计算全息在三维立体显示中的应用

计算全息可以实现真正意义上的三维立体显示,文中简述了计算全息的原理及制作方法,并通过实验演示了计算全息在三维立体显示中的应用,说明通过计算全息实现三维立体显示是切实可行的。     

论科学的全息性

本文运用“宇宙全息统一论”的原理探索了科学的全息性,提出和阐述了科学对象的全息性、全息科学方法、科学全息体、科学全息元、科学全息重演律、科学全息场、科学全息衍生律等范畴和規律.最后,用它们解释了当代科学中的一些全息现象。     

期刊全息律浅析

认为期刊重演律，全息同步进化律，全息脉动律，全息同构律，全息感应律，全息整体律等构成期刊全息律。这是宇宙全息律在期刊系统的特化。     

全息显示技术发展及现状

本文叙述了光全息术的原理及其发展过程,同时就其在生产领域发展较为成熟的全息干涉计量、全息存贮,显示全息和模压全息等产业的现状及其未来发展作了详细的概述。     

激光全息存储技术的发展

本文在概述了激光全息照像技术的基础上,进而介绍了激光全息存储技术的发展,说明激光全息存储技术正向数字化方向发展。     

全息情报学的逻辑起点

全息情报学是运用全息论的理论和方法来研究情报系统的全息现象、统一规律及其本质和机制的科学。但这一学科才刚刚起步,有很多问题需要深入研究,在此介绍了全息论,探讨了全息情报学的逻辑起点问题。     

全息图像之谜

尽管我们对"全息"已经耳熟能详,但是"全息"对于我们来说还是很神秘:全息图像与普通图像有什么区别?"全息"图像是如何形成的?为什么残存的一角全息照片还能够呈现完整的图像?……这些问题,我们很希望了解。     

全息电视技术研究发展综述

全息电视是一种全新的电视形式,它带给人的是一种与传统电视完全不同的视听感受。近年来,世界各国对全息电视技术的研究取得了很大的成果。本文简单介绍了最近几年全息电视技术的新进展以及面临的技术难点,并对将来全息电视的发展研究进行了展望,在不久的将来实用的全息电视系统一定会实现。     

中医理论的全息观

全息理论受中医理论的启发而产生,并迅速地被引用到各个领域而得到不同程度的应用和发展。如果再把全息理论应用于对中医理论的研究,这将对中医理论的认识产生质的飞跃,同时将为中医现代化研究提供一个全新的方法论。     

元极学中全息概念辨析

从现代科学对全息概念的定义方面研究了元极学中全息性术语,比较了两者之异同,以此理解元极学的理论,如天地万物同三元。在本性元音层次上指宇宙中任何一点都包含宇宙整体的全部信息,在性命层次上指天地万物在不同层次不同方面表现出的同构（相关）现象。     

Effect of oral ingestion of different forms of silver on tissue content of some essential elements in chicks

Silver is ingested in India in the form of varak, Ayurvedic bhasm and water contained in silver utensils, but nobody knows their effects. We have examined the effect of interaction of silver ingested in the form of varak (leaf), bhasm (ash) and water (colloidal solution) on some essential elements (Na, K, Ca, Mg, Cu, Fe and Zn) in blood, liver, spleen and kidneys of chicks. The results showed significant rise of silver in all the tissues and significant fall in copper in the blood. The greatest rise was obtained in blood silver by silver sol while it had the lowest amount of silver. Iron significantly increased in tissues but somewhat decreased in blood. Zinc content increased in all the tissues by leaf and ash but decreased by sol. No consistent pattern was seen in case of other elements.     

