Usulan Perbaikan Fasilitas Kerja Yang Ergonomis Pada Stasiun Perakitan Cover Assy 24dc (Studi Kasus PT. Sanwa Engineering Batam)

PT. Sanwa Enginering Batam merupakan Perusahaan yang bergerak dalam bidang Molding dan Perakitan . Perusahan ini berlokasi dikawasan industry Batamindo. Berdasarkan hasil penelitian yang dilakukan distasiun perakitan cover assy 24DC, terdapat keluhan yang sering dialami operator, yaitu rasa sakit dan nyeri pada punggung dan kaki. Hal ini dikarenakan adanya fasilitas kerja yang tidak ergonomis distasiun tersebut, sehingga menimbulkan rasa sakit dan nyeri dibeberapa anggota tubuh.Penelitian bertujuan untuk melakukan perbaikan fasilitas kerja yang ergonomis berdasarkan prinsip –prinsip antropometri, sehingga dapat memberikan kepuasan kepada Perusahaan, karena dalam penelitian ini Perusahaan dapat mengetahui fasilitas kerja yang seharusnya dipakai, sehingga dapat mengurangi keluhan rasa sakit angdi alami operator.Penelitian dilakukan pada stasiun cover assy 24DC sebagai pembatasan masalah dari penelitian. Model penelitian yang digunakan adalah penelitian kuantitatif yang mana dituntut untuk menggunakan angka mulai dari pengumpulan dan pengolahan data sampai pada pembahasan. Data yang digunakan untuk usulan fasilitas berdasarkan hasil pengukuran lansung, dan data yang diambil hanya lah data yang diperlukan dalam melakukan perbaikan fasilitas. Kmemudian data yang telah didapatkan akan diolah dengan mencari nilai rata - rata, standar deviasi, selanjutnya data tersebut akan diuji keseragaman dan kecukupanya dan mencari nilai persentilnya.Hasil akhir yang didapat pada penelitian ini adalah usulan perbaikan fasilitas kerja yang dapat mengurangi keluhan rasa sakit operator distasiun perakitan cover assy 24DC

Internet Privacy

The benefits of the Internet have come at some cost, one of which is a loss of privacy, which is often regarded as a moral right or a legal right. Internet privacy is primarily concerned with protecting user information. It is widely acknowledged as the top consideration in any online interaction. New threats to privacy and civil liberties are emerging daily and privacy practices are not one size fits all. This paper provides a brief introduction to online privacy

Prediction of Natural Gas Compressibility Factor in a Single-Phase Gas Reservoir: A Comparative Study

Natural gas compressibility factor plays important roles in pipeline design, reserve estimation and gas metering. The aim of this study is to presents the most accurate and reliable method of computing gas compressibility factor in a single-phase gas reservoir at various reservoir pressures. In this study, the gas compositions and the specific gravity of the respective gas compounds were retrieved from literatures. This specific gravity determine the pseudo critical and the pseudo reduced properties (temperature and pressure) of the respective gas compounds being studied. The predicted methods studied are Papay correlation, Hall-Yarborough equation of state (EOS), viral EOS, Beggs and Brill and Dranchuk-Abu-Kassem correlation. The methods are expressed as functions of the pseudo-reduced temperature and pressure, thereby predicting the compressibility factor of the predicted methods. The accuracy and the performance of the methods were tested by comparing the results obtained from the methods studied with experimental z-factor values obtained from the literatures. The experimental z-factor values were set as standard for the predicted methods studied. Six (6) statistical parameters and various charts (line and column charts) were used to attest the effectiveness and the precision of the methods. The statistical tools are average absolute error (AAE), average absolute relative error (AARE), root mean square error (RMSE), residual sum of square (RSS), mean square error (MSE) and coefficient of determination (R2). The results of the study shows that, the Papay correlation has the highest coefficient of regression, R2= 92%, rated as the most accurate, reliable and best method. The Hall-Yarborough equation of state has R2 of 86%. The Viral equation of state has R2 of 83%. The Beggs and Brill correlation has R2 of 42%. The Dranchuk-Abu-Kassem correlation has R2 of 10.5%. The Beggs and Brills correlation method is not suitable for application, if the pseudo-reduced pressure is less than 0.92. The Dranchuk-Abu-Kassem correlation is only applicable, if the pseudo-reduced properties are within the range of 0.2<Ppr<15, 1.0<Tpr<3.0. The Hall-Yarborough equation of state cannot be used if the pseudo-reduced temperature is less than one

Urban growth assessment and its impact on deforestation in Bauchi metropolis, Nigeria using remote sensing and GIS techniques

