三旋理论展望

大量微观和宏观物理现象都表明基本粒子不是类点结构,但这并非是弦学说才有的特色,三旋理论利用类圈体存在三种内禀自旋的发现,会有助于对微观和宏观量子现象及场的一些难题的探索。     

人类社会发展新理论:第二次现代化理论

１９９９年,高等教育出版社出版了中国科学院何传启研究员的专著《第二次现代化》该书提出了人类社会发展新理论－第二次现代化理论,本文介绍了《第二次现代化》和第二次现代化理论,并对《第二次现代化》和《第三次浪潮》作了比较。     

广义正交信号理论及其应用

传统的正交信号用于码分多址（CDMA）通信系统时，由于多址接入时延和信道多径时延影响，信号间的正交性将不可避免地因相对时称而受到不同程度的破坏，从而严重影响通信性能，降低系统容量。作者提出的广义正交新概念，使得信号之间可以在一个区域内正交，而不是传统的单点正交，基于这一概念，可以构造出适用于准同步CDMA（QS－CDMA）通信且性能优异的广义正交扩频码本文阐述了这一广义正交新理论，给出了相应的广义正交信号设计和理论界，并讨论了在QS－CDMA通信系统中的应用。     

Quantum sidelights on The Material Theory of Induction

John Norton's The Material Theory of Induction bristles with fresh insights and provocative ideas that provide a much needed stimulus to a stodgy if not moribund field. I use quantum mechanics (QM) as a medium for exploring some of these ideas. First, I note that QM offers more predictability than Newtonian mechanics for the Norton dome and other cases where classical determinism falters. But this ability of QM to partially cure the ills of classical determinism depends on facts about the quantum Hamiltonian operator that vary from case to case, providing an illustration of Norton's theme of the importance of contingent facts for inductive reasoning. Second, I agree with Norton that Bayesianism as developed for classical probability theory does not constitute a universal inference machine, and I use QM to explain the sense in which this is so. But at the same time I defend a brand of quantum Bayesianism as providing an illuminating account of how physicists' reasoning about quantum events. Third, I argue that if the probabilities induced by quantum states are regarded as objective chances then there are strong reasons to think that fair infinite lotteries are impossible in a quantum world.     

The Early Development of the Algebraic Theory of Semigroups

In the history of mathematics, the algebraic theory of semigroups is a relative new-comer, with the theory proper developing only in the second half of the twentieth century. Before this, however, much groundwork was laid by researchers arriving at the study of semigroups from the directions of both group and ring theory. In this paper, we will trace some major strands in the early development of the algebraic theory of semigroups. We will begin with the aspects of the theory which were directly inspired by, and were analogous to, existing results for both groups and rings, before moving on to consider the first independent theorems on semigroups: theorems with no group or ring analogues. Dedicated to the memory of Professor W. Douglas Munn. This article was begun when the author was an EPSRC-funded research student at the University of York, UK, and completed at CAUL under FCT post-doctoral research grant SFRH/BPD/34698/2007.     

网络环境下的信息对抗理论与技术

信息对抗是信息安全界最近才发展起来的一个研究领域其研究内容和内容和内涵人们还比较模糊,本文的主要目的是进一步明确这些问题。首先给出了研究信息对抗的背景和意义;其次,其于作者这对一研究领域的认识给出了信息对抗的定义,阐述了信息对抗的研究内容,并指出了每项研究中所解决的关键问题。     

Lime in the Early Bleaching Industry of Britain 1633-1828: Its Prohibition and Repeal

This essay describes the background and possible reasons for legal intervention in the use of lime in the early bleaching industry and draws on the Statutes at Large and other Acts of Parliament as primary sources. The developing chemical knowledge that may have contributed to the later Acts of repeal is also considered in some detail. The earliest noted prohibition was in 1633 and the years 1823, 1825, and 1828 were important repeal dates. No related legislation later than 1828 has been found. During the period from 1633 to 1828 there were many renewals and modifications to existing laws concerning linen and hempen manufacture; several of these contained subsections regarding bleaching. The considerable number of such Acts may account for the apparent confusion shown by earlier authors on this subject. Furthermore, the various Acts passed by the Irish House of Commons over its lifetime from 1400 to 1800, with its many interruptions, were published in a limited number of editions and are consequently held by few libraries. Ireland instituted its own laws and it was only after the Act of Union in 1800 that matters were dealt with by Westminster. Indeed, earlier historians have not always appreciated that, at certain periods of the history of the United Kingdom, Ireland and Scotland (as well as England) had their own separate parliaments.     

Confirmation of the localization on human chromosome F19 of a structural gene of poliovirus receptors]

The study of permissivity for poliovirus and the study of enzymatic markers in man-mouse somatic cell hybrids presents a very positive correlation between the presence of the poliovirus receptor and the presence of a well known enzyme marker, the phosphoglucoseisomerase (GPI), localized on the human chromosome F 19.     

Confirmation of the structure of nisin and its major degradation product by FAB-MS and FAB-MS/MS

Summary FAB-MS has been applied to the analysis of a nisin complex and FAB-MS and FAB-MS/MS data from the major component used to provide confirmation of the amino sequence and positions of the sulphur-bridged rings in these highly modified peptides.     

Confirmation of the structure of nisin and its major degradation product by FAB-MS and FAB-MS/MS

FAB-MS has been applied to the analysis of a nisin complex and FAB-MS and FAB-MS/MS data from the major component used to provide confirmation of the amino sequence and positions of the sulphur-bridged rings in these highly modified peptides.     

实施逆向物流的理论基础及效应分析

随着资源的减少和环保意识的增强。逆向物流活动已越来越受到人们的关注。逆向物流的产生有其独特理论基础。同时,逆向物流活动的有效实施,将对不同的主体产生不同的效应。通过对逆向物流的理论基础及效应的具体解释和分析,有利于人们更好的认识逆向物流。