检索结果-南通市图书馆

Identification of annual routines and critical stopover sites of a breeding shorebird in the Yellow Sea,China

在线全文

学校读者我要写书评

暂无评论

Avian Research 2022年第4期13卷 407-414页

作者： Yang Wu Weipan Lei Bingrun Zhu jiaqi xue Yuanxiang Miao Zhengwang Zhang Key Laboratory for Biodiversity Science and Ecological Engineering College of Life SciencesBeijing Normal UniversityBeijing100875China Demonstration Center for Experimental Life Sciences&Biotechnology Education College of Life SciencesBeijing Normal UniversityBeijing100875China Conservation Ecology Group Groningen Institute for Evolutionary Life Sciences(GELIFES)University of GroningenPO Box 111039700CCGroningenthe Netherlands School of Life Science and Technology Shanghai Tech UniversityShanghai201210China

Pied Avocets(Recurvirostra avosetta)are common migratory shorebirds in the East Asian–Australasian *** 2019 to 2021,GPS/GSM transmitters were used to track 40 Pied Avocets nesting in northern Bohai Bay to identify annual routines and key stopover *** average,southward migration of Pied Avocets started on 23 October and arrived at wintering sites(mainly in the middle and lower reaches of the Yangtze River and coastal wetlands)in southern China on 22 November;northward migration started on 22 March with arrival at breeding sites on 7 *** avocets used the same breeding sites and wintering sites between years,with an average migration distance of 1124 *** was no significant difference between sexes on the migration timing or distance in both northward and southward migration,except for the departure time from the wintering sites and winter *** coastal wetland of Lianyungang in Jiangsu Province is a critical stopover *** individuals rely on Lianyungang during both northward and southward migration,indicating that species with short migration distances also heavily rely on a few stopover ***,Lianyungang lacks adequate protection and is facing many threats,including tidal flat *** strongly recommend that the coastal wetland of Lianyungang be designated as a protected area to effectively conserve the critical stopover site.

关键词： Bohai bay EAAF Lianyungang Migration Recurvirostra avosetta

短期国际资本异常流动控制分析——基于中国的实证

在线全文

学校读者我要写书评

暂无评论

系统工程理论与实践 2016年第5期36卷 1118-1127页

作者：薛耀文张艳 jiaqi xue 张云香山西师范大学经济与管理学院临汾041004 山西师范大学数学与计算机科学学院临汾041004 Department of Electrical Engineering Stanford Universityca94305

本文从合理渠道与非法隐形渠道角度提出了计算中国短期资本流动量的方法;借鉴水库模型,将资本流动划分为五种测度区间,并提出了相应测度区间控制短期资本流量与流速的思路;在研究了短期资本流入对经济影响有时间滞后性的基础上,本文建... 详细信息

本文从合理渠道与非法隐形渠道角度提出了计算中国短期资本流动量的方法;借鉴水库模型,将资本流动划分为五种测度区间,并提出了相应测度区间控制短期资本流量与流速的思路;在研究了短期资本流入对经济影响有时间滞后性的基础上,本文建立了经济周期不同节点与短期资本流入的匹配关系以及控制短期资本流动的组合思想与方式.最后,在分析与统计中国数据的基础上,预测了目标年度中国短期资本流动水平与异常情况,提出了控制中国短期资本异常流动的建议.

关键词：洗钱资本流动水库模型控制

1D-2D nanohybrid-based textile strain sensor to boost multiscale deformative motion sensing performance

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第9期15卷 8398-8409页

作者： Xiaoting Li Keng Huat Koh jiaqi xue Chun Ho So Na Xiao Chung Tin King Wai Chiu Lai Department of Biomedical Engineering City University of Hong KongKowloon TongHong KongChina

The development of strain sensors with both superior sensitivity(gauge factor(GF)>100)and broad strain-sensing range(>50%strain)is still a grand ***,which demonstrate significant structural deformation under microscale motion,are required to offer high *** connection of materials upon large-scale motion is demanded to widen strainsensing ***,it is hard to achieve both features ***,we design a crepe roll structure-inspired textile yarn-based strain sensor with one-dimensional(1D)-two-dimensional(2D)nanohybrid strain-sensing sheath,which possesses superior *** ultrastretchable strain sensor exhibits a wide and stable strain-sensing range from microscale to large-scale(0.01%–125%),and superior sensitivity(GF of 139.6 and 198.8 at 0.01%and 125%,respectively)*** strain sensor is structurally constructed by a superelastic 1D-structured core elastomer polyurethane yarn(PUY),a novel high conductive crepe roll-structured(CRS)1D-2D nanohybrid multilayer sheath which assembled by 1D nanomaterials silver nanowires(AgNWs)working as bridges to connect adjacent layers and 2D nanomaterials graphene nanoplates(GNPs)offering brittle lamellar structure,and a thin polydopamine(PDA)wrapping layer providing protection in exterior *** the stretching/deformation process,microcracks originate and propagate in the GNPs lamellar structure enable resistance to change significantly,while AgNWs bridge adjacent GNPs to accommodate applied stress partially and boost *** 1D crepe roll structure-inspired strain sensor demonstrates multifunctionality in multiscale deformative motion detection,such as respiratory motions of Sprague–Dawleyw rat,flexible digital display,and proprioception of multi-joint finger bending and antagonistic flexion/extension motions of its flexible continuum body.

