bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sistem Pakar Mendiagnosa Kerusakan Smartphone Android Menggunakan Metode Certainty Factor
Authors: Fitriyani Mia , Rohayani Hetty , Santoso Heri 
Published: February 2024

Perkembangan teknologi seperti smartphone adalah telepon internet enabled yang menyediakan banyak fungsi dan manfaat untuk masyarakat luas, tidak hanya untuk SMS dan telpon saja tapi penguna dapat bebas melalukan pekerjaan, karna smarphone mudah di bawa kemana-mana dan juga praktis di bandingkan leptop. dan tetapi, hanya sedikit dari orang yang memakai smartphone yang peka akan masalah-masalah kerusakan pada smartphone, seperti terjadi kerusakan pada bagian hardware smartphone pada sistem IC Power, Display/Touch Screen, Batttyy rusak, Kerusakan LCD, speaker, dan lain-lain sehingga kebanyakan orang tidak sadar dan tidak perduli akan gejala kerusakan tersebut hingga smartphone tersebut benar-benar rusak. Untuk dapat memberikan suatu informasi tentang bagaimana mendeteksi jenis kerusakan dengan mengunakan aplikasi excel untuk mengetahui gejala dari kerusakan dengan mengunakan kode dan rumus certanty factor ketidak pastian jika hasil positif degan presentase tingi maka bisa di katakan yakin dan jika hasil negatif degan presentase rendah maka bisa di katakan tidak pasti Seorang yang bukan pakar atau ahli menggunakan sistem pakar untuk meningkatkan kemampuan pemecahan masalah, sedangkan seorang pakar menggunakan sistem pakar untuk knowledge assistant.Ada dua bagian penting dalam sistem pakar, yaitu lingkungan pengembangan dan lingkungan konsultasi
SISTEM INFORMASI MONITORING PERKEMBANGAN ANAK BERBASIS WEB MENGGUNAKAN METODE RAPID APPLICATION DEVELOPMENT
Authors: Dwi Yulianto  , Folanida  , Rifai Achmad 
Published: February 2024

Sistem informasi yang efektif dalam memantau perkembangan anak berkebutuhan khusus dan mengelola informasi di era modern ini. Penelitian ini bertujuan untuk mengembangkan sebuah sistem informasi yang menggunakan Metode Rapid Application Development (RAD) untuk memantau dan mengelola perkembangan anak pada sekolah luar biasa negeri 11 Jakarta. Metode RAD digunakan untuk mempercepat pengembangan sistem, memungkinkan penggunaan iterasi yang cepat dalam pengembangan perangkat lunak untuk selanjutnya di implementasikan pada sekolah luar biasa negeri 11 Jakarta. Penelitian ini melibatkan langkah-langkah pengumpulan kebutuhan dari pemangku kepentingan, desain iteratif sistem, implementasi, dan pengujian untuk memastikan fungsionalitas serta efektivitas sistem yang dibangun. Sistem yang dihasilkan memungkinkan pemantauan terhadap proses perkembangan yang berisi perkembangan nilai, Kesehatan dan kemampuan anak, memungkinkan tata usaha dan guru untuk dan menganalisis data perkembangan dengan lebih efisien lebih terinci. Penggunaan Metode RAD dalam pengembangan sistem ini memberikan hasil yang memuaskan dengan kemampuan untuk beradaptasi dengan kebutuhan perubahan yang cepat dalam lingkungan sekolah luar biasa negeri 11 Jakarta.. Penelitian ini menunjukkan bahwa penerapan Metode RAD dalam pengembangan sistem informasi monitoring perkembangan anak memiliki potensi untuk meningkatkan efisiensi. Implikasi dari hasil penelitian ini memberikan landasan bagi sekolah luar biasa negeri 11 Jakarta dalam mengadopsi pendekatan pengembangan perangkat lunak yang adaptif dan responsif terhadap perubahan kebutuhan yang dinamis.
Rancang Bangun Prototipe Smart Control System Sebagai Pengendali Debit Air Berbasis Computer Control
Authors: Cahyono Rokhmad Eko , Muhammad Alil Mafahi  , Avin Kusuma Putra  , Surya Maulidina Rahmawati , Muhammad Bachtyar  , M. Fauzi Soulthon  , Yanuarini Nur S  
Published: February 2024

