我国检索类期刊摘刊摘文量的比较研究

《全国报刊索引》摘刊量大摘文量小,而相应学科的文献期刊则相反。它们在不同程度上偏离期刊信息的实际离散特性。因此,用不同的检索类期刊研究与期刊信息离散性有关的同一课题时,难以得到相同的结果。检索类期刊摘刊摘文量的规范化以及采用科学的综合方法是更真实地反映期刊信息离散性的有效途径。

Production Efficiency of Two-Oriented Agriculture Based on Three-Stage DEA Model

Two-oriented agriculture was a complex organism coupling production,economics,society and ecology.Its development process was affected by various factors such as producers,nature,society,etc.In order to overcome measurement error of traditional data envelopment analysis caused by ignoring random,three-stage DEA model was studied to remove environmental factors and random effects.On the foundation of this model was two-oriented agriculture comprehensive production efficiency of 14 cities were estimated in Hunan Province in 2008,and brown forth corresponding policy proposals to promote agricultural development.

Study on PEG6000 Treatment on Budding Percentage And Germination Rate of Allium Tuberosum Roxb.Seeds

Allium tuberosum Roxb is very popular for its function of stomach-strengthening,spirit-freshening,yang-warming and kidney essencereplenishing,however,its seeds appear to low bud,irregular sapling and other side effects,which result in low yield and poor quality.This paper analyzed effects of PEG6000 concentration on budding percentage in detail.It comes to conclusions that budding percentage of No.1 seed increases from 71% to 92% on the basis of 36 h treatment by 20% PEG6000 and 24 h water-drying,that of No.3 seed ranges from 30.4% to 53.4% on the basis of the same treatment by 10% PEG6000.

Multi-scaled simulation of latticed frames considering bending collapse of pipes

To consider the bending collapse of the pipes in the latticed frames, based on the multi-scale simulation, the collapsed parts of the pipe are meshed by the shell elements as micro-scaled models, and the other parts are meshed by beam elements macro-models. The incremental displacement constraint equations for the nodes on the section between the two models are established based on the plane section premise of classical beam theory. The method to introduce the constraint equations is derived based on the Updated Largrangian method. The location of the micro-model is predicted by the stress field of the beam element, and the length of the collapsed part is adjusted by the plastic energy in the micro model. Several examples are included to illustrate the efficiency and accuracy of this method.

From Droplets and Particles to Hierarchical Spatial Organization： Nanotechnology Challenges for Microfluidics

The compartimentation of fluids in the microliter, nanoliter and picoliter range leads recently to many applications of microfluidics in material development, diagnostics and biological screenings. Droplet-based microfluidics allows the improvement of nanoparticle homogeneity and the tuning of particle properties. It supports combinatorial synthesis of inorganic as well as organic substances and can be applied for the cultivation and screening of bacteria, eucaryotic cells and fish embryos. The well-ordered handling and the addressing of microfluid segments improves the information transfer between chemical, biological and electronic systems. Despite this remarkable technical progress, there is a particular importance of microfluidics for future nanotechnological solutions. The hierarchical spatial organization of liquids, particles and gels in microfluidics represents a fundamental biomimetic principle which overcomes the limits of planar technology and opens the gate for realizing complex structured threedimensional nanoarchitectures. Recent applications of microstructured fluids in chemistry and biology and concepts for future developments will be discussed.

Problems and Strategies in Cultivating English Major Students＇ Vocational Ability in Ethnic Regions

The cultivation of English major students＇ vocational ability is the key to the improvement of graduates＇ quality, the enhancement employment and shortening the entry cycle. However, due to the improper curriculum, lack of the micro-standard skill teaching lab and the formalistic teaching practice, there are many problems in English major students＇ vocational ability in ethnic regions. For instance, their language knowledge and ability is not solid; they lack the modem foreign language teaching theories; they have a weak pragmatic competence and lack teaching reflection, etc.. In practical teaching, it is proved that the following ways are effective to solve these problems optimizing the curriculum, strengthening language teaching and skill training and improving the quality of teaching practice and teaching reflection

Different Communication Styles Cultural Matters

In the paper the author tries to analyze the cultural differences behind the different communication styles between the Chinese students and the Saudi ones who study in the United States. The author thinks that the different religions make the big difference.

On construction waste disposal in Chongqing

With rapid development of the construction industry in China, lots of construction materials are being widely reused. Meanwhile, more and more materials for building remover or demolition enter into the environment as a result. However, China is facing big building garbage pollution, with simple disposal methods and low efficiency, which urgently needs to be improved. The paper takes Chongqing as an example to illustrate existing problems in this field and then puts forward corresponding countermeasures from the aspects of economy, technology, management and policy, aiming at enhancing the level of construction waste disposal in China.

