Kepercayaan Mahasiswa terhadap Kerajaan

The level of trust in government is important because its reflect the support of people to their government. The higher level of trust will give government more power to implement development to the country. Moreover, government that gain higher confidence from the people's can play their role effectively compared to the government who failed to gain support from them. This paper will discuss the level of trust among local universities students' in Malaysia. Their opinion is crucial because they are our future leader

Perencanaan Program Hidrolika pada Sumur Eksplorasi F di Lapangan M

Salah satu tantangan dalam pemboran deepwater biaya sewa rig yang sangat tinggi,sehingga kegiatan pemboran diperlukan secepat mungkin untuk menghemat biaya. Sumureksplorasi F merupakan sumur yang terletak di Lapangan M dengan target kedalaman 14,030 ftpada struktur Ngimbang Karbonat. Dari studi G&G dan berdasarkan sumur offset dapat diketahuibahwa lapisan yang akan ditembus adalah Lidah Shale hingga kedalaman 4,650 ft, kemudianPaciran hingga kedalaman 5,660 ft, lalu Cepu Shale hingga kedalaman 10,030 ft, dan yangterakhir adalah Ngimbang Karbonat hingga kedalaman 14,030 ft. Terlihat bahwa ada banyakkemungkinan masalah terkait hole cleaning dikarenakan lapisan shale yang panjang danditambah dengan masalah mud window yang tipis. Untuk mengatasi masalah hole cleaning danmud window yang tipis, pada trayek 26” dilakukan pemompaan 2200 GPM dengan konsentrasicutting yang dijaga sebesar 10% dan ROP yang mampu dicapai adalah 291 fph. Kemudian padatrayek 17-½” dilakukan pemompaan 1600 GPM dengan konsentrasi cutting yang dijaga sebesar3% dan ROP yang mampu dicapai adalah 170 fph. Lalu pada trayek 14-¾” dilakukan pemompaan1300 GPM dengan konsentrasi cutting yang dijaga sebesar 3% dan ROP yang dapat dicapaisebesar 208 fph. Selanjutnya adalah pada trayek 12-¼” dilakukan pemompaan 1200 GPM dengankonsentrasi cutting yang dijaga sebesar 3% dan ROP yang mampu dicapai sebesar 306 fph. Lalupada trayek 10-7/8” dilakukan pemompaan sebesar 832 GPM dengan konsentrasi cutting yangdijaga sebesar 3% dan ROP yang dapat dicapai sebesar 285 fph. Dan trayek yang tera khiradalah 8-½” dimana dilakukan pemompaan sebesar 768GPM dimana dijaga agar konsentrasicutting sebesar 3% dengan ROP yang mampu dicapai adalah 433 fph. Penentuan lajupemompaan pada masing-masing trayek dilakukan berdasarkan beberapa parameter yangmenjadi acuan laju pemompaan maksimum diantaranya adalah flow regime di annulus, ECD danspesifikasi peralatan bawah permukaan khususnya BHA

Comparison Study On Pinch-Hitting Vibration Signal Analysis for Automotive Bearing: I-KazTM and I-Kaz 3D

Rotating machines are now an essential part of the automotive industry. Meanwhile, a bearing is playing the most important component of rotating machinery. To sustain the system's smooth running, maintenance methods such as preventive maintenance, breakdown maintenance, and predictive maintenance are used. Under preventive maintenance, vibration analysis is used to diagnose machines bearing faults. The main objective is to recognize bearing defects in a mechanical device by acquiring signals from the bearing using data acquisition hardware. This analysis is conducted under various load torque conditions, speeds, and defect types. A modular hardware configuration consisting of an accelerometer acquires the vibration signal. The signals are analyzed by using I-kazTM and I-kaz 3D signal analysis and its main objective is to observe the degree of dispersion data from its mean point.  This analysis resolves the issues associated with time domain analysis. This pinch-hitting analysis research was conducted in two stages.  The first stage is an experimental process that uses 3 types of bearings, the healthy (BL), inner race fault (IRF), and defect at outer race (ORF) bearing on the Machine Fault Simulator and forces with a different type of speed (1000, 1500 and 2500 rpm) and load variation (0.0564, 0.564 and 1.1298 N-m). In the second stage, computing the coefficient value and plots of signal’s I-kazTM and I-kaz 3D based on the bearings type were done accordingly. As a result, the analysis for detecting inner race fault, the deviation percentage averages calculation obtained the I-kazTM coefficient shows a better result with 96.86% by comparing to the I-kaz 3D that achieves 94.20%. Similarly, for the outer race defect, I-kazTM lead with 65.40% compared to I-kaz 3D with only 54.82%.  &nbsp

