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Neighbor Library-Aware Graph Neural Network for Third Party Library Recommendation

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Tsinghua Science and Technology 2023年第4期28卷 769-785页

作者： Ying jin Yi zhang Yiwen zhang School of Artificial Intelligence and Big Data Hefei UniversityHefei 230601China School of Computer Science and Technology Anhui UniversityHefei 230601China

Modern software development has moved toward agile growth and rapid delivery,where developers must meet the changing needs of users *** such a situation,plug-and-play Third-Party Libraries(TPLs)introduce a considerable amount of convenience to ***,selecting the exact candidate that meets the project requirements from the countless TPLs is challenging for *** works have considered setting up a personalized recommender system to suggest TPLs for ***,these approaches rarely consider the complex relationships between applications and TPLs,and are unsatisfactory in accuracy,training speed,and convergence *** this paper,we propose a new end-to-end recommendation model called Neighbor Library-Aware Graph Neural Network(NLA-GNN).Unlike previous works,we only initialize one type of node embedding,and construct and update all types of node representations using Graph Neural Networks(GNN).We use a simplified graph convolution operation to alternate the information propagation process to increase the training efficiency and eliminate the heterogeneity of the app-library bipartite graph,thus efficiently modeling the complex high-order relationships between the app and the *** experiments on large-scale real-world datasets demonstrate that NLA-GNN achieves consistent and remarkable improvements over state-of-the-art baselines for TPL recommendation tasks.

关键词： Third-Party Library(TPL) TPL recommendation Graph Neural Network(GNN) bipartite graph

Effect of Tip Flange on Tip Leakage Flow of Small Axial Flow Fans

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Journal of Thermal Science 2014年第1期23卷 45-52页

作者： zhang Li jin Yingzi jin Yuzhen The Province Sky Lab of Fluid Transmission Technology Zhejiang Sci-Tech University

Aerodynamic performance of an axial flow fan is closely related to its tip clearance leakage flow. In this paper, the hot-wire anemometer is used to measure the three dimensional mean velocity near the blade tips. Moreover, the filtered N-S equations with finite volume method and RNG k-s turbulence model are adopted to carry out the steady simulation calculation of several fans that differ only in tip flange shape and number. The large eddy simulation and the FW-H noise models are adopted to carry out the unsteady numerical calculation and aerodynamic noise prediction. The results of simulation calculation agree roughly with that of tests, which proves the numerical calculation method is *** effects of tip flange shapes and numbers on the blade tip vortex structure and the characteristics are analyzed. The results show that tip flange of the fan has a certain influence on the characteristics of the fan. The maximum efficiencies for the fans with tip flanges are shifted towards partial flow with respect to the design point of the dattun fan. Furthermore, the noise characteristics for the fans with tip flanges have become more deteriorated than that for the datum fan. Tip flange contributes to forming tip vortex shedding and the effect of the half-cylinder tip flange on tip vortex shedding is obvious. There is a distinct rela- tionship between the characteristics of the fan and tip vortex *** research results provide the profitable reference for the internal flow mechanism of the performance optimization of small axial flow fans.

关键词： Tip Flange Tip Leakage Flow Small Axial Flow Fan Performance

On-orbit real-time magnetometer bias determination for micro-satellites without attitude information

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Chinese Journal of Aeronautics 2015年第5期28卷 1503-1509页

作者： zhang Zhen Xiong Jianping jin jin Department of Precision Instrument Tsinghua University Space Center Tsinghua University

Due to the disadvantages such as complex calculation, low accuracy of estimation, and being non real time in present methods, a new real-time algorithm is developed for on-orbit mag- netometer bias determination of micro-satellites without attitude knowledge in this paper. This method uses the differential value approach. It avoids the impact of quartic nature and uses the iterative method to satisfy real-time applications. Simulation results indicate that the new real-time algorithm is more accurate compared with other methods, which are also tested by an experiment system using real noise data. With the new real-time algorithm, a magnetometer calibration can be taken on-orbit and will reduce the demand for computing power effectively.

