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356 articles for “SEM”
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Theoretical Analysis of GaN/AlGaN Based Quantum Well Structure
Abstract: In this paper, we have studied the GaN/AlGaN Based quantum well Structures and describe the numerical code for calculating the band structure of GaN/AlGaN quantum-well wurtzite semiconductors. We have used Luttinger Hamiltonian matrix for calculating wurtzite semiconductors. We have considered Schrodinger wave equation using finite difference method for conduction band calculation and Luttinger Hamiltonian matrix using finite-difference method is used for the calculations of the valence band structures of GaN/AlGaN …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 5, Issue 1, 2019 · pp. 39–43 Read article
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A Detailed Lumped Model for Vinyl Acetate Emulsion Polymerization
Abstract: Abstract A mathematical model was developed to simulate emulsion polymerization of vinyl acetate monomer in isothermal, batch and semi-batch reactors. The recipe components included monomer (vinyl acetate), initiator (potassium persulfate), surfactant (sodium dodecyl sulfate) and water as the dispersion medium. The two important phenomena, particle nucleation and particle growth, were modeled in adequate detail. The mechanistic details included: particle formation via micellar nucleation; coupling of the radical concentration in the …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 1, 2019 · pp. 1–12 Read article
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Predicting Water Distribution Pipe Thermal Abnormalities Caused by Wildfire
Abstract: The paper covers the temperature thermal control of the water distribution system by predicting the temperature exceeding the safe level at pipes' locations and shutting off the water access to the main distribution pipe. The advantages of predictive thermal control over setting the maximum allowed temperature are provided. The prediction uses a transient heat conduction model with an error function approximation for arbitrary distance from the surface. It is provided …
Published in International Journal of Environmental Chemistry · Vol. 11, Issue 2, 2025 · pp. 89–97 Read article
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Eco-Friendly Corrosion Inhibition of Aluminum Alloys with Acacia nilotica in Acidic Media
Abstract: Gravimetric analysis was used to examine the corrosion inhibitory effects of Acacia nilotica extract in 0.5 N H2SO4 on aluminum alloy at different concentrations and at 303 K. At a corrosion inhibitor concentration 0.45% at 303 K, the inhibition efficiency is found to be remarkably high (52.25%). Results show that the extract's capacity to inhibit was caused by its adsorption onto the metal surface via the Langmuir adsorption process. For …
Published in International Journal of Metallurgy and Alloys · Vol. 10, Issue 1, 2024 · pp. 31–37 Read article
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Evaluation of Humic Acid Content and Zinc Levels in Soil, Olive Fruit and Leaf Samples in Edremit Bay
Abstract: Edremit Bay is located on west coast of Turkey and region’s economy mainly relies on olive products. In this study, Zn(II) content of soil, olive fruit and olive leaf samples obtained from Burhaniye and Küçükkuyu in Edremit Bay were analyzed. Additionally, humic acid contents of soil samples were determined and compared with a commercial fertilizer additive. Determination of Zn(II) in mineralized samples were achieved using flame atomic absorption spectrometer. The …
Published in International Journal of Chemical Separation Technology · Vol. 1, Issue 1, 2015 · pp. 1–7 Read article
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STUDY OF VEHICLE OWNERSHIP AND EXPENDITURE ON TRANSPORTATION
Abstract: This paper presents study of limited no. of households and their expenditure on transportation. From this we can analyses that how many households expend on transportation and what are the problems they are facing on public transport and what are the facilities they required at the time of travelling. According to the income group those are having more income expend more on transportation then less income group due this those …
Published in International Journal of Transportation Engineering and Traffic System · Vol. 8, Issue 2, 2022 · pp. 1–8 Read article
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Ferromagnetism in Rare Earth Metal Doped ZnO: A Theoretical Approach
Abstract: The ferromagnetic properties of Diluted Magnetic semiconductor, Zn1−xDyxO is studied from theoretical point of view. The Heisenberg’s and Greens theorem determine the Hamiltonian of the system. The interaction between the nearest neighboring spin is determined by retarded Greens function. By using Greens theory, defect-induced ferromagnetism is discussed. For the ferromagnetic states, the expected exchange integral is positive and negative for the antiferromagnetic states. In addition, from magnetic property, the temperature …
