字件和标符探究

汉字学研究需要建立"字件"、"标符"等科学规范的专门术语。部件是指对今汉字的外部结构进行平面分析的构形单位;字件是对今汉字的外部结构进行层次分析的直接构形单位。标符是字符的一种,它与整字的意义和读音都没有联系,迄今汉字学界绝大部分学者称之为"记号"。汉字学中的记号不仅指今汉字体系符号,也可以指汉字的结构单位,两者容易混淆。标符比记号更科学,它与音符、意符相一致,实现了术语名称的规范统一。

超大直径过江盾构隧道口字件不同连接型式地震响应特征研究

随着隧道设计施工技术的快速发展,水下超大直径盾构隧道在跨越江河中日益频繁。口字件在大直径公路盾构隧道断面结构采用较多,其具有施工速度快、充分利用断面空间资源等优点,一般采用预制装配式结构,与隧道管片的连接一般采用铰接或者刚接方式,在地震荷载作用下,口字件的不同连接方式对隧道断面结构的地震内力响应不同,为了对超大直径过江隧道盾构段的抗震设计提供可靠的依据,利用ABAQUS有限元分析计算软件,考虑50 a超越概率2%地震波加速度时程曲线(重现期2475年),选取了4个代表性断面,采用时程分析法对盾构段隧道口字件部位在刚接与铰接的情况下的地震响应特征进行了计算对比研究。结果表明:在铰接的情况下,口字件部位截面的最大轴力有所减小或保持不变;当埋深较浅时,最大剪力略有减小,当埋深较深时,口字件部位最大剪力有所增大;采用铰接的情况下,最大弯矩均有所减小或保持不变,铰接部位的弯矩有显著减小,口字件部位最大变形有所减小或保持不变;从隧道抗震的角度来讲,口字件部位采用铰接的方式要优于刚接;在铰接的情况下,口字件部位轴力最大值向非铰接侧偏移,弯矩与变形的最大值向底板部位偏移,在隧道抗震设计中应对以上部位进行重点关注。

True Type Collection字体的析构——True Type文件(ttf/ttc)格式转换

从ttf和ttc两种文件格式的关系出发,对ttc文件格式进行了研究。讲述了truetyqe字体的文件格式和数据结构,分析了truetypecollection字体文件的格式说明和ttc与tuf字体的关系,并设计实现了ttf和ttc文件格式的相互转换程序。

网上语音数据传输的Delphi实现技术

介绍并分析语音数据在网上的传递技术和应用 ,主要介绍用Delphi在网上开发语音传输程序的关键技术和技巧 。

Internet上的语音传输技术探讨

介绍并分析在Internet上传输语音数据的技术,主要介绍语音压缩的原理和其控件应用技术及用Delphi在网上开发语音传输程序的关键技术和技巧,并给出一程序实现的例程。

VOLUMETRIC-SWEPT DISPLAY SYSTEM BASED ON HELIX ROTATING SCREEN AND DMD

Based on the helix rotating screen and the digital micro-mirror device （DMD）, the former proto of volumetric-swept display system is improved. The 3-D display system adopting a helix rotating screen to construct an imaging space meliorate the defects, such as the smaller image space, the fewer voxels and the severer voxel overlap dead zone caused by planar rotating screen. DMD with spatial light modular （SLM） technology increases the transmission bandwidth of 3-D data in the voxel activation subsystem and activate multi-voxel once time. The volumetric-swept system based on helix rotating screen and DMD is developed. The experimental results show that the image space, the vision dead zone, the voxels on slice, and the voxel activation capacity of the designed proto are superior to the plane rotating screen system.

硅酸钙板面板保温装饰一体板外保温系统锚固性能研究

保温装饰一体板是在工厂复合而成的具有保温和装饰功能的建筑外墙用板状制品,由于其单位面积质量相对较大,并且在应用中相对薄抹灰保温系统其连续性较弱,所以在保证粘结的同时,应更多注重锚固性能。目前一体板面板大多使用硅酸钙板,此种面板的锚固形式基本分为蝴蝶件锚固和干字件锚固,为配合使用此种锚固工艺,需要在硅酸钙板面板上预制锚固构造,锚固构造的槽体规格对锚固性能有较大影响,通过对各种锚固构造规格尺寸的对比试验得出其对锚固性能的影响关系,同时对蝴蝶件和干字件两种锚固形式的锚固性能进行比较和分析,有助于更深入地认识保温装饰一体板及系统,也为此类产品技术升级提供技术支撑。

Research on Software Radio Fuze

The functions and characteristics of software radio are discussed. Using techniques and method of software radio, the concept and advantages of a new kind of radio fuze, software radio fuze, are analysed. Several kinds of hardware platform structures of the software radio fuze are studied and the key techniques are analysed. The software radio fuze will become the most promising radio fuze techniques in 21st century.

