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The Importance of Fiber Production for Conservation of Native Sheep and Goat Breeds and Silkworm Lines in Turkey
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作者 Gursel Dellal Zeynep Erdogan +2 位作者 Erkan Pehlivan Feryal Soylemezoglu Aysem Yanar 《Journal of Life Sciences》 2012年第7期826-831,共6页
In Turkey, studies devoted to conservation of animal genetic resources are carried out by general directorate of agricultural research (TAGEM) under the ministry of food, agriculture and livestock. There are 9 sheep... In Turkey, studies devoted to conservation of animal genetic resources are carried out by general directorate of agricultural research (TAGEM) under the ministry of food, agriculture and livestock. There are 9 sheep and 3 goat breeds and 3 silkworm lines which produce animal fiber have been put under conservation by TAGEM since 1996. A considerable amount of these genotypcs are preserved as in situ. The success of this conservation method is directly associated with economically making the best of these genotypes which are preserved. Hence, making the most of fiber production alongside meat and milk production would make a great contribution to their conservation. For this purpose, determining production biology of mohair and textile features of Ankara goats at present, determining all features of traditional items (especially handicrafts) made of fibers obtained from these breeds and lines which have been put under protection and creating new usage areas have been issues worked upon. Along with this, in recent years, just as the world, especially EU countries, interests and studies for issues such as organic animal fiber production, rural development and geographical indications have been increasing in Turkey, as well. In the near future, this situation is supposed to have a great effect on increasing of animal fiber production in a positive way, too. Hence, to benefit more effectively from fibers obtained from these breeds which have been put under protection will make a great contribution to be protected by breeders. For this purpose, there will be studies in the near future devoted to determining production biology of fiber and determining features of textile in breeds and lines and increasing the consumption of products to be obtained from these fibers as well as Ankara goats. Therefore, in this article, it was emphasized on the more efficient of ways to be benefited from fiber production in these breeds and lines under protected. 展开更多
关键词 SHEEP goat and silkworm genetic resources CONSERVATION fiber production.
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Chinese Standards an Refractories Refractory-Ceramic Fiber and the Products
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作者 Liu Chunhong Wang Jing +1 位作者 Yu Lingyan Peng Xigao 《China's Refractories》 CAS 2014年第1期43-51,共9页
1 Scope This standard specifies the terms, definitions, classifications, brands, technical requirements, test methods, quality appraisal procedure, packing, marking, transportation, storage and quality certificate of ... 1 Scope This standard specifies the terms, definitions, classifications, brands, technical requirements, test methods, quality appraisal procedure, packing, marking, transportation, storage and quality certificate of ceramic fiher and the products. 展开更多
关键词 Chinese Standards an Refractories Refractory-Ceramic fiber and the Products LENGTH
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Saurer’s Fiber Production in 2006
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作者 LIU Shuang 《China Textile》 2007年第4期42-43,共2页
Since early 2007,Saurer has been a part of OC Oerlikon Corporation AG,Pfffikon.
关键词 SAURER s fiber Production in 2006
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Global Fiber Production Exceeded 70 Million Tonnes in 2009
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作者 Edited Wang Ting 《China Textile》 2010年第8期52-55,共4页
In June,the Oerlikon Group released its annual Textile Report"The Fiber Year" for the tenth time.As it declared,the Asian position in world textile and apparel industry further increased at the expense of Eu... In June,the Oerlikon Group released its annual Textile Report"The Fiber Year" for the tenth time.As it declared,the Asian position in world textile and apparel industry further increased at the expense of European and American activities. 展开更多
关键词 Global fiber Production Exceeded 70 Million Tonnes in 2009
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New Type Color Fiber Application&Trend of Color Spun Product Seminar Open in May
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《China Textile》 2009年第5期15-15,共1页
Cope with the global financial crisis,domestic Chinese textile enterprises is facing with more challenges and
关键词 OPEN New Type Color fiber Application&Trend of Color Spun Product Seminar Open in May
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Study on the mechanism and law of temperature,humidity and moisture content on the mechanical properties of molded fiber products
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作者 Zhiqiang Fu Tong Zhao +5 位作者 Hu Wang Jingyi Wei Haozhe Liu Liying Duan Yan Wang Ruixiang Yan 《Journal of Bioresources and Bioproducts》 EI CSCD 2024年第3期351-368,共18页
The change of temperature, humidity and moisture content (MC) will lead to the change of mechanical properties of molded fiber products (MFP). However, it is difficult to decouple the effects of temperature, humidity ... The change of temperature, humidity and moisture content (MC) will lead to the change of mechanical properties of molded fiber products (MFP). However, it is difficult to decouple the effects of temperature, humidity and MC on the mechanical properties of MFP, and predict the mechanical properties of MFP during the use. In this study, the laws and mechanism of mechanical properties of MFP with ambient temperature, humidity and MC were studied. The results showed that the direct effect of temperature (20−70 °C) on mechanical properties of MFP was insignificant, and the mechanical properties of MFP were mainly changed by MC. The MC was related to ambient temperature and humidity, and the relationship between the three could be described by the modified Guggenheim-Anderson-de Boer (GAB) model (20−70 °C and 30 %–90 % relative humidity). With the increase of MC, the elastic modulus and fracture strain was increased and decreased linearly, the yield strength and failure strength were presented GaussAmp laws, and the failure strain was presented asymptotic regressed distribution law. Two fracture modes of MFP, brittle fracture and ductile fracture, were revealed by the scanning electron microscopy of the mesoscopic fiber structure of sugarcane bagasse molded fiber products. The mathematical models and the changes of fiber structure were verified by wheat straw molded fiber products and waste paper molded fiber products. This study was contributed to understand the effects and mechanism of the change of temperature, humidity and MC on the mechanical properties of MFP. 展开更多
