Mitigating Inorganic Scaling Using Synthetic Zeolite

Inorganic scaling is a predominant formation-damage mechanism in most producing and injection wells worldwide. It occurs in the well tubing and near well bore formations of the production and injection wells. Carbonate and sulfate are two main types of scales commonly found in the oil fields. The deposition of scale on surfaces and production equipment is a major production problem. Scale built-up decreases permeability of the formation, reduces well productivity and shortens the lifetime of production equipment. In this project Zeolite Socony Mobil-5 (ZSM-5) has been used to mitigate the inorganic scaling, as it has high selectivity and high ion exchange capacity. The objectives of this project are to analyze the potential of synthetic zeolite in mitigating inorganic scaling and to examine the changing in permeability of the rocks subjected to the fluid treated with synthetic zeolite. For the scope of study, the literature review on inorganic scaling, synthetic zeolite and permeability of the rock have been done. There are two experiments have been conducted during this project, which are Zeolite Ion Exchange Experiment and Permeability Test. Then, the project is continued with analyzing the sample solution taken from Zeolite Ion Exchange Experiment with X-Ray Diffraction (XRD) and X-Ray Fluorescence (XRF). From here, the mineral composition and chemical elements of ZSM-5 can be analyzed. Based on the results obtained from XRF, ZSM-5 has shown its capability in absorbing barium and sodium ions. Meanwhile for the permeability test, there is reduction in permeability of the core samples based on the sample solutions used. These sample solutions that are treated with synthetic zeolite have lower permeability reduction compared to untreated sample solutions. In this study, it is found that synthetic zeolite exhibits potential in mitigating inorganic scalin

Engine Testing of Gasoline and E5, E10, E15 and E20 Ethanol Blends

The project is about comparing the ethanol blends with neat gasoline. The purpose of the study is to compare the performance of the engine prior to the usage of neat gasoline and ethanol blends. A study of Alvydas Pikunas et. al. however shown that there is possibility of engine performance increment due to the properties of the ethanol in the blends

HUBUNGAN STATUS GIZI DENGAN USIA MENARCHE PADA SISWI SEKOLAH MENENGAH PERTAMA NEGERI 2 KOTA BANDA ACEH TAHUN 2014

KEMENTRIAN PENDIDIKAN DAN KEBUDAYAANUNIVERSITAS SYIAH KUALAFAKULTAS KEPERAWATANSKRIPSI21 JANUARI 2014VI Bab + 50 hal + 9 tabel + 1 skema + 10 lampiranMIRAZI ASYRAF0907101020008HUBUNGAN STATUS GIZI DENGAN USIA MENARCHE PADA SISWISEKOLAH MENENGAH PERTAMA NEGERI 2 KOTA BANDA ACEHTAHUN 2014.ABSTRAKMenarche merupakan menstruasi pertama yang terjadi pada seorang wanita.Karena asupan gizi semakin baik usia menarche menjadi semakin cepat, banyakremaja yang sudah mengalami menarche pada usia dini. Tujuan penelitian iniuntuk mengetahui hubungan status gizi dengan usia menarche. Jenis penelitianadalah deskriptif korelatif menggunakan pendekatan Retrospectif. Pengambilansampel menggunakan tehnik Purposive sampling dengan mengukur BB dan TBsiswi sebanyak 200 orang siswi yang sudah mengalami menarche, pengumpulandata dengan menggunakan lembar observasi, untuk status gizi menggunakanrumus IMT/U dan untuk usia menarche dengan wawancara. Tehnik analisis datamenggunakan uji statistik chi-square. Hasil penelitian didapatkan status gizidengan kategori kurus (28,0%), normal (54,5%), gemuk (17,5%). Untuk usiamenarche 13 tahun (3,0%). Hasilpenelitian bivariat didapatkan ada hubungan antara status gizi dengan usiamenarche pada siswi Sekolah Menengah Pertama Negeri 2 Kota Banda Acehdengan (P-value 0,0001). Diharapkan kepada pihak sekolah agar lebihmemperhatikan kesehatan reproduksi pada siswi khususnya menarche, denganmengadakan berbagai penyuluhan tentang menarche dan mengarahkan siswidalam masa perkembangannya agar tidak salah mengartikan banyaknya informasiyang diterima, karena banyaknya informasi yang diterima tidak semuanya benar.Kata kunci : status gizi, menarcheDaftar bacaan : 27 buku + 1 jurnal + 2 skripsi + 4 artikel internet(2001-2013

CFD of Viscoelastic Fluid in Horizontal Flow Pipes

Drilling fluids are non-Newtonian fluids. Non Newtonian fluids mostly are viscoelastic fluid which mean it exhibit both viscosity and elastic properties. Presences of both properties make it hard to predict behavior of the fluid. In order to carry out analysis on it, it is important to understand how viscoelastic fluid works and types that exist. All viscoelastic fluid can be define using viscosity models. Viscosity models are mathematical equation that describes how the fluid reacts when force is applied. Beside viscosity model, Navier-Stokes equation is as important as the viscosity model. Navier Stokes or the governing equation is the equation that will describe the flow. As in fluid the Navier Stokes will play very critical role or we can say it is the fundamental of fluid flow. By putting some boundary conditions and assumptions into the equation, the governing equation for the system can be determined. By combining both, viscosity model and the governing equation, analytical equation for the system can be produce. By solving the equation, the solution for the system can be produce. Simulation is done using GAMBIT as modeler and FLUENT as solver. Simulation is done by inserting physical properties of the pipe or annulus and the properties of the mud. The simulation is done for all three sample of mud that has been experimented. The variation of the velocity and the pressure is check. The result of the simulation can be compared with the analytical solution once it is solved