Sistem Kendali Cerdas atau Smart Control System merupakan penggabungan sistem pengendalian otomatis dengan kecerdasan buatan. Peralatan utama pada sistem kendali cerdas adalah sensor yang berfungsi sebagai alat ukur, control valve atau katup sebagai elemen pengendali dan computer control yang dilengkapi dengan controller. Sensor merupakan alat ukur yang berinteraksi langsung dengan proses, control valve atau katup merupakan actuator atau alat penggerak untuk memperkecil jumlah error dan computer control yang dilengkapi dengan controller berfungsi sebagai pembanding antara set poin dan hasil pengukuran untuk memperkecil error. Implementasi computer control ini dengan menggunakan DCS atau Distributed Control System yaitu sistem pengendalian yang terdistribusi dimana pada setiap plant dibagi menjadi beberapa bagian proses yang dikendalikan oleh suatu controller. Sistem kendali cerdas saat ini juga ditunjang dengan teknologi jaringan dengan kecepatan tinggi untuk transfer data proses. Implementasi sistem kendali cerdas pada DCS adalah sistem jaringan atau networking system dibuat redundant atau jaringan ganda untuk keamanan sistem yaitu jika ada kerusakan jaringan A maka jaringan B masih bisa transfer data sehingga sistem tetap berjalan. Produk dari penelitian ini adalah membuat prototipe sistem kendali cerdas dalam skala kecil dengan melakukan pemasangan beberapa sensor yaitu sensor flowmeter, control valve dan mini DCS tipe AC300. Penelitian ini bertujuan untuk menguji hasil pembuatan prototipe tersebut dengan menguji tingkat keakuratan pembacaan flowmeter sebagai sensor debit air yang juga dilakukan verifikasi menggunakan gelas ukur untuk memastikan hasil yang akurat. Penelitian ini menggunakan metode kuantitatif eksperimental yaitu pembuatan perangkat uji coba sistem kendali dan melakukan percobaan tingkat akurasi sensor. Hasil dari penelitian menunjukkan bahwa rancang bangun prototipe sistem kendali cerdas sudah berfungsi normal dan pengujian akurasi sensor flowmeter sebanyak 30 kali menunjukkan tingkat error yang kecil 0.210963 %.
Kualitas Pelayanan Perpanjangan SIM dalam Aplikasi Digital Korlantas Polri Melalui Fitur Layanan SIM Nasional Presisi (SINAR) di Kepolisian Resor Kota Denpasar
Authors: Nabila Irdha Az-Zahra  , I Putu Dharmanu Yudartha  
Published: February 2024

Digital government transformation in bureaucracy can improve interaction between government and society, simplifying two-way communication so as to increase public efficiency. The Precision National SIM Service (SINAR) is a technological breakthrough in the industrial revolution 4.0 amidst the Covid-19 pandemic. This service is national, so that all SIM Administration Units (SATPAS) in Indonesia can implement this innovation. This research uses a qualitative approach. Using Primary and Secondary data sources. This research used a purposive sampling technique. The Driving License Administration Organizing Unit (SATPAS) plays a role in providing services to the community in terms of driving license services. The indicators contained in the theory of Public Service Quality proposed by Fitzsimmons in Zaenal Mukarom & Muhibidin (2015), namely: (1) physical evidence (tangible) (2) reliability (3) response (responsiveness) (4) guarantee (assurance) and (5) empathy (empathy) Based on the results of research regarding the quality of SIM extension services in the National Police Traffic Corps Digital application through the National Precision SIM (SINAR) service feature at the Denpasar Police Station, it is not fully running optimally, so it requires improvements in terms of service applications .

