bluuebunny/crossref_metadata_2025 huggingface dataset:
Barriers to Referral in Swaziland: Perceptions from Providers and Clients of a System under Stress
Authors: Macintyre Kate CE , Littrell Megan , Hotchkiss David R. , Mndzebele Sibongile , Nkambule Rejoice , Malima Batsile , Gumbi Sikhomba , Dhlamini Thembeyena , Brown Lisanne , Kemerer Verne
Published: December 2011

In Swaziland, where one in four adults is HIV positive, identifying and addressing barriers to a strong referral system is critical to ensure continuity of care for HIV positive individuals. This study examines the referral system from the perspectives of health providers, community health workers, traditional healers, clients seeking facility‐based care, and managers of private health organizations. Structured and semi‐structured questionnaires were administered to 52 senior providers, 161 providers, and 307 clients in 52 health facilities. In 82 randomly selected communities, 81 traditional healers and 247 CHWs also participated. Staff from private health agencies providing HIV‐related care were also interviewed. Referral is commonly understood as sending clients to seek care at higher level facilities and is an individualized process dependent on various factors. Providers sending clients rarely hear back on any regular basis about those clients. Referrals and linkages for certain services are particularly weak including nutrition support, psychosocial support, palliative care and home‐based care. Many providers recommended that referral protocols with improved communication tools are needed and said referred clients should be given priority at referral‐receiving sites. Policy recommendations include: referral form redesign; formalizing or reforming the referral protocol; strengthening communication and linkages between community‐ and facility‐based providers; and improving patient‐flow at referral sites.
Review of Organ Shortage: Ethics, Law, and Pragmatism
Authors: Woodward Maggie
Published: December 2011

Organ Shortage: Ethics, Law, and Pragmatism gives a solid introduction to the broad issue of organ shortage worldwide. The authors examine barriers to increasing the supply of organs for transplant and explore policies to encourage donation, providing a comparison of regulations across numerous nations.
In the News
Authors: Nicogossian Arnauld
Published: December 2011

In the Editors' opinion, the materials summarized in this section have the potential for the development of health policies, standards, or for use in the daily practice and counseling of patients in preventative care. For additional information, readers might wish to visit Internet‐based medical news websites, some free of charge, such as PLoS Medicine, MedScape, Stone Heart, American College of Physicians, and the World Medical Association.
Extractive spectrophotometric determination of some α-adrenergic-antagonists in pure forms and in pharmaceutical formulations
Authors: El Sheikh , Esmail Nahla , Gouda Ayman , Basset Walid
Published: December 2011

A simple, rapid, and extractive spectrophotometric methods was developed for
the determination of some postsynaptic ?-1 adrenoreceptor antagonist;
doxazosin mesylate (DOX), terazosin (TRZ) and alfuzosine HCl (ALF) in pure
forms and pharmaceutical formulations. The developed methods are based on
the formation of yellow colored chloroform ion-pair complexes between the
basic nitrogen of the drugs and dyes, namely; bromocresol green (BCG),
bromothymol blue (BTB), methyl orange (MO) and alizarine red S (ARS), in
acidic buffer of pH range (3.0-5.0). The formed complexes were extracted
with chloroform or dichloromethane and measured at 418, 414, 425 and 426 nm
for DOX and at 419, 415, 425 and 428 for TRZ and at 418, 412, 421 and 427 nm
for ALF using BCG, BTB, MO and ARS, respectively. The analytical parameters
and their effects on the reported systems are investigated. Beer?s law was
obeyed in the range 1.0-130 ?g mL?1 with correlation coefficient (n = 6) ?
0.9991. The molar absorpitivity, Sandell sensitivity, detection and
quantification limits were also calculated. The composition of the ion
associates was found 1:1 by Job?s method. The proposed methods have been
applied successfully for the analysis of the studied drugs in pure forms and
in pharmaceutical formulations with percentage recoveries ranges from
99.18-100.61. The results of analysis were validated statistically. The
results were in good agreement and compared with those obtained with
reported methods.
The morphology of an unique population of Corynosoma strumosum (Acanthocephala, Polymorphidae) from the Caspian seal, Pusa caspica, in the land-locked Caspian Sea using SEM, with special notes on histopathology
Authors: Amin Omar , Heckmann Richard , Halajian Ali , El-Naggar Atif
Published: December 2011

Over 700 specimens of Corynosoma strumosum (Rudolphi, 1802) Lühe, 1904 were collected from one young male Caspian seal, Pusa caspica (Gmelin) in the southern land-locked Caspian Sea in April, 2009. Collected worms showed consistent variations from those reported by other observers using light microscopy especially in proboscis hook and trunk spine patterns. SEM images revealed many features that have not been previously reported including the shape and distribution of trunk spines, dorsoventral differences in proboscis hooks and their organization, the baldness of anterior proboscis, the rough egg topography, epidermal micropores, and variations in the female gonopore. This isolated population of C. strumosum from the land-locked Caspian Sea is distinguished from others reported from open waters elsewhere by the distribution of trunk spines, consistently smaller size of trunk and testes, larger eggs, and fewer proboscis hooks. Histopathological sections reveal the invasive path of worms in host tissue with damage to intestinal villi and worm encapsulation. Information obtained from SEM studies and histopathological sections is reported for the first time.
A new xenoma-forming microsporidium infecting intestinal tract of Atlantic bluefin tuna (Thunnus thynnus)
Authors: Mladineo Ivona , Lovy Jan
Published: December 2011

