bluuebunny/crossref_metadata_2025 huggingface dataset:
H∞ Fault Tolerant Control of WECS Based on the PWA Model
Authors: Shi Yun-Tao , Kou Qi , Sun De-Hui , Li Zheng-Xi , Qiao Shu-Juan , Hou Yan-Jiao
Published: March 2014

The main contribution of this paper is the development of H∞ fault tolerant control for a wind energy conversion system (WECS) based on the stochastic piecewise affine (PWA) model. In this paper the normal and fault stochastic PWA models for WECS including multiple working points at different wind speeds are established. A reliable piecewise linear quadratic regulator state feedback is designed for the fault tolerant actuator and sensor. A sufficient condition for the existence of the passive fault tolerant controller is derived based on some linear matrix inequalities (LMIs). It is shown that the H∞ fault tolerant controller of WECS can control the wind turbine exposed to multiple simultaneous sensor faults or actuator faults; that is, the reliability of wind turbines can be improved.
Identification of Proteins of Altered Abundance in Oil Palm Infected with Ganoderma boninense
Authors: Al-Obaidi Jameel , Mohd-Yusuf Yusmin , Razali Nurhanani , Jayapalan Jaime , Tey Chin-Chong , Md-Noh Normahnani , Junit Sarni , Othman Rofina , Hashim Onn
Published: March 2014

Basal stem rot is a common disease that affects oil palm, causing loss of yield and finally killing the trees. The disease, caused by fungus Ganoderma boninense, devastates thousands of hectares of oil palm plantings in Southeast Asia every year. In the present study, root proteins of healthy oil palm seedlings, and those infected with G. boninense, were analyzed by 2-dimensional gel electrophoresis (2-DE). When the 2-DE profiles were analyzed for proteins, which exhibit consistent significant change of abundance upon infection with G. boninense, 21 passed our screening criteria. Subsequent analyses by mass spectrometry and database search identified caffeoyl-CoA O-methyltransferase, caffeic acid O-methyltransferase, enolase, fructokinase, cysteine synthase, malate dehydrogenase, and ATP synthase as among proteins of which abundances were markedly altered.
Landscape, Legal, and Biodiversity Threats that Windows Pose to Birds: A Review of an Important Conservation Issue
Authors: Klem Jr. Daniel
Published: March 2014

Windows in human residential and commercial structures in urban, suburban, and rural landscapes contribute to the deaths of billions of birds worldwide. International treaties, federal, provincial, state, and municipal laws exist to reduce human-associated avian mortality, but are most often not enforced for bird kills resulting from window strikes. As an additive, compared to a compensatory mortality factor, window collisions pose threats to the sustainability and overall population health of common as well as species of special concern. Several solutions to address the window hazard for birds exist, but the most innovative and promising need encouragement and support to market, manufacture, and implement.
Entrapment of Probiotics in Water Extractable Arabinoxylan Gels: Rheological and Microstructural Characterization
Authors: Morales-Ortega Adriana , Carvajal-Millan Elizabeth , Brown-Bojorquez Francisco , Rascón-Chu Agustín , Torres-Chavez Patricia , López-Franco Yolanda , Lizardi-Mendoza Jaime , Martínez-López Ana , Campa-Mada Alma
Published: March 2014

Due to their porous structure, aqueous environment and dietary fiber nature arabinoxylan (AX) gels could have potential applications for colon-specific therapeutic molecule delivery. In addition, prebiotic and health related effects of AX have been previously demonstrated. It has been also reported that cross-linked AX can be degraded by bacteria from the intestinal microbiota. However, AX gels have not been abundantly studied as carrier systems and there is no information available concerning their capability to entrap cells. In this regard, probiotic bacteria such as Bifidobacterium longum have been the focus of intense research activity lately. The objective of this research was to investigate the entrapment of probiotic B. longum in AX gels. AX solution at 2% (w/v) containing B. longum (1 × 107 CFU/cm) formed gels induced by laccase as cross-linking agent. The entrapment of B. longum decreased gel elasticity from 31 to 23 Pa, probably by affecting the physical interactions taking place between WEAX chains. Images of AX gels containing B. longum viewed under a scanning electron microscope show the gel network with the bacterial cells entrapped inside. The microstructure of these gels resembles that of an imperfect honeycomb. The results suggest that AX gels can be potential candidates for the entrapment of probiotics.
Synthesis and Biological Activity of Some Bile Acid-Based Camptothecin Analogues
Authors: Li Xingnuo , Zhao Tengfei , Cheng Dongping , Chu Chu , Tong Shengqiang , Yan Jizong , Li Qing-Yong
Published: March 2014

In an effort to decrease the toxicity of camptothecin (CPT) and improve selectivity for hepatoma and colon cancer cells, bile acid groups were introduced into the CPT 20 or 10 positions, resulting in the preparation of sixteen novel CPT-bile acid analogues. The compounds in which a bile acid group was introduced at the 20-hydroxyl group of CPT showed better cytotoxic selectivity for human hepatoma and colon cancer cells than for human breast cancer cells. Fluorescence microscopy analysis demonstrated that one compound (E2) entered human hepatoma cells more effectively than it did human breast cancer cells. Compound G4 exhibited the best anti-tumour activity in vivo. These results suggested that introduction of a bile acid group at the 20-position of CPT could decrease toxicity in vivo and improve selectivity for hepatoma cells.
Impact of Polyphenol Antioxidants on Cycling Performance and Cardiovascular Function
Authors: Trinity Joel , Pahnke Matthew , Trombold Justin , Coyle Edward
Published: March 2014

