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81.
Power loss simulations for the 2, 14, and 20 mrad extraction line designs using the BDSIM toolkit are presented. A preliminary
study on the backgrounds from the beam losses along the extraction line in the case of 20 mrad with high luminosity parameters
is also given.
相似文献
82.
Ties Behnke 《Pramana》2007,69(5):697-702
In preparation of the experimental program at the international linear collider (ILC), the large detector concept (LDC) is
being developed. The main points of the LDC are a large volume gaseous tracking system, combined with high precision vertex
detector and an extremely granular calorimeter. The main design force behind the LDC is the particle flow concept.
for the LDC Concept Group 相似文献
83.
A survey of various aspects of the theory and application of degeneracy graphs (DGs for short) is given. The notion and some basic properties of DGs are introduced, cycling of the simplex method is discussed, the neighborhood problem is tackled, and the application of the so-called optimum DGs to particular problems which are connected with optimal degenerate solutions of a linear programming problem is presented. The impact of weakly redundant constraints on various postoptimal analyses under degeneracy is briefly described. 相似文献
84.
Saori Ishizu Mizuki Sekiya Ken-ichi Ishibashi Yumi Negami Masafumi Ata 《Journal of nanoparticle research》2008,10(2):229-254
The societal impacts of nanotechnology have attracted growing attention in the United States and Europe in recent years. In
Japan, the National Institute of Advanced Industrial Science and Technology (Technology Information Department) has played
a central role in promoting discussions on this topic by collecting information from Japan and overseas, creating a network
of the interested parties, and providing a forum for discussion. This paper presents a summary of recent activities in Japan
relating to the societal impacts of nanotechnology, fro the launch of the “Nanotechnology and Society” open forum (August
2004) until the “Nanotechnology Debate” discussion forum (February 2007), and outlines the policy recommendations that came
out of a project entitled “Research on Facilitation of Public Acceptance of Nanotechnology” (March 2006). 相似文献
85.
The worldwide investment in nanotechnology research and development (R&D) reported by national government organizations and
EC has increased approximately 9-fold in the last 8 years – from $432 million in 1997 to about $4,100 million in 2005. The
proportion of national government investments for: academic R&D and education are between 20% (Korea, Taiwan) and 65% (US),
industrial R&D – between 5% (US) and 60% (Korea, Taiwan), and core facilities and government laboratories – about 20–25% in
all major contributing economies. This evaluation uses the NNI definition of nanotechnology (that excludes MEMS or microelectronics),
and is based on direct information and analysis with managers of nanotechnology R&D programs in the respective countries. 相似文献
86.
The structural data for the five-membered ring of unsubstituted saccharinato ligands/ions in saccharinates are retrieved from the Cambridge Structural Database and analyzed. The average geometries of saccharin and the corresponding deprotonated species in the solid state are obtained and the extreme cases of highly distorted structures are pointed out. The influence of the nature of the metal ion as well as of the type of the metal-to-saccharinato bonding on the saccharinato geometry is examined. On going from saccharin or covalent saccharinates to ionic ones the bonds adjacent to the nitranionic center are shortened, while the carbonyl and sulfonyl groups are simultaneously stretched. The value of the internal angle at the nitrogen atom is lowered and that at the sulfur atom is increased, causing bending of the angle between the sulfonyl oxygen atoms. The average geometries are reproduced well by several (semiempirical and ab initio) theoretical models. 相似文献
87.
Magnus Holmgren 《Accreditation and quality assurance》2004,9(1-2):90-91
The Swedish National Testing and Research Institute (SP) asked its clients in its 2001–2002 customer satisfaction survey how they valued an accredited test result on a scale of 1-6. As many as 81% of the recipients answered that it was important (a score of 5 or 6 on the scale ) to have an accredited test result. 12% found the question irrelevant, which could be interpreted as that they used some of SPs non-accredited services, or were just not interested in accredited test reports. 相似文献
88.
宁波天童森林公园两栖爬行动物初步调查 总被引:1,自引:0,他引:1
在1994~2000年间记录了天童森林公园活动的两栖动物15种,隶属2目6科,爬行动物30种,隶属3目8科.两栖动物东洋界种占80.0%,古北界种占20.0%;爬行动物东洋界种占76.7%,古北界东洋界广布种占23.3%,具有南北过渡特征,并对其区系成分进行了分析. 相似文献
89.
90.
Lawrence M. Henling Richard E. Marsh 《Acta Crystallographica. Section C, Structural Chemistry》2014,70(9):834-836
A survey of approximately 100 000 entries in recent releases of the Cambridge Structural Database (CSD) has uncovered 156 crystal structures that were apparently described in inappropriate space groups. We have revised these space groups and prepared CIFs containing the new coordinates and brief comments describing the revisions. 相似文献