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Topology optimization of modular structures with multiple assemblies and applications to airborne shelves

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Chinese Journal of Aeronautics 2024年第4期37卷 321-332页

作者： Jie wang Tong GAO Ming LI Jihong ZHU longlong SONG Weihong ZHANG State IJR Center of Aerospace Design and Additive Manufacturing Northwestern Polytechnical UniversityXi’an 710072China Beijing Specialized Machinery Institute Beijing 100143China

This work is devoted to the aeronautical application of topology optimization for modular structures with multiple assemblies that consist of repeated standard modules and optional *** kinds of structures are widely used owing to their transportability,reconfigurability,low manufacturing and service *** this work,the design of airborne shelves with modular structures characterized by the standard module configuration is formulated for the first time as a topology optimization problem of multiple assemblies and multiple load cases subjected to the volume *** is shown that the weighted compliance design of multiple assemblies is a compromising solution compared to the optimization result of each individual assembly of standard ***,the performance of optimized airborne shelves with the modular structures can effectively be ameliorated with the help of reinforcements.

关键词： Topology optimization Modular structures Multiple assemblies Standard modules Airborne shelves

Use of Different Murder Weapons by a Single Murderer:Two Case Reports

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Journal of Forensic Science and Medicine 2016年第3期2卷 160-163页

作者： Eradil Orazhkan Tao Pu longlong wang Zhimin wang Zhiwei Zhu Rufeng Bai Institute of Criminal Science and Technology of Public Security Bureau in Karamay City Xinjiang Uygur Autonomous RegionKaramay834000 The 2011 Collaborative Innovation Center of Judicial Civilization The Key Laboratory of Ministry of EducationChina University of Political Science and LawBeijing 100088P.R.China

Homicide is an extremely serious crime,and although the offender usually uses the same weapon to initially injure and complete the killing,there are *** report two cases in which a single murderer killed a victim using different weapons and summarize several situations in which a murderer might use different weapons to *** number of murders should be determined and estimated after a comprehensive complicated investigation of the scene,careful examination of the victim’s injuries,and evaluation of evidence reported by eyewitnesses.

关键词： Homicide injury‑causing weapon victim

Optical identification of interlayer coupling of graphene/MoS_(2) van der Waals heterostructures

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Nano Research 2021年第7期14卷 2241-2246页

作者： Mingming Yang longlong wang Guofeng Hu Xue Chen Peng Lai Gong Xin Cong Yi Liu Yuanbo Yang Xiaoli Li Xiaohui Zhao Xuelu Liu National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices&Hebei Key laboratory of Optic-electronic Information and Materials College of Physics Science and TechnologyHebei UniversityBaoding 071002China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China State Key Laboratory of Superlattices and Microstructures Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Department of Physics Southern University of Science and TechnologyShenzhen 518055China

The interlayer coupling in van der Waals(vdW)heterostructures(vdWHs)is at the frontier of the fundamental research,underlying many optical *** graphene/MoS_(2) vdWHs provide an ideal platform to reveal the good interfacial coupling between graphene and MoS_(2) ***,three groups of graphene/MoS_(2) vdWHs were prepared by transferring 1–3 layers of graphene onto monolayer MoS_(2).The interlayer coupling within graphene/MoS_(2) vdWHs were characterized and analyzed by Raman spectroscopy,photoluminescence(PL)spectroscopy and optical contrast(OC)*** upshift of the A_(1g) peak of MoS_(2) and the upshift of the D and 2D peaks of SLG show that the electrons move from MoS_(2) to graphene accompanied by the dielectric shielding effect on *** weakened PL intensities and the slight red shift of A peak prove that the electrons move from MoS_(2) to graphene meanwhile the recombination of hole and electron pairs is blocked in *** results deepen the understanding of the interlayer coupling of graphene/MoS_(2) vdWHs and therefore provide guidelines for the practical design and application of optoelectronic devices based on graphene/MoS_(2) vdWHs.