This investigation sought to determine if supplementation with polyphenol antioxidant (PA) improves exercise performance in the heat (31.5 °C, 55% RH) by altering the cardiovascular and thermoregulatory responses to exercise. Twelve endurance trained athletes ingested PA or placebo (PLAC) for 7 days. Consecutive days of exercise testing were performed at the end of the supplementation periods. Cardiovascular and thermoregulatory measures were made during exercise. Performance, as measured by a 10 min time trial (TT) following 50 min of moderate intensity cycling, was not different between treatments (PLAC: 292 ± 33 W and PA: 279 ± 38 W, p = 0.12). Gross efficiency, blood lactate, maximal neuromuscular power, and ratings of perceived exertion were also not different between treatments. Similarly, performance on the second day of testing, as assessed by time to fatigue at maximal oxygen consumption, was not different between treatments (PLAC; 377 ± 117 s vs. PA; 364 ± 128 s, p = 0.61). Cardiovascular and thermoregulatory responses to exercise were not different between treatments on either day of exercise testing. Polyphenol antioxidant supplementation had no impact on exercise performance and did not alter the cardiovascular or thermoregulatory responses to exercise in the heat.
Application of On-Site Wastewater Treatment in Ireland and Perspectives on Its Sustainability
Authors: Dubber Donata , Gill Laurence
Published: March 2014

The wastewater of one third of Ireland’s population is treated on-site using domestic treatment systems (DWWTSs) that usually consist of a septic tank and soil attenuation system. Within the past four years, the legislative framework for these systems has undergone a major change with a registration and inspection regime being introduced to identify legacy sites that will require remediation work, particularly in areas of the country underlain by subsoils of very low permeability. Against this background this study aims to assess the overall sustainability of existing DWWTSs as well as alternative treatment and disposal options. The results show that main CO2eq emissions are from the methane production in septic tanks. The reduced methane production in mechanically aerated secondary treatment systems was found to counterbalance the related emissions due to the additional energy requirements. In contrast, septic tank systems have the lowest construction and operational costs representing the most economically sustainable solution. Pressurised disposal systems are slightly more expensive but have the potential to reduce environmental impact on surface water and reduce greenhouse gas emissions. Clustered decentralised treatment solutions could be environmentally and economically sustainable but ownership, management and related financial and legal issues will need to be addressed and developed.
Single-Dose Intranasal Treatment with DEF201 (Adenovirus Vectored Consensus Interferon) Prevents Lethal Disease Due to Rift Valley Fever Virus Challenge
Authors: Gowen Brian , Ennis Jane , Bailey Kevin , Vest Zachary , Scharton Dionna , Sefing Eric , Turner Jeffrey
Published: March 2014

Rift Valley fever virus (RVFV) causes severe disease in humans and ungulates. The virus can be transmitted by mosquitoes, direct contact with infected tissues or fluids, or aerosol, making it a significant biological threat for which there is no approved vaccine or therapeutic. Herein we describe the evaluation of DEF201, an adenovirus-vectored interferon alpha which addresses the limitations of recombinant interferon alpha protein (cost, short half-life), as a pre- and post-exposure treatment in a lethal hamster RVFV challenge model. DEF201 was delivered intranasally to stimulate mucosal immunity and effectively bypass any pre-existing immunity to the vector. Complete protection against RVFV infection was observed from a single dose of DEF201 administered one or seven days prior to challenge while all control animals succumbed within three days of infection. Efficacy of treatment administered two weeks prior to challenge was limited. Post‑exposure, DEF201 was able to confer significant protection when dosed at 30 min or 6 h, but not at 24 h post-RVFV challenge. Protection was associated with reductions in serum and tissue viral loads. Our findings suggest that DEF201 may be a useful countermeasure against RVFV infection and further demonstrates its broad-spectrum capacity to stimulate single dose protective immunity.
A Role for CD81 and Hepatitis C Virus in Hepatoma Mobility
Authors: Brimacombe Claire , Wilson Garrick , Hübscher Stefan , McKeating Jane , Farquhar Michelle
Published: March 2014

Tetraspanins are a family of small proteins that interact with themselves, host transmembrane and cytosolic proteins to form tetraspanin enriched microdomains (TEMs) that regulate important cellular functions. Several tetraspanin family members are linked to tumorigenesis. Hepatocellular carcinoma (HCC) is an increasing global health burden, in part due to the increasing prevalence of hepatitis C virus (HCV) associated HCC. The tetraspanin CD81 is an essential receptor for HCV, however, its role in hepatoma biology is uncertain. We demonstrate that antibody engagement of CD81 promotes hepatoma spread, which is limited by HCV infection, in an actin-dependent manner and identify an essential role for the C-terminal interaction with Ezrin-Radixin-Moesin (ERM) proteins in this process. We show enhanced hepatoma migration and invasion following expression of CD81 and a reduction in invasive potential upon CD81 silencing. In addition, we reveal poorly differentiated HCC express significantly higher levels of CD81 compared to adjacent non-tumor tissue. In summary, these data support a role for CD81 in regulating hepatoma mobility and propose CD81 as a tumour promoter.
Submarine Groundwater Discharge at a Single Spot Location: Evaluation of Different Detection Approaches
Authors: Schubert Michael , Scholten Jan , Schmidt Axel , Comanducci Jean , Pham Mai , Mallast Ulf , Knoeller Kay
Published: March 2014

