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Evaluasi Stimulasi Hydraulic Fracturing Menggunakan Software Mfrac
Get PDFPerekahan hidraulik (hydraulic fracturing) merupakan suatu usaha untuk meningkatkan produktivitas suatu sumur dengan jalan membuat saluran konduktif bagi fluida produksi untuk mengalir dari reservoir menuju sumur. Keberhasilan dari pelaksanaan perekahan hidraulik ini dapat diketahui dari beberapa parameter. Adapun parameter keberhasilan tersebut diantaranya peningkatan permeabilitas formasi, peningkatan indeks produktivitas (PI) dan peningkatan laju produksi.Tujuan dari Perekahan hidraulik akan membahas evaluasi keberhasilan setelah perekahan hidraulik dilakukan, dimana yang menjadi acuan adalah kenaikan permeabilitas dan peningkatan laju produksi.Metodologi penelitian ini, menggunakan software MFrac Simulation dari Meyer & Associates, Inc. yang dimiliki oleh service company. Dengan memasukkan data reservoir, data lithologi batuan, data komplesi sumur, data proppant,data fluida perekah serta data-data lain yang terkait. Adapun tahap-tahap dari operasi stimulasi hydraulic fracturing ini meliputi step rate test, minifrac, evaluasi minifrac, dan main fracturing. Peningkatan produktivitas sumur terlihat sangat jelas dari hasil perbandingan productivity index (PI) sebelum dan sesudah hydraulic fracturing. Hasil perhitungan memperlihatkan bahwa dari hasil software Mfrac menunjukkan nilai PI naik 2,8126 kali lebih besar daripada PI sebelum hydraulic fracturing.Hydraulic fracturing is an attempt to increase the productivity of a well by making a conductive channel for the production fluid to flow from the reservoir to the well. The success of the implementation of hydraulic fracturing can be seen from several parameters. The success parameters include increasing formation permeability, increasing productivity index (PI) and increasing production rates. The purpose of hydraulic fracturing will be to discuss the success of the evaluation after hydraulic fracturing is done, where the reference is to increase permeability and increase the rate of production. The methodology of this research, using MFrac Simulation software from Meyer & Associates, Inc. owned by a service company. By entering reservoir data, lithological data of rocks, well completion data, proppant data, recycled fluid data and other related data. The stages of hydraulic fracturing stimulation operations include step rate test, minifrac, minifrac evaluation, and playing fracturing. Increased productivity of the well is very clear from the results of the comparison of productivity index (PI) before and after hydraulic fracturing. The calculation results show that from the Mfrac software results show the PI value increases 2.8126 times greater than the PI before hydraulic fracturing
Spiritual Emotional Freedom Technique (SEFT) untuk Menurunkan Stres pada Pasien Hipertensi
Get PDFThis study aims to determine the differences in stress levels in hypertensive patients before and after treatment given SEFT intervention. The design used in this research is one group pretest-posttest design. Subjects in this study were male and female hypertensive patients, aged 40-60 years, had a stress score with moderate to high stress level, minimal junior high school education. Subjects in this study amounted to 5 people. Stress was measured using a stress scale of 28 items. Subjects were treated in the form of SEFT intervention, namely the merging of spirituality (form of prayer and resignation) and psychological energy carried out by three techniques, among others, are set-up, tune-in and tapping. Quantitative data analysis techniques using wilcoxon sign rank analysis is to determine whether there is a difference in stress score between pretest and posttest and posttest and follow up on the subject of research. Analysis of qualitative data from observation, interview, worksheet and evaluation sheet. Based on quantitative results of wilcoxon sign rank test showed that in this study there are significant differences between pretest and posttest with value Z = -2.023ͣ (p <0,050). The results can also be seen from the decrease of mean score between pretest and postest. Pretest with mean score (= 82.20) and posttest with mean value (= 56,20). The posttest average is lower than the pretest average. This means there is a decrease in the score on the pretest average to the posttest. Based on the above explanation can be concluded that the spiritual emotional freedom technique (SEFT) can reduce stress in hypertensive patients. Keywords: Spiritual Emotional Freedom Technique (SEFT), Stress, Hypertension Patient