关键词： Magnetometer bias:On-orbit determinationMicro-satellite Attitude-independent Real-time

Evaluation of artificial tears on cornea epithelium healing

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International Journal of Ophthalmology(English edition) 2018年第7期11卷 1096-1101页

作者： Ying zhang Xiao-you Lu Ren-Jian Hu Fang-Li Fan Xiu-Ming jin Eye Center Second Affiliated Hospital of Zhejiang University School of Medicine Department of Ophthalmology Zhejiang Xiaoshan Hospital

AIM： To observe the efficacy of different artificial eye drops on corneal epithelium healing in rabbit. METHODS： Thirty-five rabbits with 6 mm diameter central corneal epithelium removed were randomly assigned to six groups： 0.9% normal saline（NS） group, 0.1% hyaluronate（HA） group, 0.3% HA group, Tears Naturale Free？（TNF） group, 0.4% polyethylene glycol（PEG） group, 0.5% carboxymethyl cellulose（CMC） group and blank control group. Treatments were administered topically four times daily. Corneal epithelium healing was evaluated by the percentage reduction in wound area at 24, 36, 48, 60, and 72 h after removal of the corneal epithelium. Cornea re-epithelialization was also assessed by histological analysis and electron microscopy. RESULTS： All corneal wounds completely re-epithelialized in less than 72 h. The average re-epithelialization time was 47.61±4.25 h in the 0.3% HA group and 49.72±1.05 h in the 0.9% NS group, followed by 0.1% HA, TNF, 0.4% PEG, 0.5% CMC, and lastly by the control group. Compared to the control group, there were significant differences among 0.3% HA, 0.9% NS, PEG, and TNF（P〈0.05） groups. At the first 24 h, re-epithelialization at the 0.3% HA, TNF, and 0.9% NS treatment groups were significantly faster than the other groups. At 48 h post-wounding, corneal epithelium is nearly completing re-epithelialization at 0.3% HA and 0.9% NS treatment groups. Electron microscopy revealed that there were a large number of vacuoles in the cells of the 0.9% NS group at 72 h. CONCLUSION： Artificial tears promote corneal reepithelium varied in the efficacy. Obviously, all artificial eye drops better than blank group. In the process of corneal healing, corneal epithelium cells suffered from hypoxia caused by NS.

关键词： artificial tears cornea re-epithelialization healing rabbit vesicles

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World Journal of Clinical Cases 2025年第6期13卷 24-29页

作者： Wen-jin Yuan Yi-Juan Zheng Bing-Rong zhang Yi-Jie Lin you Li Yan-Yan Qiu Xue-Ping Yu Department of Infection Disease Clinical Medical Research Center for Bacterial and Fungal Infectious Diseases of Fujian provinceFujian Medical University Affiliated First Quanzhou HospitalQuanzhou 362000Fujian ProvinceChina

BACKGROUND Hydroxyurea,an antimetabolite,is frequently prescribed for various hemato-logical disorders,and its common side effects include gastrointestinal problems,cutaneous or mucosal lesions and pyrexia/*** SUMMARY This study reports the case of a 67-year-old woman who developed recurrent abdominal pain after 10 years of continuous hydroxyurea therapy for primary *** revealed an ileocecal *** discontinuing hydroxyurea therapy for 6 months,follow-up colonoscopy showed a significant reduction in the *** We consider cecal ulcers as a rare complication of hydroxyurea therapy which typically resolves upon stopping the drug.

