bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimental Study on Low Temperature Mechanical Properties of HTPB Propellant
Authors: Zhang Xiao Jun , Chang Xin Long , Zhang Shi Ying , Zhu Jie Tang
Published: March 2013

In order to investigate low temperature mechanical characteristics of HTPB (hydroxy-terminated polybutadiene binder) propellant, uniaxial tensile tests at both the low temperature and room temperature after short storage at low temperature were conducted and SEM (scanning electron microscopy) was used to observe fracture surfaces. The mechanical properties and stress-strain curves were obtained. The experimental results show that matrix tearing and particle brittle fracture occur in low temperature tensile test, but only particle/matrix interface de-wetting in room temperature tensile test. Low temperature stress-strain curves of propellant appear obviously yield region, and the yield degree is involved to the low temperature value. The low temperature mechanical properties such as maximum tensile stress, elastic modulus and strain at maximum stress against temperature are different from room temperature mechanical properties.
The Effects of Chitosan on Dyeing Abilities of Cotton Fabric Dyed with Reactive Dyes
Authors: He Xiao Xia , Liu Sen , Li Zhu Jun
Published: March 2013

To enhance dyeing ability of cotton fabric, the cotton fabric was modified with chitosan. The effects of chitosan modification on dyeing abilities, such as exhaustion, dye fixation and color yield (K/S)) were studied. The results show that: (1) Chitosan surface modification is of benefit in the increase of dye exhaustion, rising by 3.1% at least (2) The dye fixation of cotton fabric can be improved by surface modification with chitosan, increasing by over 4.2% (3) The K/S value of modified cotton fabric is much higher than that of unmodified fabric, greater by above 18.9%. (4) It can also be obtained that the optimal dyeing temperature should be 50 °C for chitosan modified cotton fabric.
Proposal of Implementation of Conductive Polymer Composites as High Temperature Detection Devices for LVSB’s
Authors: Havelia Pratyush , Dhole Prathamesh , Deb Manan
Published: March 2013

Polymeric Positive Temperature Coefficient (PTC) materials or Conducive Polymer Composites (CPC) display a certain characteristic of change in conductivity with temperature, which is unique to this kind of materials and is not found in any other electrical conductor. This paper recognizes the problem of formation of hotpots in low voltage switchboards and an economical and effective method to prevent this undesirable situation by the use of CPC’s. The tests done on samples and the obtained results bolster the proposition of using these materials as suitable temperature detection devices. A conceptual design of such a device was developed using Pro/E and is described in this paper. Current and future progress regarding the industrial potential of this device is also mentioned.
The Broad Spectrum Inhibitory Effect Study of 3 Rare Earth Salts Used for Microbial Inoculant Additive
Authors: Huo Ping Hui , Li Jian Feng , Shi Shang Li , Zhang Shu Qing , Chen Li Yu , Miao Yang Yang , Jia Yu Ping , Huang Shu Ai
Published: March 2013

Three rare earth salts: La(NO3)3, LaCl3 and Ce(NO3)3 were used to study their broad spectrum inhibitory effect on micro-organisms to look for an effective additive for microbial inoculant. YMA solid media containing different concentrations of RE 3+ (200, 400, 600, 800, 1000 mg L-1) were exposed to air and been smeared soil solution, respectively, for contamination study. Results indicating that for air microbes, the inhibitory effect on microbe number of the 3 rare earths was Ce(NO3)3 > LaCl3 > La(NO3)3, and for soil microbes, it was La(NO3)3 > Ce(NO3)3 > LaCl3. On the whole, microbe diameters decreased as RE 3+ concentration increase, except that mass microbes occurred in high density. Actinomycetes were the most sensitive microbes to RE3+ stress, which could be inhibited at low RE 3+ concentrations (200 and 400 mg L-1), followed by bacteria and mould.
Disaster Prevention of Mining Field Roof Fall in Open Pit to Underground
Authors: Li Yao Ji , Li Xiao Shuang , Geng Wei Le
Published: March 2013

The research object is transformation the deep orebody of jinning phosphate which belong to Yunnan Phosphorus Group Co from pit to underground mining. Through the mine-site field trips, on the basis of the existing mine geological occurrence conditions, proposed a stope roof fall disaster prevention technology which suitable for mining actual project overview. And related research results can provide theoretical guidance and advice of roof fall disaster for mining of Yunnan Phosphate Group or other similar conditions mines which are in transformed from open pit to underground mining.
The Research of Vehicle Seat Dynamic Comfort Characteristic
Authors: Li Rui , Guo Li Xin
Published: March 2013

Increasing consumption of the automobile make vehicle seat comfort characteristic paid more attention to. Damping performance as the third important factors is not allowed to ignore. A three freedom "human - seat" system model has been created for simulation. The result show that as the natural frequency f0 improved, the two resonance peak frequency of the system also improved, the growth of the first order resonance frequency is quite obvious, the second is less growth. And the higher the f0 the less change is. With the improvement of f0, the first order resonance peak to peak value obviously reduced, and the second order resonance peak to peak value increased. So, it is said that the higher the f0 the poor damping effect in high frequency area. The influence of ξ for the damping ratio of work frequency is not big, but the influence for the amplitude value is significant. Increase the natural frequency can make phase angle decreased when resonance, but the change of damping ratio, do not have obviously changes.
Effect of DC Supply Voltage on Eddy Current Loss in Permanent Magnet of Permanent Magnetic Synchronous Motor for Electric Vehicle Application
Authors: Wu Xiao Peng , Zhang Cheng Ning , Dong Yu Gang
Published: March 2013

