Metris: Jurnal Sains dan Teknologi
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Usulan Perbaikan Tata Letak dengan Menggunakan Metode Fraktal (Studi Kasus di Perusahaan Mebel X)
Get PDFProduction is the main thing in a manufacturing industry. Production activity would work well if the flow pattern of the material in the production floor smoothly. Better transfer of material will speed up the completion of a product. Intense competition in the manufacturing industry forced the industry to make the material flow to be short. This can be done by resetting the engine layout in such a way. Industry Furniture X as one of the furniture industry in the city of Palembang that manufacture products based on the make to order. The product has so many variations of high material flow and higher material handling costs. The distance between the machines far enough too play a role in the cost of material handling.The layout of the fractal method can produce a short distance between the machine and more flexible to address the varying conditions of the product. This method will form fractals that have the same ability to make the production process, in which fractal is formed of two pieces, each of which consists of 9 pieces of machinery . In the proposed layout is formed , the machines were experiencing engine displacement is 1A , 1B , 1C , 2B , 3B , 4 , 5 , 6A , 6B , 7 ,8A, 8B, 10A, and 10B. This method was successful in reducing the material displacement distance during research periode of 58,125 meter or 6.251% and the cost of material movement during research periode Rp 27.971,9375 and during one year Rp 559.438,75 or 3,066 %
Kajian pendahuluan penentuan tingkat utilitas pekerja proses filling stasiun kerja cup filling di perusahaan air minum dalam kemasan
Get PDFThis study aims to determine the utilization of the worker’s time in the filling process, packaging department, a cup and bottled water company. Considering the aim of the study and the task characteristics, work sampling technique was used. Two production lines and two work stations were selected for time studyanalysis. In each work station, two workers with different tasks were involved for the time analysis. A number 586 and 1710 observations from Worker 1 in Line 1 and Line 2, and 586 and 1440 observations from Worker 2 in Line 1 and Line 2 were taken and observed. Results showed that the utilization of worker’s time are 31.7% and 33.6 % of Worker 1 in Line 1 and Line 2, and 25.6% and 21.0% of Worker 2 in Line 1 and Line 2. Results of significant testing showed that no significant differences were found for workers’ time utilization between Worker 1 in Line 1 and Worker 1 in Line 2 (Z=-0.82, p=0.41) and between Worker 2 in Line 1 and Worker 2 in Line 2 (Z=2.17, p=0.03) for α=0.01. Regarding findings in this study, it is reasonable for the management to consider work station which one worker per machine instead of two workers per one machine
Analisis Postur Kerja Operator Mesin Bubut di PT. X
Get PDFPT. X is one of the aerospace companies in Asia that has core competencies in the design and development of airplanes. The manufacture of aircraft certainly requires aircraft aids made by Machining tools. In this section there are many machine operators, of course, require interaction between humans and machines. However, there are some operators that still use conventional lathes. The research is analyzing the work posture of conventional lathe operators using the RULA (Rapid Upper Limb Assessment) method. The initial observation was to disseminate the Nordic Body Map questionnaire to 2 lathe operators with the same task, to find out complaints that occurred during or finished working. The results of calculations using the Ergo Fellow software and manual calculations produce the same score. Assessment of work posture on the lathe operator PT. Indonesian Aerospace obtained a RULA score of 6, Action Level 3, indicating that it has a moderate level of risk and action is needed in the near future
Estimating Spillover Effect and Leverage Effect Using EGARCH-ARMA Approach in Mongolian Stock Exchange
Get PDFThis study checked the spillover effect and leverage effect from 2 January 2012 to 27 December 2017 in the Mongolian Stock Index MSE20 time frame. We found spillover effect on individual stock prices from the market index, but our analysis did not support individual stock has a spillover effect on stock index. In terms of volatility, only market and stock volatility have a bilateral spillover effect. Stock index in particular has a much stronger influence on stock price. Our research did not support previous studies for the leverage effect of the EGARCH-ARMA method, suggesting negative asymmetric influence of volatility such that two financial instruments overlap in their value
Analisis Pengendalian Kualitas Pelapisan Baja Material Siku SS540 di PT. X dengan Menggunakan Metode SPC
Get PDFQuality is an important factor for people in selecting and enjoying a product or service in addition to competitive prices. Therefore, for companies to survive and maintain its existence, it is required to remain continuously maintain and improve the quality of the products or services they offer. PT. X is a company engaged in the steel plating with Hot Dip Galvanize method. In the implementation of quality control in PT. X, after analysis on coating processes steel material elbow 50 x 50 x 5 (mm) in length 2000 mm Type SS540 processed vertically in the period January - December 2014. By using SPC method, that is especially by calculation using the map control x̅, R and S is still a point of being out of control that indicates the thickness of the coating out of provisions. However, the number of points out of the control limits is still relatively small. However, PT. X must remain continuously maintain and improve the quality of their products and services by taking into account four factors that influence the final armor plating that is the human factor, the factor labor process, machine factors and material factor
