检索结果-南通市图书馆

Countermeasures to Achieve High-quality Development of Dairy Industry in Xinjiang:A Case Study of Tianrun Dairy Industry

在线全文

学校读者我要写书评

暂无评论

Asian Agricultural Research 2022年第5期14卷 1-5页

作者： Chunming LIANG Jinding LIU xiaobo XUE FARRUH ANWAR Lijun cao Xinjiang Dairy Quality Monitoring Center Urumqi 830000 China Institute of Animal Husbandry Economy and Information Xinjiang Academy of Animal Sciences Urumqi 830011 China Institute of Animal Husbandry Quality Standards Xinjiang Academy of Animal Husbandry Sciences (Xinjiang Breeding Sheep and Wool Cashmere Quality Safety Supervision and Inspection Center) Urumqi 830000 China

As a high-quality milk source base in China,Xinjiang has an innate foundation for the development of modern high-quality milk *** this paper,it was pointed out that the uneven distribution of interests between the upstream and downstream of the industry was the influencing factor restricting the development of modern dairy industry in *** the same time,the related information of Tianrun Group,which was the leading enterprise in Xinjiang,was *** to analysis,it was found that through the construction and development of large-scale,standardized and modern milk source base,balance of the upstream and downstream interests,improvement of the combination system of planting and breeding,the added value of products was enhanced and the anti risk ability of enterprises was *** addition,it was also pointed out that under the leadership of leading enterprises,Xinjiang would embark on the development road of modern high-quality milk industry with circular economy,resource-saving,environment-friendly,quality and efficiency,operation-saving,independent innovation and industrial integration in the future.

关键词： Leading enterprise High-quality development Dairy industry Benefit distribution

A Spatial Pyramid Pooling Convolutional Neural Network for Smoky Vehicle Detection

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Spatial Pyramid Pooling Convolutional Neural Network for S...

旅游空间模式理论在四川历史文化城镇旅游开发中的运用与提升

第37届中国控制会议

作者： Yichao cao Chang Lu xiaobo Lu Xue Xia School of Automation Southeast University Key Laboratory of Measurement and Control of CSE Ministry of EducationSoutheast University School of Software Engineering University of Science and Technology of China

This paper investigates the automated recognition of smoky vehicles in surveillance videos. Most current methods recognize the smoky vehicle based on additional sensors. It is a challenging task to recognize smoky vehicle from images due to complex background and the movement of the vehicles. In this paper, we develop a spatial pyramid pooling convolutional neural network（SPPCNN） for smoky vehicle detection according to the image processing algorithm. Resizing the image will lead to shape changes of the smoke plume, and reducing the recognition rate. The spatial pyramid pooling layer is used to overcome this problem. The input of CNN is raw pictures of the tail of the vehicles which captured with method of foreground-background segmentation. This model extracts features from both the vehicles and the smoke by performing convolutions, and regarding the vehicle information as a prior. Experimental results show that this method achieved very low false alarm rates below 1% with detection rates above 80% on real video sequences.

关键词： Deep learning smoky vehicle convolutional neural networks image classification

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

四川师范大学学报（社会科学版） 2006年第4期33卷 117-122页

作者：曹丹李小波四川师范大学旅游学院成都610068

旅游空间模式反映了旅游者在空间上的活动行为以及旅游开发的空间组织形式。空间模式的研究对于把握旅游者的流动规律,找出旅游开发中的节点和关键地带,制定区域旅游发展战略有着重要的意义。通过回顾了四川历史文化城镇旅游开发以及国... 详细信息

旅游空间模式反映了旅游者在空间上的活动行为以及旅游开发的空间组织形式。空间模式的研究对于把握旅游者的流动规律,找出旅游开发中的节点和关键地带,制定区域旅游发展战略有着重要的意义。通过回顾了四川历史文化城镇旅游开发以及国内外旅游空间模式理论的研究成果,将Stewart和Vogt的经典旅游空间模式应用到四川省历史文化城镇的旅游开发中,可以总结出双核市场模式和依托型模式两种新的模式,以及四川旅游在空间结构形成过程中所出现的新问题和解决途径,使传统的模式理论得以完善和提升。

关键词：旅游空间模式历史文化城镇四川旅游开发

Structural variation during dog domestication: insights from gray wolf and dhole genomes

