Judul: Health, Safety and Environment Evaluation of Factory X
Abstrak: Pabrik X merupakan pabrik yang mengolah kulit hingga menjadi kulit tersamak. Sepanjang proses produksi yang dilakukan, digunakan alat – alat besar serta banyak penggunaan bahan – bahan kimia yang memiliki banyak risiko bagi para pekerja. Evaluasi Kesehatan dan Keselamatan Kerja (K3) dilakukan dengan menggunakan standar AS: NZS 2004 dimana tahapan evaluasi Kesehatan dan Keselamatan Kerja adalah identifikasi risiko, analisis risiko, dan pengendalian risiko. Berdasarkan hasil observasi, risiko yang teridentifikasi adalah bahaya fisik dan kimia yang dihasilkan selama proses produksi. Setelah proses identifikasi dilakukan, analisis risiko dilakukan dengan matriks untuk mengetahui tingkatan bahaya dari setiap proses dengan perhitungan Risk Score = Impact Level x Likelihood dimana hasil dari perhitungan tersebut digunakan untuk pertimbangan pengendalian risiko. Pengendalian risiko yang dilakukan adalah perancangan instruksi kerja pada setiap proses dan penggunaan Alat Pelindung Diri (APD) yang sesuai untuk setiap proses., Factory X is a factory that processes leather to become tanned leather. Throughout the production process, large tools are used, and many chemicals are used, which have a lot of risks for workers. Evaluation of Occupational Health and Safety (K3) is carried out using AS: NZS 2004, where the stages of Occupational Health and Safety evaluation are risk identification, risk analysis, and risk control. Based on the observation results, the identified risks are physical and chemical hazards generated during production. After identification, a risk analysis is carried out with a matrix to determine each method’s hazard level by calculating Risk Score = Impact Level x Likelihood where the calculation results are used to consider risk control. Risk control is carried out by designing work instructions for each process and using appropriate Personal Protective Equipment (PPE) for each method.
Keyword: AS:NZS 2004, Occupational Health and Safety, Work Instruction

Judul: Analisis Keselamatan dan Kesehatan Kerja (K3) Pada Industri Pengolahan Teh (Studi Kasus Pada Bagian Produksi PT. Sinar Inesco, Tasikmalaya)
Abstrak: The problems in Occupational Safety and Health frequently still are ignored. This matter is shown with the number of work accident remain high. Based on data recorded in PT. Jamsostek, there were 83,714 work accident cases in Indonesia within year 2007. This number includes 6,506 handicaps, and 1.883 deaths. Agriculture is one of the most hazardous occupations in worldwide. In several countries the fatal accident rate in agriculture is two times higher than the average for all other industries. PT. Sinar Inesco as one of agro industry has quite intense activity involving labors, appliance, method, expense, and the material and also full time daily work. That condition owns the possibility of the happening of risk or hazard even accident in activity execution. This research was aimed to study potential hazard in working environment, to know the risk level in each hazard, and to identify the factors dealing with Occupational Safety and Health. Risk assessment used qualitative analysis which generally known as 2D model, where risk level was calculated from multiplication of Likelihood with Consequence which was reconciled with matrix table of risk analysis 2D model. Risk level showed by the matrix was then used define control techniques in accordance with literature and condition of location. Identification resulted that hazards at production activity of tea processing were classified into 4 units e.g. pre-withering and withering, hulling and fermentation, drying, sorting and packing. Hazards with low risk levels are slumped, incurred by heat from fan, collided by chair monorail, the noise (at pre withering and withering unit), slipped (at hulling and fermentation unit), clamped in drying door (at drying unit), dust breathed by respiration, noise and collided (at sorting and packing unit). Hazard with medium risk level was included scratches (at pre withering and withering unit), fallen down, electricity shocked, noise (at hulling and fermentation unit), hot exposure and slipped (at drying unit), clamped in enchain, eye incurred by dust and electricity shocked (at sorting and packing unit). The last level is high risk. This kind of risk has to be reduced before continuing work. Hazard with high risk level consist of pulled by propeller, and electricity shocked (at pre withering and withering unit), clamped, cut (at hulling and fermentation unit), fallen down, burned, noise (at drying unit) and pulled by propeller (at sorting and packing unit). Observations indicate that the cause of hazard can be grouped into two, that is, unsafe action done by worker and unsafe condition. Unsafe action done because the workers have less knowledge about Occupational Safety and Health. Unsafe condition commonly caused by destroying equipments such as production machines and the working safety equipments Each hazard has different risk levels; therefore, different control techniques are suggested. Control which can be done in general is to frame Standard Operation Procedure (SOP), to use personal protection, display, as well as to repair damaged equipments and machine. Control can be used by all hazards for low, medium and high risk while the extreme risk has to be eliminated.
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Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
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