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Comparison Between Experimental And 3d Finite Element Analysis Of Reinforced And Partially Pre-Stressed Concrete Solid Beams Subjected To Combined Load Of Bending, Torsion And Shear, A. S. Alnuaimi

The Journal of Engineering Research

This paper presents a non-linear analysis of three reinforced and two partially prestressed concrete solid beams based on a 20 node isoparametric element using an in-house 3D finite element program. Anon linear elastic isotropic model, proposed by Kotsovos, was used to model concrete behaviour, while steel was modelled as an embedded element exhibiting elastic-perfectly plastic response. Allowance was made for shear retention and for tension stiffening in concrete after cracking. Only in a fixed direction, smeared cracking modelling was adopted. The beams dimensions were 300x300 mm cross section, 3800 mm length and were subjected to combined bending, torsion and shear. …

Software And Hardware Developments For A Mobile Manipulator Control, F. Abdessemed, E. Monacelli

The Journal of Engineering Research

In this paper, we present the hardware and software architectures of an experimental real time control system of a mobile manipulator that performs tasks of manipulating objects in an environment of a large space. The mechanical architecture is a manipulator arm mounted on a mobile platform. In this work we show how one can implement an imbedded system, which includes the hardware and the software. The system makes use of a PC as the host and constitutes the high level layer. It is configured in such a way that it performs all the input-output interface operations; and is composed of …

Identification Of Friction/Vibration Interaction Between Solids, J. A. Abdo, N. Al-Rawahi

The Journal of Engineering Research

Dry-friction forces have been shown to depend not only on the characteristics of the surface in contact but also on the dynamic interaction of the contacting bodies. A viscoelastic mathematical model that accounts for the interaction at micro-scale of rough surfaces is developed. The mathematical formulation relates the tribological events at microscopic and macroscopic scales vibration response of a "mass on moving belt". The viscoelastic properties are presented by combining loss modulus with Young's modulus to obtain a differential operator on the interference, reminiscent of the Kelvin-Voigt model. The analysis of the system establishes the relation between friction force and …

Inexpensive And Accurate Measuring Device Forwater Constitute In Oil, M. Habli, M. Meribout, A. Al-Naamany, K. Al Busaidi

The Journal of Engineering Research

This paper presents an inexpensive and accurate measuring device for water constitute in oil. The new device is based on the relationship between the water constitute in oil and the pressure of a sample from the oil. Experimental results show that the device can attain a very high resolution that can reach up +/- 0.4% and it can be used to measure a full range of water percentage levels (0-100%). Experimental results showed good agreement with theory.

Vector Directional Distance Rational Hybrid Filters For Color Image Restoration, L. Khriji

The Journal of Engineering Research

A new class of nonlinear filters, called vector-directional distance rational hybrid filters (VDDRHF) for multispectral image processing, is introduced and applied to color image-filtering problems. These filters are based on rational functions (RF). The VDDRHF filter is a two-stage filter, which exploits the features of the vector directional distance filter (VDDF), the center weighted vector directional distance filter (CWVDDF) and those of the rational operator. The filter output is a result of vector rational function (VRF) operating on the output of three sub-functions. Two vector directional distance (VDDF) filters and one center weighted vector directional distance filter (CWVDDF) are proposed …

2d Idealisation Of Hollow Reinforced Concrete Beams Subjected To Combined Torsion, Bending And Shear, A.S. Al-Nuaimi, P. Bhatt

The Journal of Engineering Research

This paper presents a finite element model for idealisation of reinforced concrete hollow beams using 2D plane elements. The method of ensuring compatibility between the plates using two-dimensional model to analyze this type of structures is discussed. Cross-sectional distortion was minimised by incorporating end diaphragms in the FE model. Experimental results from eight reinforced concrete hollow beams are compared with the non-linear predictions produced by a 2D in-house FE program. The beam dimensions were 300x300 mm cross section with 200x200 mm hollow core and 3800 mm long. The beam ends were filled with concrete to form solid end diaphragms to …

Plastic Deformation Of Thin Plates Subjected To Quasi-Static And Dynamic Loadings, A. A.N. Aljawi

The Journal of Engineering Research

Deformation and failure of thin plates of mild steel were studied under quasi-static and dynamic impact loadings. Particular emphasis was placed on responses of simply supported circular plates subjected to centric orthogonal loadings. The latter comprised loadings due to relatively massive rigid cylindrical strikers with a hemispherical-end as well as a flat-end. The projectile motions featured variable and low impact velocities. Generally, good agreement was found between experimental results and those predicted by finite-element techniques for displacement-time curves and for force histories of the striker. It was concluded that the ABAQUS-based study (both the implicit and the explicit versions) revealed …

