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减重及代谢外科手术的关键技术标准及评价

中国实用外科杂志 2024年第1期44卷 70-73页

作者：王勇谢佳冀中国医科大学第四医院普外科辽宁沈阳110032

减重手术在全球开展多年,经过不断的技术创新,已由最初的开放性手术方式逐渐发展为微创的减重手术。随着手术的广泛开展与普及,人们逐渐认识到手术的规范化程度将直接影响病人术后的减重效果及术后并发症的出现。因此,对手术操作细节的... 详细信息

减重手术在全球开展多年,经过不断的技术创新,已由最初的开放性手术方式逐渐发展为微创的减重手术。随着手术的广泛开展与普及,人们逐渐认识到手术的规范化程度将直接影响病人术后的减重效果及术后并发症的出现。因此,对手术操作细节的规范化、标准化受到了业界的高度重视并推出多部减重代谢外科临床指南来规范此类手术的开展。肥胖及相关代谢性疾病的外科治疗是一个不断发展和创新的领域,需要根据不同病人的情况和需求,选择合适的手术方式和技术,同时也要遵循一定的规范和标准,以保证手术的质量和效果,同时也要加强术后的管理和随访,以实现病人受益的最大化。

关键词：减重手术指南与共识质量控制

A theoretical model for the estimation of maximum impact force from a rockfall based on contact theory

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Journal of Mountain Science 2018年第2期15卷 430-443页

作者： ZHANG Shi-lin YANG Xing-guo ZHOU jia-wen State Key Laboratory of Hydraulics and Mountain River Engineering Sichuan University College of Water Resource and Hydropower Sichuan University

Rockfall poses a great threat to buildings and personal security. To understand the dynamic characteristics of rockfalls is a prerequisite for disaster prevention and assessment. Models for rockfalls in different forms are established based on the theory of rigid body motion. The equivalent velocity considering the rotational effect is determined by the energy ratio. Besides, considering plastic deformation and nonlinear hardening, the maximum impact force is estimated based on the Hertz contact theory. Then, a case study is carried out to illustrate the applicability of the model and sensitive analyses on some affecting parameters are also made. Calculation results show that the maximum impact force increases with the increasing of incident velocity, angle and slope gradient reflected by the changing of energy ratio. Moreover, the model for the estimation of maximum impact force is validated by two different scales of experiments and compared with other theoretical models. Simulated maximum impact forces agree well with the experiments.

关键词： RockfaU Motion characteristics Contacttheory Maximum impact force

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机会窗口何以触发关键核心技术创新突破?

科学学研究 2024年第10期42卷 2191-2205页

作者：王昶彭佳琪何琪中南大学商学院湖南长沙410083

机会窗口为关键核心技术创新突破提供战略机遇,但具体机制尚不明确。为探究机会窗口对企业关键核心技术创新突破的中介机制及边界条件,本文基于MOA理论构建一个有调节的中介模型,并利用战略新兴行业中315家企业样本数据展开实证分析。... 详细信息

机会窗口为关键核心技术创新突破提供战略机遇,但具体机制尚不明确。为探究机会窗口对企业关键核心技术创新突破的中介机制及边界条件,本文基于MOA理论构建一个有调节的中介模型,并利用战略新兴行业中315家企业样本数据展开实证分析。研究发现:技术机会窗口、市场机会窗口与政策机会窗口是关键核心技术创新突破的外在触发条件;技术期望、市场期望是连接机会窗口与关键核心技术创新突破的重要桥梁,也是关键核心技术创新突破的内在驱动力;技术能力是企业跨越创新期望与行动间鸿沟的重要支撑,技术能力较高的企业在机会窗口的刺激下产生的技术期望和市场期望对关键核心技术创新突破的内在驱动作用更强。本研究揭示了机会窗口对关键核心技术创新突破的触发机制,为企业关键核心技术创新突破提供理论支撑与借鉴。

关键词： MOA 机会窗口关键核心技术

Numerical modeling on the interaction of internal solitary wave with slope-shelf and modal analysis

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Acta Oceanologica Sinica 2007年第6期26卷 139-149页

作者： LI Qun XU Zhaoting CHEN Xu yu jia Physical Oceanography Laboratory and Institute of Physical Oceanography Ocean University of China Qingdao 266100 China

On the basis of a nonhydrostatic numerical model, the interaction of internal solitary wave with slope - shelf was studied. The breaking and polarity transformation were analyzed. A ＂kink＂ structure, due to shoaling topography and higher nonlinear effect, was found to be generated by the leading wave before breaking. Coherent vortex shedding behind the leading wave was presented. The evolution characteristics of the modal structure were analyzed based on the empirical orthogonal function method. The modal structure was complicated due to the effect of the variable topography, especially when breaking occurred. In the performed experiments, the contributions to the total variance from higher mode jumped from no more than 20% to over 40%.

关键词： internal solitary wave modal structure empirical orthogonal function

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食品添加剂在食品工业中的应用

江苏调味副食品 2024年第3期 6-8页

作者：韩磊韩晓宇贾娟河南工业大学漯河工学院河南漯河462002 漯河职业技术学院河南漯河462002

食品添加剂是现代食品工业的重要基础,给人们带来了更好的嗅觉、视觉和味觉享受,同时也给现代食品工业带来了长远的发展。综述食品添加剂的分类、主要功能及存在的问题,展望食品添加剂的发展趋势,为我国食品添加剂的应用提供参考。

关键词：食品添加剂分类功能复配型

新《职业教育法》实施背景下职业教育产教融合产权机制研究

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河北职业教育 2024年第1期8卷 22-26页

作者：黄亚宇周亮龙佳湖南机电职业技术学院湖南长沙410151

职业教育产教融合,面临经济产权、知识产权、劳动力产权等各类产权问题。职业教育产教融合中产权属于一种教育产权,具有产权主体的多元性、产权结构的复杂性、产权交易的可流通性等特征。针对职业教育产教融合存在着地方立法不完善、产... 详细信息

