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Radial Clearance Control and Internal Leakage Analysis of a Tri-Proportion Controller

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International Journal of Plant Engineering and Management 2009年第2期14卷 96-101页

作者： LI Dai-jin ZHANG Yu-wen tang hao DANG Jian-jun LUO Kai College of Marine Engineering Northwestern Polytechnic University Xi'an 710072 China

The tri-propellant thermal propulsion system is one of the hottest subjects in the field of underwater vehicles recently. To improve efficiency of underwater vehicles, a method of radial clearance control of the tri-proportion has been proposed. Based on analyzing the factors which influence the pressure decrease and leakage of the tri-proportion controller, a method is used for precision analysis and proportion adjustment by using the median optimizing theory. Analysis results show that accuracy of the proportion controller is dependent on all the leakage, while the leakage is decided by radial clearance and pressure; the leakage can be controlled effectively and the accuracy of the proportion can be improved with the radial clearance control method. The method of accuracy analysis and clearance control has value on the design of various hydraulic motors.

关键词： underwater thermal propulsion system proportion controller radial clearance internal leakage

Recommendations for articles and reviews in colorectal cancerrelated research at the year-end of 2023

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World Journal of Gastroenterology 2024年第30期30卷 3548-3553页

作者： wen-Yu Luan hao Lin Yan-Dong Miao Department of Cancer Center The Yantai Affiliated Hospital of Binzhou Medical UniversityThe Second Medical College of Binzhou Medical UniversityYantai 264100Shandong ProvinceChina

As peer reviewers of the World Journal of Gastroenterology,our weekly routine involves immersing ourselves in the newly published issue,particularly focusing on the realm of colorectal cancer(CRC)*** diligently sift through various contributions,ranging from comprehensive reviews to original articles and other scholarly *** meticulous examination,we discern the most notable papers,delving into each with careful scrutiny to distill their merits and ***,this undertaking demands considerable time and ***,it stands as an indispensable pursuit,affording us a profound comprehension of the latest breakthroughs in CRC ***,these meticulously curated selections furnish readers with invaluable resources,serving as enduring references for the nuanced exploration of this dynamic field.

关键词： Colorectal cancer Molecular mechanism Genetic marker Application of new technologies Diagnosis Treatment

Association between glucose levels of children with type 1 diabetes and parental economic status in mobile health application

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World Journal of Diabetes 2024年第7期15卷 1477-1488页

作者： wen-hao Zhang Chao-Fan Wang hao Wang Jie tang Hong-Qiang Zhang Jiang-Yu Zhu Xue-Ying Zheng Si-Hui Luo Yu Ding Department of Endocrinology The First Affiliated Hospital of University of Science and Technology of ChinaDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230001Anhui ProvinceChina Department of Endocrinology and Metabolism The Third Affiliated Hospital of Sun Yat-sen UniversityGuangdong Provincial Key Laboratory of DiabetologyGuangzhou 510000Guangdong ProvinceChina Graduate School Bengbu Medical CollegeBengbu 233000Anhui ProvinceChina

BACKGROUND The glycemic control of children with type 1 diabetes(T1D)may be influenced by the economic status of their *** To investigate the association between parental economic status and blood glucose levels of children with T1D using a mobile health *** Data from children with T1D in China's largest T1D online community,tang-tangQuan■.Blood glucose levels were uploaded every three months and parental economic status was evaluated based on annual household *** were divided into three groups:Low-income(100000 yuan)(1 Yuan=0.145 United States Dollar approximately).Blood glucose levels were compared among the groups and associations were explored using Spearman’s correlation analysis and multivariable logistic *** From September 2015 to August 2022,1406 eligible children with T1D were included(779 female,55.4%).Median age was 8.1 years(Q1-Q3:4.6-11.6)and duration of T1D was 0.06 years(0.02-0.44).Participants were divided into three groups:Low-income(n=320),middle-income(n=724),and high-income(n=362).Baseline hemoglobin A1c(HbA1c)levels were comparable among the three groups(P=0.072).However,at month 36,the low-income group had the highest HbA1c levels(P=0.036).Within three years after registration,glucose levels increased significantly in the low-income group but not in the middle-income and high-income *** economic status was negatively correlated with pre-dinner glucose(r=-0.272,P=0.012).After adjustment for confounders,parental economic status remained a significant factor related to pre-dinner glucose levels(odds ratio=13.02,95%CI:1.99 to 126.05,P=0.002).CONCLUSION The blood glucose levels of children with T1D were negatively associated with parental economic *** is suggested that parental economic status should be taken into consideration in the management of T1D for children.

