Search
100 articles for “defects”
-
Eisenmenger Syndrome: A Critic Review
Abstract: Eisenmenger's syndrome is congenital heart defect, which is also called as, Eisenmenger's reaction, Eisenmenger physiology, and also tardive cyanosis. This condition abbreviated as ES. this condition characterized by long-standing left-to-right cardiac shunt caused by a congenital heart defect typically by a ventricular septal defect, atrial septal defect, and patent ductus arteriosus which result in pulmonary hypertension. This condition is more common among people getting marriage among their family members or …
Published in International Journal of Obstetrics, Perinatal and Neonatal Nursing · Vol. 5, Issue 2, 2019 · pp. 6–13 Read article
-
Advances in the Synthesis and Functional Applications of Crystalline Materials
Abstract: Crystalline materials represent one of the most important classes of advanced materials in modern science and engineering due to their highly ordered atomic arrangements and outstanding physical, chemical, electrical, optical, thermal, and mechanical properties. The periodic organization of atoms within crystal lattices provides exceptional opportunities for controlling and optimizing material performance through advanced synthesis strategies, crystal growth techniques, compositional modification, and defect engineering. Recent progress in materials science has enabled …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 12, Issue 2, 2026 Read article
-
Cognitive Metallurgy: A Study on Microstructure and Energy Efficiency in High-Temperature Alloying via Sensor Fusion and Deep Reinforcement Learning
Abstract: Background Traditional high-temperature metallurgical processes, such as continuous casting and specialty alloy synthesis, are characterized by high energy consumption, stochastic variability, and reliance on post-process defect inspection. The inability to precisely monitor, model, and predict the real-time thermal, chemical, and mechanical state of molten metal and cooling substrates results in significant material waste and inconsistent microstructural integrity. Methodology This study introduces a novel framework for Cognitive Metallurgy utilizing an integrated …
Published in International Journal of Metallurgy and Alloys · Vol. 11, Issue 2, 2025 · pp. 27–36 Read article
-
Approaches to Transmission Line Fault Detection Utilizing GPS: An Overview
Abstract: Transmission line protection is essential since 80–86% of power system issues are related to transmission lines. This study suggests a way to classify and identify different types of short circuit faults on transmission lines. There are several operating and fault conditions on high-voltage line transmission, such as L-L fault, single phase to earth fault, and double line fault. Proteus Professional 8 software simulates three fault scenarios: triple line fault, triple …
Published in International Journal of Microwave Engineering and Technology · Vol. 10, Issue 1, 2024 · pp. 33–42 Read article
-
Use of PARP Inhibitor in Cancer Cell Progression
Abstract: DNA damage response (DDR) is the cellular mechanism plays specific role of repairing during genotoxic injuries through specific mechanism of action. The DDR defects involve genomic instability and enhance tumor progression but when molecular alterations occurs in the cells become more susceptible to the pharmacological inhibition of the DNA repairing enzymes.Targeting cellular proteins like poly-ADP-ribose polymerase (PARPs) alters protein structure and function and favors molecular defects of the DDR process …
Published in International Journal of Animal Biotechnology and Applications · Vol. 4, Issue 2, 2018 · pp. 24–35 Read article
-
Study and Simulation of Radiation Effects on MOS Structures through High Energy Ions
Abstract: MOS structures exposed to 305 MeV Kr and 710 MeV Bi ions irradiation with fluences of 109 cm 2 and 1010 cm 2 were investigated by capacitance measuring methods (C–V, C–t), completed by quasistatic low-frequency C–V and DLTS measurements. The irradiated MOS structures were functional in spite of a high density of radiation defects. The electric activity of the defects brought a sharp decrease in the generation parameters tr and …
Published in International Journal of Applied Nanotechnology · Vol. 3, Issue 2, 2017 · pp. 40–46 Read article
-
COMPLICATIONS IN THE DESIGN AND FABRICATION OF TI6AL4V MICRO- LATTICE STRUCTURES FOR ADDITIVE MANUFACTURING
Abstract: This research paper investigates several obstacles and concerns related to metal additive manufacturing (AM) components to improve the quality of the parts by recommending and implementing appropriate corrective measures. Titanium alloy cellular structures are in high demand for many uses, such as lightweight medical devices, aeroplanes, vehicles, and heat exchangers. This study investigates the manufacturability and performance of Ti6Al4V micro-lattice structures (MLSs) fabricated by Direct Metal Laser Sintering (DMLS). By …
Published in International journal of Nanobiotechnology · Vol. 8, Issue 2, 2022 · pp. 21–30 Read article
-
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
-
Analytical Study of Ceramic Compositions: Lamination and Fracture Toughness
Abstract: This study investigates the characteristics and fabrication techniques of laminated ceramic composites, focusing on various glass-ceramic systems, including alumina, BaTiO3/Al2O3, and LiO2‐ZrO2‐SiO2‐Al2O3 (LZSA). The inherent brittleness of ceramics, attributed to surface flaws and their limited toughness, necessitates the development of layered structures to enhance mechanical reliability. Layered ceramics demonstrate improved fracture toughness, crucial for applications in aerospace, biomedicine, and military armor. Techniques such as tape casting, electrophoretic deposition, and advanced …
