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Articles 34021 - 34050 of 294547

Full-Text Articles in Physical Sciences and Mathematics

Electrochemical-Thermal Model Of A Lithium-Ion Battery, Paul Kalungi Jan 2024

Electrochemical-Thermal Model Of A Lithium-Ion Battery, Paul Kalungi

Browse all Theses and Dissertations

Lithium-ion batteries are an integral component of energy storage systems for renewable energy applications owing to their high energy density. Extensive research has therefore been carried out, utilizing both experimental and computational methods, to aid in a deeper understanding of lithium-ion batteries. Challenges related to efficiency, safety and thermal management persist, particularly during high current draw, extreme temperature conditions and extreme dynamic current operation such as in electric vehicles. This thesis work presents an electrochemical-thermal model of a lithium-ion battery that simulates and analyzes the variation of electrical behavior, chemical behavior and thermal behavior. The electrochemical model is developed by …

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Pneumonia Detection With Limited And Imbalanced Data Using Energy-Based Out-Of-Distribution Technique, Jasbin Karki Jan 2024

Pneumonia Detection With Limited And Imbalanced Data Using Energy-Based Out-Of-Distribution Technique, Jasbin Karki

Browse all Theses and Dissertations

The automated detection of pneumonia through chest X-ray presents a critical challenge in medical diagnostics, particularly due to the restrictions of limited and imbalanced chest X-ray data for training AI models. Traditional methods that depend on softmax confidence scores can be overconfident even when generating erroneous outputs especially when they are processing completely new inputs, leading to unreliable diagnostic results. This research addresses challenges in AI models which aim to develop a robust pneumonia detection system using an Energy-Based Out-of-Distribution (OOD) technique that can work effectively even with limited and imbalanced data. The study focused on creating a more reliable …

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Test-Time Backdoor Attack Using Universal Perturbation, Jesse Alexander Smith Jan 2024

Test-Time Backdoor Attack Using Universal Perturbation, Jesse Alexander Smith

Browse all Theses and Dissertations

The rapid growth and widespread reliance on machine learning (ML) systems across critical applications such as healthcare, autonomous driving, and cybersecurity have un- derscored their transformative potential and heightened their susceptibility to adversarial attacks and vulnerabilities. This thesis investigates vulnerabilities in ML models, focusing on backdoor attacks, including naive backdoor attack, feature collision backdoor attack, hidden trigger backdoor attack, and test-time backdoor attack using universal perturbation technique. These methodologies demonstrate how adversaries can automate and conceal malicious behaviors to achieve specific objectives, posing significant challenges to ML model integrity and trustworthiness. The research provides a comprehensive analysis of the theoretical …

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Semantics-Aware Text-Guided Aerial Image Synthesis By Feature Augmented Diffusion Models, Douglas J. Townsell Jan 2024

Semantics-Aware Text-Guided Aerial Image Synthesis By Feature Augmented Diffusion Models, Douglas J. Townsell

Browse all Theses and Dissertations

Aerial imagery provides crucial insights for various fields, including remote monitoring, environmental assessment, and autonomous navigation. However, the availability of aerial image datasets is limited due to privacy concerns and imbalanced data distribution, impeding the development of robust deep learning models. While recent text-guided generative models have shown promise in synthesizing high-quality images, they fall short in handling the unique challenges of aerial imagery, including densely packed objects, intricate spatial relationships, and the absence of paired text-aerial image datasets. To tackle these limitations, we propose STARS, a groundbreaking framework for Semantic-aware Text-guided Aerial image Refinement and Synthesis. STARS introduces a …

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Development Of Sulfur-Based N-Heterocyclic Carbenes And Their Potential Energy Applications, Kalpana Sampath Jan 2024

Development Of Sulfur-Based N-Heterocyclic Carbenes And Their Potential Energy Applications, Kalpana Sampath