The 2-D time-stepping finite element method is adopted to systematically analyze the effect of DC supply voltage of inverter on eddy current loss in permanent magnet of PMSM for EV application. The finite element model and inverter model are built to calculate the winding currents, eddy current losses in permanent magnet and air-gap flux densities with different DC supply voltages when the motor runs in flux-weakening area. Analysis shows that, the eddy current increases significantly with the increase of DC supply voltage, although the fundamental winding current decreases. The temperature-rise experiment of permanent magnet is carried out, proving the validity of analysis.
Optimization Design for C6190ZLC Marine Diesel Engine
Authors: Chen Gang Tian
Published: March 2013

With the gradual development of inshore fishing in depth and breadth, higher requirements are proposed against the dynamic property and economy marine diesel engine. Meanwhile, the convenience of maintenance and reliability of diesel engine are crucial to the operation efficiency of fishing boats. Therefore, it can better adapt to the constantly developing demands on marine engine market only by constantly improving the structure and performance of diesel engine.
The Analysis of Distribution Lines Lightning Accident Caused by Microwave Tower
Authors: Wang Qing Hao , Huang Yu Xia , Liu Bo , Wang Yi , Huang Zhi Jun , Miao Hui , Huang Yan Hai
Published: March 2013

Through the analysis of the microwave tower stuck by lightning, as well as a microwave tower can trigger distribution lines occur lightning accidents, and explaining the consequences of the distribution lines and precautions. From two accidents, discussing the reasons for producing direct lightning stroke and lightning, at the same time demonstrate the over voltage of two kinds of lightning damage the magnitude and the power distribution network, and finally discussing the effective measures to prevent such accidents.
A Renewable Source of Hydroelectricity
Authors: Aboukhres Saleh A. , Zayed Ali S. , Ayad Hisham A. , Ganesan S.
Published: March 2013

The Sea-waves, as a kinetic energy, is one of the renewable sources of energy which can be harnessed to generate electricity. Wave power devices extract energy directly from the surface motion of sea (ocean) waves or from pressure fluctuations below the surface. A variety of technologies have been proposed to capture the energy from waves and some of the more promising designs are undergoing demonstration testing at economical scales. In this research, the irregular kinetic energy in sea waves is to be converted to a stored potential energy and used in a regular form, with conversion once again to mechanical energy, for driving a turbine which to be connected to an electricity generator through a gear box. Wave power varies considerably in different parts of the world and wave energy cannot be harnessed effectively everywhere. Because sea waves may become ineffective for a period of time, this research is concerned with the storage of energy in one of its forms.
Iterative Learning Control for a Class of Time-Delay Systems with Time-Varying Uncertainties
Authors: Zhao Ye Lei
Published: March 2013

An adaptive iterative learning control algorithm is proposed for a class of known time-delay nonlinear system with unknown time-varying parameter. A parameter separation technique is used to deal with time-delay problem. The control approach presented in this paper can guarantee that the tracking error converges to zero uniformly on the iteration interval as the iteration number approaches to infinity. A simulation example is provided to illustrate the efficiency of the proposed control algorithm.
A Sensor Used to Detect the Thigh Human-Machine Coupling Force in Lower Limb Rehabilitation Robot
Authors: Li Yue Wen , Shen Lin Yong
Published: March 2013

The acquisition of the patients’ active force is the key process to realize the active rehabilitation function of lower limb rehabilitation robot. This paper analyzes the relationship of human-machine coupling force and patients’ active force, based on what put forward a proposal to acquire the active force .A sensor is designed to detect the human-machine coupling force and a stress analysis is carried on based on the actual usage of the sensor. The scheme of the stress foil arrangement and bridge circuit design are discussed in the paper. And a FEA is also carried out to analyze the strain situation of the elastomer.
Switched-Capacitorized DC/DC Converters
Authors: Luo Fang Lin
Published: March 2013

Switched capacitor DC/DC converters are new prototype of DC/DC conversion technology. Since switched capacitor can be integrated into a power IC chip, consequently, these converters have small size and high power density. Switched capacitor can be used in voltage-lift technique to construct DC/DC converters. The clue is that for the converters operating in discontinuous input current mode (DICM) the switched capacitors can be charged during the input current discontinuous period. The switched capacitors are charged to the source voltage during the switch-off period. They will join the conversion operation during switch-on period, and the stored energy in them will be delivered through further elements to the load. These converters are called switched-capacitorized DC/DC converters. Simulation and experimental results are provided for verification of this design.
Research of UPS Inverter Based on Repetitive Control and Deadbeat Control
Authors: Zhao Ke , Hu Juan , Xiang Ying , Deng Hong Feng
Published: March 2013