关键词 TEMPERATURE Relative humidity Moisture content Molded fiber products Mechanical properties
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Variables separated equations:Strikingly different roles for the Branch Cycle Lemma and the finite simple group classification 被引量:1
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作者 FRIED Michael D. 《Science China Mathematics》 SCIE 2012年第1期1-72,共72页
Davenport's Problem asks:What can we expect of two polynomials,over Z,with the same ranges on almost all residue class fields? This stood out among many separated variable problems posed by Davenport,Lewis and Sch... Davenport's Problem asks:What can we expect of two polynomials,over Z,with the same ranges on almost all residue class fields? This stood out among many separated variable problems posed by Davenport,Lewis and Schinzel.By bounding the degrees,but expanding the maps and variables in Davenport's Problem,Galois stratification enhanced the separated variable theme,solving an Ax and Kochen problem from their Artin Conjecture work.Denef and Loeser applied this to add Chow motive coefficients to previously introduced zeta functions on a diophantine statement.By restricting the variables,but leaving the degrees unbounded,we found the striking distinction between Davenport's problem over Q,solved by applying the Branch Cycle Lemma,and its generalization over any number field,solved by using the simple group classification.This encouraged Thompson to formulate the genus 0 problem on rational function monodromy groups.Guralnick and Thompson led its solution in stages.We look at two developments since the solution of Davenport's problem.Stemming from MacCluer's 1967 thesis,identifying a general class of problems,including Davenport's,as monodromy precise.R(iemann)E(xistence)T(heorem)'s role as a converse to problems generalizing Davenport's,and Schinzel's (on reducibility).We use these to consider:Going beyond the simple group classification to handle imprimitive groups,and what is the role of covers and correspondences in going from algebraic equations to zeta functions with Chow motive coefficients. 展开更多
关键词 group representations normal varieties Galois stratification Davenport pair Monodromy group primitive group COVERS fiber products Open Image Theorem Riemann's existence theorem genus zero problem
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High gain-bandwidth product Ge/Si tunneling avalanche photodiode with high-frequency tunneling effect 被引量:1
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作者 Wenzhou Wu Buwen Cheng +4 位作者 Jun Zheng Zhi Liu Chuanbo Li Yuhua Zuo Chunlai Xue 《Journal of Semiconductors》 EI CAS CSCD 2017年第11期55-59,共5页
This study presents a theoretical investigation of a novel Ge/Si tunneling avalanche photodiode(TAPD)with an ultra-thin barrier layer between the absorption and p+ contact layer. A high-frequency tunneling effect i... This study presents a theoretical investigation of a novel Ge/Si tunneling avalanche photodiode(TAPD)with an ultra-thin barrier layer between the absorption and p+ contact layer. A high-frequency tunneling effect is introduced into the structure of the barrier layer to increase the high-frequency response when frequency is larger than 0.1 GHz, and the-3 dB bandwidth of the device increases evidently. The results demonstrate that the avalanche gain and-3 dB bandwidth of the TAPD can be influenced by the thickness and bandgap of the barrier layer.When the barrier thickness is 2 nm and the bandgap is 4.5 eV, the avalanche gain loss is negligible and the gainbandwidth product of the TAPD is 286 GHz, which is 18% higher than that of an avalanche photodiode without a barrier layer. The total noise in the TAPD was an order of magnitude smaller than that in APD without barrier layer. 展开更多
关键词 avalanche photodiode high-frequency tunneling effect high gain-bandwidth product fiber optic communication
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Soil and land resources for agricultural production:General trends and future scenarios-A worldwide perspective
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作者 Winfried E.H.Blum 《International Soil and Water Conservation Research》 SCIE 2013年第3期1-14,共14页
Based on the global distribution of land and soil quality and the world population,future trends in the agricultural use of land and soil resources are described,which will severely compromise future global food and f... Based on the global distribution of land and soil quality and the world population,future trends in the agricultural use of land and soil resources are described,which will severely compromise future global food and fiber production through the increase and the spatial changes of world population,through the loss of fertile land caused by insufficient soil management and through urbanisation and industrialization Moreover,future changes in life style and the increasing demand for food and bioenergy,trough changes in world economy,through climate change and a worldwide decrease in fresh water supply,sustainable land use for the production of food and fiber will be under threat.Until 2050 global food production must be doubled for satisfying global needs.Our scenarios should help to preview future changes,to counterbalance and to mitigate possible negative impacts,thus sustaining global food security. 展开更多
关键词 Global distribution of land and soil quality Future trends in the use of land resources Food and fiber production Food security
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