Objective The production of coal fines is very common in the development of coalbed methane(CBM)in the eastern margin of the Ordos Basin,China.A large amount of produced coal fines seriously affect the productivity ...Objective The production of coal fines is very common in the development of coalbed methane(CBM)in the eastern margin of the Ordos Basin,China.A large amount of produced coal fines seriously affect the productivity of CBM wells(Wei Yingchun et al.,2013).Therefore,the production problems of CBM wells caused by coal fines have attracted extensive attention.展开更多
Since CAS is charged with the key task of carrying out strategic, fundamental and forward-looking studies for this country, it is incumbent upon CAS scientists to take an active part in the National Program for the De...Since CAS is charged with the key task of carrying out strategic, fundamental and forward-looking studies for this country, it is incumbent upon CAS scientists to take an active part in the National Program for the Development of Western China. This is also an important part of the national Knowledge Innovation Program (KIP) spearheaded by CAS. Over the past two years, CAS has made a series of remarkable advances in Western China with regard to the development of research bases, exploration of crucial scientific problems, the training of talented people, and providing consultation services for decision makers.With the furtherance of the national drive to develop the country's western region, CAS will step up its efforts and increase its funding, to make more and greater contributions to the overall development of the region.展开更多
It was announced recently that important progress had been made on the development of the LM-7 launch vehicle. Assembly welding of the booster oxidizer tank for propulsion system test-firing, the first structural prod...It was announced recently that important progress had been made on the development of the LM-7 launch vehicle. Assembly welding of the booster oxidizer tank for propulsion system test-firing, the first structural product of LM-7, has been performed at Capital Aerospace Machinery Corporation, CALT. The 2.25m diameter oxidizer tank is only 0.17cm in thinness in the thinnest area and is nearly 13m in length increased from the current 4.5m, which is the展开更多
Designing special well patterns, tridimensional reservoir development selects a variety of wells and uses the gravity energy to maximize the hydrocarbon recovery. It's a new development model to implement the oil ...Designing special well patterns, tridimensional reservoir development selects a variety of wells and uses the gravity energy to maximize the hydrocarbon recovery. It's a new development model to implement the oil and gas exploitation economically and efficiently. It is suitable for both huge oiliness altitude reservoirs and large dip-angle sandstone reservoirs, and more for the carbonate reservoirs developed in high-angle fractures, volcanic reservoirs and metamorphic reservoirs.展开更多
I. Preface
Biomass includes the residues of agriculture, forest and stock breeding, as well as straw, algae and energy crops. In its broad meaning, biomass is a kind of organic matter produced by the photosynthesis of...I. Preface
Biomass includes the residues of agriculture, forest and stock breeding, as well as straw, algae and energy crops. In its broad meaning, biomass is a kind of organic matter produced by the photosynthesis of plants, which is not only renewable, but also contains plentiful energy.展开更多
This article reviews the history and progress of hybrid rice development. Hybrid rice research was initiated back in 1964, and commercialized in 1976. Three-line and two-line system hybrid rice were developed in 1974 ...This article reviews the history and progress of hybrid rice development. Hybrid rice research was initiated back in 1964, and commercialized in 1976. Three-line and two-line system hybrid rice were developed in 1974 and 1995, respectively. Research on super hybrid rice, which was first launched by Ministry of Agriculture, China in 1996, is discussed, and the great progress of super hybrid rice had been achieved with a new yield record by 15.4 t ha^-1 in the 6.84 ha demonstration location in Xupu, Hunan Province, China in 2014. And the mechanism of heterosis, the techniques of hybrid seed production and the modern field managements in hybrid rice over the past decades are also discussed. Additionally, this article dealt with the intellectual property protection(IPR) and development of hybrid rice seed industry in China. Major factors that constrain hybrid rice development are analyzed and possible solutions to this problems are proposed. Finally, the authors present methods to further increase production yield, and propose an improvement for breeding super high-yielding hybrid rice based on these methods.展开更多
目的探究基于个案管理模式的渐进性康复护理应用于全面性发育迟缓患儿中的临床效果。方法回顾性分析2022年2—12月厦门市妇幼保健院100例全面性发育迟缓患儿临床资料,按编号单双数将其分为对照组(50例)和研究组(50例)。对照组给予常规...目的探究基于个案管理模式的渐进性康复护理应用于全面性发育迟缓患儿中的临床效果。方法回顾性分析2022年2—12月厦门市妇幼保健院100例全面性发育迟缓患儿临床资料,按编号单双数将其分为对照组(50例)和研究组(50例)。对照组给予常规康复护理,研究组实施个案管理模式的渐进性康复护理。对比两组发育商指标、活动能力指标以及儿童生活质量普适性核心评定量表(universal core rating scale for children’s quality of life,PedsQL^(TM)4.0)评分情况。结果干预后,研究组的发育商指标言语功能、精细运动及粗大运动的评分高于对照组(P<0.05);研究组的日常活动能力及口脸活动能力指标评分高于对照组(P<0.05);研究组PedsQL^(TM)4.0评分高于对照组(P<0.05)。结论基于个案管理模式的渐进性康复护理应用于全面性发育迟缓患儿中能有效改善发育商,提升活动能力,提高生活质量。展开更多
基金financially supported by the National Natural Science Foundation of China(grants No.41402134 and 41272181)
文摘Objective The production of coal fines is very common in the development of coalbed methane(CBM)in the eastern margin of the Ordos Basin,China.A large amount of produced coal fines seriously affect the productivity of CBM wells(Wei Yingchun et al.,2013).Therefore,the production problems of CBM wells caused by coal fines have attracted extensive attention.
