网络计算机前景光明

网络计算机(NC)在近两年内成为了业界的一个热点．其主要的原因是我国自主开发的芯片和Linux操作系统取得了突破，促进了网络计算机的发展。当前，在国家发改委推动基于自主知识产权芯片的网络计算机产业发展的规划的指导下，网络计算机如雨后春笋般地得到了蓬勃发展。

Unix/XENIX下的远程通讯

随着建设银行业务的发展,多用户、多任务、分时的XENIX操作系统代替单用户、单任务的DOS操作系统已势在必行。XENIX操作系统更能有产效地发挥CPU的功能,充分利用内存资源,使银行更好地为客户服务。UUCP是XENIX操作系统最简单、最重要的通讯手段。

不要把民意搞成运动

四川某市通过本地机关报搞“群众万人评政府”,一时之间“×阳纸贵”,一些基层政府单位成千上百地买入报纸,组织干部甚至家属填写评议表,以图确保自己的“绩优”结果。多家媒体称之为“民主评议被阻击”。实际上,这种“万人评议”不自该市始,也非于该市终,当下正成为一种蓬勃的“官方时尚”。一些地方的大评议风气之盛,一时之间大有一点昔日“大民主”的味道。

新加坡《联合早报》文章说中国招商形式应改变

不久前,新加坡《联合早报》发表一篇署名文章,介绍了中国招商团赴新加坡的活动情况,并提出许多弊病及改进的方法,这不论对今后继续赴新加坡还是赴其他国家的中国招商团,均有积极的参考价值。 文章题名为《中国招商形式应改变》,它透露,在过去一年多时间里,到新加坡招商的中国招商团有120多个,其中有各大省市的,也有一些为人所熟知的县和乡镇的。这些招商团究竟有何功效,文章说,既无任何机构做过正式统计。

SCO UNIX系统网络文件传输的几种办法

自从我公司三级计算机广域网建成的消息在《中国金融电脑》报导后，全国各地中保集团系统兄弟公司的技术人员纷纷来电询问网络集成与应用中的各种问题，其中网络集成办法与网上文件传输是两个最集中的问题。本文将系统阐述ＳＣＯＵＮＩＸ系统中网络文件传输的几种办法、命...

网络配置工具netconfig

在安装SCO TCP/IP RunTime for UNIX V后,如果要建立本地机与远程服务器之间的联系,就要配置一条(或几条)从本地机到服务器的链路,netconfig正是一个配置建立链路的工具。下面以两个主机通过串行线路和Modem通信为例说明netconfig的使用。

Study on the performance of the micropile-mechanically stabilized earth wall

The Micropile-Mechanically Stabilized Earth(MSE) wall, specially designed for mountain roads, is proposed to improve the MSE wall local stability, global stability and impact resistance of roadside barriers. Model tests and the corresponding numerical modeling were conducted to validate the serviceability of the Micropile-MSE wall and the reliability of the numerical method. Then, a parametric study of the stress and deformation of Micropile-MSE wall based on the backfill strength and interfacial friction angle between backfill and backslope is conducted to evaluate its performance.The test results indicate that the surcharge-induced horizontal earth pressure, base pressure and lateral displacement of the wall panel of Micropile-MSE wall decrease. The corresponding numerical results are nearly equal to the measured values. The basic failure mode of MSE wall in steep terrain is the sliding of backfill along the backslope, while A-frame style micropiles are capable of preventing the sliding trend.The maximum resultant displacement can be decreased by 6.25% to 46.9% based on different interfacial friction angles, and the displacement canbe reduced by 6% ~ 56.1% based on different backfill strengths. Furthermore, the reduction increases when the interfacial friction angle and internal friction angle of backfill decrease. In addition, the lateral displacement of wall panel, the deformation of backfill decrease and the tension strain of geogrid obviously, which guarantees the MSE wall functions and provides good conditions for mountain roads.

One-Branch Zero-IF Wireless Receiver Topology with Multiphase Local Oscillator

This paper proposes a one-branch zero-IF receiver topology, which samples the I and Q signals of the modulated RF carrier with one signal path by means of a multiphase local oscillator. The suggested one-branch re- ceiver works without matching problem, and it is also capable of cancelling out the flicker noise and DC-offset when the local oscillator is configured to the four-phase mode. The one-branch receiver saves much area and power com- pared with the traditional two-branch ones. All of the advantages above make the one-branch receiver topology a promising architectural candidate for low-power and low-cost RF CMOS receiver designs. Keywords： RF CMOS; zero-IF; flicker noise; image rejection; low-power; IQ matching

Human-centered design of Stubble-Mulch Rotocultivator for Boat Tractor

With the development of mechanization popularity in rural area, agricultural machinery product not only needs to meet the production goals, and also requires the simple operation and human-centered. Human-centered design is always, on the basis of the user＇ s requirement and usage, to think over the issues by regarding operator as the center, and to design the products by emphasizing the ease of use and understandability during design and manufacture. In this study, Stubble-Mulch Rotocultivator for Boat Tractor （SMRBT） is chosen as the design object. The coordination approach of the user, machine and environment is discussed by deeply investigating their relationship, which is an empirical study of the human-centered technology of agricultural machinery.

