bluuebunny/crossref_metadata_2025 huggingface dataset:
Modeling and Optimization of New Flocculant Dosage and pH for Flocculation: Removal of Pollutants from Wastewater
Authors: Dawood Ammar , Li Yilian
Published: March 2013

In this paper, a new ferric chloride-(polyvinylpyrrolidone-grafted-polyacrylamide) hybrid copolymer was successfully synthesized by free radical polymerization in solution using ceric ammonium nitrate as redox initiator. The hybrid copolymer was characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Response surface methodology (RSM), involving central composite design (CCD) matrix with two of the most important operating variables in the flocculation process; hybrid copolymer dosage and pH were utilized for the study and for the optimization of the wastewater treatment process. Response surface analyses showed that the experimental data could be adequately fitted to quadratic polynomial models. Under the optimum conditions, the turbidity and chemical oxygen demand (COD) removal efficiencies were 96.4% and 83.5% according to RSM optimization, whereas the optimum removals based on the genetic algorithm (GA) were 96.56% and 83.54% for the turbidity and COD removal models. Based on these results, wastewater treatment using this novel hybrid copolymer has proved to be an effective alternative in the overseeing of turbidity and COD problems of municipal wastewater.
Promoting Evidence-Based Dysphagia Assessment and Management by Nurses
Authors: Sandhaus Sonia , Zalon Margarete L. , Valenti Donna , Harrell Faith
Published: March 2013

The Ottawa Model of Research Use guided the Hospital Elder Life Program nursing staff at a community hospital in promoting dysphagia assessment and management. The effect of an educational program and educational outreach on nurses' knowledge retention and nurse-initiated speech language pathology (SLP) referrals were assessed. The sample consisted of 122 nurses. Repeated measures analysis of variance demonstrated significant differences among the pretest and posttests immediately after and at 2 and 6 months later (
F
[3,70] = 10.126,
p
< 0.001). Nurses were more likely to initiate SLP referrals after the program. Improving practice requires stakeholder engagement and multiple strategies to sustain change.
Patient Perceptions of a Remote Monitoring Intervention for Chronic Disease Management
Authors: Wakefield Bonnie J. , Holman John E. , Ray Annette , Scherubel Melody
Published: March 2013

Use of telecommunications technology to provide remote monitoring for people with chronic disease is becoming increasingly accepted as a means to improve patient outcomes and reduce resource use. The purpose of this project was to evaluate patient perceptions of a nurse-managed remote monitoring intervention to improve outcomes in veterans with comorbid diabetes and hypertension. Postintervention evaluation data were collected using a 12-item questionnaire and an open-ended question. Participants rated the program as generally positive on the questionnaire, but responses to the open-ended question revealed criticisms and suggestions for improvement not captured on the questionnaire. Interviewing participants in these programs may offer richer data for identifying areas for program improvement.
Introducing Insulin into Diabetes Management
Authors: Spain Margaret , Edlund Barbara J.
Published: March 2013

Many older adults with type 2 diabetes require insulin to supplement or replace oral hypoglycemic agents to achieve better glycemic control. Over time, the addition of this more intensive therapy is needed to preserve beta cell function or prevent macrovascular or microvascular sequelae. This is the result of the natural progression of diabetes and not a failure on the part of the patient. Clinicians must evaluate many factors in an attempt to individualize a safe optimal glycemic level for older adults. Considerations should include when insulin should be initiated, the type of insulin and regimen, and a safe individualized target goal while preventing hypoglycemia. Important in this decision are the patient’s comorbid conditions, functional and cognitive status, social environment, financial ability, and life expectancy. The risks and benefits of more stringent glycemic control must be considered in the context of treatment options, priorities, and quality-of-life issues for both the patient and family.
An Introduction to Parental Alienation Syndrome
Authors: Farkas Michelle M.
Published: March 2013

Parental alienation syndrome (PAS) can occur during a tumultuous divorce between embattled parents involved in a bitter child custody dispute. During parental warfare, a child is used as a weapon by one parent (alienating parent) against the other parent (alienated/targeted parent). The targeted parent-child relationship once encased with unconditional love is transformed by an unrelenting campaign of denigration, criticism, and hatred. Since nursing literature on PAS is almost nonexistent, the purpose of this article is to increase nursing awareness and provide basic information. Awareness of PAS symptoms and interpersonal dynamics is important to prompt nurses in recommending treatment for families. Nurses should collaboratively join other professionals in their quest to provide the best treatment possible.
Young-Onset Dementia
Authors: Hunt Debra Collins
Published: March 2013

It is estimated that more than a half million people in the United States are living with young-onset dementia and another half million with mild cognitive impairment, a precursor of dementia. Relatively little has been written about the psychosocial needs of these people, but information can be extrapolated from the literature on dementia in older adults and the developmental tasks and roles of middle age. This article synthesizes this literature and provides information to help psychiatric nurses and other health care professionals better understand individuals living with young-onset dementia.
Sobre el significado de τραχύς en TLocri 15.15: ¿qué es la «pez áspera»?
Authors: Méndez Dosuna Julián
Published: March 2013