关键词： graphene/MoS_(2)vdWHs Raman spectroscopy PL spectroscopy OC spectroscopy dielectric shielding effect interlayer coupling

养血益睛汤改善早期年龄相关性黄斑变性作用探究

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中医药临床杂志 2024年第1期36卷 152-155页

作者：王龙龙孟磊刘信秋张利生韩子嫚安徽省亳州市中医院安徽亳州236800

目的:探究养血益睛汤改善早期年龄相关性黄斑变性的作用及其对脉络膜的影响。方法:50例患者随机分为观察组和对照组,观察组25例采用口服中药养血益睛汤治疗,对照组25例予补充维生素C治疗。2组均治疗4周,观察2组患者视力恢复情况、2组治... 详细信息

目的:探究养血益睛汤改善早期年龄相关性黄斑变性的作用及其对脉络膜的影响。方法:50例患者随机分为观察组和对照组,观察组25例采用口服中药养血益睛汤治疗,对照组25例予补充维生素C治疗。2组均治疗4周,观察2组患者视力恢复情况、2组治疗前后中心黄斑厚度及黄斑中心凹脉络膜厚度的变化及2组的临床疗效。结果:2组治疗后ETDRS字母数均优于治疗前(P0.05),2组治疗后SFCT均优于治疗前(P0.05),观察组治疗前后SFCT差值优于对照组(P<0.05);观察组临床疗效优于对照组(P<0.05)。结论:中药养血益睛汤治疗早期AMD有良好的临床疗效,能改善患者的视觉质量、增加黄斑中心凹脉络膜的厚度。

关键词：中药养血益睛汤年龄相关性黄斑变性玻璃膜疣脉络膜

Glucose-sensitive acetylation of Seryl tRNA synthetase regulates lipid synthesis in breast cancer

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Signal Transduction and Targeted Therapy 2021年第9期6卷 2831-2842页

作者： Jin Zhao Hangming Bai Xiaoyu Li Jie Yan Gengyi Zou longlong wang Xiru Li Ze Liu Rong Xiang Xiang-Lei Yang Yi Shi School of Medicine Nankai UniversityTianjinChina Department of General Surgery Chinese PLA General HospitalBeijingChina The Scripps Research Institute La JollaCAUSA

Abnormally enhanced de novo lipid biosynthesis has been increasingly realized to play crucial roles in the initiation and progression of varieties of cancers including breast ***,the mechanisms underlying the dysregulation of lipid biosynthesis in breast cancer remain largely ***,we reported that seryl tRNA synthetase(SerRS),a key enzyme for protein biosynthesis,could translocate into the nucleus in a glucose-dependent manner to suppress key genes involved in the de novo lipid *** normal mammary gland epithelial cells glucose can promote the nuclear translocation of SerRS by increasing the acetylation of SerRS at lysine *** SerRS knock-in mice bearing acetylation-defective lysine to arginine mutation.

关键词： breast cancer synthesis

慢性阻塞性肺疾病患者焦虑与脑功能活动异常的相关性研究

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实用临床医药杂志 2024年第8期28卷 79-82页

作者：马洪鸽王龙龙成莎王亮亮高延忠马静文李娜王警建李小娥陕西省西安市第九医院医学影像中心陕西西安710054 陕西省西安市第九医院呼吸与危重症医学科陕西西安710054 陕西省西安市第九医院药剂科静脉配液中心陕西西安710054

目的分析慢性阻塞性肺疾病(COPD)患者长期慢性低氧状态下的焦虑症状与脑功能活动异常的相关性。方法前瞻性选择21例COPD合并焦虑患者为COPD组,并选取26例性别、年龄相匹配的健康人群为对照组。2组患者均行高分辨率3D-T1加权成像(3D-T1WI... 详细信息

