Digital Commons Network^™

Reliability Evaluation Framework For Centralized Agricultural Internet Of Things (Agri-Iot), Fatoumata Thiam, Maissa Mbaye, Maya Flores, Alexander Wyglinski

All Rsif Scholars' Publications

This paper presents a holistic reliability evalua-tion framework for Agri-IoT based on real-world testbed and mathematical modeling of network failure prediction. A testbed has been designed, implemented, and deployed in the real-world in the experimental farm at Saint-Louis/Senegal as a representative area of Sahel conditions. Data collected has been used for real-world reliability analysis and to feed mathematical modeling of network reliability based on energy and environ-mental conditions data with Kaplan Meier and Nelson Aalen estimators. Key factors affecting the network’s lifespan, such as network coverage and density, are explored, along with a comprehensive evaluation of energy consumption to understand …

Control Systems In Renewable Energy: A Review Of Applications In Canada, Usa, And Africa. World Journal Of Advanced Engineering Technology And Sciences, Onyinyechukwu Chidolue, Cosmas Dominic Daudu, Valentine Ikenna Illojianya, Victoria Adetomilola Fafure, Kenneth Ifeanyi Ibekwe, Bright Ngozichukwu

All Rsif Scholars' Publications

This research explores the applications of control systems in renewable energy across Canada, the United States, and Africa. It underscores their pivotal role in optimizing efficiency and reliability by examining supervisory, predictive, and adaptive control strategies. The literature review delves into global and regional renewable energy landscapes, emphasizing unique challenges and opportunities. Technological innovations, including advanced monitoring, artificial intelligence, and blockchain, are investigated, highlighting their transformative impact. The paper anticipates prospects such as quantum computing, decentralized systems, and heightened cybersecurity measures. The findings contribute to understanding the nuanced interplay between control systems and renewable energy, offering insights for policymakers, researchers, …

Advances In Silicon–Carbon Composites Anodes Derived From Agro Wastes For Applications In Lithium-Ion Battery: A Review, Victoria Adetomilola Fafure, Daniel Barasa Bem, Stanley Wambugu Kahuthu, Michael Oluwatosin Bodunrin, Abosede Adefunke Fabuyide, Christianah Ajanaku

All Rsif Scholars' Publications

Recently, the growing demand for high-performing batteries and different environmental challenges (such include global warming and climate change) have increased the requirement and demand for Lithium-ion batteries (LIBs) used in advanced technologies (i.e., electric cars and many others). To meet this increasing demand, there is an urgent need for more advanced technologies and materials. In the pursuit of developing anode materials, silicon has emerged as the utmost favourable choice for the next generation of LIBs, aiming to substitute the commonly used graphite. Carbon is commonly used to render silicon (Si) suitable for use since Si cannot be used directly as …

Integration Of Renewable Energy In Industrial Operations: Experiences From Canada, Usa, And Africa, Onyinyechukwu Chidolue, Adetomilola Victoria Fafure, Valentine Ikenna I Illojianya, Bright Ngozichukwu, Cosmas Dominic Daudu, Kenneth Ifeanyi Ibekwe

All Rsif Scholars' Publications

This research paper explores integrating renewable energy into industrial operations, drawing insights from experiences in Canada, the United States, and various African nations. Against a global imperative to transition towards sustainable energy sources, the study delves into this transformative process's economic, environmental, and technological dimensions. The economic implications encompass a detailed analysis of upfront capital costs, return on investment, and broader considerations such as job creation and market competitiveness. Environmental impacts, including reducing greenhouse gas emissions and improving air and water quality, underscore the transformative potential of renewable energy integration. The technological landscape, marked by innovations in renewable energy technologies …

Green Data Centers: Sustainable Practices For Energy-Efficient It Infrastructure, Onyinyechukwu Chidolue, Peter Efosa Ohenhen, Aniekan Akpan Umoh, Bright Ngozichukwu, Victoria Adetomilola Fafure, Kenneth Ifeanyi Ibekwe

