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Utilizing Theoretical And Experimental Gaseous Co2 Filling Behavior In Gas Hydrate Formation Parameters, Mohammed G.H. Haidar, Iqbal Ahmed Moujdin

Journal of King Abdulaziz University: Engineering Sciences

Gas hydrates are increasingly becoming a viable method due to their potential efficiency and minimal energy demands. The capacity to manipulate and regulate the development of these hydrates is essential for enhancing their application in practical contexts. The study employed a VINCI autoclave apparatus to experimentally investigate the CO₂ filling rate necessary to attain hydration pressure with minimal temperature increase. MATLAB is used to derive theoretical gas filling equations that control the filling behavior and compare them with the results of our tests. A clear proportional link exists between filling flow rates and temperature increment within the reactor. The …

Synthesis And Characteristics Of Cerium Vanadate-Strontium Oxide: Exploring Novel Composite Material, Sunnia Shafiq, Adeeba Noshahi, Muhammad Shahid Shafique, Bushra Kanwal, Shavezah Nazeer, Zainab Javed, Rabia Zahoor

Journal of King Abdulaziz University: Engineering Sciences

The study describes the synthesis and characterization of Cerium Vanadate-Strontium Oxide (CeVO₄-SrO) nanocomposite. It emphasizes the importance of nanoparticles in various scientific applications, especially energy storage. The study used a hydrothermal approach with particular precursor components to synthesize the nanocomposite. The resultant materials are examined using X-ray diffraction (XRD) and scanning electron microscopy (SEM) to evaluate their crystallite sizes and structural characteristics. The study found that SrO has an irregular rough shape, CeVO₄ appears spherical, and the composites have a nanorod-like structure. UV-visible spectroscopy provides discrete absorbance peaks, which confirm the material's optical characteristics. The conclusion highlights …

Efficacy Of Azadirachta Indica Extract And The Green Synthesized Silver Nanoparticles Against The Aspergillus Spp. Causing Pomegranate Fruit Rot In Taif Governorate, Saudi Arabia, Abeer S. Alqurashi

Journal of King Abdulaziz University: Meteorology, Environment and Arid Land Agriculture

Despite being prone to fungal diseases, particularly those caused by Aspergillus species, the pomegranate fruit is greatly esteemed for its nutritional value and health benefits. Fungal infections can inflict significant damage and may produce mycotoxins, which pose serious risks to human health. Species of Aspergillus are responsible for causing diseases that affect pomegranate fruit in Taif, Saudi Arabia. This study aims to assess the efficacy of neem extract and its silver nanoparticles as antifungal agents against these infections. Upon reviewing their morphological and genetic traits, the predominant species identified were Aspergillus niger, Aspergillus versicolor and Aspergillus tubingensis. Laboratory-based …

Comparative Analysis Of The Efficiency Of Reverse Osmosis And Hydroxyapatite For Fluoride Removal In Water: A Case Of Auwsa, Innocent J. Macha

Tanzania Journal of Engineering and Technology (TJET)

Water treatment technology selection depends on contaminant type and budget. Fluoride removal from water is particularly challenging, requiring non-conventional treatment technologies (Radwan, 2023). Several regions in Tanzania, including Arusha City, are affected by fluoride contamination. With a population of 617,631 (Census, 2022), only 117,763 people currently have access to clean water supplied by AUWSA. This study aimed to compare the efficiency of Reverse Osmosis (RO) and Hydroxyapatite (HAP) in fluoride removal as a strategy to address water quality and supply challenges. Experiments were conducted using 6 m³ of raw water with fluoride concentrations ranging from 5.1 mg/L to 6.83 mg/L, …

The Future Is Inclusive, Victoria Mcclendon

Theses and Dissertations

Victoria McClendon THE FUTURE IS INCLUSIVE 2024-2025 Stephanie Lezotte, Ph.D. Master of Arts in Higher Education This research explores the role of Diversity, Equity, and Inclusion (DEI) programs in higher education, specifically focusing on the impact of inclusion through Rowan University’s Unified Sports program. DEI programs are designed to support historically underrepresented groups, including students of color, LGBTQ+ students, students with disabilities, and other marginalized communities. This study examines the importance of DEI in fostering inclusive educational environments and investigates the consequences of removing such programs. A qualitative case study approach is employed, involving group interviews with students and faculty …

