资源类型

期刊论文 1192

年份

2024 1

2023 95

2022 121

2021 107

2020 63

2019 68

2018 70

2017 92

2016 94

2015 61

2014 27

2013 18

2012 35

2011 35

2010 49

2009 29

2008 28

2007 22

2006 22

2005 12

展开 ︾

关键词

发展战略 28

可持续发展 26

中国 25

发展 14

对策 11

政策建议 10

食物安全 9

发展趋势 8

2035年 7

战略研究 7

创新 6

技术 6

技术预见 6

水资源 6

2035 5

生态文明 5

中国航天 4

中国铁路“走出去” 4

产业化 4

展开 ︾

检索范围:

排序: 展示方式:

Effects of the US withdrawal from Paris Agreement on the carbon emission space and cost of China andIndia

Hancheng DAI, Yang XIE, Haibin ZHANG, Zhongjue YU, Wentao WANG

《能源前沿(英文)》 2018年 第12卷 第3期   页码 362-375 doi: 10.1007/s11708-018-0574-y

摘要:

Climate mitigation has become a global issue and most countries have promised their greenhouse gas reduction target. However, after Trump took office as president of the United States (US), the US withdrew from the Paris Agreement. As the biggest economy, this would have impacts on the emission space of other countries. This paper, by using the integrated model of energy, environment and economy/computable general equilibrium (IMED/CGE) model, assesses the impacts of the US withdrawal from Paris Agreement on China, India in terms of carbon emission space and mitigation cost under Nationally Determined Contributions (NDCs) and 2°C scenarios due to changed emission pathway of the US. The results show that, under the condition of constant global cumulative carbon emissions and fixed burden sharing scheme among the countries, the failure of the US to honor its NDC commitment will increase its carbon emission space and decrease its mitigation cost. However, the carbon emission space of other regions, including China and India, will be reduced and their mitigation costs will be raised. In 2030, under the 2°C target, the carbon price will increase by US$14.3 to US$45.3/t in China and by US$10.7 to US$33.9/t in India. In addition, China and India will incur additional GDP loss. Under the 2°C target, the GDP loss of China would increase by US$23.3 to US$72.6 billion (equivalent to US$17.4 to US$54.2/capita), and that of India would rise by US$14.2 to US$43.1 billion (equivalent to US$9.3 to US$28.2/capita).

关键词: Paris Agreement     China and India     the US withdrawal     carbon emission space     mitigation cost    

发展中国家制造业出口质量升级研究——基于中国、印度和巴西数据

刘伟丽,郑启明,张涵

《中国工程科学》 2015年 第17卷 第7期   页码 133-132

摘要:

本文根据Hallak提出的产品质量影响双边贸易方向的质量模型,构建基于单位价值、国家之间距离和人均收入等变量的出口产品质量实证模型,测度了2003—2013年中国、印度和巴西三个发展中国家出口到美国的HS6位码的产品质量,并对中国、印度和巴西制造业的产品质量和质量升级进行比较研究,据此提出中国出口产品质量升级的政策建议。

关键词: 制造业;产品质量;质量升级    

Characterization and seasonal distribution of microplastics in the nearshore sediments of the south-east coast of India

K. Dhineka , M. Sambandam , S. K. Sivadas , T. Kaviarasan , Umakanta Pradhan , Mehmuna Begum , Pravakar Mishra , M. V. Ramana Murthy

《环境科学与工程前沿(英文)》 2022年 第16卷 第1期   页码 10-10 doi: 10.1007/s11783-021-1444-0

摘要:

In view of increasing Microplastics (MPs) contamination in the marine environment and dearth of baseline data, a study was conducted on the abundance, characterization, and seasonal distribution of MPs in the nearshore sediments of the south-east coast of India. Sediment samples (n = 130) were collected at a distance of 1 km and 10 km from the shore region at varying depths (8–45 m) along the Chennai to Puducherry coast (165 km stretch), representing two seasons, i.e., south-west (July 2019 and July 2020) and north-east (January 2020) monsoons. The average abundance of MPs at the 22 offshore sites along the Chennai to Puducherry coast varied from 9±4.3 to 19±12.9 particles/50 g dry weight, in July 2019 and January 2020, respectively. July 2020 had an average abundance of 10±4.5 particles/50 g dry weight. Spatially, high levels of MPs were found at 1km stations and transects in proximity to the river inlets, and temporally, the north-east month recorded the maximum concentration. The dominant morphotype was the filament, and the major polymers were polyethylene and polypropylene. Scanning Electron Microscope (SEM) images revealed the surface irregularity and degradation of MPs due to weathering. The study highlights that high sediment contamination by MPs occurs during heavy rainfall and accumulates closer to river inlets. Eventually, this study suggests that appropriate management of plastic wastes on the landside will reduce MP contamination in the marine environment.

Effectiveness of state incentives for promoting wind energy: A panel data examination

Deepak SANGROYA,Jogendra NAYAK

《能源前沿(英文)》 2015年 第9卷 第3期   页码 247-258 doi: 10.1007/s11708-015-0364-8

摘要: Over the last decade, India has started to concentrate earnestly on renewable energy. The Indian government, as well as different state governments, are adopting policy instruments such as feed in tariff, captive consumption, renewable purchase obligation and generation based incentive etc. aimed at renewable energy development. This paper evaluates the effectiveness of state level incentives for the development of wind energy in India. Fixed effect panel data modelling technique of econometric analysis is used to analyse the data of 26 Indian states in 11 years. The results show that feed in tariff and captive consumption are the significant predictors of wind energy development. However, renewable purchase obligation does not affect wind energy significantly.

关键词: India     wind energy development     state incentives     econometric analysis     panel data    

通过Twitter的地理位置标记和文本来了解印度金奈基础设施恢复能力的初步研究 Article

Wai K. Chong, Hariharan Naganathan, Huan Liu, Samuel Ariaratnam, Joonhoon Kim

《工程(英文)》 2018年 第4卷 第2期   页码 218-223 doi: 10.1016/j.eng.2018.03.010

摘要:

地理位置标记是一种使用地理标识元数据来标记数据和信息的过程,文本挖掘是指通过数据分析从文本中获取信息的过程。地理位置标记和文本挖掘这两种方法常被用于分析丰富的社交媒体数据,如视频、网站、文本和二维(QR)代码。它们经常被用来模拟消费者行为和预测市场趋势。本研究使用这两种技术分析在2015 年印度金奈洪灾中获得的数据,从而了解了当地的基础设施的恢复能力。本文对社交媒体(主要是Twitter)的潜在用途进行了概念化研究,这能够帮助我们更好地了解基础设施的恢复能力。研究小组使用特征提取技术从在发洪水期间由印度金奈人发出的推文中提取出Twitter 数据。首先,本项研究指出,这些技术有助于从地理位置标记,包含位置的单词以及每个位置的推文频率来判别基础设施的位置、缺陷和故障程度。然而,要更好地利用推文文本,以及更深入地理解文中使用的词语文化背景、用于描述该事件的词语背景和使用频率最低的词语,还需做出更多努力。

关键词: 社交媒体     洪流     工程设计    

Collaborations of China with the world in Synbio

《化学科学与工程前沿(英文)》 2017年 第11卷 第1期   页码 1-2 doi: 10.1007/s11705-017-1638-y

GRASSLAND AGRICULTURE IN CHINA—A REVIEW

《农业科学与工程前沿(英文)》 2021年 第8卷 第1期   页码 35-44

摘要:

• Grassland-based livestock production systems cover large areas in China.

• China is facing degradation of rangeland and has great shortage of forage.

• Five types of mixed crop-livestock systems in China described.

• Improving crop–livestock integration requires S&T and policy supports.