An undescribed species of Microsporidia Balbiani, 1882 was isolated from the muscularis mucosa of the intestinal mucosa of the reared Atlantic bluefin tuna (Thunnus thynnus). Transmission electron microscopy showed that the pyriform unikaryotic microsporidium, measuring 3.6 μm ± 0.08 in length and 1.8 μm ± 0.04 in width (inferred from TEM sections), had two layers of 14–17 coils of polar filament and a robust manubrium of the filament. No developmental stages were observed in xenoma. Phylogenetic analysis of the small subunit rRNA showed closest similarity with Kabatana spp. (88.4%), clustering the microsporidium together in a sister group with K. takedai and Kabatana sp. (JI-2008)/K. newberryi clade. While recognized Kabatana members show ovoid, rounded to pyriform spore, lack of sporophorous vesicle or xenoma, 3–10 coils of polar filament in 1–2 rows and are localized within cytoplasm of trunk muscle, the new species is markedly pyriform, xenoma forming, with many filament coils in 2 rows and parasitizing smooth intestinal muscle. Since morphological features were not typically congruent with any of Kabatana spp. so far described and molecular clustering indicated paraphyletic position within Kabatana clade, we suggest assigning described species to collective group Microsporidia, as Microsporidium milevae sp. nov., until more evidence permits potential formation of the new genus.
Rhabdias mcguirei sp. nov. (Nematoda, Rhabdiasidae) from the flying lizard, Draco spilopterus (Squamata, Agamidae) of the northern Philippines
Authors: Tkach Vasyl , Kuzmin Yuriy , Brown Rafe
Published: December 2011

Rhabdias mcguirei sp. nov., is described on the basis of specimens found in the lungs of northern Philippine flying lizards, Draco spilopterus (Reptilia, Agamidae) collected in Aurora province, Luzon Island, Philippines. It is characterized by a rounded oral opening, a buccal capsule consisting of anterior and posterior parts, and the shape of the cuticular inflation in the anterior part of the body: the cuticle is less inflated in the anterior-most part, with the inflation gradually thickening up to the level of the oesophageal-intestinal junction. The new species is differentiated from the 11 most closely related species of Rhabdias previously known from lizards.
A checklist of the Cymothoidae (Crustacea, Isopoda) recorded from Indian fishes
Authors: Trilles Jean-Paul , Ravichandran Samuthirapandian , Rameshkumar Ganapathy
Published: December 2011

A checklist of the parasitic Cymothoidae of Indian fishes was compiled from parasitological records published between 1783 and 2011. The checklist is arranged alphabetically, providing valid names, synonyms and authorities of the parasite species, as well as valid names and synonyms of the host fish, its capture sites, author(s) and date of published records. The host list consists of all parasites species listed under the host species. A total of 47 nominal species corresponding to 36 valid species are listed from 74 host species belonging to 34 families. Several parasites not identified to species level and parasite species without the host data or where the parasite was found not associated with a fish are also included in this checklist.
Genetic diversity among microsporidian isolates from the silkworm, Bombyx mori, as revealed by randomly amplified polymorphic DNA (RAPD) markers
Authors: Surendra Nath B. , Hassan W. , Nageswara Rao S. , Vijaya Prakash N. , Gupta S. , Madana Mohanan N. , Bajpai A.
Published: December 2011

Random amplification of polymorphic DNA polymerase chain reaction (RAPD-PCR) was carried out to assess the genetic diversity of five new microsporidian isolates viz., NIWB-11bp, NIWB-12n, NIWB-13md, NIWB-14b and NIWB-15mb identified from the silkworms. A type species, NIK-1s_mys was used as control for comparison. Differences in the spore shape, length and width were observed. Of the 30 decamer random primers tested, 22 primers gave repeatable RAPD profiles and yielded a total of 143 fragments, of which 78 were polymorphic (55%). The resulting data was used to derive genetic similarity values for constructing a dendrogram. The neighbour joining method based on Dice coefficients indicate a major cluster comprising NIK-1s_mys, NIWB-11bp and NIWB-12n, whereas NIWB-13md, NIWB-14b and NIWB-15mb appear to be different from each other as well from the major cluster mentioned above which includes the type species (NIK-1s_mys). Based on the reproducibility of RAPD profiles, we are able to identify these microsporidians as different isolates. The RAPD technique may be useful in detecting sources of infection of this economically important domestic insect.
Phenotypic differences of Haemonchus contortus from sheep and goats in the States of Perak and Kelantan, Peninsular Malaysia
Authors: Gharamah Abdullah , Rahman Wahab , Nor Siti
Published: December 2011

