检索结果-南通市图书馆

Light(Science & Applications) 2024年第6期13卷 1159-1169页

作者： Yufan Kang Yongfeng Pei Dong He Hang Xu Mingjun Ma jialu yan Changzhong Jiang Wenqing Li Xiangheng Xiao School of Physics and Technology Key Lab of Artificial Micro-and Nano-Structures of Ministry of EducationWuhan UniversityWuhanChina

The construction of lateral p-n junctions is very important and challenging in two-dimensional(2D)semiconductor manufacturing *** researches have demonstrated that vertical p-n junction can be prepared simply by vertical stacking of 2D ***,interface pollution and large area scalability are challenges that are difficult to overcome with vertical stacking *** 2D lateral p-n homojunction is an effective strategy to address these *** selective p-type doping of 2D semiconductors is expected to construct lateral p-n *** this work,we have developed a low-energy ion implantation system that reduces the implanted energy to 300 ***-energy implantation can form a shallow implantation depth,which is more suitable for modulating the electrical and optical properties of 2D ***,we utilize low-energy ion implantation to directly dope nitrogen ions into few-layer WS_(2) and successfully realize a precise regulation for WS_(2) with its conductivity type transforming from n-type to bipolar or even p-type ***,the universality of this method is demonstrated by extending it to other 2D semiconductors,including WSe_(2),SnS_(2) and MoS_(2).Based on this method,a lateral WS_(2) p-n homojunction is fabricated,which exhibits significant rectification characteristics.A photodetector based on p-n junction with photovoltaic effect is also prepared,and the open circuit voltage can reach to 0.39 *** work provides an effective way for controllable doping of 2D semiconductors.

关键词： implantation doping Spatial

Design,preparation,and characterization of a novel ZnO/CuO/Al energetic diode with dual functionality:Logic and destruction

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2024年第4期34卷 57-68页

作者： jialu yang Jiaheng Hu Yinghua Ye Jianbing Xu yan Hu Ruiqi Shen School of Chemistry and Chemical Engineering Nanjing University of Science and TechnologyNanjing 210094China Micro-Nano Energetic Devices Key Laboratory of MIIT Nanjing 210094China Institute of Space Propulsion Nanjing University of Science and TechnologyNanjing 210094China

Self-destructing chips have promising applications for securing *** paper proposes a new concept of energetic diodes for the first time,which can be used for self-destructive chips.A simple two-step electrochemical deposition method is used to prepare ZnO/CuO/Al energetic diode,in which N-type ZnO and P-type CuO are constricted to a PN *** paper comprehensively discusses the material properties,morphology,semiconductor characteristics,and exploding performances of the energetic *** results show that the energetic diode has typical rectification with a turn-on voltage of about 1.78 V and a reverse leakage current of about 3×10^(-4)*** a constant voltage of 70 V loads to the energetic diode in the forward direction for about 0.14 s or 55 V loads in the reverse direction for about 0.17 s,the loaded power can excite the energetic diode exploding and the current rises to about100 *** to the unique performance of the energetic diode,it has a double function of rectification and *** energetic diode can be used as a logic element in the normal chip to complete the regular operation,and it can release energy to destroy the chip accurately.

关键词： Energetic diode ZnO—CuO—Al thermite ZnO/CuO PN junction Electrical explosion performance Self-destructing chips

Preventive effects of Bifidobacterium lactis Probio-M8 on ovalbumin-induced food allergy in mice

在线全文

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2024年第4期13卷 2346-2352页

作者： jialu Shi yan Xu Cheng Liu Shizhi Wang Jin Wang Vijaya Raghavan Key Laboratory of Environmental Medicine and Engineering Ministry of Educationand Department of Nutrition and Food HygieneSchool of Public HealthSoutheast UniversityNanjing 210009China Department of Bioresource Engineering Faculty of Agricultural and Environmental SciencesMcGill UniversitySainte-Anne-de-BellevueQC H9X3V9Canada

Food allergy is a significant public health concern *** probiotics have been found to enhance food allergy by regulating immune-microbe interactions in animal models and ***,the effects of Bifidobacterium lactis Probio-M8 on food allergy have not been thoroughly *** present study examined the anti-allergic properties of Probio-M8,particularly in relation to immune response and gut microbiota *** demonstrate that oral administration of Probio-M8 effectively mitigated the allergy symptoms triggered by ovalbumin(OVA)by ameliorating the morphological damage in the jejunum,reducing OVA-specific IgE and histamine levels in the serum,and suppressing Th2 cytokines(interleukin(IL)4 and IL-13)while increasing Th1 cytokines(interferon(IFN)γ)and regulatory T(Treg)cytokines(IL-10 and transforming growth factor(TGF)β1)in the culture supernatants of splenic ***,Probio-M8 effectively altered the diversity and composition of gut microbiota,particularly the relative abundances of Akkermansia_muciniphila in OVA-induced *** to the OVA group,the Probio-M8 group showed a decrease in the relative abundance of Akkermansia_*** conclusion,Probio-M8 demonstrates the potential to alleviate food allergy by regulating the Th1/Th2 response and modulating gut microbiota,thereby offering a novel therapeutic strategy for patients with food allergy.

