Investigation of Low Salinity Polymer and Surfactant Flooding in Carbonate Reservoir at Reservoir Conditions

Postponed access: the file will be accessible after 2020-02-28It is estimated that 40-60% of the world’s total hydrocarbon production is from carbonate rocks [1]. Carbonate rocks contain the world`s largest fields in the Middle East (i.e., Ghawar Field, Saudi Arabia). Waterflooding is a low-cost oil recovery process and is by far the most commonly applied method for improving the oil recovery and maintain pressure support to the reservoir. The composition of water was not considered as an important factor influencing the amount of oil recovered. However, during the last decade, the low salinity water injection techniques have become one of the most important studies in the oil industry because of their possible benefits for improving oil recovery compared to conventional seawater injection. Thus, extensive studies have been developed in the composition of the injected water to an emerging Enhanced Oil Recovery (EOR) technology in carbonate and sandstone reservoirs. This increased investigations on the effect of low salinity water on oil recovery [2]. However, the mechanisms for EOR in carbonates are still poorly understood. The thesis concerns experimental studies of waterflooding performance in outcrop carbonate rock material. The wettability preference of the rock was changed by aging with crude oil at elevated temperature. The thesis compares the effects and benefits of low salinity brine injection in the tertiary mode, and when combined with a surfactant and a polymer to enhance oil recovery. Also, investigation of how aging time affects oil recovery/production in spontaneous imbibition tests. During secondary mode injection of high salinity brine, the cores resulted in recovery factors of 43-79% OOIP. In the tertiary mode, varying in production was observed, which gave an incremental oil recovery of 1-11% OOIP. It was observed that the unaged cores gave the highest oil recovery compared to aged cores. Combination of low salinity and polymer injection resulted in significant increase in oil recovery (additional 7-11% OOIP). The second low salinity injection after polymer flooding resulted in an incremental oil recovery of 2-2.4 %OOIP in aged cores. Hence low salinity seems to have a good potential in Indiana Limestone outcrop.Masteroppgave i petroleumsteknologiMAMN-PETRPTEK39

Marketing Mix Dalam Pemasaran Digital Brand Hijab Rayyah Dan Peran Brand Hijab Rayyah Dalam Industri Kreatif Sub-Sektor Fashion

Micro, Small and Medium Enterprises (MSMEs) are privately owned or group businesses. Marketing Mix in digital marketing is used by MSMEs so that their products can be recognized by the public both nationally and globally. In digital marketing, people can see products that are marketed digitally. MSMEs actors use the marketing mix to focus marketing efforts. MSMEs Brand Hijab Rayyah in Sidoarjo is an individual business that sells hijab products and has an important role in the creative industry of the fashion sub-sector in Indonesia. This study aims to analyze the marketing mix in digital marketing and the role of the Rayyah Hijab Brand in the Creative Industry, the Fashion Sub-Sector. This study uses a descriptive qualitative method with the marketing mix theory, according to Kolter and Armstrong. Product, price, place, and promotion will be analyzed. The role of the Rayyah Hijab Brand in the Creative Industry, Fashion Sub-Sector. The results of this study are that the Rayyah Hijab Brand implements digital marketing by utilizing Instagram to promote its sales. The strategy used by MSMEs owners is to provide a place for promotion by arranging attractive photos, holding giveaways, making discounts on each product on certain days and offering endorsements to celebgrams. The Hijab Rayyah brand implements 4P (product-price-place-promotion) in its digital marketing mix. The Rayyah Hijab Brand MSMEs also support the development of the Fashion Sub-Sector Creative Industry

GAS CHROMATOGRAPH-MASS SPECTROMETER ANALYSIS AND ACUTE ORAL TOXICITY OF CINNAMOMUM BURMANNII., NESS EX BL. ESSENTIAL OIL

ABSTRACTObjective: Cinnamomum burmannii Nees Ex Bl. essential oil has cytotoxic effect on a lot of cancer cell lines. An investigation was carried out to analyzethe possible chemical components from C. burmannii essential oil and evaluate its acute toxicity, before an effective formulation of C. burmanniiessential oil as anticancer drugs.Methods: This study was analyzed chemical components from C. burmannii essential oil by gas chromatograph-mass spectrometer (GC-MS) andevaluated the acute oral toxicities of C. burmannii essential oil in strain Balb/C mice. Results: This analysis revealed that C. burmannii essential oil contains the active compound cinnamaldehyde (71.814%), trans-cinnamyl acetate(11.09%), coumarin (3.41%), and cineol (1.77%). Acute oral toxicity of C. burmannii essential oil with lethal dose 50 3679.11 mg/kg BW.Conclusion: C. burmannii essential oil contains the active compound cinnamaldehyde, trans-cinnamyl acetate, coumarin and cineol. Acute oral toxicityconclusively indicates C. burmannii essential oil includes category 5 practically non-toxic.Keywords: Gas chromatograph-mass spectrometer, Cinnamomum burmannii, Essential oil, Acute toxicity

Does Fiscal Decentralization Increases Regional Income Inequality in Indonesia?