Enhancing Quality Assurance In Construction Implementation: The Role Of Bim As A Comprehensive Documentation Tool, Ahmed M. Hani

Journal of King Abdulaziz University: Engineering Sciences

This study investigates the potential of Building Information Modelling (BIM) as a tool for enhancing the quality assurance of construction projects during the implementation phase. Given the increasing complexity of construction projects and the growing amount of information required, BIM has emerged as an indispensable tool for the Architecture, Engineering, and Construction (AEC) industry. Nevertheless, many construction projects encounter challenges and delays due to incomplete information and inadequate documentation during the construction phase, thereby compromising the quality of the final product. To address these issues, the study conducts a meticulous analysis of recently published papers, online resources, and practical experiences …

Pengaruh Emotional Intelligence, Locus Of Control, Risk Aversion, Dan Financial Literacy Terhadap Risky Investment Intention Di Indonesia, Sekar Savira Ramadhani, Maria Ulpah, Wardatul Adawiyah

Jurnal Manajemen dan Usahawan Indonesia

This study investigates how individual factors—namely emotional intelligence, external locus of control, risk aversion, and financial literacy—affect the intention to invest in risky financial instruments in Indonesia. The research explores both the direct and indirect effects of these factors on risky investment intentions. Data were collected from 507 respondents through an online questionnaire. The findings indicate that emotional intelligence, external locus of control, and financial literacy positively influence the intention to invest in risky assets, while risk aversion has a negative effect. Additionally, the analysis of indirect effects shows that financial literacy moderates the relationship between emotional intelligence and risk …

When Words Fail: Why Ai-Driven Context Beats Word Error Rate For Safety-Critical Air Traffic Control, Muhammad Maaz

Theses and Dissertations

Accurate speech-to-text transcription is critical for Air Traffic Control (ATC) to en- sure safety and operational efficiency. However, existing Automatic Speech Recognition (ASR) systems struggle with domain-specific phraseology, high noise levels, and real-time constraints. This work explores domain adaptation strategies of OpenAI’s Whisper ASR model, applying Transfer Learning and Low-Rank Adaptation (LoRA) on ATC benchmark and a Federal Aviation Administration (FAA) corpus. Experimental results show that fine- tuning significantly reduces Word Error Rate (WER) from 55.2% to 6.8%, yet WER alone fails to capture safety-critical transcription errors. To address WER’s limitations, we introduce the Contextual Error Rate (CER), a novel …

"The Growing Burden: Overweight And Obesity Prevalence And Risk Factors Among Medical College Students In Mysuru: A Cross-Sectional Study", Akansha ., Nayanabai Shabadi, Anchu R Nath, Ravipati Manogna

Digital Journal of Clinical Medicine

ABSTRACT:

Background:

The transition from adolescence to adulthood is often accompanied by significant lifestyle changes, including changes in dietary habits, physical activity levels, and stress, which can contribute to unhealthy weight gain. In India, the prevalence of overweight and obesity among youth has shown an upward trend, raising concerns about early onset of non-communicable diseases. This study aims to assess the prevalence of overweight and obesity among degree college students in Mysuru and to identify the associated socio-demographic and lifestyle factors contributing to these conditions.

Methodology:

A cross-sectional study was conducted over three months, from January to March 2025, among …

Bakit Kailangang Simulan ‘Agad’?, Rowell Madula, Dolores R. Taylan

Malay Journal

Nilalaman nito ang pambungad na mensahe ng editor para sa isyu.