关键词： Food allergy Bifidobacterium lactis Probio-M8 T cell immune response Gut microbiota

Interorgan communication in neurogenic heterotopic ossification: the role of brain-derived extracellular vesicles

在线全文

学校读者我要写书评

暂无评论

Bone Research 2024年第1期12卷 137-152页

作者： Weicheng Lu Jianfei yan Chenyu Wang Wenpin Qin Xiaoxiao Han Zixuan Qin Yu Wei Haoqing Xu jialu Gao Changhe Gao Tao Ye Franklin R.Tay Lina Niu Kai Jiao Department of Stomatology Tangdu Hospital&State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration&School of StomatologyThe Fourth Military Medical UniversityXi’anShaanxiChina State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration&National Clinical Research Center for Oral Diseases&Shaanxi Key Laboratory of Stomatology School of StomatologyThe Fourth Military Medical UniversityXi’anShaanxiChina The Dental College of Georgia Augusta UniversityAugustaGAUSA

Brain-derived extracellular vesicles participate in interorgan communication after traumatic brain injury by transporting pathogens to initiate secondary ***-related proteins encapsulated in brain-derived extracellular vesicles can cross the blood‒brain barrier to reach distal *** proteins initiate inflammatory dysfunction,such as neurogenic heterotopic *** recurrent condition is highly debilitating to patients because of its relatively unknown pathogenesis and the lack of effective prophylactic intervention ***,a rat model of neurogenic heterotopic ossification induced by combined traumatic brain injury and achillotenotomy was developed to address these two *** examination of the injured tendon revealed the coexistence of ectopic calcification and fibroblast *** relationships among brain-derived extracellular vesicles,fibroblast pyroptosis and ectopic calcification were further investigated in vitro and in *** injection of the pyroptosis inhibitor Ac-YVAD-cmk reversed the development of neurogenic heterotopic ossification in *** present work highlights the role of brain-derived extracellular vesicles in the pathogenesis of neurogenic heterotopic ossification and offers a potential strategy for preventing neurogenic heterotopic ossification after traumatic brain injury.

关键词： neurogenic ossification pathogenesis

胰腺和脑β淀粉样蛋白表达在小鼠2型糖尿病进程中同步变化的研究

在线全文

学校读者我要写书评

暂无评论

中华糖尿病杂志 2024年第5期16卷 527-534页

作者：谢磊徐嘉璐范荣萍陶静杨雁华中科技大学同济医学院附属同济医院内分泌科武汉430030

目的观察2型糖尿病(T2DM)小鼠胰腺和大脑组织β淀粉样蛋白(Aβ)随T2DM病程进展的表达情况。方法36只对照组小鼠及36只T2DM小鼠通过简单随机化分组各分为6组:13周龄组、16周龄组、19周龄组、22周龄组、25周龄组、28周龄组。从13周龄开始... 详细信息

目的观察2型糖尿病(T2DM)小鼠胰腺和大脑组织β淀粉样蛋白(Aβ)随T2DM病程进展的表达情况。方法36只对照组小鼠及36只T2DM小鼠通过简单随机化分组各分为6组:13周龄组、16周龄组、19周龄组、22周龄组、25周龄组、28周龄组。从13周龄开始,每隔3周处死一组小鼠,总共观察时间为13~28周。采用免疫组织化学染色法和酶联免疫吸附测定(ELISA)法观察T2DM小鼠Aβ在胰腺和大脑组织的分布及表达情况;通过Western blotting和ELISA法观察淀粉样前体蛋白(APP)以及β位点APP裂解酶-1(BACE-1)的表达情况。两组间比较采用t检验,多组间比较采用单因素方差分析。采用Spearman相关性分析法分析胰腺Aβ含量与稳态模型评估胰岛素抵抗指数(HOMA-IR)和胰岛素/胰岛素原比值之间的相关性。结果随着T2DM小鼠病程的进展,与对照组小鼠相比,T2DM小鼠胰腺胰岛及大脑海马区Aβ沉积逐渐加重(P<0.05)。T2DM小鼠胰腺和大脑海马组织中Aβ的含量随病程进展呈一致的逐渐升高的趋势(P<0.05)。两种组织中APP和BACE-1的表达水平随病程进展呈一致的先升高后下降的趋势(P<0.05)。Spearman相关性分析结果显示,随着病程进展,T2DM组小鼠的胰岛功能水平逐渐下降,并且与逐渐增加的胰腺Aβ沉积具有相关性,其中,HOMA-IR和胰岛素/胰岛素原与胰腺Aβ沉积的相关系数分别为0.8370和0.7281(P<0.001)。结论T2DM小鼠胰腺和大脑组织Aβ随病程进展的表达水平存在同步变化的现象。