Effects of surface modification by Ni, Ti and B on electrochemical properties of Mg_(1.8)Cu_(0.2)Ni hydrogen storage alloy

Amorphous alloy Mg1.8Cu0.2Ni was successfully prepared by mechanical alloying （MA） and a series of （n-x）Ni- x（Ti＋B） composites were synthesized by MA. The electrochemical properties of Mgl.8Cu0.2Ni coated by Ni, Ti and B were studied by cyclic charge-discharge, linear polarization curve, and hydrogen diffusion coefficient experiments. Experimental results indicate that Mg1.8Cu0.2Ni-[0.9Ni0.6（Ti＋B）] composite which was MA 30 h exhibited the best performance and its initial discharge capacity arrived to 714.1 mAh/g. After 30 cycles the discharge capacity was above 530 mAh/g, which was much higher than that of Mg1.8Cu0.2Ni. And after 100 cycles it holded still 442.1 mAh/g. On all accounts, after modification by Ni, Ti and B, the initial discharge capacity and high-rate discharge ability of the electrode were evidently increased. At the same time, the cycle performance was also improved significantly.

A QoS-aware scheduling algorithm for combined-input-crosspoint-queued switch

In this paper, we study the quality of service requirement and guaranteed-rate scheduling problem for combined-input-crosspoint-queued (CICQ) switches. Using crosspoint buffers between input queues and output ports, the input and output scheduling can be decoupled in CICQ switches. Here we propose a new guaranteed-rate scheduling algorithm which is divided seperately into input and output scheduling. Simulation results show that our algorithm can perform better than existing scheduling schemes in both packet loss and jitter control.

Seismic performance testing of reinforcement concrete frames strengthened with Y-eccentrically brace

Two single-storey single-span reinforcement concrete （RC） frame structures strengthened with Y-eccentrically brace were designed and manufactured to be 1/3 scale. The pseudo-dynamic testing method was used to study the mechanical characteristics and the seismic performance under E1-Centro earthquake action with different peak acceleration adjusted by China＇s Code for Seismic Design of Buildings. The test results indicate that RC frame structures strengthened with Y- eccentrically steel brace present perfect seismic performance under strong earthquake action owing to the good ductility, strong bearing capability and fine energy absorbing capability provided by energy dissipation element and high lateral stiffness provided by diagonal braces. The seismic performance is also affected by the length of outsourcing steel at the joint between energy dissipation element of eccentric steel brace and RC frame beam. The joint should be considerably designed to make sure that shear failure can firstly occur in energy dissipation element.

Reducing sugars production from pretreated rapeseed straw

Lignocellulosic biomass, being treated only with ammonia, treated with ammonia and then autoclaved, and treated with white-rot fungi after being mechanically chipped, were carried out to access the effects of lignocellulose degradation by white-rot fimgi cultured on rapeseed straw. Fourier transform infrared spectroscopic analysis was used to show that the white-rot fungus Bjerkandera sp. strain increase the susceptibility of straw to enzymatic saccharification by modifying the lignin component, revealing the effect of these pretreatments on enzymatic saccharification. Reducing sugar production from straws pretreated by ammonia/mechanical chipping/fungi degradation was 29.80% higher than the samples treated with ammonia/autoclaving, indicating an effective degradation of phenolic compounds. After ammonia pretreatment 41% of the straw was converted to RS （reducing sugars） （glucose 50%）. After 5 weeks pretreatment with the white-rot fungus, 54.8% of rapeseed straw was further converted to RS, 74% of which was glucose; while only 12% of the control straw was converted （glucose 42%）. The white-rot fungus Bjerkandera sp. strain degraded rapeseed straw preferentially at the early stage （before 20 d）, and the degradation selectivity was 0.181 1 （cellulose）, 0.364 1 （hemicellulose）, and 0.454 8 （lignin）, suggesting that removal of the phenolic barriers enhanced reducing sugar yield, and the efficiency of fungal pretreatment was comparable with that after alkali treatment, resulting a higher proportion of glucose in the hydrolysates.

Translation and Meaning in the New Version of the Tshivenda Bible With Specific Reference to The Lord＇s Prayer

The Bible has been translated into many languages, including Tshivenda. Translating a text from the source language into the target language is always characterized by translational problems. The first version of the Tshivenda translated Bible was produced in 1936, whereas the new version was published in 1998. The translation of the new version of the Tshivenda Bible is based upon the new English version. However, some of the Tshivenda translation equivalents do not reflect the same meaning as those of the source language. There are many factors behind the non-equivalence of the English and Tshivencla lexical items, for example, culture and linguistic systems. The Bible contains ＂culture-bound＂ items, which present specific challenges to translation. Therefore, context becomes important in determining the meaning of the words. The aim of this paper is to highlight translation strategies used in the translation of The Lord＇s Prayer from the new English version of the Bible titled GoodNews Bible： Today＇s English Version With Deutorocanonicals/Apocrypha （1996） into Tshivenda, and the effects they have in transferring the meaning of aspects of the prayer.