Commemorating August Thirteenth: Music And Theology In Eighteenth-Century Moravian Communities, Ryan M. Malone

Yale Journal of Music & Religion

One of the most important memorial days in the Moravian liturgical calendar is August Thirteenth, a commemoration of the communal spiritual awakening that eighteenth-century Moravians experienced on the Saxon estate of Count Nikolaus Ludwig von Zinzendorf (1700–1760). While the Moravian church has celebrated this storied event for centuries, complete with music-rich religious services, only a few original compositions were crafted specifically for these services. In light of the importance of August Thirteenth, and given of the abundance of musical works that eighteenth-century Moravian composers wrote for other memorial days and religious holidays, this article employs musicological and theological perspectives to …

"Kol Mekadesh Shevi'i": A Liturgical Melody Sung At Home, Naomi Cohn Zentner

Yale Journal of Music & Religion

This article draws upon the unusual characteristics, origins and prevalence of the melody to the poem "Kol mekadesh shevii" [He who sanctifies the Seventh day] and discusses how it came to be recognized in the past seventy years as a signifier of Ashkenazi pre-Holocaust musical and religious culture and in particular as a sonic marker of liturgical sound, although it was sung at home. The Kol mekadesh melody came over time to represent two vastly different symbolic positions. As a melody adopted from non-Jewish sources bringing new, sometimes controversial sounds into the synagogue, and as a typical synagogal …

Microfinance In Latin America: Sustainability, Growth, And Efficiency, Katelyn M. Hoidal

Global Tides

The subsequent research addresses the question: Within populous Latin American countries (Ecuador, Mexico, Panama, Argentina, Chile, and Peru), are microfinance institutions associated with differences in GDP and household consumption equally between 2010 and 2018? Which do they have a stronger correlation with? The essence of this question seeks to answer whether the correlation between MFIs and wealth indicators carries over to a national level or merely persists at an individual level. This research has been informed and influenced by literature and studies conducted across South Asia, Africa, and Latin America focusing on the research of Abdelkader, Naveeda, Annim, Campbell, Armendáriz, …

Where Is The Contemporary Design?, Anna Nelson

Student Research Symposium

Contemporary Design can be described as Design that is reflective of current trends and attitudes in design, specifically post-modern aesthetics and approaches that move beyond past stylistic and theoretical choices, even though it may be referential to the past.

2025 General Assembly Session Review, Tripp Perrin, Missy Wesolowski, Jennifer Walle Boyd

Virginia Dental Journal

The 2025 Virginia General Assembly introduced over 3,000 bills and passed nearly 1,900, including several impacting dentistry, healthcare access, and insurance practices. Key dental-related legislation addressed licensure for foreign graduates, expanded care for pregnant women, and provider fee transparency, with most awaiting gubernatorial action. Defensive efforts successfully blocked a malpractice cap increase for oral surgeons. Additional bills focused on telemedicine, prior authorization reforms, and medical debt protections.

Va Dent J April, May And June 2025

Virginia Dental Journal

The Spring 2025 issue of the Virginia Dental Journal (Volume 102, Number 2) highlights the Virginia Dental Association’s (VDA) continued focus on solving the dental workforce shortage through legislative advocacy, expanded educational pathways, and member engagement. President Dr. Justin Norbo outlines efforts such as partnering with colleges, supporting new training models, and pursuing licensure reforms. A key development is the debut of The Fulcrum Podcast, which offers in-depth conversations on topics like workforce issues, insurance transparency, and audit preparation.