Urban areas are rapidly expanding due to population growth and development, leading to deforestation and land degradation. This study employed remote sensing and GIS techniques to assess urban growth and its impact on deforestation in Bauchi metropolis, Nigeria within the last three decades (1986-2016). The study made use of Land sat images of four epochs; Thematic Mapper (TM) of 1986 and 1996, Enhanced Thematic Mapper of 2006, and Operational Land Imager (OLI) of 2016. Color compositions were made after which the images were geometrically and radio metrically restituted. The images were classified using maximum likelihood algorithm and the accuracy of the classification was assessed by cross-validation using confusion matrices and ground truthing by the use of a hand-held Global Positioning System (GPS). The classified images with their kappa indexes were TM of 1986 (0.83%) and 1996 (0.87%), ETM+ of 2006 (0.90%) and OLI of 2016 (0.92%), respectively. Post-classification comparisons and analyses were performed and the results revealed that changes have taken place in bare surface (+32.43%), built-up area (+565.24%), farm land (+66.42%), forest (-91.80%) and rock outcrop (-49.21%) in the metropolis between 1986 and 2016. The land cover features of the metropolis were reclassified into forest and non-forest for cross-tabulation analysis and the result of the analysis indicates a change-over of 14965.97Ha (39.68%) form forest to non-forest (deforestation) and that of 467.69Ha (1.24%) form non-forest to forest (afforestation) between 1986 and 2016. This shows a rapid increase in built-up area (urban growth) and rapid decrease in forest (deforestation), which may be attributed to lack of improper environmental protection strategy in place in the metropolis. The study demonstrates the potentialities of remote sensing and GIS in assessing urban growth and its impacts on deforestation. The outcome of the study can serve as input into a relationship model for predicting the impact of urban growth on deforestation

Finite Element Approach of Shielded, Suspended and Inverted Microstrip Lines

In this paper, we present finite element method (FEM) to investigate the electromagnetic analysis of two-dimensional (2D) shielded, suspended and inverted microstrip lines for microwave applications. In the proposed method, we specifically determine the values of capacitance per unit length, inductance per unit length, and characteristic impedance of the microstrip lines. Extensive simulation results are presented and some comparative results are given with other methods and found them to be in excellent agreement. We extend the analysis by designing our new model of shielded, inverted microstrip lines and compared it with shielded, suspended microstrip lines; we found them to be very close. Also, we determine the quasi-TEM spectral for the potential distribution of these microstrip lines

Globalization and English Teaching in Jordan

This study discusses globalization and its effect on both education and culture. English as a global language is discussed and how attitudes of people in Jordan have changed according to this fact. Many people in Jordan are keen on learning and even using English in different aspects of life. The positive and negative sides of globalization are elevated and the importance of not letting the negative effect of globalization erase our identity was a point that this study raised. The study concludes by emphasizing the role of teachers in enlightening their students and making them aware of how to proceed into their future as envoys of their own culture to the rest of the world. Key words: globalization, education, culture, English teachin

Chitosan/silica composite membrane: adsorption of lead(II) Ion from aqueous solution

Chitosan membrane has the potential to separate lead(II) ions from aqueous solution. However, the kind of membrane has a drawback due to the low structural properties. Thus, this study investigates the role of silica in improving chitosan-based flat sheet membrane for removal of lead(II) ions from aqueous solution. The functional groups and structural morphologies were characterized using Fourier Transform Infrared-Attenuated Total Reflectance (FTIR-ATR) spectrometer and Scanning Electron Microscope (SEM), respectively. The membrane performance in terms of adsorption study was conducted at different pHs and initial concentration of lead(II) solution. The FTIR-ATR spectrum showed the existence of new absorption peak of chitosan/silica membrane. SEM images revealted the presence of microvoids on the cross-section of the chitosan/silica membrane whereas pure chitosan membrane possessed dense structure. The adsorption study showed that the composite membrane exhibited higher efficiency of lead(II) removal at optimum pH of 7.0 which was 89.27% as compared to 11.50% of pure chitosan membrane. The amount of lead(II) adsorbed onto the membrane was 57.60 mg/g. Therefore, it indicates the potential use of silica to improve the properties of chitosan membrane for removal of heavy metal from water solution

Mobile Edge Computing

Mobile applications are becoming increasingly computational-intensive while many mobile devices still have limited battery power and cannot support computational intensive tasks Mobile edge computing MEC computing is an extension of edge computing and it refers to computing at the edge of a network In mobile edge computing computing and storage nodes are placed at the Internet s edge near mobile devices It places the edge clouds at the candidate locations This paper presents a brief introduction to ME