Published in International Journal of Applied Nanotechnology · Vol. 8, Issue 1, 2022 · pp. 1–11 Read article
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Characterization and Wear Behavior of TiN, TiAlN, TiCrN and AlCrN PVD Coatings Deposited onto AISI H13 Hot Forging Die Steel
Abstract: Four Nitride coatings TiN, TiAlN, TiCrN and AlCrN were deposited onto AISI H13 hot work die steel by cathodic arc evaporation physical vapour deposition (PVD) technique. The coatings were characterized by SEM, SEM-EDS, XRD, line scan EDS and X-Ray mapping tests and micro hardness tester. The wear characteristics were investigated using a pin on disc method at high temperature and speed against En-31 bearing steel disc. It was observed that …
Published in International Journal of Metallurgy and Alloys · Vol. 4, Issue 2, 2018 · pp. 1–11 Read article
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A Review on Reduction of Scrap in Foundry by Using of Quality Control Tools
Abstract: Casting is one of the oldest manufacturing processes and is a primary manufacturing process. Products originating from castings are the input for many manufacturing processes such as forging, machining, rolling, wire drawing, extrusion, and welding. Therefore, the product made from casting should be a good quality product without defects or with minimum defects. Indeed, the quality of the products reduces as a reason of many process parameters such as molten …
Published in International Journal of Manufacturing and Materials Processing · Vol. 6, Issue 1, 2020 · pp. 6–17 Read article
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Competency in Measuring Blood Pressure among Staff Nurses
Abstract: Objective: To assess and describe the overall and area wise competency of measuring Blood pressure among Staff Nurses and find out the association of level of competency of Staff Nurses in measuring Blood pressure with selected demographic variables. Methods: Non experimental approach, descriptive study was conducted to measure the competency in measuring Blood pressure with 40 staff nurses. Convenient sampling technique was used and the data was collected by Check …
Published in International Journal of Cardiovascular Nursing · Vol. 2, Issue 2, 2016 · pp. 23–26 Read article
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Rheumatic Heart Disease - stuck in Prosthetic Valve
Abstract: Rheumatic fever (RF) and rheumatic heart disease (RHD) endure to be a main health danger in most emerging countries as well as periodically in progressive economies. The healing process of rheumatic carditis results in varying degrees of fibrosis and valve damage Elevated erythrocyte sedimentation rate (ESR) is a nonspecific evidence for an active GAS infection. It is elevated in acute RF but can be normal if the patient has congestive …
Published in International Journal of Cardiovascular Nursing · Vol. 4, Issue 1, 2018 · pp. 31–40 Read article
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Risk Assessment of Diabetes Mellitus: Finnish Diabetes Association Scale
Abstract: Objective: To identify the risk of development diabetes among patients and relatives and find out the association of risk of developing diabetes mellitus (DM) with selected demographic variables. Methods: Non-experimental approach, descriptive design was used to measure the risk of development diabetes with 63 samples. Convenient sampling technique was used and the data were collected by Finnish Diabetes Association (FDA) Scale. Result: 49.2 % of subjects had slightly elevated chance …
Published in International Journal of Cardiovascular Nursing · Vol. 6, Issue 1, 2020 · pp. 17–21 Read article
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Hypoglycemia Induced Hemichorea (HpogC): A Case Report
Abstract: Background: Hypoglycemia is a rare cause of movement disorders. An 80 year-old woman presented with worsening choreiform and dancing like movements due to hypoglycemia. Case presentation: 80 year old woman newly diagnosed hemichorea with involuntary movement of right hand and leg and her RBS and serum creatinine were 56 mg/dl and 1.85 mg/dl respectively. The patient’s Computed Tomography of brain was normal with the exception of age related atrophy. All …
Published in International Journal of Geriatric Nursing · Vol. 3, Issue 2, 2020 · pp. 1–3 Read article
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Elderly: Impacts and Concerns in Covid-19
Abstract: Every home has elderly persons, especially as hugely and densely in India. This makes the presence of elderly population in home during COVID-19 pandemic. The novel coronavirus has been found to reproduce the complications that aging brings to elderly people, and is found to be more fatal among elderly people with existing health problems. The central and state governments and the WHO are reporting that elders are more vulnerable to …