Collaborative Governance Dalam Pemberantasan Korupsi
Get PDFMeski usaha untuk memberantas korupsi sudah dilakukan dengan berbagai metode, namun praktik-praktik korupsi di Indonesia masih tetap berlangsung. Penyebab korupsi dapat bersumber dari Aspek perilaku individu, aspek organisasi, masyarakat, perundang-undangan serta kecenderungan adanya ongkos politik yang mahal. Strategi preventif, detektif dan represif untuk memberantas tindak pidana korupsi merupakan hal penting yang dapat diterapkan di Indonesia namun memerlukan waktu yang cukup lama.Hal yang sangat diperlukan adalah pelaksanaan Collaborative Governance yaitu kerjasama secara terstruktur antar lembaga-lembaga pemerintah, swasta dan masyarakat melalui tahapan: dialog persiapan awal, membangun sikap saling percaya, membangun komitmen bersama tentang kedudukan, tugas dan kewenangan serta otoritas masing-masing pihak dan membangun sikap saling memahami untuk menghasilkan kesepakatan tentang output yang akan dicapai dalam mengatasi perbuatan tindak pidana korupsi. Hal lain yang sangat diperlukan adalah kemampuan, komitmen dan kemauan politik para pemimpin untuk berkolaborasi dengan lembaga-lembaga lain dalam pemberantasan korupsi. Kata Kunci: Korupsi; Collaborative Governanc
Elastic Recovery Permukaan UHMWPE Berpasangan dengan Baja Tahan Karat 316L, Kobalt Khrom dan Titanium
Get PDFUltra High Molecular Weight Polyethylene (UHMWPE) is a biomedical polymer applied for orthopedic as hip, knee, ankle and lumbar disc implants. The use of this material is common as a joint component paired with metallic biomaterials such as 316L stainless steel (SS 316L), cobalt chrome alloy (CoCr) dan titanium. This application has a wear problem. UHMWPE implants are commonly made with machining processes, i.e. lathe and milling. The effect of machining is the surface roughness of implant products. Polymer highly elastic in which would induce the deformation of surface asperities during loading and unloading. This phenomenon is determined with a parameter called elastic recovery. The magnitude of elastic recovery relates to the wear of the polymer. This research numerically investigated the effect of metallic biomaterial types on the UHMWPE elastic recoveries. Those metals are CoCr, SS 316L, and titanium. Two-dimensional surface asperity models were loaded with physiological gait loads of hip and knee. Results from computational works showed an insignificant difference of UHMWPE elastic recoveries penetrated by the studied metals. Elastic recovery due to SS 316L with knee gait load is 55.19%, equal to CoCr while other results due to titanium are slightly higher, 55.224%. The difference for all metals is only 0.06 %. Contact pressures are also equal, 38.96 MPa (CoCr), 38.98 MPa (316L and titanium)
Hubungan Antara Kontrol Diri dengan Perilaku Melanggar Peraturan pada Santri Pondok Pesantren X di Kabupaten Sleman
Get PDFSelf-control is forms the ability to regulate, guide, and regulate functions that can bring individuals in a positive direction. Self-control will control santri do not things that are’t neededby santri, because it’s contrarythe norms prevailing inthe pesantren.The purpose of this study is to prove the relationship between self-controlwithbreaking the rulesbehaviorby the santri.The benefits of this research are input for caregivers and boarding school administrators in educating and taking care of the santri.The dependent variable of this study isbreaking the rulesbehavior, while the independent variable is self control. The hypothesis of this study isa negative relationship between self-control andbreaking the rules behavior inthe pesantren.The higherlevel of self controlthen lower the behavior breaking the rules.Hypothesis testing with product moment correlation shows the result (rxy) -0.054 with p = 0.750 (p> 0.05). The result meaningis no relationship between the self-controlvariable with the behavior breaking the rules variable at Pondok Pesantren X in Sleman Regency. This means that the hypothesisforward by the researcher is rejected.Keywords: Self-Control,Breaking the rulesbehavior, Santri Pondok Pesantren X.Abdurrohman, W. (1995). pesantren sebagai subkultur. Dalam M. D. Rahardjo (Ed.).Pesantren dan pembaharuan. Jakarta: LP3ES. Arnett, J. (1995). The young and the reckless: Adolescent reckless behavior. Current Direction Psychological Science. 4(3), 67-71. Averill, J. R. (1973). Personal control over aversive stimuli and it’s relationship to stress. Psychological Bulletin. 