Analisis dan Perancangan Sistem Informasi Registrasi dan Keanggotaan Klub

Tujuan penelitian ini adalah untuk menganalisis sistem registrasi dan kemudian merancang sistem registrasi dan keanggotaan pada Klub sehingga mempermudah pengelolaan data dan memperoleh informasi secara cepat yang pada akhirnya akan meningkatkan kualitas pelayanan dan fasilitas pada Klub. Metodologi yang akan digunakan dalam penulisan ini adalah metode analisis dan metode perancangan. Metode analisis terdiri dari studi kepustakaan yang merupakan penelitian yang dilakukan dengan mengumpulkan data secara teoritis yang berhubungan dengan masalah yang menjadi objek penelitian dan diperoleh dari literatur-literatur serta buku-buku dari perpustakaan yang digunakan sebagai landasan teori, survey atas sistem yang sedang berjalan merupakan penelitian langsung pada Klub, dan studi lapangan yang dilakukan dengan 2 cara yaitu pengamatan dan wawancara. Metode perancangan yaitu menggunakan pendekatan Object Oriented Analysis System (OOAD) dengan menggunakan notasi United Modeling Language (UML). Hasil yang dicapai dari penelitian ini adalah menghasilkan sistem informasi yang dapat membantu Perusahaan dalam proses registrasi dan penyimpanan data keanggotaan. Simpulan yang diperoleh dengan adanya sistem informasi registrasi dan keanggotaan ini adalah dapat meningkatkan dan memberikan pelayanan dengan cepat kepada pelanggan dan mengurangi kesalahan yang akan terjadi, dan membantu Perusahaan dalam mengambil keputusan

Synthesis, Physico-Chemical and Antimicrobial Activities Co(II),Ni (II) ,Cu(II), Zn(II),Cd(II) and Hg(II) Mixed- Ligand Complexes of L- Alanine and Trimethoprim Antibiotic

The Co (II), Ni (II) ,Cu(II), Zn(II) ,Cd(II) and Hg(II) complexes of mixed of amino acid (L-Alanine ) and Trimethoprim antibiotic were synthesized. The complexes were characterized using melting point, conductivity measurement and determination the percentage of the metal in the complexes by flame (AAS). Magnetic susceptibility, Spectroscopic Method [FT-IR and UV-Vis]. The general formula have been given for the prepared mixed ligand complexes [M(Ala)2(TMP)(H2O)] where  L- alanine (abbreviated as (Ala ) = (C5H9NO2) deprotonated primary ligand, L- Alanine ion .= (C5H8NO2-) Trimethoprim (abbreviated as  (TMP ) = C10H11N3O3S M(II) = Co (II),Ni(II) ,Cu(II), Zn(II) ,Cd(II) and Hg(II). The results showed that the deprotonated L- Alanine by KOH (Ala- K+) act as uni nagative bi dentate  ligand , was coordinated to the metal ions through the oxygen of the carboxylic group (-COO-), and the nitrogen of the amine group (-NH2) while Trimethoprim antibiotic act as  mono dentate ligand , was coordinated to the metal ions through the nitrogen of the pyrimidine group. Keywords: Trimethoprim antibiotics , L- Alanine) complexes & Antibacterial activit

A Numerical Solution Algorithm for a Heat and Mass Transfer Model of a Desalination System Based on Packed-Bed Humidification and Bubble Column Dehumidification

The humidification-dehumidification (HDH) desalination system can be advantageous in small-scale, off-grid applications. The main drawback of this technology has been its low energy efficiency, which results in high water production costs. Previous studies have approached this issue through thermodynamic balancing of the system; however, most theoretical work on the balancing of HDH has followed a fixed-effectiveness approach that does not explicitly consider transport processes in the components. Fixing the effectiveness of the heat and mass exchangers allows them to be modeled without explicitly sizing the components and gives insight on how the cycle design can be improved. However, linking the findings of fixed-effectiveness models to actual systems can be challenging, as the performance of the components depends mainly on the available surface areas and the flow rates of the air and water streams. In this study, we present a robust numerical solution algorithm for a heat and mass tranfer model of a complete humidification-dehumidification system consisting of a packed-bed humidifier and a multi-tray bubble column dehumidifier. We look at the effect of varying the water-to-air mass flow rate ratio on the energy efficiency of the system, and we compare the results to those reached following a fixed-effectiveness approach. In addition, we study the effect of the top and bottom temperatures on the performance of the system. We recommended the implementation a control system that varies the mass flow rate ratio in order to keep the system balanced in off-design conditions, especially with varying top temperature.Center for Clean Water and Clean Energy at MIT and KFUPM (Project R4-CW-08