Ang Transdisiplinaryong Oryentasyon At Filipinolohiya Bilang Metodolohiya Ng Araling Filipino, Rhoderick V. Nuncio

Malay Journal

Layunin ng papel na ito na ilatag ang pundasyon, mga teoretikal na konsiderasyon at acakademikong direksiyon ng iba’t ibang oryentasyon ng Araling Filipino (AF) bilang inter/multidisiplinaryo at transdisiplinaryong larangan. Binubuo ito ng tatlong bahagi—una, sinipat ang Araling Filipino bilang larangang may paksa, dalumat, metodolohiya at adhika; ikalawa, tinalakay nang masinsinan ang depinisyon at pagkakaiba ng tatlong oryentasyon; ikatlo’t huli, inilatag ang Filipinolohiya bilang mungkahing katawagan sa metodolohiya ng Araling Filipino. Inilagay ng mananaliksik/manunulat ang kaniyang tinig at karanasan sa ilang pag-aaral na ginawa at ginagawa tulad ng sanghiyang sa penomena ng Internet, pantawang pananaw bilang tawa at tuligsa, kritika bilang …

Rehistro Sa Mga Klaseng Online Ng Filipino Registers In Online Filipino Classes, Allayssa Mae U. Luis, Jun Yang Badie

Malay Journal

Nilalayon ng pag-aaral na ito na sipatin at suriin ang umiiral na rehistro na ginagamit sa klaseng online ng Filipino. Layunin ng pag-aaral na mabatid kung ano-ano ang rehistro sa klaseng online ng Filipino, maibigay ang kontekstuwal at konseptuwal na kahulugan ng mga rehistro, mabatid ang mga bahagi ng panalita ng mga rehistro, at malaman kung paano ginagamit sa klase ang mga rehistro sa klaseng online ng Filipino. Ang disenyo ng pag-aaral ay kuwalitatibong palarawang pananaliksik na may layuning mailarawan ang mga rehistro sa klaseng online ng Filipino. Nagsagawa ang mga mananaliksik ng pagsipat sa sampung nakarekord na lektura ng …

Mga Kontribyutor Sa Isyu At Panawagan Sa Kontribusyon, Malay Journal

Malay Journal

Ipinakikilala rito ang mga awtor ng mga artikulong nakapaloob sa isyu. Inilalahad din ang mga mahahalagang detalye para sa mga interesadong magsumite ng pananaliksik sa journal.

Perempuan: Keterwakilan Dalam Partai Politik Dan Badan Legislatif, Inna Insan, Fide Gracia Simatupang, Sharon Golda Ylleanor

Jurnal Konstitusi & Demokrasi

Partisipasi perempuan dalam politik merupakan salah satu indikator penting dalam menilai kualitas demokrasi suatu negara. Representasi yang setara antara laki-laki dan perempuan, khususnya dalam partai politik dan badan legislatif, tidak hanya menjadi wujud dari keadilan gender, tetapi juga menjadi sarana untuk memperkaya pengambilan kebijakan yang dapat dinilai inklusif dan responsif terhadap kebutuhan seluruh warga negara. Namun dalam kenyataannya, keterlibatan perempuan dalam ranah ini masih diwarnai dengan berbagai tantangan struktural, budaya, dan historis.

Jepang, Indonesia, dan Taiwan merupakan tiga negara di Asia Timur dan Tenggara dengan latar belakang sejarah, budaya, dan sistem politik yang berbeda, namun pada ketiganya terdapat persamaan dinamika …

Life Beneath The Tides: Seagrass Meadows In Surigao Del Sur, Philippines, Giselle B. Ramos, Roxan E. Caray

Journal of King Abdulaziz University: Marine Science

Seagrasses are a valuable component of global blue carbon ecosystems yet are also endangered due to natural and man-made pressures. This study assessed the seagrass resources regarding species community structure and diversity using a transect-quadrat design along the intertidal coastlines of selected towns of Surigao del Sur. Of the 19 recorded species in the Philippines, seven common species were observed: Cymodocea rotundata, Enhalus acoroides, Halodule pinifolia, Halodule uninervis, Thalassia hemprichii, Syringodium isoetifolium, and Halophila ovalis. Across study sites, the most evident species are T. hemprichii, C. rotundata, and S. isoetifolium; the existence …

