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股骨粗隆间骨折术后下肢深静脉血栓并发症影响因素分析及Nomogram模型建立

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中国急救复苏与灾害医学杂志 2024年第6期19卷 807-810页

作者：赵宇宙杨利谦黄晓洁华北石油管理局总医院骨科河北任丘062552 河北省人民医院河北石家庄050051

目的探讨股骨粗隆间骨折手术后早期发生下肢深静脉血栓的危险因素,并进行Nomogram模型构建。方法选取2018年1月—2020年12月于华北石油管理局总医院行股骨粗隆间骨折手术的120例患者,术后早期发生下肢深静脉血栓13例。按照术后住院期间... 详细信息

目的探讨股骨粗隆间骨折手术后早期发生下肢深静脉血栓的危险因素,并进行Nomogram模型构建。方法选取2018年1月—2020年12月于华北石油管理局总医院行股骨粗隆间骨折手术的120例患者,术后早期发生下肢深静脉血栓13例。按照术后住院期间是否发生下肢深静脉血栓分为并发症组和无并发症组。采用多因素Logistics分析术后发生并发症的风险并构建Nomogram模型。结果并发症组患者住院时长、术后住院时间、治疗总费用均高于对照组,差异有统计学意义(P1 d是股骨粗隆间骨折术后下肢深静脉血栓的独立危险因素。本研究构建的Nomogram模型有助于指导医师完善个性化围手术期治疗方案。

关键词：股骨粗隆间骨折深静脉血栓并发症危险因素 Nomogram模型

Stacking and Twisting of Layered Materials Enabled by Screw Dislocations and Non-Euclidean Surfaces

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Accounts of Materials Research 2022年第3期3卷 369-378页

作者： yuzhou zhao Song Jin Department of Chemistry University of WisconsinMadisonMadisonWisconsin 53706United States

CONSPECTUS:The rise of van der Waals layered materials such as graphene,hexagonal boron nitride,and transition-metal dichalcogenides opens up enormous opportunities for exploring novel quantum phenomena at the two-dimensional(2D)atomic *** physical properties of van der Waals materials are often affected by the symmetry of the crystal *** example,breaking the inversion symmetry can lead to a variety of phenomena,such as second-harmonic generation,valley polarization,and *** symmetry and symmetry breaking of layered materials are determined by the atomic arrangements within the layer and the layer *** screw-dislocationdriven growth mechanism is general to 2D materials and can provide effective kinetic pathways to influence the layer stacking and generate diverse and complex layer stackings with different symmetry.

关键词： symmetry stacking breaking

城市地下空间工程大学生模型竞赛的设计与建造

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徐州工程学院学报（自然科学版） 2024年第2期39卷 57-67页

作者：姚韦靖赵玉州王杰郭贺林王湘吉安徽理工大学土木建筑学院安徽淮南232001

第六届高校城市地下空间工程专业大学生模型设计竞赛的主题为大跨度地下空间工程的设计与建造,要求使用白卡纸制作模型,具有足够的承载力和抗变形能力,且质量尽可能小.该文以安徽理工大学参赛作品为例,从材料力学性能、概念设计、理论... 详细信息

第六届高校城市地下空间工程专业大学生模型设计竞赛的主题为大跨度地下空间工程的设计与建造,要求使用白卡纸制作模型,具有足够的承载力和抗变形能力,且质量尽可能小.该文以安徽理工大学参赛作品为例,从材料力学性能、概念设计、理论计算、数值优化、制作工艺等方面,对模型结构进行了优化分析,最终完成模型加载试验,在承受满载20 kg时,模型结构沉降量仅为5.40 mm.模型设计竞赛作为培养大学生创新与动手能力的重要科技实践活动,是课堂教学的有益补充与延伸.

关键词：城市地下空间工程专业模型设计竞赛大跨度结构优化设计荷重比

Controlling the lateral and vertical dimensions of Bi2Se3 nanoplates via seeded growth

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Nano Research 2015年第1期8卷 246-256页

作者： Awei Zhuang yuzhou zhao Xianli Liu Mingrui Xu Youcheng Wang Unyong Jeong Xiaoping Wang Jie Zeng Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovation Center of Suzhou Nano Science and Technology Center of Advanced Nanocatalysis (CAN-USTC) & Department of Chemical Physics University of Science and Technology of China Hefei Anhui 230026 P. R. China Department of Materials Science and Engineering Yonsei University 134 Shinchon-dong Seoul Korea