A composite control strategy is proposed based on the repetitive control and deadbeat control in the ups inverter control system, according to the features of the non-static error track of repetitive control and the deadbeat control’s fast response and high precision control. Repetitive control can be very good to eliminate periodic disturbance, and deadbeat control to reduce the overshoot and oscillation, when the system is subject to greater disturbance, that can improve the dynamic performance of the system. Simulation results show that it has a fast transient response, high accuracy, THD and other small features.
Design and Simulation of Discrete Controller for DC-DC Converter
Authors: S Vijayalakshmi , Vairamani K.R. , Devi P. Gayathri
Published: March 2013

This paper describes boost converter with closed loop discrete Proportional, Integral and Derivative (PID) controller are designed and simulated. The dynamic performance of the boost converter can be improved by the design of discrete PID PWM controller. Discrete PI Controller, Analog PI & PID Controller of boost converter is designed and simulated whose performance parameters are compared with the Discrete PID Controller is illustrated. The DC–DC converter can withstand its regulation performance with the variations in input supply voltage, circuit inductance, capacitance and load resistance.
Variable Structure Fuzzy PID Plane Flat End Steering Gear Servo System
Authors: Song Le Peng , Wang Hua Bin
Published: March 2013

A mathematic model, focusing on the control of tail plane actuator servo system, is established based on control theories. Considering its nonlinearity and intermittence, a fuzzy-PID control method is brought forward based on fuzzy theory. The design of a fuzzy-PID controller has been accomplished. and its comparision with conventional PID control and P control has been made. The final system simulation is conducted with Simulink under the effect of unit step signal.The result shows that the fuzzy-PID control has a better performance in speed, response and anti-jamming. It has a satisfactory dynamic characteristic while not losing the advantages of the fuzzy control and the PID control. Therefore, it enhances the integral property of the tail plane actuator servo system and obtains a good control effect. In a word, the new system can meet the requirement of the system better.
Fuzzy Controller for Synchronous Motor
Authors: Zhang Dong , Xu Di Jian
Published: March 2013

The parameters of PID control couldn’t be adjusted on-line, so it also led to not good precision of velocity. This paper presents the implementation of adaptive fuzzy controller for accurate speed control of a permanent magnet synchronous motor (PMSM). The adaptive fuzzy controls were designed to solve above problems. According to the settling fuzzy rules, the voltage vectors are selected to control the inverter. The zero voltage space vector is used to keep the steady state and reduce frequency of inverter. The simulation results show that the proposed control scheme has stronger robustness and better performance than the conventional control scheme.
Research of Electric Differential Control for Motor-Wheel-Drive Electric Vehicle
Authors: Fu Xiang , He Yong , Xu Di
Published: March 2013

The Electric Differential Control for Motor-Wheel-Drive Electric Vehicle is discussed. And then the self-regulation method to realize the electric differential by controlling the torque of the motor and freeing the speed of the wheels has been proposed. Firstly, tire-road dynamics modeling has been established, Control system of Motor-Wheel-Drive Electric Vehicle has been designed. Secondly, simulation platform of Motor-Wheel-Drive Electric Vehicle has been established. Lastly, simulation for electric differential control of Motor-Wheel-Drive Electric Vehicle has been validated. The simulation results show that the self-regulation method by controlling the torque of the motor and freeing the speed of the wheels is effective. Each wheel speed and the corresponding wheel speed automatically keep coordination; it can realize the self-regulation differential, no wheel slipping or sliding phenomenon.
The Study on Electromechanical Teaching System and Fault Diagnosis
Authors: Huang Zhi , Liu Xue Peng
Published: March 2013

The electromechanical system is discussed, which simplify the circuit working status by the computer to treat voltage sampling value. Interface program is developed. Finally, large sampling data transmission problem is solved by the PC machine with multiple sampling SCM communication. The digital circuit fault diagnosis method is utilized.
The Detection of Road Roughness Based on MEMS Inertial Sensor
Authors: Liu Yu , Ran Zhen Dong , Liu Shen , Li Na Na , Tang Xue Qiang
Published: March 2013

Propose a detective method of road roughness based on MEMS inertial sensor. This detective method utilizes a unit integrated MEMS inertial sensors and GPS module to perceive the information of road and then achieve the detection of road roughness. Firstly, establish the Gaussian mixture model (GMM) to process the collecting information of acceleration and gyroscope, extract the abnormal events of road. Secondly, use a Concept-Based data clustering model (CBDCM) to achieve the feature description and extraction of various abnormal events. Finally, utilize the position information supplied by GPS to locate the detected road potholes, achieve the detection and supervision of road roughness. Combined with the designed system to conduct test, the experimental result indicates the Fall-out ratio and Omission ratio of pothole events about this detective method is 7.4% and 5.3%, it indicates that the detective method has a high practical value.
Design and Realization of RFID Cold Chain Logistics Management System
Authors: Zhang Jin Hai , Ye Bo
Published: March 2013

