scholarly journals Evaluasi Efektivitas Mesin Kiln dengan Penerapan Total Productive Maintenance pada Pabrik II/III PT Semen Padang

2016 ◽  
Vol 13 (1) ◽  
pp. 454
Author(s):  
Andita Rahayu
Keyword(s):  
Engine Performance ◽  
Total Productive Maintenance ◽  
Average Value ◽  
Low Efficiency ◽  
And Performance ◽  
Equipment Utilization ◽  
Quality Of Products ◽  
Performance Rate ◽  
A Company

PT Semen Padang is a company that produces cement and it can not be separated from issues related to the effectiveness of the machinery/ equipment caused by factors such as six big losses. It can be indicated from the frequency of damage caused to machinery/ equipment because of the damage so that production targets are not achieved. Another result of damage caused by machinery/ equipment is the quality of products where the products are not meet the quality standards. Therefore, it is necessary to measure effective and efficient in the maintenance of machinery/equipment int term of solving such problems. TPM is a method which developed in Japan that can be applied to improve the productivity and efficiency of production. The applied method is one of useful methods to mantain machinery/equipment utilization including, losses that called by the six big losses. One goal of TPM is to increase the effectiveness to improve function and performance of machinery/ equipment used and reduce the six big losses contained in the machine/ equipment. Study has been conductedin W1 and W2 Kiln engine on Indarung Factory II / III PT Semen Padang. The first stage is measuring the effectiveness of W1 and W2 Kiln machine using OEE method. Furthermore, we are y measure OEE Six Big Losses and another losses that lead to the low efficiency of the Kiln machine. The data has been collected based on year 2013. Result showed that the value of OEE in W1 kiln ranged from 49% to 96%. While the value of OEE in W2 kiln ranged from 60% to 98% . It is related to the level of availability W1 kiln (average 92%) were also quite low when it is compared to the level of availability W2 kiln (average 94%) due to the length of time the kiln W1 engine damage. Refer to the value of the performance rate W1 and W2 kiln, it can be concluded that the average value of both engine performance rate is almost the same, ranging between 91% and 92%. Analysis of OEE Six Big Lossesshowed that cause of low OEE on kiln machine is breakdown loss. It also affected the reduced speed loss.Keyword : OEE, Six Big Losses, Availability, Performance Rate, Quality RateAbstrakPT Semen Padang merupakan sebuah perusahaan yang memproduksi semen juga tidak terlepas dari masalah yang berkaitan dengan efektivitas mesin/peralatan yang diakibatkan oleh faktor six big losses tersebut. Hal ini dapat terlihat dari frekuensi kerusakan yang terjadi pada mesin/peralatan karena kerusakan tersebut sehingga target produksi tidak tercapai. Akibat lain yang ditimbulkan kerusakan mesin/peralatan yaitu dalam hal kualitas produk yang dihasilkan dimana produk yang tidak sesuai dengan standar kualitas akan dioleh kembali. Oleh karena itu diperlukan langkah-langkah efektif dan efisien dalam pemeliharaan mesin/peralatan untuk dapat menanggulangi dan mencegah masalah tersebut. TPM adalah salah satu metode yang dikembangkan di Jepang yang dapat digunakan untuk meningkatkan produktivitas dan efisiensi produksi perusahaan dengan menggunakan mesin/peralatan secara efektif. Tidak tepatnya penanganan dan pemeliharaan mesin/peralatan tidak hanya menyebabkan masalah kerusakan saja, tetapi juga kerugian lain yang disebut dengan six big losses. Salah satu tujuan TPM adalah untuk meningkatkan efektivitas dengan cara meningktaan fungsi dan kinerja mesin/peralatan yang digunakan dan mengeliminasi six big losses yang terdapat pada mesin/peralatan. Objek yang diteliti pada penelitian ini adalah mesin Kiln W1 dan W2 yang terdapat pada Pabrik Indarung II/III PT Semen Padang. Tahapan pertama dalam usaha peningkatan efisiensi produksi pada perusahaan ini adalah dengan melakukan pengukuran efektivitas mesin Kiln W1 dan W2 dengan menggunakan metode OEE yang kemudian dilanjutkan dengan pengukuran OEE Six Big Losses dan dari faktor six big losses tersebut dicari faktor terbesar yang mengakibatkan rendahnya efisiensi mesin Kiln. Data yang digunakan adalah data satu tahun terakhir yaitu Bulan JanuariDesember 2013. Selama periode tersebut, diperoleh nilai OEE pada kiln W1 berkisar antara 49% hingga 96%. Sedangkan nilai OEE mesin kiln W2 berkisar antara 60% hingga 98%. Hal ini berhubungan dengan tingkat availability mesin kiln W1 (rata-rata 92%) yang juga cukup rendah bila dibandingkan dengan tingkat availability mesin kiln W2 (rata-rata 94%) dikarenakan lamanya waktu kerusakan mesin kiln W1. Bila dilihat dari nilai performance efficiency mesin kiln W1 dan W2, maka dapat disimpulkan bahwa nilai rata-rata performance efficiency kedua mesin ini hampir sama, yaitu berkisar antara 91% dan 92%. Bila dilakukan analisa OEE Six Big Losses, maka yang menjadi penyebab rendahnya OEE pada mesin kiln ini adalah waktu kerusakan mesin yang tergolong dalam frekuensi sering. Hal ini juga berimbas pada penurunan kecepatan kerja mesin kiln.Kata Kunci : OEE, Six Big Loss, Availability, Performance Rate, Quality Rate