Chinese multi-document personal name disambiguation

This paper presents a new approach to determining whether an interested personal name across doeuments refers to the same entity. Firstly,three vectors for each text are formed： the personal name Boolean vectors denoting whether a personal name occurs the text the biographical word Boolean vector representing title, occupation and so forth, and the feature vector with real values. Then, by combining a heuristic strategy based on Boolean vectors with an agglomeratie clustering algorithm based on feature vectors, it seeks to resolve multi-document personal name coreference. Experimental results show that this approach achieves a good performance by testing on ＂Wang Gang＂ corpus.

Software Radio: A Review of Design Considerations and Digital Hardware Choices

This paper reviews the requirements for Software Defi ned Radio (SDR) systems for high-speed wireless applications and compares how well the different technology choices available-from ASICs, FPGAs to digital signal processors (DSPs) and general purpose processors (GPPs) - meet them.

Dynamic Response Analysis of Towed Cable During Deployment/Retrieval

A numerical approach was developed to analyze the transient behavior of towed cable during ac- tively controlled deployment/retrieval (DR).The cable motion is described by the lumped parameter method, its corresponding boundary conditions are presented.In view of its varying length during DR,two auxiliary arguments are introduced to describe its continuous varying length and discrete number of nodes(equations), the length is determined by the pay out(or reel-in) rate,which is then used to determine the node number by a logic relation.For the discrete mathematical model of towed cable,an algorithm was developed to deal with the discrete governing equations.The simulation results indicate that the cable experiences more com- plex motions due to its varying length,and tension fluctuates seriously in the startup and ending stage of deployment/retrieval.The effect of towing ship's motion in waves on cable during deployment/retrieval is also considered via numerical simulation.

Research on characters of surrounding rock in complex geology conditions and supporting time

The methods combined by test, field monitoring and theoretical analysis were adopted to do the systemic research on the rock mass from micro-structure to macro-deformation, and rheological model of Jinchuan rock mass was established to discuss the reasonable supporting time. Resuhs show that supporting after suitable stress and displacement release can benefit for the long-term stability of surrounding rock.

An Effective Long String Searching Algorithm towards Component Security Testing

In the execution of method invocation sequences to test component security,abnormal or normal information is generated and recorded in a monitor log. By searching abnormal information from monitor log,the exceptions that the component has can be determined. To facilitate the searching process,string searching methods could be employed. However,current approaches are not effective enough to search long pattern string. In order to mine the specific information with less number of matches,we proposed an improved Sunday string searching algorithm in this paper. Unlike Sunday algorithm which does not make use of the already matched characters,the proposed approach presents two ideas — utilizing and recycling these characters. We take advantage of all matched characters in main string,if they are still in the matchable interval compared with pattern string,to increase the distance that pattern string moves backwards. Experimental analysis shows that,compared to Sunday algorithm,our method could greatly reduce the matching times,if the scale of character set constituting both main string and pattern string is small,or if the length of pattern string is long. Also,the proposed approach can improve the search effectiveness for abnormal information in component security testing.

A smartcard conditional access interface scheme for conditional access subsystem separation in digital TV broadcasting

Conditional access system (CAS) is a key technical component in digital TV broadcasting through which TV op-erators manage the appropriate rights of different subscribers in order to protect their commercial benefits. The normal digital TV receiver can only receive and decode the pay TV programs scrambled by one specific CAS. In this paper, the authors proposed a smartcard conditional access interface (SCAI) scheme in order to make the digital TV receiver be a common receiving platform independent of any specific CAS employed at the broadcasting head-end. As a result, it only needs to include a common condi-tional access software package (CCAP) without any requirement of hardware modification in the receiver. Comparison between the two mentioned DVB-CI-based schemes showed that the cost of such kind receiver is greatly reduced. The main design points of the proposed scheme and its reference implementation’s architecture are presented in this paper. This scheme is also one of the candidate national standards for Chinese digital TV broadcasting industry.

