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家蚕欧系品种资源的引进、保存和利用
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作者 魏兆军 吴冬秀 +1 位作者 林昌其 姚琴 《北方蚕业》 1996年第2期4-6,共3页
关键词 家蚕 欧系品种资源 品种选育 引进 利用
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欧系高速客车转向架一系悬挂装置检修工装设计 被引量:2
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作者 张辉 王日艺 《机车车辆工艺》 2012年第6期26-27,共2页
AM96型和CL242型转向架设计采用的是欧洲设计理念,其设计、制造均采用欧洲标准体系,其中一系悬挂装置轴箱弹簧组成未采用传统工艺螺栓结构。为使该系列转向架在使用过程中检修方便,根据前期的一些运用经验,对该类型转向架一系悬挂装置... AM96型和CL242型转向架设计采用的是欧洲设计理念,其设计、制造均采用欧洲标准体系,其中一系悬挂装置轴箱弹簧组成未采用传统工艺螺栓结构。为使该系列转向架在使用过程中检修方便,根据前期的一些运用经验,对该类型转向架一系悬挂装置的检修工装进行了研究设计,使该类型转向架的检修周期大大缩短,降低了检修成本。 展开更多
关键词 转向架 欧系 一系悬挂装置 工装
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东风欧系轻客AMT控制系统设计 被引量:1
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作者 史洋 彭毅 +2 位作者 刘天虎 王健 潘亚敏 《汽车科技》 2018年第6期20-30,共11页
东风欧系轻客车型,仍一直采用传统机械式变速箱总成,在技术先进性上已开始落后于国际水平并逐渐落后国内水平,为了提升产品竞争力,经过企划调研确认启动开发符合东风欧系车型的AMT控制系统,实现自动换挡功能。
关键词 欧系轻客车型 方案设计 AMT控制系统 控制策略
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元宝山冷杉群落学特点的研究 被引量:7
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作者 欧祖兰 苏宗明 +3 位作者 李先琨 宁世江 向悟生 唐润琴 《广西植物》 CAS CSCD 北大核心 2002年第5期399-407,共9页
元宝山冷杉群落 30 0 0 m2 样方统计到 10 7种 ,隶属 52科 ,81属。种类组成中 ,单种科、少种属占的比例相当大 ,含单种的科有 2 7科 ,占 51.9%。单种的属有 6 3属 ,占 77.8% ;含两种的属为 12属 ,占 14 .8% ,两者共占92 .6 %。乔木层种... 元宝山冷杉群落 30 0 0 m2 样方统计到 10 7种 ,隶属 52科 ,81属。种类组成中 ,单种科、少种属占的比例相当大 ,含单种的科有 2 7科 ,占 51.9%。单种的属有 6 3属 ,占 77.8% ;含两种的属为 12属 ,占 14 .8% ,两者共占92 .6 %。乔木层种类除了南方铁杉外 ,其它优势种类都为稳定型种群。乔木层的优势区系成分相当稳定 ,表明该群落为一种顶极群落。 71个种子植物属只有 11个分布区类型和 8个变型 ,仅占所有变型的 2 6 .7% ,地理成分不复杂 ,其中热带分布 2 7属 ,占 39.7% ,温带分布 38属 ,占 55.9%。热带分布以泛热带和热带亚洲为主 ,温带分布与东亚、东亚和北美洲间断分布密切相关。乔木层 16个优势种中 ,属中亚热带地理分布类型的有 13种 ,占81.3% ,其中重要值排列前 4位的种类均为中亚热带类型 ,所以元宝山冷杉群落为亚热带性质。元宝山冷杉不同群丛元宝山冷杉种群结构的差异反映了群落的演替过程。 10 7种组成种类中 ,常绿成分占 6 2 .6 % ,落叶成分占37.4 % ,其中矮高位芽植物最多 ,占 2 0 .6 % ,叶级以小型叶为主 ,占 57.9% ,叶型以单叶比例最大 ,占 81.6 %。各样地的物种多样性水平均较高 ,表明元宝山冷杉群落是一个处于稳定地位的顶极群落。 展开更多
关键词 元宝山冷杉 群落学特点 欧系成分 外貌 结构 物种多样性
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Analysis of Genetic Relationships in Prunus domestica L. in Xinjiang Using ISSR Markers 被引量:1
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作者 孙琪 廖康 +5 位作者 耿文娟 刘娟 曼苏尔.那斯尔 刘欢 贾杨 曹倩 《Agricultural Science & Technology》 CAS 2015年第3期447-453,503,共8页
[Objective] This paper aimed to explore the genetic relationships among different types of Prunus domestica L. in Xinjiang. [Method] The inter-simple se- quence repeat (ISSR) markers were applied to analyze the gene... [Objective] This paper aimed to explore the genetic relationships among different types of Prunus domestica L. in Xinjiang. [Method] The inter-simple se- quence repeat (ISSR) markers were applied to analyze the genetic diversity and relationships among 30 individual plants from 5 types of P. domestica germpiasm resources in Xinjiang. [Result] A total of 317 bands were amplified by 16 selected IS- SR primers. Among the amplified bands, there were 246 polymorphic bands, accounting for 77.60% of the total. The Nei's gene diversity index (H) of individuals was 0.266 6. The average Shannon's information index (I) of individuals was 0.399 1. And most of the genetic similarity coefficients ranged from 0.555 2 to 0.996 8. It is indicated that the P. domestica germplasm resources have a certain genetic diversity in Xinjiang. The cluster analysis showed that, at the genetic similarity coefficient of 0.719, the 30 individuals were divided into 3 major groups, including a group of introduced European plum varieties, a group of Tacheng Smoked Plum and Tacheng Binzi and a group of Jiashi Smoked Plum and Wild European Plum. While at the genetic similarity coefficient of 0.949, Jiashi Smoked Plum and Wild European Plum were divided into two small groups. [Conclusion] There are very close genetic relationships between Jiashi Smoked Plum and Wild European Plum, and among the introduced European plum varieties, Tacheng Smoked Plum and Tacheng Binzi. 展开更多
关键词 XINJIANG Prunus domestica L. ISSR Genetic relationship
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Field test of new poplar clone in Shangdong Province
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作者 秦光华 姜岳忠 +1 位作者 乔玉玲 B.Nottola 《Journal of Forestry Research》 SCIE CAS CSCD 2003年第3期225-229,共5页