La forma τραχεος TLocri 15.15 ha dado pie a varias interpretaciones: una referencia a un terreno áspero, la fracción de un stater o un tipo de pez: pez «dura» como término equivalente de lo que se suele llamar pez «seca» (πίττα ξηρά). Este artículo pretende demostrar que, en realidad, τραχεος debe referirse a la pez «en bruto» que no ha sido aún elaborada y procesada (πίττα ὠμή).
Ablativo de gerundio «anterior» en la Crónica mozárabe
Authors: Mikulová Jana
Published: March 2013

En la Crónica mozárabe de 754 aparecen ablativos de gerundio que pueden interpretarse como anteriores al predicado principal. Esta interpretación se basa, sobre todo, en las características aspectuales y el contexto. El uso del ablativo de gerundio «anterior » demuestra el acercamiento entre el participio de presente y el ablativo de gerundio en latín tardío. El ablativo de gerundio «anterior», sin embargo, no aparece con frecuencia en textos de la época.
Gear tooth health state monitoring based on morphological filtering and Wavelet transition
Authors: Feng Huanzhi , Liang Wei , Zhang Laibin , Shi Juwei
Published: March 2013

Gear box is one of the most important transmission components in mechanical systems. Fault diagnosis and state monitoring techniques for gear box have been studied for years. But in practical, gear box usually works under varying work conditions which has not been considered in most studies. In this paper, a novel state monitoring method is proposed for monitor gear box work with varying conditions. The vibration signal is de-nosied by morphological filtering. Then gear-mesh frequency band is extracted by wavelet transform. Dimensionless time indexes are used as state monitoring features. A regularization method is proposed to calculate gear tooth health index. Simulate and experiment signal are presented to illustrate the effectiveness of the method. The result indicates that, morphological filtering is an efficient method to de-nosie the vibration signal; wavelet transform can extract the gear-mesh frequency band; gear tooth health index can monitor gear tooth state based on vibration signal.
QoS-Aware Ubiquitous service Composition Based on Linear Logic Inference Rules
Authors: Sun Hongbin
Published: March 2013

Ubiquitous service modeling and composition is constrained and communication among nodes is error-prone and unreliable. Such a dynamic environment requires a continuous adaptation of the composition of services. The paper proposes a method for semantic message matching in automatic service composition. Since the service interface definition can be represented by ontology concepts, the internal representation language enables us to define some issues required by service composition formally, qualitative and quantitative constraints plus reasoning on concepts, and the service behavior can be represented using linear logic formulas, so the inference rules of linear logic can check the match-ability and satisfy-ability of service message. the mobile agent uses projection-join closure to capture such message situations. the optimization of the composition is translated into dynamic services selection with QoS global optimization. The simulation results show that the approach can significantly improve the Ubiquitous service performance. It adapts well to the changes of dynamic environments.
Design Navigation Computer System Based on Double Digital Signal Process and FPGA
Authors: Yan Jie , Xu Xiaosu , Wang Lihui
Published: March 2013

The article describes the design and implementation of integrated navigation embedded computer system based on double DSP and FPGA. In the system, TMS320C6727 (C6727) and TMS320C6713 (C6713) digital signal processor (DSP), which produced by TI are used as the core processing chip. C6727 is responsibility to de-noising the inertial measurement unit (IMU) original signal, and send the IMU data to C6713. C6713 is responsibility to collect the IMU and GNSS data, run navigation algorithm and send the navigation information to other implements. The I/0 interface, timing control, data buffering and address bus decoding modes are implemented in FPGA. This design can improve the system real-time performance and reliability.
Performance Evaluation of Marine Industries Based on Eco-economy
Authors: Gong Minli , Qi Yanqing
Published: March 2013

An assessment framework is made to evaluate the performance factors of marine industries from the perspective of eco-economics by means of the AHP and the Delphi methods. Results are as follows: Performance assessment index of marine industries is decided by ecological performance, economic performance and social performance with ecological index taking priority over economic index; the efficiency of economy output and value-creating are preferred in the pursuit of low energy-consuming and less polluting marine industries; and in the near future, marine industries will make the greatest contribution to employment.
Long-Term Monitoring of an Endangered Desert Fish and Factors Influencing Population Dynamics
Authors: Van Haverbeke David R. , Stone Dennis M. , Coggins Lewis G , Pillow M. J.
Published: March 2013

