Assessment of transformer health index using different model

Transformer failures lead to interruption of power supply. Therefore, asset management is important to monitor the efficient functioning of transformers. An important approach in asset management is condition assessment whereby the health status of the transformer is assessed via a health index. There are many methods in determining the final value of a health index. This paper examines how different assessment methods can be used in order to come up with the final health index and output of final health index. The output trend shapes are almost the same for Assessment Model A, B and C except for Assessment Model D. There is no strong correlation between the health index and age of the transformer. Generally, the value of health index of the transformer is reflected by its operation and loading history .This paper hence examines the assessment steps and results that will guide the development of a new approach to determine health index value

Environmental Impacts Evaluation of Sorbitol Production from Glucose

A life cycle assessment (LCA) has been performed on sorbitol production from glucose, which aims to quantify and evaluate the environmental impacts that produced from the process. SuperPro Designer software was employed to perform the process simulation, while SimaPro was used to quantify the LCA.Potency of global warming, acidification, eutrophication, photochemical oxidants creation, abiotic depletion, and ozone layer depletion were evaluated. A gate-to-gate LCA study of sorbitol production showed that global warming potential (GWP) had the largest impact to environment with the value of 3.551 kg CO2 eq/kg sorbitol. Glucose and electricity consumption were known as two major contributors to GWP, and hydrogen reactor was the main consumer of electricity. The use of glucose were responsible for more than 50% of total environmentalimpact in each category. Performing heat integration in sorbitol processing is highly recommended for gate-togate system to reduce energy demand, thus decreasing the environmental impacts. Therefore, this LCA study may be applied to perform a sustainable improvement on sorbitol production process.Keywords: sorbitol; life cycle assessment; global warming potentia

Evaluasi Penggunaan Metode Least Square, Simple Averaging dan Improved Simple Averaging dengan Data Pendapatan Retribusi Pelayanan Pasar di Kabupaten Banyumas

Selama ini, prosedur untuk menentukan nilai-nilai parameter pada persamaan regresi linier sederhana dilakukan dengan metode ordinary least square (OLS). Metode simple averaging (SA) dan improved simple averaging (ISA) dapat dijadikan sebagai metode alternatif untuk menaksir nilai-nilai parameter pada persamaan regresi linier sederhana. Jika nilai-nilai RMSE, MAE dan MAPE pada ketiga metode tidak jauh berbeda, maka ketiga metode dapat digunakan. Tujuan penelitian ini adalah menentukan taksiran persamaan regresi linier sederhana menggunakan ketiga metode, mengevaluasi apakah ketiga metode dapat digunakan, dan meramalkan hasil regresi untuk empat periode berikutnya. Penelitian ini menggunakan data pendapatan retribusi pasar di Kabupaten Banyumas dari Januari 2021 sampai Desember 2022. Penelitian ini menghasilkan nilai-nilai RMSE, MAE dan MAPE yang hampir sama untuk ketiga metode. Evaluasi dengan MAPE menghasilkan angka kurang dari 20% untuk seluruh metode. Ini berarti bahwa ketiga persamaan regresi dapat digunakan untuk meramalkan besar pendapatan retribusi pasar di Kabupaten Banyumas untuk bulan Januari sampai April 202

