Papers by Sawarni Hasibuan
Jurnal Manajemen Transportasi & Logistik, 2018
The aim of the study is to measure the selection criteria of subcontractor fly over construction ... more The aim of the study is to measure the selection criteria of subcontractor fly over construction project and to level the subcontractors based on five criteria which are financial factor, practical factor, managerial, safety, and company's image. The right subcontractor as partner is the important factor for main contractor in building the fly over based on the schedule and the budget with good quality. The study was using ANP (analytic network process) to evaluate the criteria interrelation of main contractor when making decisions of uncertainty situation to be better. The subject of the study is the Tendean-Blok M-Cileduk fly over construction project. The result shows that subcontractor A has the highest result of 0.4798, subcontractor B with 0.3646 and the last is subcontractor C with 0.1556. ABSTRAK Penelitian ini bertujuan mengukur bobot kriteria seleksi sub-kontraktor proyek konstruksi jalan layang, serta peringkat beberapa pilihan sub-kontraktor menggunakan lima kriteria yakni, aspek keuangan, teknis, manajerial, kemanan, dan reputasi perusahaan. Pemilihan sub-kontraktor yang tepat sebagai rekan kerja penting bagi kontraktor utama untuk memastikan proyek pembangunan jalan layang dapat berjalan sukses sesuai target waktu, biaya, dan kualitas. Penelitian ini menggunakan metode analytic network process (ANP) untuk mengevaluasi saling keterkaitan antar kriteria agar kontraktor utama dapat melakukan proses membuat keputusan, dalam situasi penuh risiko (uncertainty), menjadi lebih baik. Subjek penelitian ini adalah proyek pembangunan jalan layang Tendean-Blok M-Cileduk. Hasil penelitian menunjukkan peringkat pilihan sub-kontraktor A dengan bobot tertinggi 0,4798, diikuti sub-kontraktor B dan C dengan bobot 0,3646 dan 0,1556. Kata Kunci: jalan layang; seleksi sub-kontraktor; analytic network process
IOP Conf. Ser.: Mater. Sci. Eng, 2018
We are conducted a research at the company of the manufacturing CPO into cooking oil, margarine a... more We are conducted a research at the company of the manufacturing CPO into cooking oil, margarine and materials of oleochemical industries. Today palm oil based industries are facing global challenges related to environmental issues. To against these challenges, it is necessary to have an environmentally friendly supply chain. However, the limited resource owned by the company requires the integrated environmental strategy with the company's business strategy. The model is developed based on management orientation towards external pressure, internal key resources and competitive advantage that can be obtained as the decision factor. The decision-making method used is Analytical Network Process (ANP). The results obtained institutional pressure becomes the criterion with the greatest influence on green supply chain initiatives and sub criteria of customer desires and stakeholder integration having the most significant influence on green supply chain initiatives. There are five green alternative initiatives that can be done: green product design, greening upstream, greening production, greening downstream and greening post use. For green supply chain initiative, greening upstream is the best priority.
Operations Excellence, 2018
High competition in the lubricants business results in customer services become a benchmark for t... more High competition in the lubricants business results in customer services become a benchmark for the success of this business in Indonesia, One of the services provided is pegudangan system that is part of the supply chain system. The existence of obstacles in the process of handling in and out in a warehouse handling PT Petronas Niaga Indonesia resulted in the need for companies to choose a new warehouse as an alternative lubricants. The number of alternatives which can be used warehouse forced the company to make the process of pre-qualification and qualification process to obtain alternative lubricants warehouse priority desired by the company. In the pre-qualification process lubricants warehouse alternative screening process is done by using the weighted product method to reduce warehouse alternative lubricants in the process of qualifying criteria based lubricants warehouse needs. In the process of qualifying the selection process is then performed by Analytical method Hirarchy Process (AHP) using five criteria: cost, infrastructure, market, safety, and the macro environment. Each of these criteria are translated into sub-criteria. The results obtained qualification