Seismic Design of Offshore Wind Turbine Withstands Great East Japan Earthquake and Tsunami

Japan＇s first open sea offshore wind farm, Kamisu offshore windfarm Phase l, was stricken by an earthquake of intensity 6 on the Japanese seismic scale and a five-meter-high tsunami during the Great East Japan Earthquake on March 11,2011. The wind farm resumed operation on March 14 after checks revealed no damage to the system, even though the wind farm was temporarily forced to stop due to the grid failure caused by the earthquake. Wind turbines require a precise seismic design especially in an earthquake-prone country such as Japan. Wind power Kamisu Phase 2 was built one year after the earthquake based on the experience of Kamisu Phase 1. This paper presents the seismic design of offshore wind turbines and the situation during the earthquake and tsunami.

Impacts of the Rising Opportunity Cost of Farm Labor on Agricultural Land Use Structure: Theory and Empirical Evidences

Nowadays the rising of opportunity cost of farm labor comes to the forefront of attention in China. In order to understand its impact on agricultural land-use structure, a theoretical framework of household economics is formulated drawn on Low's model. Under the theoretical framework, the impact of the rising opportunity cost of on-farm on cropping structure is deduced in theory. And then, using statistic and survey data, taking mountain area of southern Ningxia as an example, the theoretical assumes are verified. The results show that the rise of opportunity cost of farm labor leads to less diversified cropping structure.

Clusters as a Way of Penetration of International Market

The global financial and economic crisis has negatively affected all business units. Tough fight for the market position results in effort to create efficient methods to maintain company＇s competitiveness. Some of small and medium entrepreneurs have started to search the business allies. As an example of such possibility of cooperation the formation of clusters should be mention. The main intention of this paper is to demonstrate possibility for small and medium-sized enterprises （SMEs） to cooperatively penetrate new markets. Attention is focused mainly on a real export-oriented cluster. Ambition is to use costs and benefits analysis to test ability of the cluster to improve chances of companies to penetrate new markets. In order to link this analysis to real life as much as possible, existing cluster was used and on its accomplishments and failures costs and benefits of clustering are demonstrated.

Present Tectonic Stress Field in the Capital Region of China Inverted from Focal Mechanisms of Small and Strong Earthquakes

A dense seismic network was installed in the capital region of China in recent years,which makes it possible to resolve the focal mechanisms of small earthquakes. We gathered large earthquake focal mechanisms from the last fifty years and moderate or small earthquake focal mechanisms from between 2002 and 2004,and calculated the present tectonic stress field of the capital region by the grid search method, which weighs different sized earthquakes and can improve the accuracy of the stress field inversion. The analysis of inversion results of different sub-regions shows that the azinuth of the maximum principal compressive stress axis is NE43°- 86° in the Beijing-Zhangjiakou-Datong area,NE38°-86° in the Tangshan area,and NE79°- 81° in the Xingtai area. Inversion results of this paper are similar to previous results,which proves the correctness of the approach. As revealed by the results,the stress field of the capital region is characterized by overall consistency and sub-regional differences. This study provides reference for earthquake mechanism explanation and geodynamics research.

Study on the Agricultural Fuel Consumption Subsidy Policy for Wheat Straw Low Stubble——Taking the Investigation of Wheat Combine Harvester as an Example in Xushui District of Hebei Province

With the improvement of agricultural mechanization equipment levels, the mechanized wheat harvesting level has been above 80% and the rate of wheat straw returned has increased significantly in the main wheat production of wheat of northern countryside in China. Chinese government popularized the beneficial agronomic measures in the process of wheat straw returned field by mechanization. The agronomic measure was reducing the wheat straw stubble height(WSSH) not more than 20 cm.However, local government didn't apply and disseminate the measure, because in practice the cost of fuel consumption was high, and the operation time of harvesting was longer than ever. The machinery operators and farmers needed to support extra fuel cost and time if they took government's advice. In fact, the objective subsidy policy of fuel cost on reducing WSSH was not been formulated by all levels of government. Therefore, the set of agronomic measure couldn't be popularized in main wheat production area of North China. Our research addressed to master the changing feature of fuel cost and mechanical efficiency,seeking suitable subsidy standard, providing some useful and constructive suggestions to improve subsidy policy of fuel consumption cost for national government department. The study carried out the tracking experiments of the operation efficiency and fuel costs of farm harvester in the situation of different WSSH in 2010 in Xushui District of Hebei Province. In conclusion, the operation time of harvesting decline and machinery fuel consumption cost increased along with the decreasing of WSSH. First for the older harvester, the operation efficiency would decline by 18.7% when the WSSH changed from 20 cm to 10 cm, the cost would increase 4.7%, exact cost was 152.2CNY per hectare. For the new harvester, the operation efficiency would decline by 39.9% when the WSSH changed from 20 cm to 15 cm, the cost would increase 4.6%, exact cost was 368.4CNY per hectare. We provided about 375 CNY per hectare to the mechanical operators and farmer who attended this project, and they were willing to accept the subsidies. We also put forwards some policy suggestions on promoting agronomic measures of reducing WSSH including strengthen the construction of agricultural machinery service system, practise a special fuel consumption subsidies of agricultural machinery and open up new paths for combine sales and circulation.

