检索结果-内蒙古大学图书馆

3rd International Academic Exchange Conference on Science and Technology Innovation, IAECST 2021

作者： Zhou, Chao guo, Danyang Li, Jiaqi Rong, Aiqiong Liang, Sihua Lin, xuwen Guangzhou City University of Technology College of Mechanical Engineering Guang Zhou510800 China

ISBN: (纸本)9781665402675

This paper conducts scientific research on the joint scheduling of vehicles and personnel based on the distribution of car-sharing use[1], so as to propose an optimal control scheduling scheme that improves car utilization while making customers more satisfied and maximizing corporate profits. To begin with, we used the partitioning method to pre-processing the shared vehicle location data set, and use Excel software to disassemble the coordinate information. We need to divide the data according to the parking points, count the data according to different parking points, make descriptive statistics on the total number of parked vehicles at the parking points, and then analyze the use distribution of car-sharing[2]. Additionally, a joint car-sharing scheduling optimization model is built and the model is improved, which is then transformed into a two-layer mTSP model[3]. The upper model is an mTSP model with uncertain number of vehicles with time windows, while the lower model is an mTSP model with uncertain number of persons with time windows. At the same time, the genetic algorithm is used to solve the model, and after the operation of selection, cross over and variation combined with the simulated annealing strategy[4] to achieve better optimization results and construct the most beneficial scheduling solution for the enterprise. © 2021 IEEE.

关键词： Genetic algorithms

来源：评论

学校读者我要写书评

暂无评论

TMRGM: A Template-Based Multi-Attention Model for X-Ray Imaging Report Generation

Journal of Artificial Intelligence for Medical Sciences

引用

Journal of Artificial Intelligence for Medical Sciences 2021年第1期2卷 21-32页

作者： Wang, xuwen Zhang, Yu guo, Zhen Li, Jiao Institute of Medical Information and Library Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China

The rapid growth of medical imaging data brings heavy pressure to radiologists for imaging diagnosis and report writing. This paper aims to extract valuable information automatically from medical images to assist doctors in chest X-ray image interpretation. Considering the different linguistic and visual characteristics in reports of different crowds, we proposed a template-based multi-attention report generation model (TMRGM) for the healthy individuals and abnormal ones respectively. In this study, we developed an experimental dataset based on the IU X-ray collection to validate the effectiveness of TMRGM model. Specifically, our method achieves the BLEU-1 of 0.419, the METEOR of 0.183, the ROUGE score of 0.280, and the CIDEr of 0.359, which are comparable with the SOTA models. The experimental results indicate that the proposed TMRGM model is able to simulate the reporting process, and there is still much room for improvement in clinical application.

关键词：

来源：评论

学校读者我要写书评

暂无评论

腓骨高位截骨术对KOA患者胫骨关节间隙角的影响

引用

山西卫生健康职业学院学报 2023年第5期33卷 20-21页

作者：郭宝庆宋旭文浚县人民医院河南鹤壁458000

目的:观察膝骨性关节炎(KOA)患者使用腓骨高位截骨术联合关节镜下膝关节清理术治疗对患者胫骨关节间隙角的影响。方法:选取KOA患者80例分成观察组与对照组各40例,对照组实施关节镜下膝关节清理术,观察组在对照组基础上联合腓骨高位截骨... 详细信息

目的:观察膝骨性关节炎(KOA)患者使用腓骨高位截骨术联合关节镜下膝关节清理术治疗对患者胫骨关节间隙角的影响。方法:选取KOA患者80例分成观察组与对照组各40例,对照组实施关节镜下膝关节清理术,观察组在对照组基础上联合腓骨高位截骨术,比较患者Lysholm评分、膝关节评估表(IKDC)、胫骨关节间隙角以及胫骨关节间隙的变化。结果:术后,两组患者Lysholm评分以及IKDC评分均有提升,观察组高于对照组;两组患者胫骨关节间隙均有增加,观察组大于对照组;两组患者胫骨关节间隙角均有降低,观察组低于对照组;差异均有统计学意义(P<0.05)。结论:治疗KOA应用腓骨高位截骨术联合关节镜下膝关节清理术能明显改善胫骨关节间隙角,降低炎症的同时,显著提升患者膝关节的功能恢复。

关键词：膝骨性关节炎截骨术关节镜膝关节

来源：评论

学校读者我要写书评

暂无评论

High-performance carbon-electrode-based self-powered optoelectronic synaptic devices