关键词： Type 1 diabetes Children and adolescents Glycemic control Economic status Mobile health application

Corporate Credit Ratings Based on Hierarchical Heterogeneous Graph Neural Networks

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Machine Intelligence Research 2024年第2期21卷 257-271页

作者： Bo-Jing Feng Xi Cheng hao-Nan Xu wen-Fang Xue Center for Research on Intelligent Perception and Computing National Laboratory of Pattern RecognitionInstitute of AutomationChinese Academy of SciencesBeijing 100190China

order to help investors understand the credit status of target corporations and reduce investment risks,the corporate credit rating model has become an important evaluation tool in the financial *** models are based on statistical learning,machine learning and deep learning especially graph neural networks(GNNs).However,we found that only few models take the hierarchy,heterogeneity or unlabeled data into account in the actual corporate credit rating ***,we propose a novel framework named hierarchical heterogeneous graph neural networks(HHGNN),which can fully model the hierarchy of corporate features and the heterogeneity of relationships between *** addition,we design an adversarial learning block to make full use of the rich unlabeled samples in the financial *** experiments conducted on the public-listed corporate rating dataset prove that HHGNN achieves SOTA compared to the baseline methods.

关键词： Corporate credit rating hierarchical relation heterogeneous graph neural networks adversarial learning

Exploiting blockchain for dependable services in zero-trust vehicular networks

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Frontiers of Computer Science 2024年第2期18卷 157-166页

作者： Min hao Beihai TAN Siming WANG Rong YU Ryan wen LIU Lisu YU School of Automation Guangdong University of TechnologyGuangzhou 510006China School of Integrated Circuits Guangdong University of TechnologyGuangzhou 510006China School of Navigation Wuhan University of TechnologyWuhan 430063China School of Information Engineering Nanchang UniversityNanchang 330031China

The sixth-generation(6G)wireless communication system is envisioned be cable of providing highly dependable services by integrating with native reliable and trustworthy ***-trust vehicular networks is one of the typical scenarios for 6G dependable *** the technical framework of vehicle-and-roadside collaboration,more and more on-board devices and roadside infrastructures will communicate for information *** reliability and security of the vehicle-and-roadside collaboration will directly affect the transportation *** a zero-trust vehicular environment,to prevent malicious vehicles from uploading false or invalid information,we propose a malicious vehicle identity disclosure approach based on the Shamir secret sharing ***,a two-layer consortium blockchain architecture and smart contracts are designed to protect the identity and privacy of benign vehicles as well as the security of their private *** that,in order to improve the efficiency of vehicle identity disclosure,we present an inspection policy based on zero-sum game theory and a roadside unit incentive mechanism jointly using contract theory and subjective logic *** verify the performance of the entire zero-trust solution through extensive simulation *** the premise of protecting the vehicle privacy,our solution is demonstrated to significantly improve the reliability and security of 6G vehicular networks.

关键词： sixth-generation(6G) zero-trust block-chain vehicular networks privacy preservation

Divergent defluorocarboxylation of α-CF_(3) alkenes with formate via photocatalyzed selective mono-or triple C-F bond cleavage

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Science China Chemistry 2024年第1期67卷 368-373页

作者： Xing-Yu Wang Pei Xu wen-wen Liu hao-Qiang Jiang Song-Lei Zhu Dong Guo Xu Zhu Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy School of PharmacyXuzhou Medical UniversityXuzhou 22100China

Unprecedented divergent synthesis of gem-difluorovinylacetic acid and glutaric acid derivatives fromα-CF_(3)alkenes with formate as the carbonyl source was *** reaction can undergo selective mono-or triple C-F bond cleavage by simply switching the photocatalyst and hydrogen atom transfer(HAT)catalyst under visible-light-induced conditions at room *** acts as both the C1 source and the reductant through the generation of CO_(2)^(·-)species,which underwent Giese radical addition to electron-deficient alkenes to trigger the consecutive C-F bond cleavage and carboxylation process.