Comparison Study On Pinch-Hitting Vibration Signal Analysis for Automotive Bearing: I-KazTM and I-Kaz 3D

Rotating machines are now an essential part of the automotive industry. Meanwhile, a bearing is playing the most important component of rotating machinery. To sustain the system's smooth running, maintenance methods such as preventive maintenance, breakdown maintenance, and predictive maintenance are used. Under preventive maintenance, vibration analysis is used to diagnose machines bearing faults. The main objective is to recognize bearing defects in a mechanical device by acquiring signals from the bearing using data acquisition hardware. This analysis is conducted under various load torque conditions, speeds, and defect types. A modular hardware configuration consisting of an accelerometer acquires the vibration signal. The signals are analyzed by using I-kazTM and I-kaz 3D signal analysis and its main objective is to observe the degree of dispersion data from its mean point.  This analysis resolves the issues associated with time domain analysis. This pinch-hitting analysis research was conducted in two stages.  The first stage is an experimental process that uses 3 types of bearings, the healthy (BL), inner race fault (IRF), and defect at outer race (ORF) bearing on the Machine Fault Simulator and forces with a different type of speed (1000, 1500 and 2500 rpm) and load variation (0.0564, 0.564 and 1.1298 N-m). In the second stage, computing the coefficient value and plots of signal’s I-kazTM and I-kaz 3D based on the bearings type were done accordingly. As a result, the analysis for detecting inner race fault, the deviation percentage averages calculation obtained the I-kazTM coefficient shows a better result with 96.86% by comparing to the I-kaz 3D that achieves 94.20%. Similarly, for the outer race defect, I-kazTM lead with 65.40% compared to I-kaz 3D with only 54.82%.  &nbsp

Impact of Salicide and Source/Drain Implants on Leakage Current and Sheet Resistance in 45nm NMOS Device

In this paper, we investigate the impact of Source/Drain (S/D) implant and salicide on poly sheet resistance (RS) and leakage current (I Leak ) in 45nm NMOS device performance. The experimental studies were conducted under varying four process parameters, namely Halo implant, Source/Drain Implant, Oxide Growth Temperature and Silicide Anneal Temperature. Taguchi Method was used to determine the settings of process parameters. The level of importance of the process parameters on the RS and I Leak were determined by using analysis of variance (ANOVA). The fabrication of the devices was performed by using fabrication simulator of ATHENA. The electrical characterization of the device was implemented by using electrical characterization simulator of ATLAS. These two simulators were combined with Taguchi method to aid in design and optimizing the process parameters. The optimum process parameter combination was obtained by using the analysis of signal-tonoise (S/N) ratio. In this research, the most effective process parameters with respect to poly sheet resistance and leakage current are silicide anneal temperature (88%) and S/D implant (62%) respectively. Whereas the second ranking factor affecting the poly sheet resistance and leakage current are S/D implant (12%) and silicide anneal temperature (20%) respectively. As conclusions, S/D implant and silicide annealtemperature have the strongest effect on the response characteristics. The results show that the R S and I Leak after optimizations approaches are 42.28□□ and 0.1186mA/□m respectivel

A Review of Forensic Entomology Cases at Ipoh Hospital and Hospital Universiti Kebangsaan Malaysia for the Year 2003

Forensic entomology was utilized to determine the postmortem interval of eleven forensic cases sentfor autopsy examination at Ipoh Hospital and Hospital University Kebangsaan Malaysia between of Januaryto December 2003. Sixth species of sarcosaprophagous flies: Chrysomya megacephala, Chrysomya rufifacies,Chrysomya villeneuvi, Chrysomya nigripes, Synthesiomya nudiseta and a sarcophagid fly were found amongthe maggot specimens received by the Forensic Entomology Laboratory, Department of Parasitology &Medical Entomology, Universiti Kebangsaan Malaysia. Those maggots were collected from dead bodiesfound among others in wrapped in gunny bags, around water tank, hanged with black nylon clothes, insidehome, beside road, drowning in lombong and an estate. Ch. megacephala was the main species found in eightcases examined. Postmortem Interval (PMI) estimated from the cases varied from one day to 10 days