职业教育产教融合,面临经济产权、知识产权、劳动力产权等各类产权问题。职业教育产教融合中产权属于一种教育产权,具有产权主体的多元性、产权结构的复杂性、产权交易的可流通性等特征。针对职业教育产教融合存在着地方立法不完善、产权主体不明晰、产权权能不完整、产权管理机制失衡等问题,提出出台地方性政策法规以完善顶层设计、明晰产权结构以保护产权主体的合法权益、建立教育产权交易市场以解决产权合理流动、平等保护以确保非公有产权主体所持财产的增值等对策建议,促使产业主体参与职业教育,推动职业教育高质量发展。

关键词：职业教育法职业教育产教融合教育产权企业产权

Molecular analyses of bacterioplankton communities with highly abundant Vibrio clades: a case study in Bohai Sea coastal waters

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Journal of Oceanology and Limnology 2019年第5期37卷 1638-1648页

作者： WANG Shuping ZHANG yuan HE jia jia Xiaobo lin jianing LI Meng WANG Qinglin State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China Institute for Advanced Study Shenzhen UniversityShenzhen 518000China College of Animal Science and Technology Hebei Normal University of Science and TechnologyQinhuangdao 066000China

We investigated the bacterioplankton abundance, community composition and the associated Vibrio clades of natural seawater in Bohai Sea coastal waters. Seawater samples (10 L in triplicate) were collected at 0.5, 3, and 5 m depths near the coastal aquaculture zone of the Bohai Sea on May 12, 2016. Real-time PCR and 16S rRNA gene amplicon high-throughput sequencing methods were employed by which 485 operational taxonomic units (OTUs) at a 97% sequence similarity level were generated. Gammaproteobacteria, Alphaproteobacteria, and Bacteroidetes were the most abundant groups, accounting for 49.5%, 23.5%, and 18.9% of the total assemblage, respectively. Obvious variations in Pseudoalteromonas, Vibrio, and Octadecabacter , which were the most abundant genera, could be observed among diff erent samples. Notably, the results of Vibrio -specifi c real-time PCR indicated that Vibrio had extremely high 16S rRNA gene copy numbers. The 16S rRNA gene sequencing results across all the samples also indicated that they occupied a large proportion of the total assemblage. Both the alpha diversity and major bacterioplankton group Pseudoalteromonas had significant correlations with the concentration of PO4^3-. Overall, studies on bacterioplankton communities with highly abundant Vibrio clades can provide interesting insight into the microbial function and health assessment of the Bohai Sea coastal ecosystem.

关键词： Bohai Sea bacterioplankton Vibrio 16S rRNA Illumina MiSeq

Cosmic microwave background constraints on the tensor-to-scalar ratio

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Research in Astronomy and Astrophysics 2014年第6期14卷 635-647页

作者： King Lau jia-yu Tang Ming-Chung Chu Department of Physics and Institute of Theoretical Physics The Chinese University of Hong Kong

One of the main goals of modern cosmic microwave background （CMB） missions is to measure the tensor-to-scalar ratio r accurately to constrain inflation models. Due to ignorance about the reionization history Xe （z）, this analysis is usu- ally done by assuming an instantaneous reionization Xe （z） which, however, can bias the best-fit value of r. Moreover, due to the strong mixing of B-mode and E-mode polarizations in cut-sky measurements, multiplying the sky coverage fraction fsky by the full-sky likelihood would not give satisfactory results. In this work, we forecast constraints on r for the Planck mission taking into account the general reionization scenario and cut-sky effects. Our results show that by applying an N-point interpo- lation analysis to the reionization history, the bias induced by the assumption of in- stantaneous reionization is removed and the value of r is constrained within 5% error level, if the true value of r is greater than about 0.1.

关键词： cosmology: cosmic microwave background -- cosmology: cosmologicalparameters -- cosmology: early universe -- gravitational waves

The Effect of Wheat Mixtures on the Powdery Mildew Disease and Some Yield Components

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Journal of Integrative Agriculture 2012年第4期11卷 611-620页

作者： LI Ning jia Shao-feng WANG Xiu-na DUAN Xia-yu ZHOU Yi-lin WANG Zong-hua LU Guo-dong State Key Laboratory for Biology of Plant Disease and lnsect Pests Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing 100193 P.R.China School of Life Sciences Fujian Agriculture and Forestry University Fuzhou 350002 P.R. China

Mixtures composed of five wheat cultivars,Jingshuang 16,Jing 411,Jingdong 8,Lunxuan 987,and Baofeng 104,with different levels of resistance against powdery mildew were tested for their potential containment of the disease development in the field and for the influence on grain yield and the content of crude protein in the years 2007 and *** plots were inoculated artificially with mixed isolates collected in the fields and propagated in the greenhouse and the disease was scored in 7 d interval during the two growing *** was indicated that certain combinations,e.g.,Jingdong 8：Lunxuan 987,Jingdong 8：Baofeng 104,and Jing 411：Jingdong 8：Baofeng 104,showed positive efficacy on the *** cultivar combinations tested in 2007 showed increase of grain yield,while most of the combinations tested in 2010 did not show the *** differences of the increases or decreases were not statistically significant except combinations Jing 411：Jingdong 8：Baofeng104,Jingshuang16：Jingdong8：Lunxuang 987 and Jingshuang 16：Jingdong 8：Lunxuan 987：Baofeng 104,which showed the decrease of the grain *** mixtures did not show influence on the content of crude protein in *** cultivar combinations need to be tested.

关键词： wheat powdery mildew cultivar mixture AUDPC yield crude protein