442 research outputs found

    Re-Design Layout and Allocation of Raw Material Warehouses Using Simulation Methods to Minimize the Handling Cost from Port to Warehouses

    Get PDF
    The high cost of raw materials handling from the port to the warehouses at PT. Petrokimia Gresik has encouraged this research to find solutions to reduce costs in raw material unloading activities. The location of factories and raw material warehouses that are separated from each other, the number of warehouses that are not yet connected with conveyor belts as well as the diverse types of raw materials become its own challenges in operating unloading activities to be more efficient. The layout and allocation of raw materials in the existing warehouses creates high cost of raw materials handling because slow moving raw materials are close to the production location, while fast moving raw materials are far from the production location. In addition, the differences in the existing unloading methods also affect the cost of raw materials unloading, the use of vessel cranes and dump trucks will increase costs, otherwise the use of conveyor belts will minimize the cost of raw materials handling. This research is important to find the layout and allocation of raw materials that have the most efficient handling costs. The steps in this study include (1) data collecting and processing; (2) making conceptual and simulation models, (3) verification and validation tests; (4) developing alternative scenarios; (5) running simulations based on alternative scenarios; (6) comparing scenarios using anova test and cost and benefit analysis. The simulation is done using Arena 14.0 software. The simulation results show that the re-design layout and allocation of 5 warehouses in Factory 2A and Factory 2B is the best alternative scenario. This scenario is proven to be able to minimize the cost of raw materials handling with savings of Rp. 10.958.028.455 per year with an ROI of 108% and a Payback Period of 0,48 years

    Kegagalan Yunani Memanfaatkan Bailout dalam Upaya Mengatasi Krisis Ekonomi Tahun 2008

    Full text link
    Most of the Europen countries has been cautiously observing the contraction of the Greek system which is closely tied to their own economies. It has capture the attention of the world and continued to send warning signs to countries about system of the governance and public finance. Thus, the case of the Greek crisis has been an good example of how bad management of public finances, Regional Institutions, and domestic politics condition can lead to an economic catastrophe. This research is aimed to explain the failure of Greece on overcoming the debt crisis and also its failure using the bailout aid from European Union.This research theoretically has built with rasionalism perspectives on International Relations and supported by Complex Interdepence theories, and also the concept of Diplomatic Bailout in International Politcal-economy. Formulation of all arguments, facts, and theoretical framework on this research is guided by qualitative explanation methods. Scope of this research is Greeces Failure applying the bailout aid from European Union on overcoming its economic crisis.Researcher has formulated an answered-hypothesis which reveals the facts that Greece failure is caused by the complexity of the bailout itself. The complexity came from first, high level of financial interest of European Union to overcome its financial stability than the Greece financial interest itself. Second, the domestic politics condition in Greece and the third is the gap between intergovernmental aspects and national sovereignty within Euro-zone States after crisis.Keywords: European Crisis, Greece Debt Crisis, Greece, European Union, Bailout

    PERBANDINGAN KONFIGURASI ELEKTRODA METODE GEOLISTRIK RESISTIVITAS UNTUK IDENTIFIKASI LITOLOGI DAN BIDANG GELINCIR DI KELURAHAN PIDADA BANDAR LAMPUNG

    Get PDF
    Longsoran merupakan bencana yang terjadi dipengaruhi oleh faktor morfologi, litologi, struktur geologi, hidrogeologi dan penggunaan lahan. Kelurahan Pidada, Kecamatan Panjang, Bandar Lampung merupakan daerah yang kondisi morfologinya berupa perbukitan dengan kelerengan yang curam. Berdasarkan data dari Pusat Vulkanologi dan Mitigasi Bencana (PVMBG) pada bulan Januari-Oktober 2019, daerah penelitian yang berada di Kecamatan Panjang memiliki potensi gerakan tanah menengah-tinggi. Kriteria terjadinya longsoran adalah kelerengan yang cukup curam, terdapatnya bidang gelincir di bawah permukaan tanah yang jenuh air dan banyaknya kandungan air yang berasal dari air hujan yang meresap ke dalam tanah. Salah satu metode geofisika yang dapat mendeteksi litologi dan bidang gelincir adalah metode Geolistrik Resistivitas. Melalui metode ini diketahui daerah yang memiliki kandungan air tinggi yang ditunjukkan dengan nilai resistivitas yang rendah. Pada penelitian ini, dilakukan identifikasi litologi dan bidang gelincir di kawasan rawan longsor dengan menggunakan metode geolistrik resistivitas konfigurasi Wenner-Schlumberger dan Wenner-Alpha. Konfigurasi Wenner-Schlumberger mempunyai penetrasi pengukuran yang lebih dalam tetapi gambaran penampang bawah permukaan beresolusi rendah, sedangkan konfigurasi Wenner-Alpha mempunyai penetrasi pengukuran yang tidak terlalu dalam tetapi gambaran penampang bawah permukaan beresolusi relatif tinggi. Penggunaan kedua konfigurasi ini untuk memanfaatkan kelebihan dan mengurangi kelemahan dari masing-masing konfigurasi pada analisis kelongsoran. Setelah dilakukan pengukuran terhadap 2 lintasan, diidentifikasi litologi dan bidang gelincir daerah penelitian. Berdasarkan hasil pengukuran, konfigurasi Wenner-Schlumberger mempunyai gambaran penampang bawah permukaan yang lebih detail dan penetrasi yang lebih dalam untuk identifikasi litologi perlapisan dan bidang gelincir dibandingkan konfigurasi Wenner-Alpha

