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Numerical Analysis of Aerodynamic Characteristics of the HALE Diamond Joined-Wing Configuration UAV

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Journal of Harbin Institute of Technology(New Series) 2019年第6期26卷 31-45页

作者： Junlei Sun Heping Wang Zhou Zhou shan lei School of Aeronautic Northwestern Polytechnical UniversityXi'an 710072China R&D Center AVIC Xi'an Aircraft Industry(Group)Company Ltd.(China)Xi'an 710089China

The investigation on the aerodynamic characteristics of the high-attitude long-endurance (HALE) Diamond Joined-Wing configuration unmanned aerial vehicle ( UAV) was carried out by the theoretical analysis method and numerical simulation. Research indicates that as the wing of the UAV is composed of the front wing and the after wing, the after wing has the ability to transmit the front wing's boundary layer to the after wing root which can inhibit the front wing's flow separation. Although the front wing was affected by the retardation of the after wing, the aerodynamic performance of the front wing was better than that of alone front wing in most cases. The after wing was also affected by the wake and downwash of the front wing, and its aerodynamic performance was greatly decreased. The characteristic curve of the pitching moment of the UAV had nonlinear characteristics. The flow field structure of the after wing changed by the front wing wake direct sweep and flow separation at the after wing root were the main reasons that non-linear ′rise′phenomenon occurred in two segments ( α = 0° and α = 8° ) of the characteristic curve of pitching moment. Moreover, coupling of the flow separation characteristic of the front wing and the after wing resulted in the pitching moment ′pitchup′ phenomenon. The lateral-directional static stability of the flat layout was weak. The HALE Diamond Joined-Wing configuration UAV ' s aerodynamic performance can be improved and the problems in engineering applications can be effectively alleviated by adjusting the overall layout parameters.

关键词： Diamond Joined-Wing configuration HALE numerical simulation aerodynamic characteristic layout parameters

Case Report:Pure word deafness associated with extrapontine myelinolysis

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第11期11卷 842-847页

作者： Ren-jing ZHU Zhi-su LV Chun-lei shan Ming-wei XU Ben-yan LUO Department of Neurology the First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310029 China Department of Neurology Zhongshan Hospital Xiamen University Xiamen 361004 China Department of Ultrasonography Children's Hospital School of Medicine Zhejiang University Hangzhou 310029 China Laboratory for Higher Brain Function Institute of Psychology Chinese Academy of Sciences Beijing 100101 China Department of Rehabilitation Medicine the First Affiliated Hospital of Nanjing Medical University Nanjing 210029 China

Extrapontine myelinolysis and pure word deafness are very uncommon ***,we report a case of a 19-year-old woman who suffered from osmotic demyelination syndrome with coincidence of typical pure word *** a consequence of rapid correction of hyponatremia,the patient demonstrated an initial onset of cortical deafness,and then progressed to generalized auditory agnosia,which eventually developed into confined verbal auditory agnosia(pure word deafness) .Bilateral extrapontine myelinolysis was confirmed using brain magnetic resonance *** case suggests that verbal and nonverbal stimuli may involve separate thalamocortical pathways.

关键词： Pure word deafness Auditory agnosia Osmotic demyelination syndrome Extrapontine myelinolysis Cortical deafness

不同手术入路治疗肱骨远端冠状面骨折的临床疗效观察

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中华肩肘外科电子杂志 2024年第2期12卷 127-134页

作者：冷昆鹏孟钰童单磊刘洋周君琳首都医科大学附属北京朝阳医院骨科 100020

目的观察外侧、前外侧和后侧尺骨鹰嘴截骨入路治疗肱骨远端冠状面骨折的临床疗效,探讨不同骨折类型选择手术入路的适应证及注意事项。方法选取2010年1月至2023年1月本院收治的23例肱骨远端冠状面骨折患者作为研究对象,按照不同手术入路... 详细信息

目的观察外侧、前外侧和后侧尺骨鹰嘴截骨入路治疗肱骨远端冠状面骨折的临床疗效,探讨不同骨折类型选择手术入路的适应证及注意事项。方法选取2010年1月至2023年1月本院收治的23例肱骨远端冠状面骨折患者作为研究对象,按照不同手术入路分为外侧、前外侧和后侧尺骨鹰嘴截骨入路组,临床疗效观察包括手术时间、切口长度、出血量、骨折愈合时间、肘关节活动度、前臂旋转、Mayo肘关节评分(Mayo elbow performance score,MEPS)、视觉模拟评分(visual analogue scale,VAS)和并发症等。结果共23例患者,平均年龄(48.9±17.0)岁,平均受伤至手术时间(5.1±2.0)d,平均随访时间(18.4±5.4)个月。三组患者的受伤原因和骨折改良Dubberley分型的比较,存在显著性差异。三组患者在手术时间、骨折愈合时间、前臂旋前、前臂旋后、MEPS和VAS评分的结果比较,差异无统计学意义。截骨组与外侧组在出血量、切口长度、肘关节屈曲、伸直和活动度的比较,差异具有统计学意义。截骨组患者切口较长、手术出血量较多、肘关节活动度的恢复较差,截骨组和前外侧组、外侧组和前外侧组在这几项结果的比较,差异无统计学意义。结论外侧、前外侧和后侧尺骨鹰嘴截骨入路治疗肱骨远端冠状面骨折具有不同的适应证,应根据骨折类型选择合适的入路,适合截骨入路的骨折更复杂,功能锻炼应更加关注肘关节屈伸活动的恢复。