RFID technology as one of the top ten technology of the 20th century, has been in transportation, logistics, industrial and other fields has been more and more widely applied, and are increasingly showing its great potential. RFID cold chain logistics management system to promote the implementation of automation, intelligence, and integration of software applications such as supply chain will play a great role in promoting.
Design and Implement of the Wireless Real-Time Data Transmission System Based on USB
Authors: Li Xiao Guang
Published: March 2013

In order to overcome the disadvantages of small broadband, low transmission rate, network delay and high error rate in the locomotive real-time data transmission. A new wireless real-time data transmission system is designed by using nRF24L01 based on USB2.0.Which includes CY7C68013A chip of CYPRESS company and nRF24L01 wireless module, gives communication principle interface electrics circuit between CY7C68013A chip and nRF24L01 wireless module, focus on the hardware and software designs according to practical application and analyze real-time of the data during transporting. An algorithm for reducing real-time data error rate is developed to achieve efficient real-time data transmission. Experiments proved that the system is easy to control and works stably to perform reliable wireless real-time data transmission.
Implementation of Eurocode Load Cases in Optimization Problems of Steel Frames, Based on Genetic Algorithms
Authors: Balea Ioana D. , Hulea Radu , Stavroulakis Georgios E.
Published: March 2013

This paper presents an implementation of Eurocode load cases for discrete global optimization algorithm for planar structures based on the principles of finite element methods and genetic algorithms. The final optimal design is obtained using IPE sections chosen as feasible by the algorithm, from the available steel sections from industry. The algorithm is tested on an asymmetric planar steel frame with promising results.
Hierarchy Organization Model Based on the Logic of Tasks
Authors: Yu Cen , Zhou Wei Jia
Published: March 2013

Hierarchy organization is suitable for multi-robot system application. Robot or collaborative robots group is considered as an agent, then the organization model consists of agents and the relations between them. This paper introduces the logic of tasks combined with description logic to construct logic system. According to related works [4], we can prove is decidable, complete and sound. Based on the logic system, author presented a formal task-oriented hierarchy organization model that can deduce a plan with a strategy can complete task or not.
VOC Gas Sensor Based on ZnO Synthesized by Sol–Gel Process and Improvement in Gas Sensitivity by Adding TiO2
Authors: Ren Lin , Qi Xing Long , Hao Xue , Liang Guang Dong
Published: March 2013

Transparent ZnO gel was synthesized by sol-gel process. In order to getting fine powder of ZnO, at the beginning, ZnO gel was disposed with the pre-firing at 300°C. And then, ZnO powder was calcined at different temperature of 500 °C, 700 °C and 900 °C, the grain size of ZnO powder was different. This paper reports the sensitivity of ZnO gas sensor to three volatile organic compound (VOC) gases (acetone, ethanol and toluene). As we all know, these VOC gases are deleterious to global environment and our health. For different VOC gases, the optimum operating currents and the corresponding sensitivities were different. This paper also researched a nicely sensitive indirect- heating type thick film ZnO gas sensor by adding TiO2. TiO2 was mixed in weight percentage of 2%. The compound oxide sensor debased the optimum working currents of ethanol and toluene. And this sensor also showed rapid response-recovery time, which was propitious to practicability of ZnO gas sensor.
Computation of Gas Hydrate Saturation Models Based on the Experimental Acoustic Parameters
Authors: Zhang Jian , Ye Yu Guang , Hu Gao Wei , Diao Shao Bo
Published: March 2013

It is necessary to know gas hydrate saturation in evaluating gas hydrate volume. So far, there are only few models to estimate gas hydrate saturation. These models are often empirical or derived from observed data. Therefore, we need to confirm their legitimacy and get an approach to use the correct model. For the first time, we combine Ultrasonic Wave and Time Domain Reflectometry to study the relationship between gas hydrate saturation and acoustic parameters, which gets fine results. Subsequently, it attempts to compare the calculated data by time-average equation, Wood’s equation, Lee’s weighted equation and BGTL with the observed data in experiments. The results show the experimental method is very effective. It suggests that the Lee’s weighted equation and BGTL are more applicable in our experiments and various sediments.
The Development of an Automatic Question Generation System on Facebook Using an Artificial Bee Colony Algorithm
Authors: Chen Hsin Chin , Hsu Chia Cheng , Li Hung Chang , Huang Chih Chin , Huang Yueh Min
Published: March 2013

Facebook is currently one of the world's most popular social networking services, and has been widely used in the field of e-learning. In general, learners in e-learning environments need to evaluate their learning ability through taking tests to present the learning achievement. In order to evaluate their ability on e-learning platform with social network services, this study proposes an automatic question generation system for individual learning status. The proposed system uses the artificial bee colony algorithm to find suitable questions for each learner according to the learner's profile, reading experience, professional ability, and the e-learning records in the system. The experimental results indicate that the proposed method improves the accuracy of the automatic question generation system and that it outperforms the random method.
The DTMF and Ethernet-Based Family Safety Monitoring System
Authors: Luan Qiu Ping , Fang Ying , Yuan Li Yan
Published: March 2013