关键词： C-F bond activation defluorocarboxylation carbon dioxide radical anion visible light

棒材等离子喷涂法制备Fe_(80)P_(13)C_7非晶态合金涂层的成形特征

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焊接学报 2007年第1期28卷 17-20页

作者：雷阿利唐文浩冯拉俊西安理工大学材料科学与工程学院西安710048

采用棒材等离子喷涂法制备Fe80P13C7非晶态合金涂层，采用XRD-7000型射线衍射仪分析了涂层的组织，采用CRY-2P型差热分析仪测定所制备的非晶态合金涂层的DTA曲线，分析了涂层的晶化温度，采用HX-1000型显微硬度计测量涂层的显微硬度，采... 详细信息

采用棒材等离子喷涂法制备Fe80P13C7非晶态合金涂层，采用XRD-7000型射线衍射仪分析了涂层的组织，采用CRY-2P型差热分析仪测定所制备的非晶态合金涂层的DTA曲线，分析了涂层的晶化温度，采用HX-1000型显微硬度计测量涂层的显微硬度，采用JSM-6700F型扫描电镜观察涂层的微观形貌和截面形貌，采用谱分析的方法分析涂层正面和截面的成分变化。结果表明，制备的非晶涂层组织致密，均匀，涂层与基材之间为冶金与机械相结合共同作用的成形特征；非晶涂层的显微硬度达946～1018HV25，晶化温度为433℃。

关键词：棒材等离子喷涂非晶涂层成形特征

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我国古代文献中关于灵芝的论述

中国食用菌 2019年第8期38卷 102-104页

作者：唐文昊贵州师范大学廉政文化理论研究中心贵州贵阳550025

中国是世界上最早进行灵芝采摘和使用的国家。中国古代书籍中对灵芝进行了大量的记载和详细的描述。但是灵芝什么时候被记载在书籍上的,药物学界一直众说纷纭。通过对'芝''灵芝''芝草'等字眼进行相关书籍的查阅后,发现《山海经·中次七... 详细信息

中国是世界上最早进行灵芝采摘和使用的国家。中国古代书籍中对灵芝进行了大量的记载和详细的描述。但是灵芝什么时候被记载在书籍上的,药物学界一直众说纷纭。通过对'芝''灵芝''芝草'等字眼进行相关书籍的查阅后,发现《山海经·中次七经》《孔子家语·六本》《礼记·内则》《列子·汤问》《楚辞·山鬼》《论衡·初篇》《抱朴子》及《道藏》等不是进行灵芝起源记载的书籍,而《神农本草经》才是对灵芝进行最早记载的著作,只不过著作中对灵芝的称呼是赤芝。

关键词：古代文献灵芝论述

Recent progress on fabrication, spectroscopy properties, and device applications in Sn-doped CdS micro-nano structures

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Journal of Semiconductors 2024年第9期45卷 7-27页

作者： Bo Cao Ye Tian Huan Fei wen hao Guo Xiaoyu Wu Liangjie Li Zhenrong Zhang Lai Liu Qiang Zhu Jun tang Jun Liu State Key Laboratory of Dynamic Measurement Technology School of Semiconductors and PhysicsNorth University of ChinaTaiyuan 030051China Shanxi Province Key Laboratory of Quantum Sensing and Precision Measurement North University of ChinaTaiyuan 030051China School of Instrument Science and Technology Xi'an Jiaotong UniversityXi'an 710049China

One-dimensional semiconductor materials possess excellent photoelectric properties and potential for the construction of integrated nanodevices. Among them, Sn-doped CdS has different micro-nano structures, including nanoribbons,nanowires, comb-like structures, and superlattices, with rich optical microcavity modes, excellent optical properties, and a wide range of application fields. This article reviews the research progress of various micrometer structures of Sn-doped CdS, systematically elaborates the effects of different growth conditions on the preparation of Sn-doped CdS micro-nano structures, as well as the spectral characteristics of these structures and their potential applications in certain fields. With the continuous progress of nanotechnology, it is expected that Sn-doped CdS micro-nano structures will achieve more breakthroughs in the field of optoelectronics and form cross-integration with other fields, jointly promoting scientific, technological, and social development.

关键词： Sn-doped CdS micro-nano structure superlattices optical microcavity