PT Abaisiat Raya is one of the manufacturers of rubber crumb (crumb rubber) in the city of Padang. Latex inventory management system at PT Abaisiat Kingdom basically signinfikan still need improvement. It is based on the planning activities in the warehouse inventory of raw materials firms irregular, thus causing excess stock (over stock) at a time and shortage of stock (stock out) at other times. Process optimization is done with latex inventory system involving factors such as demand forecasting production planning or latex needs during the period of next 12 (in 2012), the costs involved, the waiting time (lead time), the implementation of forecasting methods, determination of size lots (lot sizing), the determination of safety stock (safety stock), and re-ordering time (reorder point), so the output will get a number of requests are for 12 periods ahead, the size of each reservation period, the total cost is required, when re-ordering will be done , as well as how much inventory to latex in the warehouse. Based on these results, it was found that the optimal size of the book is the same as the demand for each period (reservation is made each period) due to a cyclical pattern of demand and decreases throughout the planning period. Value of the stock or safety stock is located in Kg 114,282.20, and re-ordering time (reorder point) to cope with fluctuations do when the stock has reached a level of 333,130.95 kg.Keywords: Forecasting, Time Wait, Lot Size, Safety Supplies, Reorder
Patchouli oil is a type of oil obtained from the extraction of patchouli leaves and dried stems. In this study, the extraction process, also known as distillation, is conducted by Small and Medium Enterprises (SMEs) in West Pasaman, Indonesia. Patchouli oil must go through several steps before being by manufacturers, such as farmers, intermediaries, collectors. The interview and survey conducted show that SMEs are currently declining in West Pasaman due to the low selling price of patchouli oil while the production cost is high that declined farmers. Most traders do not add value to the product as they only collect patchouli oil and pass it on to next stages. This study aims to determine the production cost and profit margin of each stage in the supply chain of patchouli oil. Data were collected by interviewing the stakeholders, i.e., patchouli farmers, SMEs refining patchouli oil, collectors, and exporters. The production cost determined using traditional costing method. The results indicate that farmers obtain IDR 1.236 per day, while traders and collectors obtain respectively IDR 10.000 and IDR 3.833 a day. Surprisingly, the intermediary traders obtain the highest profit margin although they do not contribute to the added value of the product.
The eyes are part of the body that must be protected workers safety and health. Sufficient light is one of the most important aspects that determine the health of the eye, excellent lighting intensity affect the eyes. This study was performed at PT Pertamina RU VI Balongan, based on observation in the work area, it is necessary to evaluate the intensity of light and eyestrain workers in a unit of PT. Pertamina Refinery Unit VI Balongan.Be collected on primary and secondary data and processing in the form of statistical testing using Microsoft Excel and SPSS Software 2.0. Tests conducted on four types of questionnaires and data variables intensity lighting in the office area of HSE unit RU VI Balongan.There are 12 rooms which have the following illumination standard (under 300 lux). Based on a statistical test between the variable quality of the lighting of the eye complaints get results there are two variables that have a relationship. In addition, all respondents had complaints of eye fatigue that varies with the highest percentage of 80% with complaints of eye feels sleepy and 63% of workers feel pain in the neck or shoulder.Keywords: lighting intensity, eye complaints, work practice.AbstrakMata merupakan bagian tubuh pekerja yang harus dilindungi keselamatan dan kesehatannya. Cahaya yang cukup merupakan salah satu aspek terpenting yang menentukan kesehatan mata, Intensitas cahaya yang baik sangat mempengaruhi mata. Penelitian ini dilakukan pad PT Pertamina RU VI Balongan mengenai pengevaluasian terhadap intensitas cahaya dan efeknya terhadap kelelahan mata pekerja di salah satu unit perusahaan tersebut. Dilakukan pengumpulan terhadap data primer dan sekunder serta pengolahan dalam bentuk pengujian statistika menggunakan Microsoft Excel dan Software SPSS 2.0. Pengujian dilakukan terhadap empat jenis variabel kuesioner dan data intensitas pencahayaan di area perkantoran unit HSE RU VI Balongan.Terdapat 12 ruangan yang memiliki NAB dibawah standar (dibawah 300 lux). Berdasarkan uji statistika antara variabel kualitas pencahayaan terhadap keluhan mata mendapatkan hasil terdapat dua variabel yang memiliki hubungan. Selain itu seluruh responden memiliki keluhan kelelahan mata yang bervariasi dengan persentase paling tinggi sebesar 80% dengan keluhan berupa mata terasa mengantuk dan 63% pekerja merasa nyeri dibagian leher atau bahu.Kata kunci : intensitas pencahayaan, keluhan mata, kerja praktek.
Leadership, motivation, work environment, and discipline is some of important factors where its influence in employees performance need to be studied, in order to improve better performance or provide positive influence on the performance itself. Employees performance in the welding section 1 A, has significant effect in the production process at PT. XYZ Motor, which manufactures parts of the body frame, in order to complete the daily production target, the influence of these factors on the employees performance needs to be determined. This study uses a questionnaire for collecting data from samples of 80 respondents taken from 158 employees in the welding 1 A. Multiple linear regression is used to test hypotheses for each variable. Result showed that the discipline variables has positive influence on employee performance with significance value of 0,04, where the value is less than 0,05. Other factors has value greater than 0,05.Keyword: Leadership, motivation, work environment, discipline, performance AbstrakFaktor kepemimpinan, motivasi, lingkungan kerja, dan kedisiplinan menjadi beberapa faktor yang perlu dan penting untuk di ketahui pengaruhnya terhadap kinerja karyawan, guna peningkatan kinerja yang lebih baik atau memberikan pengaruh positif terhadap kinerja itu sendiri. Kinerja karyawan di bagian welding 1 A, memiliki andil cukup besar dalam proses produksi di PT. XYZ Motor, bagian yang memproduksi frame body tersebut harus mampu menyelesaikan target produksi dalam setiap harinya, untuk menentukan pengaruh faktorfaktor tersebut terhadap kinerja karyawan. penelitian ini menggunakan kuisioner untuk melakukan pengumpulan data dari sampel yang diambil sebanyak 80 responden dari 158 karyawan di bagian welding 1 A. Pengolahan dari data yang terkumpul menggunakan regresi linier berganda dengan melakukan pengujian hipotesis terhadap per masing-masing variabel. Berdasarkan pengolahan, didapatkan hasil bahwasannya yang memberikan pengaruh positif terhadap kinerja karyawan yaitu pada variabel kedisiplinan dengan nilai signifikansinya 0,04, dimana nilai tersebut lebih kecil dari nilai 0,05. Sedangkan faktor lain yang menjadi variabel bernilai lebih besar dari 0,05.Kata Kunci: Kepemimpinan, Motivasi, Lingkungan kerja, Kedisiplinan, Kinerja
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