This paper examines the impact of fiscal decentralization on regional income inequality in Indonesia. This study employs dynamic panel data analysis–the two-step system generalized method of moments (GMM) on 2008-2017 regional level datasets. This study found that regional income inequality indeed increases during the implementation of fiscal decentralization and appears to be exceptionally high for rich provinces. Essentially, this study suggest that fiscal decentralization appears to increase regional income inequality in Indonesia. The results might be due to low regional fiscal capacity in Indonesia, which induces high dependency of local government that further restraints local competition in public goods provision. Keywords: fiscal decentralization, regional income inequality, generalized method of moments (GMM)

Impacto de la acumulación de Beta Amiloide y Tau sobre los déficits cognitivos y sociales en un modelo de enfermedad de Alzheimer

Treball Final de Grau en Medicina. Codi: MD1158. Curs acadèmic: 2017/2018Alzheimer's disease (AD) is a progressive and irreversible neurodegenerative process of the central nervous system associated with age, which is the most common cause worldwide dementia in people over 65 years. In order to have a model of AD, which reprodu ces the neuronal pathology and the typical symptoms of this pathology, a large number of transgenic mice has been characterized. In this study, we used male mice mutant triple transgenic (3xTg - AD) for Alzheimer's disease (APPswe, PS1M146V and Tau P301L) an d control wild genotype B6129SF2 / J. Reflecting what is seen in humans with EA , 3xTg - AD presents cognitive and behavioral deficits, as well as the presence of β - amyloid accumulations (A β ) and hyperphosphorylated tau. The main objective that we propose wit h this study is to determine whether the triple transgenic model of AD presents cognitive and other psychological symptoms (anxiety) disorders, using male mice . For this purpose , several behavioral tests were carried out (elevated plus maze, open field test and object recognition test) observing a higher level of anxiety and hypomotility in male transgenic mice.La enfermedad de Alzheimer (EA) es un proceso neurodegenerativo progresivo e irreversible del sistema nervioso central asociado a la edad, que constituye la causa más frecuente de demencia a nivel mundial en personas mayores de 65 años . Con el objetivo de disponer de un modelo de EA , que reproduzca la patología neuronal y la clínica típica de esta patología, se ha n caracterizado una gran cantidad de ratones transgénicos . En este trabajo hemos empleado ratones machos mutantes triple transgénico (3xTg - AD) para la enfermedad de Alzheimer (APPswe, PS1M146V y Tau P301L) , así como ratones control con genotipo salvaje B6129SF2/J . Como reflejo de lo que se observa en humanos con EA, el ratón 3xTg - AD presenta déficits cognitivos y conductuales , así como presencia de acumulaciones β - amiloide ( Aβ ) y tau hiperfosforilada . El principal objetivo que nos planteamos con este estudio fue dilucidar si en el modelo triple tran sgénico de EA existían alteraciones cognitivas y de otros síntomas psicológicos (ansiedad), empleando para ellos ratones macho s . Con este fin, se llevaron a cabo diversas pruebas conductuales (prueba del laberinto elevado, prueba de campo abierto y prueba de reconocimie nto de objetos) observando un mayor nivel de ansiedad e hipomovilidad en los ratones transgénicos machos

Penerapan Model Pembelajaran Flipped Classroom dalam Meningkatkan Kemampuan Berpikir Kritis Siswa pada Mata Pelajaran Pendidikan Agama Islam

The flow of digital developments has a positive impact on education. Therefore, teachers and students can collaborate in presenting creative and innovative learning that encourages the realization of critical thinking skills in students. This applies to every subject, including the subject of Islamic Religious Education (PAI). This study aims to explain the effectiveness of applying the flipped classroom learning model to increasing students' critical thinking skills in PAI subjects in class XII MIPA SMA Negeri 1 Krembung Sidoarjo. The research method used is the experimental method with the One Group Pretest-Posttest design to explain students' critical thinking skills after applying the flipped classroom learning model. The results of the study show that the application of the flipped classroom learning model has effectiveness in increasing the critical thinking skills of class XII MIPA students in PAI subjects. This is evidenced by the results of the Sig. (2-tailed) which is equal to 0.000. This value indicates (less than) <0.05 of the significance level in the Paired Sample T-Test. Therefore, the flipped classroom learning model can be recommended for its application to improve students' critical thinking skills in PAI subjects at school.The flow of digital developments has a positive impact on education. Therefore, teachers and students can collaborate in presenting creative and innovative learning that encourages the realization of critical thinking skills in students. This applies to every subject, including the subject of Islamic Religious Education (PAI). This study aims to explain the effectiveness of applying the flipped classroom learning model to increasing students' critical thinking skills in PAI subjects in class XII MIPA SMA Negeri 1 Krembung Sidoarjo. The research method used is the experimental method with the One Group Pretest-Posttest design to explain students' critical thinking skills after applying the flipped classroom learning model. The results of the study show that the application of the flipped classroom learning model has effectiveness in increasing the critical thinking skills of class XII MIPA students in PAI subjects. This is evidenced by the results of the Sig. (2-tailed) which is equal to 0.000. This value indicates (less than) <0.05 of the significance level in the Paired Sample T-Test. Therefore, the flipped classroom learning model can be recommended for its application to improve students' critical thinking skills in PAI subjects at school