目的分析慢性阻塞性肺疾病(COPD)患者长期慢性低氧状态下的焦虑症状与脑功能活动异常的相关性。方法前瞻性选择21例COPD合并焦虑患者为COPD组,并选取26例性别、年龄相匹配的健康人群为对照组。2组患者均行高分辨率3D-T1加权成像(3D-T1WI)、T2-液体衰减反转恢复(T2-FLAIR)及血氧水平依赖(BOLD)序列检查,应用DPARSF及SPM8软件对2组脑低频振幅(ALFF)值进行分析。结果COPD组患者左海马旁回-扣带回ALFF值增高,右额上回ALFF值减低,差异有统计学意义(P<0.05);Pearson相关性分析发现,右额上回ALFF值与焦虑评分呈负相关(r=-0.485,P=0.03)。结论COPD慢性低氧患者存在右额上回的脑功能活动损害,损害程度与焦虑症状呈正相关,并且可能存在海马旁回-扣带回的脑功能活动代偿性增强。

关键词：慢性阻塞性肺疾病低氧焦虑磁共振成像血氧水平低频振幅

Geochronology and Petrogenesis of Late Carboniferous to Early Permian Basalts in the Central Lhasa Subterrane, Southern Tibet: Implications for the Evolution of the Sumdo Paleo-Tethys Ocean

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Acta Geologica Sinica(English Edition) 2024年第4期98卷 955-968页

作者： MA wang LIU Yingchao YANG Zhusen Jan-Marten HUIZENGA LI Zhenqing YUE longlong ZHAO Sibo School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China Institute of Geology Sinoprobe LaboratoryChinese Academy of Geological SciencesBeijing 100037China MLR Key Laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological SciencesBeijing 100037China Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life SciencesNO-1432ÅsNorway Economic Geology Research Centre(EGRU) College of Science and EngineeringJames Cook UniversityTownsvilleQueensland 4811Australia Department of Geology University of JohannesburgAuckland Park 2006South Africa

Basalts from the Late Carboniferous to Early Permian are extensively developed in the central Lhasa subterrane, southern Tibet. Studying the petrogenesis of these rocks may have implications for the late Paleozoic arc magmatism along the central Lhasa subterrane uncovering more of the evolution of the Sumdo Paleo-Tethys Ocean and its dynamic mechanism. Basalt samples from the Luobadui Formation in the Leqingla area, NW of Linzhou City in the central Lhasa subterrane, southern Tibet exhibit arc-like geochemical signatures in a subduction-zone tectonic setting characterized by high Al_(2)O_(3) and low TiO_(2) contents, fractionated REE patterns with low Nb/La ratios and high LREE concentrations, and negative HFSE anomalies. Based on their higher Th/Ce, Nb/Zr, and lower Ba/Th, Pb/Nd ratios, slightly negative to positive ε_(Nd)(t) values, and the relatively high Sr-Pb isotopic compositions, these samples were probably derived from partial melting of a depleted mantle source of garnet + spinel lherzolite, metasomatized by subducted sediments around 297 Ma. Modeling of the trace elements indicates that these basalts experienced fractional crystallization of olivine, clinopyroxene and minor plagioclase during magma ascent and eruption. It is proposed that these Late Carboniferous–Early Permian basalts are associated with the northward subduction of the Sumdo Paleo-Tethys Ocean seafloor along the southern margin of the central Lhasa subterrane.

关键词： geochemistry northward subduction Sumdo Paleo-Tethys Ocean Lhasa terrane Tibet

A review on the chemo-catalytic conversion of cellulose to bio-ethanol

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Green Chemical Engineering 2024年第3期5卷 276-289页

作者： Xiuzheng Zhuang Haiyong wang Shugen Jiang Xiaohong Hu Tong Su Xinghua Zhang longlong Ma Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and EnvironmentSoutheast UniversityNanjing210096China Key Laboratory of Renewable Energy Guangzhou Institute of Energy ConversionChinese Academy of SciencesGuangzhou510640China Wuzhou Refrigeration Group Co.Ltd. Nanjing211100China