The large stomach worm, Haemonchus contortus is a highly pathogenic nematode parasite of sheep (Ovis aries) and goats (Capra hircus). It sucks blood and causes acute disease, anaemia and severe economic losses due to morbidity and mortality. This paper compares characteristics of surface cuticular ridges (synlophe) and morphometrics of total body length, cervical papillae, spicules, barbs, gubernaculum and vulvar flap morphology of H. contortus recovered in the two hosts from the States of Perak and Kelantan, Peninsular Malaysia. The morphological variation in H. contortus samples recovered from the two hosts in Kelantan was found to be higher than from Perak. A discriminant function, based on three measurements of the spicule, confirmed the identity of male worms in the two hosts as belonging to the same species H. contortus.
Microbiological Analysis of Some Raw Fish Samples
Authors: Das Monika , Hafiz Fauzia , Ahmed M Kawser , Parveen Sahana
Published: December 2011

Total load of bacteria, fungi and pathogenic microorganisms in muscle-and-skin samples of 12 different species of fish were analyzed. Highest standard plate count (5.1 x 106 cfu/g) was observed in Batashi (Clupisoma atherinoides) and lowest (2.3 x 105 cfu/g) in Rui (Labeo rohita). Total bacterial load was almost similar in case of other fishes. Mold count was highest (7.5 x 102 cfu/g) in shrimp (Penaeus indicus) and lowest (8.0 x 101 cfu/g) in Pabda (Ompok pabda). Yeast count varied between 1.0 x 103 cfu/g in Batashi and 7.0 x 101 cfu/g in Rui. Total coliform and faecal coliform were detected in all the fish samples. Coliform count measured by most probable number (MPN) method was found to be 240/g in all fish samples. Faecal coliform count in the fish samples varied from 2.8 to 240/g. Salmonella was detected in at least two-third of the samples analysed. High microbial load in raw fishes indicates that raw fish would decompose very quickly at ambient temperature, and the presence of coliforms and Salmonella indicates the raw fish handling is not safe.Keywords: Fish, Microbiological analysis, Pathogens Bangladesh J Microbiol, Volume 24, Number 1, June 2007, pp 67-69
DC Speed Regulating Device of Electro-Excavator Based on ARM
Authors: Huang Liang Pei , Liu Meng , Luo Zhong Cheng
Published: December 2011

In order to overcome the disadvantages which existed in traditional control system of electro-excavator,such as backward technology,large noise,inconvenient operation,low dynamic efficiency,high cost and so on,the structure and the working principle of DC speed control system were firstly analyzed.Then core board UTU2440-F-V4.5 was adopted to design a digital controller, which can produce 12 triggering pulses to trigger 12 GTOs and monitor the work condition of electro-excavator.Furthermore,synchronous signal detection circuit,work parameter detection circuit and triggering pulse circuit were discussed in detail.Finally,good performance of speed,convenient maintenance and significant energy saving of DC speed control system were proved by experiments.
Analysis of AC Chopping Control Voltage Regulation Circuit and MATLAB Simulation
Authors: En De , Liu Yang Yang , Wei Na Na , Wei Huang He , Chen Xiao Guang
Published: December 2011

In the power electronic circuits, AC chopping control voltage regulation circuit through change the chopped device conduction time, it can easily change output voltage size. Load currents do not include low-order harmonic, they contain only higher harmonic which are relevant to the switch period , they are easy to filter out. So the power efficiency is high and it is characterized of high performance. This paper introduces a kind of widely used AC chopping control voltage regulation circuit and we simulate it by simulink. The result fully embodies the superiority of this kind of circuit.
Optical Properties of Co-Doped Zno Nano Powder Material Prepared by Ball Milling
Authors: Xu Song Ning , Cai Z.Q. , Sun N.K. , Gao Y.B. , Liu F.
Published: December 2011

Zn1-xCoxO nano powders have been successfully prepared by ball milling and have been annealing at 600°C. The crystal structure and optical properties of sample were characterized by X-ray diffraction (XRD), photoluminescence spectra (PL) and ultraviolet visible light absorption spectra (UV), and the formation mechanism was discussed. Co-doped ZnO nano powders exhibit wurtzite (hexagonal) structure. Co2+enters into ZnO crystal structure and substitutes for Zn2+. All samples show typical luminescence behavior with about 396nm UV emission peak. In addition, the about 450nm and 470nm blue emission peaks are found in photoluminescence spectra. Before the doped content is within 8at%, the band edge of ultraviolet absorption appears red shift phenomenon with the increase of doping content. The peak position was shifted from 362nm (3.43eV) to 367nm (3.38eV). Annealing is in favor of the replacement that Co2+enters into ZnO crystal structure and substitutes for Zn2+
Thin Laser Weld Seam Feature Extraction on Industrial Production Line
Authors: Wang Li Wei , Sun He Xu , Chen Hai Yong
Published: December 2011

The study proposes a robust method to extract the line structured light stripes in industrial environments. The line structured light stripe is projected onto the laser weld seam to be measured by a projector, and deformation of the stripe is detected by a CCD camera with industrial microscope lens. An image processing method that can efficiently locate the deformation of the stripe in the image plane is presented. Finally, the method is applied to two kinds of laser weld seam specimen applications, and excellent performance is shown by some experimental results.
Far-Field Properties of Vectorial Cosh-Squared-Gaussian Beams beyond the Paraxial Approximation
Authors: Jiang Mei Ping , Yu Ning Ning , Jin Yi , Jiang Xing Fang , Tang Bin
Published: December 2011