This paper present a family safety monitoring system, which integrated function of telephone alarm, remote control by telephone network and Ethernet. Host alarm system, controlled by MCU, collects data wirelessly from sensors, and makes remote alarm by DTMF. The video processing and transmitting system, with a DSP chip of TMS320F28335 as the core processor, transmits the video data by means of Bluetooth indoors, and by Ethernet in the residential district, so that remote control through Internet can be implemented.
"The Seven Claps" of Quan-Zhou Chest-Clapping with Motion Capture
Authors: Chen Si Xi , Chen Shu , Lin Jian De , Li Jian Wei , Chen Xin
Published: March 2013

This paper focuses on the motion capture method of the certain variety of South China traditional folk dance, Quan-zhou Chest-clapping. The authors used Vicon Motion Capture system to capture the motion of “the seven claps”, the basic form of Quan-zhou Chest-clapping Dance, and optimized the capture procedures and acting standards for the clapping and certain motions’ capture. To process the motion data , the authors used the Motionanalysis system to obtain the six degrees of freedom of certain basic dance motions, by measuring the motions’ maximum and minimum values of linear displacements and angular displacements on axis X ,Y and Z. Based on the measuring results of the motions’ degrees of freedom, the authors further discussed the quantification of motion course and developed the integrate exclusive motion capturing assessment criteria.
Development of a Bipolar Pulse Generator for High-Frequency Ultrasound Imaging System
Authors: Wu Jian Xing , Chen Pei Jarn , Du Yi Chun , Wang Chien Lin , Chen Guan Chun , Chen Tain Song
Published: March 2013

The pulse generator is the critical component in high-frequency ultrasound imaging systems. Currently, there still exist some shortcomings about commercial ultrasound image systems and devices such as 5900 PR …etc.. However, to achieve a higher sensitivity and high performance, a programmable pulser generator is desired to match the requirements of high frequency ultrasound image system. In this study, we utilized a novel bipolar pulse generator method to overcome those issues in developed high resolution image system. As the needs of application in clinic, a real –time of high-frequency ultrasound imaging systems, including pulse generator, high speed scanning mechanism, high voltage protection and FPGA trigger control circuit, was developed in our Laboratory. This paper will focus to compare the performance of the bipolar generator and unipolar generator as used in pulse generator device respectively. Finally, the developed bipolar pulse generator show the better performance than the unipolar generator does. The bipolar system can generate clean N-cycle bipolar pulses and improve the center frequency of transducer up to 60 MHz. The axial resolution of scan system has been improved to around 60 μm. In addition, the result indicated that the proposed bipolar pulser could increase 4 dB for pulse/echo waveforms amplitude.
Development of a Vision Guided Mobile Robot and its Applications in Automated Production Lines
Authors: Her Ming Guo , Liang Wen Jinn , Wu Kuan Wei , Peng Chun Chi , Hsu Kuei Shu , Peng Yen Chia
Published: March 2013

This research developed a vision navigation autonomous mobile robot and combined it with industrial automated production line. Due to traditional TFT-LCD production lines, the load/unload depends on Manual Guided Vehicle (MGV) or Automated Guided Vehicle (AGV). However, it needed to construct many tracks so that the MGV or AGV can move. The track is high cost and is not easy to adjust. Hence, our research developed an autonomous mobile robot with vision navigation technology to determine the location of TFT-LCD panel and the obstruction in the moving process. Furthermore, we successfully developed an intelligent vision navigation autonomous mobile robot in this research. It not only improved the shortcoming of setting up a lot of tracks, but also avoided the obstructions automatically to enhance the safety.
Design of Dimmable LED Lighting for DC Storage Power Supply
Authors: Chang Yong Nong , Cheng Hung Liang , Kuo Chih Ming
Published: March 2013

In this paper, a dimmable LED lighting driving circuit with high efficiency for DC storage power supply is proposed. In this research, Class-E resonant converter is principal circuit structure and possesses superior efficiency in the power converter. LED lighting set accompanied with multiple transformers in cascade are employed, which can improve current uniform problem and increase operating reliability. Furthermore, integral cycle switching technique will be utilized to implement the dimmer design, integral cycle switching control dimmer possesses the advantage of zero-current-switching (ZCS) and can effectively promote the operating efficiency
FPGA-Realization of Vector Control for PMSM Drives
Authors: Quynh Nguyen Vu , Kung Ying Shieh , Van Dung Pham , Liao Kuan Yuen , Chen Sheng Wei
Published: March 2013

The design and implementation of a vector control for Permanent Magnetic Synchronous Motor (PMSM) based on Field Programmable Gate Array (FPGA) technology is presented in this paper. Firstly, a Space Vector Pulse Width Modulation (SVPWM) scheme, vector control method and PI controller are derived. Secondly, the Very-High-Speed IC Hardware Description Language (VHDL) is adopted to describe the behavior of the aforementioned control algorithms. Finally, an experimental system is setup to evaluate the effectiveness and correctness of the proposed vector controller for PMSM drives.
Design of a Step-down DC-DC Converter ASIC Applied to Portable Electronic Products
Authors: Fang Kun , Lu Yao Sheng , Yu Fei
Published: March 2013

