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of low-carbon energy technology innovation in China’s industrial sectors from 1998 to 2017: from a regional

Xi ZHANG, Yong GENG, Yen Wah TONG, Harn Wei KUA, Huijuan DONG, Hengyu PAN

《能源前沿(英文)》 2021年 第15卷 第2期   页码 473-486 doi: 10.1007/s11708-021-0738-z

摘要: Low-carbon energy technology (LC) innovation contributes to both environmental protection and economic development. Using the panel data of 30 provinces/autonomous regions/municipalities in China from 1998 to 2017, this paper constructs a two-layer logarithmic mean Divisia index (LMDI) model to uncover the factors influencing the variation of the innovation of LC in China’s industrial sectors, including the alternative energy production technology (AEPT) and the energy conversation technology (ECT). The results show that China’s industrial LC patent applications rapidly increased after 2005 and AEPT patent applications outweighed ECT patent applications all the time with a gradually narrowing gap. Low-carbon degree played the dominant role in promoting the increase in China’s industrial LC patent applications, followed by the economic scale, R&D (research and development) efficiency, and R&D share. Economic structure contributed to the increases in LC patent applications in the central and the western regions, while led to the decreases in the eastern region, the north-eastern region, and Chinese mainland . Low-carbon degree and economic scale were two main contributors to the growths of both industrial AEPT patent applications and ECT patent applications in Chinese mainland and the four regions. Several policy recommendations are made to further promote industrial innovation in China.

关键词: low-carbon energy technology (LC)     logarithmic mean Divisia index (LMDI)     industrial sector     regional disparity     China    

Gene expression disparity in giant cell tumor of bone

Xiaohua PAN, Shuhua YANG, Deming XIAO, Yong DAI, Lili REN

《医学前沿(英文)》 2009年 第3卷 第1期   页码 49-56 doi: 10.1007/s11684-009-0012-y

摘要: The aim of this paper was to study the differential gene expression of giant cell tumor of bone (GCTB) by gene chip technology. Total RNA of 8 fresh GCTB specimens (Jaffe I∶6 cases, II∶1 case, III∶1 case; Campanacci I∶6 cases, II∶1 case, III∶1 case; Enneking Staging G T M : 5 cases, G T M : 2 cases, G T M : 1 case) and 4 normal bony callus specimens (the control group) were extracted and purified to get mRNA and then reverse transcribed to complementary DNA, respectively. Microarray screening with a set of 8064 human cDNA genes was conducted to analyze the difference among the samples and the control. The hybridization signals were scanned. The gene expression disparity between the GCTB samples and normal bony callus was significantly different ( <0.01), and the disparity of over 5-fold was found in 47 genes in the GCTB specimens, with 25 genes up-regulated and 22 down-regulated including the extracellular matrix and transforming-related genes, oncogene and its homolog genes, cytokine and its receptor genes. Specific gene spectrum associated with GCTB can be identified by cDNA microarray, which will be the foundation of progressive etiology elucidation, diagnosis and treatment of GCTB.

关键词: giant cell tumor of bone     gene     microarray     cDNA    

民用支线飞机发展浅析

陈一坚

《中国工程科学》 2001年 第3卷 第2期   页码 16-20

摘要:

高科技、高投入、高风险、长周期的航空产品是一个国家工业水平和经济发达程度的重要标志之一。由于种种历史原因,我国民用航空产业发展相对缓慢。在西部大开发方针指引下,充分发挥陕西航空工业的优势,集中全行业资源和人才,发挥"哑铃型"研制模式,两头集中在陕西,并组成符合市场经济规律的股份公司,有利于民用支线飞机尽早提供给用户,成为21世纪初中国航空人应肩负的历史使命。文章浅析了如何发展支线飞机,以引起各方重视。

关键词: 民用支线飞机     涡扇型支线飞机     人公里数     支线运输网    

Evaluation of ecosystem health for regional development in the southwestern Beijing, China

LIU Xuehua, ZHANG Shuang, XU Haoyang, SHAO Xiaoming

《环境科学与工程前沿(英文)》 2008年 第2卷 第3期   页码 311-317 doi: 10.1007/s11783-008-0047-3

摘要: Ecosystem health assessment is one of the most important issues in regional ecological quality and safety studies. It also has a great significance to ecological conservation and regional development. This study focused on assessing the health status of forest, agriculture and urban ecosystems in the southwestern Beijing, China, including the Fangshan and Fengtai Districts. Based on field surveys and data collection, an assessment index system containing the vigor, organization and resilience factors was developed to measure the ecosystem health. Each index was scored from 1 to 5, representing five levels that contribute to the whole ecosystem health. The analytic hierarchy process (AHP) method was used to measure the weights of each index and three factors, and thus an overall score for a certain ecosystem was calculated. The results show that the forest ecosystem in the Fangshan District had higher health value than the Fengtai District, while the urban ecosystem had a slightly lower value in the Fangshan District than the Fengtai District. Both districts show lower resilience values in forest and urban ecosystems. Maintaining the ecosystem health will definitely benefit the long-term development of two districts. This study suggested that an approach for assessing the regional ecosystem health could be further developed to address spatial and synergy relationships between ecosystems and the three health factors.