The lower perennial corridor of the Little Colorado River in Grand Canyon, Arizona, is numerically dominated by endemic desert fishes and therefore significant for conservation of these species. From 2000 to 2012, the U.S. Fish and Wildlife Service conducted monitoring of native fishes in the Little Colorado River near its confluence with the Colorado River. The primary focus of these efforts was to estimate the spring and fall abundance of native fishes, especially the federally endangered humpback chub Gila cypha. Because humpback chub in Grand Canyon are influenced by operations of Glen Canyon Dam, our efforts provide managers of the Glen Canyon Dam Adaptive Management Program with abundance estimates and trends of humpback chub in the Little Colorado River, the most important tributary in Grand Canyon for spawning and production of this species. From 2001 to 2006, the spring abundance estimates of humpback chub ≥150 and ≥200 mm remained relatively low (≤3,419 and ≤2,002 fish, respectively), thereafter significantly increasing to highs of 8,083 and 6,250, respectively, by spring 2010. Also from 2000 to 2006, the fall abundance estimates of humpback chub were substantially below those abundances estimated after 2006. In addition, flannelmouth sucker Catostomus latipinnis and bluehead sucker Catostomus discobolus showed post-2006 increases in relative abundance, suggesting a systemwide event occurred that was beneficial to native fishes. Most of the increases of humpback chub occurred during the spring season in the reaches of the Little Colorado River between 5 and 13.57 km upstream from the confluence. Successful production of age 0 year classes of humpback chub may be partially driven by hydrograph dynamics of the Little Colorado River, whereas water temperatures and predation pressures in the mainstem Colorado River likely influence survivorship of native fishes into subadult and adult life stages.
Influence of Body Size on Dietary Nutrition of White-Tailed DeerOdocoileus virginianus
Authors: Luna Ryan S. , Duarte Adam , Weckerly Floyd W.
Published: March 2013

Intraspecific competition is one of the major factors that can have an effect on the resources utilized within a habitat. Differences in diet quality of selected forage have been noted in size-dimorphic ungulates. However, on an intraspecific basis, data demonstrating a body size influence on diet quality are lacking. We examined diet quality across a range of body masses (14–76 kg) in white-tailed deer Odocoileus virginianus (n  =  108) in a 2,628-ha enclosure at Kerr Wildlife Management Area, Kerr County, Texas, USA. The quality of the diet consumed was determined by crude protein, acid detergent fiber, and neutral detergent fiber content of digesta in the rumen–reticulum. Results indicated that in relation to body mass, the ratio of crude protein to acid detergent fiber was greater for smaller bodied white-tailed deer. By consuming a diet higher in crude protein than did large bodied individuals, small-bodied individuals should meet their high mass-specific metabolic demands more efficiently. Furthermore, selective foraging by different-sized individuals might also reduce intraspecific competition. Information presented herein is relevant to wildlife managers in that by increasing available high-quality forage, small-bodied individuals will more efficiently meet their metabolic demands, which could have ramifications on recruitment within that population.
Research on the Mathematical Model of the Double Wishbone Independent Suspension
Authors: Chen Yi Jie , Wang Ya Jun , Ju Hai Jie , Ning Dan , Zheng Guan Hui
Published: March 2013

The paper put forward to research the mathematical model of double wishbone independent suspension. First,the nonlinear elastic performance of oil gas spring was deduced through real gas state equation. After that, Kinematics principle of double wishbone independent suspension was researched, it was help for understanding how to design the guide mechanism of suspension. In the end,the external influence factors on suspension were analyzed, the conclusion could be used as a reference for design of the device.
Optimized Design of Induction Cooker by Numerical Computation and Experimental Investigation
Authors: Li Dong Liang , Yang Xiao Guang
Published: March 2013

Optimized design of litz-wire inductor and optimal choose of working frequency is required to improve the efficiency of induction cooker. A new formula to calculate the dynamic inductance is deduced from the basic definition of the inductance, considering the case that the pot may be lifted with the inductor in working state. A method to calculate the loss of the inductor and to achieve the optimized the diameter of the litz wire by numerical calculation is presented. Take advantage of the calculation results, the resonant frequency for the induction heating system can be determined. An experimental prototype was built to verify the calculation method.
Comparative Study on Heat Transfer Characteristics of Three Kinds of Micro-Groove HEAT Pipes
Authors: Liu Yi Bing
Published: March 2013

In this paper, a simulation of three kinds of micro-groove plate heat pipes--- rectangular; trapezoidal and triangular, is conducted by thermal analysis software ANSYS. Through comparing with the focal point temperature value of the surfaces of micro-groove plate heat pipes, respectively being 30W; 40W; 50W, the result is obtained that trapezoidal plate heat piper has more excellent performance.
Design of Powertrain Parameters and Simulation of Electric Power-Assisted Hybrid Electric Vehicle
Authors: Li Jing Hong , Wu Xiu Chun , Wan Zhi Qing
Published: March 2013

Thispaper puts forwards a design method base on a electric power-assisted HybridElectric Vehicle (HEV), which take dead-weight into account to design itsparameter of pivotal components among many actual design methods. Then simulatingand analyzing are made in ADVISOR about its fuel economyand emission. The results of simulation indicated that the fuel economy andemission levels of electric power-assisted HEV which take dead-weight intoaccount to choose its powertrain parameters is far better than the vehiclewhich used the conventional method.
Research of Electric Radiator Design Based on DFMA Method
Authors: Wang Xin Ting , Zhang Jun Xia , Yin Li Ping
Published: March 2013

Aimed at optimizing electric radiators design process, the enterprises expectationsmanufacturing technologies and market developing status were analyzed, then electric radiators key design restraining factors were summarized, design orientation was proposed finally. Based on this premise, a block-based electric radiator design scheme was presented with the Design For Manufacture & Assembly method (DFMA), then taking electric radiators key structure and part as an example , the application of DFMA in design practice was discussed in the view of coordinating the relation of product styling effect and structure design. Practices show that DFMA method is beneficial to improve design efficiency and feasibility.
A Strong Tracking Cubature Kalman Filter for Nonlinear Estimation
Authors: Wang Yong Qi , Yang Feng , Liang Yan , Pan Quan
Published: March 2013