The issue provides a detailed review of the 2025 General Assembly session, with updates on bills impacting dental practice, including …

The Myth Of The Fourteenth Amendment And The Civil Rights Act Of 1866, Earl M. Maltz

ConLawNOW

Although legal scholars who focus on the original meaning of the Fourteenth Amendment disagree about many things, almost all agree that John Bingham proposed what was to become Section One of the amendment in order to definitively establish the constitutionality of the Civil Rights Act of 1866. In fact, however, the Joint Committee on Reconstruction chose to insert the Bingham formulation in place of a provision that would have explicitly constitutionalized the Civil Rights Act. This Essay describes the circumstances that provided the backdrop for the consideration of the Bingham proposal and the implications that this context has for our …

Determining The Function Of Type Iv-B Crispr-Cas Systems, Eric Jenkins, Brendon Guinn

Student Research Symposium

CRISPR-Cas systems are a diverse group of prokaryotic adaptive immune systems that defend against Mobile Genetic Elements (MGEs) such as bacteriophages and plasmids. CRISPR-associated (Cas) proteins bind to guide RNAs (crRNAs) transcribed from a DNA repeat array (CRISPR array) containing spacers complementary to MGEs. Upon infection by a MGE, the Cas protein-crRNA complex binds to the target sequence in the invaders genome and cleaves the nucleic acid.

Marine Natural Products With Cytotoxic Properties Against Epithelial Ovarian Cancer, I. A.I. A. Burney

Journal of Agricultural and Marine Sciences

Epithelial ovarian cancer (EOC) is a common gynecological cancer and a leading cause of death, especially because the tumors develop resistance to cisplatin. New compounds are needed to achieve better disease control and survival. We examined the cytotoxic effect of Gallic acid (GA), Hymenialdisine, and Malformin A1 (MA1) on human ovarian cancer cells. Cytotoxicity was tested using cisplatin-sensitive (A2780s) and cisplatin-resistant (A2780cp) ovarian cancer cell lines, and a normal ovarian tissue cell line (HOSE6-3) using AlamarBlue assay, Hoechst dye, and flow cytometry, and the genes and proteins of interest were assessed using western blot, and qRT-PCR. The IC50 of Hymenialdisine …

Antibacterial Activity Of Moroccan Saffron By-Product Extracts Against Clavibacter Michiganensis Subsp. Michiganensis: The Causal Agent Of Tomato’S Bacterial Canker, Mamouni Rachid, Zineb Khadfy, Jadouali Si Mohamed, Atifi Hajar, Tahiri Abdelghani, Karra Youssef, Qessaoui Redouan, Chartier Agnes, Nehme Reine

Journal of Agricultural and Marine Sciences

This study aimed to investigate the effect of Moroccan saffron (Crocus sativus) floral by-products on the causal agent of bacterial canker of tomato caused by Clavibacter Michiganesis subsp Michiganesis (CMM). This work intends to replace chemical treatment methods with ecological, safe, and less expensive methods using extracts of saffron by-products. The phytochemical screening and the antioxidant activity of saffron by-products were studied. Moreover, the antibacterial activity of ethanolic extracts of saffron by-products was determined using the agar well diffusion method. The minimum inhibitory concentrations (MIC) of the saffron by-product extracts were determined by the dilution method using 96-well microplates. The …

Gender Analysis Of Practitioners Of Broiler Production Management Practices In Delta State, Nigeria, Theophilus Miebi Gbigbi, Pearl Chinagorom E-Okoronkwo

Journal of Agricultural and Marine Sciences

Despite women’s substantial participation and productive inputs, their role in broiler production has often being underestimated or ignored by the society. This study was conducted to provide information on the gap that existed on the management technologies observed by the male and female disparity. This study examined gender analysis of broiler production management practices, profitability and constraints. A sample size of 104 respondents was used by the multistage sampling procedure. Data was analyzed using descriptive and inferential statistics. The major findings were, the mean age for the males and females were 45 years and 43 years with majority of the …

Seasonal Variations Of Surface Mesozooplankton Community Structure In The Sea Of Oman And The Arabian Sea, Saud Salim Al-Busaidi, Michel René Claereboudt

Journal of Agricultural and Marine Sciences

The different characteristics and atmospheric forces over the Sea of Oman and the Arabian Sea are assumed to influence zooplankton seasonality and community structure. This work aimed to characterize the abundances and seasonality of coastal and surface mesozooplankton communities in the Sea of Oman (Muscat) and the Arabian Sea (Salalah), and the effects of environmental factors on their distribution. Zooplankton samples two contrasting coastal regions; 22 in the Sea of Oman, and 20 in the Arabian Sea, were collected during 2013-2014 from the surface and analyzed. Total zooplankton abundance was divided by the number of samples to obtain the monthly …

Analysis Of Shoreline Change Along The Coast Of The Wadi Al Ma’Awil Watershed, Oman, Using The Digital Shoreline Analysis System, Amna Al-Ruheili