在线全文

学校读者我要写书评

暂无评论

National Science Review 2019年第1期6卷 110-122页

作者： Guo-Dong Wang Xiu-Juan Shao Bing Bai Junlong Wang xiaobo Wang Xue cao Yan-Hu Liu Xuan Wang Ting-Ting Yin Shao-Jie Zhang Yan Lu Zechong Wang Lu Wang Wenming Zhao Bing Zhang Jue Ruan Ya-Ping Zhang State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of Sciences Center for Excellence in Animal Evolution and Genetics Chinese Academy of Sciences Agricultural Genomics Institute Chinese Academy of Agricultural Sciences Medical Faculty Kunming University of Science and Technology Department of Pediatrics the First People's Hospital of Yunnan Province College of Pharmacology Soochow University Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province Kunming Institute of ZoologyChinese Academy of Sciences Department of Laboratory Animal Science Kunming Medical University Laboratory for Conservation and Utilization of Bio-Resources and Key Laboratory for Microbial Resources of the Ministry of Education Yunnan University Kunming College of Life Science University of Chinese Academy of Sciences Beijing Zoo Core Genomic Facility Beijing Institute of GenomicsChinese Academy of Sciences

Several processes like phenotypic evolution, disease susceptibility and environmental adaptations, which fashion the domestication of animals, are largely attributable to structural variations(SVs) in the ***, we present high-quality draft genomes of the gray wolf(Canis lupus) and dhole(Cuon alpinus) with scaffold N50 of 6.04 Mb and 3.96 Mb, respectively. Sequence alignment comprising genomes of three canid species reveals SVs specific to the dog, particularly 16 315 insertions, 2565 deletions, 443 repeats, 16 inversions and 15 translocations. Functional annotation of the dog SVs associated with genes indicates their enrichments in energy metabolisms, neurological processes and immune systems. Interestingly, we identify and verify at population level an insertion fully covering a copy of the AKR1 B1(Aldo-Keto Reductase Family 1 Member B) transcript. Transcriptome analysis reveals a high level of expression of the new AKR1 B1 copy in the small intestine and liver, implying an increase in de novo fatty acid synthesis and antioxidant ability in dog compared to gray wolf, likely in response to dietary shifts during the agricultural revolution. For the first time, we report a comprehensive analysis of the evolutionary dynamics of SVs during the domestication step of dogs. Our findings demonstrate that retroposition can birth new genes to facilitate domestication, and affirm the importance of large-scale genomic variants in domestication studies.

关键词： dog domestication genome assembly structural variation gray wolf dhole

Factors Associated with Thrombolysis Outcome in Ischemic Stroke Patients with Atrial Fibrillation

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Neuroscience Bulletin 2016年第2期32卷 145-152页

作者： Qiuyun Zhao xiaobo Li Wanli Dong Min Ye Yongjun cao Meijuan Zhang Qiantao Cheng Junshan Zhou Guofang Chen Ming Yu Shanshan Hong Xiue Wei Bei Wang Guiyun Cui Peng Zhang Hong Ding Rongzhen Xu Yan Chen Yun Xu Department of Neurology Affiliated Drum Tower Hospital of Nanjing University Medical School Nanjing 210008 China Department of Rehabilitation Medicine Nanjing First Hospital Nanjing Medical University Nanjing 210006China Jiangsu Stroke Research Collaborative Group Nanjing 210008 China Jiangsu Province Stroke Center for Diagnosis and Therapy Nanjing 210008 China Department of Neurology Northern Jiangsu People's Hospital Yangzhou 225001 China Department of Neurology The First Affiliated Hospital of Soochow University Suzhou 215006 China Department of Neurology Affiliated BenQ Hospital of Nanjing Medical University Nanjing 210019 China Department of Neurology The Second Affiliated Hospital of Soochow University Suzhou 215004 China Department of Neurology The Affiliated Huaian First People's Hospital of Nanjing Medical UniversityHuaian 223300 China Department of Neurology Nanjing First Hospital Nanjing Medical University Nar~jing 210006 China Department of Neurology Affiliated Xuzhou Central Hospital of Xuzhou Medical College Xuzhou 221009 China Department of Neurology Affiliated Hospital of Jiangsu University Zhenjiang 212002 China Department of Neurology Jiangyin People's HospitalJiangyin 214400 China Department of Neurology The Second Affiliated Hospital of Xuzhou Medical College Xuzhou 221006 China Department of Neurology The First People's Hospital of Lianyungang Lianyungang 222002 China Department of Neurology The First Affiliated Hospital of Xuzhou Medical College Xuzhou 221000 China Department of Neurology The Second Affiliated Hospital of Nanjing Medical University Nanjing 210003 China Department of Neurology Gaochun People's HospitalNanjing 211300 China Department of Neurology Drum Tower Hospital of Nanjing Medical University Nanjing 210008 China Jiangsu Key Laboratory for Molecular Medicine Nanjing University Medical School Nanjing 210008 China