Submarine groundwater discharge (SGD) into the ocean is of general interest because it acts as vehicle for the transport of dissolved contaminants and/or nutrients into the coastal sea and because it may be accompanied by the loss of significant volumes of freshwater. Due to the large-scale and long-term nature of the related hydrological processes, environmental tracers are required for SGD investigation. The water parameters of electrical conductivity and temperature, the naturally occurring radionuclides of radon and radium as well as the stable water isotopes 18O and 2H have proven in previous studies their general suitability for the detection and quantification of SGD. However, individual hydrogeological settings require a site-specific application of this “tool box”. This study evaluates and compares the applicability of the abovementioned tracers for investigating SGD from a distinct submarine source in a karst environment at Cabbé, southern France. The specific advantages and disadvantages of each individual parameter under the given hydrogeological conditions are discussed. Radon appeared to be the most suitable environmental tracer in the site specific context. The water temperature was less reliable due to the little temperature difference between seawater and groundwater and since the diurnal variation of the air temperature masks potential SGD signals. Radium isotopes are less applicable in the studied region due to the lack of a well-developed subterranean estuary. The stable water isotopes showed results consistent with the salinity and radon data; however, the significantly higher effort required for stable isotope analyses is disadvantageous. A multi-temporal thermal remote sensing approach proved to be a powerful tool for initial SGD surveying.
Spatial Distribution of Fecal Indicator Bacteria in Groundwater beneath Two Large On-Site Wastewater Treatment Systems
Authors: Humphrey Charles , O'Driscoll Michael , Harris Jonathan
Published: March 2014

On-site wastewater treatment systems (OWS) are a common means of wastewater treatment in coastal North Carolina, where the soils are sandy and groundwater is relatively close to the surface (<5 m). Wastewater contains elevated concentrations of pathogenic microorganisms that can contaminate groundwater and surface water if OWS are not operating efficiently and distributing wastewater equally to all drainfield trenches. The objectives of this study were to compare the distribution of fecal indicator bacteria (FIB) in groundwater beneath a large low-pressure pipe (LPP) OWS and a large pump to distribution box system, and to determine the effectiveness of the systems in reducing FIB including total coliform, E. coli, and enterococci. Monitoring wells were installed at the fronts and ends of the drainfields for sample collection. Groundwater beneath the LPP had a more homogeneous spatial distribution of E. coli and enterococci concentrations and the specific conductivity of groundwater was also more uniform relative to groundwater beneath the distribution box system. Both systems were effective (>99%) at reducing FIB concentrations before discharge to groundwater. Results indicate that the LPP did enhance the distribution of FIB in groundwater beneath the drainfield area relative to the pump to distribution box system. Although the LPP system had a vadose zone over 2 m thinner than the pump to distribution box system, FIB treatment was similar. Enterococci was the most resilient FIB of the three tested.
Genetics of Tillering in Rice and Barley
Authors: Hussien Ahmed , Tavakol Elahe , Horner David S. , Muñoz‐Amatriaín María , Muehlbauer Gary J. , Rossini Laura
Published: March 2014

Tillering, or the production of lateral branches (i.e., culms), is an important agronomic trait that determines shoot architecture and grain production in grasses. Shoot architecture is based on the actions of the apical and axillary meristems (AXMs). The shoot apical meristem (SAM) produces all aboveground organs, including AXMs, leaves, stems, and inflorescences. In grasses like rice (Oryza sativa L.) and barley (Hordeum vulgare L.), vegetative AXMs form in the leaf axil of lower leaves of the plant and produce tillers (branches). Tiller development is characterized by three stages, including (i) AXM initiation, (ii) bud development, and (iii) outgrowth of the axillary bud into a tiller. Each tiller has the potential to produce a seed‐bearing inflorescence and, hence, increase yield. However, a balance between number and vigor of tillers is required, as unproductive tillers consume nutrients and can lead to a decreased grain production. Because of its agronomic and biological importance, tillering has been widely studied, and numerous works demonstrate that the control of AXM initiation, bud development, and tillering in the grasses is via a suite of genes, hormones, and environmental conditions. In this review, we describe the genes and hormones that control tillering in two key cereal crops, rice and barley. In addition, we discuss how the development of new genomics tools and approaches, coupled with the synteny between the rice and barley genomes, are accelerating the isolation of barley genes underlying tillering phenotypes.
Marker‐Assisted Backcrossing to Introgress Resistance to Fusarium Wilt Race 1 and Ascochyta Blight in C 214, an Elite Cultivar of Chickpea
Authors: Varshney R. K. , Mohan S. M. , Gaur P. M. , Chamarthi S. K. , Singh V. K. , Srinivasan S. , Swapna N. , Sharma M. , Pande S. , Singh S. , Kaur L.
Published: March 2014