All Rsif Scholars' Publications

The digital age has led to a surge in connectivity, innovation, and information exchange, but it has also led to escalating energy consumption by data centers. Green data centers have emerged as a transformative solution, embodying a commitment to sustainability through eco-friendly practices and cutting-edge technologies. Key principles of green data centers include energyefficient hardware, renewable energy integration, advanced cooling systems, and resource optimization strategies. Energy-efficient hardware involves replacing outdated servers, storage systems, and network equipment with energy-efficient alternatives, such as virtualization technologies. This reduces power consumption and sets the stage for a more sustainable and technologically advanced data center …

Sustainable Cooling Solutions For Electronics: A Comprehensive Review: Investigating The Latest Techniques And Materials, Their Effectiveness In Mechanical Applications, And Associated Environmental Benefits, Peter Efosa Ohenhen, Onyinyechukwu Chidolue, Aniekan Akpan Umoh, Bright Ngozichukwu, Adetomilola Victoria Fafure, Valentine Ikenna Ilojianya, Kenneth Ifeanyi Ibekwe

All Rsif Scholars' Publications

This study presents a comprehensive review of the latest techniques and materials in sustainable cooling solutions for electronic systems, focusing on their effectiveness in mechanical applications and associated environmental benefits. The primary aim is to assess the current state and future prospects of sustainable cooling technologies, highlighting their role in addressing thermal management challenges while minimizing environmental impacts. The methodology adopted is a systematic literature review, drawing data from peer-reviewed academic journals, conference proceedings, and industry reports. The search strategy involved keyword searches, database filtering, and reference tracking, with a focus on recent advancements in cooling technologies and their environmental …

Potential Of Lignocellulosic Fiber Reinforced Polymer Composites For Automobile Parts Production: Current Knowledge, Research Needs, And Future Direction, Abdulrahman Adeiza Musa, Azikiwe Peter Onwualu

All Rsif Scholars' Publications

In recent years, there has been a notable surge in research focusing on the use of natural fiber-reinforced polymer composites (NFRPCs) in the automobile industry. These materials offer several advantages over their synthetic counterparts, including lightweight properties, renewability, cost-effectiveness, and environmental friendliness. This increasing research interest in NFRPCs within the automotive sector is primarily aimed at overcoming the challenges that have thus far limited their industrial applications when compared to conventional synthetic composites. This paper provides a comprehensive overview of the potential applications and sustainability of lignocellulosic-based NFRPCs in the automobile industry. It examines the current state of knowledge, identifies …

Desalination Performance In Versatile Capacitive/Battery Deionization Configurations Using A Cation Intercalating Electrode, Bethwel Kipchirchir Tarus, Zahid Ullah, Yusufu Abeid Chande Jande, Karoli Nicholas Njau, Jeehye Byun, Moon Son

All Rsif Scholars' Publications

Capacitive deionization (CDI) is an alternative desalination technique for low-to-moderate salinity feeds. Despite significant advances in electrode material design, CDI's thermodynamic energy efficiency (TEE) remains low and has become important in assessing feasibility for real-world applications. Innovative cell configurations are key to improving TEE; however, their performance trends need to be contextualized, given the scattered information that can be challenging to compare. This study evaluates various desalination cells, including conventional CDI, single- and multi-channel asymmetric CDI, and multi-channel battery deionization (BDI). Using MoS₂ as a representative intercalating material, the position of active sites on composite electrodes …

Utilizing Tilapia Fish Skin Biomaterial For Burn Wound Dressing: A Systematic Review, Bhahat Lawlley Zimba, Mwemezi J. Rwiza, Elingarami Sauli

All Rsif Scholars' Publications

Burn wound management remains a burden in our hospitals with more than 180,000 people dying annually due to burn-related complications. Bacterial infections further affect the healing duration of the wound hence most treatment modalities have aimed at maintaining aseptic conditions on the wound. Silver sulphadiazine (SSD) cream 1 % has demonstrated the ability to bind to bacteria cell walls, its amino acids and DNA, and interferes with its respiratory chain resulting in bacteria death. SSD is considered the gold standard treatment of burn wounds despite its shortfalls in the treatment of burns. As a result, recent studies have focused …

Understanding The Factors Influencing The Properties Of Biomass‐Derived Porous Carbon And Their Impacts On Electrical Double‐Layer Capacitor Electrodes: A Comprehensive Review, Colette Abimana

