Back calculation Anti Windup PID controller on Several Well-Known Tuning Method for Glycerin Bleaching Process Temperature Regulation

The aim of this paper is to comprehend the performance of back calculation anti windup scheme with difference tracking time constant, Ta on Proportional – Integral - Derivative (PID) controller for improving temperature regulation of glycerin bleaching process.  Several available well tuning methods including Ziegler Nichols (ZN), Internal Model Control (IMC) and Integral Square Error (ISE)-Load are used and analyzed. The performance of the controller tuning methods are  compared based on percentage of overshoot, settling time, rise time and time to recovery on the presence of disturbance. From the results, the best performance of temperature regulation for glycerin bleaching process can be reached by using ISE-Load tuning with tracking time constant, Ta equal to derivative time constant, Td.&nbsp

Pendekatan Wasatiyyah dalam Berfatwa: antara Keterikatan Literalis dengan Kelonggaran Liberalis

 Dalam era saat ini kemajuan ilmu pengetahuan dan teknologi, banyak masalah baru muncul, yang dikategorikan sebagai hukum Islam kontemporer. Putusan dari isu-isu tersebut memerlukan pendekatan ijtihad kolektif, sesuai dengan konteks saat ini untuk memastikan kesejahteraan manusia. Dengan demikian, artikel ini membahas pendekatan fatwa. Pada dasarnya, ada berbagai pendekatan antara dua faksi pemikiran, pendekatan yaitu ketegasan dan pendekatan kelonggaran. Namun, antara kedua pendekatan bertentangan, telah muncul media yang dikenal sebagai pendekatan wasatiyyah dalam mengeluarkan fatwa. Pendekatan ini secara signifikan memberikan solusi yang masuk akal untuk mengatur fatwa bebas dari kecenderungan menjadi terlalu ketat atau terlalu longgar dan tidak pernah menyimpang dari tujuan syariah

Human capital development with competitive advantages for uitm undergraduates in banking industries / Mohd Sukri Yahya

Nowadays there is many bank in the Malaysia market, they were very competitive in order to sustain and stable in the Malaysia financial market. To continually growth in the market, they must have a strong team which consisted of talented and competitive staffs. The aim of this research is to investigate the relationship between human capital development as measure by knowledge, innovative, creativity and interpersonal skill and the competitive advantage in the banking industries. This research also attempts to examine the most determinant factors that will influence competitive advantage for those who are interested working in banking industries. A question survey was conducted to UiTM Shah Alam (main campus) together with Puncak Alam, UiTM Dungun, Terengganu and UiTM Malacca using mainly quota sampling method. Data were gathered from 709 respondents for hypothesis testing. Descriptive statistic were reported, followed by reliability analysis, Pearson Correlation, T-test, multiple regression,Kruskal Walis, ANOVA and correlation analysis. Finding showed that all of the elements human capital developments have significant relationship with competitive advantage whereby knowledge appears to have the highest strength of correlation. Differences in program among the respondents contribute to the significant of perception toward competitive advantage. Thus, the study suggests that UiTM should upgrade module of study which it can be a one of a main factor that can resolve the said problem. Future research might consider taking other dimensions of ciompetitive advantage suggested by other researchers in order to explore the multiple dimensions of competitive advantage

Combined effects of water absorption due to water immersion, soil buried and natural weather on mechanical properties of kenaf fibre unsaturated polyester composites (KFUPC)

Kenaf Fibre reinforced composites have been gaining wide use in the variety of applications. The performance of these composites may suffer when the material is exposed to adverse environments for long periods of time. Kenaf fibre unsaturated polyester composites (KFUPC) were subjected to three environmental tests: water immersion, soil buried and natural weather tests, in order to study the effect of water/relative humidity absorption on the mechanical properties of specimens containing 10, 20 and 30% by weight of fibre content. Tensile strength and modulus of the composites were determined. A decrease in tensile properties of the composites was demonstrated, showing a great loss in mechanical properties of the humid samples compared to the dry samples. The percentage of moisture uptake increased as the weight percentage of fibre is increased due to the high cellulose content. The water absorption pattern of these composites was found to follow Fickian behavior

Review of kenaf fiber reinforced polymer composites

General characteristics of kenaf fibers and mechanical properties of its polymer composites (dependently on the environmental conditions) as well as applications directions of such materials have been presented

The bonded macro fiber composite (MFC) and woven kenaf effect analyses on the micro energy harvester performance of kenaf plate using modal testing and Taguchi method