Fusarium wilt (FW) and Ascochyta blight (AB) are two major constraints to chickpea (Cicer arietinum L.) production. Therefore, two parallel marker‐assisted backcrossing (MABC) programs by targeting foc1 locus and two quantitative trait loci (QTL) regions, ABQTL‐I and ABQTL‐II, were undertaken to introgress resistance to FW and AB, respectively, in C 214, an elite cultivar of chickpea. In the case of FW, foreground selection (FGS) was conducted with six markers (TR19, TA194, TAA60, GA16, TA110, and TS82) linked to foc1 in the cross C 214 × WR 315 (FW‐resistant). On the other hand, eight markers (TA194, TR58, TS82, GA16, SCY17, TA130, TA2, and GAA47) linked with ABQTL‐I and ABQTL‐II were used in the case of AB by deploying C 214 × ILC 3279 (AB‐resistant) cross. Background selection (BGS) in both crosses was employed with evenly distributed 40 (C 214 × WR 315) to 43 (C 214 × ILC 3279) SSR markers in the chickpea genome to select plant(s) with higher recurrent parent genome (RPG) recovery. By using three backcrosses and three rounds of selfing, 22 BC3F4 lines were generated for C 214 × WR 315 cross and 14 MABC lines for C 214 × ILC 3279 cross. Phenotyping of these lines has identified three resistant lines (with 92.7–95.2% RPG) to race 1 of FW, and seven resistant lines (with 81.7–85.40% RPG) to AB that may be tested for yield and other agronomic traits under multilocation trials for possible release and cultivation.
Weight-Aware Multidimensional Advertising for TV Programs
Authors: Wang Jianmin , Liu Yi , Xie Ting , Zuo Yuchu
Published: March 2014

Given ongoing developments in the digital television industry, the consumption habits of consumers are substantially influenced by advertisements, which become the main revenue source for TV broadcasters. Therefore, the effective deployment of advertisements is necessary. Digital television is a thriving sector and the number of channels continues to increase, so that the various dimension information of data on electronic programming guides overwhelm the advertisement recommendation systems for TV programs. In this paper, considering the viewing scenarios the users viewed in the different types of television program, the authors present a weight-aware multidimensional model approach that focuses on the different weights of advertisement or program content parameters and their interrelationship. Furthermore this study is the first attempt at applying the approach to advertisement recommendation. The authors introduce an empirical measure for obtaining the weight values of dimensions, and present the similarity measure model, which enhances accuracy and convergence in advertisement recommendations. The experiment and evaluation show that our approach outperforms the previously reported fuzzy clustering technique.
Integrated Network Topological Control and Key Management for Securing Wireless Sensor Networks
Authors: Kumar S. , Nagarajan N.
Published: March 2014

Wireless Sensor Networks (WSN) have appeared as one of the important fields at present due to their low-cost, self-organizing behavior, sensing ability in inconsiderate environments, and their huge application extent. One of the most challenging topics in relay network is security. The existing Network Topology Acquisition (NTA) processes for non transparent mode relay networks are not effective in providing the security features. At the same time, it is critical to provide privacy and validation in order to prevent information from relay networks. In the proposed system, key management is provided for privacy and simultaneously, validation for security measure is offered with relay nodes. Incorporated Network Topological control and Key management (INTK) scheme on the relay network provide the effective routing and security solution. INTK Scheme encompasses the incorporation of security and routing, active security, robust re-keying, low complexity and the multiple intensity of encrypt features in relay networks. Security scheme is designed with consideration of the multi cluster based topology control through a multiple intensity keying. The proposed security scheme has low communication energy due to its multi cluster-key executive. INTK Scheme acquires results on 4.5% improved security level with lesser execution time and communication energy consumption. A variety of numerical parameters are computed using ns2 simulator on existing NTA processes for non transparent mode relay networks and proposed INTK Scheme. INTK is highly realistic because it is intended to incorporate routing layer and security protocol without sacrificing energy.
Emotional Competence and Affective Computing as Factors of Formation of Individual and Social Identity
Authors: Curatola Annamaria , Corona Felice , Meduri Carmelo Francesco , Cozzarelli Carla
Published: March 2014

This experience of psycho-emotional education is part of more extensive international researches based on the hypothesis that the “emotional experience”, if inserted in the daily conduct of the school curriculum, especially in the nursery school one, represents an excellent training opportunity, since it fosters the learners' best perception of the self, thus strengthening their expressive and communicative attitude. On the basis of Social and Emotional Learning (SEL) principles and inspired by a previous experience carried out by the Department of Human Science for training, this experimental project has been put into practice by some nursery schools in RC, thus providing very interesting data for the confirmation of the hypothesis. It has been also developed a study on the affective computing and the cognitive computing pursuing a new perspective that exceeds the traditional vision of what is defined as artificial intelligence and analyzes intelligence and aspects of perceptions, often neglected, with a methodological approach considering the emotional processes as important as the cognitive ones.
Study of Infrared Thermograph NDT of Airplane Composites
Authors: Chen Heng , Lei Teng Fei , Liu Ying , Wang Xu
Published: March 2014