Steric Sea Level Variability Over The Red Sea, Turki Alraddadi

Journal of King Abdulaziz University: Marine Science

The current paper analyzes the steric sea level (SSL) variability over the Red Sea (RS) and linked it with climate modes namely, North Atlantic Oscillation (NAO) and East Atlantic West Russian (EAWR) patterns using a reanalysis dataset. Long-term (1993--2015) profile temperature and salinity data acquired from Simple Ocean Data Assimilation (SODA) was used to compute the SSL. The results show that the SSL is out of phase comparing to the total sea level, which may reduce fluctuations of water level within the sea. Furthermore, it accounts for only 10% of the total sea level variations. The first and second Empirical …

Machine Learning Applications For Berth Allocation Optimization In Major Red Sea Ports: A Multi-Port Analysis, Mohammed H. Alshareef

Journal of King Abdulaziz University: Marine Science

Efficient berth allocation remains a critical challenge in Red Sea port operations, particularly given the diverse operational capabilities across the region's ports. The research utilized historical operational data from 147,892 berth allocation instances across these ports spanning 2019--2023. A deep learning model was developed using four dense layers with ReLU activation functions, incorporating vessel characteristics, weather patterns, and operational constraints. The model's performance was validated through comparison with traditional allocation methods using real-time port operation data. Port selection criteria included geographical distribution along the Red Sea, varying levels of technological adoption, and willingness to share operational data for research purposes. …

Optimal Placement Of Distributed Generation Units In Power Distribution Networks Using Particle Swarm Optimization, Owdean M. Suwi

Tanzania Journal of Engineering and Technology (TJET)

Power losses and voltage drops in distribution networks are critical issues in power system operation, reducing efficiency, reliability, and overall quality of the power supply to customers. Additionally, the rising electricity demand, deregulation of energy markets, and congestion in transmission networks have further contributed to the declining performance of the grid. To address these challenges, integrating distributed generation units (DGUs) into electric distribution systems has gained significant attention. Furthermore, the integration of DGUs into conventional fossil fuel-based power plants is becoming necessary to reduce greenhouse gas emissions. However, proper placement and sizing of DGUs are crucial for achieving optimal benefits. …

The Royal Academy Of Engineering, Uk And The Enriching Of Engineering Education Training And Practice Programme In Sub-Saharan Africa, Bavo B. Nyichomba

Tanzania Journal of Engineering and Technology (TJET)

This paper elucidates initiatives taken by the Royal Academy of Engineering, UK, to overcome barriers in education and training in Sub-Sahara African higher learning engineering institutions. The said barriers include mismatches of curriculum, ineffectual teaching and learning and little exposure of academic staff to engineering practice. In order to overcome such barriers, the Royal Academy of Engineering established the two programmes in the region. The first one, Enriching Engineering Education Programme (EEEP) from 2014/15 to 2015/16 where the University of Dar es Salaam coordinated this programme as a hub for East African universities namely; Makerere University (Uganda), Moi University (Kenya), …

Performance Dynamics Of Activated Carbon-Methanol Pair In Adsorption Refrigeration Systems, Ibrahim J. Mwasubila

Tanzania Journal of Engineering and Technology (TJET)

Adsorption refrigeration systems have shown potential for addressing the adverse effects of traditional compressor-based refrigeration systems. Adsorption refrigeration systems that utilise activated carbon and methanol demonstrate good performance, especially at temperatures below 0 °C. This combination significantly improves the cooling performance of the system, making it a dependable option for freezing applications. Despite having the potential to meet cooling demand and be eco-friendly, the adsorption refrigeration system has several drawbacks that hinder its commercialisation. This paper discusses the properties of the activated carbon methanol pair in the adsorption refrigeration system. The focus is on the desorption temperature, thermal stress, repeatability …

Analysis Of The Development Potential And Strategy Of The Kauman Batik Village In Surakarta Using Quantitative Strategic Planning Matrix (Qspm) Approach, Fauzi Syani Prananto, Edi Kurniawan, Satya Budi Nugraha

Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktek dalam Bidang Pendidikan dan Ilmu Geografi