The concept of vectorial nonparaxial cosh-squared-Gaussian (ChsG) beams is introduced and their free space propagation equations are derived analytically by using the vectorial Rayleigh-Sommerfeld diffraction integrals, and far-field expressions as well as paraxial propagation formula are obtained in free space. Numerical calculations and analysis show that, the f-parameter and decentered parameter plays an important role in determining the far-field properties of the vectorial nonparaxial ChsG beams.
Studies on Electron Spin Relaxation in AlGaAs/GaAs Multi Quantum Wells
Authors: Wu Yu
Published: December 2011

Time-resolved circularly polarized pump-probe spectroscopy is used to study the carrier density dependence of the electron spin polarization dynamics in AlGaAs/GaAs multi quantum wells at room temperature. Experimental results show that the spin relaxation time increases with the carrier density, which is in conformity with D'yakonov-Perel relaxation mechanism.
Simulation of Slope Stability
Authors: Lin Hai Xiao , Wang Gui Lin , Liao Ming Cheng
Published: December 2011

With railways, highways continues to build, expansion of tourism development and urban construction, to some extent destroyed the native geology, geomorphology, resulting in great loss of water and soil, geological disasters have occurred frequently, Slope became a common occurrence. Event of a slope collapse, landslides and mobility, not only nearby residents caused casualties and property losses, but also cause serious environmental impact. In this paper, combined with the actual example model, using ABAQUS software for slope stability were investigated by numerical simulation and result analysis, and development of rational treatment scheme. Through the study of the influence of the main factors for slope stability slope failure prevention, support reinforcement so as to provide a theoretical basis.
Research on Eliminating Closing Resistors in 500kV and above Transmission Lines Circuit Breakers
Authors: Tian Shu , Guo Peng Jun , He Jin Peng
Published: December 2011

A crucial factor of the insulation strength in EHV & UHV power system is switching over-voltage, which was simulated and calculated respectively for power system of 500kV, 750kV and 1000kV in EMTP-ATP software. The calculation results show that for the 500kV power system, the both sides of which having MOA could limit the closing and reclosing over-voltage under 1.87p.u after eliminating closing resistors, and the maximal energy absorbed by MOA is 365kJ; for the 750kV power system with three arresters, after eliminating closing resistors, the switching over-voltage could be suppressed to 1.65p.u, and the maximal energy absorbed by MOA is 3360kJ; For the 1000kV power system, according to the simulation and calculation, it would be better rely on closing resistors and MOA together to limit the switching over-voltage, provided four arresters were installed along the lines, over-voltage can be suppressed to 1.34p.u., and the energy absorbed by MOA is far less than the maximal capacity of energy.
Convergence Analysis of Hybrid Free Search and Invasive Weed Optimization Algorithm
Authors: Li Lu , Wang Xing Yu , Zhang Zi Hou , Fan Liu Bin
Published: December 2011

Considering the fitness of each individual, a hybrid intelligence algorithm is established, which combine the excellent probing ability of free search algorithm (FS) with exploiting ability of invasive weed optimization algorithm (IWO). The hybrid algorithm can overcome the disadvantage of lower optimization rate in late evolution for FS and taking advantage of powerful exploiting abilities for IWO. Identity between FS and IWO is analyzed and convergence of the two algorithms in solving continuous function optimization is provided. Simulations confirmed the analysis. Multi-model Shubert function is chosen to carry out the simulation. Compared with FS and IWO, the hybrid algorithm is superior in convergence speed and robustness.
Load Balancing in the Parallel Queueing Web Server System
Authors: Zhang Li Na , Ma Xue Si
Published: December 2011

With the explosive use of internet, contemporary web servers are susceptible to overloads during which their services deteriorate drastically and often lead to denial of services. Many companies are trying to address this problem using multiple web servers with a front-end load balancer. Load balancing has been found to provide an effective and scalable way of managing the ever-increasing web traffic. Load balancing is one of the central problems that have to be solved in parallel queueing web server system. To analyze load balancing this paper presents a queueing system that has two web servers. Firstly the centralized load balancing system is considered. The next, two routing policies are studied, the average response time and the rejection rate are derived. Finally some of our results are further considered.
Novel Scheme for Multiple-Access Interference Mitigation with Low Complexity
Authors: Yin Zuo Liang , Ma Hui Xiao , Mao Xing Peng , Cai Jun
Published: December 2011

To mitigate multiple access interference and improve the system capacity, an effective multiple access scheme, called GCDMA, is proposed. Exploiting the IDMA iterative multiuser detector in each group, the intra-group interference can be effectively handled. Analysis and simulations demonstrate that the proposed technique outperforms the conventional CDMA in terms of both system capacity and bit error performance. Lower complexity of the proposed scheme can be achieved than CDMA and even IDMA.
Experimental Research on the Effect of Sinusoidal Excitation on Dynamic Wheel Load of Hydro-Pneumatic Suspension Vehicle
Authors: Lü Bao Zhan , Hu Ai Jun , Zhu Si Hong
Published: December 2011