All Rsif Scholars' Publications

The use of biomass as carbon precursors has been extensively investigated, with a particular emphasis on examining the properties of derived porous carbon and its application in electrical double-layer capacitors (EDLCs). Biomass-derived porous carbon-based electrodes have shown promising properties that can improve the efficiency of EDLCs. However, despite the extensive research in this field, no definitive solution has been proposed. This review investigates in depth three main factors that impact the electrochemical performance of derived porous carbon-based electrodes: (1) the initial properties of raw biomass as carbon precursors, (2) operating conditions, and (3) physicochemical properties of biomass-derived porous carbon materials. …

Optimization Of Desorption Parameters Using Response Surface Methodology For Enhanced Recovery Of Arsenic From Spent Reclaimable Activated Carbon: Eco-Friendly And Sorbent Sustainability Approach, Jonas Bayuo, Mwemezi J. Rwiza, Joon Weon Choi, Mika Sillanpää, Kelvin Mark Mtei

All Rsif Scholars' Publications

Desorption and adsorbent regeneration are imperative factors that are required to be taken into account when designing the adsorption system. From the environmental, economic, and practical points of view, regeneration is necessary for evaluating the efficiency and sustainability of synthesized adsorbents. However, no study has investigated the optimization of arsenic species desorption from spent adsorbents and their regeneration ability for reuse as well as safe disposal. This study aims to investigate the desorption ability of arsenic ions adsorbed on hybrid granular activated carbon and the optimization of the independent factors influencing the efficient recovery of arsenic species from the spent …

Phase Structure Transformation And Growth Mechanism For Iron Oxide Nanoparticles Synthesized By Mechanochemical Method: A Mini-Review, Joseph Ekhebume Ogbezode, Nkechi Elizabeth Offia-Kalu, Bello A. Abdulhakeem, Vitalis Chioh Anye, Peter Azikiwe Onwalu

All Rsif Scholars' Publications

The various methods of synthesis of iron oxide nanoparticles (IONPs) have been extensively studied in several works of literature. These methods include physical, chemical, and biological nanosynthesis methods with applications in water filtration, environmental remediation, plant improvements, biomedicines, etc. These nanosynthesis approaches revolve around their mode of application, nanomaterial properties, and characterization mechanisms, while little effort has been made to investigate the effect of nanosynthesis parameters based on phase transformation and growth mechanisms of such IONPs. The parameters, which are physical, chemical, mechanical, mineralogical, and morphological, have proven to have tremendous implications on the magnetic behaviors, crystalline size, degree of …

Physical, Mechanical, And Durability Properties Of Concrete Containing Different Waste Synthetic Fibers For Green Environment – A Critical Review, Tsion Amsalu Fode, Yusufu Abeid Chande Jande, Thomas Kivevele

All Rsif Scholars' Publications

The world is facing a major challenge on ways to manage the waste synthetic materials that are potentially polluting the environment. So, by 2040 it is estimated from the total synthetic textile products that will be produced, the accumulated synthetic textile waste will be more than 73.77 %, if recycling of waste may not be managed by novel technology in different sectors. Hence, this is a great challenge coming to the world if it is not effectively recycled mainly to be used in the construction sector which covers a broad area. However, detailed critical review is needed to gather different …

Effect Of Natural Pozzolana On Physical And Mechanical Properties Of Concrete, Tsion Amsalu Fode, Yusufu Abeid Chande Jande, Thomas Kivevele

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Construction industries are rapidly growing, sacking high amounts of concrete which has a highly dense microstructure with excellent mechanical properties, more durable, and highly eco-friendly materials. Hence, many of the researchers are interested in solving this problem with replacing concrete by natural pozzolana (NP) which is a supplementary cementitious material mostly from volcanic sources having much active silica content that can improve the durability and mechanical properties of concrete. However, it is not well-known which common optimum replacement range can give the most desirable concrete properties. So, the present study sought to review the effects of replacing NP from volcanic …

Effects Of Raw And Different Calcined Bentonite On Durability And Mechanical Properties Of Cement Composite Material, Tsion Amsalu Fode, Yusufu Abeid Chande Jande, Thomas Thomas Kivevele