process priority is the best lubricant warehouse is PT GAC Samudra Logistics with the highest weight, followed by PT Wiraswasta Gemilang Indonesia and PT Jaya Puninar with weights respectively and PT GAC Samudra Logistics superior in infrastructure and safety criteria, while PT Wiraswasta Gemilang Indonesia superior at cost and market criteria. PENDAHULUAN Peran gudang bagi suatu perusahaan besar sangat penting untuk kelancaran aliran barang. Gudang merupakan bagian dari sistem rantai pasok perusahaan yang menyimpan item-item material (raw material, parts, goods-in-process, finished goods) pada dan dari titik sumber (point-of-origin) ke titik konsumsi (point-of-consumption). Gudang mempunyai peranan yang sangat penting untuk keberhasilan perusahaan dalam mendukung kelancaran rantai pasok produk. Sebagai salah satu perusahaan pelumas, PT. PNI dihadapkan pada permasalahan penentuan lokasi gudang distribusi pelumas. Selama ini perusahaan menggandalkan gudang distribusi dari salah satu perusahaan jasa logistik yang berlokasi di Cibitung Bekasi. Pada awalnya gudang distribusi tersebut dianggap tepat karena lokasinya dekat dengan pabrik pemasok pelumas (blending plant), namun dalam perjalanan waktu timbul beberapa kendala pada sistim operasinya. Indikasinya adalah 60 persen waktu tunggu untuk aktivitas bongkar-muat barang (handling in/handling out) telah melampaui batas waktu 3 jam yang dipersyaratkan perusahaan (PT PNI, 2014). Kondisi ini berimplikasi pada tingginya komplain dari pelanggan sehingga bisa berdampak pada kinerja rantai pasok perusahaan. Selama ini proses pemilihan gudang distribusi pelumas di PT PNI yang merupakan bagian dari proses pengadaan barang dan jasa lebih memperhatikan kriteria efisiensi biaya. Efisiensi biaya bukanlah satu-satunya kriteria keberhasilan sistem distribusi yang harus dicapai. Mengingat permasalahan lokasi gudang distribusi cukup kompleks maka dipandang perlu untuk mengembangkan kriteria dan proses seleksi gudang distribusi pelumas yang lebih baik agar kinerja gudang distribusi pada kasus produk pelumas di PT PNI dapat dioptimalkan. Terdapat beberapa metode yang selama ini dipergunakan dalam membantu mengambil keputusan gudang distribusi, diantaranya adalah metode Analytical Hierarchy Process (AHP). Metode Analytical Hierarchy Process (AHP) merupakan salah satu model pengambilan keputusan pada situasi kompleks yang dikembangkan oleh Saaty (1991). Pada metode AHP, permasalahan multi faktor atau kriteria jamak yang kompleks distrukturisasi menjadi suatu hirarki yang lebih sederhana. Metode AHP telah digunakan cukup luas oleh beberapa peneliti terdahulu dalam pemilihan sistem pergudangan yang lebih baik (Erkan
World Academy of Science, Engineering and Technology, 2018
—Competitiveness and sustainability issues not only put pressure on big companies, but also small... more —Competitiveness and sustainability issues not only put pressure on big companies, but also small and medium enterprises (SMEs). SMEs Batik Bogor is one of the local culture-based creative industries in Bogor city which is also dealing with the issue of sustainability. The purpose of this research is to develop framework of sustainability at SMEs Batik Indonesia case of SMEs Batik Bogor by integrating innovation of cleaner production in its supply chain. The approach used is desk study, field survey, in-depth interviews, and benchmarking best practices of SMEs sustainability. In-depth interviews involve stakeholders to identify the needs and standards of sustainability of SMEs Batik. Data analysis was done by benchmarking method, Multi Dimension Scaling (MDS) method, and Strength, Weakness, Opportunity, Threat (SWOT) analysis. The results recommend the framework of sustainability for SMEs Batik in Indonesia. The sustainability status of SMEs Batik Bogor is classified as Moderate Sustainable. Factors that support the sustainability of SMEs Batik Bogor such is a strong commitment of top management in adopting cleaner production innovation and creativity approach. Successful cleaner production innovations are implemented primarily in the substitution of dye materials from toxic to non-toxic, reducing the intensity of non-renewable energy use, as well as the reuse and recycle of solid waste. " Mosaic Batik " is one of the innovations of solid waste utilization of batik waste produced by company R&D center that gives benefit to three pillars of sustainability, that is financial benefit, environmental benefit, and social benefit. The sustainability of SMEs Batik Bogor cannot be separated from the support of Bogor City Government which proactively facilitates the promotion of sustainable innovation produced by SMEs Batik Bogor.