Journal of Agricultural and Marine Sciences

In an arid climate, lack of water constitutes a challenge. One solution can be to use storage dams as a tool to facilitate groundwater recharge and provide water for various uses. However, dams cannot be constructed without affecting the environment of the coastal shoreline and its ecological habitats. This study investigated the structural changes (i.e. accretion or erosion) of the coastline along the Wadi Ma’awil watershed. The Wadi Ma’awil watershed was dammed in 1991, providing a 10M m3 dam capacity. Satellite images were obtained for 1972, 1984, 1994, 2008, 2014, and 2018, and coastlines were digitized. For this research, we …

Biotic And Abiotic Stresses Of Major Fruit Crops In Oman: A Review, Rashid A. Al-Yahyai, Latifa M. Al-Kharusi, Mumtaz M. Khan, Ali O. Al-Adawi, Ali M. Al-Subhi, Basim S. Al-Kalbani, Abdullah M. Al-Sadi

Journal of Agricultural and Marine Sciences

Oman is located in an arid region of the world that is characterized by adverse climatic conditions, including heat and drought. In recent years, it has also been affected by climate turbulence and the occurrence of severe weather, such as cyclones and heat/cold waves affecting large agricultural areas of the country. Fruit cultivation area represents 31% of the total cultivated area (97,239.58 ha) in the country. However, the production share is only 17% of the total crop production in the country (2.6 million tons). About 90% of the fruit cultivation area is dominated by date palm, banana, lime, and mango. …

Wheat Production In Oman: Experiences, Challenges And Opportunities, Muhammad Farooq

Journal of Agricultural and Marine Sciences

Bread wheat (Triticum aestivum L.) is the leading staple and strategic food crop in the Sultanate of Oman; however, the national wheat production can meet less than 1% of the domestic requirements. The balance is met through imports from Australia, Canada, Russia, and Argentina. However, reliance on imported wheat alone may put Oman at risk in the event of wheat export bans. Therefore, wheat production needs to be enhanced to ensure national food security. Nonetheless, water deficits, salinity, prolonged droughts, unavailability of stress resilient genotypes, and heatwaves challenge this notion. In this review manuscript, the current status, constraints, and opportunities …

Microbiological Assessment Of Locally Dried Fish In Oman: Technical Note, Aaisha K. Al-Saadia, Abdulrahim M. Al-Ismaili, Mohammed Al-Ruzeikib, Ismail M. Al-Bulushib

Journal of Agricultural and Marine Sciences

During fish drying process, elements and processes that affect the quality of dried fish might take place. The traditional sun-drying approach incurs major losses of the dried fish in terms of quantity and quality. Dried fish also suffer from insects and sand contamination as well as high concentration of ash especially when fish is dried on sand. The presence of microorganisms is another major factor affecting the quality of dried fish. In this project, a number of analytical tests were used to verify the presence of biochemical contamination in dried fish, as well as to propose an engineering solution to …

Role Of Grapevine Rootstocks In Mitigating Environmental Stresses: A Review, M. Mumtaz Khan, Muhammad Tahir Akram, Rashad Waseem Khan Qadri, Rashid Al-Yahyai

Journal of Agricultural and Marine Sciences

Viticulture is one of the most important crop industry in the world and its cultivation is on the upward trend globally. Global water and soil resources continue to decline sharply and rampant extreme weather conditions are making serious threat to sustainable agriculture and food security. Further, the changes in climatic conditions are increasingly becoming favorable for rearing certain harmful biotic organisms which are hostile to sustained grapes and other crop cultivation. The environmental changes have shown a projected impact on viticulture through increased biotic and abiotic stresses. Range of strategies can be employed to mitigate such scenarios, however integration of …

Antibacterial Activity And Chemical Composition Of Crude Extract And Oil Of Zygophyllum (Fagonia) Luntii (Baker) 1894 (Family Zygophyllaceae), Riaz Shah, Suad J.A. Alabri, Ameera S.M Ashehi Ashehi, Nasser S.S. Asiyabi Asiyabi, Wafa K.A. Almamari Almamari, Jamal N. Alsabahi Alsabahi, Huda Al-Ruqaishi

Journal of Agricultural and Marine Sciences

Traditionally wild plants including Zygophyllum spp., containing many bioactive constituents, are used as medicine. Zygophyllum luntii from Zygophyllaceae family is wildly grown in Oman and has been used for medical purposes. The present study investigated the antibacterial activity of the crude extracts (leaves, stem and roots) and oil (leaves) from Z. luntii. These extracts were tested against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa in well diffusion assays utilizing Muller Hinton Agar (MHA). The hydrocarbon contents and the fatty acid methyl ester (FAME) components of the extracts were also determined by GC-MS. Significant antibacterial activity was observed in the Z. …

