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Perioperative artificial nutrition in malnourished gastrointestinal cancer patients

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World Journal of Gastroenterology 2006年第15期12卷 2441-2444页

作者： Guo-Hao wu Zhong-Hua Liu zhao-Han wu zhao-Guang wu Department of General Surgery Z-hongshan-HospitalFudan University Shanghai 200032 China

AIM： To investigate the potential role of perioperative nutrition in reducing complications and mortality in malnourished gastrointestinal cancer patients. METHODS： Four hundred and sixty-eight elective moderately or severely malnourished surgical patients with gastric or colorectal cancers defined by the subjective global assessment （SGA） were randomly assigned to 7 d preoperative and 7 d postoperative parenteral or enteral nutrition vs a simple control group. The nutrition regimen included 24.6±5.2 kcal /kg per d non-protein and 0.23±0.04 g nitrogen /kg per d. Control patients did not receive preoperative nutrition but received 600±100 kcal non-protein plus or not plus 62 ± 16 g crystalline amino acids postoperatively. RESULTS： Complications occurred in 18.3% of the patients receiving nutrition and in 33.5% of the control patients （P= 0.012）. Fourteen patients died in the control group and 5 in those receiving nutrition. There were significant differences in the mortality between the two groups （2.1% vs 6.0%, P=0.003）. The total length of hospitalization and postoperative stay of control patients were significantly longer （29 vs 22 d, P=0.014） than those of the studied patients （23 vs 12 d, P= 0.000）. CONCLUSION： Perioperative nutrition support is beneficial for moderately or severely malnourished gastrointestinal cancer patients and can reduce surgical complications and mortality.

关键词： Malnutrition Perioperative nutrition Parenteral nutrition Enteral nutrition Mortality Complications

An Improved Space-Time Joint Anti-jamming Algorithm Based on Variable Step LMS

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Tsinghua Science and Technology 2017年第5期22卷 520-528页

作者： Dengao Li Jinqiang Liu Jumin zhao Gang wu Xiaofang zhao College of Information Engineering Taiyuan University of Technology

In wireless communication, the space-time anti-jamming method is widely applied because it shows better performance than the pure airspace and pure temporal anti-jamming methods. However, its application is limited by its computational complexity, and it cannot suppress narrowband interference that is in the same direction as the navigation signal. To solve these problems, we propose improved frequency filter to filter the narrowband interference from the desired signal direction in advance, meanwhile, an improved variable step Least Mean Square （LMS） method is proposed to complete the space-time array weights with fast iteration, thereby reducing computational complexity. The simulation results show that, compared with conventional methods, the anti-jamming capability of the proposed algorithm is significantly enhanced; and its complexity is significantly reduced.

关键词： Space-Time Adaptive Processing (STAP) Least Mean Square (LMS) computational complexity frequency domain filter

基于Transformer的教育知识图谱实体抽取技术分析

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电子技术（上海） 2024年第5期53卷 198-199页

作者：刘敏吴昭江文湖南科技职业学院湖南410004

阐述基于Transformer的课程知识图谱实体识别模型设计。探讨基于人机协同的人工规则和深度学习混合的知识点抽取方法,通过在前馈网络层中的共享偏置项,减少模型参数的数量,提高训练效率。

关键词：知识图谱实体抽取自然语言处理深度学习

替格瑞洛联合非洛地平治疗冠心病心绞痛的效果及对COMP、LTBP-2表达的影响

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临床医学研究与实践 2024年第25期9卷 42-45页

作者：吴钊黄家欣西安市第五医院陕西西安710082

目的探讨替格瑞洛联合非洛地平治疗冠心病心绞痛的效果及对软骨寡聚基质蛋白(COMP)、潜在转化生长因子结合蛋白2(LTBP-2)表达的影响。方法选择2021年1月至2022年7月收治的84例冠心病心绞痛患者为研究对象,以随机数字表法将其分为对照组... 详细信息

目的探讨替格瑞洛联合非洛地平治疗冠心病心绞痛的效果及对软骨寡聚基质蛋白(COMP)、潜在转化生长因子结合蛋白2(LTBP-2)表达的影响。方法选择2021年1月至2022年7月收治的84例冠心病心绞痛患者为研究对象,以随机数字表法将其分为对照组与观察组,各42例。两组均给予常规治疗,在此基础上对照组采取非洛地平治疗,观察组采取替格瑞洛联合非洛地平治疗。比较两组的治疗效果。结果观察组的治疗总有效率明显高于对照组(P<0.05)。治疗后,观察组的心绞痛发作频率低于对照组,心绞痛发作持续时间短于对照组(P<0.05)。治疗后,观察组的每搏输出量(SV)、心排血量(CO)、二尖瓣舒张早期血流峰值速度/舒张晚期血流峰值速度比值(E/A)高于对照组(P<0.05)。治疗后,观察组的COMP、LTBP-2水平低于对照组(P<0.05)。结论替格瑞洛联合非洛地平治疗冠心病心绞痛的效果显著,可有效降低心绞痛发作频率,缩短发作持续时间,改善心功能,降低COMP、LTBP-2水平,值得推广。