The outcome of early intravenous thrombolysis for ischemic stroke in patients with atrial fibrillation（AF）is worse than that without thrombosis. How to increase the efficacy of intravenous thrombolysis for AF-related ischemic stroke remains largely unknown. In this study, we investigated factors that influence the effect of intravenous thrombolysis in these patients. Our results showed that thrombolysis was independently associated with a favorable outcome（P ／ 0.001） and did not influence the mortality of AF-related ischemic stroke, although it increased the risk of hemorrhage within 24 h after treatment. Risk factors for a poor outcome at admission were：heart failure（P = 0.045）; high systolic pressure（P = 0.039）; high blood glucose（P = 0.030）; and a high National Institutes of Health Stroke Scale（NIHSS） score（P ／ 0.001）. Moreover, high systolic pressure at admission（P = 0.007）, high blood glucose（P = 0.027）, and a high NIHSS score（P ／ 0.001） were independent risk factors for mortality at 3 months. Besides thrombolysis, a high NIHSS score（P = 0.006） and warfarin taken within 48 h before stroke onset（P = 0.032） were also independent risk factors for symptomatic hemorrhage within 24 h after treatment. Ischemic stroke patients with AF benefited from intravenous thrombolysis with recombinant tissue plasminogen activator within 4.5 h after stroke.

关键词： Ischemic stroke Atrial fibrillation Intravenous recombinant tissue plasminogen activator Intravenous thrombolysis Favorable outcome Risk factors

Intra-articular sustained-release of pirfenidone as a disease-modifying treatment for early osteoarthritis

在线全文

学校读者我要写书评

暂无评论

Bioactive Materials 2024年第9期39卷 255-272页

作者： xiaobo Zhu Mingde cao Kejia Li Yau-Tsz Chan Hon-Fai Chan Yi-Wah Mak Hao Yao Jing Sun Michael Tim-Yun Ong Kevin Ki-Wai Ho Chien-Wei Lee Oscar Kuang-Sheng Lee Patrick Shu-Hang Yung Yangzi Jiang Institute for Tissue Engineering and Regenerative Medicine School of Biomedical SciencesFaculty of MedicineThe Chinese University of Hong KongShatinHong Kong Special Administrative Region of ChinaChina School of Biomedical Sciences Faculty of MedicineThe Chinese University of Hong KongShatinHong Kong Special Administrative Region of Chin1China Department of Orthopaedics&Traumatology Faculty of MedicineThe Chinese University of Hong KongPrince of Wales HospitalShatinHong Kong Special Administrative Region of Chin1China Center for Neuromusculoskeletal Restorative Medicine Hong Kong Special Administrative Region of Chin1China Key Laboratory for Regenerative Medicine Ministry of EducationSchool of Biomedical SciencesFaculty of MedicineThe Chinese University of Hong KongHong Kong Special Administrative Region of Chin1China Department of Orthopaedic Surgery The First Affiliated HospitalSchool of MedicineZhejiang UniversityChina

Osteoarthritis(OA)is a major clinical challenge,and effective disease-modifying drugs for OA are still lacking due to the complicated pathology and scattered treatment *** early treatments are urgently needed to prevent OA *** excessive amount of transforming growth factorβ(TGFβ)is one of the major causes of synovial fibrosis and subchondral bone sclerosis,and such pathogenic changes in early OA precede cartilage *** we report a novel strategy of intra-articular sustained-release of pirfenidone(PFD),a clinically-approved TGFβinhibitor,to achieve disease-modifying effects on early OA *** found that PFD effectively restored the mineralization in the presence of excessive amount of TGFβ1(as those levels found in patients’synovial fluid).A monthly injection strategy was then designed of using poly lactic-co-glycolic acid(PLGA)microparticles and hyaluronic acid(HA)solution to enable a sustained release of PFD(the“PLGA-PFD+HA”strategy).This strategy effectively regulated OA progression in destabilization of the medial meniscus(DMM)-induced OA mice model,including preventing subchondral bone loss in early OA and subchondral bone sclerosis in late OA,and reduced synovitis and pain with cartilage preservation *** finding suggests the promising clinical application of PFD as a novel disease-modifying OA drug.

