Results 31 to 40 of about 13,940 (209)

“一带一路”沿线国家跨境电力贸易格局与建设时序研究 [PDF]

open access: yes全球能源互联网, 2021
随着“一带一路”区域范围内国家对于电力需求的不断增长,带路沿线国家间的跨境电力贸易成为一个趋势,跨境电力贸易将为经济的可持续发展和消费需求的培育开辟新的空间。为解决“一带一路”背景下如何开展跨境电力贸易的问题,首先梳理了“一带一路”跨境电力贸易环境中的关键问题,设计出开展“一带一路”跨境电力贸易的研究框架;其次,分析了“一带一路”沿线国家电力供需情况及跨境贸易合作模式,总结了跨境电力贸易的总成本构成,并阐述了如何找出跨境电力贸易价格影响因素的流程;最后,描述了如何构建经济效应评估模型确定“一带一路 ...
王蓓蓓, 陈中瑶, 顾欣, 刘贞瑶
doaj   +1 more source

History of Bank of China: archives, artifacts and method of interpretation [PDF]

open access: yes, 2013
本文尝试以中国银行为个案,从不同角度,包括中国银行的历史档案、行史博物馆所展出的文物、已刊行的行史资料和行史等,探讨中国银行行史概念的形成和对行史的诠释方法。本文依据的是笔者于近年所搜集得来的超过四十种与中国银行行史相关的出版物,包括行史、行史资料汇编、行志、周年特刊、纪念图册、研究专著、银行家的个人传记、日记、回忆录、文集等。本文尝试指出,在不同时期推出的中国银行行史,不仅缺乏统一的标准,且于撰写和研究方法各方面,都未能与国际学术水平接轨 ...
Lee, PT
core   +1 more source

Effect of feedforward control combined with tracking method on reducing the incidence of blockage of intravenous indwelling needle in perioperative patients (前馈控制追踪法在降低围手术期患者静脉留置针堵管率中的效果)

open access: yes中西医结合护理, 2023
Objective To investigate the effect of feedforward control combined with tracking method on reducing the incidence of blockage of intravenous indwelling needle in perioperative patients.
ZHANG Jianfang (张建芳)   +5 more
doaj   +1 more source

New varieties of tomatoes with high resistance to disease and high yield - breeding of a Su Kang No. 7-9 (pink colour fruit) [PDF]

open access: yes, 1995
提要苏杭七号八号、九号番茄品种是江苏省农科院蔬茉所培育的粉果类型优良一代杂 种, 经所内多年品比试验、江苏省三年区域试验、生产示范及两年全国区试、生产试验, 均表现突出。该品种高杭烟草花叶病毒(TMV)、丰产、品质好、早、中、晚熟配套, 适 应性广, 适宜露地丰产栽培及保护地种植, 已在省内及全国广泛种植, 与当地主栽品种相比, 增产15~50%
Long, M, Lu, C, Xu, H, Yang, R, Yu, W
core  

Dynamic Regulation of Supramolecular Chirality in an Amphiphilic Dimeric Macrocycle Through Azobenzene‐Based Photoisomerization

open access: yesAdvanced Science, EarlyView.
A stimuli‐responsive supramolecular system has been rationally designed enabling hierarchical control over supramolecular handedness. This hybrid architecture retains orthogonal host‐guest properties and displays unique amphiphilicity‐directed chiral self‐assembly.
Minzan Zuo   +8 more
wiley   +1 more source

Non‐Uniform Space‐Time‐Coding Modulation for Low‐Complexity Diagnostics of Reconfigurable Intelligent Surfaces

open access: yesAdvanced Electronic Materials, EarlyView.
A diagnostic method for reconfigurable intelligent surfaces (RIS) based on non‐uniform space‐time‐coding modulation is presented. Fault localization is achieved via amplitude‐only spectral measurements, eliminating the need for complex signal processing. A one‐to‐one mapping between harmonic components and RIS elements enables accurate detection.
Xiao Qing Chen   +8 more
wiley   +1 more source

Thinking of China tax service system based on the demand side [PDF]

open access: yes, 2015
随着经济全球化迅速推进,以信息技术为代表的新技术的广泛应用,税收管理科学化、精细化战略的推进和深入,纳税服务在税收总体工作中的地位和作用愈益明确和提高。近年来,各国政府在努力提高工作效率的过程中,对各自的公共管理领域进行了大刀阔斧的改革,其核心是实行合理可靠的管理办法。对于各国税务部门来说,进一步提高纳税服务水平,提高税收遵从度,需要重视纳税人的需求,通过纳税服务需求管理策略去改进服务。 在各国构建和管理自身税法体系的过程中,纳税人服务占有举足轻重的地位。向所有纳税人提供“用户界面友好的”服务 ...
沈雪
core  

Study on Anti-Idiotype Antibodies Used for Monitoring Hazards in Edible Agricultural Products(抗独特型抗体在食用农产品危害物监控中的应用研究) [PDF]

open access: yesShipin kexue jishu xuebao, 2019
The hazards which affect the quality and safety in edible agricultural products are widely sourced and varied. The hazard risks of biological and chemical pollutants almost accompany the entire supply chains in edible agricultural products, from ...
XU Chongxin(徐重新)   +10 more
doaj   +1 more source

Sampling Strategy: An Overlooked Factor Affecting Artificial Intelligence Prediction Accuracy of Peptides’ Physicochemical Properties

open access: yesAdvanced Intelligent Discovery, EarlyView.
This study reveals that sampling strategy (i.e., sampling size and approach) is a foundational prerequisite for building accurate and generalizable AI models in peptide discovery. Reaching a threshold of 7.5% of the total tetrapeptide sequence space was essential to ensure reliable predictions.
Meiru Yan   +3 more
wiley   +1 more source

A new type of cucumber variety – early ripening by breeding female cucumber hybrids [PDF]

open access: yes, 1995
摘要利用雌性系Wl 5207G 为母本, 长春密刺选系(9一1一3一4一l) 为父本配制的黄瓜一代杂种早抗, 具有极早熟、耐低温、弱光能力强、抗病性好、品质优等特点。 长江流域春季大棚栽培每666.7m2 产量达4000kg, 比宁丰3 号增产19.1%, 冬一季日光温室栽培可达5000kg 以上。目前已推广到国内10 多个省市, 推广面积约13 3.3 hm2。关键词黄瓜; 早抗 ...
Lu, C, Xu, H, Yang, R, Yu, W
core  

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