In this paper, a novel method based on cubature Kalman filter (CKF) and strong tracking filter (STF) has been proposed for nonlinear state estimation problem. The proposed method is named as strong tracking cubature Kalman filter (STCKF). In the STCKF, a scaling factor derived from STF is added and it can be tuned online to adjust the filtering gain accordingly. Simulation results indicate STCKF outperforms over EKF and CKF in state estimation accuracy.
A Design Reuse Process in Reduction the Low Yield Rate for Display Panel
Authors: Pa P.S.
Published: March 2013

The low yield rate in display panel production that results from imperfect Indium Tin Oxide layer deposition is well known. In this experiment a 6thGeneration TFT-LCD is used to investigate an ultra-precise method for the removal of Indium Tin Oxide (ITO) thin film microstructure from defective display panels. The complete removal of the ITO layer makes it possible to put these panels back into the production line for reuse with a considerable reduction of both waste and production cost. This process, which involves the removal of ITO layer substructure by means of an electro-chemical etching process, is of major interest to the optoelectronics semiconductor industry. The ITO film can be removed completely by a proper combination of feed rate and electric power. In this electro machining process a high current flow and high feed rate of the display (color filter) achieves complete and efficient removal of the ITO layer. A large diameter cathode virtual rotation circle also corresponds to a higher removal rate. A small cathode end radius effectively improves dregs discharge and is an advantage when associated with a high workpiece feed rate. This precision reuse process for the recycling of defective display screen color filters is presented as an effective tool for use in the screen manufacturing process. The defective Indium Tin Oxide thin-film can be removed easily and cleanly in a short time.
A Study on GDOP for Vector-Based Tracking Loop GPS/INS Receiver
Authors: Wang Hui , Guo Xiao , Jun Yu Li
Published: March 2013

Geometric Dilution of Precision (GDOP) value will become larger when the number of visible satellites is less than four or the geometry of satellite constellation is poor, a GDOP Chimney Peak phenomenon is also easy to emerge [, the positioning accuracy of GPS receiver will be affected seriously. A vector-based tracking loop GPS/INS receiver design method is proposed in this paper. The current position of receiver is given by INS, Line-of-Sight (LOS) unit vectors between receiver and satellites will be built, which are transmitted into vector tracking loop, the relationship between LOS and GDOP is introduced in detail. Pseudorange and pseudorange-rate are used as measurements to design navigation filter. The simulation results demonstrate that proposed vector tracking method can avoid GDOP Chimney Peak phenomenon, position Root Mean Square error is less than 10 meters.
The Design of Elevator Monitoring Terminal Based on the GPRS
Authors: Fang Qi Zhi , Ge Yong Zhe , Xu Hong Yu
Published: March 2013

The elevator monitoring system of elevator is an integrated elevator management platform that can realize fault for alarm, rescuing trapped persons, daily management, quality evaluation and preventing hidden trouble by using C8051f060 MCU as the control core to sensor and collect the elevator operation data, with built-in TCP/IP transport protocol and with HuaWei GTM900C GPRS module to realize all kinds of data monitoring of the elevator, and the transmitting of the data to processing server through the network . This paper mainly introduces the formation of wireless monitoring network system and communication protocol construction, and especially analyzes the function and the system architecture of the wireless communication terminal in real-time monitoring. GPRS can not only satisfy the requirement of real-time elevator monitoring system, with low cost and high reliability but can also effectively avoid a variety of problems that are caused by transmitting the alarm data through cables . This system provides many valuable experiences for the development of unattended system, and it has a broad development prospects.
Delay-Dependent Stability Criteria for Time-Delayed Systems
Authors: Song Chang Hui
Published: March 2013

This paper drivesthe asymptotical stability conditions for a class of linear systems with time delay.First, aseries of integral inequalities based on quadratic term are formulated bycombining Leibniz-Newton formula. Next, basedon Lyapunov-Krasovskii functional method and linearmatrix inequality, the sufficient conditions of delay-dependent stability are derived toensure thelinear systemswith timedelay are asymptotically stable. Last,the results are illustrated by some numerical examples andthe delay bounds obtained in this paper are of less conservative.
A Speed-Up Way of Template Matching Using Normalized Cross-Correlation
Authors: Chen Fang , Zhang Cun Ji , Zhao Bin Wen , Shi Jin Fei
Published: March 2013

One classic algorithm usedin template matching is normalized cross correlation method. It often achieveshigh precision. But it does not meet speed requirements for time-criticalapplications. To solve that issue, a speed-up way of template matching isproposed. The fast matching way bases on pyramid hierarchical searchingalgorithm. It adopts two template matching methods to match images, which baseon rough matching proceeds local matching precision. Firstly, the coarsematching is performed based on gray-scale projection algorithm. Secondly, theprecise matching is made based on several small block matching. The new way iscompared to conventional approach without pyramid hierarchical searching byexperiments. Experimental result demonstrates that the proposed way efficientlyimproves the speed of template matching and the precision is unchanged.
Positive Solutions for Nonlinear Lidstone Boundary Value Problems
Authors: Wang Lei , Li Li
Published: March 2013

