Interference coordination for LTE-advanced and FM broadcasting interoperability

The surest way to guarantee that multiple wireless systems can concurrently exist harmlessly, when operating in the same or adjacent channel, is by analyzing spectrum overlapping. This paper proposes a more accurate model to evaluate the interference power from co-channel and adjacent channel of orthogonal frequency division multiplexing-based long term evolution-advanced (LTE-Advanced) towards broadcasting frequency modulation systems at 800 MHz. Power spectral density overlapping factor is employed, and closed form of the interference power loss is derived. Numerical results demonstrate that the proposed method evaluates more exact interference power than the advanced minimum coupling loss (A-MCL) method, where the co-channel and adjacent channel interference powers are reduced by 1.3 and 3 dB, correspondingly, compared to that obtained using the AMCL method. This decreases the minimum separation distance between the two systems, which can eventually lead to efficient radio spectrum resources utilization

Integration of Workflow Process in a Telecommuting Web Application Module to Manage IT Project

Integration of Workflow Process in a Telecommuting Web Application Module to Manage IT Project as the project is titled is initiated to develop an application that enable project management of particularly Information Technology project to be done remotely thus enable development to be done in telecommuting environment. In addition, the project will also implement Workflow Process to support business process and information process of project management. Such application is important to develop project development environment of higher productivity and greater flexibility. The project will also be based on standard Information Technology Project Management procedure. The project also aims to develop a web application module that is capable handling one single it project that allows collaboration between project manager and the development team with standard online web page look and feel. At the current moment, such application is only available in Lotus Notes environment. The scope of the study is to design a system process based on project management standard procedures to be fully automated and implemented with minimum human assistant and to ensure reusability of the application to other similar Information Technology Projects situation. The product differs from any other project management tool in away that it is design based on the existing standard rather than some business specific process which will enable it to be use in a organization that aim to comply of existing project management standard. The product differs in a way that it is developed using open source technology which allow the module to be reusable without any fees since that most project management is usually charged per access basis. The execution of this project will be based on a waterfall development model. The design process of the workflow will based on communication based methodologies stem Winograd/Flores "Conversation for Action Model" and activity based modeling after considering the objective of the project and compatibility of both of the methodology to be used on top of one another in process modeling. Based on preliminary study, previous researches that will be further discuss in preliminary study have shown the importance of good project management is essential in determining project success

Rationalism in Harun Nasution’s Epistemology of Islamic Law

The term 'epistemology' is a term directly related to the field of philosophical debate. As one of the branches of philosophy, it studies science in terms of its definition, the establishment of its types, the determination of its sources and channels and the identification of its limits and limitations. Although these epistemological questions are commonly used in the disciplines of philosophy and the sciences, for some scholars they are also relevant and useful in the field of Islamic law. The following brief study will attempt to elaborate on the epistemological theory of Islamic law by analyzing the thoughts of a prominent Islamic scholar, Harun Nasution, an expert in Islamic philosophy and theology

Keperluan amalan tadbir urus korporat dalam penjanaan dana wakaf pendidikan tinggi

Kemunculan wakaf pendidikan tinggi merupakan satu inisiatif baru dan hangat diperdebatkan dalam memperkasakan pendidikan tinggi negara. Namun, keperluan kepada amalan tadbir urus perlu diberi perhatian dalam penjanaan dana wakaf. Kemajuan atau kemunduran sesebuah institusi bergantung kepada sistem tadbir urus yang dijalankan. Dengan tadbir urus yang adil dan sistematik secara tidak langsung dapat meningkatkan prestasi dan perkembangan yang berterusan bagi institusi wakaf pendidikan tinggi. Justeru, artikel ini menerangkan secara terperinci elemen amalan tadbir urus korporat dalam penjanaan dana wakaf pendidikan tinggi. Di samping itu, artikel ini turut membincangkan keperluan amalan tadbir urus korporat dalam penjanaan dana wakaf pendidikan tinggi bagi memantapkan lagi pengurusan yang lebih efisien dan sistematik

Rancang Bangun 3D Printer FDM Model Cartesian Berbasis Arduino

Pembuatan prototype secara manual menelan banyak waktu, bahan baku, dan tidak akurat. Solusi pembuatan prototype agar cepat dan detail adalah 3D printer. Penelitian tentang 3D printer oleh peneliti sebelumnya masih terdapat kekurangan mengenai akurasi dimensi produk, serta terjadi stringing. Penelitian rancang bangun 3D printer FDM model Cartesian berbasis arduino ini dilaksanakan untuk menghasilkan rangka 3D printer yang kokoh, akurasi yang baik, dan mengatasi stringing. Metoda yang digunakan adalah rancang bangun, dimana mesin 3D printer dirancang dan dibuat, kemudian diuji performanya. Desain 3D printer memiliki dimensi 434 x 470 x 610 mm dengan area kerja 220 x 220 x 233 mm Rangka yang dibuat disimulasikan dengan FEA dengan hasil safety factor 15 ul. Kontrol 3D printer menggunakan Arduino Mega 2560  untuk pengoperasiannya. Hasil pengujian performa 3D printer telah berhasil menghilangkan stringing dengan akurasi produk sumbu X sebesar  99,48%, sumbu Y 99,24%, dan sumbu Z 98,46%