关键词： Hydroxyurea Ulcer Abdominal pain Thrombocythemia Colonoscopy Case report

Wave Attenuation Performance and the Influencing Factors of A Lower Arc-Plate Breakwater

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China Ocean Engineering 2020年第1期34卷 89-98页

作者： LI Xue-yan WANG Qing you Zai-jin GUO Wei-jun zhang Jun-bin ZHAN Chao zhang Zhi-chen WANG Li-xue LI Qin Coast Institute Ludong UniversityYantai 264025China Dalian Maritime University Dalian 116026China Institute of Sea-Crossing Engineering Ludong UniversityYantai 264024China College of Environmental Sciences and Engineering Dalian Maritime UniversityDalian 116026China

Comprehensive experimental and numerical studies have been undertaken to investigate wave energy dissipation performance and main influencing factors of a lower arc-plate breakwater. The numerical model, which considers nonlinear interactions between waves and the arc-plate breakwater, has been constructed by using the velocity wave- generating method, the volume of fluid (VOF) method and the finite volume method. The results show that the relative width, relative height and relative submergence of the breakwater are three main influencing factors and have significant influence on wave energy dissipation of the lower arc-plate open breakwater. The transmission coefficient is found to decrease with the increasing relative width, and the minimum transmission coefficient is 0.15 when the relative width is 0.45. The reflection coefficient is found to vary slightly with the relative width, and the maximum reflection coefficient is 0.53 when the relative width is 0.45. The transmission and reflection coefficients are shown to increase with the relative wave height for approximately 85% of the experimental tests when the relative width is 0.19 0.45. The transmission coefficients at relative submergences of 0.04, 0.02 and 0 are clearly shown to be greater than those at relative submergences of 0.02 and 0.04, while the reflection coefficient exhibits the opposite relationship. After the wave interacts with the lower arc-plate breakwater, the wave energy is mainly converted into transmission, reflection and dissipation energies. The wave attenuation performance is clearly weakened for waves with greater heights and longer periods.

关键词： arc-plate breakwater wave attenuation performance influencing factors VOF method

Impacts of Different Dynamic Factors on the Saltwater Intrusion in the Northern Branch of the Yangtze Estuary

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China Ocean Engineering 2019年第6期33卷 673-684页

作者： WANG jin-hua zhang De-bin zhang Wei-sheng zhang jin-shan State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Nanjing Hydraulic Research InstituteNanjing 210029China College of Harbor Coastal and Offshore EngineeringHohai UniversityNanjing 210098China

A 3-D baroclinic numerical model is established to study the temporal and spatial distribution of salinity in the Northern Branch(NB) of the Yangtze Estuary(YE) in response to river runoff, wind and currents. The idealized,process-oriented studies show that the lower river runoff in the dry season is the main driving factor for the spilling over from the NB to the Southern Branch(SB). The NB takes longer time to get in dynamic stable state compared with the SB, as the runoff transfers from the wet season to the dry season. The vertical stratification intensity of the NB has obvious periodic phenomena in the dry season, and the stratification strength is enhanced under the action of low runoff and north wind, which further weakens the vertical transport of water. Momentum balance analysis suggested that the landward net flux increases when considering the influence of the moderate north wind, and the landward flux will enhance if considering the boundary current during the spring tide. With the influence of the boundary current, increases the average salinity of the NB, as well as the intrusion degree from the NB to the *** indicates that the nearshore ocean current of the Yellow Sea is an important factor affecting the saltwater intrusion in the NB of the YE.

关键词： Yangtze Estuary saltwater intrusion ocean currents vertical stratification FVCOM

Progress on AlGaN-based solar-blind ultraviolet photodetectors and focal plane arrays

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Light(Science & Applications) 2021年第6期10卷 976-1006页

作者： Qing Cai Haifan you Hui Guo jin Wang Bin Liu Zili Xie Dunjun Chen Hai Lu youdou Zheng Rong zhang Key Laboratory of Advaneed Photonic and Electronic Materials School of Electronic Science and EngineeringNanjing UniversityNanjing 210093China Collaborative In novation Center for Optoelectronic Semiconductors and Efficient Devices Department of PhysicsXiamen UniversityXiamen 361005China lnstitute of Future Display Tech no logy Tan Kah Kee Inno vati on LaboratoryXiamen 361102China