Abstrak
Transformasi digital government dalam birokrasi dapat meningkatkan interaksi antar pemerintah dan masyarakat, menyederhanakan komunikasi dua arah sehingga agar dapat meningkatkan efisiensi publik. Layanan SIM Nasional Presisi (SINAR) merupakan terobosan teknologi revolusi industry 4.0 ditengah pandemic Covid-19. Layanan ini bersifat nasional, sehingga seluruh Satuan Penyelenggara Administrasi SIM (SATPAS) yang ada di Indonesia dapat menerapkan inovasi iniPenelitian ini menggunakan pendekatan kualititatif. Menggunakan sumber data Primer dan Sekunder. Dalam penelitian ini menggunakan teknik purposive sampling. Satuan Penyelenggara Administrasi Surat Izin Mengemudi (SATPAS) berperan dalam pelaksanaan pemberian pelayanan kepada masyarakat dalam hal pelayanan SIM. Adapun indikator yang terdapat dalam teori Kualitas Pelayanan Publik yang dikemukakan oleh Fitzsimmons dalam Zaenal Mukarom & Muhibidin (2015), yaitu: (1) bukti fisik (tangible) (2) kehandalan (reliability) (3) tanggapan (responsiveness) (4) jaminan (assurance) serta (5) empati (empathy)Berdasarkan dari hasil penelitian terkait kualitas pelayanan perpanjangan SIM dalam aplikasi Digital Korlantas Polri melalui fitur layanan SIM Nasional Presisi (SINAR) di Polresta Denpasar belum sepenuhnya berjalan dengan optimal, sehingga membutuhkan peningkatan dari segi aplikasi layanan.
Kata Kunci: Digital Government, SATPAS, SIM Nasional Presisi, Kualitas Pelayanan
OPTIMALISASI DIGITALISASI DINAS TENAGA KERJA SEBAGAI RECRUITMENT MANAGEMENT DALAM UPAYA MENGATASI PENGANGGURAN
Authors: Anggitaningsih Retna , Muizzat Mohammad Marsha Awwalul , Hidayat Raihan Zaky Maulana , Ardiansyah Normandha Ilham 
Published: February 2024

Dalam pengabdian Masyarakat ini memiliki beberapa tuujuan, pertama, pendampingan dalam pembuatan AK1, kedua, terbuka lebarnya system informasi mengenai lowongan pekerjaan dan ekosistem ketenagakerjaan dengan system digitalisasi dan sehingga lebih terintegrasi. Dilakukan dengan metode PAR (Participatory Action Research), dengan beberapa tahapan yakni, partisipasi, perencanaan, pelaksanaan, serta evaluasi. Sehingga pengabdian ini menghasilkan output dari pengoptimalan system digitalisasi para pencari kerja maupun tenaga kerja yang dimudahkan dalam mencari berbagai informasi, serta bentuk pelatihan kompetensi yang dilakukan berdampak positif juga terhadap Perusahaan yang ingin merekrut karyawan, karena telah mendapat bekal dari program pelatihan yang telah diadakan.
MICROLECTURE/LAB HYBRID CLASS FOR BRIDGING THE GAP BETWEEN THEORIES AND APPLICATIONS IN TEACHING ENGINEERING SUBJECTS
Authors: Muhsan Ali Samer , Albarody Thar M. Badri 
Published: February 2024