STUDENTS' PERCEPTIONS AND MOTIVATION ON THE IMPLEMENTATION OF MBKM AT ENGLISH DEPARTMENT UNIVERSITAS BANDAR LAMPUNG

Merdeka Belajar-Kampus Merdeka (MBKM), or in English it is translated as Emancipated Learning - Independent Campus, is a new regulation intended to promote students' independence. in developing their interests and motivation in learning. As this MBKM Policy is a new educational policy in Indonesia, research on its implementation and its impact is still much needed. This study aims to: 1) explore English students’ perceptions of the implementation of Merdeka Belajar-Kampus Merdeka Program at the English Department of Universitas Bandar Lampung, 2) explore English students’ intrinsic and extrinsic motivation to participate in Merdeka Belajar-Kampus Merdeka Program at English Department of Universitas Bandar Lampung. The sample of this study is English students at Universitas Bandar Lampung, as many as 25 students participated in the MBKM program. Data was collected using questionnaires and interviews. The results indicated intrinsic and extrinsic factors that influence students to participate in the MBKM program which include: 1) Intrinsic factors (challenging, curiosity, developing self, learning new things, increasing soft and hard skills, being an intelligent student and exploring the ability and knowledge), 2) Extrinsic factors (getting a good job, getting the reward, gaining appreciation/praise from the environment, and get money from the government). Students at Universitas Bandar Lampung believe that MBKM has been successfully implemented and that it has been well worth it. With the MBKM Program, students can receive assistance in the learning process, including the best experience, personal growth, improved English proficiency, optimal learning, and considerable advancement. The MBKM Program's ability to motivate students can have a good effect and aid in their future job growth, self-quality development, and academic success. &nbsp

Intelligent Parking System

The Intelligent Parking System is a system designed to prevent problems usually associated with car parks. Proper parking system in the urban areas has become becomes part of the successful business criteria. There are more shoppers get attracted to organized shopping complexes where ample, secure and effectively managed parking is provided. This project has focused on developing a system that will effectively manage the parking facilities at shopping complexes. This system aims in optimizing the use of limited parking spaces and at the same time increase customer satisfaction. The current system in place is manual and is biased towards the provision of security to the parked car. The proposed parking system takes into account that the drivers prefer to park at designated places. The system will be used to guide the driver to the available parking space. The image processing in other hand will detect and capture the car number plate and display in the LCD display together with that particular car designated parking space. Ultrasonic sensor system is being used to detect available parking space

Faktor-faktor yang memengaruhi indeks pembangunan manusia di Provinsi Sumatera Utara tahun 2014-2017

Tahun 2017 indeks pembangunan manusia mengalami peningkatan, sedangkan pendapatan daerah dan pengeluaran pemerintah sektor kesehatan mengalami penurunan. Fenomena ini tidak sesuai dengan teori. Rumusan masalah dalam penelitian ini adalah apakah terdapat pengaruh pendapatan daerah, pengeluaran pemerintah sektor kesehatan dan kemiskinan secara parsial dan simultan terhadap indeks pembangunan manusia di Provinsi Sumatera Utara tahun 2014-2017. Penelitian ini dilakukan dengan tujuan untuk mengetahui pengaruh pendapatan daerah, pengeluaran pemerintah sektor kesehatan dan kemiskinan secara parsial dan simultan terhadap indeks pembangunan manusia di Provinsi Sumatera Utara tahun 2014-2017. Penelitian ini berguna bagi peneliti sendiri, Pemerintah Sumatera Utara, IAIN Padangsidimpuan dan bagi peneliti selanjutnya. Pembahasan penelitian ini berkaitan dengan bidang ilmu ekonomi. Sehubungan dengan itu pendekatan yang dilakukan adalah teori-teori yang berkaitan tentang ekonomi pembangunan manusia, yang membahas tentang faktor-faktor yang memengaruhi pembangunan manusia. Jenis penelitian yang digunakan yaitu penelitian kuantitatif. Data yang diolah dalam penelitian ini adalah data sekunder yang diperoleh melalui data yang dipublikasi oleh Badan Pusat Statistik. Sampel penelitian yang diambil adalah data dari Kabupaten/kota di Provinsi Sumatera Utara dari tahun 2015-2017, dengan jumlah 96 sampel. Adapun teknik pengambilan sampel dengan metode Purposive Sampling. Data diolah dengan instrumen pengolahan data menggunakan software Eviews versi 9. Hasil penelitian ini membuktikan secara parsial pendapatan daerah berpengaruh terhadap indeks pembangunan manusia di Provinsi Sumatera Utara tahun 2014-2017. Pengeluaran pemerintah sektor kesehatan berpengaruh terhadap indeks pembangunan manusia di Provinsi Sumatera Utara tahun 2014-2017. Kemiskinan berpengaruh terhadap indeks pembangunan manusia di Provinsi Sumatera Utara tahun 2014-2017. Sedangkan secara simultan pendapatan daerah, pengeluaran pemerintah sektor kesehatan dan kemiskinan berpengaruh terhadap indeks pembangunan manusia di Provinsi Sumatera Utara tahun 2014-2017