引用

Science China(Information Sciences) 2024年第5期67卷 339-340页

作者： Wen HUANG xuwen XIA Huixing ZHANG Tenglong guo Pengjie HANG Bin LI Jiawei TANG Biao LI Chen ZHU Lei WANG Deren YANG Xuegong YU Xing'ao LI Jiangsu Provincial Engineering Research Center of Low Dimensional Physics and New Energy & School of Science Nanjing University of Posts and Telecommunications College of Integrated Circuit Science and Engineering Nanjing University of Posts and Telecommunications State Key Laboratory of Silicon and Advanced Semiconductor Materials Zhejiang University

A two-terminal self-powered optoelectronic structure could mimic synaptic functions of a human brain synapse unit(Figure 1(a)) based on the photovoltaic effects [1], demonstrating the potential for decreasing energy consumption for future computing. However, current self-powered optoelectronic synaptic devices face issues of stability and cost,which mainly arise from noble metal electrodes and independent hole transport layers used in these structures. Substituting low-cost carbon for these metal electrodes and carrier transport layers may promise to solve these challenges.

关键词： electrode devices carbon high based optoelectronic performance self-powered synaptic

来源：评论

学校读者我要写书评

暂无评论

从有路导航走向无路导航

引用

自然资源遥感 2024年第4期36卷 1-8页

作者：张过秦绪文朱春阳王善绣徐青运晓宇武汉大学测绘遥感信息工程国家重点实验室武汉430079 中国自然资源航空物探遥感中心北京100083 中国卫星导航定位应用管理中心北京100088 战略支援部队信息工程大学地理空间信息学院郑州450001

在有路导航日臻成熟的背景下,该文结合车辆在复杂非结构化环境下对导航服务的需求,提出了无路导航这一多学科交叉研究方向。首先,介绍了有路导航的发展及无路导航的需求场景,基于车辆通过性的4个具体方面,提出了从有路导航走向无路导航... 详细信息

在有路导航日臻成熟的背景下,该文结合车辆在复杂非结构化环境下对导航服务的需求,提出了无路导航这一多学科交叉研究方向。首先,介绍了有路导航的发展及无路导航的需求场景,基于车辆通过性的4个具体方面,提出了从有路导航走向无路导航过程中的科学问题,包括地理-地质通行要素精细化遥感探测、无路区域软地面土壤参数遥感获取、天候变化对地面特性的定量影响机理,阐明了无路导航的研究导向;然后,归纳了车辆通过性计算与表征技术、无路区域数字路网构建技术、无路导航智能路径规划技术等关键技术,提出了“无路区域有路化”的技术途径与无路区域数字路网的概念,构建了无路导航技术体系;最后,结合无路导航相关技术的实践,展现了其应用潜力。无路导航的研究将进一步丰富导航的内涵,拓宽导航应用边界。

关键词：无路导航导航电子地图通过性数字路网无路区域有路化

来源：评论

学校读者我要写书评

暂无评论

Environmental Monitoring Technology for Marine Natural Gas Hydrate

Environmental Monitoring Technology for Marine Natural Gas H...

引用

2023年中国地球科学联合学术年会

作者： Liang Qianyong Ye Jianliang Qin xuwen Dong Yifei Xie Wenwei Zhong Chao guo Binbin Guangzhou Marine Geological Survey China Geological Survey

Natural gas hydrate(NGH) is considered as one of the new clean energy sources of the 21st century with the highest potential. The environmental issues of NGH production have attracted the close attention of scientists in various countries. In 2017 and 2020, China Geological Survey successfully organized two rounds of NGH production test in the South China Sea, which set a number of world records, marking a significant leap from "exploratory test production" to "experimental test production", and also indicating an important breakthrough in environmental safety of NGH production test. China Geological survey attaches great importance to the environmental impact of NGH research work. Since 2011, we have research methane leakage, underwater landslides, subsidence, and marine ecological change may cause by NGH exploration. And the marine environment baseline characteristics before the production test in Shenhu sea area have been clarified. In addition, environmental security has also been effectively guaranteed via a comprehensive environmental monitoring system built during the NGH production test. The monitoring system considered methane leakage, seabed subsidence, marine environment and sea surface atmosphere environment. The whole process was monitored via multiple means, in multiple layers, in all domains, and in real time. After the production test, the marine environment tracking survey have been carried out in time to effectively discuss and verify the environmental impact of NGH production test. The results of the two rounds of NGH production test showed that the content of dissolved methane in seawater and the seabed environment characteristics is consistent with the background values, indicating that the two rounds of production test did not cause seabed landslide, methane leakage and other environmental problems, and make no difference on the marine environment basically.