Poplar is one of the dominant tree species for the establishment of fast growing plantations in Shandong Province. Eighteen poplar clones belonging to Populus aigeiros section were introduced from Italy, Turkey and do... Poplar is one of the dominant tree species for the establishment of fast growing plantations in Shandong Province. Eighteen poplar clones belonging to Populus aigeiros section were introduced from Italy, Turkey and domestic regions. Populus deltoides cv. 慙ux?I-69/55 (I-69), which was widely used in Shandong Province, China, was taken as control clone (I-69). Following a randomized complete block design, seedling test and controlled afforestation trials were carried out at Juxian County, Caoxian County and Laiyang City. The results showed that the poplar clone (Populus ?euramericana cv. ?02/74?, namely 102/74, performed well both in terms of adaptability and growth rate. The mean height of 13.9 m (H), diameter at breast height of 18.0 cm (DBH) and volume growth of 0.1445 m3 (V) were 2.2 %, 21.6% and 52.9 % higher than those of I-69 (CK), respectively, at the age of 5 years at three experimental sites. Moreover, the clone can be propagated easily and showed high resistance to poplar disease, pest as well as salinity and had longer growing period. Furthermore, wood basic density and fiber length of new poplar clone (102/74) were as same as I-69 (CK). It was concluded that the selected clone (102/74) was ideal for the estab-lishment of fast-growing poplar plantations, especially for the pulpwood plantations in Shandong Province. 展开更多
关键词 POPLAR CLONES INTRODUCTION SELECTION
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菲亚特“时尚”(Fiat Stilo)激动时尚
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作者 Chancell 《车时代》 2002年第3期27-30,共4页
关键词 菲亚特“时尚”轿车 Stilo轿车 结构设计 欧系悬架结构 内部装饰 空间规划
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Ploidy Analysis of Chinese Old Roses and Their Progenies 被引量:2
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作者 李莲花 小笠原利恵 +3 位作者 马策 庄得凤 浅野阳一 福井博一 《Agricultural Science & Technology》 CAS 2013年第4期620-623,660,共5页
[Objective] This study aimed to analyze the ploidy of Chinese old roses and their progenies. [Method] The ploidy level of 38 roses was examined by the flow cytometry. [Result] The four Chinese old roses that influence... [Objective] This study aimed to analyze the ploidy of Chinese old roses and their progenies. [Method] The ploidy level of 38 roses was examined by the flow cytometry. [Result] The four Chinese old roses that influenced breeding of mod- ern roses were diploid. Since the progenies of these Chinese old roses crossed with the tetraploid European old roses were almost tetraploid, it is probable that the pro- genies were arisen by the unreduced gametes of the Chinese old roses. Other Chi- nese old roses analysed were triploid, it was presumed that triploids and diploids were intermingled in China of the 1700s and the plant hunters preferred the more fertile Chinese old roses to be introduced to Europe. Sixteen hybrids of Chinese old rose originated in China consisted of six diploids, five triploids and five tetraploids. [Conclusion] Although these diploid Chinese roses might be the progeny brought by crossing among only Chinese old roses, it was considered that triploids and tetraploids have been arisen by crossing between European old roses and Chinese old rose. 展开更多
关键词 GENEALOGY European old roses Flow cytometry
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ALE FINITE ELEMENT ANALYSIS OF NONLINEAR SLOSHING PROBLEMS BASED ON F LUID VELOCITY POTENTIAL 被引量:1
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作者 陈建平 周儒荣 万水 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2003年第1期23-29,共7页
