bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Choke Management on Fracture Closure and Well Performance in Shale Reservoirs with Natural Fractures
Authors: Liu Chuxi , Xie Hongbing , Mao Zhenyu , Yu Wei , Li Ning , Gong Yiwen , Leines Joseph , Miao Jijun , Sepehrnoori Kamy 
Published: September 2023

ABSTRACT
Choke management and important aspect of an oil or gas well production life cycle. Effective understanding and modelling of choke management usually revolves around different paths of bottomhole drawdown. Limited numerical study of choke management within fractured reservoirs has been dedicated. In this paper, examinations of effects of choke management on a shale gas well performance is conducted, with the help of embedded discrete fracture model (EDFM). A realistic geological setting is also incorporated by simulation of a corner point structural model with complex 3D natural fractures and geometrically varying hydraulic fractures. This study also proposes a novel method to model conductivity distributions within hydraulic fractures to approximate proppant concentration distributions. Three choke management strategies are invested, each with distinct degrees of fracture closure. The results show that a 7.3% more cumulative production can be achieved for a mild choke strategy than an aggressive one. Although aggressive choke can produce more gas in the early period, it is exceeded by the conservative strategy after less than 1 year. The proposed model is accurate, robust, and consistent enough to help analyze other shale gas play at interest, and also to be extended to three phase shale oil reservoirs.

INTRODUCTION
While choke management numerical simulation is relatively less challenging in conventional oil/gas development, analysis under unconventional reservoir settings can be difficult. In unconventional horizontal wells, hydraulic fractures are man-made using proppants to open the fracture (Ellafi et al., 2020). As bottomhole pressure reduces to allow hydrocarbon flows, proppants are crushed or embedded into the rock matrix (Wijaya and Sheng, 2020). Different paths for bottomhole pressure (BHP) drawdown affects degrees of proppant crushing/embedding differently, thus yielding different production (Almasoodi et al., 2020). Depending on the operators’ project planning and objectives, BHP drawdown rates can range anywhere from 1 atm (conservative) to 6.5 atm (aggressive) per day (Wilson et al., 2016; Rojas and Lerza, 2018). A conservative strategy minimizes proppant conductivity loss throughout production period (Bagci and Stolyarov, 2019); while an aggressive one jeopardizes the proppant integrity leading to quick fracture closure (Tompkin et al., 2016).
Computational-Experimental Approach for Determining Material Parameters of Bentonite Clay in Engineered Barrier Systems for Nuclear Waste Repositories
Authors: Rahmani Mohammad , Azzam Abdullah , Grasley Julia , Kim Yong-Rak , Eun Jongwan , Kim Seunghee 
Published: September 2023

ABSTRACT
Bentonite clay is a common material used in engineered barrier systems (EBS) to isolate the nuclear waste and protect the environment. However, its performance can be affected by changes in environmental conditions, such as high temperatures and water evaporation. The high temperature around the canisters causes the water in the bentonite to evaporate, leading to shrinkage and desiccation cracking, which in turn may compromise its sealing function and increase the risk of contaminating the surrounding soil. This study aims to determine the shrinkage and fracture properties of desiccating bentonite clay. To accurately understand and predict the desiccation behavior of the engineered buffering material, restrained ring tests were conducted and the shrinkage behavior was observed using a digital image correlation system. A finite element model was used to simulate shrinkage and desiccation cracking of bentonite clay. Through an inverse optimization process, the shrinkage coefficients and moisture-dependent cohesive zone fracture parameters of the bentonite were inversely identified. These fracture and geometrical stability parameters are essential for designing effective engineered barrier systems for the safe storage of nuclear waste. The presented experimental-computational method can determine material characteristics subjected to complex multi-physical conditions with damage.

