Advances in Chemical Constituents and Pharmacological Activity of Pholidota spp.

In recent years,a large number of studies have shown that the effective compounds extracted from Pholidota spp.have pharmacological activities such as anesthesia,analgesia,anti-fatigue,anti-hypoxia,anti-tumor and anti-oxidant.Because of significant activity and small side effects,Pholidota spp.have attracted much attention.In this article,the effective chemical constituents and pharmacological activity of Pholidota spp.are reviewed comprehensively in order to provide reference for the further rational development of Pholidota spp.and development of new drugs.     

Optimization and Realization for Sinter and Ore Blending for Blast Furnace

In the ironmaking process, it is essential that sinter and feed of blast furnace are established economically and reasonably. Taking some steel company for example, the best economical condition for feed of blast furnace is comprehensively considered from technologic demand and economic efficiency. According to LP and based on practice and trial, aimed function and confined condition is confirmed, computation programs are made by Matlab while realizing optimization feed. The blast furnace material balance and heat balance are calculated by program with visual interface. Thus, we can directly judge rationality of optimization. The results show that LP is effective method to realize feed of blast furnace.     

Synthetic aperture radar raw signal generation and image simulation of typical targets

Synthetic aperture radar (SAR) raw signal generation and SAR image simulation of typical targets are very significant for the validation of SAR imaging algorithms, the interpretation of SAR images, and automatic target recognition of SAR images. Based on analysis of the existing SAR raw signal generation and SAR image simulation methods, a new method for SAR raw signal generation and SAR image simulation is proposed. This method combined the curved surface pixel method (CSPM) and the two dimensional FFT (2DFFT) based SAR raw signal generation model. CSPM is used to calculate the target reflectivity, while the 2DFFT method is employed to obtain the raw signal. The simulations are carried out, and the effectiveness of this method is validated by the results of simulating some typical targets.     

Housing Credit and Insurance for Elders

As the new century approaches, the problem of aging society is confronting us. The housing market for elders is becoming a constituent of the housing market in China. It is an indisputable way that credit and insurance play roles in the process of promoting the elder's housing consumption. This paper introduces a different kind of credit-inverse mortgage, suitable for elders, and explores its characteristics and three main forms. For weak abilities of elders to resist risks, this paper also explores some insurance forms that can help elder housing consumers.     

Self-balance Principles and Formulae for Axle-linked Cable-car

Even if pulled by single wire rope, the axle-linked cable-car can under some conditions automatically balance the eccentric moment caused by the carried loads. This paper expounds the self-balance principles of the four-wheel axle-linked cable car, deduces the associated formulae and analyzes the conditions for its application, laying a theoretic foundation for the design of transverse container cable car.     

Tactics and Ways for Renovation of Old Mountain Cities and Towns

The renovation of old mountain cities and towns is a main point in city construction nowadays. In this paper, the characters of economic and real estate development are analyzed to find out proper ways and new principles for renovation from two aspects as city planning and street space renewal to solve the new problems in our present work.     

Algorithm for Symbol Timing and Carrier Phase Offset Acquisition for OQPSK Modulation

In high-rate digital mobile burst communication, it is important to acquire the symbol timing and carrier phase offset rapidly. This paper presents an algorithm of symbol timing and carrier phase offset acquisition for OQPSK. Proposed algorithm is parallel and has advantages over serial system that recover the carrier phase offset, and then estimate the symbol timing. This algorithm is easy to realize by using digital technology.     

Potential for the Adaptation and the Strategic Implementation of Local and PRC Resources for Industrialised Housing in Chongqing

The provision of quality industrialized housing in Chongqing to meet demand is perceived by the Chongqing Construction Commission to be a key feature of the local construction industry's future development. The growing strategic importance of Chongqing as a developing municipality, at the junction of the Yangtze and Jialing rivers, will ensure continuing economic development in the region. To facilitate such development the local construction industry will need to react accordingly to provide new infrastructure, commercial development, and housing and recreation facilities. Clearly, this must be achieved in accordance with a robust Master Plan, which addresses all issues associated with the built environment and other environmental considerations relating to pollution, conservation and sustainability. Throughout the World it is becoming increasingly recognized that traditional forms of construction are not sustainable in the long term and that new concepts and methods of construction must be developed. Construction must more effectively utilize and re-cycle resources that would otherwise become depleted or exhausted. Further, all aspects of the in-use performance of buildings, especially housing, must be significantly improved. The situation in Chongqing is no exception to this perception and hence the purpose of this paper is to evaluate locally available resources and relevant resources elsewhere in China to assess the potential for adaptation for effective use in industrialized housing. A broad approach will be taken covering all forms of human and non-human resources, especially those resources which can be re-cycled rather than being consigned to waste. By-products from other industries will be considered, such as those from agriculture and manufacturing. A key aspect of this paper is the articulation of a framework to facilitate the realization and development of an industrialized housing system by the creation of an integrated supply chain capable of delivering the necessary design and performance features geared to affordability, conservation and sustainability. The paper will be concludes by presentation of recommendations regarding the introduction of a development strategy geared to an incremental timetable for implementation.     