There is a paradigm shift taking place in the academy, in which the focus is moving from faculty, their teaching to learners and their learning. Efforts to improve the learner’s learning include a variety of innovative pedagogical approaches (such as first-year design courses, cooperative learning, problem base learning, technology-enhanced education, and distance learning). As engineering educators are leading the way in many of these areas, it is also important to recognize the role of learners in this transformation process. Most engineering lecturers who teach engineering mechanics, especially Statics and Dynamics are used to teach this subject in a theoretical manner. This research suggests a teaching method that could reduce or eliminate the gap between theories and applications in teaching engineering mechanical subjects through achieving a lecture/lab hybrid classroom environment where a portable lab illustration along with micro lecture method is implemented for learners’ engagement (learners-centered learning) and better teaching technique that covers both the visual/practical and the auditory/theory learning styles. In the micro lecture, the lecturer is available for learners at home through videos or internet-based lectures and class time is used to complete assignments by moving the instruction to the homework to the class. Learners are given more ‘one-on-one’ time with their lecturer to work their assignments and the role of the academic staff changes from a lecturer to an instructor. During class time, the portable lab toolkits are used to illustrate the main concepts of the given subject further. The instructor asks the learners to start an experiment by discussing with their peers and make a prediction of the outcome of that experiment. Thus, the learners’ preconceptions relevant to the phenomenon are studied. Secondly, learners perform the experiment and are asked to compare the outcome and prediction. If the outcome and prediction did not match, they would have to reflect on their observations.
Keywords: Portable lab, Flipped classroom, Technology-enhanced education, Problem based learning, Cooperative learning
A THEORETICAL EQUATION PRESENTING SLOPE IN VAN KREVELEN DIAGRAM FOR BIOMASS PYROLYSIS
Authors: Hoai Trinh Thanh , Uemura Yoshimitsu 
Published: February 2024

The van Krevelen diagram has been used widely to describe the change of biomass composition during the thermochemical decomposition. However, the theoretical background on how the composition point of raw material moves towards the point of the product with thermochemical decomposition on the diagram has not been well clarified. This paper attempted to formulate a theoretical equation presenting the slope in van Krevelen diagram based on the removal rates of volatile products during thermochemical decomposition. An equation was established to predict the slope of the movement (or called as the reaction trend line) based on the generated amount of volatiles (H2O, CO2, CO and organics) during thermochemical conversion. This equation was applied to predict some empirical trend lines for torrefaction to confirm the relevamce of this equation, the consistency was excellent. Furthermore, the equation shows its capability in representing other thermal degradation process with a slope variation depending on the raw material.
Keywords: Biomass; thermochemical decomposition; van Krevelen diagram; change of composition
TREATMENT OF PRODUCED WATER FROM CRUDE OIL DESALTER BY COMPOSITE POLYAMIDE RO MEMBRANE
Authors: Borhan Azry , Mat Dait Mohd Nizam 
Published: February 2024

Produced water generated from oil refinery desalting unit requires proper treatment to adhere to stringent regulations before discharging or recycling into the processing area. In this research, desalter’s produced water from PP(M)SB (PETRONAS Penapisan (Melaka) Sdn. Bhd.) was treated via AFC99 tubular thin film composite polyamide RO membrane and were investigated concerning TMP, feed pH and feed-solution concentration. The experimental results indicated that AFC99 membrane removed 100% of TSS and salinity, and more than 95% of COD, salts ions and TDS. This work shows that the RO membrane was feasible and technically viable to be used for optimum salts and contaminants removal from produced water of the desalting unit. Besides, the treated water (permeate) fulfills the watering standards and can be used for recycling and other purposes.
Keywords: produced water, reverse osmosis, polyamide membrane, operating conditions, watering standards
MITIGATION OF METHANE HYDRATE BLOCKAGE IN SUBSEA PIPELINES USING IONIC LIQUID AS HYDRATE INHIBITOR
Authors: Jasamai Mazuin , Idress Mazlin , Arshad Mohd. Zahdan , Taha Mohd Faisal 
Published: February 2024