Discussion research of digital construction of mine

Analyzed and compared with some digitizeed mine build state first.Secondly analyzed opportunity and challenge that the Chinese mine faces,and pointed out certainty and necessity of building digitization of mine,Summarized the present task that charac- teristic,DM,MGIS of the digital mine develop and construct and employ finally,and carry on the summary to structure and function of the component mine integrated information system.

Urban Boundary-Layer Stability and Turbulent Exchange during Consecutive Episodes of Particle Air Pollution in Beijing,China

Based on measurements at the Beijing 325-m Meteorological Tower,this study reports an analysis of atmospheric stability conditions and turbulent exchange during consecutive episodes of particle air pollution in Beijing(China),primarily due to haze and dust events(15–30 April 2012).Of particular interest were relevant vertical variations within the lower urban boundary layer(UBL).First,the haze and dust events were characterized by different atmospheric conditions,as quite low wind speed and high humidity are typically observed during haze events.In addition,for the description of stability conditions,the bulk Richardson number(RiB) was calculated for three different height intervals: 8–47,47–140,and 140–280 m.The values of RiB indicated an apparent increase in the occurrence frequency of stably-stratified air layers in the upper height interval—for the 140–280-m height interval,positive values of RiB occurred for about 85% of the time.The downward turbulent exchange of sensible heat was observed at 280 m for the full diurnal cycle,which,by contrast,was rarely seen at 140 m during daytime.These results reinforce the importance of implementing high-resolution UBL profile observations and addressing issues related to stably-stratified flows.

Single Production of Top Quark via e^-γ Collision in Left-Right Twin Higgs Model

In the context of the left-right twin Higgs （LRTH） model, we fist study single production of the standard model （SM） top quark via e-γ collisions. We find that the corrections of the LRTH model to the cross section of the process e-γ→vebt might be observed only for f ≤750 GeV and the heavy top quark mass scale M ≥500 GeV in future high energy linear e^＋e^- collider （LC） experiment with the center-of-mass （CM） energy √s = 500 GeV and a yearly integrated luminosity of ￡ = 100 fb^-1. We also consider single production of the heavy top quark T via e-γ collisions. Our numerical results show that the possible signals of the heavy top quark T might be observed via the decay channel T →Ф^＋b→tbb in future LC experiment with √s = 3 TeV and ￡ = 500 fb^-1.

Applying Periodic Boundary Conditions to Predict Open Water Propeller Performance

Mathematical models of propellers were created that investigate the influence of periodic boundary conditions on predictions of a propeller's performance.Thrust and torque coefficients corresponding to different advance coefficients of DTMB 4119, 4382, and 4384 propellers were calculated.The pressure coefficient distribution of the DTMB 4119 propeller at different sections was also physically tested.Comparisons indicated good agreement between the results of experiments and the simulation.It showed that the periodic boundary condition can be used to rationally predict the open water performance of a propeller.By analyzing the three established modes for the computation, it was shown that using the spline curve method to divide the grids can meet the calculation's demands for precision better than using the rake cutting method.

Search for New Three-, Four-Component Petasis, Passerini, Hantzsch, Kabachnic-Fields, Ugi Reactions with Organic Compounds of Phosphorus, Arsenic, Antimony and Bismuth

It is discovered a new three-, four-component Petasis, Passerini, Hantzsch, Kabachnic-Fields, Ugi reactions with of arsine, stibine and bismuthine in organometallic chemistry. Modifications were replaced to a nitrogen atom of classical reactions of atoms of phosphorus, arsenic, antimony and bismuth. It has been proposed a new mechanism for possible reactions.

Chemistry, Theater, Information and Communications Technology

Theater play that shows how textiles, make up, hair dyes and music players has changed along the last six decades, especially due to polymers. It is a play that has a historic, chemical and musical side that introduces the use of ICT （information and communications technology）, such as Faeebook, Moodle platform, Web sites, E-mail, Word, Publisher, PowerPoint, Videos and Digital music. Results in the conduct of the students that participated： assertiveness, self-esteem, tolerance, cooperation, responsibility and teamwork, all of them significantly contributed a meaningful learning about the polymers.