关键词：替格瑞洛非洛地平冠心病心绞痛心功能

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基于模块化的车身线束开发

汽车电器 2024年第1期 58-59页

作者：马燃赵武周伟东风商用车技术中心湖北武汉430056

随着汽车电气化程度越来越高,车身线束的复杂程度也随之越来越高,加之卡车市场又存在多品种、小批量的特点,基于不同配置车型的车身线束种类也越来越多,从而给线束的设计、生产等环节带来了严重挑战,传统的线束开发模式已经无法满足需求... 详细信息

随着汽车电气化程度越来越高,车身线束的复杂程度也随之越来越高,加之卡车市场又存在多品种、小批量的特点,基于不同配置车型的车身线束种类也越来越多,从而给线束的设计、生产等环节带来了严重挑战,传统的线束开发模式已经无法满足需求,于是一种新的线束开发模式——基于模块化的线束开发应运而生。本文就某重卡平台的车身线束模块化开发为例,详细阐述车身线束模块化的开发方法。

关键词：车身线束模块化自动化

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配电网电能损耗计算与降损措施分析

通信电源技术 2024年第19期41卷 119-121页

作者：邹嘉伍钊国网长沙供电公司湖南长沙410000

配电网电能损耗是衡量配电网运行效率和经济性的关键指标,准确计算配电网电能损耗并制定有效的降损措施,对于提高电能利用率、节约能源成本以及促进电网经济运行具有重要意义。文章以理论线损计算和统计线损计算为研究对象,深入分析了... 详细信息

配电网电能损耗是衡量配电网运行效率和经济性的关键指标,准确计算配电网电能损耗并制定有效的降损措施,对于提高电能利用率、节约能源成本以及促进电网经济运行具有重要意义。文章以理论线损计算和统计线损计算为研究对象,深入分析了两种方法的原理、数学模型、适用条件、精度以及实际应用效果等,揭示了各自的优势和局限性。在此基础上,从优化网架、无功补偿以及自动化建设等方面,提出全面的配电网降损措施。文章研究成果可为配电网规划设计、运行管理以及降损增效提供重要的理论依据和实践指导,具有广阔的工程应用前景。

关键词：配电网电能损耗理论线损计算统计线损计算降损措施

沙库巴曲缬沙坦联合卡维地洛治疗老年慢性心力衰竭的效果及对TGF-β_(1)、CTGF水平的影响

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临床医学研究与实践 2024年第24期9卷 34-37页

作者：吴钊黄家欣西安市第五医院陕西西安710082

目的探讨沙库巴曲缬沙坦联合卡维地洛治疗老年慢性心力衰竭的效果及对转化生长因子-β_(1)(TGF-β_(1))、结缔组织生长因子(CTGF)水平的影响。方法择取2020年7月至2022年8月于我院就诊的100例老年慢性心力衰竭患者,随机将其分为对照组... 详细信息

目的探讨沙库巴曲缬沙坦联合卡维地洛治疗老年慢性心力衰竭的效果及对转化生长因子-β_(1)(TGF-β_(1))、结缔组织生长因子(CTGF)水平的影响。方法择取2020年7月至2022年8月于我院就诊的100例老年慢性心力衰竭患者,随机将其分为对照组和观察组,各50例。对照组给予卡维地洛治疗,观察组在对照组基础上加沙库巴曲缬沙坦治疗。比较两组的治疗效果。结果观察组的治疗总有效率高于对照组(P<0.05)。治疗后,观察组的TGF-β_(1)、CTGF水平低于对照组,差异具有统计学意义(P<0.05)。治疗后,观察组的左心室射血分数(LVEF)、心排血量(CO)高于对照组,左心室舒张末期内径(LVEDD)、室间隔厚度(IVST)低于对照组,差异具有统计学意义(P<0.05)。观察组的不良反应总发生率低于对照组(P<0.05)。结论沙库巴曲缬沙坦联合卡维地洛治疗老年慢性心力衰竭不仅能够全面提高临床效果,调节TGF-β_(1)、CTGF水平,还能促进心功能恢复,且安全性较高,值得推广。

关键词：沙库巴曲缬沙坦卡维地洛老年患者慢性心力衰竭

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身份加密多云多副本完整性审计协议

计算机工程与科学 2024年第3期46卷 453-462页

作者：张逢文斌闫一非曾昭武周伟海南师范大学信息科学技术学院海南海口571158 海南师范大学云计算与大数据研究中心海南海口571158 数据科学与智慧教育教育部重点实验室(海南师范大学) 海南海口571158