Base d on fluid velocity potential, an ALE finite element formulation for the analysi s of nonlinear sloshing problems has been developed. The ALE kinemat ical description is introduced to move the computational mesh... Base d on fluid velocity potential, an ALE finite element formulation for the analysi s of nonlinear sloshing problems has been developed. The ALE kinemat ical description is introduced to move the computational mesh independently of f luid motion, and the container fixed noninertial coordinate system is employed to establish the governing equations so that the mesh is needed to be updated in this coordinate system only. This leads to a very simple mesh moving algorithm which makes it easy to trace the motion of the moving boundaries and the free su rface without producing undesirable distortion of the computational mesh. The fi nite element method and finite difference method are used spacewise and timewise , respectively. A numerical example involving either forced horizontal oscillati on or forced pitching oscillation of the fluid filled container is presented to illustrate the effectiveness and the robustness of the method. In additi on, this work can be extended for the fluid structure interaction problems. 展开更多
关键词 nonlinear sloshing ar bitrary Lagrangian Eulerian (ALE) description finite element method (FEM) n umerical simulation moving boundary
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Palynological characteristics of Kazakhstan Province of Carboniferous Euramerican Region 被引量:1
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作者 Maya V.Oshurkova 《Global Geology》 2012年第1期1-12,共12页
The paper presents results of palynological studies of the coal-bearing Carboniferous in Central Kazakhstan. A quantitative dynamics of major genera of miospores reflects an overall succession of the Carboniferous mio... The paper presents results of palynological studies of the coal-bearing Carboniferous in Central Kazakhstan. A quantitative dynamics of major genera of miospores reflects an overall succession of the Carboniferous miospore assemblages. Visean Serpukhovian assemblages are dominanted by Lophozonotriletes fuscatus, Acanthozonotriletes cristifer, A. inclusus, Punctatisporites glabratus, Crassispora ignorata, C. scrupea, Cyclobaculisporites trichacanthus, Lycospora breviapiculata, L. echinata and Vallatisporites decrescens. Rare Punctatisporites bertschoguriensis , Stenozonotriletes marginellus , Vallatisporites appilicatus , Verrucosisporites serobiculatus , Retieulatisporites caneellatus, Granulatisporites areuatus are recorded, which are not found in assemblages from overlying sediments. Bashkirian-Moseovian assemblages are dominated by Lyeospora subtriquetra, L. pusilla, Vallatisporites ciliaris, Apiculatisporis mollis, Cyelogranisporites testieulatus, Calamospora mierorugosa, Sehopfipollenites principalis, Psilohyrnena psiloptera, Florinites grandis and Granulatisporites piroformis miospores. Cristatisporites latispinus, Angulisporites didymus, Thymospora obseura and Torispora securis are also present, as well as single Apieulatisporis eurvispinus, Raistriekia inordinata, Marsupipollenites retroflexus, Entylissa eaperata, Potonieisporites grandis and Cordaitina sp. A similar succession of miospore assemblages is recorded in the Carboniferous deposits of Europe and North America, which allows carrying out correlations, despite an endemic characters of many species of Paleozoic miospores from the coal-bearing Carboniferous of the Kazakhstan Province in the Euramerian Paleofloristic Region. 展开更多
关键词 MIOSPORES CARBONIFEROUS BIOSTRATIGRAPHY Kazakhstan
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Downscaling and Disaggregating NAO-conflict Nexus in Pre-industrial Europe 被引量:5
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作者 Harry Fung LEE ZHANG David Dian +1 位作者 PEI Qing FEI Jie 《Chinese Geographical Science》 SCIE CSCD 2016年第5期609-622,共14页
Recently, the desiccation effect of the North Atlantic Oscillation(NAO) is found to be positively correlated with violent conflict in pre-industrial Europe, with agricultural shrinkage and its subsequent economic shoc... Recently, the desiccation effect of the North Atlantic Oscillation(NAO) is found to be positively correlated with violent conflict in pre-industrial Europe, with agricultural shrinkage and its subsequent economic shocks to be their causal link. However, it remains unexplored whether the correlation persists if the study period is extended backward in time, a different definition of violent conflict is applied, or the relationship is examined at lower geographic levels. In this study, we based on 835 internal disturbance incidents in Europe during 1049–1800 to conduct long-temporal and multi-scalar examination on the NAO-conflict nexus. ′Time-series′ and ′panel data′ disaggregation