Based on the mathematical model of quarter car body model being put forward, the indoor platform experiment of quarter car body with hydro-pneumatic suspension system was done. During test, the parameters of dynamic wheel load along with the change of vibration amplitude and frequency were investigated. The results show that: the cycle of acceleration of sprung mass has half cycle lag than unsprung mass, and the main parameters of dynamic wheel load has increased significantly along with the increase of vibration amplitude and frequency. At the same time, through analysis the acceleration time responses of sprung and unsprung mass, it can be shown that hydro-pneumatic suspension has good anti-vibration performance.
Data Exchange Method between ADAMS, CATIA and Solid Works Software
Authors: Mao Peng Jun , Zhang Fu , Zhang Guo Ying
Published: December 2011

Three kinds of data transmission standards of IGES, parasolid and STEP on the SolidWorks and ADAMS software were contrasted to get the Parasolid for the most suitable software standards. CATIA 3D software has powerful function of modeling, but ADAMS has poor function of modeling. It has built the four feet completion institutions of 3D modeling by CATIA, then through among the middle media of SolidWorks software format to conversion and import CATIA 3D entity modeling into ADAMS/View environment to make up for the problem of insufficient ADAMS modeling ability. This paper focused on the discussion of data exchange process among ADAMS, CATIA and SolidWorks software.
The Improved Design of Controller of High-Tension Anti-Explosion Switch in the Coal Mine
Authors: Hu M.H. , Li Hong Fei , Lv Y.L.
Published: December 2011

The controller of high tension anti-explosion switch in the coal mine pit is the core of the whole switch system. The headquarter of the working switch. Meanwhile, it is also the weak part in the switch cabinet. Problems are liable to cause danger to the power system in the mine pit, especially when the working environment of the supply power wire netting is not stable. The paper, based on the circuit structure and working principles of different controllers, puts forward an improved design for the controller. And the controller operates well after the experiment.
The New Design and Research of Face Gear in the Clutch
Authors: Liu Yang , Xing Zhi Long , Chen Dong
Published: December 2011

Based on the characteristics of low efficiency and short life cycle of the previous face gear in the clutch, the article puts forward a new type of the face gear. The new face gear can joggle interlaced gear, transfer large torque and extend service life. The article describes the history and recent research of the gear fear, compares the structural characteristics of the previous face gear and the new face gear and analyzes the theory of the strength calculation for the transmission intensity of the new face gear. What's more, simulations based on finite element analysis draw the face gear transmission strength and provide a reliable basis for the strength design of the new face gear.
Simulation Study on Ultrasonic Lapping Trajectory of Ceramic Materials
Authors: Zhang Chang Juan , Gao Bao Bin , Liu Chuan Shao , Zhao Bo
Published: December 2011

Hard brittle materials have been popular used in manufacture experience because of the excellent performances. However the low plasticity, frangibility and non-conduction make the machining very difficult. Therefore, ultrasonic vibration was introduced to common lapping for the purpose of higher removal rate and fine surface quality. The acoustic model of ultrasonic lapping was proposed, the track equations of ultrasonic lapping with different vibration modes were deduced, the influencing factors of lapping tracks were obtained, and the lapping tracks with different lapping parameters had been emulated. It can be concluded that ultrasonic lapping is a high efficient processing method adapting to ceramic materials.
Intrusion Detection on Hybrid Gene Expression Programming
Authors: Deng S. , Lin W.M. , Zhang T.
Published: December 2011

This paper present intrusion detection on hybrid gene expression programming (ID-HGEP), which combined theory of attribution reduction in rough set to improve precision and efficiency on intrusion detection. Through extensive experiments on high dimension data sets, it is shown that ID-HGEP is apparently more advantageous in terms of convergence speed, intrusion detection efficiency and average consumptive time in contrast with traditional intrusion detection algorithm on GEP.
Research on Active Knowledge Aided System of Automobile Parts Design
Authors: Zhang Xi Ai , Ma Fei
Published: December 2011

According to the status of higher knowledge threshold that is set up for designer by CAE technique, establishing knowledgebase of active knowledge aided system of software to furnish designers appropriate design knowledge and experiences for reducing higher knowledge threshold of CAE and lightening the learning burden of designers. System takes the example of the analytical design of automobile parts in CAE software to realize rapid application of sophisticated CAE and debase the cost of design.
Study on Finite Element Modeling Method of Cylinder Block
Authors: Li Min , Yin Zeng Hui , Yao Jian Jun , Liu Jian Xin , Du Hui Yong
Published: December 2011

Based on finite element pre-processing software HyperMesh and SimLab, the finite element model of a four-cylinder diesel engine block was built, the characteristics of the two meshing tools were also be described. Using inhere free modal frequencies and shapes as evaluation indexes, the influences of cylinder block modeling methods were studied. By using HyperMesh combined with SimLab, an efficiency mesh generation method of cylinder block was proposed. This mesh generation method can also be used in the modeling of other complex parts.
Research on Decoupling of Multivariable System in MOEMS Three-Component Acceleration Seismic Geophone
Authors: En De , Wang Xiao Bin , Wang Ning Ning , Zhang Ning Bo , Feng Jie Yu
Published: December 2011

