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Irradiation Behavior in High Entropy Alloys

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Journal of Iron and Steel Research International 2015年第10期22卷 879-884页

作者： Song-qin XIA Zhen WANG teng-fei yang Yong ZHANG State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing Institute for Science and Technology Information and Strategy Central Iron and Steel Research Institute State Key Laboratory of Nuclear Physics and Technology Center for Applied Physics and TechnologyPeking University

As an increasing demand of advanced nuclear fission reactors and fusion facilities, the key requirements for the materials used in advanced nuclear systems should encompass superior high temperature property, good behavior in corrosive environment, and high irradiation resistance, etc. Recently, it was found that some selected high entropy alloys （HEAs） possess excellent mechanical properties at high temperature, high corrosion resistance, and no grain coarsening and self-healing abil- ity under irradiation, especially, the exceptional structural stability and lower irradiation-induced volume swelling, compared with other conventional materials. Thus, HEAs have been considered as the potential nuclear materials used for future fission or fusion reactors, which are designed to operate at higher temperatures and higher radiation doses up to several hundreds of displacement per atom （dpa）. An insight into the irradiation behavior of HEAs was given, including fundamental researches to investigate the irradiation-induced phase crystal structure change and volume swelling in HEAs. In summary, a brief overview of the irradiation behavior in HEAs was made and the irradiation-induced structural change in HEAs may be relatively insensi- tive because of their special structures.

关键词： high entropy alloy irradiation behavior self-healing structure change volume swelling

Death from Fat Embolism after Lipectomy in a Patient with Madelung’s Disease

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Journal of Forensic Science and Medicine 2024年第2期10卷 148-151页

作者： Xing-An yang teng-fei yang Fu Zhang Jiang-Wei Kong Zi-Lin Meng Xin-Biao Liao Pei-Yu Liang Dong-Ri Li Department of Forensic Pathology School of Forensic MedicineSouthern Medical UniversityGuangzhouGuangdongChina Guangdong Public Security Department Forensic Pathology LabGuangzhouGuangdongChina

A 56-year-old man with a long history of alcoholism and a palpable raised mass about 23 cm×12 cm in size on his neck was diagnosed with Madelung’s disease(MD);the patient also had *** day 1,he underwent neck lipoma tissue resection and suddenly had dyspnea 9 h after the operation,which was followed by cardiac *** heart rate resuscitation,he developed a heartbeat,but he remained in a coma and died 9 days after the *** obvious pathological tracheal compression from a hematoma was observed while evaluating the patient’s neck on *** microscopy,the patient had an extensive pulmonary fat embolism,partial alveolar septal rupture and hemorrhage,and fat particles,and there was extensive infiltration of macrophages,which had phagocytosed fat particles,in the alveolar *** was also evidence of pulmonary infection and hypoxic-ischemic *** cause of death was postoperative pulmonary fat embolism resulting in pneumonia and central nervous system *** is the first report of a patient with MD who died of a fatal pulmonary fat embolism after neck lipoma tissue *** experts and clinicians should pay sufficient attention to this case.

关键词： Forensic pathology madelung’s disease pulmonary fat embolism

A method of elimination of undesired resonant points of microstrip antenna by cutting U-shaped slot on the ground

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Journal of Measurement Science and Instrumentation 2014年第2期5卷 80-82页

作者： teng fei CHENG Xiu-yang College of Electrical Engineering and Automation Shandong University of Science and Technology Qingdao 266590 China

A method is proposed to eliminate undesired resonant points of a dual-layer circular polarization microstrip antenna, the frequency of which is 2.42 GHz. The simulation results show that there are two undesired resonant points, the frequencies of which are both greater than the resonant frequency. One is around 4.4 GHz, while the other is around 5.8 GHz. As they would disturb the proper functioning of the antenna, the paper will eliminate the undesired resonant points by cutting U-shaped slots on the ground, Size of the slot is half of the wavelength of corresponding frequency point if slot is cut on the patch, while it is a quarter of the wavelength if there is a opening port on the slot. The simulation results show that it＇s effective to eliminate the undesired resonant points in this way.