Using CSMC 0.5μm process model, a Step-Down DC-DC converter ASIC applied to portable electronic products was designed. The peak current-mode control PWM with slope compensation was adopted in the power management chip to improve the dynamic response speed of the system; the error amplifier and PWM comparator was redesigned to improve the response speed and stability of the chip; the over-current protection function was included in the peak current sampling circuit; in addition, the circuit with the pulse-skipping mode reduce the battery energy loss. Capable of delivering 600mA Output Current over a wide input voltage range from 3.1 to 5.5V, the ASIC, that has a fixed operation frequency of 800kHz and 95% conversion efficiency, is ideally suited for portable electronic products. No external Schottky diode is required in practical application.
The Studying on Design Communication and Conveyance in Project Plan
Authors: Yang Pao Hua , Ho Ming Chuang
Published: March 2013

One of the most crucial factors in a design organization is the contact and communication that is to be maintained with its clients. Most often, design organizations are confronted with communication problems due to the attitudes and perceptions of their client’s design as well as their communication expectations. This study on “Design Communication and Conveyance in Project Plan” intends to underline the importance of a designer's role and working methods in the development of a design and will help improve design communication problems faced by design organizations. The study also throws light on the importance of the deep involvement of a client through frequent communication in the design process in order to maintain the essence of the project. When the goals set by the organization cannot be accomplished in the traditional way, the plans of the project play a considerable role. A business organization, in order to complete a particular project or job from various departments will require the professional and technical personnel involved in the plan to setup a temporary task group that is responsible for dealing with the plan or operation. In design practices, the communication between design managers and designers forms a cyclic phenomenon that is coined by the term CAFE which stands for "Comprehension", "Adaptation” and "Fit-IN" three-stage cycle in order to maintain an "equal" state. Design communication and conveyance are two essential factors when it comes to achieving design goals. The design of communication is affected by the four elements, namely, organization of architecture and design 3P (Project, Process and People). Being a key role in the design of communication, a key figure in the "contact window ", "sender" and "coordinator" is called "a design communication conveyance". In design communication and conveyance in project plan, this study will explore the concept, the difficulties, influencing factors, the types of categories and the framework. Keywords: design communication, project plan
Investigating the Typical Affective Meanings Influencing Interactivity of Interactive Products for Chinese-Speaking Users
Authors: Huang Shih Miao , Li Wu Jeng , Lin Jui Chang
Published: March 2013

The purpose of this paper was to find out the typical affective meanings for interactive products for Chinese-speaking users. The affective meanings are affective adjectives evoked from interactive products. They are used to investigate the structure of emotional responses to objects, or applied to Kansei engineering to establish the connection between physical property spaces and semantic spaces. However, the affective meanings used in previous studies including the structure of emotional responses and Kansei Engineering were varied both in number and adjectives they used. Over 628 adjectives collected from studies related to emotional responses and Kansei Engineering, and websites were condensed into 298 adjective pairs by five Chinese teachers teaching at Junior high schools in Taiwan. Semantic differential approaches were used to rate 16 windows media player skins with these adjective pairs. Furthermore, Item analysis was used to remove the affective meanings with low discrimination. Factor analysis was performed to reduce the number of affective meanings by discovering the words with similar response patterns. The outcomes showed forty-two typical affective meanings which represented the main factors after Factor analysis. These typical affective meanings were suggested as the affective meanings to describe interactive products.
The Application of Digital Ink Painting in 3D Animation
Authors: Lin Da Wei , Chen Yun Shing , Hsu Yu Lin , Chang Pai Ling , Yang Dao Sheng
Published: March 2013

This study explores the development of digital ink animation and to discover whether the digital ink can be combined with the cultural theme successfully. This study uses the experimental creation method. Through the use of traditional ink painting with digital ink painting technology, this paper tries to interoperate the DongGang’s fishermen aspirations and to praise the hard work of the fisherman. A new style of three-dimensional animation is created which emphasizes cunfa. Therefore, the three-dimensional animation with new concept of digital ink painting can be sustainable development and innovation.
A Study of Concept Development in Creative Product Design
Authors: Chen Kuen Meau
Published: March 2013

The imaginative power of human beings is the reappearance and integration of emotional and perceptional experiences. Therefore, if the personal imagination would like to be further developed, the first thing is to enhance agility of emotional experiences and perception. And also the conceptual combination involves joining of two or more concepts to produce a new meaning that satisfies the representation of each constituent concept. Original concepts may emerge from conceptual combination in imagination. New attributes may also emerge from conceptual combination that cannot be explained by each individual concept. The cognitive processes that produce emergent concepts and attributes in conceptual combination may be viewed as a creative process. This research was conducted through a literature review, case studies, and interviews with experts on award-winning works in international design competitions. Through qualitative analysis of these design projects, we identified several paths leading from imaginative constructs to conceptual development in the design process: thematic relationships, intersecting attributes, the transfer of attributes, inherited attributes, causal relationships, analogical relationships, multi-level inclusive relationships, and the interpretation of contrasting meaning. It is hoped that the results of this study will serve as a useful reference in design education, particularly with regard to the development of imaginative and creative capacity.
Creative Drawings as Intuitive Probes for Evaluating Interface Preferences
Authors: Chang Tsen Yao
Published: March 2013