Browse all Theses and Dissertations

N-heterocyclic carbenes (NHCs), a characteristic 5-membered ring structure, contain a carbene carbon and at least one nitrogen atom. The presence of nitrogen atoms in the cyclic structure has two effects on its electronic structure: it withdraws σ-electrons and donates π-electrons to the carbene carbon, significantly enhancing the electronic richness and stability of the carbene center. Incorporating heteroatoms like sulfur, oxygen, or phosphorus into the NHC framework has paved the way for advanced developments in their structural properties. The incorporation of additional aromatic ring/heteroatom into NHC offers novel pathways for functionalization, ultimately broadening its scope of potential applications. The primary goal …

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Functionalized 1,4-Naphthoquinone-Annulated N-Heterocyclic Carbenes For Biomedical Applications, Dilsha Samanali Wickramasinghe Jan 2024

Functionalized 1,4-Naphthoquinone-Annulated N-Heterocyclic Carbenes For Biomedical Applications, Dilsha Samanali Wickramasinghe

Browse all Theses and Dissertations

Gold has long been recognized for its medicinal applications, dating back centuries. The use of N-heterocyclic carbenes (NHCs), stable, tunable ligands, has revolutionized the development of metal complexes, particularly those involving gold. Among these, Au-NHC complexes have shown significant promise in treating various diseases, especially arthritis and cancer. More recently, our research has focused on synthesizing dual-targeting naphthoquinone-annulated NHC-based gold(I) complexes, which have demonstrated impressive therapeutic potential in cancer treatment. This emphasizes the growing importance of gold-based complexes in developing more selective and effective cancer therapies. By strategically tuning the electronic and steric properties of these complexes, we have explored …

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Graph-Centric Bot Detection: Addressing Extreme Data Imbalances, Heterophily, And Scarcity, Bradley T. Ashmore Jan 2024

Graph-Centric Bot Detection: Addressing Extreme Data Imbalances, Heterophily, And Scarcity, Bradley T. Ashmore

Browse all Theses and Dissertations

The digital landscape is ever-evolving. In recent years the amount of bot traffic, traffic generated by autonomous applications over the internet has increased significantly. Many bots perform useful and needed functions, however, malicious bots are known sources of both common and emerging security threats. Denial-of-Services (DoS), information theft, and credential stuffing have all been conducted by malicious software running on unknowingly infected machines. The dichotomy of useful bots operating in the same networks as malicious bots combined with novel bot attacks and an ever-increasing number of personal devices connecting to the Internet drives the need for continued advancement of malicious …

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A Trusted Adversarial Ml Countermeasure Approach For Secure And Resilient Ai-Driven Hardware Trojan Detection, Mohammed G M Alkurdi Jan 2024

A Trusted Adversarial Ml Countermeasure Approach For Secure And Resilient Ai-Driven Hardware Trojan Detection, Mohammed G M Alkurdi

Browse all Theses and Dissertations

Semiconductor microelectronics Integrated Circuits (ICs) are increasingly integrated into critical life applications including medical, aerospace, and Internet of things. Their increasing importance as a technology gave rise to critical concerns regarding their security. This has led to the focus of the research community on hardware Trojans, which are malicious modifications to the ICs with undesirable outcomes. Their detection is becoming increasingly critical, with many researchers proposing methods to do so such as reverse engineering, logic testing, and side-channel analysis. Many of these proposals utilize machine learning methods to detect these malicious modifications with high accuracy and confidence. However, machine learning …

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Bayesian Estimation Of Hierarchical Linear Models From Incomplete Data: Cluster-Level Non-Linear Effects And Small Sample Sizes, Dongho Shin Jan 2024

Bayesian Estimation Of Hierarchical Linear Models From Incomplete Data: Cluster-Level Non-Linear Effects And Small Sample Sizes, Dongho Shin

Theses and Dissertations

We consider Bayesian estimation of a hierarchical linear model (HLM) from small sample sizes. The continuous response Y and covariates C are partially observed and assumed missing at random. With C having linear effects, the HLM may be efficiently estimated by available methods. When C includes cluster-level covariates having interactive or other nonlinear effects given small sample sizes, however, maximum likelihood estimation is suboptimal, and existing Gibbs samplers are based on a Bayesian joint distribution compatible with the HLM, but impute missing values of C by a Metropolis algorithm via a proposal density having a constant variance while the target …