关键词: hierarchy process     regional ecosystem     synergy     agriculture     resilience    

Understand the local and regional contributions on air pollution from the view of human health impacts

《环境科学与工程前沿(英文)》 2021年 第15卷 第5期 doi: 10.1007/s11783-020-1382-2

摘要:

• PM2.5-related deaths were estimated to be 227 thousand in BTH & surrounding regions.

关键词: PM2.5     Regional transport     Local emissions     Health impact     Environmental inequality    

Cutting CO emissions through demand side regulation: Implications from multi-regional input–output linear

《工程管理前沿(英文)》   页码 452-461 doi: 10.1007/s42524-022-0209-1

摘要: This study combines multi-regional input–output (MRIO) model with linear programming (LP) model to explore economic structure adjustment strategies for the reduction of carbon dioxide (CO2) emissions. A particular feature of this study is the identification of the optimal regulation sequence of final products in various regions to reduce CO2 emissions with the minimum loss in gross domestic product (GDP). By using China’s MRIO tables 2017 with 28 regions and 42 economic sectors, results show that reduction in final demand leads to simultaneous reductions in GDP and CO2 emissions. Nevertheless, certain demand side regulation strategy can be adopted to lower CO2 emissions at the smallest loss of economic growth. Several key final products, such as metallurgy, nonmetal, metal, and chemical products, should first be regulated to reduce CO2 emissions at the minimum loss in GDP. Most of these key products concentrate in the coastal developed regions in China. The proposed MRIOLP model considers the inter-relationship among various sectors and regions, and can aid policy makers in designing effective policy for industrial structure adjustment at the regional level to achieve the national environmental and economic targets.

关键词: CO2 emissions     demand side regulation     multi-regional input–output model     linear programming model    

Estimation of regional physical imports and exports of EW-MFA in China using monetary input-output tables

Nan LI, Tianzhu ZHANG

《环境科学与工程前沿(英文)》 2013年 第7卷 第2期   页码 242-254 doi: 10.1007/s11783-012-0443-6

摘要: Given the statistical gaps in material flow among provinces in China, a method was introduced to estimate regional physical imports and exports (RPIE), which includes international and interregional imports/exports. This method uses provincial monetary input-output tables (MIOT) and international trade statistics. A coefficient matrix representing correlations between monetary value and physical mass for years 2000–2009 was obtained based on a detailed commodity classification and 22 material production sectors in MIOT. With the coefficient matrix as reference, RPIE was measured. Pilot calculation of both regional physical trade balance and domestic material consumption, as well as a brief analysis of these methods, were conducted using 2002 data.

关键词: economy-wide material flow accounts (EW-MFA)     monetary input-output table (MIOT)     regional physical imports and exports estimation    

Cerebral regional and network characteristics in asthma patients: a resting-state fMRI study

Siyi Li, Peilin Lv, Min He, Wenjing Zhang, Jieke Liu, Yao Gong, Ting Wang, Qiyong Gong, Yulin Ji, Su Lui

《医学前沿(英文)》 2020年 第14卷 第6期   页码 792-801 doi: 10.1007/s11684-020-0745-1

摘要: Asthma is a serious health problem that involves not only the respiratory system but also the central nervous system. Previous studies identified either regional or network alterations in patients with asthma, but inconsistent results were obtained. A key question remains unclear: are the regional and neural network deficits related or are they two independent characteristics in asthma? Answering this question is the aim of this study. By collecting resting-state functional magnetic resonance imaging from 39 patients with asthma and 40 matched health controls, brain functional measures including regional activity (amplitude of low-frequency fluctuations) and neural network function (degree centrality (DC) and functional connectivity) were calculated to systematically characterize the functional alterations. Patients exhibited regional abnormities in the left angular gyrus, right precuneus, and inferior temporal gyrus within the default mode network. Network abnormalities involved both the sensorimotor network and visual network with key regions including the superior frontal gyrus and occipital lobes. Altered DC in the lingual gyrus was correlated with the degree of airway obstruction. This study elucidated different patterns of regional and network changes, thereby suggesting that the two parameters reflect different brain characteristics of asthma. These findings provide evidence for further understanding the potential cerebral alterations in the pathophysiology of asthma.