关键词： Natural gas hydrates Production test Environmental monitoring Environmental impact

来源：评论

学校读者我要写书评

暂无评论

Gradient tumor microenvironment-promoted penetrating micelles for hypoxia relief and immunosuppression reversion in pancreatic cancer treatment

引用

ACTA BIOMATERIALIA 2023年第1期167卷 387-400页

作者： Luo, Yifan Li, Chao Zhang, Yiwen Liu, Peixin Chen, Hongyi Zhao, Zhenhao Wang, Yu Zhou, Zheng Song, Haolin Su, Boyu Li, Chufeng Li, xuwen Zhang, Tongyu You, Haoyu Wu, Yuxing Tian, Zonghua Zhang, Shilin guo, Yun Fan, Hongrui Chen, Qinjun Jiang, Chen Sun, Tao Fudan Univ Minhang Hosp Sch Pharm Dept Pharmaceut Shanghai 201203 Peoples R China Fudan Univ MOE Frontiers Ctr Brain Sci Shanghai 201203 Peoples R China

The tumor microenvironment of pancreatic ductal adenocarcinoma (PDAC) is the main block for the penetration of chemotherapy. In the tumor microenvironment, a dense matrix composed of fibrin is formed on the exterior, while the interior is featured by high reduction, hypoxia and low pH. How to match the special microenvironment to on-demand drug release is the key to improve chemotherapeutic efficacy. Herein, a microenvironment-responsive micellar system is developed to deepen tumoral penetration. Briefly, the conjugation of a fibrin-targeting peptide to PEG-poly amino acid has been utilized to achieve accumulation of micelles in the tumor stroma. By modification of micelles with hypoxia-reducible nitroimidazole which becomes protonated under acidic conditions, their surface charge is more positive, facilitating deeper penetration into tumors. Paclitaxel was loaded onto the micelles via a disulfide bond to enable glutathione (GSH)-responsive release. Therefore, the immunosuppressive microenvironment is relived through the alleviation of hypoxia and depletion of GSH. Hopefully, this work could establish paradigms by designing sophisticated drug-delivery systems to tactfully employ and retroact the tamed tumoral microenvironment to improve the therapeutic efficacy based on understanding the multiple hallmarks and learning the mutual regulation.

关键词： Pancreatic cancer Penetration Nitroimidazole Tumor hypoxia Gemcitabine

来源：评论

学校读者我要写书评

暂无评论

Community structure of benthic macroinvertebrates in native and introduced mangroves of northern Beibu Gulf, China: Implication for restoring mangrove ecosystems

引用

MARINE POLLUTION BULLETIN 2022年 180卷 113796页

作者： Zhen, Wenquan Kwan, Kit Yue Wang, Chun-Chieh Wu, xuwen guo, guo Deng, Qiuxiang Huang, Xing Wang, Xueping Zhu, Junhua Xu, Peng Beibu Gulf Univ Coll Marine Sci Beibu Gulf Ocean Dev Res Ctr Guangxi Key Lab Beibu Gulf Marine Biodivers Conse Qinzhou 535011 Peoples R China Guangxi Acad Sci Guangxi Beibu Gulf Marine Res Ctr Guangxi Key Lab Marine Environm Sci Nanning 530007 Peoples R China Chinese Acad Sci Inst Oceanol Qingdao 266071 Peoples R China Guangxi Beihai Coastal Natl Wetland Pk Beihai 536000 Peoples R China

Introduced mangroves are widely used to restore mangrove ecosystems in South China. Results of potential impacts on indicative benthic macroinvertebrates are divergent. We explored the community structure of benthic macroinvertebrates in the mangrove ecosystem of northern Beibu Gulf, China across four habitats: native Avicennia marina mangrove, introduced Laguncularia racemosa mangrove, native-introduced mixed mangrove, and unvegetated intertidal flat. Based on the Hill number, community structure was estimated from the dimensions of estimated species richness, diversity, evenness, and species composition similarity. Benthic macroinvertebrates in the unvegetated flat significantly differed from the other three assemblages in mangroves;introduced L. racemosa mangrove had relatively distinct benthic macroinvertebrate assemblage from the native A. marina and the mixed mangroves, with lower species richness and similarity but higher diversity and evenness. Considering the lack of unanimous conclusion of potential impact on benthic macroinvertebrates under complex species interactions, native mangroves should be of top priority in ecosystem restoration.