We found the dynamic behavior of detected signals by MOEMS three-component acceleration seismic geophone has nonlinear, time-variation, multi-variable and strong-coupled. We proposed a method used a multivariable fuzzy-neural net work decoupling controller, designed and simulated the corresponding decoupling scheme. The results show that this method is stable and reliable, giving some help to the development of three-component acceleration seismic geophone.
Theory and System Implementation of the Electronic Scale Based on STC89C52
Authors: Wang Da Hu , Liu Huan , Zhao Jiang Tao
Published: December 2011

In the paper we put forward a design about electronic scale based on STC89C52,which includes data acquisition circuit, control system circuit, LCM1602 liquid crystal display circuit, buttons calibration circuit, alarm circuit and serial interface communication circuit. Meantime we develop the AD conversion program, numerical conversion program, display drivers program, EEPROM memory reading and writing program, buttons calibration program, and the writing of online control program. Then we realize the design of multi-function electronic scale and present the improved scheme. Finally system tests show that the system performance is stable, it can accurately calibrate to zero, system alarm function is good, and online control function is steady.
Simulation Research on how to Improve the Range Resolution of Pulse Compression Radar Based on Phase Coding
Authors: Tang Yu
Published: December 2011

Phase coded radar signal is one of the pulse-pulse modulation signal in the radar system. Based on the characteristics of matched filtering, we theoretically analyze the basic principle of the phase coded compression radar system. In the Matlab platform, we set up a simulation model which is used for matching filter, when the radar transmitting signal is Barke code signal. The simulation results show that Echo signal can obtain certain pulse compression ratio. By the matched filter, the main lobe amplitude of 13 bits Barker code signal is 22 times the rate of side-lobe. 13 bits Barker codes by the matched filter have the maximum pulse compression ratio.
Chaos Character of Deviation Signal and Prediction of Tail Deviation in Strip's Rolling
Authors: Wang G.B. , Wang K. , Zhao X.Q.
Published: December 2011

In strip tandem rolling process, there is always deviation between the center line of the strip and the assumed center line, which is called running deviation. In this thesis, based on the actual running deviation data of some aluminum strip rolling industry, we analyzed their chaos and fractal character, proposed one improved pattern classification based on the fuzzy c-average clustering, on basis of this method classified running deviation pattern, constructed adding weight zero-order local prediction method of strip truning deviation signal. After the s actual data test, the forecasting result achieves the desired accuracy.
Fault Diagnosis for Motor Rotor Based on KPCA-SVM
Authors: Li Ping , Li Xue Jun , Jiang Ling Li , Yang Da Lian
Published: December 2011

Aimed at the nonlinear properties of motor rotor vibration signal,a fault diagnosis method based on kernel principal component analysis (KPCA) and support vector machines (SVM) was proposed. Initial feature vectors of motor vibration signal were mapped into higher-dimensional space with kernel function. Then the PCA method was used to analyze the data in the high dimensional space to extract the nonlinear features which is used as training sample of SVM fault classifier. Then the rotor fault is identified using the trained classifier. The classification effect of KPCA-SVM is compared with PCA-SVM and SVM. The result shows that the method based on KPCA-SVM can identify motor rotor fault efficiently and fulfill fault classification accurately.
Algorithm for Real-Time Image Processing in the Robot Soccer
Authors: Liu Hai Bo , Li Wei Wei , Dong Yu Jie
Published: December 2011

Vision system is an important part of the whole robot soccer system.In order to win the game, the robot system must be more quick and more accuracy.A color image segmentation method using improved seed-fill algorithm in YUV color space is introduced in this paper. The new method dramatically reduces the work of calculation,and speeds up the image processing. The result of comparing it with the old method based on RGB color space was showed in the paper.The second step of the vision sub system is identification the color block that separated by the first step.A improved seed fill algorithm is used in the paper.The implementation on MiroSot Soccer Robot System shows that the new method is fast and accurate.
A Square NAM Representation Method for Binary Images
Authors: He Jie , Zheng Yun Ping , Guo Hui
Published: December 2011

The Non-symmetry and Anti-packing Model (NAM) is an effective pattern representation model. In this paper, a new NAM image representation method by using the nonoverlapping square subpatterns, which is called the square NAM (SNAM) representation, is proposed. The idea of the SNAM representation is described. The square subpattern has its own significant characteristics when it is compared with other subpatterns such as the triangle and the rectangle, etc. Unlike the general triangle subpattern which needs to record three vertices of the triangle and unlike the rectangle subpattern which needs to record the coordinates of its starting point, length and width, the square subpattern needs to record only its starting point and the side. Therefore, as far as a single record of the square subpattern is concerned, it can save storage space more effectively. The theoretical and experimental results presented in this paper prove the efficiency and the effectiveness of the proposed SNAM representation method for binary images.
Research and Implementation of the Optimal Design Pattern of Electronic Commerce Based on J2EE
Authors: Wang Yi Ran , Zhang Xing Jin
Published: December 2011

Analyzed and recomposed to J2EE architecture, and during research of design pattern, the document bases on existing frame for achieving more application-layer reuse to engineer framework, and forms an optimal design pattern of electronic commerce. The pattern is actualized in on-line shopping system found on J2EE. The experiment results show that it reduces system development cycle, optimizes system structure, enhances the system's performance, and decreases the risk and the cost in software development when the framework and design pattern are combined artfully to use on electronic commerce
Authentication Protocol Security Assessment Framework Based on Attack Classification
Authors: Wang Hao , Tan Guo Zhen , Liu Li Dong
Published: December 2011