中国华东及其周边地区NDVI对气温和降水的季节响应

地表植被与大气的相互作用过程是地球科学领域的研究重点和热点。本文基于SPOTVGT-NDVI数据和气象站点的气温和降水资料,采用时滞相关分析法,研究了1998年-2011年我国华东及其周边地区四季NDVI对气温和降水的时空响应特征。结果表明,在整个研究区,气温对NDVI的影响大于降水,NDVI与气温在夏季和秋季相关性较高,与降水在秋季和春季相关性较高,冬季NDVI与气温和降水相关性都最低。NDVI对气温响应的滞后期在春季和秋季较短,对降水响应的滞后期在冬季较短,夏季NDVI对气温和降水响应的滞后期都较长。在冬季、春季和秋季,NDVI对气温和降水最大相关系数的空间分布在研究区的南北部差异不明显,在夏季则具有较明显的南北差异。NDVI对气温变化响应的滞后期在春季、夏季和秋季具有较明显的南北差异,对降水变化响应的滞后期除在夏季具有一定的南北差异外,在其他季节空间分布规律性不显著。     

Unintended consequences on gender diversity of high-tech growth and labor market polarization

There has been considerable media coverage highlighting the lack of gender diversity in Silicon Valley, stressing the relatively low participation of women in the high-tech economy. Austin offers a unique case for testing whether similar gender issues characterized other high-tech regions because the city has historically benefited from the expansion of Silicon Valley’s large high-tech firms since the 1980s. The gender-biased business practices identified in Silicon Valley firms may have been transferred to their branch plants in Austin. Our analysis shows women’s losses in middle-skill occupation employment shares were concentrated in the low-tech industry and were partially offset by job share gains in high-skill occupations in the same sector between 1980 and 2015. Men’s losses in middle-skill occupation job share were also mainly concentrated in the low-tech sector but were partially offset by employment share gains in high-skill occupations only in the high-tech industry during this period. Women made large gains in relative real median wages only in high-skill occupations in the high-tech industry while their relative real median wages in other skill occupations and in the low-tech industry stagnated around zero during this period. Men’s gains in relative median wages were also concentrated only in the high-tech industry but were less than half of women’s and were negative (between ?10 and ?21 percent) in other occupations in the high-tech industry and across all occupations in the low-tech industry. As noted in previous studies, the impact of job polarization is not well understood across sectors and gender. This study finds the high-tech industry in Austin has had unintended consequences in terms of job polarization across gender, providing relatively fewer job opportunities in high-skill occupations to women than men but offering much higher gains in relative real median wages to women than men. Males also found relatively more job opportunities in high-skill occupations in the high-tech industry than women but experienced only half of women’s gains in relative median wages in this industry between 1980 and 2015.     

Demand drops and innovation investments: Evidence from the Great Recession in Spain

The Great Recession, which began in 2008, brought about large contractions in aggregate consumption in many countries. In this research, we study the impact of heterogeneous decreases in demand on innovation investments by analyzing the evolution of innovation investments in a panel of Spanish manufacturing firms during the 2004–2013 period. We proxy heterogeneous variation in demand with net exit rates in the productive stratum of each firm, defined as the group of firms in the same industry and size class. These net exit rates are computed considering all firms in the stratum, including firms that are determined to be non-innovative firms. To support the identification strategy, we show that exit rates do not capture idiosyncratic unobservable characteristics among innovative firms. In addition, we control for the effect of time-varying credit constraints. We find that a one standard deviation increase in exit rates is associated with reductions of 1.5% in the share of firms investing in innovation. The drop is larger for smaller firms, which also experience greater decreases in sales. Since smaller firms are most sensitive to demand drops, they are the natural candidates to be the target of policies devoted to increasing R&D activities during crises. As additional analysis, we study firms’ perceptions of the main obstacles to innovation to find that net exit rates capture the heterogeneous variation in demand, rather than credit constraints. Finally, when analyzing the exit patterns of firms in the sample, we confirm that the net exit rate in a firm's stratum does not drive the exit of firms in our sample.     

具有安全机制的电子商务应用系统框架的研究

本文首先介绍电子商务发展中的相关技术,详细分析了电子商务过程中存在的Internet网络和商务活动安全问题。接着给出了一个在电子交易过程中实现电子商务安全的应用系统框架。最后提出了电子商务安全技术发展不足的几个方面,以及发展我国电子商务应该采取的措施。     

Reorienting the Mobile: Australasian Imaginaries

In this paper, I approach the question of mobiles in Asian countries by considering the case of Australia. I do so by way of a preliminary inquiry that seeks to explore the intersection between the emergence of mobiles in Australia with transformations in that country's sense of its relationship with Asia. First I discuss the history of the mobile phone in Australia, noting some important uses and representations that formed part of its social shaping. Second, I explore mobiles and the paradoxes of multiculturalism, and also how digital technologies became central to political culture and identity debates in Australia in the early to-mid 1990s. Third, I look at some important moments in the social shaping of text messaging, in which questions of cultural difference were decisive. Finally, I offer concluding remarks about future research on mobiles in Australia and how they are tied into Asian identities.     