Text Analysis of Assembly Work Instructions

2015 ◽  
Author(s):  
Rahul Sharan Renu ◽  
Gregory Mocko
Keyword(s):  
Natural Language Processing ◽  
Natural Language ◽  
Language Processing ◽  
Lead Times ◽  
Parts Of Speech ◽  
Assembly Work ◽  
And Performance ◽  
Quality Of Products ◽  
Speech Tagging

The objective of this research is to investigate the requirements and performance of parts-of-speech tagging of assembly work instructions. Natural Language Processing of assembly work instructions is required to perform data mining with the objective of knowledge reuse. Assembly work instructions are key process engineering elements that allow for predictable assembly quality of products and predictable assembly lead times. Authoring of assembly work instructions is a subjective process. It has been observed that most assembly work instructions are not grammatically complete sentences. It is hypothesized that this can lead to false parts-of-speech tagging (by Natural Language Processing tools). To test this hypothesis, two parts-of-speech taggers are used to tag 500 assembly work instructions (obtained from the automotive industry). The first parts-of-speech tagger is obtained from Natural Language Processing Toolkit (nltk.org) and the second parts-of-speech tagger is obtained from Stanford Natural Language Processing Group (nlp.stanford.edu). For each of these taggers, two experiments are conducted. In the first experiment, the assembly work instructions are input to the each tagger in raw form. In the second experiment, the assembly work instructions are preprocessed to make them grammatically complete, and then input to the tagger. It is found that the Stanford Natural Language Processing tagger with the preprocessed assembly work instructions produced the least number of false parts-of-speech tags.

Interpretive Structural Modeling (ISM) and its application in analyzing factors inhibiting implementation of Total Productive Maintenance (TPM)

2015 ◽  
Vol 32 (3) ◽  
pp. 308-331 ◽  
Author(s):  
Prasanth S. Poduval ◽  
V. R. Pramod ◽  
Jagathy Raj V. P.
Keyword(s):  
Action Plan ◽  
Structural Modeling ◽  
Total Productive Maintenance ◽  
Interpretive Structural Modeling ◽  
Content Type ◽  
Organization Management ◽  
Inhibiting Factors ◽  
Quality Of Products ◽  
The Relationship

Purpose – The purpose of this paper is to highlight the application of Interpretive Structural Modeling (ISM) to analyze the barriers in implementation of Total Productive Maintenance (TPM). TPM is explained in brief with emphasis on maintenance programs to improve quality of products, reliability of processes and reduction in cost. Barriers in implementation of TPM are also discussed. Concept of ISM and steps in developing ISM are described in detail. The authors then illustrate the research methodology which involves applying ISM to analyze barriers in TPM. Design/methodology/approach – The paper starts off by describing the concepts of TPM and ISM. Barriers in implementation of TPM are discussed. It explains ISM as a methodology to understand the underlying interrelationship among the inhibiting factors. The authors draw up an action plan to carry out research on the usage of ISM to study the TPM inhibitors, to develop an integrated model to establish the relationship among the different TPM inhibiting factors and to suggest action plan to mitigate these factors. Findings – Interpretive Structural Modeling (ISM) can be used to analyze the driving and dependence power of the variables inhibiting implementation of TPM. The barriers to implement TPM are described with detailed explanation. The complexity of the problem and the degree of interconnection among the variables can be found out. This will help Managers take action on mitigating the barriers. Practical implications – By analyzing the interrelationships among the barriers and their strengths, management can chalk out the strategy to implement TPM in an organization. Management will become aware of the barriers which have the maximum influence and then can act accordingly to mitigate these barriers. This will help in implementing TPM faster and in an organized manner. Originality/value – Many authors have used ISM to study various issues. A couple of authors have used ISM to determine barriers in implementation of TPM. The authors feel that most of the papers describe ISM in brief making it slightly difficult for readers to understand. This paper aims to explain elaborately step-by-step on how to develop an ISM making it easier for researchers to understand the ISM concept. Even though there are papers on TPM and difficulties in implementation of TPM, this paper explains the barriers in implementing TPM based on the experience of the corresponding author having worked in the refinery industry.

