A new fit of the pion parton distribution functions is provided. Only valence quark distributions are used at a low evolution scale and are evolved with the modified Dokshitzer- Gribov-Lipatov-Altarelli-Parisi equatio...A new fit of the pion parton distribution functions is provided. Only valence quark distributions are used at a low evolution scale and are evolved with the modified Dokshitzer- Gribov-Lipatov-Altarelli-Parisi equation which is briefly introduced in this work, and the sea quark and gluon distributions are only generated by the quantum chromodynamics processes. We find that the patton distributions can explain the pion-nucleon experiments data well, and it can also be compared with the data from the leading neutron data of experiments at HERA. The momentum distributions among the partons are discussed and our results are consistent with some models.展开更多
Xinjiang Institute of Ecology and Geography（XJEG）,Chinese Academy of Science（CAS）,established three new research departments in 2011.They are Department of Geology Mineralization and Mineral Resources,Department o...Xinjiang Institute of Ecology and Geography（XJEG）,Chinese Academy of Science（CAS）,established three new research departments in 2011.They are Department of Geology Mineralization and Mineral Resources,Department of Environmental Pollution and Process Control, and Department of Central Asian Cooperation and Coordinated Development, respectively. Now, there are a total of eight research departments in XJEG, CAS.展开更多
The Tonghua region in the east of the Songliao Basin is a high-risk and blank area of petroleum exploration. The unrevealed key problems including the growth of source rocks, hydrocarbon generation potential and oil a...The Tonghua region in the east of the Songliao Basin is a high-risk and blank area of petroleum exploration. The unrevealed key problems including the growth of source rocks, hydrocarbon generation potential and oil and gas source and the low exploration degree have constrained the further study of petroleum geological conditions and exploration deployment. Based on outcrop and core observations, geological section survey, trench exploration, high-precision gravity and magnetism and geological survey wells, this work discussed the basic geological conditions, main hydrocarbon source rocks, hydrocarbon generation potential and the oil and gas source.展开更多
The Nanjing International Symposium of New Frontiers in Cancer Research will be held on Nov 9-10, 2007. The purpose of this symposium is to stimulate a dialogue among basic and clinical cancer researchers between Chin...The Nanjing International Symposium of New Frontiers in Cancer Research will be held on Nov 9-10, 2007. The purpose of this symposium is to stimulate a dialogue among basic and clinical cancer researchers between China and other countries to speed up translation of new findings in basic cancer biology into disease prevention, diagnosis, and treatment. We hope to use this conference as a forum to create a unique opportunity for exchange in current discoveries, fostering multidisciplinary collaborations, and identification of future opportunities in cancer treatment and patient care. There will be four sessions in this symposium：展开更多
Based on,but not limited to the research results of electrical engineering published in the special issue of Science in China Series E,June 2008,this essay gives a brief review on a wide range of state-of-art advancem...Based on,but not limited to the research results of electrical engineering published in the special issue of Science in China Series E,June 2008,this essay gives a brief review on a wide range of state-of-art advancement in electrical engineering field of China,which includes power system modeling,analysis and control,risk assessments in power system,etc.展开更多
The year 2016 was a wonderful and important one for Zoological Research（ZR）.In recognition of its impressive progress and great potential to develop into a leading journal in the field,ZR is now supported by the“Pr...The year 2016 was a wonderful and important one for Zoological Research（ZR）.In recognition of its impressive progress and great potential to develop into a leading journal in the field,ZR is now supported by the“Project for Enhancing International Impact of China STM Journals”（PIIJ）（Class B）（2016–2018）.展开更多
Time is flying. As Chuang Tzu, a Zhou Dynasty Chinese philosopher, said ＂time goes like a young horse scampering past a narrow cleft＂. The end of a year is a link between what came before and what follows, and is an...Time is flying. As Chuang Tzu, a Zhou Dynasty Chinese philosopher, said ＂time goes like a young horse scampering past a narrow cleft＂. The end of a year is a link between what came before and what follows, and is an opportune time for reflection and anticipation.展开更多
Asian Herpetological Research （AHR）, an international English language joumal, is published quarterly by the Chengdu Institute of Biology （CIB）, Chinese Academy of Sciences, and the Science Press of China, coopera...Asian Herpetological Research （AHR）, an international English language joumal, is published quarterly by the Chengdu Institute of Biology （CIB）, Chinese Academy of Sciences, and the Science Press of China, cooperated with the Asiatic Herpetological Research Society （AHRS）, with its registered numbers： CN 51-1735/Q and ISSN 2095- 0357. The scope of the journal includes all contemporary herpetological research areas including taxonomy, fauna, morphology, phylogeny, systematics, evolution, zoogeography, physiology, ecology, toxicology and conservation biology of amphibians and reptiles.展开更多