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New Method For Computing The Euclidean Condition Number With Rim-C, Cody Mccarthy Jan 2024

New Method For Computing The Euclidean Condition Number With Rim-C, Cody Mccarthy

Dissertations, Master's Theses and Master's Reports

The condition number, being critical to solving linear systems, has many impor-
tant applications. Specifically for robust control analysis, the Euclidean norm has
widespread use over the 1-norm and ∞-norm such as determining a control system’s
stability to uncertainty [1]. Much work has been done with estimating the Euclidean
condition number, but current algorithms for computing said condition number, with
large matrices, tend to run slow as well as requiring a large amount of computa-
tional resources. This report seeks to provide a more time efficient algorithm that
utilizes MATLAB’s eigs, svds, and normest commands as well as the recently …

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An Investigation Of Students' Modes Of Thinking Concerning Linearity In Linear Algebra, Noa Levy Jan 2024

An Investigation Of Students' Modes Of Thinking Concerning Linearity In Linear Algebra, Noa Levy

Honors Undergraduate Theses

The intent of this thesis is to investigate student approaches to linearity within a linear algebra context, focusing on definitional, computational, and theoretical skills. Linear algebra’s abstract nature constitutes a major challenge for a significant sector of STEM students, with the course often serving as undergraduates’ first encounter with mathematical proofs and extrapolations. The current student struggle is reflected through the prominent gap in knowledge derived from a lack of a concrete understanding of rudimentary concepts (like linearity), pivotal to student success. As such, this investigation aimed to bridge this gap by considering students’ modes of thinking regarding the elementary …

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Hybridization Kinetics Of Four-Way Junctions Localized On A Dna Scaffold, Katherine N. Taylor Jan 2024

Hybridization Kinetics Of Four-Way Junctions Localized On A Dna Scaffold, Katherine N. Taylor

Honors Undergraduate Theses

DNA computing is an ever-growing field with scientists trying to design structures that optimize logic gate communication to develop fast, biologically compatible, computational structures. We hypothesize that by using the principles of DNA computing, it is possible to design a DNA tile capable of studying localized DNA hybridization that can differentiate between oligonucleotides of different structural conformations. This includes synthetically manipulating DNA into a nanostructure that can perform Boolean logic functions to calculate the different rates of hybridization. To test our hypothesis, we designed a DNA Tile that incorporated a 4WJ using YES logic. Linear and hairpin single-stranded (ss) DNA …

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Searching For Black Holes In The Galactic Center, Caden Zaccardi Jan 2024

Searching For Black Holes In The Galactic Center, Caden Zaccardi

Honors Undergraduate Theses

Due to the high extinction along the plane of the Milky Way towards the Galactic Center (GC), it is useful to look at objects that are bright in the near-infrared (near-IR) to obtain data with Earth-based instruments. To identify X-ray Binary (XRB) counterparts towards the GC, we used near-IR spectra from the Large Binocular Telescope (LBT). After reducing the LUCI/LBT spectra with the superFATBOY (sFB) pipeline, we compared our near-IR spectra to previously matched IR and X-ray sources in the GC (DeWitt, 2011). Particularly, we looked for H and He emission lines, which indicate signs of a hard radiation field …

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Mapping The Reaction Networks Of Cis Formed In The Ozone-Assisted Oxidation Of C₆ Acyclic And Endocyclic Alkenes, Zachary Clarke Jan 2024

Mapping The Reaction Networks Of Cis Formed In The Ozone-Assisted Oxidation Of C₆ Acyclic And Endocyclic Alkenes, Zachary Clarke