Integration of Workflow Process in a Telecommuting Web Application Module to Manage IT Project

Integration of Workflow Process in a Telecommuting Web Application Module to Manage IT Project as the project is titled is initiated to develop an application that enable project management of particularly Information Technology project to be done remotely thus enable development to be done in telecommuting environment. In addition, the project will also implement Workflow Process to support business process and information process of project management. Such application is important to develop project development environment of higher productivity and greater flexibility. The project will also be based on standard Information Technology Project Management procedure. The project also aims to develop a web application module that is capable handling one single it project that allows collaboration between project manager and the development team with standard online web page look and feel. At the current moment, such application is only available in Lotus Notes environment. The scope of the study is to design a system process based on project management standard procedures to be fully automated and implemented with minimum human assistant and to ensure reusability of the application to other similar Information Technology Projects situation. The product differs from any other project management tool in away that it is design based on the existing standard rather than some business specific process which will enable it to be use in a organization that aim to comply of existing project management standard. The product differs in a way that it is developed using open source technology which allow the module to be reusable without any fees since that most project management is usually charged per access basis. The execution of this project will be based on a waterfall development model. The design process of the workflow will based on communication based methodologies stem Winograd/Flores "Conversation for Action Model" and activity based modeling after considering the objective of the project and compatibility of both of the methodology to be used on top of one another in process modeling. Based on preliminary study, previous researches that will be further discuss in preliminary study have shown the importance of good project management is essential in determining project success

HF Radar Signal Inversion for Wind and Swell Ocean Waves

Although High Frequency (HF) radars are used routinely for measuring ocean surface currents at high spatial and temporal resolution, their utilization for estimating ocean wave spectra is still limited, mainly because of the lack of extensive evaluation of the accuracy of wave inversion models, and lack of well-established methods, especially if swell is present in the area of study. Estimation of surface currents is based on analyzing the signal of the first-order Bragg peak, while extraction of wave information requires analysis of the signal contained in the second-order continuum of the Doppler spectra; its quality depends on a number of environmental (i.e., noise levels, ocean wave energy) and system-based (i.e., frequency of operation, range, azimuthal angle, etc.) parameters. A number of theoretical and empirical inversion methods have been developed to estimate wave parameters from the HF radar data, with the latter one being more attractive for routine operations due to easier implementation and reduced computational cost. Further, most research on HF radar wave inversion has been limited todissertation, a hybrid radar wave inversion method that treats swell and wind waves separately is introduced and evaluated using a single Very High Frequency (VHF) 48 MHz radar site, two High Frequency (HF) 12 MHz radar sites, and in situ wave measurements. Using a single VHF (48 MHz) covering the nearshore and in situ directional wave data from ranges between 0.7 and 4.2 km and beam angles between 22.3 and 55.8 deg, it was concluded that wind wave inversion of the 2nd order spectra requires normalization by using Barrick’s (1977b) weighting function. This removes no wind-wave energies from the second harmonic and corner reflection peaks and leads to better wave estimations. However, at lower operating frequencies the normalization removes some of the wind wave energy something that needs to be accounted for. Application of the weighting function in the wind wave inversion model results in empirical wind-wave regression coefficient that is not wave frequency-dependent and of similar in magnitude to those found in studies that used different radar operating frequencies but included the weighting function in the inversion. This is further confirmed using data from 12 MHz system sampling ocean conditions with significant swell energy being present at times. The applicability of the empirical wave inversion method to increase the accuracy of the estimation of ocean wave spectra and wave bulk parameters by accounting for the presence of swell waves is examined and presented. The ability of the method to estimate wave directional spectra and bulk wave parameters from inverting Doppler spectra are investigated. Doppler spectra from single beam/site and two beams/sites WERA HF radar system operated with frequency 12 MHz are used over a one-month (March 30th-April 27th, 2012) data collection. Within the radar footprint, in situ wave spectra were collected using a buoy deployed offshore of the north coast of Cornwall in the UK, and used for comparisons. To examine the influence of swell, three different swell inversion models developed by Lipa et al. (1981), Wang et al. (2016), and an empirical method, denoted as LPM, WFG, and EMP respectively are presented and evaluated. The methods were evaluated using (1) a single beam from a single radar site, (2) two beams from a single radar site, and (3) two beams from two radar sites intersecting each other at the buoy location. The LPM swell method for two beams from two sites scenario was found to be the most accurate in estimating swell parameters (RMS Error of 0.24m), the inverted swell height correlated well with the partitioned in situ swell measurements. The swell spectrum can be reconstructed from the inverted swell wave heights and combined with the wind wave inversion results to create the total directional wave spectrum. The method presented in this dissertation is fully dependent on information from HF radar data and does not no need calibration against in situ data for implementation; it can be applied to any beam forming system and operating frequency