In this paper, we consider the existence of positive solutions for nonlinear Lidstone boundary value problems. An new existence result is obtained by applying the fixed point index theorem.
QCSP Based Schedulability Test of Real-Time System
Authors: Zhang Ju Yang , Chen Yi Xiang
Published: March 2013

The problem of schedulability test of real-time task in scheduling system has been addressed. In such as real-time scheduling problems with uncertain interrupt operation, Quantified Constraint Satisfaction Problems (QCSP) were introduced to model and solve CSP involving uncertainty or uncontrollability on the value taken by some variables. In this paper, we propose to a novel approach to schedulability test based on the QCSP model. Based on the QCSP model of scheduler and interrupter in the real-time scheduling system, we transform the schedulability test into the satisfability problem. Finally, we design the algorithm QCSP-SchTest for judging the satisfability of a schedule S(α). This leads to a new schedulability test method without considering the specific scheduling algorithm or strategy.
The Research Methodology of AR Spectrum Estimation to Stepped-Frequency Signal Processing
Authors: Bai Jian , Zhang Wei , Sun Hou Jun
Published: March 2013

This paper uses modern spectrum setimation to process stepped-frequency signals which have extracted to obtain high resolution range profile. This paper use FPE criteria and AIC criteria to estimate the order of AR model, and linear prediction is used to test the performance of AR model. Compared with conventional IFFT processing, the results of spectrum estimation is satisfactory, and the exact location of high resolution range profile is determined.
Time Series Preprocessing and Forecasting Based on EMD
Authors: Feng Guo Chen , Shang Peng Jian , Wang Xue Jiao
Published: March 2013

In this paper we pay attention to the preprocessing of time series and its application. We apply Empirical Mode Decomposition (EMD) to decompose three kinds of series into their components in order to study the data and forecast more efficiently. We try to unite EMD analysis and autoregressive integrated moving average processes (ARIMA) into a new forecasting technique which we call EMD-ARIMA. We find that our method is extraordinarily close to the original data.
An Arc Fault Current Interrupter Based on Wavelet Transformation
Authors: Cai Zhi Yuan , Xu Yi
Published: March 2013

In real life , arc fault circuit interrupter plays a very important role to prevent the arc fault from fire about protecting the circuit.This article mainly introduces the types of arc,and the main purpose of designing this new type interrupter.The paper tells that it knows about the basic principle of wavelet transformation and use the wavelet tested data to be analyzed.The paper uses the window moving method to summarizes how to judge the basis of arc fault.Some kinds of loads are suitable and some are not.The paper also designs arc detection flow chart.It applies for effective basis for further.
Performance Improvement of Digital Phase Locked Loop Algorithm Using all Pass Filter and Low Pass Filter for Grid Connected Inverter Reference
Authors: Yusivar F. , Syaifuddin Y. , Rahman A.N.
Published: March 2013

Digital Phase Locked Loop (PLL) is an algorithm that is used to detect the phase, frequency, and amplitude of a signal. The output of digital PLL algorithm can be used as synchronization reference for grid connected inverter. A digital PLL algorithm is very popular to be used since its structure is very simple and it has high accuracy. However, the output of digital PLL is not stable if the input reference frequency is shifted from the pre-defined fundamental frequency and that condition will result an oscillation in digital PLL output. In this paper, an algorithm modification is employed using low pass filter and all pass filter to improve the digital PLL output response under various condition. All simulation results will be shown and compared to the conventional algorithm.
Research on Coal and Gangue Identification Method Based on Infrared Thermal Wave Detection
Authors: Zhao Yi Ding , Hu Shao Peng
Published: March 2013

A method based on infrared thermal wave to distinguish coal and waste rock is introduced. Infrared thermal wave detection technology, a fast and effective detection method, can detect different characteristics of coal and gangue on the surface or subsurface. Test showed that coal and waste rock can be distinguished effectively by processing their infrared thermal wave image.
Connected Stability Analysis of Delay Systems via the Matrix-Valued Lyapunov Function
Authors: Sun Jian Fei , Wang Xiao Li , Chen Chen
Published: March 2013

Bythe method of unioning thematrix-valued Lyapunov functional and comparison theorem,delay big system’sconnected Lyapunov stability is studied deeply.A series of new sufficientconditions are proposed.These results have not only theory meaning but alsopractical value.
Analysis of Acoustic Radiation of Submerged Damped Cylindrical Shell Combined with Thin Shell Theory and Elasticity Theory
Authors: Zhang Jun Jie , Zhu Xian Ming , Liu Zhi Zhong
Published: March 2013

The acoustic radiation of submerged damped cylindrical shell is investigated by combining with thin shell theory and elasticity theory. The classical integral transform technique is used to derive the solutions of coupled equations. Numerical computations show the correctness of the proposed method, and also conclude the influence of thickness of inner shell and coated layer to acoustic radiation. The conclusions may be valuable to the application of damping material on noise and vibration control of underwater pipes.
Photocatalytic Reactions of Titanium Dioxide for Active Packaging Application
Authors: Somkid Kanokwan , Ngaotrakanwiwat Pailin
Published: March 2013

