Alignment between data warehouse design and business strategy

Data warehouse has become a very important tool for supporting the corporate executives in making important decisions in a highly competitive business environment. Data warehouse enables the top management to acquire and analyze integrated data extracted globally across the enterprise. Many organizations are sitting on vast amount of data already accumulated in their operational database. The huge data repository with potential strategic business information can be analysed comprehensively only through the usage of data warehouse system. The main objective of this paper is to systematically review the development and adoption of data warehouse design in business environment and the different models to assess the alignment between information technology strategy and business strategy

Vapor pressure development in a FR4-CU composite structure during solder reflow

This article presents a study on the development of vapor pressure a FR4-Cu composite structure when heated to a solder reflow temperature of 215 °C. Abaqus® finite element software was used to develop a representative two-dimensional model of the composite structure and to simulate moisture absorption and desorption processes. Simulation of transient moisture absorption was performed to predict moisture concentration distribution in the structure after being preconditioned in 85°C/85 % RH environment for 15 days. Simulation of transient moisture desorption was carried out at the solder reflow temperature to predict the redistribution of the moisture. Results of the moisture desorption simulation were used to compute magnitude of the vapor pressure in the structure. It was found that the moisture redistributes itself during the solder reflow process. Moisture concentration in the vicinity of the FR4-Cu interface, below the longer copper trace increases during the solder reflow. The vapor pressure in nearly 70 % of the FR4 material and close to the FR4-Cu interface, below the longer copper trace is almost equal to the saturation pressure of vapor at 215 °C. Distribution of the vapor pressure is very similar to the new distribution of moisture concentration resulting from moisture desorption process

Perbandingan slot siaran tayangan siri animasi tempatan dan antarabangsa: implikasi terhadap industri animasi tempatan / Mohd Nazri Mohd Nasir

Kajian ini adalah untuk melihat perbandingan di antara siri animasi tempatan dan antarabangsa yang disiarkan di televisyen tidak berbayar tempatan yang terdiri daripada enam buah stesen penyiar selama seminggu. Kajian ini juga bertujuan mencari peratus jurang perbezaan antara kedua-duanya melalui kaedah kajian yang diguna sendiri berdasarkan pengamatan yang dilakukan pada situasi yang berlaku terhadap industri animasi tempatan pada masa kini. Disamping itu, sebagai mengenalpasti punca penguasaan siaran siri animasi antarabangsa berbanding tempatan di stesen televisyen tidak berbayar tempatan dengan mengaplikasikan konsep pemasaran dan teori psikologi kanak-kanak yang dipilih atas dasar kesesuaian tajuk ‘Perbandingan Slot Siaran Tayangan Siri Animasi Tempatan dan Antarabangsa: Implikasi terhadap Industri Animasi Tempatan.

Collaborative learning, using Facebook's page and Groups

This study designed, developed and evaluated an ICT artifact, including Facebook's page and groups based on Cruz and Carvalho framework for practicing collaborative learning. All features utilized, be evaluated by observations, Facebook metrics and interviews based on activities and interactions amongst students and all users on Facebook with design science research methodology (DSRM). This study shows students and learners could practice collaborative learning and regulate their knowledge in this platform and enhance their performance and self-regulations

An Analysis of the Institutional Framework of the Commercial Vehicle Rebuilt Industry in Malaysia

Rebuilt industry, also known as remanufacturing, is the practice of taking end-of-life goods and reengineering them back to as new or better condition. In Malaysia, one of significant remanufacturing activities is the automotive remanufacturing or rebuilt commercial vehicle industry. The industry has begun since 1970s, the time when the construction sector was booming. Despite of its importance in bringing to a sustainable development of a country, no studies have been conducted on the effectiveness of the practice in Malaysia. However, the recent problematic issue surrounding the industry has led to the call for this research. The purpose of this study is to explore the effectiveness of the institutional framework of the commercial vehicle rebuilt industry in Malaysia. The results obtained were based on seventeen interviews. All interviews were transcribed and the data were analysed using the content analysis method. The results demonstrated that with the present practice of the institutional framework allows some loopholes within the industry. These loopholes have led to the production of false document and thus excessive number of rebuilt commercial vehicles registered, far greater than the quota given by the Ministry. This issue arose due to unavailability of effective communication mechanisms among the relevant government authorities. This study provides insights into the strengths and weaknesses of the present governance in dealing with the rebuilt commercial vehicle industry in Malaysia. It is important as it opens up various issues that have been lingering within the implementation of the industry.rebuilt industry, automotive remanufacturing, interviews, governance