Performance Evaluation of Commercial Dengue Diagnostic Tests for Early Detection of Dengue in Clinical Samples

The shattering rise in dengue virus infections globally has created a need for an accurate and validated rapid diagnostic test for this virus. Rapid diagnostic test (RDT) and reverse transcription-polymerase chain reaction (RT-PCR) diagnostic detection are useful tools for diagnosis of early dengue infection. We prospectively evaluated the diagnostic performance of nonstructural 1 (NS1) RDT and real-time RT-PCR diagnostic kits in 86 patient serum samples. Thirty-six samples were positive for dengue NS1 antigen while the remaining 50 were negative when tested with enzyme-linked immunosorbent assay (ELISA). Commercially available RDTs for NS1 detection, RTK ProDetect™, and SD Bioline showed high sensitivity of 94% and 89%, respectively, compared with ELISA. GenoAmp® Trioplex Real-Time RT-PCR and RealStar® Dengue RT-PCR tests presented a comparable kappa agreement with 0.722. The result obtained from GenoAmp® Real-Time RT-PCR Dengue test showed that 14 samples harbored dengue virus type 1 (DENV-1), 8 samples harbored DENV-2, 2 samples harbored DENV-3, and 1 sample harbored DENV-4. 1 sample had a double infection with DENV-1 and DENV-2. The NS1 RDTs and real-time RT-PCR tests were found to be a useful diagnostic for early and rapid diagnosis of acute dengue and an excellent surveillance tool in our battle against dengue

Analisis jejak karbon pada aktivitas permukiman di Kecamatan Waru Kabupaten Sidoarjo

Permasalahan udara banyak terjadi di daerah-daerah padat penduduk seperti halnya di Kabupaten Sidoarjo. Kecamatan Waru merupakan salah satu Kecamatan di Kabupaten Sidoarjo yang menghasilkan emisi karbon dari aktivitas permukiman. Emisi karbon akan meningkat seiring dengan bertambahnya jumlah penduduk dan aktivitas permukiman yang dilakukan. Penelitian ini bertujuan untuk mengetahui jumlah emisi karbon yang dihasilkan dari aktivitas permukiman di Kecamatan Waru. Dalam penelitian ini emisi yang dihitung berfokus pada 4 (empat) sektor yaitu sektor energi, sektor tranpsortasi, sektor persampahan dan sektor peternakan. Pendekatan yang digunakan dalam penelitian ini adalah kuantitatif dengan cara melakukan survei ke lokasi penelitian dan didukung oleh kuisioner. Metode perhitungan emisi karbon ini mengacu pada Intergovernmental Panel on Climate Change (IPCC) Guidelines (2006). Pada penelitian ini didapatkan total emisi karbon di Kecamatan Waru Kabupaten Sidoarjo sebesar 302.790,57 ton CO₂-eq/tahun. Sedangkan hasil pemetaan didapatkan kelurahan dengan emisi terbesar yaitu Kelurahan Tropodo dengan emisi sebesar 51.488,15 ton CO₂-eq/tahun dan dalam peta jejak karbon ditandai dengan warna mera

Leadership Dynamics and Organizational Advancement in Non-Formal Education: A Case Study of PKBM Karya Manunggal

Purpose – This study examines leadership practices at PKBM Karya Manunggal to understand how leadership influences the success of non-formal education institutions. Design/methods – A qualitative case study approach was used, employing in-depth semi-structured interviews with the head of the institution. Data were analyzed thematically, and member checking was applied to ensure data validity and reliability. Findings – Inclusive and participatory leadership practices contributed to operational development, improved facilities, increased student enrollment to 78, and graduate success, despite challenges such as low student engagement, accreditation difficulties, and limited tutor involvement. Research implications/limitations – The focus on a single institution limits the generalizability of the results, suggesting the need for broader comparative studies across non-formal education centers. Practical implications – The findings highlight the importance of professional development, technological integration, curriculum enhancement, community engagement, and alumni network development to strengthen institutional sustainability. Originality/value – This study offers original insights into leadership strategies in Indonesian non-formal education and provides actionable recommendations for strengthening educational equity and institutional resilience