scholarly journals Accounting Policies in the Function of Quality Assessment of Financial Statements

2021 ◽  
Vol 59 (3) ◽  
pp. 357-373
Author(s):  
Jelena Raičević
Keyword(s):  
Quality Assessment ◽  
Financial Statements ◽  
Relevant Information ◽  
Cash Flows ◽  
Business Decisions ◽  
Financial Position ◽  
And Performance ◽  
Complex Relationships ◽  
A Company

Abstract Financial statements represent an instrument by which relevant information about a company is passed on to its users. Based on the information presented in the financial statements, i.e. information on the financial position and performance of the company, and generated cash flows and capital, users make business decisions. Specific accounting policies serve as the basis for the preparation of quality financial statements. Management is responsible for the preparation and presentation of financial statements and selects accounting policies. Although simple, the issue of choosing the accounting policies can be extremely delicate and complex. Besides management, there are other stakeholders who may be affected by this issue. As a consequence, there are complex relationships that affect the choice of accounting policies, and thus the quality of financial statements.

VECTOR MODEL FOR MULTI-CRITERIA SCORING

2020 ◽  
Vol 10 (10) ◽  
pp. 2245-2253
Author(s):  
A.V. Ganicheva ◽  
◽  
A.V. Ganichev ◽  
Keyword(s):  
Optimal Solution ◽  
Educational Process ◽  
Vector Model ◽  
Economic Systems ◽  
Mean Values ◽  
The Face ◽  
Scalar Products ◽  
And Performance ◽  
Quality Of Products

To assess the performance of economic systems, criteria and performance indicators are used that show the degree of achievement of the desired performance result. To characterize complex systems in most real cases, one criterion is not enough. Therefore, several criteria are used to comprehensively characterize the system. The multi-criteria problem raises the problem of matching individual criteria when used together. There are many ways to select alternatives in the face of multiple decision criteria. This article discusses the multi-criteria comparison of objects with Pareto dominance, vector estimates with arbitrary non-negative coordinates of vectors. The advantages of vector estimates in comparison with average estimates are considered. In this work, three important theorems of multi-criteria estimation are proved. The theorems define the conditions for the equivalence of three options for comparing objects by a variety of attributes: 1) arithmetic mean values; 2) the lengths of the corresponding vectors; 3) scalar products of vectors. As the research results, the application of the developed methods for aggregating the quality indicators of the educational process into a single assessment is shown. The following indicators of the educational process were used: coefficient of diligence, coefficient of interest, coefficient of difficulty of mastering the studied material, assessment of academic performance. A four-criteria optimization problem is formulated. It is shown that the objective function reaches its extreme value at the point that is as close as possible to the point of the optimal solution of the formulated problem. The issues of multi-criteria assessment developed in the article can find application in the management of the educational process in the formation of individual trajectories of trainees, in the tasks of working with the personnel of firms and organizations (selection, training, retraining), in assessing the quality of products and in other areas of activity.

scholarly journals TINGKAT KEPUASAAN WISATAWAN MANCANEGARA TERHADAP KUALITAS PELAYANAN REKREASI AIR PT PANDAWA MARINE ADVENTURS DI TANJUNG BENOA

2018 ◽  
pp. 77
Author(s):  
Ida Bagus Udayana Pidada
Keyword(s):  
Customer Satisfaction ◽  
Sampling Method ◽  
Quality Service ◽  
Marine Tourism ◽  
Average Value ◽  
Sport Activities ◽  
Water Sport ◽  
Water Recreation ◽  
A Company

PT Pandawa Marine Adventures is a company that is operated in the sector of marine tourism as a place for water recreation which is very popular among the travellers for playing water sport activities in the area of Tanjung Benoa. This study aims to analyse customer satisfaction related to the service quality of PT Pandawa Marine Adventures. The research used 100 respondents selected as the samples by using accidental sampling method. The collected data were then analyzed by descriptive qualitative method.The result of this study show that the tourists satisfaction related to the quality service of PT Pandawa Marine Adventures were measured into five satisfaction dimensions (tangible, reliability, responsiveness, assurance, empathy) by using 20 variables. The tangible dimension with four variables obtaining average value as amount 4,18 with satisfied category. Reliability with three variables obtaining average value as amount 4,06 with satisfied category. Responsiveness has six variables obtaining average value as amount 4,09 with satisfied category. Assurance has four variables and obtaining average value 4,07 with satisfied category. Empathy has three variables and obtaining average value 4,27 with very satisfied category.