关键词： TGFβ1 signaling Osteoarthritis Subchondral bone Pirfenidone DMOAD

非晶态TiB2@C催化剂对NaAlH4合成和可逆储氢性能的影响

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

西安交通大学学报 2021年第1期55卷 10-16页

作者：曹志杰李丽江马晓波宁夏大学物理与电子电气工程学院银川750021

为了提高NaAlH4的吸放氢动力学性能,采用球磨烧结两步法制备了非晶态TiB2和C复合催化剂(简写为TiB2@C),并系统地研究了TiB2@C对NaAlH4合成和储氢性能的影响。研究结果表明,以NaH和Al为原料,添加质量分数为6%的TiB2@C作为复合催化剂,在... 详细信息

为了提高NaAlH4的吸放氢动力学性能,采用球磨烧结两步法制备了非晶态TiB2和C复合催化剂(简写为TiB2@C),并系统地研究了TiB2@C对NaAlH4合成和储氢性能的影响。研究结果表明,以NaH和Al为原料,添加质量分数为6%的TiB2@C作为复合催化剂,在室温、5 MPa氢压下进行球磨成功制备出NaAlH4。相对于球磨后的纯NaAlH4,复合体系的起始放氢温度、三步放氢过程的峰值温度和前两步放氢过程的表观活化能均大幅降低。吸放氢测试结果显示,TiB2@C能够有效地改善NaAlH4的吸放氢动力学性能,且复合体系在10次吸氢循环过程中表现出优异的循环稳定性。这一系列性能的改善主要源于TiB2@C催化剂中TiB2和C的协同催化效应。

关键词：储氢 NaAlH4 催化剂球磨

The bond evolution mechanism of covalent sulfurized carbon during electrochemical sodium storage process

在线全文

学校读者我要写书评

暂无评论

Science China Materials 2019年第8期62卷 1127-1138页

作者： Tianjing Wu Chenyang Zhang Guoqiang Zou Jiugang Hu Limin Zhu Xiaoyu cao Hongshuai Hou xiaobo Ji Key Laboratory of Powder Metallurgy College of Chemistry and Chemical Engineering Central South University Changsha 410083 China College of Chemistry Henan University of Technology Zhengzhou 450001 China

The excellent energy storage performance of covalent sulfur-carbon material has gradually attracted great interest. However, in the electrochemical sodium storage process, the bond evolution mechanism remains an elusive topic. Herein, we develop a one-step annealing strategy to achieve a high covalent sulfur-carbon bridged hybrid(HCSC)utilizing phenylphosphinic acid as the carbon-source/catalyst and sodium sulfate as the sulfur-precursor/salt template, in which the sulfur mainly exists in the forms of C–S–C and C–S–S–C. Notably, most of the bridge bonds are electrochemically cleaved when the cycling voltage is lower than0.6 V versus Na/Na+, leading to the appearance of two visible redox peaks in the following cyclic voltammogram(CV) *** in-situ and ex-situ characterizations demonstrate that S^2- is formed in the reduction process and the carbon skeleton is concomitantly and irreversibly isomerized. Thus, the cleaved sulfur and isomerized carbon could jointly contribute to the sodium storage in 0.01–3.0 V. In a Na-S battery system, the activated HCSC in cut off voltage window of 0.6–2.8 V achieves a high reversible capacity(770 mA h g^-1 at 300 mA g^-1). This insight reveals the charge storage mechanism of sulfur-carbon bridged hybrid and provides an improved enlightenment on the interfacial chemistry of electrode materials.

关键词： one-step method sulfur-carbon bridged complex electrochemical mechanism sodium storage

在线全文

学校读者我要写书评

暂无评论

概率资源约束下多品种库存系统的优化

清华大学学报（自然科学版） 2005年第5期45卷 714-716,720页

作者：刘晓亮赵晓波曹露华清华大学工业工程系北京100084

为了有效利用库存资源,同时降低大型仓储配送中心的运行成本,需要对随机需求下的多品种库存问题进行深入研究。在原有单周期线性资源约束下的多品种订货策略的基础上,通过将一种概率形式的库存资源约束应用于多品种(Q,R)策略,实现对仓... 详细信息

为了有效利用库存资源,同时降低大型仓储配送中心的运行成本,需要对随机需求下的多品种库存问题进行深入研究。在原有单周期线性资源约束下的多品种订货策略的基础上,通过将一种概率形式的库存资源约束应用于多品种(Q,R)策略,实现对仓库面积和运营资金更为科学的管理和控制。同时还提出了一种有效的多项式启发式算法,为物流企业在实际库存管理中应用这一模型提供了解决方案。相对于已有的方法,在不增加资源使用量的情况下,该方法可以节约平均库存成本30%以上。

关键词：库存系统多品种优化 (Q,R)策略