Honors Undergraduate Theses

Criegee intermediates (CIs) are highly reactive species generated during the ozonolysis of alkenes, exerting a critical influence on atmospheric oxidation, combustion chemistry, and synthetic processes. Their reactivity, encompassing unimolecular and bimolecular pathways, shapes oxidation mechanisms and product distributions in these environments. A key determinant of CI behavior is the structural nature of the parent alkene. Acyclic alkenes typically yield intermediates with minimal steric hindrance, facilitating rapid reactions, whereas endocyclic alkenes produce geometrically constrained CIs with enhanced internal stabilization, redirecting reaction pathways and reducing overall reactivity. Despite their importance, mechanistic understanding remains limited due to experimental challenges in detecting CIs and …

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Technological Advancements In Brunei’S Local Agriculture And Fisheries Companies: An Exploratory Study Based On Field Observations, Muhammad Firdaus Mujibuddin Syah Mustafa, Navaranjan Namasivayam, Hong Shyang Pei, Fatnin Farhanah Alihan, Amni Sahilah Sahrullamzah, Khairina Umairah Takiyaudin Jan 2024

Technological Advancements In Brunei’S Local Agriculture And Fisheries Companies: An Exploratory Study Based On Field Observations, Muhammad Firdaus Mujibuddin Syah Mustafa, Navaranjan Namasivayam, Hong Shyang Pei, Fatnin Farhanah Alihan, Amni Sahilah Sahrullamzah, Khairina Umairah Takiyaudin

ASEAN Journal on Science and Technology for Development

This exploratory study, through seven field observations and interviews, investigates the technological advancements transforming Brunei's agricultural landscape in pursuit of local production augmentation and self-sufficiency. It confronts challenges with emerging technologies like aquaponics, hydroponics, fertigation systems, closed-house poultry systems, and UV lighting, which hold promise for enhanced farming practices. The research provides a comprehensive assessment of current practices, including livestock management advancements, underscoring their potential to boost productivity, optimize resource use, and promote sustainable agriculture. Furthermore, it discusses the broader implications for industry standards, job employability, and alignment with Brunei's Vision 2035. The findings contribute invaluable insights, advocating for strategic …

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Exploring The Impact Of Vented Packaging Configurations On Airflow Patterns And Cooling Consistency For Muskmelons In A Cold Storage Environment, Nur Wafidah Roslan, Namasivayam Navaranjan, Zohrah Sulaiman, Naseem Uddin Jan 2024

Exploring The Impact Of Vented Packaging Configurations On Airflow Patterns And Cooling Consistency For Muskmelons In A Cold Storage Environment, Nur Wafidah Roslan, Namasivayam Navaranjan, Zohrah Sulaiman, Naseem Uddin

ASEAN Journal on Science and Technology for Development

The cooling effect of different vented packaging designs was investigated for packed muskmelons fruits in a commercial cold storage condition. Computational fluid dynamics (CFD) simulation and experiments were used. The airflow pattern, heat transfer and temperature profiles were predicted from simulation and analysed. The CFD results reveal an uneven and low efficient airflow distribution inside a commercially used vented packaging (Box A). This resulted slow cooling of the fruits in Box A. Two newly designed packaging (Box B and Box C) showed better airflow distribution around the fruits and cooled them faster than Box A. The design of Box C …

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Physicochemical Characterization Of Edible Insect Oils: Insights Into Fatty Acid Composition, Thermal Behavior And Quality Parameters, Eng-Tong Phuah, Yee-Ying Lee, Teck-Kim Tang, Guanghui Li, Shyang-Pei Hong, Syazana Abdullah Lim Jan 2024

Physicochemical Characterization Of Edible Insect Oils: Insights Into Fatty Acid Composition, Thermal Behavior And Quality Parameters, Eng-Tong Phuah, Yee-Ying Lee, Teck-Kim Tang, Guanghui Li, Shyang-Pei Hong, Syazana Abdullah Lim