Achieving a balance between visual aesthetics and usability to enhance user experience has enjoyed an increasing popularity in Web design. This study combines creative drawings as intuitive probes to investigate users’ emotional reactions and needs. The basic purpose of these creative exercises is to inspire design researchers and practitioners into applying a strategy in practicable design research to probe real user experiences and create an enjoyable and effective user environment. Emotional engagement with design is vital in design research. Unfortunately, laboratory usability tests often involve complex technical and mechanical tools that discourage user participation, thus limiting the opportunity to receive feedback. The research exercise in this study includes a series of intuitive practices that engaged the participants as target users to sketch an imagined garden layout, a library landscape layout, and a personal home page. We hypothesized from their drawings that a connection exists among the users’ sketches, Web interface preferences, and a classification of personality types. Significant results were obtained: (1) Creative drawing is an effective tool in understanding the personality of a user; (2) Three graphic practices establish emotional connections with the users’ Web interface preferences and product design; and (3) User personality categorization reveals preferences in Web interface and product design. This study focused on the effect of visual aesthetics and user-friendly methods on usability assessments in response to the increasing emotional conciliation of human-computer interaction design. These findings are beneficial in keeping abreast with the developments in design creativity and the qualitative contributions of design inspiration.
An Analysis on Microclimate and Construction of Tongkonan and Alang-Alang in Tana Toraja of Sulawesi, Indonesia
Authors: Ng Teow Ngak , Lin Hsien Te
Published: March 2013

Fallow the nature makes it vernacular have always been the highest principles of vernacular architecture. This research uses Toraja traditional residence houses ( Tongkonan ) and the rice barn （alang-alang）in Tana Toraja of Sulawesi, Indonesia. Through this, we attempt to understand how vernacular architecture effectively controls the indoor environment in the high-temperature, high humidity environment to achieve comfortableness with local materials attained and construction methods. By using thermo recorder equipment to recording and measuring the microclimate record for the residence house and the rice barn. After investigation, comparison and analysis of temperature and relative humidity we discover that the interior environment is more comfortable for human residence in the Tongkonan; at the same time the rice barn is presented as the best storage space for their rice and crops. Both types of buildings create a most habitable environment for people and storage space for grains. It also proves that natural material is an efficient resource for local community as sustainable matter.
Strategy of Green Design on Intelligent Energy-Saving Product under Eco-Design Requirements for Energy-Using Product (EuP)
Authors: Tu Jui Che , Huang Yu Chen , Hsu Chuan Ying , Wu Tung Che
Published: March 2013

With the threat of global warming nowadays in the 21st century, the European Union has set the standard “Eco-Design Requirements for Energy-using Product(EuP)” for controlling the development of consumptive electronic machinery and products. Therefore, the trend of green design sees the instruction of EuP as the main direction for energy-saving. Considering the factors, undergoing the comprehensive evaluation and development process, the industry needs to draw up the corresponding design strategy in response to the new situation. Therefore, to optimize the green design strategy, the designers can replace hardware with the intelligent system to develop more optimal energy-saving products. Following the ecological instructions of energy-saving of EuP as direction, this study combined the advantage of the intelligent system and green design in order to optimize strategy of green design on intelligent energy-saving product under eco-design requirements for energy-using product (EuP). The evaluation factors were included in the strategies of intelligent energy-saving product design by analyzing the product users’ cognition, needs, habit and etc. Furthermore, through the Fuzzy Analytic Hierarchy Process (FAHP), the priority and the important factors of green design were analyzed. By examining the green design strategy on energy-using product, industry needs to think the energy-saving conditions and the key factors on deciding process. Eventually, the efficiency of product design for environment can be fulfilled successfully.
Effect of Various Structures on the Efficiency of Organic Solar Cells
Authors: Chen Kan Lin , Chou D.W. , Huang Chien Jung , Ke Jhong Ciao , Chen Wen Ray , Meen Teen Hang
Published: March 2013

Small molecule organic solar cell with an optimized structure of indium tin oxide (ITO)/copper phthalocyanine (CuPc) (10nm)/CuPc: C60mixed (20nm)/fullerene (C60) (20nm)/bathocuproine (BCP) (10nm)/Al) was fabricated. With optimizing the hybrid planar-mixed molecular heterojunction (PM-HJ) from the double layer heterojunction (HJ) and the bulk heterojunction (BHJ), the short-circuit current density (Jsc) increased from 3.09 to 5.11mA/cm2, the open-circuit voltage (Voc) increased from 0.40 to 0.47V, and the power conversion efficiency (ηp) increased from 0.66 to 1.28% under 100mW/cm2 AM1.5G illumination. These improvements were attributed to reach the optimal balance among the light absorption efficiency, the exciton dissociation efficiency and the carrier collection efficiency of the device, resulting in enhancement of Jscwithout affecting the value of fill factor (FF) and the reduction of the dark current. Furthermore a decrease of dark current is caused to the higher Voc.
Effect of Double Hole-Transporting Structure on Color Purity of Blue Organic Light-Emitting Diodes (BOLED)
Authors: Chen Kan Lin , Huang Chien Jung , Wu Zong Jin , Kang Chih Chieh , Chen Wen Ray , Meen Teen Hang
Published: March 2013

