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Improvement of AlN Thermal Conductivity Based on Reductive Compound Additives

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Journal of Wuhan University of Technology(Materials Science) 2023年第5期38卷 1025-1033页

作者： LI Meijuan wang Chuanyi wang gaoqiang wang Chuanbin SHEN Qiang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China School of Chemistry Chemical Engineering and Life SciencesWuhan University of TechnologyWuhan 430070China Nanchong Three-circle Electronics Co.LTD. Nanchong 637100China

AlN ceramics were prepared by plasma activation sintering(PAS)with compound additives yttrium acetylacetonate(Y(acac)_(3))and melamine(C_(3)H_(6)N_(6)).The effects of compound additives on the microstructure,density,and thermal properties of Al N ceramic were studied.Y(acac)3and C_(3)H_(6)N_(6)can form Y_(2)O_(3),residual organic carbon and reducing gas during the heating process,which improves the Al N sintering performance at a temperature of 1700℃and the bulk thermal *** the content of Y(acac)_(3)is 10 wt%and C_(3)H_(6)N_(6)is 3 wt%,the thermal conductivity of Al N ceramics is 105.6 W/(m·K),which is much higher than that of Al N ceramics with Y_(2)O_(3)under the same sintering *** work provides theoretical reference for the preparation of high-performance Al N ceramic.

关键词： reductive compound additives AlN ceramic thermal conductivity:plasma activated sintering

基于SWOT分析的民营智慧养老企业发展策略研究

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市场周刊 2024年第12期37卷 112-115页

作者：徐天昊李纯张嘉玲王高强三江学院江苏南京210012 南通理工学院江苏南通226001

智慧养老企业的产生旨在为解决我国人口老龄化带来的养老压力问题。文章通过建立SWOT分析模型,综述民营智慧养老企业将会面临的优势、劣势、机遇和挑战的研究现状,并运用SWOT分析策略提出民营企业发展、人才培养、技术发展、企业管理等... 详细信息

智慧养老企业的产生旨在为解决我国人口老龄化带来的养老压力问题。文章通过建立SWOT分析模型,综述民营智慧养老企业将会面临的优势、劣势、机遇和挑战的研究现状,并运用SWOT分析策略提出民营企业发展、人才培养、技术发展、企业管理等策略,为我国民营智慧养老企业发展提供参考依据,保障民营智慧养老企业稳步发展,为我国养老服务行业再添一抹亮色。

关键词：智慧养老 SWOT分析人才培养技术发展

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Abnormal Traffic Detection for Internet of Things Based on an Improved Residual Network

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Computers, Materials & Continua 2024年第6期79卷 4433-4448页

作者： Tingting Su Jia wang Wei Hu gaoqiang Dong Jeon Gwanggil School of Computer Science and Technology Xinjiang UniversityUrumqi830046China School of Cyber Science and Engineering Jinling Institute of Technology CityNanjing210000China College of Information Technology Incheon National UniversityIncheon22012Korea

Along with the progression of Internet of Things(IoT)technology,network terminals are becoming continuously more *** has been widely applied in various scenarios,including urban infrastructure,transportation,industry,personal life,and other socio-economic *** introduction of deep learning has brought new security challenges,like an increment in abnormal traffic,which threatens network *** feature extraction leads to less accurate classification *** abnormal traffic detection,the data of network traffic is high-dimensional and *** data not only increases the computational burden of model training but also makes information extraction more *** address these issues,this paper proposes an MD-MRD-ResNeXt model for abnormal network traffic *** fully utilize the multi-scale information in network traffic,a Multi-scale Dilated feature extraction(MD)block is *** module can effectively understand and process information at various scales and uses dilated convolution technology to significantly broaden the model’s receptive *** proposed Max-feature-map Residual with Dual-channel pooling(MRD)block integrates the maximum feature map with the residual *** module ensures the model focuses on key information,thereby optimizing computational efficiency and reducing unnecessary information *** results show that compared to the latest methods,the proposed abnormal traffic detection model improves accuracy by about 2%.