Published in International Journal of Geriatric Nursing · Vol. 3, Issue 2, 2020 · pp. 4–7 Read article
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Age discrimination attitudes of Turkish primary caregivers of older adults: A Descriptive cross-sectional study
Abstract: Background: Age discrimination is a social offshoot of the problems faced by aging people. Age discrimination encompasses positive as well as the negative attitudes. The views on aging and advanced age of primary caregivers of older adults can bias their knowledge and experiences about this age group.Objective: This study was conducted with the primary caregivers of older adults residing in the palliative care department of a hospital affiliated with a …
Published in International journal of Nursing Science Practice and Research · Vol. 7, Issue 1, 2021 · pp. 1–12 Read article
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AI-Assisted Code Generation: Integrating Natural Language Models with Compiler Frameworks for Enhanced Software Development
Abstract: The rapid evolution of Artificial Intelligence (AI) has profoundly transformed contemporary software engineering practices, particularly through the emergence of AI-assisted code generation driven by large-scale natural language models (NLMs). These models, trained on extensive repositories of source code and technical documentation, enable developers to generate, modify, refactor, and optimize source code directly from natural language instructions, thereby significantly reducing manual coding effort and accelerating overall software development cycles. By allowing …
Published in International Journal of Software Computing and Testing · Vol. 12, Issue 1, 2026 · pp. 1–7 Read article
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Digital Archives and Metadata Standards for Architectural Heritage: A Comparative Review
Abstract: Architectural heritage – including historic buildings, monuments, landscapes, and traditional urban fabric – constitutes a vital repository of cultural, aesthetic, and scientific values. Digital archiving such heritage is increasingly necessary for preservation, research, documentation, education, and public engagement. However, the effectiveness of digital archives depends vitally on the metadata standards used: the structure, semantics, interoperability, and preservation of metadata can enable or hinder access, reuse, long‐term sustainability, and meaningful comparisons …
Published in International Journal of Architectural Heritage · Vol. 8, Issue 2, 2025 · pp. 7–13 Read article
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An Analysis of the Mechanical Properties of Polyethylene Composites Reinforced with Short Vetiver Fibers
Abstract: Synthetic fibers (such as carbon, glass, ceramic fibers, etc.) are a cause of environmental concern, so natural fibers (such as vetiver, calotropis gigantea, flax, hemp, jute, etc.) are extensively used. In this study, the compression molding process was used to improve low-density polyethylene (LDPE) matrix composites reinforced with vetiver fiber (VF). Experiments were conducted by varying VF length, VF content, and fiber treatment time. The composites' static mechanical characteristics, including …
Published in International Journal of Composite Materials and Matrices · Vol. 11, Issue 1, 2025 · pp. 1–13 Read article
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Investigating Postnatal Depression and “Baby Blues” in New Mothers at a Selected Maternity Hospital
Abstract: Background: The postpartum period is marked by significant physical and emotional transitions that can lead to feelings of anxiety and mood swings. Postpartum mood disturbances can be categorized into three levels of severity. Symptoms commonly associated with these disorders include feelings of hopelessness, sadness, nausea, alterations in sleep and appetite, reduced sexual interest, frequent crying, anxiety, irritability, a sense of isolation, emotional volatility, thoughts of self-harm or harming the infant, …
Published in International Journal of Nursing Critical Care · Vol. 10, Issue 1, 2024 · pp. 6–10 Read article
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Analytical Profiling of Processed Printer Inks on Papers for Inorganic Trace Elements by Energy Dispersive X-Ray Microanalysis
Abstract: For the forensic examination of printed documents, an attempt has been made to determine the elemental composition of inks of ink jet printer taken from sample documents using nondestructive technique of Scanning Electron Microscope-Energy Dispersive X-Ray Spectrometry and in order to generate the analytical profiling of printed inks for inorganic trace elements leading to the differentiation of printers. All the four primary inks used in printers are the matrix of …
Published in International Journal of Analytical and Applied Chemistry · Vol. 6, Issue 1, 2020 · pp. 5–13 Read article