Pengaruh Gaya Kepemimpinan Terhadap Hubungan Antara Partisipasi Dalam Penyusunan Anggaran Dan Kinerja Manajerial (Survey pada Tiga Rumah Sakit di Kabupaten Bantul)

Penelitian ini bertujuan untuk menemukan bukti secara empiris mengenai pengaruh partisipasi dalam penyusunan anggaran terhadap kinerja manajerial dan sejauh mana gaya kepemimpinan dapat berfungsi sebagai variabel moderating terhadap hubungan antara partisipasi dalam penyusunan anggaran dan kinerja manajerial pada tiga rumah sakit di Kabupaten Bantul yaitu RSUD. Panembahan Senopati, RS. Patmasuri, dan RS. PKU Muhammadiyah Bantul. Jenis penelitian yang dilakukan adalah penelitian kuantitatif dan yang menjadi obyek penelitian ini adalah kepala bidang, kepala bagian atau kepala divisi rumah sakit yang berada di Kabupaten Bantul. Adapun sampel yang digunakan berjumlah 45 responden yang dipilih dengan metode Non Probability Sampling yaitu dengan teknik purposive sampling. Data dianalisis dengan menggunakan analisis regresi berganda dan diolah dengan bantuan SPSS 16 for windows. Hasil penelitian ini menunjukkan bahwa partisipasi penyusunan anggaran berpengaruh (secara statistik) signifikan terhadap kinerja manajerial, sedangkan gaya kepemimpinan berpengaruh (secara statistik) tidak signifikan terhadap hubungan antara partisipasi penyusunan anggaran dengan kinerja manajerial (gaya kepemimpinan tidak memoderasi hubungan antara partisipasi penyusunan anggaran dengan kinerja manajerial)

MODEL REGRESI PROBIT SPASIAL PADA INDEKS PEMBANGUNAN MANUSIA (IPM) DI JAWA TIMUR

Indeks Pembangunan Manusia (IPM) merupakan salah satu tolak ukur untuk melihat aspek-aspek yang relevan dengan pembangunan manusia. Pada penelitian ini, IPM di Jawa Timur dikategorikan menjadi dua berdasarkan rata-rata. Salah satu metode yang digunakan untuk analisis data kategorik adalah model regresi probit. Model regresi probit yang digunakan pada penelitian ini mempertimbangkan efek spasial yaitu disebut model regresi probit spasial. Untuk mengetahui kontribusi spasial, maka model regresi probit spasial dibandingkan dengan model probit. Pemodelan IPM menggunakan model regresi probit memberikan hasil bahwa faktor yang mempengaruhi IPM di Jawa Timur adalah persentase penduduk miskin. Sedangkan untuk model regresi probit spasial, faktor yang berpengaruh adalah tidak hanya persentase penduduk miskin, melainkan tingkat pengangguran terbuka, dan laju PDRB atas harga konstan juga signifikan. Ketepatan klasifikasi dari model probit sebesar 39,4%, sedangkan model probit spasial 44,7%. Berdasarkan persentase ketepatan klasifikasi masing-masing model, model yang lebih baik dalam mengklasifikasikan IPM dengan benar adalah model regresi probit spasial ===================================================================================================== Human Development Index (HDI) is a benchmark to see aspects that are relevant to human development. In this study, IPM at East Java are categorized into two based on the average. One of the methods used for analysis of categorical data is a probit regression model. Probit regression model used in this study consider the spatial effect is called spatial probit regression model. To determine the contribution of spatial, then the spatial probit regression model compared to the probit model. IPM modeling using probit regression model gives results that the factors that affect IPM in East Java is the percentage of poor people. As for the spatial probit regression model, factors that affect not only the percentage of the population is poor, but the open unemployment rate, and the rate of GDP at constant prices was also significant. The accuracy of the classification of probit model by 39.4%, while 44.7% of spatial probit model. Based on the percentage of classification accuracy of each model, a model that better classify correctly IPM is a spatial probit regression model

Pengolahan sampah di Desa Madiredo Kecamatan Pujon

Sampah merupakan salah satu permasalahan yang sampai saat ini masih dihadapi oleh masyarakat pada umumnya. Permasalahan yang paling sering terjadi adalah pembuangan sampah yang tidak diurus dengan baik sehingga mengakibatkan pencemaran lingkungan. Salah satu solusi dalam mencegah pencemaran lingkungan adalah menerapkan pengolahan sampah menggunakan konsep 3R (Reuse, Reduce, Recycle). Proses ini yang dilakukan di TPST Dusun Bengkaras Desa Madiredo Kecamatan Pujon dalam mengolah sampah. Pemilahan sampah organik dan non organik yang sudah dilakukan, menghasilkan karya kerajinan mozaik kaligrafi dari compact disk dan pupuk kompos yang dapat dimanfaatkan masyarakat disana