou510632GuangdongProvinceChina

AIM: To investigate the inhibitory effect of serum preparation from rabbits orally administered cobra venom (SRCV) on implanted hepatocellular carcinoma (HCC) cells in ***: An HCC cell line, HepA, was injected into mice to prepare implanted tumors. The animals (n=30) were divided randomly into SRCV, 5-fluorouracil (5-FU), and distilled water (control) groups. From the second day after transplantation, 20 mg/kg 5-FU was administered intraperitoneally once a day for 9 days. SRCV (1 000 mg/kg)or distilled water (0.2 mL) was given by gastrogavage. Tumor growth inhibition was described by the inhibitory rate (IR).Apoptosis was detected by transmission electron microscopy (TEM), flow cytometry (FCM), and terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling (TUNEL).Student's t-test was performed for statistical ***: The tumor growth was inhibited markedly by SRCV treatment compared to that in the control group (P<0.01).The treatment resulted in a significant increase in the apoptotic rate of cancer cells by the factors of 10.5±2.4 %and 20.65±3.2 % as demonstrated through TUNEL and FCM assays, respectively (P<0.01). The apoptotic cells were also identified by characteristic ultrastructural features. CONCLUSION: SRCV can inhibit the growth of implanted HepA cells in mice, and the apoptosis rate appears to elevate during the process.

关键词：肝细胞癌眼镜蛇毒液肿瘤抑制动物实验细胞凋亡

《内蒙古民族大学学报》(自然科学版)2016-2020年载文信息分析

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内蒙古民族大学学报（自然科学版） 2021年第6期36卷 546-552页

作者：陈晓慧秋喜荷叶郑瑛内蒙古民族大学学报编辑部内蒙古通辽028043 内蒙古民族大学蒙古族历史文化与社会发展研究基地内蒙古通辽028043

以《内蒙古民族大学学报》(自然科学版)“十三五”规划期间(2016—2020年)共30期载文原始数据资料为研究对象,对该期刊载文量、发文作者、基金项目论文等进行统计分析,以期探究该刊载文内在规律,为其进一步提高办刊质量提供量化依据.结... 详细信息

以《内蒙古民族大学学报》(自然科学版)“十三五”规划期间(2016—2020年)共30期载文原始数据资料为研究对象,对该期刊载文量、发文作者、基金项目论文等进行统计分析,以期探究该刊载文内在规律,为其进一步提高办刊质量提供量化依据.结果显示,2016—2020年,《内蒙古民族大学学报》(自然科学版)共刊载论文589篇,平均信息密度为每印张3.41篇;独立作者为105篇,合著论文共484篇,平均合作度为3.52,平均合著率达82.17%;第一作者共有516人,其中,活跃作者共有48人,占作者总数的9.30%,共刊发121篇论文;中级职称和副高级职称作者及硕士研究生是该刊主要作者群;作者分布在中国、英国、蒙古国等3个国家,国内作者分布在全国21个省市,其中,内蒙古地区作者发文量最多,占论文总数的80.31%;内蒙古民族大学的作者及发文量最多,占作者总数的69.57%和论文总数的72.50%;各类基金项目文章共有545篇,占论文总数的92.53%,其中,国家级和省部级项目论文共514篇,占论文总数的87.27%.

关键词：内蒙古民族大学学报载文作者数据统计

Effect of Cryogenic Treatment on Properties of Cr8-Type Cold Work Die Steel

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Journal of Iron and Steel Research International 2010年第6期17卷 43-46,59页

作者： CHI Hong-xiao MA Dang-shen YONG Qi-long WU Li-zhi ZHANG Zhan-pu WANG Yong-wei Faculty of Materials Science and Engineering Kunming University of Science and Technology Kunming 650093 Yunnan China Institute for Structural Materials Central Iron and Steel Research Institute Beijing 100081 China heye Special Steel Co Ltd Shijiazhuang 050031 Hebei China

The effect of cryogenic treatment on the properties of Cr8-type cold work die steel was investigated. The results show that cryogenic treatment increases hardness by decreasing retained austenite, but the degree depends on the austenitizing temperature. When quenching at lower austenitizing temperature, the steel can obtain higher tough- ness by cryogenic treatment substituting conventional treatment process. Cryogenic time has little effect on cryogenic treatment. Conversely, cryogenic temperature has a great effect on cryogenic treatment and the effect of cryogenic treatment is more obvious with decreasing cryogenic temperature. In addition, deep cryogenic treatment improves the wear resistance by precipitating more homogeneous specific carbides.

关键词： cryogenic treatment tool steel cold work die steel property wear resistance

Effects of electrode configuration on electroslag remelting process of M2 high-speed steel ingot

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China Foundry 2019年第2期16卷 126-134页

作者： Fu-xing Yin Yu Liang Zhi-xia xiao Jian-hang Feng Zhi-bin Xie Yong-wang Mi School of Materials Science and Engineering Hebei University of Technology Research Institute for Energy Equipment Materials Hebei University of Technology Tianjin Key Laboratory of Materials Laminating Fabrication and Interfacial Controlling Technology heye Science and Technology Co. Ltd.

The electrode configuration determines the thermophysical field during the electroslag remelting(ESR) process and affects the final microstructure of the ingot. In this work, ingot with a diameter of 400 mm was prepared with two electrode configuration modes of single power ESR process, namely one electrode(OE) and two series-connected electrodes(TSCE). Finite element simulation was employed to calculate the electromagnetic field, flow field and temperature field of the ESR system. The results show that the temperature of the slag pool and the metal pool of the TSCE process is lower and more uniform than that of the OE *** calculated temperature distribution of the ingot could be indirectly verified from the shape of the metal pool by the experiment. The experimental results show that the depth of the metal pool in the OE ingot is about 160 mm, while the depth of the TSCE ingot is nearly 40 mm shallower than that of the OE ingot. Microstructural comparisons indicate that coarse eutectic carbides are formed in the center of the OE ingot, whereas more even eutectic carbides appear in the center of the TSCE ingot. In general, compared with the OE process, the TSCE process is preferred to remelt high speed steel ingots.

关键词： electroslag remelting metal pool shape electromagnetic field eutectic carbides high speed steel