关键词： Abnormal network traffic deep learning residual network multi-scale feature extraction max-feature-map

Effect of annealing on the electrical performance of N-polarity GaN Schottky barrier diodes

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Journal of Semiconductors 2024年第4期45卷 48-55页

作者： Nuo Xu gaoqiang Deng Haotian Ma Shixu Yang Yunfei Niu Jiaqi Yu Yusen wang Jingkai Zhao Yuantao Zhang State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130012China

A nitrogen-polarity(N-polarity)GaN-based high electron mobility transistor(HEMT)shows great potential for high-fre-quency solid-state power amplifier applications because its two-dimensional electron gas(2DEG)density and mobility are mini-mally affected by device ***,the Schottky barrier height(SBH)of N-polarity GaN is *** leads to a large gate leakage in N-polarity GaN-based *** this work,we investigate the effect of annealing on the electrical characteristics of N-polarity GaN-based Schottky barrier diodes(SBDs)with Ni/Au *** results show that the annealing time and tem-perature have a large influence on the electrical properties of N-polarity GaN *** to the N-polarity SBD without annealing,the SBH and rectification ratio at±5 V of the SBD are increased from 0.51 eV and 30 to 0.77 eV and 7700,respec-tively,and the ideal factor of the SBD is decreased from 1.66 to 1.54 after an optimized annealing *** analysis results suggest that the improvement of the electrical properties of SBDs after annealing is mainly due to the reduction of the inter-face state density between Schottky contact metals and N-polarity GaN and the increase of barrier height for the electron emis-sion from the trap state at low reverse bias.

关键词： nitrogen polarity GaN Schottky barrier diodes annealing interface state

Discovery and mechanism of anti-hypertensive effect of a novel tripeptide(SYP) from medicinal fungus Ganoderma lingzhi

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Food Science and Human Wellness 2024年

作者： Qiang Wu Feijun Luo Jia Huang Ping Huang Yongnan Liu Xiaoling wang gaoqiang Liu Hunan Provincial Key Laboratory of Forestry Biotechnology and International Cooperation Base of Science and Technology Innovation on Forest Resource Biotechnology Central South University of Forestry and Technology Microbial Variety Creation Center Laboratory of Yuelushan Seed Industry College of Food and Chemical Engineering Shaoyang University Laboratory of Molecular Nutrition National Engineering Laboratory for Rice and Byproducts Central South University of Forestry and Technology

Ganoderma lingzhi is a new species of the prize medicinal mushroom Ganoderma (Agaricomycetes). Using angiotensin I-converting enzyme (ACE) as a target， a tripeptide Ser-Tyr-Pro (SYP) was discovered with preponderant ACE inhibitory activity with an 50% inhibiting concentration (IC50) value of 62.50 μg/mL attribute to the formed salt bridge and hydrogen bonds between SYP and ACE. SYP even maintained superior bioactivity after intestinal digestion， and exerted no cytotoxicity， but presented incomplete bioavailability in blood of spontaneous hypertensive rats (SHRs). Furthermore， it performed antihypertensive effect in vivo by inhibiting the influx of Ca2+through activating endothelial NO synthase (eNOS)/NO/guanosine 3’，5’-cyclic monophosphate (cGMP) pathway， accompanied by attenuating angiotensin Ⅱ (Ang Ⅱ)/NADPH oxidase (NOX)/ROS pathway. This work not only discoverers a novel pharmacological ingredient from medicinal mushroom G. lingzhi for hypertension therapy， but also provides an insight into molecular mechanism of the ACE inhibitory peptide (ACEIP) on lowering blood pressure.

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瑞马唑仑与丙泊酚在中老年腹腔镜子宫切除患者诱导与维持阶段的麻醉效果对比

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中外医药研究 2024年第1期3卷 66-68页

作者：张炳勇王高强余紫宁江培颜麻城市人民医院湖北黄冈438300

目的:比较瑞马唑仑与丙泊酚在中老年腹腔镜子宫切除患者中诱导与维持阶段的麻醉效果。方法:选取2022年4月—2023年4月麻城市人民医院收治的中老年腹腔镜子宫切除患者80例为研究对象,以随机数表法分为对照组与观察组,各40例。对照组采用... 详细信息

