Assessment of the Impact of the Qinghai-Tibet Railway on the Tourist Scenery in Tibet

This article briefly makes account of the characters of the tourist resources along the Qinghai-Tibet Railway. According to the diversity and distinctiveness of the natural landscape along the Qinghai-Tibet Railway, its scientific studying values, aesthetic values and cultural values are summaized in this text. The article analysed the main types of construction of the Qinghai-Tibet Railway which would cause impacts to the landscapes along the line： roadbed construction, grounds of fetching and abandoning soil, sand and gravel material field, pavement for constructon, construction camp, etc. The impacts caused by construction of the Qinghai-Tibet Railway to the tourist scenery in Tibet are raised and the preventive and restorative measures needed to be taken to reduce and ease up the impacts of the railway project to the landscapes long the line are offered. The various measures raised above are in line with the characters of the Qinghai-Tibet Railway and are operational.     

LA-ICP-MS dating of Zhangjiakou Formation volcanic rocks in the Zhangjiakou region and its geological significance

The geological cross section of the Zhangjiakou Formation is originally established in the Zhangjiakou region. From the dating of four samples from typical cross sections of the Zhangjiakou Formation in the Zhangjiakou region, the age range is found to be mainly from 143.0 ± 3.7 Myr to 136.1 ± 1.4 Myr, which almost equals the sum of the age range of the Zhangjiakou Formation （136-135 Myr） and that of the Tuchengzi Formation （143-136 Myr） in the Luanping region, and the Zhangjiakou and Tuchengzi Formations in Zhang- jiakou-Luanping of North Hebei are found to be conformable. The evidence above indicates that the Zhangjiakou and Tuchengzi Formations, which are distributed in Zhangjiakou-Luanping, were formed under the same geological setting. Volcanic activity was earlier and longer （143-136 Myr） in the western region （Zhangjiakou） than that in the eastern region （Luanping）. The ＂Zhangjiakou Formation＂ in Chengde and Pingquan formed in the period in which the Yixian Formation in West Liaoning formed, so should be renamed the Yixian Formation.     

Concurrent processes scheduling with scarce resources in small and medium enterprises

Scarce resources , precedence and non-determined time-lag are three constraints commonly found in small and medium manufacturing enterprises (SMEs), which are deemed to block the ap-plication of workflow management system ( WfMS ) .To tackle this problem , a workflow scheduling approach is proposed based on timing workflow net (TWF-net) and genetic algorithm (GA).The workflow is modelled in a form of TWF-net in favour of process simulation and resource conflict checking .After simplifying and reconstructing the set of workflow instance , the conflict resolution problem is transformed into a resource-constrained project scheduling problem ( RCPSP ) , which could be efficiently solved by a heuristic method , such as GA.Finally, problems of various sizes are utilized to test the performance of the proposed algorithm and to compare it with first-come-first-served ( FCFS) strategy.The evaluation demonstrates that the proposed method is an overwhelming and effective approach for scheduling the concurrent processes with precedence and resource con -straints .     

LA-ICP-MS dating of Zhangjiakou Formation volcanic rocks in the Zhangjiakou region and its geological signi?cance

The geological cross section of the Zhangjiakou Formation is originally established in the Zhangjiakou region. From the dating of four samples from typical cross sections of the Zhangjiakou Formation in the Zhangjiakou region, the age range is found to be mainly from 143.0 ± 3.7 Myr to 136.1 ± 1.4 Myr, which almost equals the sum of the age range of the Zhangjiakou Formation (136–135 Myr) and that of the Tuchengzi Formation (143–136 Myr) in the Luanping region, and the Zhangjiakou and Tuchengzi Formations in Zhangjiakou-Luanping of North Hebei are found to be conformable. The evidence above indicates that the Zhangjiakou and Tuchengzi Formations, which are distributed in Zhangjiakou-Luanping, were formed under the same geological setting. Volcanic activity was earlier and longer (143–136 Myr) in the western region (Zhangjiakou) than that in the eastern region (Luanping). The ‘‘Zhangjiakou Formation” in Chengde and Pingquan formed in the period in which the Yixian Formation in West Liaoning formed, so should be renamed the Yixian Formation.     