The adsorption and photocatalytic reactions of ethylene and oxygen were investigated by sol-gel routed TiO2 particles. The dependence of ethylene –free oxygen concentrations, oxygen-free ethylene concentrations and the molar ratio of C2H4:O2 in the gas mixture on adsorption and photocatalytic reaction rates were examined. The increase of ethylene –free oxygen concentrations or oxygen-free ethylene concentrations can enhance the adsorption rates while decreasing photoreaction rates. The presence of ethylene and oxygen can increase adsorption rates leading to enhance photocatalytic rates. The photocatalytic rates of ethylene oxidation and oxygen reduction were 10-8 mol. s-1.g-1 evenly at C2H4:O2 molar ratio equal to 3:1.
Design of Software for High-Speed Inkjet-Printing System Based on Distributed
Authors: Qi Li Wei , Guo Pei Yuan
Published: March 2013

With the rapid development of the printing industry, the speed of the inkjet printer has soon become the focus. In view of the high requirements of printing speed, the in-depth analysis of the bottleneck, which restricts the press printing speed, is made. As the computer hard disk access data speed is limited at this stage, the high-speed inkjet printing system software based on distributed processing is developed. This software system based on object-oriented programming theory, by taking VS2008 as the development platform and using C/S system architecture, realizes multiple servers in parallel processing, data transfer and printing capabilities. The practical application proved that it deed improve the printing speed effectiveness and feasibility.
Vehicle Type Recognition Using in Geomagnetic Data Based on Neural Network
Authors: Kang Rui Qing , Li Xi Sheng , Wang Hai Jian
Published: March 2013

Vehicle Type Recognition is the base and key point for Intelligent Transportation,Through the geomagnetic disturbance data of different vehicle type, constituting a sort of BP neural networks, and optimizing it using Genetic Algorithm. The result is good. This method can raise the recognition rate effectively and reduce the quantity of calculating. It has strong practicability.
A Method of Die Surface Compensation after Spring Back Prediction in Sheet Metal Forming
Authors: Li Xiao Da , Zhan Xiang Hui
Published: March 2013

Spring back in the process of sheet metal forming leads to deviations between design sizes and actual dimensions of stamping parts, to meet the precision requirements of deviations, the shape of die surface needs to be compensated in the opposite direction according to the predicted spring back by numerical simulation. In this article, the R S coordinate mapping method is used to revise coordinates of finite element nodes according to the predicted spring back, and the bi-cubic B spline surface interpolation method is applied to reconstruct die surface with CAD data format. An example shows that the algorithms are feasible and have some practical values.
Nano Geopolymer for Sustainable Concrete Using Fly Ash Synthesized by High Energy Ball Milling
Authors: Al Bakri A.M. Mustafa , Kamarudin H. , Bnhussain M. , Liyana J. , Ghazali Che Mohd Ruzaidi
Published: March 2013

This paper presents the development of a nano geopolymer for sustainable concrete using fly ash synthesized by high-energy ball milling. In this paper, we report on our investigation of the effects of grinding on the binder properties and the optimization of the mix design for nano geopolymer paste. The research methodology consisted of synthesizing fly ash by using a high-energy ball mill to create nanosized particles and determining the formulation and mix proportions required to produce a nano geopolymer paste with the addition of an alkaline activator. The ratio of fly ash to alkaline activator and sodium silicate to sodium hydroxide were constant for the entire experiment which is 2.5. Ball milling was conducted for the total duration of six hours, during which particle size was reduced from 10 μm to 60 nm. The nano geopolymer were cured at temperature 70°C and then tested on 1st day and 7th day for compressive strength. Scanning electron microscopy (SEM) was used to characterize the shape, texture, and size of the milled fly ash.
Design and Analysis of a New Permanent Magnet Actuator for Medium Voltage Vacuum Circuit Breakers
Authors: Zhang Jian Zhong , Cai Chang Hong , Wu Chuan Guo
Published: March 2013

This paper proposes a bi-stable permanent magnetic actuator (PMA) for medium voltage vacuum circuit breaker. The structure of the proposed PMA is discussed and the optimization of the structure is carried out. The model of finite element analysis (FEA) is constructed where the flux distributions, electromagnetic force under different structure parameters are analyzed. The feasibility and correctness of the PMA are verified by the FEA simulation results and the optimal size for movable plunger and stationary iron ring is obtained.
Hierarchical Meso-Microporous SAPO-11 Synthesis from Acid Assistant Dealuminzation: Effect of Acid Strength
Authors: Liu Zhen , Song Hao , Feng Zhao Xuan , Yan Zi Feng
Published: March 2013

Hierarchically SAPO-11 with meso- and microporosity was prepared from a facile acid assistant dealuminzation procedure. Two kinds of acid with different acid strength were investigated. The results revealed that both the acid could efficiently remove alumina species in zeolite crystal lattice. N2 adsorption/desorption isotherm and HRTEM images showed the formation of mesoporosity in SAPO-11 after treated with hydrochloric acid but not with citric acid. XRD analysis showed the destruction feature of SAPO-11 was occurred after citric acid treatment.
Stability of Solid/Liquid Interface of Pb-80wt%Sn Alloy under Direct Current during Directional Solidification
Authors: Li Ning , Zhang Rong , Zhang Li Min , Du Li Fei , Liu Qian
Published: March 2013