Is Co-Management Feasible In Achieving Fisheries Sustainability? A Case Of Oman’S Lobster Fishery, Shekar Bose, Abdullah Hilal Al Balushi, Ahmed Al-Haddabi, Ruqaiya Al-Bulushi

Journal of Agricultural and Marine Sciences

Abstract: This study assesses the feasibility of co-management arrangements in managing scalloped spiny lobster (Panulirus homarus) fishery in the Sultanate of Oman. The appraisal is conducted using various indicators involving pre-implementation phase and institutional characteristics and substantiated by findings of the review of relevant local and global literature and the results of a structured questionnaire survey conducted during 9-28 June, 2013 with 536 randomly selected fishers from three Governorates namely Sharqiyah, Al-Wusta, and Dhofar. The former method helps identifying suitable assessment criteria and provides indication of readiness while the later method helps determining primary stakeholders’ perceived views on various aspects …

Effect Of Processing Methods On Consumer's Acceptability And Proximate Composition Of Yellow Croaker (Larimichthys Polyactis), Ayodeji Ahmed Ayeloja, F. O.A. George, W. A. Jimoh, S. A. Abdulsalami

Journal of Agricultural and Marine Sciences

Effect of processing methods on consumer’s acceptability and proximate composition of yellow croaker was investigated. The experiment was completely randomized design where the treatments were the various processing methods employed. 12kg frozen yellow croaker fish were purchased, cut into chunks, divided into 4 groups of 3kg each, each group was salted and then subjected to different processing methods including: sun drying, deep- frying, solar drying and smoking. After processing, the products were subjected to organoleptic assessment using hedonic scale while the proximate composition was determined using standard experimental procedures. The result of this study indicates that the odour and flavour …

Moisture And Temperature In A Proppant-Enveloped Silt Block Of A Recharge Dam Reservoir: Laboratory Experiment And 1-D Mathematical Modelling, Anvar Kacimov, Ali Al-Maktoumi, Said Al-Ismaily, Hamed Al-Busaidi

Journal of Agricultural and Marine Sciences

Mosaic 3-D cascade of parallelepiped-shaped silt blocks, which sandwich sand- lled cracks, has been discovered in the eld and tested in lab experiments. Controlled wetting-drying of these blocks, collected from a dam reservoir, mimics field ponding-desiccation conditions of the topsoil layer subject to caustic solar radiation, high temperature and wind, typical in the Batinah region of Oman. In 1-D analytical modelling of a transient Richards’ equation for vertical evaporation, the method of small perturbations is applied, assuming that the relative permeability is Avery-anov’s 3.5-power function of the moisture content and capillary pressure is a given (measured) function. A linearized advective …

Evaluation Of Some Water Saving Devices In Urban Areas: A Case Study From The Sultanate Of Oman, Hayder A. Abdel Rahman, Halima A. Al-Farsi, Mushtaque Ahmed, Matheus F. A. Goosen

Journal of Agricultural and Marine Sciences

Water Saving Devices (WSDs) sustain demands for potable water, soften impacts on supply systems and inflict a positive effect on wastewater treatment systems. This study evaluated the effect of some WSDs in Oman. A questionnaire survey and some case studies were used. The survey results revealed that the pipe line system network for water supply accounted for about 67.7%, whereas the rest mainly use tankers. Around 37.2% of the participants received consumed 25000 - 45000 liters per household per month. Case studies showed no significant difference in household water usage before and after installation of WSDs due to pre-installed aerators. …

Agricultural Resources Management Through A Linear Programming Approach: A Case Study On Productivity Optimization Of Crop-Livestock Farming Integration, Hemanatha P. W. Jayasuriya, Romy Das

Journal of Agricultural and Marine Sciences

The crop-livestock integrated farming system practiced in most developing countries depends to a greater extent on the ecosystem as a whole. The importance of animals as an agent of nutrient recycle, sources of rural energy in terms of draft power and fuel as well as major contributor of the farm economy, has resulted into increased population of ruminant stock in these regions creating threats to the sustainability and productivity of land resources. This case-study research attempted to formulate optimum herd size compatible to different resource holding farm categories within the sub watershed in mid hills region of Nepal. The research …