关键词：糖尿病,2型阿尔茨海默病 β淀粉样蛋白同步化

PVTx Study of Binary System R22/R152a with Burnett Method

在线全文

学校读者我要写书评

暂无评论

Journal of Thermal Science 1994年第2期3卷 77-81页

作者： Su Zhijun Jiang Baocheng yan jialu(Dept. of Power Eng., Harbin Institute of Technology, Harbin, 150001, China)Zhu Mingshan Han Lizhong Fu Yidong(Dept. of Thermal Eng., Tsinghua University, Beijing, 100084, China) Dept. of Power Eng. Harbin Institute of Technology Harbin China Dept. of Thermal Eng. Tsinghua University Beijing China

ＰＶＴｘＳｔｕｄｙｏｆＢｉｎａｒｙＳｙｓｔｅｍＲ２２／Ｒ１５２ａｗｉｔｈＢｕｒｎｅｔｔＭｅｔｈｏｄ￥ＳｕＺｈｉｊｕｎ；ＪｉａｎｇＢａｏｃｈｅｎｇ；ＹａｎＪｉａｌｕ（Ｄｅｐｔ．ｏｆＰｏｗｅｒＥｎｇ．，ＨａｒｂｉｎＩｎｓ... 详细信息

ＰＶＴｘＳｔｕｄｙｏｆＢｉｎａｒｙＳｙｓｔｅｍＲ２２／Ｒ１５２ａｗｉｔｈＢｕｒｎｅｔｔＭｅｔｈｏｄ￥ＳｕＺｈｉｊｕｎ；ＪｉａｎｇＢａｏｃｈｅｎｇ；ＹａｎＪｉａｌｕ（Ｄｅｐｔ．ｏｆＰｏｗｅｒＥｎｇ．，ＨａｒｂｉｎＩｎｓｔｉｔｕｔｅｏｆＴｅｃｈｎｏｌｏｇ...

关键词：致冷物质 R22/R152a Burnett方法

考虑全生命周期碳排放的电氢耦合VPP调度优化

在线全文

学校读者我要写书评

暂无评论

电力建设 2024年第4期45卷 13-25页

作者：闫庆友党嘉璐林宏宇郑浩伟华北电力大学经济与管理学院北京市102206 国网经济技术研究院有限公司北京市102209

随着可再生能源的大规模开发、高比例并网,虚拟电厂逐渐成为充分发挥新型电力系统经济-环境效益的关键技术之一,文章重点研究了电氢耦合虚拟电厂多目标优化问题。首先,构建了含分布式风光机组、微型燃气轮机、分布式储能、柔性负荷的电... 详细信息

随着可再生能源的大规模开发、高比例并网,虚拟电厂逐渐成为充分发挥新型电力系统经济-环境效益的关键技术之一,文章重点研究了电氢耦合虚拟电厂多目标优化问题。首先,构建了含分布式风光机组、微型燃气轮机、分布式储能、柔性负荷的电氢耦合虚拟电厂。其次,运用多主体全生命周期法计算得到虚拟电厂构成组件的碳排放系数,并将其与阶梯式碳交易机制联合引入优化模型中。然后,以系统内运行成本最小和二氧化碳排放量最低为目标函数,通过赋权法将多目标优化转为单目标优化。最后选取华北某园区夏季、过渡季、冬季3个典型场景为算例分析验证所构建模型的有效性,算例结果表明该模型能兼顾虚拟电厂内部各设备主体运行的经济利益和环境效益。

关键词：虚拟电厂多目标优化全生命周期碳交易电转氢

岭澳核电站预应力灌浆用缓凝水泥浆配合比试验与应用

在线全文

学校读者我要写书评

暂无评论

建筑技术 2000年第12期31卷 840-841页

作者：雷昌聚颜家露中核华兴建设公司深圳分公司

岭澳2×90万kW核电站反应堆安全壳预应力采用曾用于大亚湾核电站的法国Freyssinet(弗莱西奈)体系.该体系缓凝水泥浆采用法国EDF-FREYSINET专利产品.但专利的缓凝浆是加减水和缓凝两种外加剂,并分二次加入,中间还要间隔45min,既不方便又... 详细信息

岭澳2×90万kW核电站反应堆安全壳预应力采用曾用于大亚湾核电站的法国Freyssinet(弗莱西奈)体系.该体系缓凝水泥浆采用法国EDF-FREYSINET专利产品.但专利的缓凝浆是加减水和缓凝两种外加剂,并分二次加入,中间还要间隔45min,既不方便又不经济.为此对缓凝水泥浆配合比进行了重新试验研究,并应用于实践,效果很好.

关键词：核电站缓凝水泥浆预应力灌浆配合比