关键词： resonant points microstrip antenna U-shaped slot simulation

MODIS数据辅助的GF-1影像晴空光合有效辐射反演

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农业工程学报 2017年第4期33卷 217-224页

作者：王利民刘佳杨玲波滕飞杨福刚邵杰中国农业科学院农业资源与农业区划研究所北京100081

面向农作物产量监测对中高分辨率遥感数据光合有效辐射(photosynthetically available radiation,PAR)反演的实际需求,该文选择山东省禹城市2014年1月至2014年12月共13景GF-1/WFV卫星影像作为数据源,基于中分辨率成像光谱仪(moderate-re... 详细信息

面向农作物产量监测对中高分辨率遥感数据光合有效辐射(photosynthetically available radiation,PAR)反演的实际需求,该文选择山东省禹城市2014年1月至2014年12月共13景GF-1/WFV卫星影像作为数据源,基于中分辨率成像光谱仪(moderate-resolution imaging spectroradiometer,MODIS)地表反射率产品作为辅助数据源,开发了适于业务运行的WFV数据气溶胶光学厚度(aerosol optical depth,AOD)及PAR的反演算法。算法核心是采用6S(second simulation of satellite signal in the solar spectrum)大气辐射传输模型,建立包括AOD在内的大气参数与查找表(look-up table,LUT),结合大气顶层太阳入射辐照度及卫星入瞳处辐射亮度值反演地表反射率数据,通过与WFV蓝光波段地表反射率数据对比获取大气参数。通过反演的大气参数计算400~700 nm连续光谱区间的PAR值,并建立WFV数据离散红、绿、蓝光波段与连续光谱区间PAR的转换系数,实现WFV数据PAR的反演。其中,WFV蓝光波段反射率数据与MODIS地表反射率数据关系、离散到连续谱段PAR的关系可以从美国地质勘探局(United States Geological Survey,USGS)提供的典型地物波谱库数据理论计算获取。利用中国生态系统研究网络(chinese ecosystem research network,CERN)禹城站地面观测值进行验证结果表明,该文提出的算法总体精度达到92.63%,平均绝对误差为14.56 W/m^2,平均相对误差7.37%,具有业务应用的潜力。

关键词：遥感辐射光谱分析光合有效辐射 GF-1 WFV 气溶胶光学厚度查找表

从“科玄论战”看20世纪中国文化的走向和发展

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淮南师范学院学报 2017年第4期19卷 25-28页

作者：滕菲杨有景广西师范大学马克思主义学院广西桂林541006

"科玄论战",是文化界在新文化时期关于哲学与科学最激烈的一场论战,在现代中国文化史上是一个具有深刻历史意义的文化事件。在这场论战中,科学主义、人文主义和马克思主义这三大文化思潮在展开了前所未有的思想碰撞。分析"科玄论战"的... 详细信息

"科玄论战",是文化界在新文化时期关于哲学与科学最激烈的一场论战,在现代中国文化史上是一个具有深刻历史意义的文化事件。在这场论战中,科学主义、人文主义和马克思主义这三大文化思潮在展开了前所未有的思想碰撞。分析"科玄论战"的起因及主要观点,对于研究20世纪中国文化的走向和发展具有重要的意义。

关键词：论战科学人生观中国文化

成人心脏乳头状弹力纤维瘤的临床和超声心动图特征

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中国医学影像技术 2017年第10期33卷 1497-1500页

作者：韩建成滕飞杨旭孙琳谷孝艳张烨赵映高爽何怡华首都医科大学附属北京安贞医院超声科北京100029 首都医科大学附属北京安贞医院病理科北京100029

目的探讨心脏乳头状弹力纤维瘤(CPF)的临床和超声心动图表现。方法回顾性分析经手术病理证实的13例CPF患者的临床表现、超声心动图特征、手术方式及预后。结果 13例患者临床表现不具特异性,为不同程度胸闷、气短等症状。所有肿瘤均为单... 详细信息

目的探讨心脏乳头状弹力纤维瘤(CPF)的临床和超声心动图表现。方法回顾性分析经手术病理证实的13例CPF患者的临床表现、超声心动图特征、手术方式及预后。结果 13例患者临床表现不具特异性,为不同程度胸闷、气短等症状。所有肿瘤均为单发,位于瓣膜9例(9/13,69.23%),其中主动脉瓣4例、二尖瓣3例、三尖瓣2例;位于心腔4例(4/13,30.77%),其中右心房2例、右心室1例、左心室1例。肿瘤最大径>2mm者8例,最大径≤2mm者5例。超声检出8例,未检出5例。8例接受肿瘤切除,5例接受瓣膜置换术。结论 CPF临床表现不特异,当肿瘤体积较小时,超声心动图常无法发现;心脏瓣膜为其常见部位,尤其是主动脉瓣。CPF预后良好。

关键词：心脏肿瘤乳头状弹力纤维瘤超声心动描记术

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温肾壮骨颗粒的干法制粒工艺研究

中草药 2018年第6期49卷 1324-1330页

作者：孙爱萍袁波李娜陈雅慧侯腾飞杨飞宋福江孙萍山东中医药大学山东济南250355 山东中医药大学附属医院山东济南250011

目的优选温肾壮骨颗粒(WZG)干法制粒的最佳工艺条件,提高生产效率,保证产品的质量和疗效。方法采用正交试验,以制粒的难易程度、颗粒的成型率和溶化性为评价指标确定辅料的种类及用量;通过单因素考察试验并结合Box-Behnken响应面法,以... 详细信息