Gas hydrates one of a major problem in the oil and gas industry. Formation of gas hydrates causes flow assurance issues as it can plug the pipeline. The use of chemical inhibitors; kinetic hydrate inhibitors and thermodynamic hydrate inhibitors is one of the most feasible ways to solve this problem. However, the problem with thermodynamic inhibitors is that it required in a large dosage and cause environmental issues. Thus, this study emphasises on the usage of ionic liquid as an effective kinetic hydrate inhibitor. The ionic liquid is a green chemical that can be fine-tuned explicitly as a hydrate inhibitor. The aim is to study the effectiveness of 1-Ethyl-3-Methylimidazolium Tetrafluoroborate (EMIMBF4), an ionic liquid as a kinetic hydrate inhibitor at various pressure and concentration. Micro Differential Scanning Calorimeter was used to measure the induction time of methane hydrate. The performance of ionic liquid was tested in different concentration and compared to the commercial kinetic hydrate inhibitor, Polyvinylpyrrolidone (PVP). From the experimental work, it was found that EMIMBF4 shows a dynamic inhibition effect as it can delay the induction time of hydrate. EMIMBF4 shows a higher induction time at a low concentration of 0.1wt%. At the pressure of 60 bar, the effectiveness of EMIMBF4 is comparable with PVP. However, PVP shows superior kinetic inhibition effect at the pressure of 40 bar. This study indicates that an effective, green hydrate inhibitor can be developed to counter hydrate formation problems in offshore subsea pipelines in a more cost-effective and environmentally friendly
Keywords: Methane Hydrate; Hydrate Inhibitor; Ionic Liquid; EMIMBF4; Micro DSC; pipeline blockage
EVALUATING THE EFFECT WELL INCLINATION AND FORMATION ANISOTROPY ON CONING RATE IN DEVIATED WELLS
Authors: Adzhar Anis Zuriati , Adebayor Sulaimon Aliyu 
Published: February 2024

In oil reservoirs with bottom water drive, coning is a fundamental problem during oil production. Horizontal and deviated wells are often used to reduce the effect of water coning on total oil production. To avoid the premature breakthrough of water, the production of oil should be maximised through effective monitoring of the critical coning rate, and many researchers have developed models to determine the critical coning rate. However, very few studies have been conducted to evaluate the effect of good inclination and formation anisotropy on the critical coning rate. Therefore, we have incorporated well deviation and formation anisotropy into a water coning model to investigate their effects on the critical coning rate. Previous researches have been limited mainly to the calculation of water critical coning rate in the vertical well. In this study, a combination of radial and spherical flows in deviated wells has been adopted to develop a new model for analysing coning in non-vertical wells. The well inclination considered ranged from 20o to 80o, horizontal permeability (kh ) from 100 mD to 200 mD and the vertical permeability (kv ) was varied from 2 mD to 10 mD. Results showed that highly-deviated wells and formations with a high degree of reservoir heterogeneity (kv/kh) result in high critical coning rate and therefore less susceptible to early water breakthrough. This shows that more allowance to increase the production rate is possible for horizontal wells and anisotropic formations than in vertical and homogeneous reservoirs.
Keywords: Water coning, deviated wells, reservoir heterogeneity, anisotropy permeability, critical coning rate, critical parameters.
MICROSTRUCTURE EVALUATION OF DISSIMILAR LASER BEAM WELDS –MDN 250 AND 15CDV6 STEELS
Authors: Pedapati Srinivasa Rao , M. V. L. Ramesh , Rao V. Venkateswara 
Published: February 2024