The Effect of Knowledge Sharing on the Service Innovation Performance:An Empirical Study on Restaurant in North Kalimantan, Indonesia
Get PDFThis research was conducted on restaurant business in North Kalimantan Province, Indonesia. To improve the performance of service innovation, companies need knowledge gained from knowledge sharing activities. A number of 150 employees working in the restaurant businesses in North Kalimantan participated in this study. The data were collected using survey method with questionnaire. The survey responses submitted by respondents in this study indicated that the influence of knowledge sharing on the performance of service innovation showed significant results. Knowledge sharing activities in this study have a positive effect on innovation performance of restaurant business services in North Kalimantan
Cryptic Currencies: Bitcoin at its Peak
Get PDFThe cryptocurrencies are digital currencies that were initially designated to replace the old ones. However, they act as investment assets and many treat them like stocks. The market for cryptocurrencies counts more than 1600 types and the Bitcoin is the first and foremost of all of them. In one year the price of Bitcoin grew staggering 2000 percent. Other currencies have not seen this type of rising. This study investigates the period of over 4 years of data for 5 cryptocurrencies, the three years before and the last year of hyper-growth of the Bitcoin. We used GARCH model to see if two periods of data may offer some incites for patterns. The findings of this paper show that the Bitcoin in the period of high volatility is more diverged from its counterparts. According to results in the period of high volatility, the factors that influence the price formation of cryptocurrencies may not be the same for all of them. Using the price of the Bitcoin of one day earlier and the price of altcoins today we find spillover effect. Spillover effect is less prominent in the second period of high volatility. It may indicate of relatively independent nature of altcoins during the periods of high volatility
Pratinjau Ukuran Meja dan Kursi Anak Sekolah Menurut Acuan SNI Berdasarkan Dimensi Tubuh Siswa Kelas Satu Sekolah Dasar di DKI Jakarta
Get PDFThis paper presents a preliminary review of dimensions school furniture which was issued by National Standardization Agency of Indonesia (NSAI) through SNI 7555.4.2009 and SNI 7555.19.2011. The dimensions of seat height of chair and desk height of desk were assessed by using students’ anthropometry i.e. popliteal height and elbow rest height. Anthropometric data of 64 elementary school students of grade 1 were taken. Results showed that 97.1% boys and 96.7% girls did not match with lower level of seat height. Meanwhile, none of students in Grade 1 matched with the higher level of seat height. Similarly, 100% mismatch was found for desk height either for lower or upper level. This findings could lead to a broader study involving more samples, age group and geographical areas
Perbandingan Analisis Keputusan dalam Penentuan Lokasi Gudang Angkatan Laut Wilayah Barat
Get PDFThe development of a company is always related to its supporting facilities’ location, for instance, warehouse location. Usually, company choose the most strategic one to minimize its transportation cost, distribution route and time. As the result, it is clear that warehouse location determination is the key to company’s success in delivering consumer needs. Location determination is not only used in manufacturing problem, but it is also can be used in national defense problem, which is the case study of this research: Western Sea Sector Indonesian Navy. In national defense, national and regional development are important factors for maximizing Indonesian Navy’s strength. As an example, logistics capability improvement. Logistics is one of the most important parts to support warships in doing their maritime operations. So, strategy of determinating the best warehouse location is very crucial to make sure the distribution of goods went smoothly. This research uses Multi Criteria Decision Making (MCDM) as a method to solve location determination problem. Using a study case from main literature by Gunawan et al (2018), this research does another two methods for problem solving, they are Fuzzy Simple Additive Weighting (F-SAW) and Fuzzy Analytical Hierarchy Process (F-AHP). The main purpose of this research is to compare Fuzzy MCDM method, which is used by Gunawan et al (2018), with F-SAW and F-AHP which is calculated in this research. Result shows that Naval Base III is the best location from Fuzzy MCDM and F-AHP, but the best location from F-SAW method is Naval Base I
Analisis Pengaruh Format Penulisan Laporan terhadap Kecepatan Membaca Dosen di Universitas Ma Chung pada Media Kertas
Get PDFThe issue of the environment has been a worldwide concerns. As an effort to solve this problem, then the development began to direct to sustainable development. In the education sector, these efforts have been implemented with the eco campus program. Therefore, experiment to engineer the new report writing format that can minimize paper usage is necessary. This experiment was conducted to determine the effect of factors of font size, leading, line length, and interaction between factors. In addition, it is performed to determine which treatment can produce the fastest reading speed response, but with the most efficient use of paper. In this experiment, the respondents were randomly assigned to one of the eight different combination of the level and factor with 12 pt or 10 pt (font size), 1 or 1.5 (leading), and A4 or A5 (line length).Then do the analysis of variance by using randomized block design to know the effect of the factors. Factors that significantly affect reading speed are the factor of font size as well as the interaction between the leading factor and the line length factor. This conclusion is reliable because the value of coefficient varience in this experiments is 18.22%