approaches, together with Granger Causality, Multiple Regression, and Survival Analyses were applied to verify the nexus quantitatively. Results show that the positive NAO-conflict correlation was significant at the continent and physiographic zone levels. During the positive NAO phases, the annual probability of internal disturbance outbreak increased by 70.0% in the southern Europe and the Mediterranean, a zone most affected by the NAO-induced desiccation effect. Yet, the NAO-conflict correlation was rather inconsistent when it was downscaled to the sub-regional level. Moreover, the NAO-conflict correlation was inflated under the time-series approach, while the panel data approach demonstrated the region-specific nature of the NAO forcing more clearly. The associated implications in examining climate-conflict nexus are discussed. Our findings may be crucial in examining violent conflict in the northwestern Africa, a highly agricultural region affected by the NAO. 展开更多
关键词 climate change North Atlantic Oscillation (NAO) violent conflict internal disturbance EUROPE
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The progress and prospect on China-EU Blue Partnership 被引量:1
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作者 YU Ting YIN Yue LIU Jiayi 《Marine Science Bulletin》 CAS 2020年第1期54-64,共11页
By reviewing the current status and progress made by China and EU in ocean related fields in the changing world,this paper tries to identify the needs,characteristics and strategic importance of the China-EU Blue Part... By reviewing the current status and progress made by China and EU in ocean related fields in the changing world,this paper tries to identify the needs,characteristics and strategic importance of the China-EU Blue Partnership.The Blue Partnership proposed by the Chinese government is open and inclusive.It values mutual beneficial,and calls for broader cooperation.China-EU Blue Partnership is not only related to the development of both China and EU,but also will significantly contribute to the implementation of the UN 2030 Agenda for Sustainable Development.Some suggestions on the further development of the Partnership are proposed to facilitate the implementation. 展开更多
关键词 China-EU Blue Partnership sustainable development Belt and Road Initiative marine cooperation
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The Choice of Gender Roles and the Perceptions of Gender Violence in Regions of Armenia
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作者 Anahit Manasyan 《Cultural and Religious Studies》 2016年第9期564-575,共12页
This article describes results of the fieldwork study concerning the reasons of gender roles' choice and the possible violence in Armenian families that occur from the gender roles. I have completed field study encom... This article describes results of the fieldwork study concerning the reasons of gender roles' choice and the possible violence in Armenian families that occur from the gender roles. I have completed field study encompassing nine, out of 11, administrative regions of Armenia. The purpose of this study is to understand the perception level of domestic violence, child abuse and society's approach to the latter by conducting quantitative survey. These findings may be useful for the experts specialized in the gender violence and working on adapting the value system of EU countries in Armenia. 展开更多
关键词 PERCEPTIONS gender roles VIOLENCE unconscious rape value system
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Socio-Economic Brand "Carpathians" in the Context of Tourism Industry Development in Countries of Central and East Europe
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作者 Fedir Shandor 《Chinese Business Review》 2015年第4期186-191,共6页
Brand in terms of strategy is a way of relationships between the organization and its target groups, aimed at removing a priori existing conflict. Therefore, formation of a new socio-economic brand "Carpathians", wh... Brand in terms of strategy is a way of relationships between the organization and its target groups, aimed at removing a priori existing conflict. Therefore, formation of a new socio-economic brand "Carpathians", which joins a mountain system in the eastern part of Central Europe, Ukraine, Hungary, Poland, Slovakia, Romania, Serbia, and Austria, will help create a new image of Carpathians and implementation of programs aimed at the increase of investment activities, building confidence to domestic producers and creating programs to attract tourists to the most profitable tourist areas, in particular. 展开更多