While the industry has produced sugar-derived ethanol from the conventional method of fermentation for hundreds of years,other effective routes involving the direct transformation of carbohydrates still remain extremely *** recently,an innovative chemo-catalytic method driven by the aqueous-phase catalysis was created for the synthesis of cellulosic ethanol,making a great breakthrough in the common ways as it can theoretically utilize all of the carbon atoms in sugars with faster kinetics;up to now,results from the relevant studies have been accumulated to a certain extent,but the periodic conclusions in this field are unfortunately *** this reason,this work tries to offer an overview of the cellulosic ethanol produced by chemo-catalytic routes,highlighting the present knowledge in relation to the technical efficiency,catalytic mechanisms as well as practical *** first,the advanced progress on the increasing efficiency from a varied type of catalytic systems are extensively discussed,which involves the specific functions of hybrid components from different strategies;meanwhile,the general influences of processing conditions,such as the hydrothermal severity and aqueous environments,are also ***,possible mechanisms behind the chemo-catalytic processes are widely elaborated by analyzing a number of experimental cases associated with the reaction network and its kinetic *** that,the actual effects of this technique on the real biomass are collected to identify the positive/negative interactions between multiple components,together with the potential solutions on the semi-continuous processes of pilot scale *** techno-economic analysis(TEA)is also calculated and compared with other similar methods,such as fermentation and ***,several proposals aimed at upgrading the whole chain of chemo-catalytic processes are clearly provided,which may function as a guideline for future studies on the pr

关键词： Cellulosic ethanol Chemo-catalytic method Influencing factors Catalytic mechanism Techno-economic analysis

甲状腺切除术后局部应用氨甲环酸减少引流量的效果观察

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中国医师进修杂志 2024年第5期47卷 456-460页

作者：罗志委吉鸿利连金山陈雅梅高江常佳奇王龙龙内蒙古科技大学包头医学院研究生院包头014060 包头市肿瘤医院头颈二科包头014030

目的探讨甲状腺切除术后局部喷洒氨甲环酸减少引流量的效果和安全性。方法采用随机双盲安慰剂对照研究方法,选取2022年12月至2023年8月包头市肿瘤医院择期行甲状腺切除术患者64例,按随机数字表法分为氨甲环酸和对照组,每组32例。术中关... 详细信息

目的探讨甲状腺切除术后局部喷洒氨甲环酸减少引流量的效果和安全性。方法采用随机双盲安慰剂对照研究方法,选取2022年12月至2023年8月包头市肿瘤医院择期行甲状腺切除术患者64例,按随机数字表法分为氨甲环酸和对照组,每组32例。术中关闭创面前,氨甲环酸组采用25 mg/ml氨甲环酸注射液16 ml冲洗创面,局部喷洒氨甲环酸注射液1 ml(含氨甲环酸100 mg);对照组采用灭菌注射用水16 ml冲洗创面,局部喷洒灭菌注射用水1 ml,随即夹闭引流管20 min。记录术后第1~4天颈部引流量、并发症;术前和术后1 d检测C-反应蛋白水平。结果每组各有2例患者中途退出研究。氨甲环酸组术后第1、2和3天引流量及总引流量明显少于对照组[(29.10±8.04)ml比(38.50±8.67)ml、(18.00±7.33)ml比(27.20±10.66)ml、(10.70±5.75)ml比(14.60±6.83)ml和(69.20±24.48)ml比(96.70±31.90)ml],差异有统计学意义(P0.05)。两组患者术前和术后C反应蛋白比较差异无统计学意义(P>0.05)。对照组术后出现发热(体温37.5℃)1例;两组均未发生肌间血栓、静脉血栓、切口感染及切口延迟愈合等并发症。结论甲状腺切除术后局部应用氨甲环酸可以减少术后引流量,且并未增加血栓、感染和延迟愈合等相关风险。

关键词：甲状腺切除术氨甲环酸引流量局部用药