تصفح حسب العنوان
السجلات المعروضة 2781 -- 2800 من 48376
-
Application of response surface methodology and box-behnken design for the optimization of the stability of fibrous dispersion used in drilling and completion operations
( American Chemical Society , 2021 , Article)Fibers are extensively used as a fluid additive in the oil and gas industry to improve hole-cleaning performance, control fluid filtration loss, and enhance hydraulic fracturing effectiveness. Generally, a small amount of ... -
Application of Samarium- and Terbium-Sensitized Luminescence via a Multivariate-Based Approach for the Determination of Orbifloxacin
( Hindawi , 2022 , Article)A lanthanide-based optical sensor has been developed for the sensitive and reliable spectrofluorometric determination of the fluoroquinolone antibiotic orbifloxacin (ORLX). Reaction of ORLX and two lanthanide metal ions, ... -
Application of scanning electron microscopy and MALDI-TOF MS in the exploration of the parasporal insecticidal crystals of Bacillus thuringiensis strains isolated from Qatar soil
( Elsevier Ltd , 2022 , Article)Bacillus thuringiensis (Bt) plays an important role in health and agriculture due to its insecticidal activities. In this study, six Bt strains isolated from Qatar soil were used to explore their crystals morphologies and ... -
Application of solar PV in the building sector: Prospects and barriers in the GCC region
( Elsevier , 2023 , Article)Solar Photovoltaic (PV) can make a significant contribution towards reducing the energy and environmental footprint of buildings. Helped by features like scalability, ease of use, and declining price, PV has become the ... -
Application of Standard Three-Phase Stator Frames in Prime Phase Order Multiphase Machine Construction
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)The application of multiphase machines in high-power applications is now a recognized alternative, thanks to their higher fault-Tolerance when compared with standard three-phase systems. Although multiphase machines with ... -
Application of statistical experimental design for optimisation of bioinsecticides production by sporeless Bacillus thuringiensis strain on cheap medium
( Sociedade Brasileira de Microbiologia - SBM , 2014 , Article)In order to overproduce bioinsecticides production by a sporeless Bacillus thuringiensis strain, an optimal composition of a cheap medium was defined using a response surface methodology. In a first step, a Plackett-Burman ... -
Application of statistical experimental design for optimisation of bioinsecticides production by sporeless Bacillus thuringiensis strain on cheap medium
(2013 , Article)In order to overproduce bioinsecticides production by a sporeless Bacillus thuringiensis strain, an optimal composition of a cheap medium was defined using a response surface methodology. In a first step, a Plackett-Burman ... -
Application of stator shifting to five-phase fractional-slot concentrated winding interior permanent magnet synchronous machine
( Institution of Engineering and Technology , 2016 , Article)In many applications, interior permanent magnet synchronous machines (IPMSMs) with fractional slot concentrated windings (FSCWs) are considered promising candidates in terms of higher power density and efficiency. In ... -
APPLICATION OF STEEL REINFORCED COMPOSITES FOR STRENGTHENING OF REINFORCED CONCRETE BEAMS AND COLUMNS: EXPERIMENTAL, ANALYTICAL, NUMERICAL, AND MACHINE LEARNING BASED STUDIES
(06-2 , Dissertation)The use of steel reinforced composites (SRC) has emerged as a cost-effective and promising solution for the strengthening of reinforced concrete (RC) structures. The strengthening system in SRC comprises a unidirectional ... -
Application of Stripping Voltammetry for the Determination of Cadmium, Lead, Copper and Zinc in Yemani soils and Vegetables
( Qatar University , 2004 , Article)Heavy metals contents in the solutions from acid digestion of Yemeni soils and vegetables were deter¬mined by differential pulsed anodic stripping voltammetry. The geometric mean for Cd, Pb, Cu and Zn concentrations for ... -
Application of the Forward Modelling of Sequence Stratigraphy & Diagenesis to The Upper Cretaceous Carbonates Of Western Iraq
( Qatar University , 2000 , Article)Dynamic forward modelling of carbonate diagenesis and sequence stratigraphy relies on the understanding of the different process which provide a high resolution prediction of the geometry of porous and permeable zones ... -
Application of the model predictive control and the SVPWM techniques on five-phase inverter
( ICPE Electra Publishing House , 2019 , Article)The multi-phase inverters have attracted recently much attention among the researchers, practitioners and industries due to their many advantages compared to their conventional count parts of single and three-phase inverters, ... -
Application of the resistivity method to study ground water potentialities on a part of the entrance of wadi el-assiuti, Eastern desert, Egypt
( Qatar University , 1993 , Article)Wadi El-Assiuti is located east of Assiut city and extends in almost northeast direction. The entrance of the wadi is suitable site for reclamation and city planning projects. Consequently, it is very important to study ... -
Application of titanium nanoparticles containing natural compounds in cutaneous wound healing
( Wiley , 2020 , Article)© 2020 John Wiley & Sons, Ltd. The aim of the study was the rapid green synthesis of titanium nanoparticles using the aqueous extract of Falcaria vulgaris leaves (TiNPs@FV) and exploring their antioxidant, cytotoxicity, ... -
Application of Tools of Quality Function Deployment and Modified Balanced Scorecard for Optimal Allocation of Pavement Management Resources
( Institute of Electrical and Electronics Engineers Inc. (IEEE) , 2020 , Article)Pavement management is a set of tools used to evaluate and maintain pavements so that the pavements can be used safely and effectively over a certain period. Many traditional methods were and are still being used by entities ... -
Application of Unsupervised Machine Learning Classification for the Analysis of Driver Behavior in Work Zones in the State of Qatar
( Elsevier , 2022 , Article)Work zone areas are commonly known as crash-prone areas. Thus, they usually receive high priority by road operators as drivers and workers have higher chances of being involved in road crashes. The paper aims to investigate ... -
Application of value stream mapping (VSM) for lean and cycle time reduction in complex production environments: a case study
( Taylor and Francis Ltd. , 2017 , Article)The application of VSM is a proven approach for lean-based improvements. Typically, this becomes challenging, when applied for complex production environments. The purpose of this research is to demonstrate, how with some ... -
Application of value stream mapping for improvement of efficiency in purchasing process for a chemical company in Qatar
(2021 , Professional Masters Project)Lean management methods have been used to improve productivity and performance in organizations. As one of the lean management methods, value stream mapping (VSM) uses the process flow map to analyze current processes so ... -
Application of various water soluble polymers in gas hydrate inhibition
( Elsevier Ltd , 2016 , Article Review)Formation of hydrates in gas transmission lines due to high pressures and low temperatures is a serious problem in the oil and gas industry with potential hazards and/or economic losses. Kinetic hydrate inhibitors are water ... -
Application of Vehicle Restraint Systems (VRSs) in the State of Qatar: A Case Study from Northern Roads
( Qatar Univesrity Press , 2020 , Conference Paper)Recent developments within Infrastructural Road Safety and especially in the Sector of Vehicle Restraint Systems (VRS) have enabled Transport Authorities to significantly reduce road fatalities and severe injuries. ...