 

Interactions between crops and livestock have been at the core of the evolution of many agricultural systems. In this paper, we review the development and characteristics of mixed crop-livestock systems, with a focus on grassland-based systems, as these cover large areas in China, and face several challenges. Following the transition from the original hunting and foraging systems to a sedentary lifestyle with integrated crop-livestock production systems some 8000 years ago, a range of different mixed systems have developed, depending on rainfall, solar radiation and temperature, culture and markets. We describe 5 main types of integrated systems, (1) livestock and rangeland, (2) livestock and grain production, (3) livestock and crop – grassland rotations, (4) livestock, crops and forest (silvo-pasture), and (5) livestock, crops and fish ponds. Next, two of these mixed systems are described in greater detail, i.e., the mountain-oasis-desert system and its modifications in arid and semi-arid regions, and the integrated crop-livestock production systems on the Loess Plateau. In general, crop-livestock interactions in integrated systems have significant positive effects on crop production, livestock production, energy use efficiency and economic profitability. We conclude that improved integration of crop-livestock production systems is one of the most important ways for achieving a more sustainable development of animal agriculture in China.

Status of hyperhomocysteinemia in China: results from the China Stroke High-risk Population Screening

《医学前沿(英文)》 2021年 第15卷 第6期   页码 903-912 doi: 10.1007/s11684-021-0871-4

摘要: A nationwide survey was conducted from October 2018 to September 2019 to assess the prevalence of hyperhomocysteinemia (Hhcy) and its influencing factors in China. A standardized questionnaire was used to collect information. Hhcy was defined as the level of serum homocysteine (HCY) 15.0 µmol/L. The H-type hypertension (HHYP) was defined as hypertension with an elevated serum HCY (15.0 µmol/L). Finally, 110 551 residents 40 years of age from 31 provinces in the mainland of China were included. Overall, the median serum HCY level was 10.9 µmol/L (interquartile range 7.9–15.1). A total of 28 633 participants (25.9%) were defined as Hhcy. The Hhcy prevalence ranged from 7.9% in Shanghai to 56.8% in Tianjin. The data showed that serum HCY levels were associated with age, male gender, cigarette smoking, hypertension, diabetes, ethnicity, endurance in exercise (inverse), and fruit and vegetable intake (inverse). In addition, 15 486 participants were defined as HHYP, and the rate was 14.0%. HHYP was an independent predictor of stroke with an adjusted odds ratio of 1.752 (95% CI 1.338–2.105). The geographical distribution pattern of the Hhcy epidemic reflects dynamic differences, and national strategies should be carried out to further improve the care of patients with Hhcy across China.

关键词: homocysteine     hyperhomocysteinemia     H-type hypertension     Chinese    

EGG PRODUCTION IN CHINA: CURRENT STATUS AND OUTLOOK

Ning YANG

《农业科学与工程前沿(英文)》 2021年 第8卷 第1期   页码 25-34 doi: 10.15302/J-FASE-2020363

摘要: Eggs are one of the most nutritious and affordable animal products worldwide. From 1985, egg production in China has retained the leading place in the world. A total of 33 Mt of eggs were produced in 2019 representing ˃ 40% of the world total production. Egg production in China is characterized by diversity in several aspects, including layer breeds, products and production systems. New breeds and synthetic lines are developed to improve the genetic potentials of egg production and feed efficiency of layers. In the past, layer farms were run mostly by small households with 100 to 1000 layers per farm. Over the past decades, egg production in China has developed toward standardization and expansion of production systems, and many of these modern intensive farms raise millions of layers. Although the Chinese egg products maintain strong competitiveness over other animal products and imported egg products, the egg industry will grow at a slower pace compared to the past. Chinese consumers are more concerned about the quality and safety of eggs and egg products, as well as the environmental issues related to animal production, which presents challenges for the Chinese egg industry.