scholarly journals Pengaruh Rasio Campuran Napthalene pada Premium terhadap Efisiensi Bahan Bakar dan Kinerja Mesin Sepeda Motor 4tak

2021 ◽  
Vol 5 (2) ◽  
pp. 114-124
Author(s):  
Fogot Endro Wibowo ◽  
Rahmasari Fauzhia
Keyword(s):  
Engine Performance ◽  
Mixing Ratio ◽  
Test Results ◽  
Vehicle Exhaust ◽  
Octane Rating ◽  
And Performance ◽  
Hydrocarbon Compound ◽  
Consumption Efficiency ◽  
Horse Power

ABSTRAKPemerintah Indonesia berharap kualitas baik dari gas buang kendaraan khususnya sepeda motor, diperlukan bahan bakar kualitas tinggi yaitu bahan bakar dengan nilai oktan tinggi. Napthalene adalah senyawa hidrokarbon dengan rumus kimia C10H16O. Struktur kimia yang mirip bensin, memiliki rantai lebih panjang membuat Napthalene diduga dapat meningkatkan nilai oktan bensin. Tujuan penelitian yaitu menganalisis pengaruh rasio pencampuran Napthalene pada premium terhadap konsumsi bahan bakar (km/l) dan peningkatan kinerja pada mesin sepeda motor bebek jenis manual 110 cc dan 115 cc. Metodenya adalah eksperimen. Parameternya yaitu tingkat efisiensi konsumsi premium (km/l), peningkatan kinerja meliputi torsi dan daya (Horse Power) pada motor jenis tersebut.Rasio perbandingan Napthalene dan premium yaitu 3 gram/l, 6 gram/l dan 9 gram/l. Hasil uji menunjukkan rasio pencampuran Napthalene pada premium sebanyak 9 gram/l merupakan yang paling berpengaruh terhadap tingkat efisiensi konsumsi premium dan kinerja mesin pada kedua jenis motor tersebut. Aplikasi tersebut tentunya akan memperbaiki kualitas gas buang.Kata kunci : efisiensi, premium, naphthalene, nilai oktan ABSTRACTThe Indonesian government hopes that the good quality of vehicle exhaust gases, especially motorcycles, requires high quality fuel, namely fuel with a high octane rating. Napthalene is a hydrocarbon compound with the chemical formula C10H16O. The chemical structure is similar to gasoline, having a longer chain makes Napthalene allegedly able to increase the octane value of gasoline. The purpose of the study was to analyze the effect of the Napthalene mixing ratio at premium on fuel consumption (km/l) and performance improvement on the 110 cc and 115 cc manual motorcycle engines. The method is experimental. The parameters are the level of premium consumption efficiency (km/l), increased performance including torque and power (Horse Power) on this type of motorcycles. The ratio of Napthalene and premium is 3 grams/l, 6 grams/l and 9 grams/l. The test results show that the Napthalene mixing ratio at premium as much as 9 grams/l is the most influential on the level of premium consumption efficiency and engine performance on both types of motorcycles. The application will certainly improve the quality of exhaust gas.Keywords: efficiency, premium, naphthalene, octane rating

scholarly journals IbM bagi Wirausaha Muda

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Endang Dwi Wahyuni
Keyword(s):  
Product Design ◽  
Production Cost ◽  
Production Equipment ◽  
Digital Printing ◽  
The Public ◽  
On Line ◽  
Quality Of Products ◽  
A Company ◽  
Process Product

