期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
Research on the Formation Modes of Emerging Technologies Based on the Species Origin Theory
1
作者 宋艳 银路 《Journal of Electronic Science and Technology of China》 2006年第4期397-401,共5页
Based on the research on emerging technologies and "the technology species", this thesis tries to find out the homologous relations between emerging technology and new species. The theory of the new biology species ... Based on the research on emerging technologies and "the technology species", this thesis tries to find out the homologous relations between emerging technology and new species. The theory of the new biology species in synthetic evolution and the modern genetics is referred in the research. The modes of forming emerging technologies are discussed through some examples of IT evolvement according to modes of the biology speciation. Finally, it is pointed out that the biology species origin theory can analogize continuously the research about the evolvement mode of every emerging technology, and the implications have been bought to enterprises based on the formation conditions of each mode. 展开更多
关键词 emerging technology SPECIES IT evolvement formation mode
下载PDF
The mechanism of unconventional hydrocarbon formation: Hydrocarbon self-sealing and intermolecular forces 被引量:3
2
作者 JIA Chengzao PANG Xiongqi SONG Yan 《Petroleum Exploration and Development》 CSCD 2021年第3期507-526,共20页
The successful development of unconventional hydrocarbons has significantly increased global hydrocarbon resources, promoted the growth of global hydrocarbon production and made a great breakthrough in classical oil a... The successful development of unconventional hydrocarbons has significantly increased global hydrocarbon resources, promoted the growth of global hydrocarbon production and made a great breakthrough in classical oil and gas geology. The core mechanism of conventional hydrocarbon accumulation is the preservation of hydrocarbons by trap enrichment and buoyancy, while unconventional hydrocarbons are characterized by continuous accumulation and non-buoyancy accumulation. It is revealed that the key of formation mechanism of the unconventional reservoirs is the self-sealing of hydrocarbons driven by intermolecular forces. Based on the behavior of intermolecular forces and the corresponding self-sealing, the formation mechanisms of unconventional oil and gas can be classified into three categories:(1) thick oil and bitumen, which are dominated by large molecular viscous force and condensation force;(2) tight oil and gas, shale oil and gas and coal-bed methane, which are dominated by capillary forces and molecular adsorption;and(3) gas hydrate, which is dominated by intermolecular clathration. This study discusses in detail the characteristics, boundary conditions and geological examples of self-sealing of the five types of unconventional resources, and the basic principles and mathematical characterization of intermolecular forces. This research will deepen the understanding of formation mechanisms of unconventional hydrocarbons, improve the ability to predict and evaluate unconventional oil and gas resources, and promote the development and production techniques and potential production capacity of unconventional oil and gas. 展开更多
关键词 unconventional hydrocarbons hydrocarbon reservoir formation mechanism SELF-SEALING intermolecular forces hydrocarbon self-sealing formation mode hydrocarbon exploration and development
下载PDF
Antisense RNA: the new favorite in genetic research 被引量:2
3
作者 Jian-zhong XU Jun-lan ZHANG Wei-guo ZHANG 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2018年第10期739-749,共11页
Antisense RNA molecule represents a unique type of DNA transcript that comprises 19-23 nucleotides and is complementary to mRNA. Antisense RNAs play the crucial role in regulating gene expression at multiple levels, s... Antisense RNA molecule represents a unique type of DNA transcript that comprises 19-23 nucleotides and is complementary to mRNA. Antisense RNAs play the crucial role in regulating gene expression at multiple levels, such as at replication, transcription, and translation. In addition, artificial antisense RNAs can effectively regulate the expression of related genes in host cells. With the development of antisense RNA, investigating the functions of antisense RNAs has emerged as a hot research field. This review summarizes our current understanding of antisense RNAs, particularly of the formation of antisense RNAs and their mechanism of regulating the expression of their target genes. In addition, we detail the effects and applications of antisense RNAs in antivirus and anticancer treatments and in regulating the expression of related genes in plants and microorganisms. This review is intended to highlight the key role of antisense RNA in genetic research and guide new investigators to the study of antisense RNAs. 展开更多
关键词 Antisense RNA formation mode Regulatory mechanism Application field Genetic research
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部