In this paper, infrared thermal wave NDT techniques are used for aircraft composites. After the infrared image is sharpened and the temperature field is analyzed, aircraft composite material defects can be diagnosed. Experiments show that the infrared NDT techniques can detect defects in aircraft composite image. Images and first-order differential image can be presented more clearly outline the process and temperature variations. Defect size and depth can also be measured. The best experiments are designed for different materials. After several experiments of the precise temperature calibration can be further studied. Defects can be interpreted intelligent.
The Research of Real-Time Monitoring System of All-Weather Fatigue Driving
Authors: Zhao Wei , Huang Wen Juan , Niu Jing Xia , Yao Hong Ping
Published: March 2014

In this paper, a real-time monitoring system of all-weather fatigue driving which is based on DSP (TMS320DM643) is introduced. The method of regional area combining the skin color model, can quickly locate the drivers face. The paper also presents the judgment of eye state, the fetch of fatigue parameters (PERCLOS, ECT and EBF), and the general method for the determination of fatigue degree. The system has very strong using value, and practical significance.
Study of Intelligent Fault Diagnosis Method for Turbo-Generator Unit Based on Support Vector Machine and Knowledge
Authors: Deng Xiao Wen , Gu Yu Jiong , Fang Li Ping , Ren Zhao Xu , Han Ya Peng
Published: March 2014

For the low efficiency and poor accuracy of turbo-generator Unit s fault diagnosis, this paper divided the common 18 kinds of vibration fault into four categories, and took advantage of support vector machine to distinguish the fault cluster for early fault diagnosis according to the characteristics of vibration signal spectrum. For different fault cluster, different fault pattern recognition model was established. With the use of certain symptom group and weighted fuzzy logic, this article engaged in knowledge reasoning to obtain the specific fault recognition mode. Besides, the searching methods of fault cause, fault influence and troubleshooting measures in the knowledge base were proposed, which made the diagnosis process more meticulous and comprehensive. Case analysis shows that it is feasible to use this method to develop a system for intelligent fault diagnosis of turbo-generator unit, which is valuable for further study in more depth.
Study on Measurement of Six-DOF Force/Torque for Loading Experiment on Heavy Load Equipment
Authors: Lu Yun , Li Wei Jia , Tian Wen Zhuo , Zhou Kai
Published: March 2014

According to the requirements of fatigue test of aircraft cabin, large engine and mining machinery for heavy-duty six dimensional generalized force sensors, a new method of using piezoelectric quartz as force-sensitive element on the basis of the theory of heavy force division and equivalent capacity compression is proposed in this study. Furthermore, in order to minimize the force-coupling for the six-dimension force sensor, the optimization objective function is devised and the calculation method for decoupling is also proposed, on the basis of which, the generalized force sensor with high sensitivity, high stiffness, high linearity but light in its weight is designed. At last, the static calibration experiment is carried out the result shows that the sensor has a good ability of heavy force division and capacity for equivalent compression it can be well used in large tonnage six component force loading device and fatigue test system.
Research on Parallel Test Task Scheduling Based on Improved Genetic Algorithm and Petri Net
Authors: Chen Pei Pei , Qiu Bao Mei , Ba Hao
Published: March 2014

Parallel test task scheduling is always complex and difficult to optimize. Aiming at this problem, an improved Genetic Simulated Annealing Algorithm based on Petri net is posed to. At first, a Petri net model is established for the system, then the transition sequence is used as task scheduling sequence set path. Genetic Algorithm is introduced in order to get the optimal path. In the process of search, the sequence will be able to stimulate changes as chromosomes, selection, crossover and mutation. In order to prevent premature convergence of the algorithm appears, into the phenomenon of local optimal solution, the individual needs simulated annealing operation, and finally, we can get the shortest time to complete the test task scheduling sequence.
Data Collision Detection Technology of the Electronic Countermeasures' Simulation Scenario
Authors: Bi Xue Jun , Mu Ting Ting , Wang Xiao Zhen
Published: March 2014

In order to solve the problem of data collision in the electronic countermeasures simulation scenario edition, a scenario data collision detecting algorithm based on productive inferring, whats more, a scenario data collision detection system for electronic countermeasures simulation is designed and actualized. This system can be integrated into electronic countermeasures simulation system regarded as a component, to check the scenario data and ensure the datas rationality.
The Use of C++ and ATLAS Language in Auto-Test System
Authors: Liu Yu , Wang Feng Qin , Lv Xiao Feng
Published: March 2014

Both C++ and ATLAS are two kinds of developing languages widly used in the development of auto-test systems. The auto-test programs developed by them are powerful and portable.We can achieve it by four steps.They are hardware system building,ATE modeling, driver development and test program developing.Some function that we can realize can be developed by C++ according to the rule.
Water Quality Soft-Sensing Model of Sewage Treatment Process Combined with the Mechanism and RBF
Authors: Pian Jin Xiang , Wang Zhen , Li Jie Jia , Zhang Rui
Published: March 2014

As the activated sludge sewage treatment process has strong non-linearity, uncertainty, time-varying and other complex characteristics, it is difficult to establish water quality soft-sensing model of sewage treatment process. This paper studies the present situation of detection technology of sewage quality COD, and summarizes the problems of the existing water quality soft-sensing model. Adopting the technology of mechanism modeling and RBF, establishes water quality soft-sensing model to adapt changes in a wide range of conditions, and has high precision structure.
Study on the Method to Simulate the Service Life of Vehicle Based on Biological Population
Authors: Chi Ya Li , Liu Jun Min , Song Chuan Ping
Published: March 2014