ASEAN Journal on Science and Technology for Development

Edible insects are emerging as a sustainable food source due to their high nutritional value. This study employed the three-phase partitioning (TPP) method to extract oils from sago worm (Rhynchophorus ferrugineus), superworm (Zophobas morio), and cricket (Acheta domesticus). The study evaluated and compared the physicochemical properties of these insect oils, including iodine value (IV), peroxide value (PV), p-anisidine value (p-AV), acid value (AV), refractive index (RI), thermal behavior, and fatty acid compositions. Results revealed that the sago worm exhibited the highest oil yield (47.8 ± 2.2%) compared to the superworm (23.8 ± 1.4%) and cricket (6.4 ± 0.6%). Cricket oil …

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Recent Advance In Biodegradable Packaging From Banana Plant Feedstock: A Comprehensive Review, M. Atiq Juani, Namasivayam Navaranjan Jan 2024

Recent Advance In Biodegradable Packaging From Banana Plant Feedstock: A Comprehensive Review, M. Atiq Juani, Namasivayam Navaranjan

ASEAN Journal on Science and Technology for Development

This review focuses on recent advances in biodegradable packaging derived from banana plant waste, highlighting its pivotal role in addressing environmental concerns linked to conventional packaging materials. The shift toward sustainable packaging stems from the urgent need to combat plastic pollution, reduce reliance on non-renewable resources, and foster sustainability in the food industry. Banana plants, known for generating significant organic waste during cultivation and processing, provide a valuable source for developing biodegradable packaging. Researchers have successfully transformed banana waste into innovative, recyclable, and eco-friendly packaging solutions, promoting a circular economy. Biodegradable packaging, in contrast to traditional materials derived from fossil …

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Assessing The Organic Acids-Solubilized Collagen Derived From The Skin Of Unicornfish (Naso Reticulatus Randall, 2011) On Physicochemical And Structural Characteristics: Toward Alternative Source For Industrial Applications, Dayang Fazrianie Harianto, Abdul Aziz Jaziri, Rossita Shapawi, Ruzaidi Azli Mohd Mokhtar, Wan Norhana Md. Noordin, Masmunira Rambli, Nurul Huda Jan 2024

Assessing The Organic Acids-Solubilized Collagen Derived From The Skin Of Unicornfish (Naso Reticulatus Randall, 2011) On Physicochemical And Structural Characteristics: Toward Alternative Source For Industrial Applications, Dayang Fazrianie Harianto, Abdul Aziz Jaziri, Rossita Shapawi, Ruzaidi Azli Mohd Mokhtar, Wan Norhana Md. Noordin, Masmunira Rambli, Nurul Huda

ASEAN Journal on Science and Technology for Development

Converting skin by-product of unicornfish (Naso reticulatus Randall, 2011) into a valuable commodity like collagen is a good strategy to explore alternative sources for land-based animals. Additionally, marine fish collagens are preferable due to their safer and great properties. This project aimed to compare extractability of collagens prepared with three organic acids (i.e., acetic, lactic and citric acids), and their characteristics were also discussed. Collagen extracted with citric acid (CSCUS) (7.10%) had a significantly higher yield (p

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Antioxidant And Antimicrobial Properties Of Yellow Mealworm (Tenebrio Molitor) Protein Concentrates And Hydrolysates Derived From Varied Dietary Regimens, Shyang-Pei Hong, Eng-Tong Phuah, Wey-Lim Wong, Yee-Ying Lee, Teck-Kim Tang, Ali Yassoralipour Jan 2024

Antioxidant And Antimicrobial Properties Of Yellow Mealworm (Tenebrio Molitor) Protein Concentrates And Hydrolysates Derived From Varied Dietary Regimens, Shyang-Pei Hong, Eng-Tong Phuah, Wey-Lim Wong, Yee-Ying Lee, Teck-Kim Tang, Ali Yassoralipour

