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Menampilkan 31–40 dari 1485 artikel
Fractional Corner Charges in Ionic Crystals: A Case Study of Sodium Chloride Using the DV-Xα Molecular Orbital Method
Recent theoretical predictions have revealed that even simple ionic crystals such as sodium chloride (NaCl) can exhibit fractional corner charges due to their topological characteristics. In this study, we employ the DV-Xα molecular orbital method to analyze the electronic structure of NaCl clusters in 1D, 2D, and 3D configurations. Cluster models were constructed with varying atomic numbers, and their highest occupied molecular orbitals (HOMOs), net atomic charges, and electrostatic potential m...
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Numerical Simulation of Mixed Convection Heat Transfer in a Vehicle Cabin with Variable Aspect Ratios Using CFD
The study of mixed convection heat transfer within rectangular cavities is a vital topic in engineering applications such as ventilation systems and heat exchangers. In this research, ANSYS Fluent software was used to simulate heat transfer within a rectangular cavity. The left wall was heated, and the right wall was cooled; the aspect ratio (AR) was varied (0.5-2), and an inlet was installed at the top and an outlet at the bottom, while the other walls were insulated. The Reynolds number (Re) v...
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Tantangan Desentralisasi Fiskal Era UU HKPD: Tinjauan Kepustakaan atas Implikasi Resistensi Wajib Pajak Kendaraan Bermotor terhadap Kapasitas Keuangan Kota Semarang
Zidni Muntaha Ridho
; Nayzilla Mega Rahmadhani
; Aisyah Nur Fadila
; Kharisma Ilmi Alawy Wahbiyah
; Dewi Arimbi Burhandani Piliang
; Beryl Shira Filiandri
; Risma Tria Syahrani
; Melda Fadiyah Hidayat
; Revienda Anita Fitrie
DHARMA EKONOMI
(2026)
The implementation of regional autonomy and fiscal decentralization aims to enhance local governments' financial independence. However, fiscal imbalances between the central and regional governments led to the enactment of Law Number 1 of 2022 (UU HKPD), designed to strengthen regional fiscal capacity. This law introduces a piggyback tax system through a surcharge on the Motor Vehicle Tax. This study analyzes the dynamics of the piggyback tax system in Semarang City, focusing on the implications...
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Microwave-Pyrolysed Rice Husk-Derived Activated Carbon as a Sustainable Anode Material for Lithium-Ion Half-Cell Batteries
Surib , Nur Atiqah
; Mohd Abdah, Muhammad Amirul Aizat
; Farhana Syakirah Ismail
; Wong, Weng Pin
; Ab Latif, Farah Ezzah
; Mustafa, Muhammad Norhaffis
; Rashmi Walvekar
; Mohammad Khalid
Agricultural waste biomass is explored as a sustainable precursor for activated carbon. In this study, rice husk-derived activated carbon (RHAC) was synthesized via microwave-assisted pyrolysis and KOH activation at 600, 700, and 800 °C. The KOH activation enhanced the thermal stability of the samples, with RHAC_700 exhibiting a spongy, interconnected structure and a surface area of 390.33 m² g⁻¹. When evaluated as a half-cell anode materials for lithium-ion batteries, RHAC_700 delivered an init...
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MORPHOLOGICAL CHARACTERIZATION OF BRAIN TUMOR TISSUE IN MRI IMAGES USING CNN AND TRANSFER LEARNING
Hilmi, Dafa Fadhilah
; Wibawa, Aji Prasetya
; Agustavada, Ardha Ardhana Putra
; Sholum, Abdullah
; Dwiyanto, Felix Andika
This study evaluates the role of computational pattern recognition as an observational method for analyzing morphological characteristics of brain tumor tissue in MRI data. A total of 6,056 labeled MRI images, including glioma, meningioma, and pituitary tumor cases, were examined. The images were standardized to maintain uniform structural representation and processed using three convolutional-based architectures: a baseline CNN, MobileNetV2, and EfficientNet-B0. Model performance was assessed u...