The demand on wind energy application will continue to increase as fossil fuel prices keep increasing and the reservoir keeps decreasing. In wind energy, wind turbine application should be properly selected. The material selection for turbine blade fabrication is highlighted as well in recent research. For green material application, the usage of natural fiber reinforced composite, especially kenaf fiber, in the fabrication of wind turbines needs to be given due attention. Woven and unwoven kenaf fiber is employed to fabricate composite plates which replicate the simple turbine blade model. At the same time, Macro Fiber Composite (MFC) is attached to the kenaf plates for micro energy harvester purposes. There are two methods to attach the MFC used in this study which are surface bonded and embedding into the plate. In order to investigate the effects of bonding MFC technique, modal Testing analysis and Taguchi method is employed. It is found out that the damping percentage of both woven and unwoven kenaf plates increase at 100 % and 50 % respectively when bonded with MFC on their surfaces. Bonded technique is suggested as the most influenced factor in micro energy harvesting at the vibration range of 20 to 60 Hz. It summarized that, the kenaf woven type, the distance from structure neutral axis, the stiffness of structure, the excitation vibration and the neutral frequency of a structure are highlighted as the factors influencing the performance of micro energy harvester as well

Water absorption behaviour of kenaf reinforced unsaturated polyester composites and its influence on their mechanical properties

Fibre reinforced composites have gained use in a variety of applications. The performances of these composites may suffer when the material is exposed to adverse environments for a long period of time. Kenaf fibre reinforced unsaturated polyester composites were subjected to water immersion tests in order to study the effects of water absorption on the mechanical properties. Composites specimens containing (10%, 20%, and 30%) weight percentages of fibre were prepared. Water absorption tests were conducted by immersing these specimens in a distilled water bath at 25°C for four months. The tensile properties of the specimens immersed in water were evaluated and compared with the dry composite specimens. A decrease in the tensile properties of the composites was demonstrated, indicating a great loss in the mechanical properties of the water-saturated samples compared to the dry samples. The percentage of moisture uptake was also increased as the percentage of the fibre weight increased due to the high cellulose content. The water absorption pattern of these composites was found to follow the Fickian behaviour

The effects of weathering on mechanical properties of kenaf unsaturated polyester composites (KFUPC).

Kenaf Fibre reinforced composites have been gaining wide use in the variety of applications. The performance of these composit es may suffer when the material is exposed to adverse environments for long periods of time. Kenaf fibre unsaturated polyester composites (KFUPC) were subjected to three environmental tests: water immersion, soil buried and natural weather tests, in order to study the effect of water/relative humidity absorption on the mechanical properties of specimens containing 10, 20 and 30% by weight of fibre content. Tensile strength and modulus of the composites were determined. A decrease in tensile properties of the composites was demonstrated, showing a great loss in mechanical properties of the humid samples compared to the dry samples. The percentage of moisture uptake increased as the weight percentage of fibre is increased due to the high cellulose content. The water absorption pattern of these composites was found to follow Fickian behavior

The bonded macro fiber composite (MFC) and woven kenaf effect analyses on the micro energy harvester performance of kenaf plate using modal testing and Taguchi method

The demand on wind energy application will continue to increase as fossil fuel prices keep increasing and the reservoir keeps decreasing. In wind energy, wind turbine application should be properly selected. The material selection for turbine blade fabrication is highlighted as well in recent research. For green material application, the usage of natural fiber reinforced composite, especially kenaf fiber, in the fabrication of wind turbines needs to be given due attention. Woven and unwoven kenaf fiber is employed to fabricate composite plates which replicate the simple turbine blade model. At the same time, Macro Fiber Composite (MFC) is attached to the kenaf plates for micro energy harvester purposes. There are two methods to attach the MFC used in this study which are surface bonded and embedding into the plate. In order to investigate the effects of bonding MFC technique, modal Testing analysis and Taguchi method is employed. It is found out that the damping percentage of both woven and unwoven kenaf plates increase at 100 % and 50 % respectively when bonded with MFC on their surfaces. Bonded technique is suggested as the most influenced factor in micro energy harvesting at the vibration range of 20 to 60 Hz. It summarized that, the kenaf woven type, the distance from structure neutral axis, the stiffness of structure, the excitation vibration and the neutral frequency of a structure are highlighted as the factors influencing the performance of micro energy harvester as well

The dynamics of personal ethics and ethical climate in public relations practitioners’ decision making

This study examines the contemporary pragmatic public relations ethics that focuses on decision making to relate public relations practitioners’ ethics with their organizational ethics using Grunig and Hunt (1984) excellence theory. The aim of this study is to identify the association and the strength of the association between public relations practitioners’ ethical evaluation and ethical climate of the organization in decision-making process. This study used a structured questionnaire to measure the three different parameters in ethical evaluation (reasoning, consideration, and judgment) and the ethical climate of the organization simultaneously. The association between them is later identified from the Pearson correlation test. Respondents selected were 100 people who actively practicing public relations around Kota Kinabalu. The study revealed a positive, weak correlation as the indication that the score of ethical evaluation can but not always be used to predict the score of ethical climate. In ethically challenging decision making, one’s personal ethics is barely associated with organization’s ethical climate. Furthermore, the association shows that public relations practitioners are predominantly evaluate the situation and make ethical decision in ethical organization, though dilemmas are tempting and dragging towards unethical decision. In such inconsistency between practitioners and their organization, it is problematic because the interpersonal and organizational aspects in ethical decision making can help the organization to pursue an excellent, ethical public relations practice when addressed strategically