为解决现有可证明数据持有(PDP)协议只适用于单云存储服务器且过度依赖公钥基础设施的问题,提出一种新的基于身份的多云多副本PDP协议。该协议采用身份加密来简化证书管理,并设计双层默克尔哈希树作为新的安全数据结构,以维护多副本的... 详细信息

为解决现有可证明数据持有(PDP)协议只适用于单云存储服务器且过度依赖公钥基础设施的问题,提出一种新的基于身份的多云多副本PDP协议。该协议采用身份加密来简化证书管理,并设计双层默克尔哈希树作为新的安全数据结构,以维护多副本的新鲜性和一致性。安全性分析和实验结果均验证了该协议具备安全性和高效性,能够在多个云存储服务器上实现多副本完整性审计,并在标签生成、证据生成和证据验证3个阶段的效率上明显优于对比算法。

关键词：云存储数据完整性审计多云服务器多副本身份加密

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Multidisciplinary and multiscale nanoscience research roadmap based on large scientific facilities

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Science China Chemistry 2024年第8期67卷 2497-2523页

作者： Yuan Zeng Shuhan Zhang Yuecong Guo Yalin Cong Xu Ding Peihua Li Yunxiang Lin Wenzhi Ren Hui Su Weigang Sun Liuxin Xu Guikai Zhang Shihua Chen Yu Chen Weiren Cheng Shengqi Chu Yong Guan Jinru Han Jie Lin Hengjie Liu Zheyi Liu Pan Luo Fanchun Meng Sicong Qiao Zongyin Song Ying Wang zhao wu Chenyu Yang Meng Yang Shirui Yang Zi Yin Zhibin Yin Pengjun Zhang Hongyu Zhang Pingping Zheng Jia Zhou Wanlin Zhou Pengfei An He Cheng Chunhai Fan Xingjiu Huang Yong Lei Lina Li Mu Li Qinghua Liu Shuming Peng Li Song Zhihu Sun Yangchao Tian Fangjun Wang Lihua Wang Liming Wang Shiqiang Wei Aiguo wu Chunlei Xiao Xueming Yang Panchao Yin Jing Zhang Mingxin Zhang Yaling Wang Chunying Chen CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety New Cornerstone Science LaboratoryNational Center for Nanoscience and TechnologyBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029China Institute of Solid State Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China Institutes of Physical Science and Information Technology Anhui UniversityHefei 230601China Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology Zhejiang International Cooperation Base of Biomedical Materials Technology and ApplicationCAS Key Laboratory of Magnetic Materials and DevicesNingbo Cixi Institute of Biomedical EngineeringZhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo 315201China Advanced Energy Science and Technology Guangdong Laboratory Huizhou 516000China College of Chemistry and Chemical Engineering Hunan Normal UniversityChangsha 410081China State Key Laboratory of Luminescent Materials and Devices South China Advanced Institute for Soft Matter Science and TechnologySouth China University of TechnologyGuangzhou 510640China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China CAS Key Laboratory of Separation Sciences for Analytical Chemistry Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Institute of Advanced Science Facilities Shenzhen 518107China State Key Laboratory of Coal Conversion Institute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China State Key Laboratory of Particle Detection and Electronics Institute of High Energy PhysicsChinese Acade

With the advancement of modern science and technology, large scientific facilities are increasingly oriented toward demand and application, and can be used for basic research as well as serving multiple disciplines. Developing large scientific facilities and related analytical technologies enhances understanding of large scientific facilities and popularizes their application in research across multiple disciplines. The combination of light or neutron sources from large scientific facilities and advanced analytical technologies can be achieved for materials structure information, dynamics study of chemical reactions, high dissociation of biomolecules, 3D visualization of energy materials or biological samples, etc. We first introduce the progress of domestic large scientific facilities of synchrotron radiation(SR) and free electron lasers(FELs) with different wavelengths and neutron *** further discuss the comparison between Chinese and typical foreign facilities in X-ray radiation from X-ray tubes, synchrotrons, X-ray FELs, and neutron sources based on physical parameters of light and neutron sources. In addition, we focus on the technological progress and perspectives combined with advanced X-ray radiation and neutron sources of large scientific facilities in China, especially in the nanoscience fields of energy catalysis and biological science. We hope that this roadmap will provide references on technology and methods to experimental users, as well as prospects for future development of technologies based on large research infrastructure facilities. Comprehensive studies and guidelines for basic research to practical application in various disciplines can be made with the assistance of large scientific facilities.

关键词： large scientific facilities synchrotron radiation FEL light sources neutron sources spectroscopic analysis methods X-ray imaging techniques structural information chemical dynamics