关键词： Taxonomic diversity Species composition similarity Hill number Tidal flat Avicennia marina Laguncularia racemosa

来源：评论

学校读者我要写书评

暂无评论

Analysis of the analgesic effects of tricyclic antidepressants on neuropathic pain, diabetic neuropathic pain, and fibromyalgia in rat models

引用

SAUDI JOURNAL OF BIOLOGICAL SCIENCES 2020年第9期27卷 2485-2490页

作者： Qin, Zhenlong Wang, Lei Li, guoyan Qian, xuwen Zhang, Jie guo, Ying Liu, guokai Beijing Univ Chinese Med Affiliated Hosp 3 Dept Anesthesiol Beijing 100029 Peoples R China Beijing Univ Chinese Med Dongzhimen Hosp Dept Anesthesiol 5 Haiyuncang Hutong Beijing 100700 Peoples R China

Objective: To investigate the analgesic effect of amitriptyline on neuropathic pain model rats, diabetic neuropathic pain model rats and fibromyalgia model rats. Methods: The healthy male Sprague wrote - Dawley (SD) rats were taken as the research object, and they were randomly divided into model group (group A), beside the sciatic nerve and injection of 5 mm amitriptyline group (group B), beside the sciatic nerve and injection of 10 mm amitriptyline group (group C), beside the sciatic nerve and injection of 15 mm amitriptyline group (group D), intraperitoneal injection of amitriptyline group (group E). Pain induced by selective injury of sciatic nerve branches in rats, pain induced by chronic compression of sciatic nerve, diabetic neuropathic pain and fibromyalgia were conducted to determine the pain threshold of mechanical stimulation in rats after drug administration. Results: The pain threshold of mechanical stimulation in the local amitriptyline group (group B, C, D) was significantly higher than that in the group A and group E at each time point after drug treatment, and the pain threshold of mechanical stimulation gradually increased with the increase of concentration. There was no statistically significant difference in mechanical stimulation pain threshold between group A and group E at each time point after drug treatment. Conclusion: Para-sciatic injection of amitriptyline at different concentrations has analgesic effects on neuropathic pain, diabetic neuropathic pain and fibromyalgia in rat models, and amitriptyline directly ACTS on the local sciatic nerve. (C) 2020 The Author(s). Published by Elsevier B.V. on behalf of King Saud University.

关键词： Tricyclic antidepressants Rat model Neuropathic pain Diabetic neuropathic pain Fibromyalgia

来源：评论

学校读者我要写书评

暂无评论

Research progress, problems and prospects of mine water treatment technology and resource utilization in China

引用

CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY 2020年第4期50卷 331-383页

作者： Zhang, Siyu Wang, Hao He, xuwen guo, Shaoqing Xia, Yu Zhou, Yuexi Liu, Kai Yang, Shipeng China Univ Min & Technol Sch Chem & Environm Engn Beijing 100083 Peoples R China Chinese Res Inst Environm Sci Res Ctr Water Pollut Control Technol Beijing Peoples R China Chinese Acad Sci Res Ctr Ecoenvironm Sci Beijing Peoples R China Tsinghua Univ Sch Environm Beijing Peoples R China

The National Development and Reform Commission and the Energy Bureau jointly issued the 'Plant Water Utilization Development Plan' on January 29, 2013, which requires that China should gradually establish a more complete legal system, macro management and technical support system for mine water in 2015. But so far, due to the influence of geological conditions and other factors, the impurity composition and content of mine water is very different. Based on the comprehensive summary of the theory, method, application technology, practical engineering and processing technology of mine water disaster and its reutilization in China. This article systematically analyzed the latest research progress and achievements, which include basic theory, hydrogeology (supplement) exploration, advanced detection and monitoring as well as early warning. These can further promote application of current technology, develop new technology and methods, point out the challenges and the existing problems of the mine water field, the gaps with requirements of fast, intensive, and large-scale development of the coal industry in China. Finally, the development trends, future important scientific innovation and key technology were discussed. The prospects of the industry and technology were also forecast.

关键词： Mine water resource utilization treatment technology

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：