INTRODUCTION
The potential risk associated with desiccation cracking exists in many engineering applications, such as designing engineered barrier systems (EBS) for geological repositories (Narani et al., 2020; Rayhani et al., 2007). When exposed to high temperatures, water evaporation within the buffer material [commonly bentonite clay] adjacent to the nuclear-spent fuel canisters leads to shrinkage of the bentonite body (Peron et al., 2009). Considering the confined configuration of EBS, the induced shrinkage process becomes mechanically restrained, leading to the development of tensile stresses and desiccation cracking (Nahlawi et al., 2004).
As the soil desiccates, its stiffness, tensile strength, and properties of its bonding with other materials can significantly change (Sanchez et al., 2013; Song & Cui, 2020; R. Tollenaar et al., 2017). Understanding the evolution of the buffer material properties throughout the lifetime of a geological repository is imperative, as these systems are designed to provide long-term confinement and isolation of nuclear-spent fuels.
The Use of Digital Image Correlation (DIC) to Investigate the Effect of Layering and Bedding Plane Orientations on Young's Modulus and Poisson's Ratio Measurements of Buckinghorse Shale Samples
Authors: Haile B. F. , Magsipoc E. , Grasselli G. 
Published: September 2023

ABSTRACT
Anisotropy due to heterogeneities in rocks, such as shale, affects the mechanical properties of the rock depending on their orientation and arrangement. For instance, layering and pre-existing cracks can create potential weak planes. Hence, a measurement technique that can capture spatially detailed deformation, such as digital image correlation (DIC), is important for the investigation of the effect of rock heterogeneities. This technique enables a larger field of view than conventional strain gauges measurements. In this study, the effect of bedding planes on the macroscopic failure patterns of shale samples from the Buckinghorse Formation was investigated using unconfined compressive strength (UCS) tests. The DIC analysis showed areas of displacement discontinuity and localized strain caused by bedding plane orientation, and that layering has a significant effect on the Young's modulus computation based on the location of sampling and the length of measurement. With load perpendicular to the bedding, the Young's modulus showed significant variance even when measuring across large portions of the sample. As the virtual extensometer length increased, localized effects were smoothed, and the values approached the strain and Young's moduli from the LVDT instrumentation. While the variance of the calculated Poisson's ratio measured along different loading orientations appeared consistent, the stress-strain plots using horizontal virtual extensometers (lateral strain) presented more details on lateral differences with respect to location. Hence, it was shown that local variability in stiffness could potentially affect the mechanical characterization of rocks with strong heterogeneities. DIC analysis, which captures this variability, should be used to complement conventional laboratory instrumentation.

INTRODUCTION
Rocks have various heterogeneities that may affect their mechanical properties. Shale exhibits a transverse isotropic elastic response due to layering from sedimentation. The Buckinghorse shale formation, which is a dark gray shale formation found as part of the Lower Cretaceous shales in northeastern British Columbia (BC) (Chalmers and Bustin, 2008) was selected to be used in this study.
Novel Lossless Positive-/Negative-Grounded Capacitance Multipliers Using VCII
Authors: Faseehuddin Mohammad , Shireen Sadia , Md Ali Sawal Hamid , Tangsrirat Worapong 
Published: September 2023

In the presented research, the second-generation voltage conveyor (VCII) is used in the design of active capacitance multipliers. In this paper, three positive and one negative lossless grounded capacitance multipliers (GCMs) are designed. All of these GCMs are designed using two VCIIs, one capacitor, and two resistors. There is no need for any passive component matching to implement a GCM. The multiplication factor of GCMs can be set/varied by changing the values of two resistances as per requirement. Considering nonideal constraints, GCMs are analysed mathematically to evaluate the effect of nonideal current and voltage transfer gains on the performance of the proposed GCMs. Also, parasitic analysis is conducted to study the effect of VCII node impedance on the performance of the presented GCMs. The simulation analysis is performed using Cadence Virtuoso in 0.18 µm Silterra Malaysia process design kit (PDK). Additionally, the macro-model of commercially available integrated circuit, AD844, is used to design the proposed GCM-2 to further prove the theoretical findings.
Development Of Props Media “Smiling Clock” For Teaching Speaking Skill
Authors: Khamidah Niswatul , Rofi’ah Siti , Widiarini Widiarini 
Published: September 2023