Modulation of the morphology of nanostructures is often a rewarding but challenging task. We have employed the seeded growth method and induced kinetic control to synthesize Bi2Se3 nanoplates with modifiable morphology. By manipulating the rate at which precursor solutions were injected into seeds solution with syringe pumps, two distinctive growth modes could be realized. With a fast injection, the thickness of Bi2Se3 nanoplates slightly increased from N7.5 nm （seeds） to -9.5 nm while the edge length grew up from ~160 nm （seeds） to N12 ~tm, after 6 successive rounds of seeded growth. With a slow injection, the thickness and edge length increased simultaneously to -35 nm and -6 b^m after 6 rounds of growth, respectively. These two modes could be viewed as a competition between atomic deposition and surface migration. The products showed interesting, thickness-dependent Raman properties. In addition, NIR transparent, highly conductive and flexible Bi2Se3 thin films with different thicknesses were constructed by the assembly of the as-synthesized Bi2Se3 nanoplates. This approach based on seeded growth and kinetic control can significantly promote the development of versatile nanostructures with diverse morphology.

关键词： bismuth selenide nanoplates seeded growth kinetic control

Minerals in edible insects:a review of content and potential for sustainable sourcing

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Food Science and Human Wellness 2024年第1期13卷 65-74页

作者： Mingxing Lu Chenxu Zhu Sergiy Smetana Ming zhao Haibo Zhang Fang Zhang yuzhou Du College of Plant Protection&Institute of Applied Entomology Yangzhou UniversityYangzhou 225009China German Institute of Food Technologies(DIL e.V.) Quakenbrück D-49610Germany Jiangsu Plant Protection and Plant Quarantine Station Nanjing 210036China Joint International Research Laboratory of Agriculture and Agri-Product Safety Yangzhou UniversityYangzhou 225009China

In response to the rapid increase in world population and subsequent demands for food,edible insects represent an alternative food source for humans that is rich in proteins,amino acids and *** is a tradition in many countries including China and Thailand,and edible insects have attracted a lot of attention in Western World due to their suitable nutrient composition,high mineral content(e.g.,Fe,Zn,Ca,Mg)and potential use as a supplement in human *** this study,we surveyed mineral content in seven insect orders and 67 species of mass produced and wild-harvested edible *** total content of essential elements in edible insects was very high in Tenebrio molitor,Bombyx mori,and Zonocerus *** heavy metal content(summarized for eight species)was below the maximum limit allowed for safe *** supply of minerals derived from insect biomass is complicated due to the high variations of mineral content in insects and the potential of its change due to processing.

关键词： Edible insects Minerals Nutrition Food safety Sustainability

Traceless photodegradable polymer cocoons for universal protein delivery and light-controlled gene editing

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Science China Chemistry 2024年第2期67卷 664-676页

作者： Huaibin Yu Meron Tsegay Kifle Lili Chen Feihong Xiong Yan Zhang Shangbang Gao Wei Hou Shuliang Chen Weining zhao yuzhou Wu Hubei Engineering Research Center for Biomaterials and Medical Protective Materials Hubei Key Laboratory of Bioinorganic Chemistry&Materia MedicaKey Laboratory of Material Chemistry for Energy Conversion and StorageMinistry of EducationSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology(HUST)Wuhan430074China Zhengzhou Research Institute Harbin Institute of TechnologyZhengzhou450000China College of Life Science and Technology Huazhong University of Science and Technology(HUST)Wuhan430074China Institute of Medical Virology School of Basic Medical SciencesWuhan UniversityWuhan430071China College of Pharmacy Shenzhen Technology UniversityShenzhen518118China

Polymer conjugation was found highly valuable in clinic to improve the bioavailability of protein ***,it is still a tremendous challenge to achieve a complete release of original proteins from the conjugated hybrid under external stimulus to recover active proteins in the targeted ***,we report a general light-controlled protein delivery methodology by weaving a photodegradable polymer cocoon around proteins,which could reliably protect them from degradation in the dark while efficiently releasing them under illumination without any residual *** surface charge of the polymer shell is easily tunable to facilitate efficient cell *** versatility of this strategy is demonstrated by the delivery of the Cas9/sg RNA complex that realized light-controlled gene editing both in vitro and in vivo,and such repertoire is of particular value in regard to minimizing the off-target toxicity of CRISPR-Cas9-based gene therapy.