88: 286-303. Azwar, S. (1999). Penyusunan skala psikologi. Ed. Ke-2.Yogyakarta: Pustaka Pelajar. Chaplin, J. P. (2006). Kamus lengkap psikologi. Jakarta: Raja Granfindo Persada. Ghufron, N. M. & Risnawati, R. (2010). Teori-teori psikologi. Yogyakarta: Ar-Ruz Media. Hurlock, E. B. (1999). Adolescent development. Tokyo: McGraw-Hill Kogakusha. Ltd. Kartono, K. (2003). Patologi sosial: Kenakalan Remaja. Jilid 2.Jakarta: PT Raja Grafindo Persada Kazdin, (1998). Psikologi sosial. Jakarta: Erlangga. Lauster, P. (1978. The personality test. London: Pan Books, Ltd. Lazarus, R. S. (1991). Pattern of adjustment. Tokyo: McGraw-Hill Kogakusha. Ltd. Masyhud, M. & Khusnudilo, M. (2003). Manajemen pondok pesantren. Jakarta: Diva Pustaka. Messina. (2003). Developing self-control. Tokyo: McGraw-Hill Kogakusha. Ltd. Muhajir, Hermanto, & Wahyuni. (2013). Peran pondok pesantren dalam mengatasi kenakalan remaja, jurnal Psikologi. 1-18. Nataatmaja, S. (1998). Pengantar pendidikan kesehatan dan ilmu perilaku kesehatan. Yogayakrta: Penerbit Andi Offset.Santrock, J. W. (2003). Perkembangan masa hidup. Jilid 1 (Penterjemah: A. Chusaini). Jakarta: Penerbit Erlangga. Sekaran, U. (2003). Teknik penyusunan skripsi. Jakarta: Pustaka Jaya. Singgih, D. G. (2006). Dari anak sampai usia lanjut. Jakarta: Gunung Mulia. Zhang, Z. & Avery, R. D. (2009). Rule breaking in adolescence and entrepreneurial status: An empirical investigation. Journal of Business Venturing. 24, 436–447
Pengaruh E-servicescape Online Marketplace Shopee pada Perceived Value dan Kepuasan Pelanggan, serta Dampaknya terhadap Loyalitas Pelanggan
Get PDFOnline marketplace business competition is getting tougher, so customer loyalty is becoming an increasingly important factor for companies. Shopee is one of the increasingly popular online marketplace business in Indonesia. Customer loyalty can be rised through increasing the number of transactions and visits on the Shopee website. E-servicescapes are all elements that companies use to deliver digital services to consumers. The elements of e-servicescapes include aesthetic appeals, layout and functionality, and financial security. The level of customer satisfaction and perceived value of e-servicescapes can increase customer loyalty which have an impact for increasing the number of visits to Shopee\u27s website. The purpose of this study is to determine the e-servicescape elements that most influence the satisfaction and perceived value of Shopee website users. This study used a quantitative approach with primary data derived from Shopee website users. An important contribution of this research is the guideline to improve the quality of e-servicescapes, so that the company is able to get a higher level of customer loyalty. The results of this study indicate that e-service-scapes affect the perceived value and customer satisfaction that can encourage the formation of their loyalty. Other findings show that Shopee has financial security as the best e-servicescape aspect. However, Shopee still needs improvements in the aspects of layout and functionality, because these aspects get the lowest ratings from Shopee website users
Pengaruh Kemiringan dan Jumlah Pisau Pencacah terhadap Kinerja Mesin Pencacah Rumput untuk Kompos
Get PDFCompost can occur by itself through natural processes, but the process takes a long time. The process of organic materials such as grass into compost can be accelerated by the process of being chopped into small pieces first, then mixed with microorganisms. The process of cutting or chopping grass will be faster if done with a chopper machine. The size of the grass\u27s chops significantly affects the composting process. The smaller of the chops, the composting process will be faster because decomposing bacteria touch the surface area. The research aims to study the effect of the inclination and the number of chopper blades on the grass chopper machine\u27s performance. One component that affects the results of a chopper is a blade. The initial stage of this study is to build a prototype chopper with blades made from high-speed steel (HSS). The process of data collection is based on the different blade inclinations, i.e., 0o, 5o, and 10o to the horizontal axis, and the different number of blades, i.e., 2, 3, and 4 with 3,339 rpm motor rotation. The chopping capacity of the machine is measured based on the weight and length of the chops. The results of testing with the same blade inclination and the different number of blades show that with four blades, the weight of the chops is greater, and the percentage of chops with lengths > 1.5 cm is lower. This happens because the frequency of cutting is greater. While the same number of blades, but with different inclination, the weight and percentage of chops with lengths > 1.5 cm tend to be similar due to changes in the cutting platform