关键词: poultry farms     China     diversity     egg production     trends    

Achievements of the national malaria control and elimination program in the People’s Republic of China

《医学前沿(英文)》 2023年 第17卷 第1期   页码 85-92 doi: 10.1007/s11684-021-0917-7

摘要: In 2017, China achieved the target of zero indigenous malaria case for the first time, and has been certified as malaria free by World Health Organization in 2021. To further summarize the historical achievements and technical experiences of the elimination program, a project on the Roadmap Analysis and Verification for Malaria Elimination in China was carried out. Results of the project were compiled and published as the Atlas of Malaria Transmission in China (The Atlas). The Atlas using modern digital information technologies, has been supported by various data from 24 malaria endemic provinces of China since 1950, to assess the changes in malaria epidemic patterns from 1950 to 2019 at national and provincial levels. The Atlas is designed as two volumes, including a total of 1850 thematic maps and more than 130 charts, consisting of introductory maps, thematic maps of malaria epidemic and control at national and provincial levels. It objectively and directly shows the epidemic history, evolution process, and great achievements of the national malaria control and elimination program in China. The Atlas has important reference value for summing up historical experience in the national malaria elimination program of China, and malaria control and elimination in other endemic countries in the world.

关键词: malaria     transmission     control     elimination     China     atlas    

Obesity in China: its characteristics, diagnostic criteria, and implications

null

《医学前沿(英文)》 2015年 第9卷 第2期   页码 129-133 doi: 10.1007/s11684-015-0387-x

Laboratory diagnosis for malaria in the elimination phase in China: efforts and challenges

《医学前沿(英文)》 2022年 第16卷 第1期   页码 10-16 doi: 10.1007/s11684-021-0889-7

摘要: Malaria remains a global health challenge, although an increasing number of countries will enter pre-elimination and elimination stages. The prompt and precise diagnosis of symptomatic and asymptomatic carriers of Plasmodium parasites is the key aspect of malaria elimination. Since the launch of the China Malaria Elimination Action Plan in 2010, China has formulated clear goals for malaria diagnosis and has established a network of malaria diagnostic laboratories within medical and health institutions at all levels. Various external quality assessments were implemented, and a national malaria diagnosis reference laboratory network was established to strengthen the quality assurance in malaria diagnosis. Notably, no indigenous malaria cases have been reported since 2017, but the risk of re-establishment of malaria transmission cannot be ignored. This review summarizes the lessons about malaria diagnosis in the elimination phase, primarily including the establishments of laboratory networks and quality control in China, to better improve malaria diagnosis and maintain a malaria-free status. A reference is also provided for countries experiencing malaria elimination.

关键词: malaria     laboratory diagnosis     quality control     malaria elimination     China    

Deepwater Hydrocarbon Exploration in China Seas: Yesterday, Today and Tomorrow

Zhi-gang Zhao,Hai-zhang Yang,Wu Tang,Shi-xiang Liu

《工程管理前沿(英文)》 2016年 第3卷 第4期   页码 390-395 doi: 10.15302/J-FEM-2016059

摘要: Deepwater area has been one of the hottest areas in the global hydrocarbon exploration. However, deepwater hydrocarbon exploration in China started late and mainly concentrated in the South China Sea (SCS) with low level of researches. Although there are some achievements, there are even more challenges. For this reason, this paper reviewed the history of deepwater exploration in China Seas and summarized the current exploration situation. The future directions of deepwater hydrocarbon exploration mainly consist of five aspects: establishing key technology system of complex structure and reservoir seismic acquisition and processing in deepwater areas of SCS, clarifying the development mechanism of high quality source rock and establishing matching assessment technology, studying the formation conditions of favorable reservoir and creating reservoir identification technology, improving accumulation theory of large and medium-sized oil and gas field of deepwater, deepening the researches of petroleum geology conditions of middle and south part of SCS. Simultaneously, the concept of portfolio should be utilized in the exploration process, with economic benefits considered. These understandings will help guiding the future deepwater hydrocarbon exploration in China Seas.