ASEAN Journal on Science and Technology for Development

The larval stage of the darkling beetle, Tenebrio molitor, often referred to as the yellow mealworm, has received significant attention as a promising source of high-quality protein for human consumption due to its exceptional nutritional profile. This study focused on assessing the antioxidant and antimicrobial activities of protein concentrates and hydrolysates obtained from mealworm specimens raised under distinct dietary conditions. One cohort of mealworms was sustained on food waste comprising rice bran, milled corn, and carrots (self-bred) (SM), while another group was exclusively provided with rice bran (commercially fed) (CM). Enzymatic hydrolysis of mealworm protein was accomplished using protease enzymes …

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Assessment Of Novel Plant-Based Fat Efficiency In Comminuted Chicken Meat System, Salma Mohamad Yusop, Shu Jo Lin, Nurkhuzaiah Kamaruzaman, Nurlisa Mohd Azhari Jan 2024

Assessment Of Novel Plant-Based Fat Efficiency In Comminuted Chicken Meat System, Salma Mohamad Yusop, Shu Jo Lin, Nurkhuzaiah Kamaruzaman, Nurlisa Mohd Azhari

ASEAN Journal on Science and Technology for Development

The composition of fats and oils significantly impacts the flavour, nutrition, and appearance of food. Excessive consumption of saturated fatty acids, primarily found in animal fats, raises the risk of coronary heart disease. To address this, plant-based fats are used as substitutes, with microalgae offering unique nutritional benefits as a fat source. This study evaluates the performance of structured plant-based fats, incorporating microalgae (Aurantiochytrium sp. SW1), as a fat substitute in chicken patties. Four formulations were tested: 0% (control), 5%, 7%, and 10% structured microalgae-based fat. Colour, texture, water-holding capacity, cooking loss, and microstructure in both raw and cooked samples …

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Non-Invasive Digital Refractometer To Measure Maturation Of Climacteric Fruits, Jhoorhanah A. Halim, Denni Kurniawan, Dina S. Laila, Allysa Norjemee, Nuur A. L. Nesseruddin, Asrarul A. Noraidi, Beston F. Nore Jan 2024

Non-Invasive Digital Refractometer To Measure Maturation Of Climacteric Fruits, Jhoorhanah A. Halim, Denni Kurniawan, Dina S. Laila, Allysa Norjemee, Nuur A. L. Nesseruddin, Asrarul A. Noraidi, Beston F. Nore

ASEAN Journal on Science and Technology for Development

Sugar content is a superior quality indicator for the post-harvesting and ripening status of climacteric fruits. Total soluble solids (TSS) represented by °Brix index is a measure of the sugar content. The conventional way to measure TSS is by invasive (IN) technique using manual or digital refractometers. While non-invasive (NIN) infrared refractometer devices have been developed in recent years for various agricultural and food science applications, its accuracy to measure fruit TSS directly is not straightforward, as the device is only dedicated to uses for a specific fruit. This study aims to investigate the suitability of the use of a …

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Formulation Of Naturally Flavoured Mineral Water With Curcuma Longa, Zumirra Affno, Aida M. Basri, Beston F. Nore Jan 2024

Formulation Of Naturally Flavoured Mineral Water With Curcuma Longa, Zumirra Affno, Aida M. Basri, Beston F. Nore

ASEAN Journal on Science and Technology for Development

Natural, organic flavoured beverages have become an increasingly important market in the food industry due to flavour and sensory requirements among consumers. Throughout human history, herbs and spices provide a spectrum of natural food flavouring, which became an eminent component of food preparations worldwide. However, their applications in beverages have not been fully exploited. The main objective of this study is to develop flavoured water formulation based on organic turmeric extracts from flower, leaf, and rhizome parts. We adhered the natural mineral water flavouring integrity at refrigerated storage condition (4oC) for a period of 12 weeks. The flavoured water was …

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Food Labelling Practices Of Local Products In Brunei Darussalam, Asrarul A. Noraidi, Zikri Zulkifli, Aida M. Basri, Ernina Rani, Beston F. Nore Jan 2024

Food Labelling Practices Of Local Products In Brunei Darussalam, Asrarul A. Noraidi, Zikri Zulkifli, Aida M. Basri, Ernina Rani, Beston F. Nore