The effect of medium-density current on the morphological stability of S/L interface of Pb-80wt%Sn alloy during directional solidification was investigated. The results indicated that both the DC of positive and negative 200 Acm-2 could decrease the critical growth rate of cellular/dendrite transition and minish the range of growth rate of cellular crystal. DC accelerated the microstructure transition from cellular crystal to dendrite crystal at the same pulling rate. Furthermore, the dendrite crystal was refined by positive and negative DC at high pulling rate. The effect of direction of DC to the microstructure transition could be neglected. In conclusion, the positive and negative 200 Acm-2 decreased the stability of solid/liquid interface of Pb-80%Sn alloy, and the lower the pulling rate was applied, the more obviously DC affected the microstructure.
Well to ERT Front-End Sensor-Based Design Production
Authors: Jiang Jian , Li Zhen Feng , Yang Da Peng
Published: March 2013

Resistivity oil-water interface imager ( well to ERT ) is applied to the remaining oil in mining, according to water and oil interfacial resistivity changes to determine the fracture trend, and for the remaining oil exploitation to provide technical supports. In order to realise long-term telluric recordings correctly, and through receive cable, NI acquisition card, and ultimately sent back to the receiver, and have good resistance matching to the next step of data processing. Electrodes is one of measuring some physical quantities to distinguish the ability to directly determine the accuracy and reliability of the inversion. The use of very stable electrodes is necessary.
Effect of Ti and Zr Deoxidation Process on the Inclusions in Low Carbon Steel
Authors: Shi Ming Hao , Liu Ji Yuan , Zhu Fu Xian
Published: March 2013

The35kg ingot was refined with vacuum induction furnace by means of three various deoxidationprocesses in laboratory. From the steel-making point of view, effect of deoxidationprocess on inclusions and was analyzed. The fraction, size and distribution ofinclusions were studied with scanning electron microscope (SEM)and energy dispersive spectrometer (EDS) in three various deoxidation processessteel . The results showed that the volume fraction of inclusions was thelargest in Ti/Zr deoxidation process and the inclusions distributed uniformly. Itwas found that the amount of fine inclusions size in the range of 0.5~1.5 μmwas the largest atTi/Zr deoxidation process. The fraction of inclusions decreased with holdingtime increasing during alloying in present study.
Fault Diagnosis of Analog Circuit Based on Multi-Test Points and Multi-Feature Information
Authors: Pan Qiang , Yang Chao
Published: March 2013

In the process of use BP neural network to fault diagnosis of analog circuits, the network input which represents fault signature was very important. A given new method which base on multi-points and multi-feature information is taken to construct the original sample set. With this method to construct the original fault signature set, then as the input of BP neural network and train the network. Simulation results show that, the network train with sample set which constructed by this method use in fault diagnosis of analog circuits is better accuracy than traditional methods. Proved the feasibility of this method in fault diagnosis of analog circuits, and offer a new method for fault diagnosis of analog circuits.
Design and Implementation of the Tightly-Coupled SINS / GPS Integrated Navigation System Based on FPGA for Target Missile
Authors: Guo Jing Jie , Cai Xiao Feng , He Chao
Published: March 2013

A novel architecture of tightly-coupled SINS/ GPS integrated navigation system based on FPGA for target missile is proposed in this paper.The whole system is built on a single single FPGA chip containing a Nios II soft-core processor. In addition, the embedded real-time operating system μC/OS-IIis transplanted to the Nios II processor for managing each module in the system. The system can still provide the high-precision navigation data to integrated control computer of target missile when the number of available satellites is less than 4 by means of processing the pseudorange and pseudorange rate seprately. Therefore, the system has the strong application significance in terms of reducing the route shortcut of target missile.
Research on Automatic Detection Method about Rotor Initial Position of Permanent Magnet Synchronous Motor
Authors: Li Bao , Zhou Guang Xu
Published: March 2013

ts required to real-time detect rotor position for vector control of permanent magnet synchronous motor, the difference is initial rotor position angle between the output position signal of absolute rotary transformer and the position signal for park transformation, then it is necessary to get the initial position of the motor before the motor starts. Based on the characteristics of permanent magnet synchronous motor, a certain method about automatic detection of the initial position of a rotor is obtained. Compared with other methods, there are advantages such as simple calculation, small impact by the external and high detection accuracy. At last, the correctness of the method is verified by theory and experiment.
The Design of Governing System of DC Motor Based on EDA Technology
Authors: Zhang Yue , Duan Xin Wen , Liu Yuan
Published: March 2013

Applying EDA technology, the dc speed governing system was designed, which produces digital signal of PWM waveform. These produced signals can be directly added to the dc machines, by changing the duty ratio of impulse wave, to realize speed regulation, not needing D/A transformation. With a high reliability and strong antijamming capability, this design is used widely. The simulation results of MAX + plus II software indicates that the desired effect is achieved for this design.
A Novel Three-Phase Power Factor Correction with Digital Control
Authors: Yue Yun Tao , Liu Zhi Hong , Lin Yan
Published: March 2013