The increasing development of other leading destinations in Surakarta City, there are many challenges that must be faced by Kauman Surakarta Batik Village. The activation of tourism potential that has not been fully managed optimally shows that the existence of the village is starting to be threatened. The purpose of this research is to identify tourism potential that needs to be developed and to analyze the development strategy of Kampung Batik Kauman Surakarta tourist attraction by looking at the potential it has. The method used in this research is quantitative with data collection techniques, namely observation, interviews and questionnaires. Data …

Flash Flood Modelling In The Brantas Hulu Sub-Watershed, Batu City, Indonesia, Listyo Yudha Irawan, Vischawafiq Azizah, Siti Nur Farihah, Luisa Fernanda Medina, Puspita Indra Wardhani, Nanda Regita Cahyaning Putri, Mellinia Regina Heni Prastiwi, Mohammad Rendra Magandhi Arizal

Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktek dalam Bidang Pendidikan dan Ilmu Geografi

Flash floods are especially hazardous hydrological phenomena, noted for their abrupt occurrence and capacity to inflict severe damage on infrastructure, farmlands, and residential zones, often leading to substantial socio-economic upheaval and fatalities. A flash flood struck the Upper Brantas watershed on November 4, 2021, at 14:00, precipitated by intense rainfall over a short duration, leading to significant hydrological impacts. The event manifested at six critical points within Batu City, with Sambong Hamlet and Beru Hamlet experiencing severe inundation. The flash floods disrupted residential areas and severely affected agricultural lands through debris flows. Preliminary assessments indicated that approximately 35 houses were …

Lifecycle Of Greater Wax Moth Galleria Mellonella (Lepidoptera: Pyralidae) And Its Control By Natural Products, Tahani A. Alzahrani, Hanan S. Alyahya, Shatha I. Alqurashi, Jazem A. Mahyoub

Journal of King Abdulaziz University: Meteorology, Environment and Arid Land Agriculture

The great wax moth (Galleria mellonella) is a major pest that affects honeybee colonies, causing serious damage to the honeycomb and disrupting beekeeping operations. This paper aims to review the life cycle of this insect and the natural control strategies used to manage its populations. This paper examines the different stages of growth of the great wax moth, including the stages of eggs, larva, pupae, and adults. The life cycle of this insect depends largely on environmental conditions, especially temperature, humidity and food quality, in addition, this paper focuses on natural control strategies, such as the use of plant extracts …

Banana Postharvest Quality: Current Technologies And Future Perspectives, Mohamed Ibrahim Elsayed

Journal of King Abdulaziz University: Meteorology, Environment and Arid Land Agriculture

Banana (Musa spp.) is a main economic crop. Several pre and postharvest factors are controlling fruit quality. Oweing to its climacteric nature numerous biological and metabolic changes occur rapidly within fruits and accelerate their ripening and senescence. These changes cause considerable postharvest losses that reduce supply chain efficiency. There is always a pressing and persistent necessity to minimize these losses and develop the current postharvest technologies. Nanoparticle technology has shown promising potential in fruit postharvest including banana. Further research is needed to provide more comprehensive knowledge of these promising materials.

Synoptic Assessment Of Climate Change And Its Impact On Rainfall Design At The Holy Site Of Arafat, Makkah Al-Mukarramah, Saudi Arabia, Agusta R. P., Ewea H. A., Hasanean H.

Journal of King Abdulaziz University: Meteorology, Environment and Arid Land Agriculture

Synoptic climatology offers a powerful lens for understanding atmospheric mechanisms that govern regional precipitation trends. In arid regions like Makkah Al-Mukarramah, subtle shifts in large-scale climate drivers can significantly alter rainfall behavior. This study evaluates the presence and impact of climate change at the Holy Site of Arafat by employing synoptic analysis based on NOAA datasets (1966–2022) focusing on geopotential height at 500 mb, sea-level pressure, and zonal wind at 250 mb. Observed changes in these parameters indicate a strengthening of high-pressure systems and a northward shift of rainfall belts, suggesting a drier regional climate with potential for more localized …