An experimental study of the dual-fuel performance of a small compression ignition diesel engine operating with three gaseous fuels

A dual-fuel engine is a compression ignition (CI) engine where the primary gaseous fuel source is premixed with air as it enters the combustion chamber. This homogenous mixture is ignited by a small quantity of diesel, the ‘pilot’, that is injected towards the end of the compression stroke. In the present study, a direct-injection CI engine, was fuelled with three different gaseous fuels: methane, propane, and butane. The engine performance at various gaseous concentrations was recorded at 1500 r/min and quarter, half, and three-quarters relative to full a load of 18.7 kW. In order to investigate the combustion performance, a novel three-zone heat release rate analysis was applied to the data. The resulting heat release rate data are used to aid understanding of the performance characteristics of the engine in dual-fuel mode. Data are presented for the heat release rates, effects of engine load and speed, brake specific energy consumption of the engine, and combustion phasing of the three different primary gaseous fuels. Methane permitted the maximum energy substitution, relative to diesel, and yielded the most significant reductions in CO2. However, propane also had significant reductions in CO2 but had an increased diffusional combustion stage which may lend itself to the modern high-speed direct-injection engine

The effect of queue size on the throughput, in group failure mode, for the loaded transport channel

The external data flow decreases the throughput of the transport connection. The indicator of this external load is the queue size in front of the protocol data. In this article, using a mathematical model in analytical and numerical forms, the relation between the throughput of the channel and the protocol parameters are presented including the queue size parameter. In this work the effect of the queue size on time-out duration has been shown, which is one of the important parameters and it's studied weakly in researches. Also, the relation between round-trip delay, the reliability of the transmission of the information segments with queue size are also shown

Pro-poor intervention strategies in irrigated agriculture in Asia: poverty in irrigated agriculture: issues and options: Bangladesh

Irrigated farming / Poverty / Irrigation management / Water resource management / Policy / Planning / Institutions / Organizations / Local government / Non-governmental organizations / Legislation / Water users / Participatory management / Public sector / Water allocation / Cost recovery / Households / Income / Expenditure / Irrigation canals / Bangladesh

A Concise Introduction to Perturbation Theory in Cosmology

We give a concise, self-contained introduction to perturbation theory in cosmology at linear and second order, striking a balance between mathematical rigour and usability. In particular we discuss gauge issues and the active and passive approach to calculating gauge transformations. We also construct gauge-invariant variables, including the second order tensor perturbation on uniform curvature hypersurfaces.Comment: revtex4, 16 pages, 3 figures; v2: minor changes, typos corrected, reference added, version accepted by CQ

UNDERSTANDING THE EFFECTS OF INTERPERSONAL COMMUNICATION AND TASK DESIGN ON JOB PERFORMANCE AMONG EMPLOYEES IN THE MANUFACTURING COMPANY

on job performance among employees from the manufacturing industry. Methodology: The data is analyzed through a survey (questionnaire) from 152 employees in one of the manufacturing companies in Penang, Malaysia. Hypotheses for all direct effects between the predictors (eg. interpersonal communication and task design) and criterion (job performance) are tested using regression analysis.  Result: Results presented that employees in this company have a high level of job performance (µ = 3.70); interpersonal communication (µ =3.64) and task design (µ =3.66). Also, positive correlations are found between employees’ performance and interpersonal communication (r=.53, p=.00) and task design (r=.54, p=.00). Implications: Thus, this research provided a fruitful knowledge regarding the level of employees’ performance as well as their internal communication and task design; among employees in one of the manufacturing company in Malaysia

Weighing the Milky Way

We describe an experiment to measure the mass of the Milky Way galaxy. The experiment is based on calculated light travel times along orthogonal directions in the Schwarzschild metric of the Galactic center. We show that the difference is proportional to the Galactic mass. We apply the result to light travel times in a 10cm Michelson type interferometer located on Earth. The mass of the Galactic center is shown to contribute 10^-6 to the flat space component of the metric. An experiment is proposed to measure the effect.Comment: 10 pages, 1 figur