Settlement Analysis of a Laboratory Model Test of Dewatering of a Metro Station in Shanghai

With the exploitation of urban underground spaces, deep foundation pit constructions increasingly are evaluated. Pits in soft soil areas adjacent to operating subway are especially difficult to excavate. After indoor testing of water drainage for a station on the Shanghai Metro line 9, and on the basis of treatment and analysis of water level drain hole and flux monitoring data, pore water pressure, layered settlement and surface soil settlement, we summarize the relationship between factors influencing settlement during water drainage. This research offers design experience and blueprints for water drainage and ensures the safety of metro pit construction and enclosure structure stability.     

The effect of temperature on fruit set,seed set and seed germination in ‘Sonia’ × ‘Hadley’ hybrid Tea-rose crosses

Summary The effect of temperature on fruit set, seed set and seed germination was studied in Sonia × Hadley Hybrid Tea-rose crosses. Sonia mother bushes were grown at constant temperatures (10, 14, 18, 22, 26°C) in the greenhouses of the phytotron until fruit ripening. Fruit set, fruit weight and number of seeds increased as temperature was higher. Optimum temperatures were found for days to fruit ripening (18°C), seed germination (22°C) and number of seedlings per pollinated flower (22°C). Fruit weight and number of seeds were positively correlated. For crossing and the subsequent growing of seed-bearing plants 22°C was the most favourable temperature. Effects of temperature on pollen tube growth, fertilization and seed germination are discussed.     

Performance and Method of Despread-spectrum in a Matched-filter

The archtecture and characteristic of digital matched filter circuit used for PN code synchronization are introduced and the method of PN code serial search acquition based on DMF has been researched in AWGN channel.Furthermore the detection probability and false alarm probability are derived for different correlation time(partitive period or whole period).Finally,the results of calculation and emulation are given in order to be employed as useful theoretical bases for reserching the acquisition performance of digital matched filter.     

Mathematical Model of Bile Flow in a Contracting Callbladder

On the basis of the features of contracting gallbladder and properties of gallbladder bile,the mathematical model of bile flow in a living contracting gallbladder is proposed,the velocity distribution and pressure distribution are calculated by SIMPLER method.The results show that there exist obvious S vorteices near the exit, which probably form the important conditions of cholecystolithiasis.     

Establishment of a Method for the Determination of Emodin in Wudajiangjun Liquor

[Objectives]To establish a method for the determination of emodin in Wudajiangjun liquor,a hospital preparation.[Methods]A high-performance liquid chromatography(HPLC)method for the determination of emodin in Rhizoma Polygontum Cuspidatum in hospital preparation Wudajiangjun liquor was established.Using HPLC method,octadecylsilane chemically bonded silica gel was used as filler for the chromatographic column[Inertsil-C 18 chromatographic column(5μm,4.6 mm×250 mm)].Methanol-0.1%phosphoric acid water(76∶24)was used as mobile phase.The flow rate was 1.0 mL/min,the column temperature was 30℃,the detection wavelength was 254 nm,and the injection volume was 10μL.[Results]The content of emodin in Wudajiangjun liquor was determined by reversed-phase high performance liquid chromatography(RP-HPLC).When the injection volume of emodin was in the range of 5.45-54.5μg/mL,there was a good linear relationship between the injection volume and the peak area.The regression equation is Y=42.952-15.068(r=0.9998),the average recovery rate is 98.23%,and RSD=1.45%.[Conclusions]A method for the determination of emodin in Wudajiangjun liquor by HPLC was established.This method can be used as a quality control method for Wudajiangjun liquor with high accuracy and good repeatability,which lays a foundation for the quality control of the medicinal liquor.     

A Study of Application of a New Non-Linear Load Model in LFC

A decentralized load frequency control(LFC)of power system was designedwith the help of the overlapping information methed of the large-seale system theory. The effects ofa non-linear load model to load frequency control were discussed. And got some valued reference concluson.     

Analysis on a Financing-model of Public Companies in Incomplete Market

It remains intrinsic defect how to explain reasonable financing behaviors in classical theory of capital structure. This paper gives a capital structure decision-making model with asymmetric information and exchange cost in incomplete market, and opens out mechanism of financing-selection base on adverse selection by Chinese public companies, in more we can explain well phenomena about equity over-financing of Chinese public companies.     

Research and Development of a Quality Control System in Construction

In the civil industry, quality is a key factor, so quality management and quality control play decisive roles in construction especially. At present, the main method of construction is quality controlling that engineers and technicians consult the standard and norm concerned, then check them one by one, and supervise the construction. It is not only inefficient but also easy to make mistake. Using computer technology in the quality control of construction will promote quality control level and improve management measures. Through the research of the quality control of construction,the system of quality control in construction is studied and developed, the structure of the software and its developed technology are expounded.     