Experimental study on Ti+Nb bearing ultra-low carbon bake hardening sheet steel hot-rolled in the ferrite region

A Ti+Nb bearing ultra-low carbon bake hardening sheet steel hot-rolled in the conventional austenite region and in the ferrite region with lubrication was experimentally studied. Subsequent cold rolling and continuous annealing processes were also conducted. The results show that microstructures of ultra-low carbon bake hardening hot strips at room temperature are basically irregular polygonal ferrites. The yield strength, ultimate tensile strength, n value, and r value of the No.2 specimen hot-rolled in the ferrite region with lubrication are 243 MPa, 364 MPa, 0.29, and 1.74, respectively, which are similar to those of the No.1 specimen hot-roiled in the conventional austenite region. The elongation rate and bake hardening value of No.2 specimen are 51% and 49.4 MPa, respectively, which are greater than those of No. 1 specimen. The No.2 specimen hot-rolled in the ferrite region with lubrication exhibits good mechanical properties and relatively excellent baking hardening performance. Therefore, the hot rolling experiment of Ti+Nb bearing ultra-low carbon bake hardening steel in the ferrite region with lubrication is feasible and can be considered in the future industrial trial production.     

Automatic Configuration in NTP

NTP is nowadays the most widely used distributed network time protocol, which aims at synchronizing the clocks of computers in a network and keeping the accuracy and validation of the time information which is transmitted in the network. Without automatic configuration mechanism, the stability and flexibility of the synchronization network built upon NTP protocol are not satisfying. P2P‘s resource discovery mechanism is used to look for time sources in a synchronization network, and according to the network environment and node‘s quality, the synchronization network is constructed dynamically.     

An optimal resource provision policy in cloud computing based on customer profiles

Conventional resource provision algorithms focus on how to maximize resource utilization and meet a fixed constraint of response time which be written in service level agreement(SLA).Unfortunately,the expected response time is highly variable and it is usually longer than the value of SLA.So,it leads to a poor resource utilization and unnecessary servers migration.We develop a framework for customer-driven dynamic resource allocation in cloud computing.Termed CDSMS(customer-driven service manage system),and the framework’s contributions are twofold.First,it can reduce the total migration times by adjusting the value of parameters of response time dynamically according to customers’profiles.Second,it can choose a best resource provision algorithm automatically in different scenarios to improve resource utilization.Finally,we perform a serious experiment in a real cloud computing platform.Experimental results show that CDSMS provides a satisfactory solution for the prediction of expected response time and the interval period between two tasks and reduce the total resource usage cost.     

Characteristics of hydrocarbon source rocks of No.3 buried-hill region in Nanpu Sag

Based on the data of 44 samples of hydrocarbon source rocks in Nanpu No.3 buffed-hill region, the kerogen type is judged through the pyrolysis and microscopic identification. At the same time, organic matter maturity and hydrocarbon generation threshold are studied by using vitrinite reflectance, pyrolysis yield and hydrocarbon abundance. Meanwhile the hydrocarbon expulsion threshold is calculated. And the characteristics of organic hydrocarbon generation and expulsion are preliminarily revealed and evaluated. The result shows that the No.3 buffed-hill region has abundant hydrocarbon source rocks with high content of organic carbon. And the primary types of kerogen are II, and lI 2. The hydrocarbon source rocks which passed biochemistry, thermolysis and thermal cracking have developed into the mature-postmature phase of different extents. And plenty of oil and gas were expelled out. It is believed the depth of oil-generating window is 3 600 m and the depth of hydro- carbon-expulsion threshold is 4 100 m. The comprehensive analysis indicates that Nanpu No.3 burried-hill region has a certain condition to generate hydrocarbon which is very promising in oil exploration and thus can become an important exploration and development target next.     

Planning to Plan-Integrating Control Flow

In many planning situations, computation itself becomes a resource to be planned and scheduled.We model such computational resources as conventional resources which are used by control-flow actions,e.g., to direct the planning process. Control-flow actions and conventional actions are planned/scheduled in an integrated way and can interact with each other. Control-flow actions are then executed by the planning engine itself. The approach is illustrated by examples, e. g., for hierarchical planning, in which tasks that are temporally still far away impose only rough constraints on the current schedule, and control-flow tasks ensure that these tasks are refined as they approach the current time. Using the same mechanism, anytime algorithms can change appropriate search methods or parameters over time, and problems like scheduling critical time-outs for garbage collection can be made part of the planning itself.     

Drag increment due to internal waves generated by Rankine ovoid

The experimental results on drag increment caused by internal waves, which are generated by a Rankine ovoid towed horizontally at constant velocities in a two-layer stratified water (a strong pycnocline) initially at rest, are presented. The drag increment due to stratification is obtained experimentally as a function of internal Froude number Frd and Reynolds number Re. From the results, it is shown that as a function of Frd or Re, an increment in mean drag coefficient due to stratification ΔCd has both increasing and decreasing region attributable respectively to internal wave and to collapse of mixing fluids in the wakes. A most significant result shows that when Frd=0.838 there exists a maximum of ΔCd, which is equal to 0.05 in the exciting region of the strong internal wave generation.     