A blue organic light-emitting diode (OLED) with a double hole-transporting (DHT) structure has been developed. The blue color purity was improved by modulation the thickness of CBP layer. When the thicknesses of left CBP and right CBP are respectively 8 nm and 2 nm, the more pure blue coordinates are (0.155, 0.079), which are very close to the blue coordinates of the national television system committee (NTSC) standard (0.14, 0.08). Furthermore the current density, brightness and the luminous efficiency of device with the left CBP of 8 nm and the right CBP of 2 nm are respectively 144.7 mA/cm2, 1065 cd/m2 and 0.93 cd/A.
Magnetic Property of Large-Area Magnetic Nanostructure with Antidot Array on AAO Template
Authors: Huang Chien Han , Wang Jheng Lun , Tsai Jenn Kai , Meen Teen Hang , Wu Tian Chiuan
Published: March 2013

Antidot arrays of various diameters were patterned in permalloy thin films to explore their magnetic behavior. Porous anodic alumina had been used as a template to fabricate magnetic films with antidot array. Permalloy had been fabricated by depositing Ni80Fe20onto anodic alumina membrane templates. The film thickness was 30 and 40 nm and the diameters of antidot varied from 200 to 350 nm. The coercivity of the antidot arrays is greater than that of unpatterned films and shows weak dependence on antidot diameter. The increase of the pore diameter was suggested to enhance domain wall pinning. The coercivity reaches a maximum value for the antidot array with the smallest pore diameter and reduces to an almost constant value for the antidot arrays with larger pore diameters.
Fabrication of Flexible Dye-Sensitized Solar Cells by Pressurization-Transfer Technique
Authors: Chao Shi Mian , Meen Teen Hang , Jhuo Yi Ting , Tsai Jenn Kai , Wang Jun Xiang , Chen Wen Ray , Wu Tien Chuan , Huang Chien Jung
Published: March 2013

In this study, the flexible dye-sensitized solar cell is fabricated by pressurization-transfer technique, which involves assembling TiO2 films on ITO/PEN flexible substrates via high temperature sintering. During the experiment, we change not only the film thickness and structure of TiO2 but also the dye of working electrodes. The surface morphology of TiO2 films are examined by field emission scanning electron microscopy (FE-SEM). The analyses of UV-Vis show that N3 dye could be adsorbed on the TiO2 thin films, and the TiO2 thin film with scattering layer has better absorption than that of without scattering layer. The current-voltage of the DSSC is illuminated by the solar simulator whose incident light intensity was 1000 W/m2. These results indicate that the best efficiency of flexible dye-sensitized solar cell with high-temperature sintering TiO2 film and scattering layer is 6.13%.
Shear Toughness Evaluation of Solder Joints for the Reliability Tests
Authors: Hsu Chao Ming , Lin Ah Der , Hung Tsung Pin , Chiu Wen Chun , Kuang Jao Hwa
Published: March 2013

The effects of isothermal aging and the thermal cycling loading on the shear toughness of different solder materials and ball sizes have been explored. The difference between shear toughness values of traditional Sn/37Pb eutectic solder ball joints and the lead free Sn/3.0Ag/0.5Cu solders are chosen for discussion. The experiment measurements under the ball shear test (BST) have been compared and studied for both solder joints. The fracture behaviors of the solder joints under the high temperature aging and thermal cycling testing are examined by scanning electron microscope (SEM). The variation of shear toughness of different ball joints reveals that the high temperature aging and thermal cyclic loading reduce the shear toughness significantly. The measured shear toughness values indicate that the Sn/3.0Ag/0.5Cu solder joints have better ductility for the joints undergoing the high temperature aging and the thermal cycle loadings. Based on the measured results, the better reliability for the Sn/3.0Ag/0.5Cu ball joints is expected, due to the aging and cycling load testing.
To Fabricate Bragg Grating on D-Shaped Optical Fibre by Micro-Pressing Method
Authors: Hsu Fang Chang , Chen Farn Tsei , Ho Chi Ting
Published: March 2013

In this paper, we proposed a method to fabricate a D-shaped optical fiber of Bragg surface grating filter component by D-shaped fiber polishing along with photolithography、holographic interference lithography technologies and micro-molding process. The optical fiber was side-polished until it reaches the core of fiber. The master Bragg grating was first fabricated on the positive photoresister by using the holography interference lithography, then the patterned resist was used as a mother mold to transfer the pattern onto a hard polydimethylsiloxane (hPDMS)/ polydimethylsiloxane (PDMS) mold. The gratings pattern on hPDMS/PDMS was then transferred onto the UV polymer on the surface of a D-shaped fiber using a UV replication process. The transmission spectra of the resulting gratings were measured, with test results showing the transmission dip of -17dB , and 3-dB-transmission bandwidth of 9nm.