Dynamic Modeling and Analysis for a Humanoid Robot

To resolve the kinematics modeling and dynamics modeling of a humanoid robot with complicated machine, a modeling method based on the conventional mechanism combined with neural network is presented. First the kinematics formulas are deduced by analyzing its geometry structure. Second, the dynamics models are built up with Lagrange-Euler method combined with the define of interactive force among all parts of the humanoid robot. The interactive force is realized by neural network method. Finally, the true robot parameters are applied to the model. The simulation results show the validity of the modeling. So, the method is practical and available.     

Problems for Township Construction Teams and Their Countermeasures

Under the condition of urbanization, the advantages and inferior positions that existed in town and township construction teams compared with those for city construction enterprises and serious problems the town and township construction teams faced with are discussed. The authors suggest some methods to solve these problems.     

Network Structure and Its Strengthening for Fe-C-Si-Mn Alloys

Fe - C - Si - Mn alloys are used as blades in hydroelectric generators contained network structures after some heat treatments. It is found by metalograph and TEM analysis that annealed network structure is pearlite with very fine slice while the normalized is martensite or bainite. Experimental results together with theoretical analysis prove that the network structures are resulted from segregations of carbon and manganese atoms in the interdendritic areas, higher heat treatment temperature or longer soaking time can enlarge the grid size and finally eliminate the network structure. The network structure has some effects on the strength, and the smaller the grid size, the higher the strength.     

Cotton Germplasm: Resources and Tools for Characterization

Future improvement of cotton has met newchallenges that require integrated tools tocharacterize existing genetic resources.Fragmentary data and information on germplasmcharacterization need to be coordinated into anintegrated whole.The four domesticated species(G.hirsutum,G.barbadense,G.arboreum,and     

Defect and Pre-control Methods for Fair-faced Concrete Construction

At present, there is no definite quality standard for fair-faced concrete in civil engineering. Because the contractors are different in technique level and the fair-faced concrete construction is more complex than common concrete one and ease to cause defect. In this paper, the quality defect of fair-faced concrete is introduced and some pre-control methods from some aspects, including raw materials of concrete, casting, maintenance, steel bar cutting, formwork jointing treatment, defect mending, finished product protection and so on are presented.     

New Resolutions for Construction Claims and Their Disputes

FIDIC adopted a new construction claims procedure and a new disputes resolution for construction claims in its first edition of New Conditions of Contract published in 1999. The authors analyze the reasons why the FIDIC improves claims procedure and the resolution for construction claims, and describes the impartiality and efficiency of the DAB in resolving and preventing the construction claims disputes with informal procedures.     

Model Building and Simulation for Subcritical Pressure Boiler

In order to meet the demand of large scale boiler design and operating optimization, this paper establishes the dynamic mathematic model for domestic 600MW subcritical pressure boiler. MMS software is adopted in the whole process from modeling to simulation. This software make process simple and quick. This model is based on modulariza- tion and the comprehensive physical and chemical process in boiler is considered. Simulation result shows that the re- sponses of this model under different disturbance are coincident to mechanics analysis. The simulation result under ste Pdisturbance can be used to analyze unit changes and provide some guide and it also can supply performance reference data to boiler design.     

Resolvent and Application of Policy Control for QoS

With the rapid increase of the Internet user and widely application of Web,the current network technology is facing great challenge. More and more multimedia operations occupy plenty of bandwidth,and result in the network congestion. Therefore,people begin to use QoS to utilize the bandwidth effectively,and ensure the transport of the emergent operation data. The paper introduces the protocols and basic components of QoS,then expatiates the conception and the basic principles of policy control QoS, moreover,emphasizes the structure model of policy control QoS and how it runs. At last,it introduces the transport process of data packets under the control of policies in a policy control QoS system,and how to make the policies in the real world.     

Design and Development of Analysis and Forecast System for the Distribution of Car

Analysis and forecast for market have become important methods of making decision in most enterprises. It is the base of analysis and forecast to effectively store and make full use of the data in the distribution. Technology of data warehouse and OLAP provides the strong function of storing and integrating data, and mathematics methods provides a series of statistics and analysis tools. Combine IT and mathematics methods in the field of analysis and forecast for the data of distribution to put forward a design and implementation plan of application system in supporting decision based on data warehouse. The design exhibits the processes how to build data warehouse and multi-dimensional data, recommends the methods of analyzing and forecasting, and shows a good integration of advanced information technology and decision science.     

A Delay Model and Simulation Studies for None-Signaller Intersections

A model based on Queueing Theory was developed for calculating the average queueing delays and the capacities of intersections. And the turning flows influences on the delay were analysed,the simulation results were presented in the article.     

Analytical and Optimum Design Method for the Quick-Return Mechanisms

This paper proposes an analytical design method for the quick-return mechanisms such as the four-bar linkage and the offset slider crank and developes an optimum design method for those mechanisms in which the time-ratio and the minimum transmission angle are given simultaneously. Using this method,the maximum value of the time-ratio is given only. The quick-return mechanisms in which the minimum transmission angle should be the maximum can be designed easily using the proportion of the links presented in the tables in this paper.