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Bentonite is a natural pozzolanic material mostly composed of SiO2 and employed in cementing materials for the reduction of cement consumption and CO2 emission besides improving performance of cement composite material by consuming portlandite to form extra C-S-H gel. So, many researchers studied on partial replacement of bentonite to improve concrete performance. However, bentonite mostly exists as a consolidated form that needs treatment for activation of pozzolanic reactivity to improve performance of cement composite materials. However, it is not well known how different replacement of raw and calcined bentonite affects performance of cementing materials in different hazardous environment. Hence, the …

Modeling And Optimization Of Sisal Fiber Degradation Treatment By Calcined Bentonite For Cement Composite Materials, Tsion Amsalu Fode, Yusufu Abeid Chande Jande, Thomas Kivevele

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The treatment of sisal fiber by pozzolanic materials like kaolin and silica-fume has been explored; however, no study has modeled and optimized the effect of sisal fiber degradation treatment using calcined bentonite. Therefore, the present study investigate the effects of treating sisal fiber with different doses of calcined bentonite, bentonite calcination temperatures, and times on fiber breaking load, degradation resistance, and water absorption using the central composite design-response surface method (CCD-RSM). The best performance of the optimum treated sisal fiber selected from the CCD-RSM based on the established goal of maximizing breaking load and degradation resistance with minimum water absorption, …

Activated Bentonite For Physical, Mechanical, And Durability Properties Of Concrete—A Review, Tsion Amsalu Fode, Yusufu Abeid Chande Chande Jande, Thomas Kivevele

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Bentonite mostly exists in many counties and studies reported employment of activated bentonite in the concrete improves concrete performance more than using raw bentonite. However, it is not well-known which range of bentonite activation temperature and employment dose gives the best concrete performance for the sustainability of activated bentonite in construction materials. Therefore, the present study detail reviewed the effect of activated bentonite at different heating temperatures and replacement doses of bentonite on the durability, physical, mechanical, and microstructural properties of concrete. Also, environmental and economic beneficiary of employing activated bentonite in concrete is evaluated. As the review of various …

Modeling And Optimization Of Calcined Bentonite Replacement In The Mechanical And Durability Properties Of Mortar, Tsion Amsalu Fode, Yusufu Abeid Chande Chande Jande, Thomas Kivevele, Nima Rahbar

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Currently, pozzolanic materials are mostly recommended to improve the properties of cement composite materials and reduce environmental pollution, challenging the world owing to ordinary Portland cement (OPC) production. Bentonite is mostly available natural pozzolana, however, extensive studies conducted on other clays like kaolin and some studies reported that bentonite exists in a consolidated form which requires heating activation methods. Therefore, it is essential to investigate the properties of bentonite in detail for its sustainable use, and it is novel to model and optimize the optimum bentonite calcination temperature and time for the best performance replacement in mortar. Hence, the present …

Risk Factors Affecting Intrahospital Transport Of Critically Ill Patients At Oncology Center, Marwa Fathallah Abdo, Manal Elsayed Ismail, Nahla Shaban Khalil

Nursing

Background: Ensuring patient safety during Intrahospital transportation (IHT) is a worldwide critical concern in healthcare settings. Critically ill patients are particularly vulnerable to complications during IHT. Aim: This study aimed to identify the risk factors affecting the Intrahospital transport of critically ill patients at oncology center. Methods: A descriptive, observational design was utilized to collect data from two intensive care units (ICUs) at Mansoura oncology center in Egypt. The study included sixty adult patients undergoing IHT from the ICU to other departments. Two tools were used to gather information. Tool I: patient’s demographic and medical relevant data, tool II: patients' …

Relationship Between Internet Social Media Addiction And Communication Patterns Among Adolescents, Mona Hassan Abdelaal

Nursing

Abstract: Background: Internet social media and availability of mobile devices have an impact on the way people communicate. Adolescents have a wide range of positive and negative impacts come from the use of social media. Aim: Assess the relationship between internet social media addiction and communication patterns among adolescents. Design: A descriptive correlational design was utilized. Setting: The study was carried out at Technical Nursing Institutes in Benha city which consists of 2 Institutes and contain total (320) students from Benha Technical Nursing Institute for girls with total (170) students and from Benha Technical Nursing Institute of Health Insurance for …

Effect Of An Intervention Bundle On Thirst Intensity Among Intensive Care Unit Patients, Marwa Abdo, Manal Sayed Ismail, Nayera Mohamed Tantaewy

