Only ZTE can deliver end-to-end equipment for all 3G standards-WCDMA, CDMA2000, TD-SCDMA and WiMAX. Our WCDMA solutions are used in 30 countries and regions,
Only ZTE can deliver end-to-end equipment for all 3G standards-WCDMA, CDMA2000, TD-SCDMA and WiMAX. Our WCDMA solutions are used in 30 countries and regions, and our CDMA systems are used by 120 operators in more than...Only ZTE can deliver end-to-end equipment for all 3G standards-WCDMA, CDMA2000, TD-SCDMA and WiMAX. Our WCDMA solutions are used in 30 countries and regions, and our CDMA systems are used by 120 operators in more than 70 countries.展开更多
From the discussion above, the 3G choice of China is difficult to makerapidly because of multiple complicated factors. Either delay or impulsion will be costly. So theChinese government regulators need intensive and c...From the discussion above, the 3G choice of China is difficult to makerapidly because of multiple complicated factors. Either delay or impulsion will be costly. So theChinese government regulators need intensive and careful study on key factors before making a rightdecision. But the following policy trends can be inferred: (1)The regulator will not use the auctionlike Europe to issue 3G licenses; (2)Three 3G standards will co-exist in China mobile market withmultiple 3G services competition; (3)The 3G licenses schedule of China will inevitably be associatedwith the market demand and standard mature.展开更多
特藏资源往往是由数量众多、类型多样的文献所组成,对特藏资源的组织和著录不仅需要对构成特藏的每一种单一文献进行描述,更需要对特藏的整体及文献间的关系进行揭示。国内存在仍然以单种/册文献为著录对象、缺少对资源间层级关系的揭...特藏资源往往是由数量众多、类型多样的文献所组成,对特藏资源的组织和著录不仅需要对构成特藏的每一种单一文献进行描述,更需要对特藏的整体及文献间的关系进行揭示。国内存在仍然以单种/册文献为著录对象、缺少对资源间层级关系的揭示、著录未遵循统一标准等问题,严重影响到特藏资源的使用,也影响到特藏资源的共享和数据交换。究其原因,主要是国内尚未形成特藏资源组织和著录的统一标准。文章在调研国内外特藏资源层级著录相关研究和实践的基础上,从著录标准的角度探讨了在图书馆特藏资源的著录中采用国际档案理事会(International Council on Archives,ICA)颁布的《国际档案著录标准(总则)》(General International Standard Archival Description,ISAD(G))作为特藏资源著录标准的可行性,同时辅以复旦大学图书馆在特藏资源著录上的实践探索以供业界参考。展开更多
The challenges brought by broadband wireless access technologies to cellular mobile communication technologies speed up the study and standardization of 3G evolution technologies that support higher data rates. Both t...The challenges brought by broadband wireless access technologies to cellular mobile communication technologies speed up the study and standardization of 3G evolution technologies that support higher data rates. Both the 3GPP and the 3GPP2 have launched research programs on the study and standardization of the emerging 3G evolution technologies. The Long Term Evolution (LTE) program of 3GPP has made progress in key technical indexes of air interface, wireless network architecture and high-level protocols. At the same time, the Air Interface Evolution (AIE) program of 3GPP2 has made study achievements in the formulation of air interface standards for Layer 2 and upper layers, as well as for the physical layer.展开更多
The topological index F* is defined and obtained by the method of a non-dimensional unit calculation in which three matrices multiply with each other. These matrices represent the connective cases of atoms in a molecu...The topological index F* is defined and obtained by the method of a non-dimensional unit calculation in which three matrices multiply with each other. These matrices represent the connective cases of atoms in a molecule, the structural features of atoms on top and the bonded cases of the adjacent atoms respectively. The standard formation enthalpies of ABn(g) molecules were correlated with F’* (A = C, Al, Si, Ti, Zr, B = F, Cl, Br, I, H, n=1 -4) and these correlation coefficients are all more than 0.96. Some molecules (e.g CH4, SiH4,etc. )can be preferably handled by F* but can not be dealt with by other topological indices. By contrast to traditional hydrogen suppressed graph, the contribution of hydrogen atoms to structures and properties of molecules is considered.展开更多
A recent experimental finding replicated an earlier research result, both of which demonstrated conflict with a specific Standard Model prediction. The “Muon g - 2” studies have indicated that the degree of muon pre...A recent experimental finding replicated an earlier research result, both of which demonstrated conflict with a specific Standard Model prediction. The “Muon g - 2” studies have indicated that the degree of muon precession predicted by the Model is not the same as observed. The researchers offer many posteriori atheoretical hypotheses as possible explanations of their findings, but no fundamental theoretical understanding of the near discovery is among them. This article describes both an explication for the unexpected result and describes its underlying mechanism based on an existing cosmological theory, the Probabilistic Spacetime Theory. The paper also discusses the potential value of this theory.展开更多
文摘Only ZTE can deliver end-to-end equipment for all 3G standards-WCDMA, CDMA2000, TD-SCDMA and WiMAX. Our WCDMA solutions are used in 30 countries and regions,
文摘Only ZTE can deliver end-to-end equipment for all 3G standards-WCDMA, CDMA2000, TD-SCDMA and WiMAX. Our WCDMA solutions are used in 30 countries and regions, and our CDMA systems are used by 120 operators in more than 70 countries.