PENGARUH PENGETAHUAN, PENDAPATAN, RELIGIUSITAS DAN MOTIVASI TERHADAP MINAT MASYARAKAT DALAM PENGARUH PENGETAHUAN, PENDAPATAN, RELIGIUSITAS DAN MOTIVASI TERHADAP MINAT MASYARAKAT DALAM PENGARUH PENGETAHUAN, PENDAPATAN, RELIGIUSITAS DAN MOTIVASI TERHADAP MINAT MASYARAKAT DALAM MEMBAYAR ZAKAT DI BAITUL MAL ACEH SELATAN MEMBAYAR ZAKAT DI BAITUL MAL ACEH SELATAN MEMBAYAR ZAKAT DI BAITUL MAL ACEH SELATAN

ABSTRACT This paper aims to analyze the influence of knowledge, income, religiosity, andmotivation on interests. This research is a quantitative study using survey andquestionnaire methods. The population in this study is all of the people of South Acehwho become muzakki. While the sample is 100 respondents. Data analysis methodused is multiple linear regression analysis. The results showed that simultaneousknowledge, income, religiosity, and motivation had a positive effect on interest. Whilepartially knowledge does not affect interest, income has a positive effect on interest,religiosity does not affect interest, and motivation has a positive effect on interest.Keywords: Knowledge, Income, Religiosity, Motivation, and Interest ABSTRAK Tulisan ini bertujuan untuk menganalisis pengaruh pengetahuan, pendapatan,religiusitas, dan motivasi terhadap minat. Penelitian ini merupakan penelitiankuantitatif dengan metode survey dan kuesioner. Populasi dalam penelitian ini yaituseluruh masyarakat Aceh Selatan yang menjadi muzakki. Sementara sampelnyaberjumlah 100 responden. Metode analisis data yang digunakan yaitu analisis regresilinier berganda. Hasil penelitian menunjukkan bahwa secara simultan pengetahuan,pendapatan, religiusitas, dan motivasi berpengaruh positif terhadap minat. Sedangkansecara parsial pengetahuan tidak berpengaruh terhadap minat, pendapatanberpengaruh positif terhadap minat, religiusitas berpengaruh terhadap minat, danmotivasi berpengaruh positif terhadap minat. Kata Kunci : Pengetahuan, Pendapatan, Religiusitas, Motivasi, dan Mina

PENGARUH DESTINATION IMAGE DAN MEMORABLE TOURISM EXPERIENCES TERHADAP REVISIT INTENTION PADA WISATA ISLAMI KOTA BANDA ACEH

ABSTRAKPenelitian ini bertujuan untuk mengukur Destination Image dan Memorable Tourism Experiences Terhadap Revisit Intention pada Wisa Islami Kota Banda Aceh. Sampel yang digunakan dalam penelitian ini adalah wisatawan yang pernah dan sedang berkunjung ke Kota Banda Aceh yang berjumlah 148 responden. Peralatan pengumpulan data yang digunakan pada penelitian ini adalah kuisioner. Teknik pengambilan sampel yang digunakan adalah Purposive Sampling. Regresi berganda digunakan sebagai metode analisis untuk mengetahui pengaruh dari semua variabel-variabel yang terlibat.Berdasarkan hasil analisis regresi berganda, mengindikasikan bahwa Destination Image berpengaruh terhadap Revisit Intention dan Memorable Tourism Experiences berpengaruh terhadap Revisit Intention.Kata Kunci: Destination Image, Memorable Tourism Experiences, Revisit Intention, Multiple Regression

Dynamic Simulation of Quadruple Tank System

The problem of estimating state of dynamical system from only input and output measurement remain always an important field in the system theory. In fact, observers play a key roles during monitoring of process, a there are shown an essential component in many control application such as output regulation. Ahhough the theories and applications for linear systems are well developed, development of observers for nonlinear system still provides an open area for research. Quadruple tank system and its mathematical model with typical parameters value will be collected from the reflected real system of quadruple tank. Dynamics simulation will be performed and through the MATLAB® enhancement. Various input changes take part. The result of the simulation will be analyzed and reported

Perceptions of smoking on public health practice, factors affecting and the campaign of government : A case study in Universiti Utara Malaysia, Sintok

This review is about the perception of the impact of smoking on public health, the factors that influence and campaigns carried out by the government involving 368 respondents from Universiti Utara Malaysia, Sintok. The instrument used was a set of questionnaire consisting of four section, section A relevant background of the respondents, section B requires the respondent to answer yes, no or do not know to public health, section C, which requires the respondent to answer the questions based on Likert Scale Strongly Disagree (SD), Disagree (D), Not Sure (NS), Agree (A) and Strongly Agree (SA) and section D related to the government's campaign. Data and feedback are processed and analysed quantitatively using SPSS (Statistical Package for Social Sciences) version 21 for frequency, percentage and mean. The study found that peer pressure is a strong factor in influencing more than a factor of smoking parents. The study also found that respondents have knowledge about the effects of smoking on the health angle. As the proposal for further study will focus on its own internal factors that encourage them to smoke more deepl