At the beginning of a wonderful new year, we look back at Zoological Research （ZR） in 2017. We are very grateful to all our readers and authors for your dedication and continued support of ZR. Your ideas, input, and...At the beginning of a wonderful new year, we look back at Zoological Research （ZR） in 2017. We are very grateful to all our readers and authors for your dedication and continued support of ZR. Your ideas, input, and enthusiasm have been of immense value in helping us to improve the journal. Here, we would like to share a few memorable events and people of the past year.展开更多
A new type of machinable bioactive glass-ceramics for bone substitution has been developed in the glass system SiO_2-MgO-K_2O-F^--CaO-P_2O_5, which contains Mg- muscovite [K_2Mg_5 (Si_8O_(20)) F_4] and fluorapatite as...A new type of machinable bioactive glass-ceramics for bone substitution has been developed in the glass system SiO_2-MgO-K_2O-F^--CaO-P_2O_5, which contains Mg- muscovite [K_2Mg_5 (Si_8O_(20)) F_4] and fluorapatite as the two main crystal phases. The phase separation and the crystallization of the glass have been studied. A series of tests have showed that the material is good at mechanical property and bioactivity. Espe- cially, by analysing the structure of the interface layer between the material and the bone of animal with scanning electron microscope, electron probe, etc., it has been found that the new bone hydroxya- patite is formed on the surface of the material so that the material is connected firmly with the bone.展开更多
At the age of 86, Prof. Zhong Xiangchong has his new book—＂Research on High Performance New Refractories＂ published by Henan Science and Technology Publishing House to commemorate his 65 years service in the refrac...At the age of 86, Prof. Zhong Xiangchong has his new book—＂Research on High Performance New Refractories＂ published by Henan Science and Technology Publishing House to commemorate his 65 years service in the refractories science and technology including the recent 6 years at High Temperature Ceramics Institute which he founded in Zhengzhou University in 2001.展开更多
Association mapping(as opposed to population mapping) is becoming more important in establishing associations between a phenotype and a genotype.The major advantage of association mapping,
Since President Obama announced the Precision Medicine Initiative from a national strategy perspective in his State of the Union address,precision medicine has rapidly become a world-wide hotspot and drawn global atte...Since President Obama announced the Precision Medicine Initiative from a national strategy perspective in his State of the Union address,precision medicine has rapidly become a world-wide hotspot and drawn global attention in the medical field.Precision medicine aims at applying genetic information of individual diseases to guide his or her diagnosis and treatment.展开更多
On behalf of the American Association for Cancer Research(AACR),we have the great pleasure to invite you to attend the New Horizons in Cancer Research Conference:Delivering Cures Through Cancer Science,which will be h...On behalf of the American Association for Cancer Research(AACR),we have the great pleasure to invite you to attend the New Horizons in Cancer Research Conference:Delivering Cures Through Cancer Science,which will be held from November 2-5,2016,in Shanghai,China.This third conference in this series has,once again,been designed to highlight some of the very展开更多
Broadband Wireless Access (BWA) has become one of the major evolution trends in the fields of broadband access and mobile communications. However,some difficulties emerged during the application and industrialization ...Broadband Wireless Access (BWA) has become one of the major evolution trends in the fields of broadband access and mobile communications. However,some difficulties emerged during the application and industrialization of the BWA system,which calls for typical service models,key technology innovations and backbone support from broadband Internet. This article introduces a Broadband Wireless Multimedia (BWM) access system. It aims to build a new-type "triple play" BWA network by integrating terrestrial digital TV system and the BWA system,and by taking broadband Internet as its core network platform. A primary research shows that the new BWA system is an effective solution to the existing difficulties of BWA system. Moreover,it is quite competitive in service provision,service coverage,frequency planning,terminal power consumption and cost for network construction.展开更多
PART TWOThe Research on Chinese Huai TangNine Acupuncture Needles TherapyI The theoretical basis of ChineseHuai Tang Nine Needles Therapy.1) The kernel of the theoretical basis ofChinese Huai Tang Nine Needles Therapy...PART TWOThe Research on Chinese Huai TangNine Acupuncture Needles TherapyI The theoretical basis of ChineseHuai Tang Nine Needles Therapy.1) The kernel of the theoretical basis ofChinese Huai Tang Nine Needles Therapy.Chinese Huai Tang Nine Needles Therapyis to give full play to the treatment action of thespecifity and entirety of each needle. The speci-fity means that each needle has its own展开更多