关键词：肱骨远端冠状面骨折手术入路内固定治疗肘关节功能

High depolarization temperature and superior piezoelectric performance with complex structural evolution in BiFeO_(3)-PbTiO_(3)-(Sr0.7Bi0.2,0.1)TiO_(3) systems

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Journal of Materiomics 2022年第6期8卷 1260-1268页

作者： Hongwei Shi Feng Li Xinliang Yang Mingsheng Long lei shan Chunchang Wang Jiwei Zhai Information Materials and Intelligent Sensing Laboratory of Anhui Province Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationInstitutes of Physical Science and Information TechnologyAnhui UniversityHefei230601China Laboratory of Dielectric Functional Materials School of Materials Science and EngineeringAnhui UniversityHefei230601China School of Materials Science&Engineering Tongji University4800 Caoan RoadShanghai201804China

Bismuth ferriteebased ferroelectric ceramics are considered strong competitors in highetemperature piezoelectric applications that benefits from their high depolarization temperature(Td),but problems of large conductivity and low piezoelectric coefficient(d33)should be ***_(3)ePbTiO_(3)ex(Sr0.7Bi0.2,0.1)TiO_(3)(BFePTexSBT)ternary system are designed in this work that successfully resolves this tough *** refinements show that this system exhibits multiphase coexistence with complex structural transition among rhombohedral,tetragonal and pseudocubic ***,a high Td~320℃ and d33~236℃/N are synergistically optimized in x=0.20 composition near pseudoephase boundary,which are indicated by multiescale techniques(phase structure,dielectric analysis etc.).What'smore,dual electrostrain peaks appear at separate phase boundaries for x=0.20 and 0.66 compositions with distinct piezo/ferroelectric *** law and piezoelectric force microscopy analysis clarify that the optimal electrostrain performance for both critical compositions are dominated by intrinsic(x=0.20)and extrinsic(x=0.66)contributions,*** work not only provides a new BFePTexSBT system with a high Td and superior d33 that are promising candidates in highetemperature actuator and sensor applications,but also presents a possibility of multiphaseecoexistence established exotic macroscopic performances.

关键词： BiFeO_(3)-based Piezoelectric Electrostrain Multiphaseecoexistence Domain switching

采动空间声电监测信号响应机制及冲击地压前兆特征分析

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煤炭科技 2024年第3期45卷 121-125页

作者：杨勇罗少军杨朋威单磊周蓉蓉内蒙古黄陶勒盖煤炭有限责任公司内蒙古鄂尔多斯017313

埋藏深度大、顶板存在坚硬厚岩层、煤层强度高和断层地质构造的煤层,具有一定的冲击危险性。以巴彦高勒煤矿正在进行回采的311305工作面作为示范回采工作面,对采动过程中以及顶板跨落前后的声电信号变化规律进行实时监测和采集,掌握煤... 详细信息

埋藏深度大、顶板存在坚硬厚岩层、煤层强度高和断层地质构造的煤层,具有一定的冲击危险性。以巴彦高勒煤矿正在进行回采的311305工作面作为示范回采工作面,对采动过程中以及顶板跨落前后的声电信号变化规律进行实时监测和采集,掌握煤岩动力事件发生前后声电监测信号的变化规律,从而指导井下安全生产工作的正常运行。

关键词：煤矿声电监测信号冲击地压

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极简基站智慧能源管理系统研究与应用

电信工程技术与标准化 2024年第9期37卷 58-63页

作者：帅农村张秀梅杨一帆单磊中国移动通信集团广东有限公司东莞分公司东莞523129 中国移动通信集团设计院有限公司北京100080 中国移动通信集团设计院有限公司广东分公司广州510623

极简基站通过BBU集中和电源室外化改造可有效节省基站空调电费和降低基站机房租赁费用。针对极简基站建设模式,本文提出了一种极简基站电源监控系统的解决方案,实现了对室外一体化电源的信息化管控,提升了移动通信网的运维效能。

关键词：极简基站室外一体化电源智慧能源管理系统

HDAC6 inhibitor loaded bimetallene nanosheets with antagonizing thermoresistance for augmented mild photothermal therapy

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中国化学快报:英文版 2023年第9期34卷 235-242页

作者： Lingyu Qiu shan lei Jing Zhang Ruhan Yan Wansi Chen Jing Lin Wei-Guo Zhu Peng Huang Guangdong Key Laboratory of Genome Instability and Human Disease Prevention Department of Biochemistry and Molecular BiologyShenzhen University Medical SchoolShenzhen 518055China Base for International Science and Technology Cooperation:Carson Cancer Stem Cell Vaccines R&D Center International Cancer CenterShenzhen University Medical SchoolShenzhen 518055China Marshall Laboratory of Biomedical Engineering International Cancer CenterLaboratory of Evolutionary Theranostics(LET)School of Biomedical EngineeringShenzhen University Medical SchoolShenzhen 518060China