文摘Since CAS is charged with the key task of carrying out strategic, fundamental and forward-looking studies for this country, it is incumbent upon CAS scientists to take an active part in the National Program for the Development of Western China. This is also an important part of the national Knowledge Innovation Program (KIP) spearheaded by CAS. Over the past two years, CAS has made a series of remarkable advances in Western China with regard to the development of research bases, exploration of crucial scientific problems, the training of talented people, and providing consultation services for decision makers.With the furtherance of the national drive to develop the country's western region, CAS will step up its efforts and increase its funding, to make more and greater contributions to the overall development of the region.
文摘It was announced recently that important progress had been made on the development of the LM-7 launch vehicle. Assembly welding of the booster oxidizer tank for propulsion system test-firing, the first structural product of LM-7, has been performed at Capital Aerospace Machinery Corporation, CALT. The 2.25m diameter oxidizer tank is only 0.17cm in thinness in the thinnest area and is nearly 13m in length increased from the current 4.5m, which is the
文摘Designing special well patterns, tridimensional reservoir development selects a variety of wells and uses the gravity energy to maximize the hydrocarbon recovery. It's a new development model to implement the oil and gas exploitation economically and efficiently. It is suitable for both huge oiliness altitude reservoirs and large dip-angle sandstone reservoirs, and more for the carbonate reservoirs developed in high-angle fractures, volcanic reservoirs and metamorphic reservoirs.
文摘I. Preface
Biomass includes the residues of agriculture, forest and stock breeding, as well as straw, algae and energy crops. In its broad meaning, biomass is a kind of organic matter produced by the photosynthesis of plants, which is not only renewable, but also contains plentiful energy.
基金supported by the National Natural Science Foundation of China(31271659)the Key Technologies R&D Program of China during the 12th Five-Year Plan period(2012BAD04B10 2011BAD16B01, 2013BAD07B14)
文摘This article reviews the history and progress of hybrid rice development. Hybrid rice research was initiated back in 1964, and commercialized in 1976. Three-line and two-line system hybrid rice were developed in 1974 and 1995, respectively. Research on super hybrid rice, which was first launched by Ministry of Agriculture, China in 1996, is discussed, and the great progress of super hybrid rice had been achieved with a new yield record by 15.4 t ha^-1 in the 6.84 ha demonstration location in Xupu, Hunan Province, China in 2014. And the mechanism of heterosis, the techniques of hybrid seed production and the modern field managements in hybrid rice over the past decades are also discussed. Additionally, this article dealt with the intellectual property protection(IPR) and development of hybrid rice seed industry in China. Major factors that constrain hybrid rice development are analyzed and possible solutions to this problems are proposed. Finally, the authors present methods to further increase production yield, and propose an improvement for breeding super high-yielding hybrid rice based on these methods.
文摘目的探究基于个案管理模式的渐进性康复护理应用于全面性发育迟缓患儿中的临床效果。方法回顾性分析2022年2—12月厦门市妇幼保健院100例全面性发育迟缓患儿临床资料,按编号单双数将其分为对照组(50例)和研究组(50例)。对照组给予常规康复护理,研究组实施个案管理模式的渐进性康复护理。对比两组发育商指标、活动能力指标以及儿童生活质量普适性核心评定量表(universal core rating scale for children’s quality of life,PedsQL^(TM)4.0)评分情况。结果干预后,研究组的发育商指标言语功能、精细运动及粗大运动的评分高于对照组(P<0.05);研究组的日常活动能力及口脸活动能力指标评分高于对照组(P<0.05);研究组PedsQL^(TM)4.0评分高于对照组(P<0.05)。结论基于个案管理模式的渐进性康复护理应用于全面性发育迟缓患儿中能有效改善发育商,提升活动能力,提高生活质量。
基金Supported by "Twelfth Five-Year"National Science and Technology Support Program(2012BAD04B13)"Twelfth Five-Year"National Science and Technology Support Program(2011BAD16B05)+3 种基金Special Fund for National Public Service Sectors(Agriculture)from the Ministry of Agriculture of China(200903050-4)Special Fund for National Public Service Sectors(Agriculture)of China(201303129)Major Special Project from the Ministry of Agriculture of ChinaScience and Technology SupportProgram of Sichuan Province(2010NZ0093)~~