IbM to be performed aims to help partners in theproduction and marketing of business partners.Another goal is to help partners to improvecompetitiveness, so that the company'scompetitiveness can be improved, it needs someimprovement and development to be done bypartners, such as fixing the production process,product design and the addition of media onlinemarketing with others and collaborate with otherparties. This is because the company'scompetitors are already using more advancedtechnology, while the partners are still usingsimple technology (manual). so the quality of theproduct is less good and less attractive. In orderto increase competitiveness and sales, thecompany needs to improve its product design andthe use of digital printing in the screen printingproducts (T-shirts). RGB Merch partnercompany that is a company that produces a kindshirt distro, where a machine or equipment usedis still simple. While com-petitors are alreadyusing advanced techno-logies.For businessdevelopment and to en-hance competitiveness,the company partners should immediately use amore sophisticated production equipment so thatproduct quality could be better. In addition theuse of sophis-ticated equipment can producemore output so that the production cost can bereduced. On-line shop to expand the networkusing a variety of existing social networking,such as face-book, nice shops, and others. It isalso Eny Suprapti Fakultas Ekonomi Dan Bisnis UMMnecessary to make cooperation with varioussuppliers of goods, so as to increase thecompleteness of goods sold. After the serviceteam provides assistance and businessconsulting. Companies partner to makeimprovements, both in the production andmarketing process, so that partner companiescan increase the number and quality of products,and the production cost can be reduced. Inaddition, partner com-+panies can expandmarketing network, and collaborating withsuppliers, so that products sold more varied andcan be more known to the public, increasingsales and profits also increased.

scholarly journals The development of the method for assessing the distribution of components in food

2018 ◽  
Vol 80 (3) ◽  
pp. 82-85
Author(s):  
E. S. Akatov ◽  
O. A. Orlovtseva ◽  
E. A. Postovaya
Keyword(s):  
Sodium Chloride ◽  
Mass Fraction ◽  
Food Product ◽  
Average Value ◽  
Component Content ◽  
Quality Of Products ◽  
Distribution Of Components ◽  
High Level ◽  
Mathematical Justification

The article considers the problem of assessing the quality of food products and the process of their production using the example of determining the mass fraction of sodium chloride in baked pork. Salt is an important component, the content of which is regulated by standards and technical regulations and affects all types of indicators: organoleptic, quality and safety. Standard methods of sampling and determining the mass fraction of sodium chloride - the methods of Mora and Folgrade, which establish the average value of the measured index are analyzed. As a result of the conducted studies, a method for estimating the distribution of components in a food product based on the second Fick law, which takes into account the nonstationary nature of the flow and provides for the possibility of changing the flow of atoms in the diffusion process, is proposed. The article provides a mathematical justification for the proposed methodology. Based on the methods, regulated by standards, the method allows to demonstrate clearly the values of the component content in the product mass.The developed method gives a more complete picture of the quality of products, allows us to draw conclusions about the quality of the process and the causes that affect it.This information will allow to develop a set of measures to ensure a high level of competitiveness of the food product.

scholarly journals Risk Factors and Potential Solutions for the Construction Industry in China

2020 ◽  
Vol 10 (2) ◽  
pp. 34-47
Author(s):  
Yutian Chen ◽  
Oswald Chong
Keyword(s):  
Developing Countries ◽  
Construction Industry ◽  
Poor Quality ◽  
Kingdom Of Saudi Arabia ◽  
Best Value ◽  
Low Efficiency ◽  
And Performance ◽  
Scheduled Time ◽  
Developed Nations

The Chinese construction industry (CCI) has grown to be one of the largest in the world within the last 10 years. The size of the CCI is on par with many developed nations, despite it being a developing country. Despite its rapid growth, the productivity and profitability of the CCI is low compared to similar sized construction industries. In addition to the low efficiency of the CCI, the minimal documented performance information collected, shows projects being completed over budget, over the scheduled time, with poor quality of work. A literature research was performed on other developing countries similar to the CCI, to identify if there were any solutions that had been proven to improve the productivity and performance of a construction industry. It was found that Vietnam, The Kingdom of Saudi Arabia and India were the closest to China with enough documentation on their construction industry. Both countries identified the Best value Approach (BVA) as the only solution with documented performance showing it could solve the issues developing countries face with their construction industry. This paper proposes that more research should be performed looking into the ability of the CCI to implement the BVA.

MONITORING INFORMATION ABOUT AGRICULTURAL LAND USING UAVS

2020 ◽  
Author(s):  
S. A. Mishin ◽  
◽  
S. A. Vasiliev
Keyword(s):  
Computer Vision ◽  
Quality Control ◽  
Agricultural Land ◽  
Agricultural Products ◽  
Agricultural System ◽  
Computer Vision Systems ◽  
Low Efficiency ◽  
Quality Of Products ◽  
Monitoring Information

As the population increases, urbanization will gradually reduce the area of cultivated land, and the pressure on the agricultural system will continue to increase. In traditional agriculture, there is a reliance on mechanical operations, with manual harvesting as the basis, resulting in high costs and low efficiency. Quality control of agricultural products helps to judge and determine the quality of products and promotes their commercialization. With the development of computer vision technologies, automatic sorting and quality control of agricultural products has been achieved, and computer vision systems have been widely used in various areas of agricultural and food production market segments, avoiding the high cost and low efficiency of traditional operations.

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