In the seventh grade of MTs Ma'arif Kawedusan, it was found that the understanding of English material was relatively low, because there weren't enough learning tools available to spark kids' interest in studying English.The purpose of the research is to develop props media Smiling Clock for teaching the speaking of telling time material.. In this learning media development research used the ADDIE method, where in this method researchers carried out as many as five stages. Analysis, design, development, implementation, and evaluation. After going through several processes until the product was finished, the researcher validated it. The first validation, the instrument validation, was based on instrument experts' evaluations, it received a score of 93% with the category "Very Valid". The second validation the media validation, was based on media experts evaluations, it received a score of 81% with the category "Valid". The last validation, the material validation was based on material experts’ evaluation, it received a score of 90% with the criteria "Very Valid". Furthermore, revise the product according to the advice of media experts, products that are ready to be tested on students. Trials on students obtained data from student responses to learning, the percentage of answers from student responses that met the standard of "Very Good" was 91%. By considering the result of the research, it can therefore say that the props media Smiling Clock can be used for effective and efficient learning.
Pengaruh Penggunaan Fasilitas Sekolah Terhadap Proses Belajar Peserta Didik Studi Survey di Smk Bina Pangudi Luhur
Authors: Syahira Putri , Suhaimy Firdaus 
Published: September 2023

Fasilitas belajar adalah merupakan sarana dan prasarana yang harus tersedia untuk melancarkan kegiatan pendidikan di sekolah. Sarana adalah semua perangkat peralatan, bahan, dan perabotan yang secara langsung digunakan untuk proses pendidikan di sekolah, meliputi gedung, ruang belajar/kelas, media belajar, meja dan kursi.Fasilitas pembelajaran sangat diperlukan dalam proses belajar mengajar baik yang bergerak maupun yang tidak bergerak agar pencapaian tujuan pendidikan dapat berjalan dengan lancar, teratur, efektif dan efisien.Metode penelitian ini menggunakan metode deskriptif analitis korelasional. Teknik pengumpulan data yang digunakan yaitu observasi, angket. Teknik penentuan sampel menggunakan (sample random sampling) dengan penyebaran angket masing – masing 20 item untuk variable X (Fasilitas Sekolah) dan Variabel Y (Proses Belajar Peserta Didik).Berdasarkan analisis data yang dilakukan dengan perhitungan person product moment dan SPSS versi 25, dapat disimpulkan bahwa Pengaruh Penggunaan Fasilitas Sekolah Terhadap Proses Belajar Peserta Didik sebesar 0,619 atau 62% berada pada tingkat korelasinya sedang atau cukup.Dari hasil penelitian ini, maka dapat disimpulkan bahwa Fasilitas Sekolah berpengaruh terhadap Proses Belajar Peserta Didik . Dengan demikian, semakin baik Penggunaan Fasilitas yang diterapkan maka semakin baik pula Proses belajar Peserta Didik sehingga tujuan pembelajaran dapat tercapai secara maksimal.
Nilai-Nilai Pendidikan Islam Dalam Film Upin-Ipin
Authors: Sausan Rumaisha 
Published: September 2023

Film kartun Upin-Ipin adalah sebuah film bernuansa islam, juga memuat nilai-nilai pendidikan. Alasan penulis meneliti film ini karena banyaknya pendidik dan orang tua yang mengenyampingkan film tersebut sebagai media pembelajaran. Metode kualitatif deskriptif penulis pilih untuk mendalami nilai-niai yang terkandung dalam film Upin-Ipin Episode Mulanya Ramadhan dan Tibanya Syawal. Berdasarkan penelitian yang telah dilakukan, ternyata ada banyak nilai-nilai yang bisa dipetik. Seperti mengaji, berpuasa, tolong menolong, meminta maaf, bersikap sabar, mengakui kesalahan, bersyukur, saling berbagi, saling memberi, berbicara jujur, mengucapkan terimakasih, saling menghargai, mengucap salam, dan bersilaturahmi.
Implementasi Sistem Informasi Akademik berbasis Aplikasi Google Classroom Pada Kelas Khusus Olahraga Di SMA Muhammadiyah 2 Boja Kendal
Authors: Rachmawati Dian , Hidayati Dian 
Published: September 2023