Hipnoterapi untuk Peningkatan Perilaku Personal Hygiene Anak Jalanan
Get PDFA city with numerous street children is a big problem. Reducing the number of street children is very difficult and complicated. However, they have to be empowered. In this research one tactic was held to support them. It was to wake up the street children’s personal hygiene behavior. It was because the street children appearance was always dirty and unhealthy. Objective of this research was intervening to those street children with hypnotherapy in order to wake up their personal hygiene behavior. Two street children participated in this experimental research. Their physical cleanliness was categorized as low. The experimental design was the A-B-A-B-A or single case experimental design. This research revealed that the hypnotherapy intervention succeeded to improve subjects’ personal hygiene behavior. Before intervention, their physical cleanliness was categorized as low. The cleanliness scores were 20 and 22 respectively. After receiving hypnotherapy intervention, their cleanliness scores were 40 and 42 respectively (categorized as middle cleanliness level). Those two subjects also reported that they felt physically comfort. It was because their itch skins were cured. This research demonstrated the advantageous of hypnotherapy in getting better subject’s personal hygiene. Key words: Hypnotherapy, Personal Hygiene Behavior, Street Children
Analisis Kinerja Keuangan dengan Metode Economic Value-Added pada Studi Kasus Perusahaan Subsektor Pertambangan Minyak dan Gas Bumi yang Terdaftar di Indeks Saham Syariah Indonesia (ISSI)
Get PDFOil and gas are non-renewable natural resources, whick means they can be exhausted within a certain periode of time, if no new reserves of oil and natural gas resources are found. Energy, especially oil and gas, is very limited amount, but the world’s needs for oil and gas are currently increasing, so making investments in the oil and gas mining subsector will be an attractive choice for investors. World demand of oil and gas increases, while the limited its availability in each country has caused fluctuations in its exports and imports. They face a difficult assessment of the company performance in this subsector. Therefore, we need an analysis of the financial performance in oil and gas mining subsector companies as a tool to assess how the performance of the in this area. Economic value-added (EVA) method is one of the right measurement tools to assess the performance of companies in the mining sector. The aim of this study is to determine the financial performance of companies by using the EVA (economic value-added) method in the oil and gas subsector companies listed on the ISSI (Indonesian Sharia Stock Index) in period 2013-2017. The calculation of EVA value of a company is preceded by determining the value of Net Operating Profit After Tax (NOPAT), Weighted Average Cost of Capital (WACC), capital charges (CC), and invested capital (IC) from data that has been collected in the secondary sources. Four companies in oil and gas mining subsector listed on the Indonesia Sharia Stock Index (ISSI) were analyzed in this research. The results showed that two companies have positive EVA, while rest of two companies have positive and negatif EVA in certain years. A positive EVA means that there is an economic added-value to the company
Kualitas Layanan dan Kepuasan Pelanggan: Studi Eksplorasi atas Atribut Kualitas Layanan pada Fakultas Ekonomi Universitas Wijaya Kusuma Surabaya
Get PDFThe purpose of this study was developing a service quality model in the business of higher education services at the Faculty of Economics, University of Wijaya Kusuma Surabaya, Indonesia which is grounded that can be used as the foundation of researchers in a service research and implementation for business practitioners of higher education services. This research used a qualitative research design with a critical incident technique model, which explored the answers of the student respon-dents and alumni service users to examine deeper the experience of understanding the most satisfying and the most unsatisfaction of institutions