Nursing

Background: Dry mouth and thirst are commonly associated with a strong desire to drink fluid. Despite this, thirst is often overlooked in the intensive care unit (ICU). Patients in the intensive care unit (ICU) experience various causes of distress. Aim: This study aimed to assess the effect of an intervention bundle on thirst intensity among ICU patients. Methods: A quasi-experimental research design was used with a purposive sample of 100 ICU patients were selected and randomly divided into two groups: the thirst bundle group comprised of 50 ICU patients who received thirst bundle intervention with lip moisturizer, peppermint water mouthwash, …

Effect Of Incentive Spirometry On Respiratory Parameters Among Critically Ill Patients With Chest Tube Drainage, Marwa Abdo, Nayera Mohamed Tantaewy, Asmaa Ibrahim Aboseda

Nursing

Background: Chest tube drainage is a common procedure following cardiac or thoracic surgery, which can lead to respiratory disorders. Incentive spirometry (IS) is used to enhance respiratory outcomes by promoting deep breathing and lung expansion. Aim: evaluate the effect of incentive spirometry on respiratory parameters among critically ill patients with chest tube drainage. Research Design: A quasi-experimental design was used in this study. Setting: Cardiothoracic intensive care unit at the Cardiothoracic and Vascular Surgery Center of Mansoura University. Subjects: A convenience sample of 120 patients who underwent chest tube drainage was randomly assigned to either the IS group (n = …

Evaluation Of Soft And Hard Tissue Changes Around Guided Immediate Implants In The Esthetic Area With Immediate Temporization: A Prospective Clinical And Radiological Pilot Study, Pierre Lahoud, Elie Bou Assi, Abdallah Menhall, Lara Nasr, Christian Makary

International Arab Journal of Dentistry

Objectives: This study aimed to assess soft and hard tissue changes occurring 6 and 12 months after guided implant placement into extraction sockets and immediate temporization in the esthetic zone.

Methods: Eight patients requiring single immediate implant placement in the anterior mandible or maxilla were included in this study. A traumatic extractions were performed using ultrasonic instruments and implants were placed into extraction sockets following digitally guided surgery. Gap between implants and buccal bone plate was filled with allogeneic bone substitutes. Implants were immediately temporized with pre-prepared PMMA crowns. Cone Beam Computed Tomography and digital impressions were done …

Comparison Of The Failure Between Conventional Pmma And Milled Pmma Full Arch Maxillary Interim Prosthesis Fixed On 4 Implants: An In Vitro Study, Tatiana Bou Sakr, Hani Tohme, Natalia Bou Sakr, Victor Ghoubril, Carole Abi Ghosn Yared

International Arab Journal of Dentistry

Objectives: The principal objective of this study was to compare the failure load between the conventional heat polymerized PMMA and the CAD/CAM milled PMMA interim full arch implant prostheses. The secondary aim was to evaluate the success of the distal extension of the temporary PMMA prosthesis.

Methods: A metallic edentulous upper arch model with 4 Straumann screw-retained abutment digital analogs was used to create 15 specimens for each of the 2 groups: Conventional and milled. Failure load was measured on 5 different regions on the left and right side of each specimen with the YLE universal testing machine: …

Testing The Strength Of Thin Feather-Edge Monolithic Multilayered Zirconia Crowns: A Pilot Study With A Novel Acoustic Test, Estelle Saab, Camille Haddad, Maher Abboud, Maha Daou, Amine Zoghbi

International Arab Journal of Dentistry

Introduction: Limited research has explored the mechanical characteristics of recently introduced multilayered monolithic zirconia (MZC) crowns with feather-edge margins design. Moreover, most of the conventional techniques for evaluating the mechanical behavior of brittle dental ceramics rely on destructive tests, making it impossible to precisely evaluate real strength values due to premature crack initiation detection failure.