ASEAN Journal on Science and Technology for Development

Food labelling is an essential feature for food product marketing and is mainly regulated by national food authority. Food package labelling provides information on product composition, usage instructions, shelf-life safety, storage conditions, and nutritional profile. The purpose of this study is to review the scope of the current food labelling system used in local food products. We surveyed 3 different food categories: 1) processed meat products, 2) bread, and 3) snacks, and examined the nutritional labelling criteria with respect to the carbohydrates, protein, and particularly sodium (salt) content. A broad market survey was carried out across Brunei and Muara district, …

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Nanocellulose Synthesized From Sugarcane Bagasse (S. Officinarum) Via Alkaline-Mechanical Process And Its Characterization, Wafiqah Daim, Hiroshi Uyama, Syazana Abdullah Lim Jan 2024

Nanocellulose Synthesized From Sugarcane Bagasse (S. Officinarum) Via Alkaline-Mechanical Process And Its Characterization, Wafiqah Daim, Hiroshi Uyama, Syazana Abdullah Lim

ASEAN Journal on Science and Technology for Development

Nanocellulose is one of many promising materials that have garnered the attention of researchers and industries. In this study, sugarcane bagasse (S. officinarum) was used to synthesize cellulose nanofiber (SB-CNF) via an alkaline-mechanical process. A comprehensive characterization of SB-CNF was conducted to explore its morphology via scanning electron microscopy (SEM) and dynamic force microscopy (DFM), assess its functional groups using Fourier transform infrared spectroscopy (FT-IR), analyze its thermal properties through thermogravimetric analysis (TGA), and lastly, evaluate light absorbance and transmittance using a UV-VIS spectrophotometer. Our findings revealed that SB-CNF resulted in a highly intertwined nanofiber structure within a nano-scale dimension. …

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Protein Content Analysis On Brunei Delicacies: Kelupis Sulang And Sulang Fruit, Siti Nadia Saifullzan, Jhoorhanah A. Halim, Mas M. Rambli, Aida M. Basri Jan 2024

Protein Content Analysis On Brunei Delicacies: Kelupis Sulang And Sulang Fruit, Siti Nadia Saifullzan, Jhoorhanah A. Halim, Mas M. Rambli, Aida M. Basri

ASEAN Journal on Science and Technology for Development

Traditional Bruneian delicacy which are often reserved for special occasions; called the kelupis Sulang made from glutinous rice, coconut milk, and the flesh of the Brunei Sulang fruit’s protein content were studied. The protein content of both kelupis and the sulang fruit were examined using both qualitative and protein concentration analyses. The analysis was performed using the Xanthoproteic test, Ninhydrin test, Sulphur Reduction test, and the Biuret test. The readings were obtained from the UV-Visible Spectrophotometry and revealed an average protein concentration of 21 mg/ml in aqueous extracts of kelupis sulang and 26.8 mg/ml in aqueous suspension of kelupis sulang …

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Nutritional Quality Of Cultured Giant Freshwater Prawns (Macrobrachium Rosenbergii), Nurul F.M.S. Rizal, Najeebah A. Tashim, Zuhairi Azahari, Aida M. Basri, Tiong H. Lim, Aqilah Junaidi, Suriayati Chuprat, Seno A. Putra, Hanif Fakhrurroja Jan 2024

Nutritional Quality Of Cultured Giant Freshwater Prawns (Macrobrachium Rosenbergii), Nurul F.M.S. Rizal, Najeebah A. Tashim, Zuhairi Azahari, Aida M. Basri, Tiong H. Lim, Aqilah Junaidi, Suriayati Chuprat, Seno A. Putra, Hanif Fakhrurroja

ASEAN Journal on Science and Technology for Development

Macrobrachium rosenbergii, or the giant freshwater prawn has high market demand due to its exceptional nutritional value for the human diet. Often, most nutritional studies focus on the edible prawn parts, rather than the prawn discarded components. The nutritional evaluation of different prawn parts can provide insights into the nutrient composition and guiding for the development of value-added products. Three groups of prawn samples were collected from 3 different ponds, representing different prawn sizes. The water quality analysis of each pond was also conducted to determine the extent to which it can affect the nutritional composition. The conventional and biochemical …