Virtual Machine based Autonomous Web Server

Enterprises are turning to Internet technology to circulate information, interact with potential customers and establish an e-commerce business presence. These activities are depending highly on Web server and maintaining good server security has been a requirement for avoiding any malicious attacks especially web defacements and malware. Web server administrators should be alert and attentive to the status of the server at all time. They need to be persistent in monitoring the server in order to detect any attempted attacks. This is an advantage for a web server that is maintained by a big company that has a big budget to hire a knowledgeable web server administrator, for a new established small company it will only burden their expenses. To overcome this problem, this paper proposes a low cost system called Autonomous Web Server Administrator (AWSA) that is fully developed using open source software. AWSA combines several computing concepts such as Virtual Machine, Intrusion Detection System and Checksum. AWSA offers a Virtual Machine based Web server that has the ability to automatically detect intrusions and reconstruct corrupted data or the file system without any human intervention

Vegetative-phase growth performance of rice (Oryza sativa L.) cultivated using hydroponic system

Rice (Oryza sativa L.) is the most important staple food for many countries including Malaysia. But the country is still relying on the import to meet its domestic demand. Though significant public resources allocated for the rice industry, rice cultivation is still perceived to be uneconomical and associated with poverty. Therefore, a hydroponic system is seen as an alternative rice cultivation system that possibly be able to overcome common problems encountered in conventional and traditional paddy cultivation such as irrigation systems, limited cultivation area, control of nutrient inputs, control of pests, and loss of community interest particularly the new generation towards paddy cultivation. This net house study which one of the objectives was conducted to examine the vegetative growth of two local rice varieties under hydroponic condition. The experiment was a split plot design with nutrient solution concentration as the main plot, and the subplot is a local rice variety consisting of low land variety TQR-8 Sri Aman and upland rice variety called as ‘Tadong’. Each treatment was replicated in four plants or pots. A two-way analysis of variance (ANOVA) was performed to determine the effect of nutrient solution concentration and variety on rice growth cultivated using hydroponic system. The results revealed that the hydroponically grown rice of TQR-8 Sri Aman has greater tillering ability compared to Tadong for both NCSs. On the other hand, Tadong variety showed higher plant height than TQR-8 Sri Aman grown under hydroponic system. In addition, interaction of variety and nutrient solution concentration was significantly difference on tiller number and plant height. Further analysis should be conducted to evaluate the yield and feasible of the rice grown using hydroponic system

Optimal solution in producing 32-nm CMOS technology transistor with desired leakage current

The objective of this paper is to optimize the process parameters of 32-nm CMOS process to get minimum leakage current. Four process parameters were chosen, namely: (i) source-drain implantation, (ii) source-drain compensation implantation, (iii) halo implantation time, and (iv) silicide annealing time. The Taguchi method technique was used to design the experiment. Two noise factors were used that consist of four measurements for each row of experiment in the L9 array, thus leading to a set of experiments consisting of 36 runs. The simulator of ATHENA and ATLAS were used for MOSFET fabrication process and electrical characterization, respectively. The results clearly show that the compensation implantation (46%) has the most dominant impact on the resulting leakage current in NMOS device, whereas source-drain (S/D) implantation was the second ranking factor (35%). The percent effects on signal-to-noise ratio (SNR) of silicide annealing temperature and halo implantation are much lower being 12% and 7%, respectively. For the PMOS device, halo implantation was defined as an adjustment factor because of its minimal effect on SNR and highest on the means (43%). Halo implantation doping as the optimum solution for fabricating the 32-nm NMOS transistor is 2.38×10¹³atom/cm³. As conclusion, this experiment proves that the Taguchi analysis can be effectively used in finding the optimum solution in producing 32-nm CMOS transistor with acceptable leakage current, well within International Technology Roadmap for Semiconductor (ITRS) prediction