关键词 brands traditional products famous brand successful export
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Design Issues for Linking Emissions Trading Schemes--A Qualitative Analysis for Schemes from Europe, Asia and North America
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作者 Sebastian R. Goers Barbara Pflaglmayer Martin J. Luger 《Journal of Environmental Science and Engineering(B)》 2012年第12期1322-1334,共13页
The paper focuses on links between the EU ETS (European Union Emissions Trading Scheme) and selected (domestic) greenhouse gas ETS (emissions trading schemes) from Asia and North America which could open up a pe... The paper focuses on links between the EU ETS (European Union Emissions Trading Scheme) and selected (domestic) greenhouse gas ETS (emissions trading schemes) from Asia and North America which could open up a perspective to keep the idea of emissions trading alive on a global scale and confront the actual uncertainty in future climate policy. The approach consists of investigating qualitatively the essential requirements of this alternative bottom-up approach. It is evaluated if variations or inconsistencies in the structure and design of domestic ETS as well as legal and institutional characteristics harm or facilitate the concept of linking with the EU ETS. The evaluation of systems leads to the exclusion of systems with voluntary character, relative caps, unrestricted borrowing and price caps from the group of potential linking candidates. 展开更多
关键词 European Emissions Trading Scheme international and domestic emissions trading LINKING post-Kyoto.
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Implementation of the Contract
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作者 Jun Yuan Lingzhi Zhao 《International English Education Research》 2014年第3期19-20,共2页
This is a fimdamental relationship "contract" in Hilbert geometric axiom system. But the axiom system does not define how contracts are implemented, requires only basic objects and relations contracts to meet the ba... This is a fimdamental relationship "contract" in Hilbert geometric axiom system. But the axiom system does not define how contracts are implemented, requires only basic objects and relations contracts to meet the basic axioms I - V . But in Euclidean geometry is intuitive to put a "contract" understood as a "movement." Now we are in the framework of Hilbert geometric axiom system, to "contract" and we have been accustomed to "movement" link, for simplicity, we have limited the discussion to the Euclidean plane geometry. 展开更多
关键词 Euclidean Geometry Euclidean Plane Orthogonal Transformation
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Policies and Initiatives for Carbon Neutrality in Nordic Heating and Transport Systems
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作者 Qiuwei Wu Jakob Glarbo Moiler Jacob Ostergaard Arne Hejde Nielsen 《Journal of Energy and Power Engineering》 2013年第9期1745-1753,共9页
Policies and initiatives promoting carbon neutrality in the Nordic heating and transport systems are presented. The focus within heating systems is the promotion of HPs (heat pumps) while the focus within transport ... Policies and initiatives promoting carbon neutrality in the Nordic heating and transport systems are presented. The focus within heating systems is the promotion of HPs (heat pumps) while the focus within transport systems is initiatives regarding EVs (electric vehicles). It is found that the conversion to HPs in the Nordic region relies on both private economic and national economic incentives. Initiatives toward carbon neutrality in the transport system are mostly concentrated on research, development and demonstration for deployment of a large number of EVs. All Nordic countries have plans for the future heating and transport systems with the ambition of realizing carbon neutrality. 展开更多
关键词 Policies and initiatives carbon neutrality heat pumps electric vehicles.