关键词： crepe roll-inspired multifunctional yarn strain sensor one-dimensional silver nanowires/two-dimensional graphene nanoplates(1D AgNWs/2D GNPs)nanohybrid multi-scale motion detection e-textiles tactile sensing proprioception of the endoscopic robot

A Literature Review of Wave-Induced Heave Motion of Floating Structures

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

Journal of Architectural Research and Development 2018年第1期2卷 32-51页

作者： jiaqi xue School of Mechanical and Chemical Engineering University of Western Australia

This paper provides comprehensive review on heave motion of rigid floating structure due to wave *** specify and explain the structure response,this review firstly provides a brief introduction on ocean sea wave theory,floating structure motion *** the floating body motion in regular waves was demonstrated using a superposition method of the oscillated motion in still water and the restrained motion in ***,added mass and damping coefficient,these two frequency-dependent terms are brought into discussion to generate the motion response with given wave amplitude,which is known for response amplitude operator(RAO).Based on the study in regular waves,RAO of floating structure in irregular waves is introduced while no longer in time domain but in frequency *** whole review covers the literatures from the early 1980s up to nowadays,based on the review,it is recommended that more experimental work regarding to frequency characteristic and relative response of larger floating body should be carried out to improve the accuracy of this method.

关键词： Floating body heave motion analysis JONSWAP spectrum Response Amplitude Operator(RAO) literature review

Clinical Observation on the Improved Short-Term Effects of Anti-Tumor Purified Chinese Medicine Injection Ai-Jing for 138 Cases with Malignant Tumors

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

Chinese Medicine 2021年第4期12卷 197-202页

作者： Chun Liu Siyi Yin jiaqi xue Ling xue xue’s Traditional Chinese Medicine Science and Technology R&D Center Chuangchun China National Center for Medical Service Administration of NHC Beijing China

The subjects of this study were to observe the improved short-term effects of anti-tumor purified Chinese medicine injection Ai-Jing for 138 cases with malignant tumors. This was a multi-center clinical study, and a total of 138 patients included 96 males and 42 females, with the age from 60 to 76 years. Ai-Jing has obtained the Chinese invention patent since 2008 (ZL991-03528.3). A novel technique acupoint injection method was adopted. Except for lung cancer, patients with other malignant tumors were injected once every other day, 2 ml each time. A course of treatment needs 6 Ai-Jing injections, lung cancer patients need 10 - 20 Ai-Jing injections. At the same time, patients were treated with traditional medicine decoction. Due to the limited number of cases, cure rate, recovery rate and remission rate were calculated as a whole, respectively 18.12%, 44.20% and 32.15%. All the invalid patients were lung cancer, accounting for 16.67% of the patients treated with lung cancer, and the total treatment inefficiency was 6.52%. Conclusion: Chinese Medicine Injection Ai-Jing extracts the effective components of anti-cancer and tumorigenesis, and has the effects of anti-cancer and tumorigenesis, anti-inflam-ma

关键词： Anti-Tumor Purified Chinese Medicine Injection Ai-Jing Short-Term Effects Malignant Tumors

New Maikhanellid Shells and Siphogonuchitid Spicule Bundles from the Cambrian Fortunian Stage of South China

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

Acta Geologica Sinica(English Edition) 2016年第5期90卷 1629-1636页

作者： LIU Yunhuan ZHANG Yanan SHAO Tiequan TANG Hanhua JIANG Kaituo WANG Qi CHEN Cheng DONG Junyan LIANG Yongchun DAI Jun xue jiaqi School of Earth Sceince andResouces Chang'an University Xi'an 710054 China Key Laboratory for the study of FocusedMagmatism and Giant Ore Deposits MLR Xi 'an 710054 China