关键词: deepwater hydrocarbon exploration     China Seas     South China Sea     Pearl River Mouth Basin     Qiongdongnan Basin     development directions    

Current progress on internal medicine in China—2006 Part I

YAO Dingkang, ZHU Liang, ZHAO Xue, MEI Changlin

《医学前沿(英文)》 2007年 第1卷 第3期   页码 235-247 doi: 10.1007/s11684-007-0046-y

摘要: The growing interest has been placed in the current state of Chinaºs internal medicine from all over the world. Many data of internal medicine in China were collected by searching through some of the most prominent medical magazines published in China in 2006. Because there are many researches on the field of internal medicine, just some representative reports focusing on this topic were selected in this paper. In part I of this study, a summary of the advances made in cardiology, respiration diseases, and gastroenterology was presented.

关键词: internal medicine     Chinaºs internal     respiration     gastroenterology     cardiology    

GROUNDWATER DEPLETION IN THE NORTH CHINA PLAIN: THE AGROHYDROLOGICAL PERSPECTIVE

《农业科学与工程前沿(英文)》 2021年 第8卷 第4期   页码 594-598 doi: 10.15302/J-FASE -2021407

摘要:

Agricultural production in the North China Plain with rainfall of less than 500 mm·yr−1 has been steadily increasing over the past 40 years, with the groundwater levels decreasing at a rate of over 1 m·yr−1. In this paper, it is demonstrated theoretically that the water level in the aquifer can be expressed as a function of agricultural production and the sum of water added as rainfall and imported from outside the basin. Therefore, the most effective measures to halt groundwater depletion are importing water, decreasing cropping intensity and growing less thirsty crops. Irrigation improvements, mulching and agronomic measures that could increase the yield per unit area have less of an impact on solving the declining groundwater levels.

 

关键词: crop yield / groundwater depletion / sustainability    

标题 作者 时间 类型 操作

Effects of the US withdrawal from Paris Agreement on the carbon emission space and cost of China andIndia

Hancheng DAI, Yang XIE, Haibin ZHANG, Zhongjue YU, Wentao WANG

期刊论文

发展中国家制造业出口质量升级研究——基于中国、印度和巴西数据

刘伟丽,郑启明,张涵

期刊论文

Characterization and seasonal distribution of microplastics in the nearshore sediments of the south-east coast of India

K. Dhineka , M. Sambandam , S. K. Sivadas , T. Kaviarasan , Umakanta Pradhan , Mehmuna Begum , Pravakar Mishra , M. V. Ramana Murthy

期刊论文

Effectiveness of state incentives for promoting wind energy: A panel data examination

Deepak SANGROYA,Jogendra NAYAK

期刊论文

通过Twitter的地理位置标记和文本来了解印度金奈基础设施恢复能力的初步研究

Wai K. Chong, Hariharan Naganathan, Huan Liu, Samuel Ariaratnam, Joonhoon Kim

期刊论文

Collaborations of China with the world in Synbio

期刊论文

GRASSLAND AGRICULTURE IN CHINA—A REVIEW

期刊论文

Status of hyperhomocysteinemia in China: results from the China Stroke High-risk Population Screening

期刊论文

EGG PRODUCTION IN CHINA: CURRENT STATUS AND OUTLOOK

Ning YANG

期刊论文

Achievements of the national malaria control and elimination program in the People’s Republic of China

期刊论文

Obesity in China: its characteristics, diagnostic criteria, and implications

null

期刊论文

Laboratory diagnosis for malaria in the elimination phase in China: efforts and challenges

期刊论文

Deepwater Hydrocarbon Exploration in China Seas: Yesterday, Today and Tomorrow

Zhi-gang Zhao,Hai-zhang Yang,Wu Tang,Shi-xiang Liu

期刊论文

Current progress on internal medicine in China—2006 Part I

YAO Dingkang, ZHU Liang, ZHAO Xue, MEI Changlin

期刊论文

GROUNDWATER DEPLETION IN THE NORTH CHINA PLAIN: THE AGROHYDROLOGICAL PERSPECTIVE

期刊论文