丝路撷英 旅顺博物馆藏丝绸之路文物展(上)

<正>丝绸之路是从中国出发,横贯亚洲,进而连接欧洲和北非的古代陆路交通的总称。这条古道将古老的中国文化、印度文化、波斯文化、阿拉伯文化和古罗马文化连接起来,促进了东西方文化的沟通与交流。本展览中的展品以旅顺博物馆藏古     

Constant Ductility Energy Factors for the Near-Fault Pulse-Like Ground Motions

This study is focused on the constant ductility energy factors for bilinear system under the near-fault pulse-like ground motions. The variation of energy factors is studied in consideration of the earthquake magnitude, rupture distance, damping ratios, and post-yield stiffness ratios. The results indicate that the near-fault pulse-like ground motions would increase the energy dissipation of structures. The energy factors are significantly influenced by the earthquake magnitude. The damping ratios have more obvious influences on the energy factors than the post-yield stiffness ratios. A predictive model is proposed for the application of constant ductility energy factors for near-fault pulse-like ground motions.     

关于第二轮修志记述非公有制经济的思考

改革开放以来,随着非公有制经济在国民经济中的地位与作用日益重要,其内容载入志书已成必然。志书要记述好非公有制经济的内容,就必须对其内涵有相对准确的理解。在第二轮志书中根据狭义的非公有制经济概念,在特定的范围内,处理为以记述个体私营经济为主。在已出版的三级志书中,对非公有制经济的记述程度参差不齐。省级志书中,由于涉及的层次较高、地域范围较广,非公有制经济的资料较为丰富,故记述的内容也较充实。市级和县级志书中,有关非公有制经济的内容有所减少,差异亦较明显。非公有制经济的内容,宜采用在经济部类各篇章中相对集中的记述方式。     

Numerical simulation of mylonitization and structural controls on fluid flow and mineralization of the Hetai gold deposit,west Guangdong,China

The Hetai gold deposit (HGD) is a typical altered mylonite type gold mine in a ductile shear zone in western Guangdong, China. Geomechanical simulations of the HGD were carried out in this paper to examine the importance of the dilation‐driven fluid circulation in gold mineralization. The results show that three evenly‐spaced NNE shear zones of enhanced dilation are produced in the study area. The calculated principal compressive stress in the X direction in these zones ranges between ?420 and ?650 MPa, in line with estimates of ore‐forming pressure (fluid pressure). Ore forming fluid is focused into these features, as observed in the field. The calculated differential stress decreases from 275~350 to 148~225 MPa during the formation of mylonite zones. These, together with geological structural analysis and fluid pressure measurements, indicate that the mylonitization zone can provide a place of fluid focusing and a favorable environment for gold mineralization.     

论新疆民间特色工艺的现代化发展

新疆的民间工艺不仅种类繁多,而且极具地域特色。为了更好地传承民间艺术、发扬民族文化,应该多途径地将现代设计理念与民间工艺精华有效结合,从而促进其发展。     

浅谈“村村通”地面站小片网络的建立与日常维护

建立地面接收站,建成小型电视传输网,是完成“村村通”工程的有效方法之一。有线传输网一旦建立,故障在所难觅,因为网络上使用了大量的有源器件,故障率相对较高。因此日常排查与维护至关重要,这样可大大降低故障率。     

阅微草堂收藏诸老尺牍

<阅微草堂收藏诸老尺牍>二十一通,皆清大学士梁国治、朱珪、刘墉、翁方纲、钱大昕、彭元瑞、王杰、戴震、吴省兰,及清宗室固山贝子弘旰写与纪昀的信函,其后有纪树馨收藏跋."阅微草堂"为纪昀的书斋名.纪昀(1724-1805),字晓岚,一字春帆,号石云,又号观弈道人、孤石老人.世称茶星、纪河间.清雍正二年六月出生于直隶献县(今属河北省沧县).乾隆十九年(1754)中进士,选为翰林院庶吉士.     

读明清俗语辞书札记

本是笔阅读明清俗语辞书的札记,共八条。其中五条主要是以明清俗语辞书为线索加以考证并据以纠补《汉语大词典》的有关阙失,另有三条主要是词语的语源辨正。     

Cause analysis of meager salaries of Sichuan primary school teachers in the 1930s

This paper aims to investigate the phenomenon wherein primary school teachers in Sichuan received low salaries in the 1930s. Compared with other professions among either physical or nonphysical jobs, primary school teachers had lower salaries, which were often paid in arrears and deducted. The main causes were instability, mismanagement, and an unbalanced distribution of education funds. __________ Translated from the Journal of Sichuan Normal University (Social Science Edition), 2004: 2     

The Pickup Problem: Consumers' Locational Preferences in Flow Interception

This article addresses the pickup problem , wherein patrons briefly interrupt their predetermined journeys to obtain a simple good, such as fast food or a video, and then resume their journeys. This is a problem from the class known as the flow-interception location problems. Traditional flow-interception location models (FILMs) are used to select service locations such that the intercepted flows are maximized. In these traditional models, only flow quantities are considered; these models do not consider where a pickup is made in a journey. However, in the real world, consumers often wish to obtain a product or service at or near a specific location along their trips. The pickup model (PUP) proposed here considers consumers' locational preferences, providing a much broader, more realistic approach than FILM (a special case of PUP) to problems in the private and public sectors. By considering which patrons are served where, PUP transforms the FILM into a flow-interception location-allocation model, providing a fruitful garden for further research. Geographic information systems and optimization engines are integrated to investigate the PUP model in real-world transportation systems. Reported findings demonstrate that the optimal locations identified by traditional models arise solely from network flow structure, whereas the optimal locations identified by PUP result from trade-offs between network flow structure and the importance of proximity to preferred locations. One important discovery is that PUP solutions are superior to those of traditional FILMs if consumers have locational preferences. Up-to-date, real-world transportation networks provide a realistic test-bed for this and other models of the flow-interception type.