Objectives: The main objective of the study was to assess the load capacity of translucent multilayered monolithic zirconia crowns with feather-edge margin thicknesses of 0.4 mm and 0.5 mm. Additionally, the research introduced a novel non-destructive acoustic emission testing (AET) technique in the …

The Role Of Neutrophil-To-Lymphocyte Ratio (Nlr), Lymphocyte-To-Monocyte Ratio (Lmr), And Platelet-To-Lymphocyte Ratio (Plr) In Oral Cancer And Acute Dental Infections, Sasti Priya Govindasamy Sukumar, Ravikumar Pethagounder Thangavelu, Karthik Rajaram Mohan, Ramachandra Reddy Gowda Venkatesha, Kumar Appusamy

International Arab Journal of Dentistry

Objectives: The present study was a cross-sectional observational study, which was carried out on patients reported to the Department of Oral Medicine and Radiology. This study aims to evaluate the hemogram parameters NLR, LMR, and PLR among 90 Patients.

Methods: Patients were divided into 3 groups: Group A consists of 30 patients with histopathological confirmed oral cancer. Group B consists of 30 patients who presenting acute dental infections. Group C consists of 30 patients clinically healthy subjects. The hemogram parameters NLR, LMR and PLR were compared in the 3 groups and we studied their correlation to the clinical …

Investigation Of Fracture Resistance With Different Diameters Of Polyetherketoneketone Post And Core Materials: A Pilot Study, Maya Kabbara, Ryan Harouny, Habib Rahme

International Arab Journal of Dentistry

Objectives: The primary objective of this study is to investigate the resistance to fracture of Polyetherketoneketones PEKK, used as post and core by fabrication in different diameters in the canal, and comparing the test results for each group.

Methods: Thirty extracted mandibular premolars were selected, endodontically treated and prepared to receive the post and cores milled from polyetherketoneketone disk. The specimens were randomly divided into five groups (n = 6) respectively: group 1 received pekk post with diameter = 0.70 mm, group 2 received pekk post with diameter = 0.90 mm, group 3 received pekk post with diameter …

Digital Assessment Of Soft And Hard Tissue Alterations After Anterior Maxillary Tooth Extraction, Robin Jalkh, Stephanie Mrad, Emile Chrabieh, Joe Bassil

International Arab Journal of Dentistry

Objectives: This study aimed to assess dimensional alterations in soft and hard tissues 12 weeks post-extraction using novel computerized methods. Secondary objectives included exploring potential correlations between soft tissue changes and underlying bone variations, as well as investigating relationships between soft and hard tissue alterations and various contributing factors.

Methods: For all patients, preoperative and postoperative CBCT scans and intra-oral scans were obtained. Soft and hard tissue dimensions before extraction and at 12 weeks post-extraction were measured using 3D-slicer software. Both DICOM and STL files were superimposed, and measurements were taken at 2mm and 4mm from the facial …

Bone-To-Implant Surface Contact As A Criterion For Immediate Implant Placement With Simultaneous Sinus Augmentation In The Upper Molars' Interradicular Bone: A Radiological Cbct Study, Nawal Baba, Nabil Ghosn, Abdel Rahman Kassir, Lara Nasr, Gabriel Menassa, Carole Chakar

International Arab Journal of Dentistry

Objectives: The aim of this study is to determine which type of vertical relationship (between molar apices and the sinus floor) is correlated with the most favorable bone to implant contact (BIC).

Methods: The CBCT database of the Faculty of Dental Medicine was used for datasets. For each dataset, a prosthetically-driven virtual implant placement was placed in the remaining interradicular bone. Potential BIC was measured using two different implant macrogeometries (straight and tapered).

Results: The study included 20 maxillary molars with divergent root anatomy: 90% of the molars had a type II vertical relationship with the sinus …

Ai And Radiologist Assessments On The Prevalence Of Tmj Osteoarthritis Using Radiographic Images: A Comparative Study, Louloua Mourad, Nayer Abo El Saad, Yehia El Mahallawy

International Arab Journal of Dentistry

Objectives: This study aims to address the significant discomfort and functional impairment associated with temporomandibular joint osteoarthritis (TMJ OA), which negatively impacts the quality of life. It emphasizes the importance of prompt diagnosis and explores the potential of an Artificial Intelligence (AI) system to enhance TMJ OA diagnosis.

Methods: The prevalence of TMJ OA was evaluated using 3 diagnostic tools: the gold standard, the AI model, and an examiner. In total, 132 patients who performed 190 cone-beam computed tomography (CBCT) images were included.

Results: The prevalence of TMJ OA was 62.11% using the gold standard, 63.68% using …