Security of authentication protocol is an important factor to network security. To ensure protocol security, attacks on authentication protocol were classified from the aspect of security theory and implement. On this basis, an authentication protocol security assessment was discussed. The framework determines security risk of authentication from security of password system, vulnerability of protocol itself and environment threat possibility. It can be used to assess security and capability to resist risks objectively
GSPN-Based Modeling Approach for Analyzing Complex Factors in Production Process of Automatic Machining Line
Authors: Peng Bin , Zhu Bo , Liu Fei
Published: December 2011

Most of the pre-existing modeling approaches for Automatic machining line (AML) concentrate on the equipment failure, but ignore some factors greatly influencing the performance of AML in production process, like the tool life, quality abnormality etc. Considering the above complex factors, a GSPN-based modeling approach is proposed to model the AML based on the fundamental principle of generalized stochastic petri nets (GSPN), which contributes to quantitatively analyze the relations between those factors and productivity of AML. The proposed modeling approach is applied in the automatic gear hobbing and shaving line in a gearbox factory. Some factors including equipment failure, cutting tool and quality abnormality are simulated to analyze the affections on the productivity, and the results show the validity of the approach.
Study of Quantum Communication System with Coherent Light
Authors: Hui Hunag Chun
Published: December 2011

In this paper， we introduced a system of coherent optical detection with homodyne， which implementing coherent optical communication，our own design based on the principle of coherent optical communication. IN the system, PCI6111E was useed as a data acquisition(DAQ) module. Alice and Bob’s control procedure by their computers under the LabVIEW. The synchronous detection and DAQ were carried out on the system. The signals were processed, displayed and measured. The Experimental results show that by light-synchronization and LabVIEW procedure control, each function module work together in cooperation, include Alice’s acousto-optic modulator and electro-optical modulator, Bob’s data acquisition and phase adjustment by PZT. The coherent optical information could be transitted by Alice and real-time demodulated by Bob.
Multi-Focus Image Fusion Using Local Energy Pattern
Authors: Chang Ko Chin
Published: December 2011

For general image capture device, it is difficult to obtain an image with every object in focus. To solve the fusion issue of multiple same view point images with different focal settings, a novel image fusion algorithm based on local energy pattern (LGP) is proposed in this paper. Firstly, each focus images is decomposed using discrete wavelet transform (DWT) separately. Secondly, to calculate LGP with the corresponding pixel and its surrounding pixels, then use LGP to compute the new coefficient of the pixel from each transformed images with our proposed weighted fusing rules. The rules use different operations in low-bands coefficients and high-bands coefficients. Finally, the generated image is reconstructed from the new subband coefficients. Moreover, the reconstructed image can represent more detailed for the obtained scene. Experimental results demonstrate that our scheme performs better than the traditional discrete cosine transform (DCT) and discrete wavelet transform (DWT) method in both visual perception and quantitative analysis.
The Research of Application of Laser Pointer Control Projection Screen Menu
Authors: Xia Bing , Lai Gui Xiong , Ai Xin Ran , Zuo Yi , Jiang Xi Xi
Published: December 2011

Existing wireless control laser pointer with the function of paging PPT in projector can control the move of the mouse pointer. The original problem is that the traditional wireless mouse is unhandy with the mouse pointer moving in frames. To address the difficulty, this project through the camera getting images on the projection screen can first determine the edge of the screen, using frame difference algorithm to extract feature points of the laser light, then call the API of windows and finally move the cursor to the appropriate specified place. Four image processing modules are designed in order to accomplish the process. The result turns out that the mouse can move freely according to the laser spot. Experimental results show that light intensity of the external environment does not affect the control. Moreover, under the normal indoor environment, mouse delay and maximum use of the distance meet the practical requirements.
Building Biomarker Combinations for Korean Ovarian Cancer Screening Using Statistics and Machine Learning
Authors: Song Hey Jeong , Kim Yu Seop , Choi Kwang Won , Kim Jong Dae , Park Chan Young , Lee Erika , Kim Jong Won
Published: December 2011

Early screening using appropriate biomarkers is helpful for the effective treatment of ovarian cancer. CA-125, the most widely used biomarker for the diagnosis of ovarian cancer, has high false positive and false negative rates. We introduce an approach for determining an appropriate combination of biomarkers known to be highly related to ovarian cancer among 21 predetermined biomarkers. Sera representing 27 cases and 31 controls from women undergoing surgery were examined using high-throughput, multiplexed bead-based immunoassays. Student’s t-test and a genetic algorithm (GA) were employed and compared for building the proper combination of two to four biomarkers. The combinations selected by both methods were compared with a 5-fold cross validation of the LDA classifier. The combination of four markers chosen by the GA had the best performance in regards to accuracy, with sensitivity and specificity of 81% and 100%, respectively.
Adaptive Return Prediction Block Matching Algorithms for Video Coding
Authors: Istanda Vaci , Chen Tsong Yi , Lee Wan Chun , Liu Yuan Chen , Chen Wen Yen
Published: December 2011