Objective To help investors assess and control the costs of new drug development and reduce the risks of new drug development projects.Methods Cost analysis and financial forecasting were carried out with the integrat...Objective To help investors assess and control the costs of new drug development and reduce the risks of new drug development projects.Methods Cost analysis and financial forecasting were carried out with the integrated approach of earned value management.According to the principle of earned value management deviation analysis,the basic process of the new drug research and development project was combined with the hypothesis method from the research of Tufts Drug Development Research Center.Results and Conclusion If the project progress check was carried out in the clinical trial,the project costs were found overspent,the efficiency was low,the project progress was faster,and the resource investment was ahead.It is recommended that the adjustment should be made to reduce the input of resources,and increase the efficient key personnel to take the place of some less efficient staff.展开更多
The Chinese Academy of Science (CAS), the top national research hub for natural sciences, has always been committed itself to the national target of research and development (R&D) of new medicines. During the past...The Chinese Academy of Science (CAS), the top national research hub for natural sciences, has always been committed itself to the national target of research and development (R&D) of new medicines. During the past several decades, a great number of R&D achievements have been attained. During the period from 1986 to 1999, for example, 135 pharmacutical projects won prizes of the CAS awards for natural sciences, inventions and S&T progress (roughly ac-展开更多
Basic research is one of the main tasks constantly undertaken by the CAS.Its evolutionary course, just like the growth itinerary of the whole Academy,began in the 1950s,with a robust development from the late 1950s to...Basic research is one of the main tasks constantly undertaken by the CAS.Its evolutionary course, just like the growth itinerary of the whole Academy,began in the 1950s,with a robust development from the late 1950s to the early 1960s, the ravages during the chaotic decade of the "cultural revolution", the succeeding institutional readjustment and academic revival since the implementation of the on-going reform drive and the "open-door" policy. During the early founding years of the CAS, there were only odds and ends attained from its research work in some disciplines展开更多
文摘A new fit of the pion parton distribution functions is provided. Only valence quark distributions are used at a low evolution scale and are evolved with the modified Dokshitzer- Gribov-Lipatov-Altarelli-Parisi equation which is briefly introduced in this work, and the sea quark and gluon distributions are only generated by the quantum chromodynamics processes. We find that the patton distributions can explain the pion-nucleon experiments data well, and it can also be compared with the data from the leading neutron data of experiments at HERA. The momentum distributions among the partons are discussed and our results are consistent with some models.
文摘Xinjiang Institute of Ecology and Geography（XJEG）,Chinese Academy of Science（CAS）,established three new research departments in 2011.They are Department of Geology Mineralization and Mineral Resources,Department of Environmental Pollution and Process Control, and Department of Central Asian Cooperation and Coordinated Development, respectively. Now, there are a total of eight research departments in XJEG, CAS.
基金financially supported by the National Science Foundation of China(grant No.D020641372123)
文摘The Tonghua region in the east of the Songliao Basin is a high-risk and blank area of petroleum exploration. The unrevealed key problems including the growth of source rocks, hydrocarbon generation potential and oil and gas source and the low exploration degree have constrained the further study of petroleum geological conditions and exploration deployment. Based on outcrop and core observations, geological section survey, trench exploration, high-precision gravity and magnetism and geological survey wells, this work discussed the basic geological conditions, main hydrocarbon source rocks, hydrocarbon generation potential and the oil and gas source.
文摘The Nanjing International Symposium of New Frontiers in Cancer Research will be held on Nov 9-10, 2007. The purpose of this symposium is to stimulate a dialogue among basic and clinical cancer researchers between China and other countries to speed up translation of new findings in basic cancer biology into disease prevention, diagnosis, and treatment. We hope to use this conference as a forum to create a unique opportunity for exchange in current discoveries, fostering multidisciplinary collaborations, and identification of future opportunities in cancer treatment and patient care. There will be four sessions in this symposium：
基金Supported by the National Science Fundation of China (Grant No.50525721,50595411)the National Basic Research Program of China (Grant No.2004CB217900)
文摘Based on,but not limited to the research results of electrical engineering published in the special issue of Science in China Series E,June 2008,this essay gives a brief review on a wide range of state-of-art advancement in electrical engineering field of China,which includes power system modeling,analysis and control,risk assessments in power system,etc.
文摘The year 2016 was a wonderful and important one for Zoological Research（ZR）.In recognition of its impressive progress and great potential to develop into a leading journal in the field,ZR is now supported by the“Project for Enhancing International Impact of China STM Journals”（PIIJ）（Class B）（2016–2018）.
文摘Time is flying. As Chuang Tzu, a Zhou Dynasty Chinese philosopher, said ＂time goes like a young horse scampering past a narrow cleft＂. The end of a year is a link between what came before and what follows, and is an opportune time for reflection and anticipation.