Based on the similarity between the regularity for change of technical condition of vehicle and biological population, the paper builds a simulation model on the overall technical state of system vehicle, and hence sets up a state transition equation of vehicle service life and a transition equation of vehicle accumulated mileage to measure the number of retired vehicles in a system and study when the vehicle is retired and the quantity of retired vehicles. In the end, the paper verifies the practicability of this method through a case.
Optimization of Model Adaption Based on Multi-Samples in Hot Strip Mill
Authors: Peng Wen , Ma Geng Sheng , Bu He Nan , Cao Jian Zhao , Zhang Dian Hua
Published: March 2014

In order to improve the thickness precision, the model adaption method is of great concern which is a necessary component in the thickness control system. The sample concept is first taken into the model adaption in hot tandem mill, from which the learning coefficients are updated by a series of samples. Comparing to the single sample in traditional method, the new method can consider the variance in the length direction. And the source data is more comprehensive, the robustness is increased with flexible proportion coefficients. The thickness precision in stable production process is enhanced to 35μm. On-line result shows practical value and on-line application prospect.
Modeling and Control Strategy of Series Hybrid Electric Vehicles
Authors: Zhang Liang , Jiao Bin , Li Lei
Published: March 2014

The modeling method and control strategy for series hybrid electric vehicles were presented in this paper. Firstly, the system structure and operation principles are discussed systematically; and then a control strategy is proposed based on the modeling of powertrain. Control strategy focus on the multi-modes switch logic and power distribution. In the last part of this paper, the simulation made in MATLAB/Simulink was introduced, which results indicate that the model and control strategy are correct.
Papermaking Process Basis Weight Control Based on PIDDMC Optimal Algorithm
Authors: Xiao Zhong Jun
Published: March 2014

In the papermaking actual process basis weight of paper sheet often has properties of nonlinearity, time-varying, uncertainty and larger-time delay. With the improvement of control requirements, traditional PID control is not ideal, and DMC control depends on the process model which needs the actual feedback information to complete repeated online optimization. So a novel PIDDMC combined optimal algorithm is proposed to obtain the satisfied performance index. Simulation is analyzed to show that the algorithm can be well performed with high accuracy and stability.
Research on Maintenance Strategy of Coal Mining Vehicle Based on RCM
Authors: Ma Xian Min , Wu Xiao Rui , Zhang Yong Qiang
Published: March 2014

The reliability analysis of the coal mining vehicle is expounded by the application of Reliability Centered Maintenance (RCM). According to RCM, maintenance mode and service period of the equipment are determined after a logical judgment and effective analysis of equipment reliability and malfunction results. Corresponding maintenance strategies are established. It is estimated that the strategy may be further applied in equipment maintenance strategy.
Dynamic Analysis Helicopter Flight Simulator
Authors: Liu Xiao Feng , Yu Jing Wei , Wang Hai Tao , Fang Zhao Wen
Published: March 2014

For helicopter structural characteristics, this article focuses on the helicopter to take off, hover and other state aerodynamic analysis, the establishment of the fuselage-landing gear dynamics model; while the helicopter simulator simulation system are described, and the kinetic model was built simulation analysis, simulation results and the actual flight conditions consistent, indicating that the model is correct, there is a certain reference value.
Control Strategy in the Flux Weakening Region of Interior Permanent Magnet Synchronous Machine Used in HEV
Authors: Liu Xiao Hong , Zhang You Tong
Published: March 2014

An new control strategy for interior permanent magnet synchronous machine (IPMSM) which is the most popular motor used in HEV is proposed and investigated, which features is increasing the reference flux weakening voltage to improve efficiency in flux weakening region . Modeling results show that the proposed strategy can achieve the same dynamic and steady state torque performance with higher reference flux weakening voltage, which means higher efficiency.
The Research of Centralized Robot-Soccer Decision-Making System Based on Three-Layered Hierarchical Model
Authors: Zhao Wei , Huang Wen Juan , Yao Hong Ping , Gao Jian Yu
Published: March 2014

This paper describes robot soccer, it studies the organizational model of the soccer robot, and centralized decision-making system is analyzed. With the deep research of the three-layered hierarchical decision-making model on the basis of decision-making, management and executive, the paper achieves the basic control of the robot.
The Synchronization Control of a Series Hybrid Power Forklift System
Authors: Liu Dian Ting , Ding Wen Xin
Published: March 2014

With the improvement of human environment protection consciousness, and at the situation of the high price of crude oil.Hybrid electric vehicle has gradually become the development trend of the future.Synchronization of power supply of the generator and battery is a necessary condition for forklift work stability. The system outputs SPWM signal by single chip microcomputer AT89C51 as the core chip,implementation of the trace function of frequence and phase,implementation of the defensive function of under-voltage and over-current.The circuitry electrical system is simple and flexible control.Hybrid forklift is verified its effectiveness by simulation analysis through multisim and matlab.Implementation of synchronous control of hybrid systems.
Modeling and Simulation of Urban Arterial Traffic Signal Coordinated Control
Authors: Li Wei , Bi Xin , Cao Yun Xia , Du Jin Song
Published: March 2014