关键词: asthma     brain     regional activation     functional connectivity     resting-state fMRI    

因地制宜推进区域能源革命的战略思考和建议

谢克昌

《中国工程科学》 2021年 第23卷 第1期   页码 1-6 doi: 10.15302/J-SSCAE-2021.01.001

摘要:

能源与经济社会、生态环境协调发展始终是我国面对的重大议题之一。虽然各地区在能源与经济社会、生态环境的协调发展上取得了一些成绩,但区域发展差异显著,区域内存在不同类型的矛盾和问题。因此,必须因地制宜推进能源革命。本文根据中国工程院重大咨询项目“推进能源生产和消费革命战略研究(三期)”主要成果,阐述了以区域能源革命为抓手协调推进能源革命与区域发展的重大意义,提出了因地制宜推进能源革命的战略思路,重点针对京津冀、长江三角洲、珠江三角洲、老工业基地(东北及山西)、中部地区、能源富集地区(新疆及能源“金三角”地区)、西南地区等区域提出了加强能源革命顶层设计,明确我国能源中长期发展战略目标和重点任务;明确区域能源革命的功能定位,形成统筹协调推进区域能源革命的良好格局;加强区域能源革命试点,通过改革办法加快探索形成推动能源革命的高效机制;明确区域能源革命实施责任和考核监督机制,确保区域能源革命取得预期效果等战略举措及对策建议。

关键词: 区域能源革命     区域发展差异     协调发展     新发展理念    

认识北斗 建设北斗

许其凤

《中国工程科学》 2014年 第16卷 第8期   页码 26-32

摘要:

指出卫星导航系统的发展规划应与国防战略和装备能力相适应,一个包括我国周边及西太平洋的区域系统可以满足近期的军用、民用需求。分析了我国建设卫星导航系统的不利条件,并设计了规避不利条件的卫星星座。介绍了我国发展全球系统所必需的卫星对卫星观测和数据传输的技术支撑。分析了区域增强的全球系统的竞争优势。

关键词: 卫星导航系统     卫星星座设计     区域系统     区域增强    

Local and regional contributions to PM in the Beijing 2022 Winter Olympics infrastructure areas during

《环境科学与工程前沿(英文)》 2021年 第15卷 第6期 doi: 10.1007/s11783-021-1434-2

摘要:

• Regional transportation contributed more than local emissions during haze episodes.

关键词: 2022 Winter Olympics     PM2.5     Source apportionment    

Regional wind power forecasting model with NWP grid data optimized

Zhao WANG, Weisheng WANG, Bo WANG

《能源前沿(英文)》 2017年 第11卷 第2期   页码 175-183 doi: 10.1007/s11708-017-0471-9

摘要: Unlike the traditional fossil energy, wind, as the clean renewable energy, can reduce the emission of the greenhouse gas. To take full advantage of the environmental benefits of wind energy, wind power forecasting has to be studied to overcome the troubles brought by the variable nature of wind. Power forecasting for regional wind farm groups is the problem that many power system operators care about. The high-dimensional feature sets with redundant information are frequently encountered when dealing with this problem. In this paper, two kinds of feature set construction methods are proposed which can achieve the proper feature set either by selecting the subsets or by transforming the original variables with specific combinations. The former method selects the subset according to the criterion of minimal-redundancy-maximal-relevance (mRMR), while the latter does so based on the method of principal component analysis (PCA). A locally weighted learning method is also proposed to utilize the processed feature set to produce the power forecast results. The proposed model is simple and easy to use with parameters optimized automatically. Finally, a case study of 28 wind farms in East China is provided to verify the effectiveness of the proposed method.

关键词: regional wind power forecasting     feature set     minimal-redundancy-maximal-relevance (mRMR)     principal component analysis (PCA)     locally weighted learning model    

中国区域地质调查现代化与加强深部调查

赵文津

《中国工程科学》 2003年 第5卷 第6期   页码 25-32

摘要:

从对区域地质调查的任务出发,总结了过去区域地质调查工作的特点,即基本上是沿用传统方式进行的。提出和论述了21世纪中国区域地质调查应有新发展,以适应战略转变的要求,即除去运输、通讯、记录及数字化成图等之外,更应当面向土地资源、矿产资源、地质灾害以及提高环境质量的需要,用现代地学理论指导进行多学科的调查和采集、整理资料,实现3维多参数填图和理论概括,是关系现代地质科学发展的、具有深远战略意义的事。几十年的调查工作已证明深部的地质构造情况与地表层的观察结果是不一样的,与依据地表地质构造情况推测的深层情况也很不同。今后应加强深部探测,发展深部探测技术,取得不同深度层次的高分辨率成像图案,使人们对地球的认识提高到一个新的高度,形成新的空间—时间观念,以更有效地解决我国及地球的资源环境问题。

关键词: 区域地质调查     深部探测     资源     环境    

TRADE-OFFS IN THE DESIGN OF SUSTAINABLE CROPPING SYSTEMS AT A REGIONAL LEVEL: A CASE STUDY ON THE NORTH

《农业科学与工程前沿(英文)》 2022年 第9卷 第2期   页码 295-308 doi: 10.15302/J-FASE-2021434

摘要:

Since the Green Revolution cropping systems have been progressively homogenized and intensified with increasing rates of inputs such as fertilizers, pesticides and water. This has resulted in higher crop productivity but also a high environmental burden due to increased pollution and water depletion. To identify opportunities for increasing the productivity and reducing the environmental impact of cropping systems, it is crucial to assess the associated trade-offs. The paper presents a model-based analysis of how 30 different crop rotations practiced in the North China Plain could be combined at the regional level to overcome trade-offs between indicators of economic, food security, and environmental performance. The model uses evolutionary multi-objective optimization to maximize revenues, livestock products, dietary and vitamin C yield, and to minimize the decline of the groundwater table. The modeling revealed substantial trade-offs between objectives of maximizing productivity and profitability versus minimizing ground water decline, and between production of livestock products and vitamin C yield. Six strategies each defining a specific combination of cropping systems and contributing to different extents to the various objectives were identified. Implementation of these six strategies could be used to find opportunities to mitigate the trade-offs between objectives. It was concluded that a holistic analysis of the potential of a diversity cropping systems at a regional level is needed to find integrative solutions for challenges due to conflicting objectives for food production, economic viability and environmental protection.

关键词: crop rotation / food security / multi-objective optimization / water use    

A practical multi-lane factor model of bridges based on multi-truck presence considering lane load disparities

《结构与土木工程前沿(英文)》 2021年 第15卷 第4期   页码 877-894 doi: 10.1007/s11709-021-0756-2

摘要: Many bridge design specifications consider multi-lane factors (MLFs) a critical component of the traffic load model. Measured multi-lane traffic data generally exhibit significant lane disparities in traffic loads over multiple lanes. However, these disparities are not considered in current specifications. To address this drawback, a multi-coefficient MLF model was developed based on an improved probabilistic statistical approach that considers the presence of multiple trucks. The proposed MLF model and approach were calibrated and demonstrated through an example site. The model sensitivity analysis demonstrated the significant influence of lane disparity of truck traffic volume and truck weight distribution on the MLF. Using the proposed approach, the experimental site study yielded MLFs comparable with those directly calculated using traffic load effects. The exclusion of overloaded trucks caused the proposed approach, existing design specifications, and conventional approach of ignoring lane load disparity to generate comparable MLFs, while the MLFs based on the proposed approach were the most comprehensive. The inclusion of overloaded trucks caused the conventional approach and design specifications to overestimate the MLFs significantly. Finally, the benefits of the research results to bridge practitioners were discussed.

关键词: bridges     multi-lane factor     traffic load     lane load disparity     multi-truck presence     weigh-in-motion data    

标题 作者 时间 类型 操作

of low-carbon energy technology innovation in China’s industrial sectors from 1998 to 2017: from a regional

Xi ZHANG, Yong GENG, Yen Wah TONG, Harn Wei KUA, Huijuan DONG, Hengyu PAN

期刊论文

Gene expression disparity in giant cell tumor of bone

Xiaohua PAN, Shuhua YANG, Deming XIAO, Yong DAI, Lili REN

期刊论文

民用支线飞机发展浅析

陈一坚

期刊论文

Evaluation of ecosystem health for regional development in the southwestern Beijing, China

LIU Xuehua, ZHANG Shuang, XU Haoyang, SHAO Xiaoming

期刊论文

Understand the local and regional contributions on air pollution from the view of human health impacts

期刊论文

Cutting CO emissions through demand side regulation: Implications from multi-regional input–output linear

期刊论文

Estimation of regional physical imports and exports of EW-MFA in China using monetary input-output tables

Nan LI, Tianzhu ZHANG

期刊论文

Cerebral regional and network characteristics in asthma patients: a resting-state fMRI study

Siyi Li, Peilin Lv, Min He, Wenjing Zhang, Jieke Liu, Yao Gong, Ting Wang, Qiyong Gong, Yulin Ji, Su Lui

期刊论文

因地制宜推进区域能源革命的战略思考和建议

谢克昌

期刊论文

认识北斗 建设北斗

许其凤

期刊论文

Local and regional contributions to PM in the Beijing 2022 Winter Olympics infrastructure areas during

期刊论文

Regional wind power forecasting model with NWP grid data optimized

Zhao WANG, Weisheng WANG, Bo WANG

期刊论文

中国区域地质调查现代化与加强深部调查

赵文津

期刊论文

TRADE-OFFS IN THE DESIGN OF SUSTAINABLE CROPPING SYSTEMS AT A REGIONAL LEVEL: A CASE STUDY ON THE NORTH

期刊论文

A practical multi-lane factor model of bridges based on multi-truck presence considering lane load disparities

期刊论文