文摘Asian Herpetological Research （AHR）, an international English language joumal, is published quarterly by the Chengdu Institute of Biology （CIB）, Chinese Academy of Sciences, and the Science Press of China, cooperated with the Asiatic Herpetological Research Society （AHRS）, with its registered numbers： CN 51-1735/Q and ISSN 2095- 0357. The scope of the journal includes all contemporary herpetological research areas including taxonomy, fauna, morphology, phylogeny, systematics, evolution, zoogeography, physiology, ecology, toxicology and conservation biology of amphibians and reptiles.
文摘At the beginning of a wonderful new year, we look back at Zoological Research （ZR） in 2017. We are very grateful to all our readers and authors for your dedication and continued support of ZR. Your ideas, input, and enthusiasm have been of immense value in helping us to improve the journal. Here, we would like to share a few memorable events and people of the past year.
文摘A new type of machinable bioactive glass-ceramics for bone substitution has been developed in the glass system SiO_2-MgO-K_2O-F^--CaO-P_2O_5, which contains Mg- muscovite [K_2Mg_5 (Si_8O_(20)) F_4] and fluorapatite as the two main crystal phases. The phase separation and the crystallization of the glass have been studied. A series of tests have showed that the material is good at mechanical property and bioactivity. Espe- cially, by analysing the structure of the interface layer between the material and the bone of animal with scanning electron microscope, electron probe, etc., it has been found that the new bone hydroxya- patite is formed on the surface of the material so that the material is connected firmly with the bone.
文摘At the age of 86, Prof. Zhong Xiangchong has his new book—＂Research on High Performance New Refractories＂ published by Henan Science and Technology Publishing House to commemorate his 65 years service in the refractories science and technology including the recent 6 years at High Temperature Ceramics Institute which he founded in Zhengzhou University in 2001.
文摘Association mapping(as opposed to population mapping) is becoming more important in establishing associations between a phenotype and a genotype.The major advantage of association mapping,
文摘Since President Obama announced the Precision Medicine Initiative from a national strategy perspective in his State of the Union address,precision medicine has rapidly become a world-wide hotspot and drawn global attention in the medical field.Precision medicine aims at applying genetic information of individual diseases to guide his or her diagnosis and treatment.
文摘On behalf of the American Association for Cancer Research(AACR),we have the great pleasure to invite you to attend the New Horizons in Cancer Research Conference:Delivering Cures Through Cancer Science,which will be held from November 2-5,2016,in Shanghai,China.This third conference in this series has,once again,been designed to highlight some of the very
文摘Broadband Wireless Access (BWA) has become one of the major evolution trends in the fields of broadband access and mobile communications. However,some difficulties emerged during the application and industrialization of the BWA system,which calls for typical service models,key technology innovations and backbone support from broadband Internet. This article introduces a Broadband Wireless Multimedia (BWM) access system. It aims to build a new-type "triple play" BWA network by integrating terrestrial digital TV system and the BWA system,and by taking broadband Internet as its core network platform. A primary research shows that the new BWA system is an effective solution to the existing difficulties of BWA system. Moreover,it is quite competitive in service provision,service coverage,frequency planning,terminal power consumption and cost for network construction.
文摘PART TWOThe Research on Chinese Huai TangNine Acupuncture Needles TherapyI The theoretical basis of ChineseHuai Tang Nine Needles Therapy.1) The kernel of the theoretical basis ofChinese Huai Tang Nine Needles Therapy.Chinese Huai Tang Nine Needles Therapyis to give full play to the treatment action of thespecifity and entirety of each needle. The speci-fity means that each needle has its own
文摘Objective To help investors assess and control the costs of new drug development and reduce the risks of new drug development projects.Methods Cost analysis and financial forecasting were carried out with the integrated approach of earned value management.According to the principle of earned value management deviation analysis,the basic process of the new drug research and development project was combined with the hypothesis method from the research of Tufts Drug Development Research Center.Results and Conclusion If the project progress check was carried out in the clinical trial,the project costs were found overspent,the efficiency was low,the project progress was faster,and the resource investment was ahead.It is recommended that the adjustment should be made to reduce the input of resources,and increase the efficient key personnel to take the place of some less efficient staff.
文摘The Chinese Academy of Science (CAS), the top national research hub for natural sciences, has always been committed itself to the national target of research and development (R&D) of new medicines. During the past several decades, a great number of R&D achievements have been attained. During the period from 1986 to 1999, for example, 135 pharmacutical projects won prizes of the CAS awards for natural sciences, inventions and S&T progress (roughly ac-
文摘Basic research is one of the main tasks constantly undertaken by the CAS.Its evolutionary course, just like the growth itinerary of the whole Academy,began in the 1950s,with a robust development from the late 1950s to the early 1960s, the ravages during the chaotic decade of the "cultural revolution", the succeeding institutional readjustment and academic revival since the implementation of the on-going reform drive and the "open-door" policy. During the early founding years of the CAS, there were only odds and ends attained from its research work in some disciplines