Traffic congestion is a major concern for many cities throughout the world. Developing a sophisticated traffic monitoring and control system would result in an effective solution to this problem. In order to reduce traffic delay, a novel urban arterial traffic signal coordinated control method is presented. The total delay of downstream and upstream vehicles is considered and the function describing the relationship between vehicles delay and signal offset among intersections is established. Finally, comparing the performance of traffic signal under method proposed in this paper with the traditional isolated traffic signal control method, the microscopic simulation results show that the method proposed in this paper has better performance in the aspect of reducing the vehicles delay. The offset model is tested in a simulation environment consisting of a core area of three intersections. It can be concluded that the proposed method is much more effective in relieving oversaturation in a network than the isolated intersection control strategy.
Design and Simulation of an Improved Five Redundancy GNC System Architecture
Authors: Lin Yue , Gao Ya Nan , Fan Song Tao , Xu Chun
Published: March 2014

Aerospace plane, the next generation manned spacecraft has the characteristics of high reliability and high security. Therefore, a five modular redundancy byzantine fault tolerant architecture is propose for the guidance, navigation and control (GNC) system. This architecture can give the system characteristic of double fault resilience, and is also suitable for solving Byzantine general problem. A semi-physical simulation is done, which is based on 1553B data bus and VxWorks operating system. The simulation result has verified the fault tolerant architecture and feasibility of the system implementation.
Tunable Stiffness and Damping Vibration Control Strategy Based on Magnetorheological Elastomer Isolator
Authors: Zheng Hui Ming , Dong Dong Dong , Zhu Lu Hua
Published: March 2014

The combined variable stiffness and damping on-off control strategy is investigated using a magnetorheological elastomer (MRE) isolator. A one-degree-of-freedom system has been adopted to assess the efficiency of different control strategies under sinusoidal and random and pulse excitations. The obtained results illustrate that a single tunable stiffness control with maximal damping values under both excitations can simultaneously performs better control of displacement than using minimal damping if the relative displacement and relative velocity of load are in contrary directions . Moreover, on-off variable stiffness control plays a more important role than damping control, therefore it is feasible to only control magnetic field to change MRE elastic and damping property for simplicity.
Design of Distributed Synthesis Power Supply for Self-Propelled Gun's Electromechanical Laboratory Equipment
Authors: Liao Xue Bing , Cui Qing Bin , Lei Jie , Luo Hong Fei
Published: March 2014

In this paper, a new design of integrated power is presented, which uses a modular structure, distributed control system. According to the technical requirements of mechanical and electrical test equipment for the power system, the BCT of the switching power supply is used. The design of DC power is described in detail in this paper. The trial operation proves: this integrated power is high common, high stability and high integration.
Design of Controlled Fire Extinguisher Filling Pretreatment Equipment of Self-Propelled Artillery
Authors: Liao Xue Bing , Zhao Hai Yan , Peng Lei , Huang Li Juan
Published: March 2014

According to the technical requirements of controlled fire extinguisher filling pretreatment of self-propelled artillery, in this paper, we use the method of principles tunnel to control the air flow, combined with multi-parameter self-tuning fuzzy PID control, different models of controlled fire bottle filling pretreated at the same time are achieved, and the adaptive capacity of controlled fire extinguishers pretreatment equipment is improved. After the trial, the device has high synthesis, good versatility and high stability.
Research and Development of the Cavity Mold CAD/CAM System Based on UG
Authors: Jia Wei Jie
Published: March 2014

As an important part of the computer information technology, computer-aided design and manufacturing (CAD/CAM) is a pivotal technology to realize manufacturing automation and to promote the technical progress of enterprises and to enhance technical innovative ability and the competitive ability of enterprise. At present, the development and application of CAD/CAM has become a crucial symbol of the technological and industrial modernization of a country. CAD/CAM is an epoch-making reform for traditional manufacturing. Mold is one of the industries that can exert the most benefit of CAD/CAM. Mold CAD/CAM is a crucial technology for traditional manufacturing. It is the system engineering with high-tech and high efficiency. It provides an effective auxiliary tool for enterprise. The engineers can improve product performance, mold structure, manufacturing technology and CNC machining and production procedure with the help of computer. It has become the consensus of the mold industry that mold CAD/CAM can shorten the manufacturing cycle, reduce production costs and improve product quality.
Research on Robust Control of Anti-Locked Braking System of Vehicles
Authors: Yan Yun Bing , Wu Hao , Wang Wei Qiang
Published: March 2014

It is necessary to study the stability and robustness of the anti-locked braking system (ABS) of vehicles because there are parameter perturbations and un-modeled dynamic features in the system. On the basis of the ABS model and the mixed sensitivity method, a robust control strategy for ABS is put forward and the H robust controller is designed in this paper. The simulation of the process of ABS shows that the robust control system can keep stable and is effective on decreasing the undesirable influence of the fluctuation of parameter such as load, brake performance coefficient and road condition. Furthermore, the tire slip ratio can be effectively controlled around the desired value, and the braking performance can be obviously improved.
Design and Characteristics of a New Thin Cross Type Rotary Ultrasonic Motor
Authors: Zhou Xiang Yu , Chen Wei Shan , Liu Jun Kao
Published: March 2014