Preferential Expression of a Beta-tubulin Gene in Developing Cotton Fibers

The developing cotton fiber is considered as amodel system for studying the function ofmicrotubules in plant cell elongation and cellwall biosynthesis.It has been shown thatmicrotubules undergo active dynamic changesduring fiber development.At the molecularlevel,Dixon et al demonstrated that two alpha-tubulin and two beta-tubulin isoforms     

Application of Serial Ports Simulation in a Non-communication Fault Detection Device of Distribution Networks

This paper summarizes two kinds of fault detection techniques for distribution automation, that is with and without communication in fault detection, and then analyzes their merits and shortcomings. Moreover, according to the development tendency of distribution automation techniques, this paper presents an approach, through which the noncommunication FTU devices can detect transient fault voltage of distribution systems effectually. To detect transient fault voltage without standby batteries, the PIC Single Chip microcomputer with low power consumption and DSP chip with powerful data processing capabilities are adopted to form a dual CPU system. To realize the communication between the two CPUs, the general I/O port,s of the DSP chip are firstly used to simulate the UART communication of the serial ports and communicate with the PIC Single Chip microcomputer. The novel FTU devices based on this approach are tested in static and dynamic simulation experiments, the results are satisfied.     

A Suppressed Gene in Integument Cells of a Fiberless Seed Mutant in Upland Cotton

A fiberless seed mutant(fl)was identified in acommercial cotton(Gossypium hirsutum L.)variety Xu-Zhou 142(FL).This phenotype isassociated with lack of fiber cell initiation in theouter integument of the ovule,as wascharacterized by analysis of genes related to fiber     

The Influence of Width of Flag-type Inserts on the Forced Convection of Oil in a Tube

Experimental study of forced convection heat transfer in a horizontal circulartube with ladder-shaped flag-type insert is performed to investigate the characteristics of fluid flow ,heat transfer and the influence of width of flag insert.The working fluid is 30# turbine oil.Theresult shows that the increase of W/D causes the increase of heat transfer coefficient and resistanceforce of fluid flow. The heat transfer coefficient can be enhanced mainly within the length of ninetimes of inner diameter of tube for oil.In the range of experiment, the value of creteria to evaluatethe combined effect is between 1.13 and 1.59.     

Design and Implementation of Role-based Access Control in a Teaching System

This paper discusses how to design and implement a security subsystem, which based on the Role-based Access Control technology. By taking a teaching web system as a practical example, the paper establishes an access control matrix, so dynamic menu, page jump, and data access control are loaded. The experimental shows that, the system can controls the access authorized data, and to avoid the illegality access. The practicability and robust in the system is evident.     

Pressure Distribution of LFG in a Landfill with Vertical Extraction System

In present engineering practice of landfill gas pollution control and its recovery, technical parameters such as extraction flow and radius of influence of a extraction well must be determined by field tests. A mathematical model for LFG migration under a vertical extraction well is established, which comprehensively reflects affects of several parameters including LFG generation rate, extraction flow, air permeability, buried depth of a extraction well and features of the cover layer. By using the model, pressure distribution of LFG around a vertical extraction well in a landfill can be calculated, the radius of influence of the well can also be determined.     

Study of Acquisition in a Rake Receiver Based on Digital Matched-filter

The Rake receiver based on digital matched filter(DMF) is studied extensively in order to investigate the performance of the PN code acquisition.By using the state transition diagram,the authors derive the analytic expressions of the mean acquisition time of the Rake receiver based on DMF over frequency-selective channel.Numerical analysis is also given.It is shown that the proposed Rake receiver based on DMF can accelerate the process of PN code acquisition.Because there are many resolved multipath components over frequency-selective channel,the detection probability of Rake receiver is larger than the conventional receiver.If more fingers of Rake receiver are available,then the mean acquisition time is longer and the threshold of detector can be set more widely.     

Analysis on Foundation Pit Deformation of a Commercial Building in Hangzhou

The foundation pit deformation of a commercial building in Hangzhou is calculated by using calculation method related to foundation pit deformation. The calculation results by m method show that the maximum deformation is 29.2mm and the real maximum deformation is 174.6mm. The deformation character obtained by foundation coefficient method is different from the real deformation. There are lots of factors influencing foundation deformation. According to practical engineering condition, in this study, the influencing factors for soil parameters, bracing condition, condition for insertion of retaining wall into soil and construction speed are determined. The calculation method used is analyzed and modified. Finally, a useful and valid method for calculating foundation deformation is presented, by which the foundation pit deformation in practical project can be forecasted and analyzed.     

Socio‐ecological transformations in a tributary region of the Mekong in Cambodia: Culture of resistance or resistance of culture?

This paper highlights the evolution of the relations between highlanders and lowlanders that took place in one of the Mekong's riparian eastern territories in Ratanakiri province. It contributes to knowledge and debate on the impacts of landscape transformation and dispossession on indigenous peoples and their culture in upland Cambodia. The first section considers the legacy of the past and emphasises successive attempts of resistance. It contributes to an understanding of why highlanders opted to live in a forest milieu, not isolated from outsiders but careful to maintain some distance. The second section delineates the evolution of the interactions between natural ecosystems and social ecosystems in the changing tributary region. The last section documents major changes that have recently occurred under the guise of development. It questions the remaining possibilities for indigenous people to continue living with dignity in a shrunken territory in the present socio‐political environment. The conclusion proposes research orientations focusing on some neglected dimensions of indigenous cultures dealing with new forms of resistances.