文摘From the discussion above, the 3G choice of China is difficult to makerapidly because of multiple complicated factors. Either delay or impulsion will be costly. So theChinese government regulators need intensive and careful study on key factors before making a rightdecision. But the following policy trends can be inferred: (1)The regulator will not use the auctionlike Europe to issue 3G licenses; (2)Three 3G standards will co-exist in China mobile market withmultiple 3G services competition; (3)The 3G licenses schedule of China will inevitably be associatedwith the market demand and standard mature.
文摘特藏资源往往是由数量众多、类型多样的文献所组成,对特藏资源的组织和著录不仅需要对构成特藏的每一种单一文献进行描述,更需要对特藏的整体及文献间的关系进行揭示。国内存在仍然以单种/册文献为著录对象、缺少对资源间层级关系的揭示、著录未遵循统一标准等问题,严重影响到特藏资源的使用,也影响到特藏资源的共享和数据交换。究其原因,主要是国内尚未形成特藏资源组织和著录的统一标准。文章在调研国内外特藏资源层级著录相关研究和实践的基础上,从著录标准的角度探讨了在图书馆特藏资源的著录中采用国际档案理事会(International Council on Archives,ICA)颁布的《国际档案著录标准(总则)》(General International Standard Archival Description,ISAD(G))作为特藏资源著录标准的可行性,同时辅以复旦大学图书馆在特藏资源著录上的实践探索以供业界参考。
基金National "863"Program of China (No. 2005AA123410)
文摘The challenges brought by broadband wireless access technologies to cellular mobile communication technologies speed up the study and standardization of 3G evolution technologies that support higher data rates. Both the 3GPP and the 3GPP2 have launched research programs on the study and standardization of the emerging 3G evolution technologies. The Long Term Evolution (LTE) program of 3GPP has made progress in key technical indexes of air interface, wireless network architecture and high-level protocols. At the same time, the Air Interface Evolution (AIE) program of 3GPP2 has made study achievements in the formulation of air interface standards for Layer 2 and upper layers, as well as for the physical layer.
基金Funded by the Nature Science Foundation of China (No. 29773033)
文摘The topological index F* is defined and obtained by the method of a non-dimensional unit calculation in which three matrices multiply with each other. These matrices represent the connective cases of atoms in a molecule, the structural features of atoms on top and the bonded cases of the adjacent atoms respectively. The standard formation enthalpies of ABn(g) molecules were correlated with F’* (A = C, Al, Si, Ti, Zr, B = F, Cl, Br, I, H, n=1 -4) and these correlation coefficients are all more than 0.96. Some molecules (e.g CH4, SiH4,etc. )can be preferably handled by F* but can not be dealt with by other topological indices. By contrast to traditional hydrogen suppressed graph, the contribution of hydrogen atoms to structures and properties of molecules is considered.
文摘A recent experimental finding replicated an earlier research result, both of which demonstrated conflict with a specific Standard Model prediction. The “Muon g - 2” studies have indicated that the degree of muon precession predicted by the Model is not the same as observed. The researchers offer many posteriori atheoretical hypotheses as possible explanations of their findings, but no fundamental theoretical understanding of the near discovery is among them. This article describes both an explication for the unexpected result and describes its underlying mechanism based on an existing cosmological theory, the Probabilistic Spacetime Theory. The paper also discusses the potential value of this theory.
