Judul: Development of layout design feasibility of ginger production in small scale industry in Bogor (CV. Hijau Daun Group, Sentul Bogor Regency, West Java)
Abstrak: CV Green Leaf Group currently serves companies and individuals in areas of Jakarta, Bogor, Depok, Tangerang and Bekasi, even has regular customers in Bandung, West Java and town of Malang in East Java. The increasing demand, these companies have to increase their production capacity. In addition, quality assurance demands of food is also a particular concern for this company. One effort to meet the standards established it is necessary to redesign the layout and facilities. This is because the actual condition of the layout and facilities assessed to be less efficient due to the layout of the building layout is still preexisting General purpose of this study was to analyze the layout design ginger production to optimize the production processes at the new production site CV Green Leaf Group. In particular, this study aims to (1) identify the characteristics of the consumer purchase decision-making of ginger blended in CV Green Leaf Group, (2) analyze the layout based on the actual conditions of the CV Green Leaf Group, and (3) determine the technical feasibility and technological processing industry Ginger based on the results of the study. The method used in a case study with descriptive and quantitative analysis. The primary data obtained from direct interviews and observations (owner and employees) as well as consumers ginger blended 50 respondents. The secondary data were obtained from the literature and a study related documents. From the results of the study can be explained that the consumer's internal factors include: (a) drinking ginger blended by consumers has become a culture of family members, frequency of drinking ginger blended one to two times the equivalent of two to three glasses a day. Low consumption of ginger blended, resulting in an accurate yet respondents relative amount and accuracy of the process in preparing and drinking ginger blended relatively not regular; (b) encouragement of psychological factors give consumers confidence that drinking ginger blended to provide health benefits, practical. Although knowledge about the health benefits derived from a family habit. Based on the technical aspects of the acquired technology that blended ginger processing industry for raw materials are still available due to the availability of raw materials. Blended ginger production activities follow the pattern of the flow of materials in the production room shaped "L". The facilities owned by CV Green Leaf Group complete enough to produce a blended ginger and financial feasibility analysis, capital investment needed is Rp. 350.000.000, -. Based on financial eligibility criteria are eligible to be developed, demonstrated the value of PBP (2.44 years), BEP (14,000 boxes), NPV generated by the business during the four-year old is Rp. 102.667.209, B / C ratio (1.05) and IRR (26.74%). Decrease in selling price and production cost increases of 10%, blended ginger products processing business is not worth to be developed. While the increase in selling prices and selling prices together with rising production costs 10% of the business is still considered feasible. Therefore, the company expectation is to maintaining or improving the quality of products that have been done such as packaging, companies also should pay attention for the
Keyword: Ginger preparations, layout design, feasibility studies

Judul: Layout Design for Ginger Leather Candy Production Facilities at CV Sari Sehat
Abstrak: CV Sari Sehat is an MSME that produces various kinds of processed herbal products such as decoction, instant drink powder, rosella syrup and tea powder. The increasing demand for ginger has made CV Sari Sehat want to continue to develop processed ginger products. CV Sari Sehat intends to diversify its products, namely ginger leather candy. To be able to carry out the ginger leather candy production process, the industry must have production facilities and have a production permit. Product production permits are issued by BPOM in the form of certificates for good food production practices (CPPB) which include aspects of buildings and facilities. The layout design is carried out using the SLP (Systematic Layout Planning) method and the CORELAP (Computerized Layout Planning) algorithm which is a constructive algorithm. The layout design is carried out by taking into account the aspects required in the CPPB-IRT. The results of the production area layout design show that there are eight rooms with the required dimensions of 16,09 m2. The simulation results using the Flexsim software show that the total material displacement distance in the layout design is 41,46 meters., CV Sari Sehat merupakan Usaha Mikro, Kecil, dan Menengah (UMKM) yang memproduksi berbagai jenis produk herbal olahan seperti jamu, bubuk minuman instan, sirup rosella, dan teh. Permintaan yang semakin meningkat terhadap jahe membuat CV Sari Sehat ingin terus mengembangkan produk olahan jahe. CV Sari Sehat berupaya melakukan diversifikasi produk dengan membuat ginger leather candy. Untuk dapat menjalankan proses produksi permen kulit jahe, industri harus memiliki fasilitas produksi dan izin produksi. Izin produksi produk dikeluarkan oleh BPOM dalam bentuk sertifikat praktik produksi pangan yang baik (CPPB) yang meliputi aspek bangunan dan fasilitas. Desain tata letak dilakukan menggunakan metode SLP (Systematic Layout Planning) dan algoritma CORELAP (Computerized Layout Planning) yang merupakan algoritma konstruktif. Desain tata letak dilakukan dengan memperhatikan aspek yang diperlukan dalam CPPB- IRT. Hasil dari desain tata letak area produksi menunjukkan bahwa terdapat delapan ruangan dengan dimensi yang dibutuhkan sebesar 16,09 m2. Hasil simulasi menggunakan perangkat lunak Flexsim menunjukkan bahwa jarak total perpindahan material dalam desain tata letak adalah 41,46 meter.
Keyword: CORELAP, CPPB, Ginger Leather Candy, Layout Design, Systematic Layout Planning

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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