Evaluation Of Some Faba Bean Genotypes Under Soil Salinity In Nubaria Region, Egypt, Azza F. El-Sayed, A. A. Abou-Zeid, Doha M. Kandeel, A. A. Sallam

Journal of King Abdulaziz University: Meteorology, Environment and Arid Land Agriculture

A field experiment was carried out at Nubaria Research Station during winter of 2022/2023 and 2023/2024 growing seasons, to evaluate salt stress tolerant of new faba bean genotypes and analyze the relationship between the yield potential and physiological traits. Nine diverse faba bean genotypes (M4, M6, L1, L5, L6, L13, L16, L17 and L18) and commercial three faba bean cultivars (Nubaria 1, Nubaria 3 and Nubaria 5) were used in this study. Genotypes were arranged in a randomized complete block design with five replicates. Among these genotypes, the Nubaria 3 cultivar recorded the highest average values for the number of …

The Impact Of The European Excellence Model (Efqm 2020) On Organizational Sustainability (A Field Study On Saudi Aramco Refinery Management Employees In Yanbu), Aeshah Hamed Alsulami, Suzan Mohammed Alqurashi

Journal of King Abdulaziz University: Meteorology, Environment and Arid Land Agriculture

This study was carried out aimed to identify the impact of applying the European Excellence Model (EFQM) (orientation, implementation, results) in the management of the Saudi Aramco Refinery at Yanbu on the level of organizational sustainability in its dimensions (economic, environmental, sociality). The descriptive analytical approach was used in describing the phenomenon and analyzing its data and the relationship between its components. The data was collected using a questionnaire from a sample of (257) employees, out of a total study population of (759) employees in the management of the Saudi Aramco Yanbu Refinery. The results showed that the level of …

From The Brink Of "Game Over", Yoshihiko Ariizumi

Learning, Teaching, & Researching Optimization

Everyone has weaknesses. There might even be challenges that seem absolutely impossible. But if a challenge is truly indispensable for your growth, why not open your mind and give it a try instead of giving up? In this article, I've shared some principles and their application through real-life examples, showing how what might seem like a miraculous door can open in unexpected ways.

Mula Botika Tungong Tiktok: Semiotikong Pagsusuri Sa Diskurso Ng Filipino Healthcare Practices Mula Kay Arshie Larga, Kiana Ysabel A. Nombrefia, Tracy Valerie E. Dumaraos, Leslie Anne L. Liwanag, Lois Mauri Anne L. Liwanag, John Eliquiel Jose C. Austria, Mon Karlo L. Mangaran

Dalumat: Multikultural at Multidisiplinaryong E-Journal sa Araling Filipino

Umiiral ang malalalim na suliranin ng healthcare system sa Pilipinas, kabilang ang kakulangan ng pondo, limitadong akses sa kalidad na pangangalaga, at mataas na gastusin sa medisina. Ginagamit ni Ramon Christian “Arshie” Larga na mas kilala sa username na “@arshielife,” isang lisensyadong parmasyutiko at content creator, ang TikTok bilang plataporma upang magbigay ng wastong impormasyon at labanan ang maling paniniwala sa kalusugan. Kilala si Arshie sa mga video tungkol sa medisina at kalusugan, na may tanyag na panimula sa kaniyang mga video na "let me explain." Sa tulong ng semiolohiya ni Roland Barthes (1915-1980), sinuri ng pag-aaral na ito ang …

Russian Verbs Of Motion In L2 Acquisition: Testing The Efficacy Of A Usage-Based Approach, Tobias-Alexander Herrmann

Russian Language Journal

Unprefixed Russian motion verbs present unique challenges for second language (L2) learners as they encode distinct types of motion events. Traditional, directionality-based methods of teaching these verbs have faced criticism, prompting the adoption of alternative, cognitively informed approaches. This article builds on usage-based methodologies, such as those proposed by Nesset and Janda (2022), to investigate whether teaching unprefixed verbs of motion (UVoMs) as constructions can enhance L2 instruction. Using the frequent UVoM pair idti and xodit′ , both meaning ‘walk’, as a case study, I pursue two main goals. First, drawing on corpus data, I examine the construction UVoM + …