A trust-based conceptual framework on Open Government Data potential use

Open Government Data (OGD) is a popular initiative by many governments around the world, as part of their Big Data implementation in the public sector. This paper attempts to propose a new model of measuring the level of use of open government data by integrating the Unified Theory of Acceptance and Use of Technology (UTAUT) and trust factors. The proposed model can operably extend the current UTAUT model in the context of OGD and suggest best guidelines for governments to implement OGD more extensively. This paper offers a valuable contribution by proposing a suitable model that measures technology usage in open data context from the perspective of the potential stakeholders

The analysis of lateral stability of tailless CAMAR-3 with winglets

This paper analyses the lateral stability of tailless CAMAR-3 Unmanned Aerial Vehicle (UAV) when its tail fin (i.e. V-tail) is reconfigured to the wingtips. A tailless UAV may have longer endurance time, compared to the present configuration of V-tail. Nevertheless, a tailless UAV may experience reduction in lateral stability due to loss of yaw control surfaces. In the preliminary design of tailless-winglets UAV, semi-empirical method is applied to estimate the aerodynamic lateral stability derivatives, in order to investigate the stability of both configurations of UAV. ThenThen, a dynamic test rig based on pure yawing motion is built, to measure the lateral stability derivatives of C_(n_β ) and C_(n_r ) in transient conditions. The time response data of pure yawing oscillation give the natural frequency and damping ratio that describe the aerodynamic derivatives as a result from wind-on and wind-off tunnel tests. The result indicates that UAV with either configurations are laterally stable. However, the tailless-winglets CAMAR has a 13.86% reduction in aerodynamic yawing-moment-due-to-sideslip derivative C_(n_β ), compared to CAMAR-3 with V-tail; whereas the aerodynamic yawing-moment-due-to-yaw-rate derivative C_(n_r ) of tailless-winglets CAMAR is 5.55% lesser than that of the CAMAR-3 with V-tail. The lateral stability degrades, as expected, caused by tail stabilizer removal. In conclusion, the idea of tail removal and using winglets as the directional controllers is feasible

Experimental study of composite cold-formed steel c-section connected back-to-back / Mohamad Rohaidzat Mohamed Rashid, Noorsaidi Mahat and Nazri Nasir

This thesis describes the results of an experimental investigation involving the testing of push out specimens. This study was aimed to develop a new type of shear connector that is easy to construct for a composite beam. The test specimens were designed to study the effect on the different shapes of shear connectors that have been applied for cold-formed steel lipped C-sections connected back-to-back. The test specimens have been categorized into two series which are four numbers of specimens for the first series and two numbers of specimens for the second series. For the first series variations of shear transfer mechanisms were tested, where prefabricated bent-up tabs of square shape and prefabricated bent-up tabs of triangular shape were employed at the surface of the flanges embedded in the concrete to provide shear transfer capacity. Second series of specimens were selected based on the results from the first series. The primary differences between the specimens are the shapes of the shear connectors and angles of bent-up. Failure mechanisms also were observed during testing. In this study, longitudinal cracks were observed from most of the specimens that were tested. Results show that the shear capacities of specimens with proposed type of shear connectors increase and the slips reduce compare to control specimen that only relies on natural bond (i.e. without shear connector) between steel and concrete to resist shear. Between the two types of shear connectors used, prefabricated bent-up tab (square shape) provides better performance in-term of strength, compare to the prefabricated bent-up tab (triangular shape). Concerning the angle of bent-up tab, higher degree of bent-up gives better performance

Big data initiatives by governments – issues and challenges : A review

In this modern era, we are living in the age of big data. All over the world recently, the organizations including the government is taking initiative to adapt and implement big data. Nowadays, government do not want to only collect data, but they want to understand the meaning and the significance of the data, as well as to analyze the data and aid them in making strategic decisions. This paper is aimed to review on the definition of big data and e-government specifically, also reviews the initiatives of big data on government in several countries, including highlights on issues and challenges peculiar to the big data initiatives

Upgrading for overhead crane anti-sway method using variable frequency drive

The paper discusses about upgrading the overhead crane anti-sway method base on the induction motor torque control from rotor resistance starter to variable frequency drives (VFDs). The upgrading included two phases. The phase 1 is to identify the performance of the overhead crane operation on anti-sway method base on the induction motor torque control using rotor resistance starter (old existing motor starter). The phase 2 is to identify the performance of the overhead crane operation on anti-sway method base on the induction motor torque control that use a variable of frequency drive (new upgrading motor starter). The primary equations connecting tractive force and load sway angle, which the motor torque control law is based on is designed for 0% load wobble at the end of the journey. The words accelerating and braking have been written. Outcomes of modelling the behaviour of a trolley-load of two masses for the normal overhead crane load ratios, a system is described weight to the length of the rope, which supports the hypothesis concerning the feasibility of direct load anti-sway control ON and OFF for regulation of motor for overhead cranes