Groundwater Management under the Kabu-ido System in Noubi Plain, Japan, 1810s-1860s

The purpose of this paper is to clarify how the Kabu-ido system can be employed to successfully regulate groundwater pumping. This was accomplished by analyzing surviving historical documents, including budgetary notes and a diary. The Kabu-ido system was a customary institution for groundwater management in a ring levee area of the Noubi Plain in Japan that consisted of three programs： restriction of groundwater pumping through a permit system, groundwater pricing and economic compensation. The system was created in the 1810s and survived for 100 years. This paper covers the Kabu-ido system from the 1810s to the 1860s, the first half of the 100-year history. Excessive groundwater pumping is not a new environmental problem. Although many case studies have investigated remedial actions, few have investigated how local residents addressed the problem before the 20th century because of a lack of documents. The Kabu-ido system is an exception in which of the procedure was documented in writing. The historical data indicate that it was a pioneering institution for groundwater management.

Analyses of Incidents of Institutional Food Service Practice Management for One Year in the Kitchen of a General Hospital, Chubu Region, Japan

This study aimed to assess the incidence of institutional food service practice management errors in the kitchen of a general hospital, Chubu region, Japan. Clarifying the cause of incidents of institutional food service operation can reduce institutional food service practice management errors. This is the first study to analyze incidents at a general hospital kitchen in Japan in English. Data were collected from incident reports over the course of one year, between October 1, 2011 and November 30, 2012. Forty two reports of incidents whose locations were the kitchen were analyzed, for example, incident dates, incident times, workloads, incident contents, incident causes, accident levels, and the presence or absence of negligence. The frequency of incidents for months, for each third of month, for day of week, for time of day, for workload levels of staff member, and for types of incidents were analyzed using chi-square test following Ryan multiple comparison. The incidents were more likely to occur at the start of the business year, during the 11：00 to 12：59 time blocks, and when staffs were busy. Breakdown of incident contents of＂foreign contamination （hair）＂ was 10 reports （24%）. To prevent incidents, new staff should also be trained to acquire skills to avoid making errors during food preparation, ensuring that there is a clear route for communicating changes in the number of hospitalized patients, and building a system that allows for changes to be made to the number of meals to be served and the content of those meals in an accurate and prompt fashion. Furthermore, work uniform should be changed promptly as such contamination can reportedly be improved by having workers wear a work cap.

A TDOA-Based Ultrasonic Absolute Localizing System of a Rail Robot in Greenhouse

In this paper,we present a method for localization of a rail autonomous pesticide spraying and sampling robot working in greenhouse using an absolute localization system.Design and implementation of the localization system comes from the usage of beacon systems each of which is composed of an RF single receiver and an ultrasonic transmitter.The RF single receiver gets the synchronization signal from the mobile robot,and the ultrasonic transmitter sends ultrasonic signal,thus the distance from the beacon to the ultrasonic receiver can be measured.The position of a beacon in coordinate system of robot can be calculated according to distance information from the beacons to two ultrasonic receivers which are mounted on the robot.Based on the coordinate transformation,the position of a mobile robot can be calculated from the beacon＇s absolute position information in the global coordinate system.Experiments demonstrate the effectiveness of the proposed method in real world applications.

Deep mine cooling, a case for Northern Ontario:Part Ⅱ

Cooling energy needs, for mines in Northern Ontario, are mainly driven by the mining cooling technologies available and the cost to implement them in a 2500 m deep underground mine. The cooling technologies reviewed herein include mechanical and natural cooling systems, ranging from mechanical chillers to seasonal thermal storages. The economic and operating parameters for each technology were estimated and evaluated according to the mine's energy loads. Including consideration of any combined heat and power benefits of the technology, cooling tower requirements, etc., the resulting cost of implementation for each technology could be ranked. This showed that the natural thermal storage systems and conventional chillers were the most cost-effective, mainly since the natural systems had very low operating cost and the chillers had relatively low capital costs.

China＇s New Nationalism and Its Obscene Core

This paper examines the recent current of nationalism in China's Mainland. It takes not only nationalist intellectual texts written by Wang Xiaodong and other ＂Say-no Club＂ members into critical scrutiny, but also nationalistic sentiments frequently appeared on the Chinese web and streets since the late 1990s. The findings of the analyses proffered by this paper are expected to enhance not only the understanding of today＇s China and Chinese nationalism as a localized and ＂embedded＂ discourse/phenomenon, but also, hopefully, that of nationalism and its generative and operational mechanism in general--nationalism is an ＂obscene discourse＂ and operates in the fantastic ground while producing real violence.

QQ小技巧六则

一、传送文件快快快假如你想给你的朋友发送文件,你可以在本地磁盘中找到要发送的文件,将其拖动到QQ中你朋友的昵称上悬停片刻,此时QQ会自动打开与你朋友的聊天窗口,并向他提交发送文件请求。