Reinforcing Effect of CFRP Strand Sheets on Steel Members

The steel structure is corroded by various mechanisms, and thus its performance decreases. As a repairing method of the corroded steel member, a method in which carbon fiber sheets is bonded to the steel member with glue has been studied. In recent years, as more efficient repairing method using FRP materials, the strand sheet bonding which has high mass per unit area has been developed. The purpose of this study is to propose the repairing method for corroded steel member by using the strand sheets. In order to confirm a reinforcing effect, the tensile and flexural tests using steel plates and girders reinforced with strand sheets were performed. Test results showed effectiveness of strand sheets for the reinforcement of the steel members.

Concept of Application of Nuclear Explosive Devices in a Space-Rocket Complex to Protect the Earth against AsteroidaI-Cometary Danger

Herein an estimation is given to the efficiency of nuclear explosive devices in a space-rocket complex to withdraw Hazardous Space Objects （HS0）-asteroids and cometary nuclei from the trajectories leading to their dangerous entry to the atmosphere and falling to the Earth. A conceptual choice of parameters and schemes of application of nuclear explosive devices in impact modules of space-rocket complexes to ensure asteroidal-cometary safety was made.

Request-Refusal Strategies in Contemporary Chinese Teledramas From the Perspective of Social Power

This study was designed to explore the issue of request-refusal strategies in Chinese setting by establishing a corpus of vedio clips of contemporary Chinese teledramas on the basis of an overview of previous studies on Chinese refusal strategies. In the present study, we chose 3,970 short sequences of video clips from 35 Chinese teledramas which vividly described the Chinese people＇s life in the contemporary times. Taking the two variables of power and distance as reference points, nine situations were designed in this study. Elaborate refusal strategies were consecutively elicited in the nine situations of the 35 contemporary Chinese teledrama serials from the perspective of social power in the study.

Inelastic UV Scattering in a Floating Water Bridge

When high voltage is applied to distilled water filled into two beakers close to each other, a watery connection forms spontaneously, giving the impression of a floating water bridge [1-8]. In this work we present the first inelastic ultraviolet scattering data of such an electrohydrodynamic bridge revealing radial gradients of Stokes- and Anti-Stokes shifts and their intensity profiles. Interpretations including density and temperature changes within the bridge are discussed. The obtained data can be satisfactorily explained by the introduction of a second phase consisting of nano bubbles. Results and interpretation are discussed in relation to similar phenomena.

Space-Time as the Source of Energy That Accelerates the Universe

A cosmological model with both acceleration and deceleration is proposed, rewriting and reinterpreting Einstein＇s Field Equations, with a variable cosmological parameter A denoting energy due to space-time, which may be considered as ＂vacuum energy＂ at the ＂beginning＂ of the universe. The cosmological constant is replaced by a variable cosmological parameter, which is a measure of the energy of space-time that could be converted to energy of matter and radiation and vice versa.

The Study on the Effectiveness of Communicative Language Teaching Strategies Used in College English Classes

This paper mainly aims at determining the effectiveness of CLT （Communicative Language Teaching） used in College English classes. The study utilized the descriptive research method and was conducted in Medical University for Nationalities that offers College English classes to non-English majors strategies Youjiang . Survey questionnaire was used to assess the CLT strategies. The experimental data shows that CLT strategies are very effective in improving the students＇ language proficiency. Therefore, it is recommended that CLT approach should be used intensively and extensively in the teaching of College English in China.

Authentic Materials＇ Implication for ESP Settings

Although the emergence of the idea dates back to 1890s by Henry Sweet, many teachers involved in foreign language teaching have encouraged and discussed that using authentic materials is beneficial during the last decade However, the use of authentic materials in learning contexts such as ESP （English for Specific Purposes） has always been a matter of controversy and as Khaniya （2006） mentioned, a larger number of teachers are starting to identify the benefits of authentic materials and the options that such materials may provide for professional English teaching settings rather than traditional intensive ESL （English as a Second Language）. The present paper will presnet a short review of authentic materials while comparing them with textbook-based materials. Moreover, it will focus on the nature and quality features of authentic materials and particularly the motivating role these materials may play. Finally, the paper will present a list of authentic materials recommended in the literature for ESP as well as some guidelines for the selection and instruction of authentic reading materials in ESP courses.