A new three-phase power-factor-correction (PFC) scheme is discussed using two single phase power factor correction circuit parallel connected. Two phase orthonormal voltage is produced by means of a auto transformer from a three phase input,fluctuation of neutral point by three single phase power-factor-correction circuit parallel connected is canceled,coupling interference is reduced among three phases,digitally controlled Power Factor Correction Boost Converters is adapted,input current wave sine with unity power factor suppress the secondary harmonic of input AC side is realized,voltage and low current stresses across each switch are reduced. Simulation and experimental results prove that it can achieve high power factor,low current,good capability of anti-interference and high reliability.
Research on Characteristics of Cogging Torque of Permanent Magnet Synchronous Motor Based on Finite Element Method
Authors: Yu Shen Bo , Cao Shen , Li Lei , Xiao Feng Yi
Published: March 2013

This paper presents a method of reducing cogging torque of Permanent Magnet Synchronous Motor (PMSM) based on Finite Element Method (FEM). Cogging torque can be reduced by pole and slot number combination and the length of air gap reasonably. An investigation into the cogging torque in 4 pole, 48 slot and 6 pole, 54 slot interior-magnet machines with overlapping winding is described. The calculation results show that cogging torque can be reduced by nearly 50% by pole and slot number combination reasonably. Then influence of different length of air gap on cogging torque is also researched. Cogging torque can be weaken by increasing the length of air gap effectively, the smoothness of the motor running can be improved.
Mine Pump Control System Based on KJD30Z Industrial Control Computer
Authors: Qian Bing Yun
Published: March 2013

With the increase of mining depth, the condition of underground water gushing becomes more complicated and uncertain; thus, the traditional pump control program cannot meet all the needs of safety production in coal mines. To this condition, the automatic pump control system based on KJD30Z mine intrinsically safe industrial control computer has been put forward, and pump automatic control system is formed. The automatic control of pump turn-on, turn-off and shift are realized according to the change of water bunker level. And so the real-time monitor of underground pump station from ground centralized control, In this way, better communication and alarm function can be formed, which is also quite helpful for the reliability of drainage system and the operation of economy.
Design of Fuzzy-PID Controller for Ride Comfort Enhancement of a Half-Vehicle with Active Suspension System
Authors: Lan Wen Kui , Ni Er Dong
Published: March 2013

A fuzzy-PID controller is developed and applied to the active suspension system for the ride comfort enhancement of a half-vehicle model. A four degree-of-freedom vehicle model with active suspension system is proposed, which focused on the passenger’s ride comfort performance, and a fuzzy-PID controller is developed by incorporating the fuzzy logic control mechanism into the modifications of the PID structure. The performance of the proposed controller has been verified by comparing it with passive control method in MATLAB/Simulink. The simulation results indicate that the developed fuzzy-PID controller enhances the ride comfort performance of the vehicle active suspension system by reducing the body acceleration and pitch angle significantly.
Research on the Flight Control for an Asymmetrical X-Quadrotor
Authors: Ding Yong Jun , Wang Xiang Zhou , Zheng Shu Hua
Published: March 2013

The paper presents an asymmetrical structure of X-quadrotor, which is different from the traditional quadrotor and is more complicated in the analysis of control forces and moments. A novel control method based on backstepping is applied in the attitude loop. And the compensation for perturbations of outer environment and noise of the measurements has been done. Then, various simulations are performed and the results show the system has a quick response with small overshoot and good dynamic characteristics. Finally, the experiments are implemented on the prototype. The flight test data has validated the robustness of the control algorithms.
The Design of Rolling Bearing Testing for some Missile Control System Based on C8051F021
Authors: Wang Hong Li , Cheng Xu De , Liu Fu Li , Zhang Dong Yu
Published: March 2013

C8051F021 is a fully integrated mixed-signal System-on-a-Chip MCU. It is applied to rolling bearing testing, and portable rolling bearing testing machine is realized. Performance and integrated level of the system are improved greatly for C8051F021 application. The hardware structure of the system is discussed in this paper, and the key codes of information acquire is also given.
Design of Intelligent Control of DC Motor
Authors: Li Gao Jian
Published: March 2013

This paper introduces a DSP-based intelligent control of DC motor system, describes the intelligent control strategy of the DC motor, optical isolators driving ,related protection measures and the hardware and software design. The experimental results show that the control system can reduce the transient process such as over-voltage, inrush current of the switching operation etc. Comparing with the existing analog control circuit, its structure is simple, easy to operate and can improve electrical energy quality.
The Study of Optimal Fuzzy PID-Smith Control Based on Genetic Algorithm
Authors: Liu Dian Ting , Li Hai Xia
Published: March 2013

In this paper, the improved genetic algorithm is applied to optimize the quantization factors and the scaling factors of fuzzy control, and the optimized rule table and membership functions is obtained according to certain performances. Then a kind of optimal fuzzy PID-Smith control method based on genetic algorithm is proposed and its simulation model is built in this paper, a second-order system is simulated and analyzed. The results show that requirements of deterministic performances of the new control method are better than the conventional methods through the simulation results in the stability, rapidity and robustness.