www.ijasre.net, 2018
Nowadays in very tight competition age, minimization of defect rate is targeted at all manufactur... more Nowadays in very tight competition age, minimization of defect rate is targeted at all manufacturing production lines including in the process of automotive battery production. The purpose of this study was to reduce the dominant defect rate in the pasting process with Kaizen approach through 8 PDCA cycles. Kaizen implementation involves all parties in the company both management and employees in order to obtain optimal results. The eight cycles performed on Kaizen implementation are (i) Determination of theme, (ii) Targeting, (iii) Analysis of current conditions and problem-causing analysis, (iv) Root cause analysis of the problem, (v) Improvement plan, (vi) Implementation of the improvement, (vii) Evaluate the results, (viii) Standardization. Before Kaizen applied defect rate in the production process automotive batteries of 2.47% with the largest type of defect is plate scrap on the pasting process with a ratio of 2.45%. Kaizen implementation through 8 PDCA cycles implemented during 6 months managed to lower the defect rate to 1.52% or 0.08% better than the target set by the company of 1.60%. Improvements made due to jamming plate interference contributed to a 38 percent reduction in scrap plate in the pasting process.
— The development of biofuel industry in Indonesia represents the emerging phase, because of the ... more — The development of biofuel industry in Indonesia represents the emerging phase, because of the impetus of government commitment to reduce greenhouse gas emission regulations which are decanted in President Decree No. 61 the year 2011. Indonesia has committed to reducing greenhouse gasses by 26% below 2005 levels, equivalent to 767 million tons of greenhouse gasses on their own. National Energy Policy set to blending bioethanol in premium 10% and 20% in 2020 and 2050 respectively. Potency that owned by Sumba Island, especially in east eastern Indonesia, encourages the growth of bioethanol industry regarding the availability of raw material resources and tropical climate for biofuel crop cultivation. Therefore it is necessary to analyze the feasibility of bioethanol production from potential raw materials in Sumba Island. It combines a Bayes method with financial analysis and a Strengths, Weakness, Opportunities and Threats (SWOT) framework to propose the development strategy of sustainable bioethanol industry in the Sumba Island. Recommended feedstock for the development of the bioethanol industry in Sumba Island is sweet sorghum and cassava. Financial feasibility assessment of bioethanol industry is based on the assumption that at least 70% of the feedstock is supplied by the company's land and the rest comes from the farming communities. The proposed integration pattern is by integrating the ethanol industry with bio-farming and bio-manure to utilize the waste completely. The development of bioethanol industry in Sumba Island is still faced with many obstacles, including the sustainability of feedstock both for cassava and sweet sorghum, infrastructure constraints, and regulation enforcement. Alternative strategies for the development of an integrated bioethanol industry are (1) conducting intensification and extensification of agricultural land to meet the needs of raw materials, (2) promoting technological innovation and institutional innovation to accelerate the delivery and adoption bioethanol, and (3) developing bioethanol industry cluster that is supported by the infrastructure cluster.
MAKARA of Science Series, 2010
Biodiesel from Low Grade Used Frying Oil Using Esterification Transesterification Process. The ai... more Biodiesel from Low Grade Used Frying Oil Using Esterification Transesterification Process. The aim of this research was to obtain the optimal condition for the production of biodiesel from low grade used frying oil through the esterification transesterification process. The experiment was arranged in Completely Randomized Design with Duncan's advanced test. Results showed that the biodiesel FFA content is ranged between 0.167 to 0.795% (P<0.01) from the 0.5 to 3.06% initial rate, with the biodiesel yield between 69.7 to 94.2%. The esterification-transesterification stage were evidently able to increase the quantity and quality of biodiesel from used frying oil. By esterification, the yield increased and the FFA content reduced. Transesterification with 6:1 methanol molar ratio and 1.5% catalyst could increase the yield up to 9.9%. The testing of four biodiesel property parameters showed that biodiesel from used oil of tofu and chips factories, and chicken fast food 1 and 2 that had been esterified met the requirements of the Indonesian National Standard (INS) 04-7182:2006 for biodiesel. Whereas directly processed biodiesel (without esterification) from used oil of chicken fast food 1 known in terms of its acid number, did not meet the requirements.
Traditional batik industrial wastewater is not well treated so far. The waste is simply dumped in... more Traditional batik industrial wastewater is not well treated so far. The waste is simply dumped into the surrounding water bodies. Raw wastewater quality characteristics of batik small and medium enterprises (SMEs) included pH (6.05), turbidity (1306 NTU/Nephelometric Turbidity Unit), TSS/Total Suspended Solid (1248 mg/l) and COD/Chemical Oxygen Demand (3712.5 mg/l).
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Papers by Sawarni Hasibuan