Photothermal therapy(PTT)induces thermoresistance through cellular heat shock response,which impairs the therapeutic efficacy of the *** resolve this problem,we developed a photothermal theranostics(denoted as PMH),which integrated the photothermal conversion agent of PdMo bimetallene with histone deacetylase 6(HDAC6)selected inhibitor(ACY-1215),showing the synergistic antitumor effect both in vitro and in ***,under the photoacoustic imaging(PA)navigation,the released ACY-1215 triggered by NIR laser irradiation decrease the heat shock proteins(HSPs)expression and weaken the HDAC6-regulated HSP90 deacetylation,thus hindering the degradation of PTT-induced misfolded or unfold proteins through proteasome dependent ***,mild photothermal therapy(mPTT)treatment compromised the autophagy,which induced by HDAC6 inhibition,leading to mPTTinduced misfolded or unfold proteins further *** that inhibition of HDAC6 plus m PTT contribute to tumor *** study develops a promising combination strategy based on m PTT for future cancer treatment.

关键词： Mild photothermal therapy Thermoresistance Histone deacetylase 6 Heat shock proteins Autophagy

Construction of retroviral vector of p^(125FAK) specific ribozyme genes and its effects on BGC-823 cells

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World Journal of Gastroenterology 2006年第5期12卷 686-690页

作者： Guo-Xian Guan Hong-Xing Jian Dong-Yin lei Hui-shan Lu Xiang-Fu Zhang Department of Oncology Affiliated Union Hospital Fujian Medical University Fuzhou 350001 Fujian ProvinceChina

AIM： To construct the retroviral vector of p^125FAK specific ribozyme genes and to explore the feasibility of ribozyme in BGC-823 gene therapy in vitro. METHODS： A hammerhead ribozyme DNA targeting p^125FAK mRNA from nt 1010 to nt 1032 was synthesized and recombinated into the retroviral vector pLXSN forming pLRZXSN recon. Using the lipofectin-mediated DNA transfection technique, pLRZXSN was introduced into BGC-823 cells. The effects of ribozyme on the growth of BGC-823 cells and apoptosis were studied by cell colony assay, flow cytometry （FCM）, reverse transcriptasepolymerase chain reaction （RT-PCR）, detection of DNA fragmentation and electron microscopy. RESULTS： The number of BGC-823 cell colonies was inhibited by 56% after the cells were treated for 48 h. The cell proliferation was inhibited effectively by p^125FAK ribozyme and the inhibitory effect depended on the concentration and the time of incubation. The expression of p^125FAK mRNA and protein p^125 decreased sharply in BGC-823 cells treated with p^125FAK ribozyme. The characteristics of apoptosis, namely sub-G1 peak, DNA fragmentation and morphological changes, were revealed in BGC-823 cells treated with p^125FAK ribozyme. CONCLUSION： p^125FAK ribozyme decreases p^125FAK gene expression and induces apoptosis of human gastric cancer cells in vitro.

关键词： Ribozyme p^12SFAK gene Stomach neoplasm Apoptosis

Development of highly active coated monolith SCR catalyst with strong abrasion resistance for low-temperature application

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Frontiers of Environmental Science & Engineering 2015年第6期9卷 979-987页

作者： Lina GAN shan lei Jian YU Hongtao MA Yo YAMAMOTO Yoshizo SUZUKI Guangwen XU Zhanguo ZHANG State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China Materials Research Department Materials Research Laboratories Research and Development Group Meidensha Corporation 8-1 Osaki 2-Chome Shinagawa-ku Tokyo 141-8565 Japan National Institute of Advanced Industrial Science and Technology (AIST) Onogawa 16-1 Tsukuba 305-8569 Japan

Monolith SCR catalysts coated with V2Os- WO3/TiO2 were prepared by varying binder and coating thickness. Comparing with a monolith extruded with 100% V2O5-WO3/TiO2 powder, a coated monolith with a catalyst-coating layer of 260 μm in thickness exhibited the similar initial NOx reduction activity at 250℃. After 4 h abrasion （attrition） in an air stream containing 300 g. m^-3 fine sands （50-100μm） at a superficial gas velocity of 10m·s^-1, the catalyst still has the activity as a 100% molded monolith does in a 24-h activity test and it retains about 92% of its initial activity at 250℃. Estimation of the equivalent durable hours at a fly ash concentration of 1.0 g.m^-3 in flue gas and a gas velocity of 5 m.s^-1 demonstrated that this coated monolith catalyst is capable of resisting abrasion for 13 months without losing more than 8% of its initial activity. The result suggests the great potential of the coated monolith for application to de-NOx of flue gases with low fly ash concentrations from, such as glass and ceramics manufacturing processes.

关键词： coated monolith low-temperature denitration,abrasion resistance attrition