    2D Gravity Qualitative Modeling to Identify Bedrock and Volcanic Rocks in South Lampung Region

    Get PDF
    Gravity measurement has been conducted in South Lampung area to study the characteristics of the distribution of bedrock and igneous rocks, especially those that can be utilized for development in the National Strategic Area of the Sunda Strait. This study uses a 2D qualitative modeling method and utilizing spectrum analysis of complete Bouguer anomaly data. Based on the result of modeling of residual gravity anomaly, it was found that the intrusion pattern on Sulan granitoid pluton and surrounding plutons showed a significant intrusion of the body and scattered in some Tarahan area. 2D qualitative modeling shows Paleozoic metamorphic rocks are responsible as bedding rocks, and the spread was identified scattered throughout the study area, although it cannot be ascertained whether the bedrock in the Bakauheni area is precisely the same rock as the bedrock in Tarahan area. Meanwhile, Quaternary volcanic rocks are still dominated by tuffaceous sandstone and breccia. This method also confirms that andesite lava is commonly found as a product of the eruption of Mount Rajabasa and Pre-Rajabasa in the Bakauheni region. Nevertheless, some potential of basaltic andesite rocks can be obtained in monogenetic volcanic zones exposed around the foot of Mount Rajabasa

    Analisis Finansial Budidaya Tomat Di Dataran Rendah Sulawesi Tengah

    Full text link
    The main problem at tomato farm level is low yield compared to potential production. Objective of theresearch was to find out the appropriate packaged technology of tomatoes farming on low elevation. The research wasconducted at Labuan Toposo village, Sub district of Tawaeli, district of Donggala, from December 2003 to April2004. Randomized Complete Block Design was used with five replications. There are three packaged technology wereused : (A) introduce packaged-1 technology, (B) introduce packaged-2 technology, and (C) farmers packagedtechnology as usual. Results of the research showed that the introduce packaged-2 technology was highest in yield andthen followed by introduce packaged-1 technology, while the farmer packaged technology as the lowest. The cost ofthe production for introduce packaged-2 technology is Rp. 16.022.000,-/ha, with the highest of labour cost (Rp.8.000.000,- or 49,9% from total cost), followed by ather cost such as bambooes for stick, fertilizer, pestiside, landrent and the seed is the lowest cost. On the production level of 55,13 t/ha and range of yield price from Rp. 500 – Rp.1.250/kg will get the net income of tomato farm with packaged-2 technology as Rp. 37.069.250, with packaged-1technology were Rp. 20.292.150 and at farmers level is only Rp. 8.089.750. Furthermore, R/C ratio for packaged-2technology were 3,31; packaged-1 technology were 2,30, and farmers level of 1,54. Efficiency level of packkaged-2technology was high than others.Key words : Lycopersicon esculentum, financial analysis, cultivation systems, Central SulawesiPotensi lahan di Sulawesi Tengah masih cukup luas untuk pengembangan tanaman tomat. Permasalahanusahatani tomat di tingkat petani adalah produksi masih sangat rendah dibandingkan dengan potensi produksi yangada. Kajian ini bertujuan untuk mendapatkan paket teknologi budidaya yang sesuai dan secara ekonomis paling layakdigunakan pada USAhatani tomat di dataran rendah. Kajian ini dilaksanakan di Desa Labuan Toposo, KecamatanTawaeli, Kabupaten Donggala, pada bulan Desember 2003 sampai April 2004. Kajian ini menggunakan rancanganacak kelompok dengan lima ulangan. Ada tiga paket teknologi budidaya yang dikaji, yaitu : (A) paket introduksi-1,(B) paket introduksi-2, dan (C) paket teknologi menurut kebiasaan petani (sebagai pembanding). Hasil kajianmenunjukkan bahwa dari tiga paket teknologi budidaya yang dikaji, paket introduksi-2 menghasilkan produksi buahyang paling besar, kemudian diikuti oleh paket introduksi-1, dan yang paling rendah adalah paket petani. Biayaproduksi USAhatani tomat dengan menggunakan paket introduksi-2 adalah Rp. 16.022.000,- per hektare, dengan biayaterbesar pada tenaga kerja Rp.8.000.000,- (49,9 %), kemudian diikuti berturut-turut oleh biaya tiang penyangga,pupuk, pestisida, sewa lahan dan biaya paling sedikit adalah biaya bibit. Pada tingkat produksi 55,13 t/ha dan hargaantara Rp.500 – Rp. 1.250,-/kg, pendapatan bersih USAhatani tomat dengan menggunakan paket introduksi-2 adalahRp.37.069.250,-, paket introduksi-1 Rp. 20.292.150,- dan paket petani Rp. 8.089.750,-. Pada tingkat produksi danharga tomat tersebut di atas, hasil perhitungan R/C ratio untuk paket introduksi-2 adalah 3,31, paket introduksi-1adalah 2,30 dan paket petani 1,54. Meskipun ketiga paket teknologi budidaya tersebut masih memberikan keuntungan,namun tingkat efisiensi tertinggi dicapai pada paket introduksi-2