完善我国企业并购的税收监管分析

针对企业并购的税收监管问题进行了研究.论文分析了我国企业并购税收监管的现状,在借鉴西方企业并购监管经验的基础上,探讨了我国实现并购税收监管的思路和建议.研究对于促进并购业务的长远发展具有现实意义.     

甘肃省能源经济系统分析与优化策略研究

能源经济系统的优化不仅是实现区域节能减排目标的重要途径,更是社会经济可持续发展的主要内容,本文以甘肃省为研究案例,基于计量经济学方法,对其经济增长与能源消耗之间的动态关系进行了定量研究;进而运用结构分解模型,对比分析了影响单位GDP能耗的主要因素。研究结果表明:甘肃省GDP与能耗总量之间存在长期的协整关系;促进甘肃省能源强度降低的主要因素是各产业能源利用效率的提高,而产业结构变动对全省能源强度降低的贡献份额较小;对能源强度降低贡献较大的为第二产业的效率份额与结构份额,而第三产业结构份额对能源强度降低的贡献为负。文章最后从产业结构优化、关键技术推进、能源结构优化三个角度提出了甘肃省能源经济系统的优化策略。     

新疆塔里木河水资源开发利用与生态保育对策

该文分析了塔里木河近50年来水资源开发利用过程中出现的生态与环境问题。研究表明,塔里木河上游三源流灌区用水量的增加是导致塔里木河干流区来水量不断减少的主要原因,而塔里木河干流下游来水量的大幅度减少,则因塔里木河干流上中游耗水量增加引起。塔里木河下游来水量的锐减,造成下游河道断流321km,尾闾湖泊干涸,地下水位下降,天然植被全面衰败,沙漠化过程加剧。为此,要坚持生态与经济、上游与下游协同发展的原则,实现流域水资源的统一管理,打破水资源发生和利用过程中的多元主体边界; 加快实施塔里木河流域的“供水、堵水和输水”工程;控制源流引水,减少干流上、中游低效耗水,确保下游基本用水,实现流域水过程的完整性和水资源的可持续利用。     

点地梅属的分子系统学、生物地理学和垫状形态的趋同进化

报道了青藏高原地区的点地梅属Androsace L.及羽叶点地梅属Pomatosace Maxim.共14种29个居群的ITS与trnL-F DNA序列各27与25条；并结合已报道相关种类的有关序列，构建了“点地梅群”的分子系统发育树。研究发现“点地梅群”的4个属为一单系类群，含有两个稳定的分支：一支全部由点地梅属的种类组成，另一支分别由羽叶点地梅属、Douglasia Lindley、Vitaliana Sesler和9种点地梅属植物组成；点地梅属裂叶组sect. Samuelia Schlechtd.的3个种与点地梅组sect. Androsace的2个种在3套序列分析中位于不同的系统位置。各分支基部的种都分布在中国东南部及青藏高原东部，分子地理标记的结果支持形态学提出该地区为“点地梅群”植物起源地的假设。从青藏高原东部地区向欧洲及其他北半球地区存在不同时期内多个进化支的多次扩散。粗略的时间估算表明该群植物可能是在第三纪的中新世以来才开始发生的。垫状种类分别在青藏高原和欧洲独立起源，而在青藏高原地区的分化要早于在欧洲的分化，在前一地区可能与青藏高原自中新世开始发生的造山运动、形成高海拔的山地有关，而在后一地区则是与第三纪末至第四纪的冰期气候反复波动有关。垫状植物在青藏高原上的大规模分布则可能较晚，与冰期结束后全新世晚期气候再次变冷有关。一些物种种内的遗传分化也可能部分反映了气候来回波动中它们在高原上的退缩和再扩张过程