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Komunikasi CSR sebagai Upaya Membangun Kepedulian Lingkungan: Studi pada Perusahaan PT. Minyak dan Gas Bumi (Perseroda) BUMD Bekasi
Jurnal Audience: Jurnal Ilmu Komunikasi
Vol 9
, No 1
(2026)
Penelitian ini dilatarbelakangi oleh masih rendahnya kepedulian masyarakat terhadap lingkungan di wilayah operasional perusahaan, meskipun program Corporate Social Responsibility (CSR) telah dijalankan. Oleh karena itu, penelitian ini bertujuan untuk menganalisis strategi komunikasi CSR yang dilakukan oleh Humas PT. Minyak dan Gas Bumi (Perseroda) BUMD Bekasi dalam membangun kepedulian lingkungan masyarakat di Kelurahan Jatiraden. Penelitian ini menggunakan pendekatan kualitatif dengan metode de...
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Optimizing the Accuracy of Financial Reporting of Retail MSMEs Through the Development of a Web-Based Inventory Accounting Information System: A Case Study of Toserba Indah Kendal
Pratiwi, Hana
; Aqham, Ahmad Ashifuddin
; Sudirman, Bagus
; Munifah, Munifah
; Pratiwi, Hana
; Aqham, Ahmad Ashifuddin
; Sudirman, Bagus
; Munifah, Munifah
JUISI : Jurnal Ilmiah Sistem Informasi
Vol 4
, No 2
(2026)
Perkembangan teknologi informasi telah mendorong transformasi digital pada berbagai sektor usaha, termasuk usaha mikro dan menengah. Pengelolaan persediaan barang yang tidak didukung sistem informasi yang baik berpotensi menimbulkan kesalahan pencatatan, keterlambatan pelaporan, serta ketidaksesuaian data yang berdampak pada pengambilan keputusan manajerial. Toserba Indah Kendal sebagai usaha dagang masih menerapkan pencatatan persediaan dan laporan keuangan secara manual menggunakan buku tulis,...
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Pengaruh Liquidity, Leverage, Profitability, Sales Growth, dan Firm Size Terhadap Cash Holding
This research analyzed the influence of liquidity, leverage, profitability, sales growth, and firm size on cash holdings. The research is quantitative, using secondary data from annual financial reports of primary consumer industries listed on the Indonesia Stock Exchange from 2022 to 2024. Liquidity is measured by the Current Ratio, which is calculated as current assets divided by current liabilities. Leverage, proxied by the Debt-to-Equity Ratio, is measured by total liabilities divided by tot...
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Attention-Augmented GRU for Stock Forecasting: A Trade-Off Between Directional Accuracy and Price Prediction Error
R. Daniel Hartanto
; Guruh Fajar Shidik
; Farrikh Alzami
; Ahmad Zainul Fanani
; Aris Marjuni
; Abdul Syukur
Journal of Computing Theories and Applications
Vol 3
, No 4
(2026)
Attention mechanisms have been widely incorporated into recurrent neural network architectures for financial time series forecasting, with most prior work reporting improvements in price-level error metrics. This study revisits that claim through a controlled empirical comparison of four deep learning architectures on nearly two decades of Telkom Indonesia (TLKM) closing price data from the Indonesia Stock Exchange (IDX). The models evaluated are a three-layer Gated Recurrent Unit (GRU) baseline...
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Behavioral Malware Detection via API Call Sequences: A Comparative Study of LSTM and Transformer Architectures Using NLP-Inspired Representations
Journal of Computing Theories and Applications
Vol 3
, No 4
(2026)
The increasing sophistication of malware has rendered traditional signature-based detection methods insufficient, necessitating behavior-driven and adaptive analytical frameworks. This study presents a sequential deep learning framework that models system-level API call sequences as structured linguistic representations for behavioral malware detection. Unlike conventional comparative studies, this work systematically evaluates recurrent and attention-based architectures under controlled experim...
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