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Rice Farmer’S Perception And Factors Influencing Intention And Attitude On Adoption Of Hybrid Rice, Ahmad Mas'oud Muhd Halimi, Ulaganathan Subramanian Jan 2024

Rice Farmer’S Perception And Factors Influencing Intention And Attitude On Adoption Of Hybrid Rice, Ahmad Mas'oud Muhd Halimi, Ulaganathan Subramanian

ASEAN Journal on Science and Technology for Development

Rice is considered the staple food of Brunei Darussalam, where most rice is imported from different countries. This poses a risk regarding food security wherein an unwanted event of restricted rice importation, Brunei, may experience difficulties. Hybrid rice cultivation is one of Brunei's best food security options. We studied the farmers' attitudes towards mixed rice farming in Brunei. We divided the farmers into two groups for the purpose of our study. Agriculture cooperative members and non-members. For attitude, perceived ease of use positively impacts attitude significantly for member rice farmers, while perceived usefulness positively impacts attitude for non-member rice farmers. …

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Direct Blue 86 Textile Dye Removal From Aqueous Solution Using Rice Husk-Based Adsorbent, M. Zulbahari M. Zua, Muhammad Raza Ul Mustafa, Mohamed Hasnain Isa, Teh Sabariah Binti Abd Manan, Naimah Ibrahim, Rozeana Hj Md Juani, Wida Susanty Hj Suhaili, Asmaal Muizz Sallehhin Bin Hj Mohammad Sultan, Zuliana Binti Hj Nayan Jan 2024

Direct Blue 86 Textile Dye Removal From Aqueous Solution Using Rice Husk-Based Adsorbent, M. Zulbahari M. Zua, Muhammad Raza Ul Mustafa, Mohamed Hasnain Isa, Teh Sabariah Binti Abd Manan, Naimah Ibrahim, Rozeana Hj Md Juani, Wida Susanty Hj Suhaili, Asmaal Muizz Sallehhin Bin Hj Mohammad Sultan, Zuliana Binti Hj Nayan

ASEAN Journal on Science and Technology for Development

Adsorption by activated carbon is an effective method of dye removal. However, due to high production and regeneration costs of activated carbon, various studies on low-cost adsorbents have been conducted. Agricultural waste such as rice husk (RH) is seen to be a good adsorbent for dye removal. Moreover, rice husk is readily available. In this study, rice husk-based adsorbents were prepared by chemical and thermal treatments. Standard curve (colour vs absorbance) for Direct Blue 86 (DB 86) was prepared to determine the concentration of dye before and after adsorption. The adsorption potential of the adsorbent for textile dye DB 86 …

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Combating Corporate Fraud Through The Lens Of Corporate Governance In Malaysia, Emelia A. Girau, Dgku Habibah Ag Kee, Betsy Jomitin, Sazali Zainal Abidin, Imbarine Bujang Jan 2024

Combating Corporate Fraud Through The Lens Of Corporate Governance In Malaysia, Emelia A. Girau, Dgku Habibah Ag Kee, Betsy Jomitin, Sazali Zainal Abidin, Imbarine Bujang

ASEAN Journal on Science and Technology for Development

The increasing incidence of corporate fraud in major global companies has drawn significant scrutiny to the effectiveness of corporate governance in mitigating such fraudulent activities. Despite substantial improvements in corporate governance practices and the implementation of new regulatory frameworks aimed at curbing corporate fraud, instances of fraud continue to rise. If this situation persists, it will become a serious impediment to making substantial progress toward the 2030 Agenda for Sustainable Development. The objective of this study is to explore the interplay between corporate governance attributes, whistleblowing policies, and the likelihood of corporate fraud occurrences within the context of Malaysia. The …

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