目的优选温肾壮骨颗粒(WZG)干法制粒的最佳工艺条件,提高生产效率,保证产品的质量和疗效。方法采用正交试验,以制粒的难易程度、颗粒的成型率和溶化性为评价指标确定辅料的种类及用量;通过单因素考察试验并结合Box-Behnken响应面法,以送料速度、轧轮转速、轧轮压力为自变量,颗粒一次成型率为因变量,优化干法制粒工艺参数。结果最佳辅料配比为加入与干膏粉用量比为1∶3的糊精,1∶15的羧甲基淀粉钠,1∶90的微粉硅胶;最佳制粒工艺为轧轮压力9.5 MPa、轧轮转速14.0 Hz、送料速度13.2 Hz。通过3批放大工艺验证,显示优化后的辅料及工艺参数制备出的WZG具有成型率高、溶化性好、吸湿率低等优点。结论所选工艺合理、可行,为今后该产品的产业化应用提供技术参考和依据。

关键词：温肾壮骨颗粒干法制粒正交试验 Box-Behnken响应面优化成型率

Bounded Evaluation:Querying Big Data with Bounded Resources

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International Journal of Automation and computing 2020年第4期17卷 502-526页

作者： yang Cao Wen-fei Fan teng-fei Yuan University of Edinburgh Edinburg EH89ABUKUniversity of EdinburghEdinburg EH89ABUK Shenzhen Institute of Computing Sciences Shenzhen UniversityShenzhen 518060China Beijing Advanced Innovation Center for Big Data and Brain Computing Beihang UniversityBeijing 100191China

This work aims to reduce queries on big data to computations on small data,and hence make querying big data possible under bounded resources.A query Q is boundedly evaluable when posed on any big dataset D,there exists a fraction DQ of D such that Q(D)=Q(DQ),and the cost of identifying DQ is independent of the size of *** has been shown that with an auxiliary structure known as access schema,many queries in relational algebra(RA)are boundedly evaluable under the set semantics of *** paper extends the theory of bounded evaluation to RAaggr,i.e.,RA extended with aggregation,under the bag semantics.(1)We extend access schema to bag access schema,to help us identify DQ for RAaggr queries Q.(2)While it is undecidable to determine whether an RAaggr query is boundedly evaluable under a bag access schema,we identify special cases that are decidable and practical.(3)In addition,we develop an effective syntax for bounded RAaggr queries,i.e.,a core subclass of boundedly evaluable RAaggr queries without sacrificing their expressive power.(4)Based on the effective syntax,we provide efficient algorithms to check the bounded evaluability of RAaggr queries and to generate query plans for bounded RAaggr queries.(5)As proof of concept,we extend PostgreSQL to support bounded *** experimentally verify that the extended system improves performance by orders of magnitude.

关键词： Bounded evaluation resource-bounded query processing effective syntax access schema boundedness

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用于养殖蚯蚓的杏鲍菇菌糠饲料配方的优化

安徽农业科学 2017年第10期45卷 106-107,109页

作者：白腾飞刘阳杨月刘月芹任桂梅延安大学生命科学学院陕西延安716000 延安大学医学院陕西延安716000 陕西省区域生物资源保育与利用工程技术研究中心陕西延安716000

[目的]探究以杏鲍菇菌糠为主要原料养殖蚯蚓的最佳饲料配方。[方法]采用L_9(3~4)正交试验,研究在杏鲍菇菌糠中添加不同比例的玉米粉、豆粕、尿素对蚯蚓养殖效果的影响。[结果]蚯蚓繁殖和增重适宜的最佳饲料配方为玉米粉6.0%,豆粕5.0%,尿... 详细信息

[目的]探究以杏鲍菇菌糠为主要原料养殖蚯蚓的最佳饲料配方。[方法]采用L_9(3~4)正交试验,研究在杏鲍菇菌糠中添加不同比例的玉米粉、豆粕、尿素对蚯蚓养殖效果的影响。[结果]蚯蚓繁殖和增重适宜的最佳饲料配方为玉米粉6.0%,豆粕5.0%,尿素0.2%。此条件下,单盆繁殖数为19条,单盆增重为17.35 g。[结论]该研究结果可为杏鲍菇菌糠的综合利用提供依据。

关键词：杏鲍菇菌糠蚯蚓配方正交试验