As the development of network learning, video compression is important for both data transmission and storage, especially in a digit channel. In this paper, we present the return prediction search (RPS) algorithm for block motion estimation. The proposed algorithm exploits the temporal correlation and characteristic of returning origin to obtain one or two predictive motion vector and selects one motion vector, which presents better result, to be the initial search center. In addition, we utilize the center-biased block matching algorithms to refine the final motion vector. Moreover, we used adaptive threshold technique to reduce the computational complexity in motion estimation.
Experimental results show that RPS algorithm combined with 4SS, BBGDS, and UCBDS effectively improves the performance in terms of mean-square error measure with less average searching points. On the other hand, accelerated RPS (ARPS) algorithm takes only 38% of the searching computations than 3SS algorithm, and the reconstruction image quality of the ARPS algorithm is superior to 3SS algorithm about 0.30dB in average overall test sequences.
In addition, we create an asynchronous learning environment which provides students and instructors flexibility in learning and teaching activities. The purpose of this web site is to teach and display our researchable results. Therefore, we believe this web site is one of the keys to help the modern student achieve mastery of complex Motion Estimation.
Improving Fuel Cell Industry by Constructing Metrological Traceability
Authors: Ma Hsien Chen
Published: December 2011

Due to the reality of ninety five percent dependency of energy-importing, the diversification of kinds and sources of fuel like crude oil is making crucial and environmental issues in Taiwan. Efficient and zero emission fuel cell is a promising power source and expected to play a major role in the future energy supply. According to the fuel cell roadmap of the Bureau of Energy, Taiwan Ministry of Economic Affairs, and the projected annual output will reach NTD 13,000 million in 2020, thus, a recognized specification and traceable metrology is necessary to maintain the product quality and trade equity once the market is emerged. In this paper, we review the current status of fuel cell development and standards in Taiwan and then propose a solid fuel cell metrology which can be traced to international standards.
An Innovative TRIZ-Based Methodology to Explore Design Conflicts for Collaborative Product Design
Authors: Liu Tien Lun
Published: December 2011

Due to the product complexity and time constraint, it is common to conduct a collaborative design process to consider design requirements concurrently from the product lifecycle. However, such multi-disciplinary integration process may lead to potential design conflicts which has to be further resolved as the development continues. In this research, we propose a novel analytic model by combining the concepts of Ideal Final Result (IFR) and Trends analysis in TRIZ theory to systematically find the possible design contradictions from a top-down approach. The IFR is used to represent the integration of the developing product requirements which are requested from the collaborative team members. We then apply Trends analysis to compare the current state of existing product and the IFR state of the developing product. Therefore after comparison we will transform the differences into 39 engineering parameters defined in TRIZ to acquire possible design contradictions among components. The contributions of this methodology not only derive design conflicts systematically, but also help designers jump out of their psychological inertia and perform the design process with IFR to achieve distinct innovation.
Abnormal Walking Styles Definition
Authors: Chuah Yea Dat , Komiya Ryoichi , Goi Bok Min
Published: December 2011

This paper reports the experimental of human walking style data collection system to know abnormal walking styles. The collection system is composed of 3D accelerator and body area network. Data is stored in a PC for the comparison of the normal and abnormal walking style differences. Based on the differences, we are going to define abnormal walking style in terms of 3D acceleration amplitudes.
A Study of the Lower Limbs Movement of Elderly Adults by Vibratory Somatosensory Stimulation Applied to the Ankle Tendon
Authors: So Ha Ju , Kwak Ki Young , Kim Seong Hyun , Kim Dong Wook
Published: December 2011

Normal walking on staircases is a very important ordinary activity. It is a complicated motion that requires a big muscular strength and moment, and a big joint exercise scope. Due to such characteristics, staircase walking may be an obstacle to those with weakened lower limb muscle strength, and actually, fall injury accidents occur. Existing studies focus on dynamic changes in staircase walking. However, this study aimed to analyze staircase-walking characteristics evidenced when applying vibratory somatosensory stimulus to the ankle joint in a bid to reduce the risk of fall injuries associated with staircase walking. Five elderly male subjects, who had no disease related to the musculoskeletal system, participated in experiments. Experiments were held in a motion analysis laboratory equipped with 3-D motion analysis systems, force platforms, etc. In order to gather motion data, subjects wore markers and vibratory stimulation devices designed to apply somatosensory stimulus to ankle joints, and climbed down a staircase with the height adjusted appropriately. Using motion data gathered from staircase-walking, the ankle joint, knee joint and hip joint angles were obtained, and thus each joint's contribution to the motion was calculated. In the case of vibratory somatosensory stimuli being applied to the Achilles's tendon, the ankle joint contributed more to the motion of climbing down a staircase than the knee joint and the hip joint did. On the other hand, in the case of vibratory somatosensory stimulus being applied to the anterior tibialis, the ankle joint contribution was lowered, and to make up for it, the knee joint and the hip joint contribution increased. This outcome revealed that the effect of the vibratory somatosensory stimulation applied to the ankle joint can appear in not only the ankle joint, but also in the whole lower limbs due to chain reaction.