目的:比较瑞马唑仑与丙泊酚在中老年腹腔镜子宫切除患者中诱导与维持阶段的麻醉效果。方法:选取2022年4月—2023年4月麻城市人民医院收治的中老年腹腔镜子宫切除患者80例为研究对象,以随机数表法分为对照组与观察组,各40例。对照组采用丙泊酚、舒芬太尼、罗库溴铵行麻醉诱导,术中采用瑞芬太尼、丙泊酚行麻醉维持,观察组采用瑞马唑仑、舒芬太尼、罗库溴铵行麻醉诱导,术中采用瑞芬太尼、瑞马唑仑行麻醉维持。比较两组血流动力学指标、术后恢复时间、认知功能及不良反应发生情况。结果:麻醉诱导时,两组平均动脉压(MAP)、心率(HR)比较,差异无统计学意义(P>0.05);脑电双频指数<60时,观察组MAP高于对照组,HR低于对照组,差异有统计学意义(P<0.05);插管后,观察组MAP、HR低于对照组,差异有统计学意义(P<0.05)。观察组睁眼、拔管及监测治疗室停留时间均短于对照组,差异有统计学意义(P=0.001)。术后24、72 h,两组简易精神状态评价量表评分均降低,观察组高于对照组,差异有统计学意义(P<0.05)。观察组不良反应发生率低于对照组,差异有统计学意义(P=0.034)。结论:相较于丙泊酚,中老年腹腔镜子宫切除患者术中采用瑞马唑仑行麻醉诱导、维持,更利于维持术中血流动力学的稳定,且对认知功能的影响较小,患者术后恢复时间更短,不良反应发生率更低。

关键词：腹腔镜子宫切除中老年瑞马唑仑丙泊酚麻醉

肠道微生物代谢与人体心脑血管疾病的相关性研究

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工业微生物 2023年第6期53卷 10-12页

作者：王高强郑州澍青医学高等专科学校河南郑州450064

肠道微生物是人体各器官功能保持运转的重要参与者,为人体各器官的新陈代谢提供了基础能量。当前心脑血管疾病在我国的发病率和死亡率都较高。随着生物医学模式的逐渐发展,临床工作者发现肠道微生物代谢与人体心脑血管疾病之间具有一定... 详细信息

肠道微生物是人体各器官功能保持运转的重要参与者,为人体各器官的新陈代谢提供了基础能量。当前心脑血管疾病在我国的发病率和死亡率都较高。随着生物医学模式的逐渐发展,临床工作者发现肠道微生物代谢与人体心脑血管疾病之间具有一定的关联,深入分析二者的相关性,能够为今后论治心脑血管疾病提供一定的临床依据。

关键词：肠道微生物代谢人体心脑血管疾病相关性

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口腔菌落结构变化与胃癌发生的相关性研究

工业微生物 2023年第5期53卷 33-35页

作者：王高强郑州澍青医学高等专科学校河南郑州450064

胃癌是世界上致死率较高的癌症之一。在我国,胃癌的发病率和死亡率居于所有恶性肿瘤的第4位和第3位。研究表明,胃癌患者的口腔微生物群落与健康人区别显著,口腔菌落结构的变化可能会引发胃癌。尤其是当前我国大众不注重口腔健康,在日常... 详细信息

胃癌是世界上致死率较高的癌症之一。在我国,胃癌的发病率和死亡率居于所有恶性肿瘤的第4位和第3位。研究表明,胃癌患者的口腔微生物群落与健康人区别显著,口腔菌落结构的变化可能会引发胃癌。尤其是当前我国大众不注重口腔健康,在日常生活中不能定期检查口腔健康状况,容易导致口腔菌落结构失衡,引发一系列严重的疾病,最终引发胃癌。文章通过研究口腔菌落结构变化与胃癌之间的关系,建立对照组并进行对比分析,了解口腔菌落结构变化与胃癌之间的关系,为及时发现胃癌、治疗胃癌提供了可行性措施。

关键词：口腔菌落胃癌相关性研究结构性变化

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烟草基层服务站信息化建设与工业化融合研究

现代工业经济和信息化 2023年第6期13卷 59-61页

作者：张萌王高强山东潍坊烟草有限公司山东潍坊261000

随着改革浪潮不断袭来,烟草行业发展速度不断加快,也逐步意识到创新发展的重要性。创新是推动企业快速发展的重要渠道,面对这一渠道烟草公司既要思考长远的发展,更要立足当前寻求变革。近年来,随着行业工作向基层的不断延伸,行业更加重... 详细信息

随着改革浪潮不断袭来,烟草行业发展速度不断加快,也逐步意识到创新发展的重要性。创新是推动企业快速发展的重要渠道,面对这一渠道烟草公司既要思考长远的发展,更要立足当前寻求变革。近年来,随着行业工作向基层的不断延伸,行业更加重视基层服务站的建设,通过基层服务站信息化建设来促进服务质量的提升,借助信息化的手段促进资源更高效精准的配置,搭建与客户的渠道从而实现双方共赢。主要探讨了两化背景下,烟草基层服务站信息化与工业化融合的发展途径。

关键词：工业化信息化基层服务融合发展