长泰县生态旅游资源特色和开发条件分析

通过分析长泰县旅游及其形成机制，指出生态旅游资源是长泰旅游资源的特色，特别是水域生态、森林生态、观光农业生态尤为突出。文章认为紧邻覆漳泉是开发长泰生态旅游的区位条件，领导重视是保证条件，人文景观多样是依托条件。最后提出了合理开发长泰生态旅游资源的具体措施。     

太白山气象风景旅游资源的开发利用

根据其成因提出了太白山气象风景的８种类型，探讨了开发利用太白山气象风景旅游资源的意见     

济南市旅游资源的合理开发与布局

在展示济南市丰富多彩旅游资源同时。指出目前在旅游资源开发中存在的主要问题．并提出了旅游资源今后合理开发的关键措施及规划布局设想．     

辽宁本溪国家地质公园旅游产品设计

到2007年,中国已建立了138家国家地质公园,这对保护地质遗迹,促进地方经济、文化和环境的可持续发展有着重要的历史和现实意义．本溪国家地质公园是2005年9月被国土资源部批准并于2007年6月30日开园揭牌的,但对它的对外宣传还不够到位．作为一种高品位的知识性旅游产品推向社会还需要一个过程,为了使地质公园这个特殊的旅游产品能够发挥其旅游价值并推动当地经济的发展,研究本溪国家地质公园旅游产品的设计原则与营销策略,借以推动本溪旅游业的发展．     

本溪旅游地学资源的特点及其成因分类

旅游地学研究的对象是旅游资源、旅游客源市场等的地理分布及其规律,认为区域旅游地学资源的分布受控于区域地质和地貌等条件,即地质地貌等的条件决定着该区域旅游资源的开发和利用的程度.本溪地区素有"地质摇篮""地学殿堂"之称,旅游地学资源丰富,种类齐全,区域旅游地学资源特点突出.通过本溪旅游地学资源所表现出的地层发育齐全、地域垄断性、不可再生性、历史性、文化性、观赏性、美学性、民族性等特点的分析,按照属性及成因研究本溪旅游地学资源中地质历史旅游地学资源、动植物旅游地学资源等5个类别的属性及成因,提出本溪旅游地学资源开发利用的开发对策.     

贵州百里杜鹃风景名胜区旅游业存在的问题和发展趋势

百里杜鹃风景名胜区是贵州西线旅游区的一个重要组成部分。贵州省黔西县人民政府和大方县旅游局各为其做了旅游规划。文章就风景名胜区发展旅游的资源条件、市场区位、竞争优劣势、发展趋势进行了分析和探讨。     

试论风景名胜区的本质任务及其遗产属性

目的探讨中国风景名胜区的本质任务,寻找解决风景名胜区保护问题的有效途径。方法资料调研与分析类比、归纳演绎相结合的方法。结果辨析了风景名胜区的涵义是风景资源集中的地域、风景资源的稀缺性、脆弱性及多种复合价值,使风景名胜区具有“突出的、普通的价值”,从而具有人类遗产属性。结论应将风景名胜区保护纳入遗产保护体系中来,并遵照遗产保护的基本准则,才能从根本上有效保护风景资源。     

皖南李白游踪旅游开发研究

李白在皖南留下了许多诗赋和遗迹,它们具有很高的旅游开发价值.本文分析了李白皖南游踪及其旅游开发条件,提出了李白皖南游踪旅游的开发战略、产品及客源市场定位、景点布局和旅游线路设计等构想.     

泰安市乡村旅游资源开发初探

乡村旅游是以农村地域及与农事相关的乡村风情为吸引物,吸引旅游者前往观光、游憩、体验等的旅游活动。泰安市发展乡村旅游有着良好的资源优势和市场前景,但由于缺乏政府部门的宏观指导和政策、资金支持,项目缺乏必要的论证和规划,导致盲目开发,档次不高,项目和产品开发单一、雷同,管理混乱,效益不高等问题。面对良好的发展机遇,政府有关部门要统筹规划,加大政策和资金支持力度;因地制宜,科学决策,合理开发利用当地的旅游资源;发展乡村旅游要与农村产业结构调整相结合,提升乡村旅游的档次和效益;突出特色,打造乡村旅游精品;正确处理发展与保护的关系,实现乡村旅游的可持续发展。     

哈密地方文献促进旅游事业发展的思考

图书馆蕴藏着丰富的旅游资源,是旅游部门开拓景点,充实旅游内容所依赖的支撑点之一。从几个方面探讨了哈密地方文献如何促进当地旅游事业的发展。