A novel dissimilar Laser Beam Weld of MDN 250 and 15CDV6 steels with adequate joint strength was successfully achieved using CO2 laser source. Electron probe microanalysis of the weld, weld microstructure, micro-hardness measurement across the weldment and transverse tensile properties of the weldment were evaluated. The fusion zone of the dissimilar welds exhibits an epitaxial grain growth. In dissimilar metal welds, HAZ (Heat Affected Zone) width is more on 15CDV6 steel side compared to MDN 250 steel side. An asymmetrical hardness profile across the dissimilar weld joint was observed, and HAZ region on 15CDV6 steel exhibited a high hardness. The tensile strength values of the welded specimens were close to that obtained for sheet specimens.
Keywords: Laser beam welding, MDN 250 steel, 15CDV6 steel, Mechanical properties, Microstructure.
CHARACTERIZATION OF THE PLEISTOCENE FLUVIAL SYSTEM IN SEPAT FIELD, MALAY BASIN USING SEISMIC ATTRIBUTES ANALYSIS
Authors: Jamaludin Siti Nur Fathiyah , Rajasansi Tasvir Kaur , Abdul Latiff Abdul Halim 
Published: February 2024

This study is focusing on the characterisation of Pleistocene to present day fluvial system found in Sepat Field in the offshore of Terengganu. It aims to characterise the fluvial system in Sepat Field and correlate the fluvial systems found in Sepat Field with the larger scale fluvial system of the Malay Basin. The methodological approach used for this subsurface study includes geological interpretation of 3-dimensional seismic data and wireline logs interpretation. Frequency spectral decomposition combined with variance and relative acoustic impedance attributes had provided a precise prediction on the dimensions, flow orientation and type of the fluvial systems in this field. This study shows that the fluvial system in this field is dominated by meandering channels that flow from northwest to southeast. Points bars, straight channels, channels boundaries and the evolution of the channels can be imaged and interpreted in this study through frequency spectral decomposition technique. A “hook” shape point bar stands out clearly in the data with depth up to 1.5km and is interpreted to be related to the Malay basin fluvial system. The fluvial system in Sepat Field is interpreted to deposit in the midstream river system and highly associated with the Chao Phraya-Johore River, with sediment sources come through this drainage basin and distributed to the tributaries fluvial channels including those in Sepat Field.
Keywords: seismic attributes, fluvial characterisation, Malay Basin, spectral decomposition, meandering river
FABRICATION OF FLEXIBLE EP-FG COMPOSITE AUTOMOBILE SHELL STRUCTURE USING COMPRESSION MOULDING PROCESS
Authors: Al-Jothery Husam Kareem Mohsin , Megat Yusoff Puteri Sri , Badri Albarody Thar M , K. Balakrishnan Vikneshwaran 
Published: February 2024

Corrugations are believed to enhance the mechanical properties of a shell structure. In this study, the theory of corrugation is applied to enhance the flexibility of epoxy- fibreglass material which is being used widely in the automotive industry. It could fulfil the requirement of using a flexible composite material for automobile shell structure for a more crashworthy design. Two different corrugated profiles were studied in this project which are the damped curve and pyramidal groove profiles. Rubber moulds were fabricated and used for the corrugated epoxy-fibreglass composite preparation. A compression moulding machine was used to form the corrugations on the composite material as it can deliver high pressure and temperature to cure the laminate. In this study, the compression moulding process was carried out under constant parameters: temperature,pressure and holding time. Results obtained from the tensile test of the corrugated epoxy-fibreglass composite sheets were compared with the tensile properties of a flat epoxy-fibreglass composite sheet to determine the effect of corrugations in terms of flexibility. The pyramidal groove corrugation managed to enhance the flexibility of the epoxy-fibre glass composite sheet, however there was a significant decrease in yield load, and no notable changes in tensile strength, yield strength and elongation. On the other hand, the flexibility achieved by the sample with damped curve corrugation is higher than the flat sample but lower than the flexibility possessed by the pyramidal groove sample. Elongation of the damped curve sample prior to fracture is two times higher compared to the elongation achieved by both pyramidal groove and flat samples. In conclusion, the epoxy-fibreglass composite sheet with the damped curve corrugation profile is the best, as it exhibits the desired increase in flexibility with minimal loss in terms of tensile strength, yield load and yield strength.
Keywords: corrugation, thermoset composite, compression moulding, tensile test, damped curve, the pyramidal groove