Solar-blind ultraviolet(UV)photodetectors(PDs)have attracted tremendous attention in the environmental,industrial,military,and biological *** a representative Ill-nitride material,AlGaN alloys have broad development prospects in the field of solar-blind detection due to their superior properties,such as tunable wide bandgaps for intrinsic UV *** recent decades,a variety of AlGaN-based PDs have been developed to achieve high-precision solar-blind UV *** integrated optoelectronic technology advances,AlGaN-based focal plane arrays(FPAs)are manufactured and exhibit outsta nding solar-blind imaging *** sidering the rapid development of AlGaN detection techniques,this paper comprehensively reviews the progress on AlGaN-based solar-blind UV PDs and ***,the basic physical properties of AlGaN are *** epitaxy and p-type doping problems of AlGaN alloys are then *** PDs,including photoconductors and Schottky,metal-semiconductor-metal(MSM),p-i-n,and avalanche photodiodes(APDs),are dem on strated,and the physical mechanisms are analyzed to improve device ***,this paper summarizes imaging technologies used with AlGaN FPAs in recent ***!ng from the development of AlGaN materials and optoelectronic devices,solar-blind UV detection technology is greeted with significant revolutions.

关键词： optoelectronic arrays ultraviolet

减氮及有机肥替代对旱地冬小麦干物质积累、转运、分配和产量的影响

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作物学报 2025年第1期51卷 207-220页

作者：张军胡川周起晖任开明董誓言刘傲寒吴金芝黄明李友军河南科技大学农学院河南洛阳471023 商洛学院生物医药与食品工程学院陕西商洛726000

探究减氮及有机肥替代对旱地冬小麦产量形成和经济效益的影响,为实施化肥减量和有机肥替代提供理论和技术依据。2021-2023年度,基于2019年开始设置在黄土高原和黄淮海平原交汇处典型旱地冬小麦产区(河南洛宁和河南孟津)的定位试验,研究... 详细信息

探究减氮及有机肥替代对旱地冬小麦产量形成和经济效益的影响,为实施化肥减量和有机肥替代提供理论和技术依据。2021-2023年度,基于2019年开始设置在黄土高原和黄淮海平原交汇处典型旱地冬小麦产区(河南洛宁和河南孟津)的定位试验,研究了冬小麦干物质积累转运分配特性、氮肥干物质生产效率、产量及其构成要素和经济效益。试验设置不施氮肥(NN)、农户施氮(FN)、基于FN减氮20%(RN)和RN基础上20%氮肥用有机肥替代(OSN)4个处理。结果表明:(1)与FN相比,RN处理降低了小麦拔节期、开花期和成熟期的干物质积累量、花前干物质转运量以及成熟期茎鞘、穂轴+颖壳和籽粒的干物质分配量,但对籽粒产量无显著影响。(2)与FN和RN相比, OSN处理提高了各生育阶段的氮肥干物质生产效率,从而增加了拔节期、开花期、成熟期的干物质积累量,而且提高了花前干物质转运量、花后干物质积累量、花后干物质积累量对籽粒的贡献率,进而使成熟期地上部各器官的干物质分配量均得到显著提高,最终使籽粒产量分别显著增加15.03%和17.12%,经济效益增加3.84%和4.23%。(3)小麦产量与花前干物质转运量、花后干物质积累量和花后干物质积累量对籽粒的贡献率呈极显著正相关,与花前干物质转运量对籽粒的贡献率呈极显著负相关。综上,在雨养条件下,小麦季施氮量为172kghm^(–2) (夏休闲-冬小麦)和192kg hm^(–2) (夏玉米-冬小麦)的基础上,OSN处理提高了氮肥干物质生产效率,增加各生育时期的干物质积累量,其花前干物质转运量和花后干物质积累量的协同增加使其获得了最高产量,实现增产增收,适宜在产量水平为5000kghm^(–2)的雨养旱地冬小麦高产栽培中应用。

关键词：旱地冬小麦减氮有机肥替代干物质积累转运产量经济效益

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