Perkembangan teknologi informasi saat ini membawa perubahan signifikan dalam bidang pendidikan. Peran sistem informasi manajemen menjadi sangat penting dalam menghadapi kemajuan teknologi yang pesat. Bagi sekolah, penting untuk meningkatkan dan mengendalikan perkembangan di era revolusi industri 4.0, sehingga teknologi dapat dimanfaatkan dengan baik oleh semua pihak. Salah satu strategi yang digunakan adalah pengelolaan informasi melalui sistem informasi akademik. Penelitian ini bertujuan untuk menganalisis strategi sistem pengelolaan informasi akademik di SMA Muhammadiyah 2 Boja. Metode penelitian kepustakaan digunakan dengan langkah-langkah pencarian topik, pemecahan masalah, dan temuan studi yang relevan untuk menjelaskan dan menghasilkan kesimpulan terhadap topik masalah. Berdasarkan penelusuran literatur, ditemukan bahwa sistem informasi akademik memiliki dampak positif bagi kepala sekolah, guru, pengelola sistem, siswa, dan orang tua, karena mampu memberikan informasi yang efektif dan dapat direspons. Sistem informasi akademik dapat disesuaikan dan dirancang sesuai dengan kebutuhan masing-masing sekolah untuk mendukung kegiatan di dalamnya dimana SMA Muhammadiyah 2 Boja mempunyai layanan kelas khusus olahraga. Strategi sistem informasi akademik dapat mempersiapkan siswa dengan lebih baik menghadapi era digital dan memberi layanan akases pendidikan pada situasi apapun. Implementasi Sistem Informasi Akademik berbasis Aplikasi Google Classroom Pada Kelas Khusus Olahraga Di SMA Muhammadiyah 2 Boja Kendal The development of information technology is currently bringing significant changes in the field of education. The role of management information systems is very important in the face of rapid technological advances. For schools, it is important to improve and control developments in the 4.0 industrial revolution era, so that technology can be put to good use by all parties. One of the strategies used is information management through an academic information system. This study aims to analyze the strategy of the academic information management system at SMA Muhammadiyah 2 Boja. The library research method is used with the steps of topic search, problem solving, and relevant study findings to explain and produce conclusions on the topic of the problem. Based on a literature search, it was found that academic information systems have a positive impact on school principals, teachers, system administrators, students and parents, because they are able to provide effective and responsive information. The academic information system can be customized and designed according to the needs of each school to support the activities within it where Boja Muhammadiyah 2 High School has special sports class services. Academic information systems strategies can better prepare students for the digital age and provide educational access services in any situation.
Implementasi Kebijakan Merdeka Belajar Kampus Merdeka Untuk Meningkatkan Keterampilan dan Kreativitas Belajar Mahasiswa di Stkip Yapis Dompu
Authors: Nurwadahnia Nurwadahnia , Haslan M. Mabrur , Kurniawansyah Edy , Alqadri Bagdawansyah 
Published: September 2023

Merdeka Belajar Kampus Merdeka merupakan salah satu program kebijakan yang sudah di terapkan oleh menteri pendidikan kebudayaan riset pada tahun 2020 untuk menyeimbangi pemeblajaran akibat covid-19 saat itu, merdeka belajar kampus merdeka ini sudah di terapkan di seluruh perguruan tinggi di Indonesia baik yang negeri maupun yang swasta. Hadirnya merdeka belajar kampus merdeka ini memudahkan para pelajar atau mahasiswa di seuruh Indonesia meningkatkan kemampuan soft skill dan hard skillnya. Tujuan penelitian ini untuk mengetahui bentuk implementasi kebijakan merdeka belajar kampus merdeka untuk meningkatkan keterampilan dan kreativitas belajar mahasiswa di STKIP Yapis Dompu. Penelelitian ini menggunakan pendekatan kualitatif dengan jenis penelitian deskriptif. Teknik pengumpulan data menggunakan tekni observasi, wawancara dan dokumentasi. Adapun hasil yang diperoleh yang dapat di simpulkan dalam penelitian ini adalah pelaksanaan Program MBKM yang ada di STKIP Yapis Dompu ada tiga Program yaitu Asistensi Mengajar, Pertukaran Pelajar (Mahasiswa), dan Kewirausahaan (UKM) Merdeka, dengan Faktor kendalanya adalah 1) Proses Bimbingan DPL dilakukan secara Online (Daring) 2) Program Studi kesulitan menyesuaiakan Kurikulum MBKM dengan Kurikulum sebelumnya, 3) Keterlambatan Koversi Nilai Bagi Mahasiswa Yang Mengikuti Program MBKM, 4) Banyaknya pengeluaran Anggaran Dana bagi mahasiswa yang mengikuti Program MBKM.
Perbandingan Manajemen Sekolah Biasa dengan Manajemen Boarding School
Authors: Fadilah Ahmad Arif , Nurjanah Fitria , Qurani Fathiya Cahaya , Sefani Nur Aliza , Wahyu Rahma Rizkiya , Agustin Renny , Asmoro Shifa Nur , Septi Syafani Mayang , Mulyaningsih Yuni 
Published: September 2023