    Analisis Pengukuran Kinerja Dengan Metode Balance Score Card (Bsc) Di CV Mch Sidoarjo

    Full text link
    CV MCH merupakan Perusahaan koper yang berlokasi di Sidoarjo. Berdasarkan laporan Perusahaan CV MCH kinerja system operasionalnya menunjukkan hasil yang cukup baik, namun pengukuran kinerja secara terintegrasi belum pernah dilakuan. Penelitian ini bertujuan untuk mengukur kinerja CV MCH dengan beberapa aspek terintegrasi, yaitu perspektif keuangan, perspektif pelanggan, perspektif proses bisnis intrenal serta perspektif pembelajaran dan pertumbuhan, menentukan yang dapat dilakukan untuk meningkatkan kinerja Perusahaan. Data yang dipergunakan dalam penlitian ini adalah data sekunder yang diperoleh melalui dokumentasi dan data primer diperoleh melalui instrumen kuesioner. Analisis data menggunakan Metode Balance Score Card (BSC) dan Analytical Hierarchy Process (AHP). Kesimpulan dari penelitian ini adalah; kinerja CV MCH dalam perspektif keuangan (ROE, ROI, SG, ROA), pelanggan (customer acquition, customer satisfaction, on time delivery). proses bisnis internal (kerusakan peralatan, kecelakaan kerja) serta pembelajaran dan pertumbuhan (employee turn over, produktifitas, kepuasan karyawan) tahun 2002- 2004 adalah cukup (dengan nilai ). Bobot masing – masing perspektif adalah perspektif keuangan = 0,4, perspektif pelanggan = 0,27, perspektif proses bisnis internal = 0,2 perspektif pembelajaran dan pertumbuhan = 0,13

    Studi Awal Pembuatan Membran Chitosan-Silica Based dari Berbagai Limbah

    Get PDF
    Jember memiliki potensi perikanan terutama udang sebagai sumber kitin yang merupakan dasar pembuatan kitosan. Kitosan berasal dari limbah kulit udang yang dicampur dengan limbah lain yaitu padatan silika dari Pembangkit Listrik Panas Bumi dan fly ash dari Pembangkit Listrik Tenaga Uap untuk menghasilkan membran yang dapat digunakan dalam filtrasi logam berat dalam air. Membran tanpa silika dibuat sebagai negative control dan dengan silika murni sebagai positive control. Membran kitosan dibuat dengan cara mencampurkan 1,0 gram kitosan dalam 100 mL larutan asam asetat 2% v/v dan 0,8 gram senyawa silika serta 0,5 gram polyethylene glycol. Membran yang telah dibuat diuji untuk menyaring larutan yang mengandung logam berat Cu dan Pb. Konsentratsi optimum dari Cu dan Pb dalam badan cairan dapat dikurangi sebesar 87% dan 80% menggunakan membran kitosan-silika

    SAFETY CLIMATE TO PSYCHOLOGICAL WELLBEING ON CIVILIAN PILOT IN INDONESIA

    Get PDF
    Objective: Psychological wellbeing of the pilot can affect the flight cognitive function of the pilot, thus endangering the safety of the flight. The level of wellbeing of the pilots is related to the safety climate of the pilot. The purpose of this study is to determine the relationship between the safety climate and psychological wellbeing of civilian pilot in Indonesia. Methods: This was an analytic study using cross-sectional method. The sample was determined by consecutive sampling technique. Data were collected by filling out questionnaires by subjects regarding the variables of the safety climate and psychological wellbeing. The data analysis used was multiple linear regression. Results: The safety climate has a significant effect on psychological wellbeing (ß=0.921). The dimensions of the safety climate which have a significant effect are management (ß=0.135), safety systems (ß=0.143), procedures (ß=0.176), training (ß=0.153), communication (ß=0.232), and operations personnel (ß=0.185). Conclusion: Management, safety systems, procedures, training, communication, and operations personnel have significant effects on psychological wellbeing of civilian pilot in Indonesia
    • …
    corecore