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Active explosion barrier performance against methane and coal dust explosions 被引量:8
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作者 J. J. L. du Plessis 《International Journal of Coal Science & Technology》 EI 2015年第4期261-268,共8页
Preventing the propagation of methane or coal dust explosions through the use of active explosion-suppression systems remains one of the most underutilised explosion controls in underground coal mines. As part of the ... Preventing the propagation of methane or coal dust explosions through the use of active explosion-suppression systems remains one of the most underutilised explosion controls in underground coal mines. As part of the effort to develop better technologies to safeguard mines, the use of active barrier systems was investigated at Kloppersbos in South Africa. The system is designed to meet the requirements of the European Standard (EN 14591-4 2007) as well as the Mine Safety Standardisation in the Ministry of Coal Industry, Coal Industrial 1 Standard of the Peoples Republic of China (MT 694-1997). From the tests conducted, it can be concluded that the ExploSpot System was successful in stopping flame propagation for both methane and methane and coal dust hybrid explosions when ammonium phosphate powder was used as the suppression material. The use of this barrier will provide coal mine management with an additional explosion control close to the point of ignition and may find application within longwall faces further protecting mines against the risk of an explosion propagating throughout a mine. 展开更多
关键词 COAL METHANE Explosions Active barriers
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Disruptive Innovation in the Nordic Countries' Healthcare Systems
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作者 Henning Sejer Jakobsen Ivar Moltke Jacob Brix 《Chinese Business Review》 2014年第3期179-191,共13页
The Nordic healtheare model is recognized to be one of the most innovative in the world. Here billions of USD are annually invested in developing new treatments, drugs, robots etc. to diagnose and cure diseases. Never... The Nordic healtheare model is recognized to be one of the most innovative in the world. Here billions of USD are annually invested in developing new treatments, drugs, robots etc. to diagnose and cure diseases. Nevertheless, this study establishes that there is a fundamental shortcoming in the system that supports healthcare innovation: It is strongly biased towards micro-level innovation projects focusing on new products, alternative processes, and new financial solutions. The problem with this approach to support new projects is that the results are created as inventions within the system thus lacking holistic perspectives. This has consequently contributed with increasing costs that are out of proportion with existing budgets. Therefore this study seeks to analyze the current understanding of the Nordic healthcare system from a business model perspective. Here other aspects of the healthcare system are explored to determine if they could be redesigned to promote new types of innovation projects. The purpose of undertaking this task is to challenge the established patterns of the current healthcare innovation support practices. Here the vertical innovation process (VIP) framework, which is a systematic radical innovation model that seeks macro-level outcomes based on standalone inventions (see more below), is applied to analyze the current state-of-the-art in Nordic healthcare innovation projects. The results determine that very little attention is given to rethink and redesign the healthcare system at a macro-level, and it is discussed that stand-alone inventions ought to be rethought into the entire healthcare system to create a larger impact. Finally, it is argued that existing performance measures are inappropriate to foster projects that innovate the existing system: New measuring points should be developed to promote macro-level projects and to avoid the current rapid increase of costs in the Nordic healthcare system. 展开更多
关键词 disruptive innovation radical innovation healthcare innovation business model innovation
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New Process of Cold Fusion
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作者 C.P.L. Karl von Thule Elena Dvoryashina 《Journal of Energy and Power Engineering》 2017年第10期643-645,共3页
The author's Process of Cold Fusion firstly was announced at the International Conference on Emerging Nuclear Energy Systems in 2007, after that it was presented at the International Conference on Emerging Nuclear En... The author's Process of Cold Fusion firstly was announced at the International Conference on Emerging Nuclear Energy Systems in 2007, after that it was presented at the International Conference on Emerging Nuclear Energy Systems in 2009. The product has already been applied since June, 2007. It was developed as a large Module of 300 cm x 40 cm, producing energy at 600 megawatts per hour, with unique waste of about 300 cubic meters of pure drinkable instant water a day. There is also a Portable Module, producing about 1 megawatt per hour, having in waste about 1 cubic meter of pure drinkable instant water a day. The important details: (1) we have the ability to stop the Module at any time; (2) the civil applications of this process is mentioned at the articles, published on the website of the European Scientific Parliament in the year of 2010; (3) the diverse modules became the object of special protocols, signed with a number of countries all over the world. 展开更多
关键词 Nuclear energy for humanity useful electricity HEAT pure instant water.
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