Background is the focus of this study is the comparison of ordinary school management with boarding school management for improvement or additional management in schools so that it not only aims to improve the quality of learning and realize national education goals but also pay attention to education. wider Islam so that this generation becomes a generation with good character in accordance with the objectives of character education. The purpose to provide knowledge about the differences between ordinary school management and boarding school management which can later be reviewed for management improvement in schools so that they can improve the quality of schools by also paying attention to Islamic education. The method used is a type of library research, namely systematic activities related to the methods of collecting library data, reading it, writing and reviewing research materials. As a results There needs to be a new touch in the concept and practice of education management. The need for an increase in religious matters in ordinary school management in order to realize the goals of character education and the need for more attention and assistance with facilities for boarding schools. The conclusion is that proper management is needed to achieve educational goals in improving quality. Ordinary schools and boarding schools are all equally good places to gain knowledge, it's just a matter of reforming and realizing better school management by also increasing Islamic education for children who have good faith and character. That’s why to reach the dreams of the nation's children, it is necessary to improve facilities and highly qualified teaching staff.
Effects of Nigella Sativa Seed on Rumen Parameters, Digestibility, and Nitrogen Balance of Nubian Goat Fed Aflatoxin Contaminated Diet
Authors: Elfaki Mahmoud O. A. , Elkhair Nawal M. 
Published: September 2023

Introduction: Animal health and productivity can be affected by Aflatoxin in feeds, which leads to reduced growth, decrease feed efficiency and potential contamination of animal-derived products. The current study investigated the influences of supplementing Nigella sativa (NS) seeds to an Aflatoxin-contaminated diet on rumen parameters, digestibility, and nitrogen balance of male Nubian goats.
Materials and methods: A total number of 20 healthy male Nubian goat kids aged 8-9 months and an average weight of 11 ± 0.5 kg were randomly assigned to 5 equal groups. The control group (T1) received a basal diet. The second treatment group (T2) received the same diet contaminated with 150 ppb Aflatoxin and other treatments received an aflatoxin-contaminated diet supplemented with different levels of crushed NS seeds including 2% (T3), 4% (T4), and 6% (T5) of the total dry matter. Through using naturally infected groundnut cake, Aflatoxin was mixed with other ingredients of ration in different proportions to formulate treated diets. High-performance liquid chromatography was used to determine Aflatoxin concentration. Rumen liquor samples were collected after 40 days feeding period to evaluate rumen pH, volatile fatty acids (VFAs), ammonia nitrogen (NH3-N), rumen electrolytes, and protozoa count.
Results: Rumen pH, ammonia nitrogen, ruminal sodium, and potassium were not significantly affected by the treatment groups. Rumen volatile fatty acids, protozoa count, nutrient digestibility, and nitrogen retention were significantly reduced by an Aflatoxin-contaminated diet (T2) compared to other groups. Supplementation of NS seeds to an Aflatoxin-contaminated diet caused a significant increase in VFAs, decreased protozoa count, and improved digestibility and nitrogen retention in all treated groups compared to T2 and T1 groups.
Conclusion: Supplementing NS seeds to an Aflatoxin-contaminated diet positively affected rumen ecology and improved digestibility and nitrogen retention. The study recommended supplementing 6% of NS seeds to goat diets can reduce the negative effects of Aflatoxin in the diet.