Search
192 articles for “COD”
-
Effects of Compressor Pressure Ratio and Combustion Chamber Exhaust Gases Temperatures on Gas Turbine Cycle Performance
Abstract: Today, we are seeing an increasing share of gas power plants in the production and supply of electricity therefore, it is essential to know the impact of different factors on the performance of these plants.The main purpose of this study is to investigate the effect of different parameters such as compressor pressure ratio and temperature of the combustion chamber on the performance of gas turbines .First, the thermodynamic relationships governing …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 6, Issue 1, 2020 · pp. 1–6 Read article
-
3D Stress State Dependent Failure Model for Fracture Simulations
Abstract: The state of stress is defined by triaxiality (hydrostatic pressure) and the lode angle parameter (deviatoric stress third invariant). The stress state not only varies with different kinds of loading but also with the location of the stress concentration, geometry of specimen and deformation. The LS-DYNA implementation of a strain-based, stress state dependent failure criterion for a ductile material is investigated through simulations of standard experiments in this paper. A …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 1, 2016 · pp. 44–65 Read article
-
Analytical Computation and Finite Element Analysis of Failure Criterion of a Composite Hollow Driveshaft Under Torsion
Abstract: ABSTRACT Drive shafts for power transmission are used in many applications, including machine tool, cooling towers, pumping sets, aerospace, and automobiles. In the metallic shaft design, the size of the shaft’s cross-section can be determined by the value of torque and the allowable shear stress of the material. There has been extensive work on the design of hollow composite drive shaft as per the literature survey. Many have focused on …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 3, Issue 2, 2017 · pp. 1–14 Read article
-
Design Optimization of Water Injection Module of Topside Facility of an FPSO
Abstract: Analysis, design and construction of offshores structures are the most challenging tasks in the field of ocean engineering. This work presents a method of designing topside facility of an FPSO by considering all possible environmental loading along with the loading during transportation, lifting and placing. Of all the loads wave loading is the most prominent which has been estimated using a 3D computational fluid dynamics code based on finite volume …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 4, Issue 1, 2018 · pp. 1–14 Read article
-
Analytical Modeling of Brick–Mortar Couplet
Abstract: This paper is a presentation of the finite element modeling of stress in a brick–mortar couplet. The brick–mortar couplet here serves as a meaningful substitute for a brick wall structure. In this work, the basic steps in derivation of the element stiffness matrix for a plane stress problem using the displacement approach are presented. The main purpose in the work is to verify the nodal displacements, which in turn would …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 6, Issue 1, 2020 · pp. 5–13 Read article
-
Numerical Analysis of Energy Absorption Ability of Polygonal Tubes under Crushing
Abstract: Honeycomb panels are used mostly in energy absorption application in engineering fields such as aerospace, transportation and packaging, etc. Honeycomb panels have good stiffness and are weight efficient structures. The honeycomb core consists of cellular cells. The core cell’s geometry of honeycomb affects the energy absorption ability. In this study, the different geometries of individual cell are analysed in tube form. Tubes of different geometries like square, pentagon, hexagon, octagon, …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 7, Issue 1, 2021 · pp. 22–30 Read article
-
Sub-structure Geometry Effect on Energy Absorption Ability of Hierarchical Honeycomb under Crushing
Abstract: Honeycomb structures are stiff and light weight composite structures which show good energy absorption. Hierarchical honeycomb structures which are bio-inspired innovative form of honeycomb structure, are used for energy absorption applications. The crashworthiness of hierarchical honeycomb structures is function of sub-structure geometry. In the present investigation, crushing of vertex based hierarchical honeycomb with regular polygonal (n=3, 6, 9, 12, 15) and circular substructures is analysed using nonlinear explicit finite element …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 7, Issue 2, 2021 · pp. 1–17 Read article
-
A Quasi-experimental Study to Assess the Effectiveness of Cognitive Stimulation Therapy on Cognition among the Institutionalized Elderly in Selected Old Age Homes at Madurai
Abstract: Background of the Study: The aging population is increasing significantly in the world. Therefore,world population is expected to be comprised of progressively bigger proportion of elderlyindividuals. Human aging is an inevitable process and, as such, implies a process of transformationand progressive change in biological, psychological and social structure. The cognitive functionbegins to deteriorate with advancing age and there are common consequences to variouspsychological and social aspects, such as the loss …
Published in International Journal of Geriatric Nursing · Vol. 4, Issue 2, 2021 · pp. 12–21 Read article
-
Buerger-Allen Exercise on Foot Perfusion among Patients with Diabetes Mellitus
Abstract: Background of the study: Diabetes Mellitus (DM) is a metabolic disorder which is characterized withincreased glucose level in the blood, resulting from defect in the insulin secretion, insulin action, orboth. In advance stage of the disease, foot perfusion of patients is decreased. It can be assessed byAnkle Brachial Index (ABI), Capillary Refill Time (CRT) and Peripheral pulse rate. Buerger-Allenexercise is an effective intervention for improving the foot perfusion of diabetes …
Published in International Journal of Geriatric Nursing · Vol. 4, Issue 2, 2021 · pp. 27–33 Read article
-
Impact of Diabetic Risk Reduction Package on Life Style and Biophysiological Measures
Abstract: Background: Prediabetes is defined as impaired fasting glucose or impaired glucose tolerance with fasting blood glucose 100–125 mg/dl. Prediabetes is considered as a distinct entity under the classification of ICD-10 with diagnostic code R73-09. It is a reversible condition projecting the last window opportunity against impeding diabetes. Diabetes can be considerably overcome through simple and safe measures to promote health and prevent development of diabetes from prediabetes. Aim: The study …
Published in International Journal of Immunological Nursing · Vol. 3, Issue 2, 2017 · pp. 17–23 Read article
-
Prevalence and Associated factors of Antiepileptic Drug Non-Adherence among Epileptic Patients Attending at outpatient Department of Hiwot Fana Specialized University Hospital, Harar, Eastern Ethiopia
Abstract: Background: Antiepileptic drugs were effective in the treatment of epilepsy, but non-adherence to medication was major problem to sustained remission and to functional restoration, non-adherence of epileptic patients to antiepileptic medication was one of many reasons for pharmacological treatment failure, death, increased heath care costs and seizure recurrence. Even though there were studies on the magnitude and associated factors of antiepileptic drugs non-adherence, there was a shortage of published information …
Published in International Journal of Neurological Nursing · Vol. 5, Issue 1, 2019 · pp. 63–90 Read article
-
Professional Etiquettes during Pandemic
Abstract: The word "etiquette" is equal to the French word "estique", which means to attach. These etiquettes are the requirements of behaviors which are the conventions of the society. These are also known as “the rules indicating the proper and polite way to behave”. It creates a professional, mutually respectful atmosphere and improves communication. All over the world, the professionals are permitted to work in safe and healthy environments despite the …
Published in International journal of Nursing Science Practice and Research · Vol. 7, Issue 2, 2021 · pp. 14–21 Read article