Maikhanellids are a distinct group of Cambrian Fortunian small shelly fossils by the capshaped profiles and scaly shell *** to the individual shell shape and ornamentation feature types of 50 maikhanellids fossils which were collected from Xixiang botia,we confirmed the family Maikhanellidae content of six genera,which are Maikhanella,Ramenta,Purella,Ramentoides,Yunnannopleura and *** the halkieriid animals whose shells and spicules are articulated on different body parts,maikhanellids were presumably yielded by siphogonuchitid spicules penetrating the intermediate matrix（the ＂spicule shell＂ hypothesis）,and this is the reason that some researchers treated maikhanellids and co-occurring siphogonuchitids as *** affinities of Maikhanellids and siphogonuchitids remain ***,we report three dimensionally phosphatized maikhanellid shells and siphogonuchitid spicule bundles from the Cambrian Fortunian small shell faunas of South *** differ from all the previously reported maikhanellids and siphogonuchitids,and may represent new *** intact and smooth surface underneath the partially preserved scales of the shells challenges the ＂spicule-shell＂ *** present siphogonuchitid spicules differ from the maikhanellid scales in size,morphology,*** pattern,thus the spicules might not be derived from the *** the shells and spicule bundles were articulated on different body parts of the same animals remains unknown.

关键词： maikhanellids siphogonuchitids Cambrian Fortunian Stage South China

组织文化与关系策略对供应链知识共享的影响研究

在线全文

学校读者我要写书评

暂无评论

科学学与科学技术管理 2008年第10期29卷 118-123页

作者：薛佳奇刘益西安交通大学管理学院西安710049

文化作为企业特有的资源禀赋,其差异性会影响供应商采取不同的关系策略来构筑知识共享的平台,以促进供应链的知识共享。提出一个概念模型,探讨了三种不同类型的组织文化(市场导向、人本导向和竞争导向)如何通过影响关系策略(包括适应、... 详细信息

文化作为企业特有的资源禀赋,其差异性会影响供应商采取不同的关系策略来构筑知识共享的平台,以促进供应链的知识共享。提出一个概念模型,探讨了三种不同类型的组织文化(市场导向、人本导向和竞争导向)如何通过影响关系策略(包括适应、知识共享和顾客导向)的实施,促进供应链的知识共享。

关键词：组织文化关系策略知识共享供应链

克服社会资本对营销渠道的消极作用:控制机制和吸收能力的调节作用

在线全文

学校读者我要写书评

暂无评论

管理评论 2021年第6期33卷 167-180页

作者：薛佳奇张竹对外经济贸易大学国际商学院北京100029

以往的供应链和营销渠道管理文献通常认为交易关系中的社会资本能够促进合作,提高双方绩效。本研究进一步揭示了交易关系中的社会资本不仅有积极作用,也有消极作用。本文通过对212家制造商渠道关系的调查研究,得出结论:社会资本的两个维... 详细信息

以往的供应链和营销渠道管理文献通常认为交易关系中的社会资本能够促进合作,提高双方绩效。本研究进一步揭示了交易关系中的社会资本不仅有积极作用,也有消极作用。本文通过对212家制造商渠道关系的调查研究,得出结论:社会资本的两个维度(关系资本和结构资本)都与渠道关系绩效呈倒U型关系;制造商采用契约和专项投资这两种控制机制能够有效抑制关系资本对渠道关系绩效的消极影响,而制造商的吸收能力可以缓解结构资本对渠道关系绩效的消极影响。上述结论为制造商有效利用渠道关系中的社会资本,趋利避害,提供了有益的理论指导。

关键词：社会资本渠道关系绩效控制机制吸收能力

《国民经济学批判大纲》对马克思主义政治经济学的贡献研究——纪念恩格斯诞辰200周年

在线全文

学校读者我要写书评

暂无评论

河北经贸大学学报 2020年第5期41卷 10-17页

作者：薛加奇吴昊吉林大学马克思主义学院吉林长春130012 吉林大学东北亚研究院吉林长春130012

马克思主义政治经济学是在批判古典政治经济学的基础上发展起来的。作为马克思主义政治经济学先驱者之一,恩格斯对古典政治经济学的批判为后来马克思主义政治经济学的形成作出了重要贡献。恩格斯在《国民经济学批判大纲》中对古典政治... 详细信息

马克思主义政治经济学是在批判古典政治经济学的基础上发展起来的。作为马克思主义政治经济学先驱者之一,恩格斯对古典政治经济学的批判为后来马克思主义政治经济学的形成作出了重要贡献。恩格斯在《国民经济学批判大纲》中对古典政治经济学家所坚守和赞扬的资本主义私有制进行了批判和否定。他考察了资本主义社会的各种经济现象,对资本主义社会的存在经济问题展开研究,并以此为切入点分析了资本主义社会存在的各种矛盾,最终揭示导致资本主义各种矛盾产生的根本原因是由于资本主义私有制。

关键词：国民经济学批判资本主义私有制马克思主义政治经济学