关键词： photodegradable polymer-protein conjugate protein delivery light control gene editing

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1例经肛回肠脱垂病例报告

结直肠肛门外科 2024年第3期30卷 379-383,388页

作者：李勇骑牛明了张龙江赵玉洲程艺伟唐诚馨王晓雯河南中医药大学第二临床医学院河南郑州450002 河南省中医院肛肠科河南郑州450002 河南省肿瘤医院普外科河南郑州450003

直肠脱垂术后复发是临床关注的问题,术后复发性直肠脱垂患者的再次手术治疗需要综合患者因素、手术特点和手术风险、医师团队的临床实践经验等方面的情况来选择手术方案,以减轻患者对于手术治疗的心理负担和提升患者对于手术治疗的满意... 详细信息

直肠脱垂术后复发是临床关注的问题,术后复发性直肠脱垂患者的再次手术治疗需要综合患者因素、手术特点和手术风险、医师团队的临床实践经验等方面的情况来选择手术方案,以减轻患者对于手术治疗的心理负担和提升患者对于手术治疗的满意度。笔者团队收治了1例经肛回肠脱垂患者,其曾因复发性直肠脱垂反复接受手术治疗。该患者在回肠脱出于肛门外之后接受了回肠系膜折叠+末端回肠系膜悬吊固定+肛门环缩术治疗,术后1年内未再诉肛内肿物脱出。本文报告该患者的临床诊治过程,与同道交流。

关键词：回肠脱垂复发性直肠脱垂 Altemeier术回肠系膜折叠术

叶尖小翼结合凹槽对跨声速压气机转子间隙流场的影响

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工程热物理学报 2022年第7期43卷 1859-1869页

作者：韩少冰赵傲赵毓舟钟兢军大连海事大学船舶与海洋工程学院大连116026 上海海事大学商船学院上海201306

为了揭示叶尖小翼结合叶顶凹槽对跨声速压气机转子气动性能的影响机理,采用数值模拟方法研究了NASA Rotor35附加不同凹槽型叶尖小翼的气动特性,并在分析Rotor35失稳机制的基础上探究了叶尖小翼结合叶顶凹槽的扩稳机理。研究结果表明:不... 详细信息

为了揭示叶尖小翼结合叶顶凹槽对跨声速压气机转子气动性能的影响机理,采用数值模拟方法研究了NASA Rotor35附加不同凹槽型叶尖小翼的气动特性,并在分析Rotor35失稳机制的基础上探究了叶尖小翼结合叶顶凹槽的扩稳机理。研究结果表明:不同深度的凹槽型小翼均使得压气机转子总压比和等熵效率有所降低。随着凹槽深度的增加,压气机转子失速裕度先增大后减小,存在最佳深度的凹槽型小翼使压气机转子失速裕度增加5.4%。凹槽型小翼方案中压气机转子叶尖负荷降低,叶尖泄漏涡强度减弱,转子叶尖通道激波后移,叶尖泄漏涡与激波干涉后发生螺旋型破裂,降低了波/涡干涉所导致的通道堵塞程度及抑制了叶片吸力面附面层分离是其扩稳的机制所在。

关键词：叶尖小翼叶顶凹槽跨声速压气机转子间隙流场数值模拟

Research on Critical Flow of Water under Supercritical Pressures in Nozzles

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Journal of Energy and Power Engineering 2012年第2期6卷 201-208页

作者： yuzhou Chen Minfu zhao Chunsheng Yang Keming Bi Kaiwen Du Shuming Zhang China Institute of Atomic Energy Beijing 102413 China

An experiment on critical flow of water was conducted in two nozzles of 1.41 mm in diameter and 4.35 mm in length with rounded-edge and sharp-edge respectively, covering the ranges of inlet pressure of 22.1-29.1 MPa and inlet temperature of 38-474 ℃. More than 200 data points were obtained and the characteristics and parametric trends were investigated. In the region of near and beyond pseudo-critical temperature the thermal-equilibrium is dominant, and the flow rate can be estimated by the modified homogeneous equilibrium model. In the below pseudo-critical region the results exhibit scattered feature as a result of hysteresis effect in the onset of vaporization, characterizing a bifurcation behavior. This effect is more significant in the nozzle with sharp-edge, especially at higher pressure. For temperature well below the pseudo-critical point, the flow is not at critical condition and the flow rate can be represented by the Bernoulli equation reasonably.

关键词： Critical flow choking nozzle supercritical pressure thermal-equilibrium reactor safety.