A new thin cross type rotary ultrasonic motor has been proposed for further study of this type motors characteristics. As a stator, eight semi-circular piezoelectric ceramics were attached on the upper and bottom sides of a thin hollow cross brass plate. The stator was excited by two sinusoidal voltages with a phase difference of 90° and elliptical trajectories were generated at the contact points to drive a shaft rotor. The driving principle of the motor was illustrated by degenerating two orthogonal in plane vibration modes. Based on FEM analysis, the vibration shapes and frequencies of operation modes were simulated and the relationships between the maximum displacements of the contact points and various motor parameters were obtained. A prototype was fabricated and characteristics of the motor were measured. The relationship among rotation speed, pre-pressure and voltage are no-linear. The maximum rotation speed with no load was 22.9 rpm. The merits and shortcomings of the thin cross type rotary ultrasonic motor were discussed.
A Polynomially Solvable Case for Solving Crane Scheduling Problem in Batch Annealing Process
Authors: Xie Xie , Kong Xiang Yu , Zheng Yong Yue , Li Yan Ping
Published: March 2014

This paper investigates a special case for scheduling of the multi-crane operations in batch annealing process in an iron and steel enterprise so that the completion time of the last annealed coil (makespan) is minimized. Additional no-delay and no-buffer constraints for taking fully advantage of machines are considered. No-delay constraints for machine unloading means technological requires fixed heating time and cooling time that once the heating (cooling) is completed, the furnace (cooler) must be unloaded immediately without any delay by crane. No-buffer constraints for machine unloading means the time gap between the unloading time of one machine for one job and its start time on the next job is exactly equal to the corresponding transportation time. We prove that this problem can be solved optimally in polynomial time where the starting time and ending time of every possible crane movement are formulated.
Improving the Degradation of Digital Logistic Map via External Control
Authors: Deng Ya Shuang , Hu Han Ping
Published: March 2014

In this paper, the degradation problem of digital Logistic map is investigated. Chen chaotic system is applied to anti-control the digital Logistic map and a controller that combines an external state control along with a modular function is designed. Results of the experiments show that the external control can greatly improve the dynamical and statistical properties. Thus, it can be used in cryptography applications.
Overview of Particle Swarm Optimization
Authors: Zhu Yong Bin
Published: March 2014

Particle swarm optimization (PSO) is a new optimization algorithm based on swarm intelligence. Firstly, the paper briefly introduces the origin of the PSO, the basic algorithm and the basic model, but an overview on the basic principle of the algorithm and its improved algorithm is also provided. Then, the research status and the current application of the algorithm as well as the development direction in the future are reviewed.
The Gel'fand Approximations on Multivariate Functions in the Deterministic and Monte Carlo Settings
Authors: Long Jing Fan , Duan Li Qin , Ye Pei Xin
Published: March 2014

The concept of Gel'fand width plays an important role in the theory of information complexity and compressed sensing. In this paper, we study the approximation problems on the generalized Besov classesBΩΡ,θ in the norm of Lq by the Gel'fand methods in the deterministic and the Monte Carlo settings. Applying the Maiorov's discretization technique and some properties of pseudo-s-scale, we determine the asymptotic orders of this problem for some values of parameters p, q, θ.
A New Hybridization Method Using in NEAT
Authors: Duan Hong
Published: March 2014

In order to solve the problem that the speed of augmenting in NEAT algorithm is obviously not fast enough. We bring in the hybridization scheme. The scheme mainly gets new progeny chromosomes by combining parents ones. But it will probably bring in abnormal genes. As we record the time stamp for every gene, we can easily ensure that those genes are the same, so that we can simply get those completely reasonable hybrid chromosomes. We mainly use the time stamp of every gene to record information and make progeny chromosomes.
Illumination Uniformity Research Based on Quasi-Sine Particle Swarm Optimization
Authors: Yan Jun Cen , Che Ying
Published: March 2014

This text aims at non-linear optimizing problem of illumination uniformity, and puts forward the method to improve illumination uniformity based on Quasi-sine Particle Swarm Optimization. This paper expatiates the basic principle of arithmetic and its carrying steps firstly. The target function and the orientation degree function are given. The result of optimizing target function shows this arithmetic makes constringency holistically and obtained target illumination by the arithmetic is well-proportioned.
Computer Simulation and Implementation in Chinese Calligraphy Dry Brush
Authors: Pan Hong Bin
Published: March 2014

It is a new important research and applied field to create art by using computer technology. This article is primarily targeted to introduce a method which applies relevant theories and technology of Graphics and Image Processing, combined with the relevant skills and technique of Chinese painting and calligraphy to make a primary study on the simulation in writing strokes of Chinese withered pen calligraphy in the Digital Pen Simulated System of Painting and Calligraphy, and provides a pen pressure-sensitive mathematic model for the writing brush based on the mechanics principle. And also, we not only consider a lot of results in many experiments and the actual requirements of calligraphers and painters, but also characters of calligraphy and the writing strokes changes with the movement of brush to study the model of single cycle digital pen and the model of multi cycle withered pen, and make the bottom color of withered pen realized with Visual C++ 6.0.