Published in International Journal of Analytical and Applied Chemistry · Vol. 10, Issue 2, 2024 · pp. 38–44 Read article
-
Mechanical Behavior of Calotropis Gigantea FruitBunch Fiber-Epoxy Composites
Abstract: Global warming solutions in the modern era are centered on substituting environmentally friendly biodegradable materials for fossil fuels to slow down the rate at which they are being depleted. The study literature supports the use of substitute materials for plastics in the creation of composite materials, and this work envisions the use of Calotropis gigantea fruit bunch fiber as one such substitute material. Since Calotropis gigantea fruit bunch fiber is …
Published in International Journal of Composite Materials and Matrices · Vol. 10, Issue 2, 2024 · pp. 45–58 Read article
-
Experimental Study on Effects of Moisture and Clay Content on the Properties of Moulding Sand
Abstract: Sand casting, a time- honoured technique for casting both ferrous and nonferrous metals, remains widely utilized due to its cost-effectiveness, material abundance, and reusability, particularly with sand as a primary resource. This study delves into the intricate dynamics of sand casting, examining its crucial parameters through meticulous analysis of existing research. The investigation focuses on the influence of factors such as sand composition, moisture levels, clay content, and binder type …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 10, Issue 1, 2024 · pp. 16–25 Read article
-
DESIGN AND ANALYSIS OF ITERATED STAR SHAPED STAR SLOTTED FRACTAL ANTENNA
Abstract: In this paper, A Novel star shaped iterated fractal antenna with circular slot in midway is proposed. Proposed antenna is very small in size and ground of antenna also defected by cutting approximately half PEC material. In this proposed antenna number of iterations has been applied. This proposed Antenna is simulated by CST-MWS (Computer Simulation Technology – Microwave Studio) and different simulated results are analyzed. The self similarity property of …
Published in International Journal of Microwave Engineering and Technology · Vol. 1, Issue 2, 2015 · pp. 1–6 Read article
-
Analysis and Design of Frequency and Gain of Dual Band Equilateral Triangular Microstrip Patch Antenna with DGS Using ANN
Abstract: A Dual-frequency equilateral triangular microstrip patch antenna using defected ground structure of c-band and s-band with enhanced gain has been designed with frequency of 2.82 GHz and 5.19GHz. The design and simulation of antenna is performed by CST.We have analyzed that after insertion of DGS(Defected Ground Structure) in equilateral triangular microstrip patch antenna presents marked improvement in gain. Artifical neural network is used in computation of frequency of equilateral triangular …
Published in International Journal of Microwave Engineering and Technology · Vol. 3, Issue 2, 2017 · pp. 19–31 Read article
-
Dual Substrate Shorted Microstrip Patch Antenna for Bandwidth Enhancement and RF Energy Harvesting Application
Abstract: ABSTRACT In this study, a dual substrate shorted microstrip patch antenna is designed for RF Energy Harvesting Application. The proposed antenna covers signals between 2200-2300 MHz frequencies, area of the proposed antenna is compact. The proposed dual substrate patch antenna is loaded on FR-4 lossy substrate with thickness of 1.6 mm. The defected ground structure with square slots and increasing the height of the substrate are used for increasing the …
Published in International Journal of Microwave Engineering and Technology · Vol. 4, Issue 2, 2018 · pp. 1–5 Read article
-
A Close-Packed Tri-Band Multi- Input Multi- Output Antenna System With DGS
Abstract: ABSTRACTIn this manuscript, A Close-packed tri-band multi input multi output antenna system with defective Ground structure for Electronic countermeasure application is proposed. Two monopoles are placed on the one end of the PCB and spaced 10mm apart. Near field of two identical monopoles creates mutual coupling that is reduced by placing metal strip (2x19) mm2 on the ground plane. The Projected Wang-formed DGS (Defective Ground Structure) of size (20x16) mm2 …
Published in International Journal of Microwave Engineering and Technology · Vol. 5, Issue 2, 2019 · pp. 1–7 Read article
-
METALLURGY OF INVESTMENT CASTING TECHNOLOGY
Abstract: Investment casting is the most widely used process for several centuries, known as ‘lost wax casting’ or ‘precision casting’. This process is known to produce complex castings with good surface finish and dimensional accuracy. Poor quality of castings is always marked by inadequate surface finish, hardness and excessive shrinkage of the wax pattern. This review paper discusses on the history of investment casting technology, its processing techniques and parameters, casting …
Published in International Journal of Metallurgy and Alloys · Vol. 1, Issue 1, 2015 · pp. 1–14 Read article
-
Plastics Product Design and Analysis
Abstract: Product design of a commonly used articles like key-chains is to make it more attractive, user friendly, cost effective yet durable and providing longevity. Therefore, this work deals with the designing of optimized 3D model of key-chain if suitable shape and size and doing its analysis in Moldflow analysis software to study the material flow behaviour, impact of processing parameters on the product and possible defects after one complete cycle …
Published in International Journal of Polymer Science and Engineering · Vol. 2, Issue 2, 2016 · pp. 31–34 Read article
-
FE Modelling and Analysis of Mixed Mode Delamination in Composite Laminates
Abstract: A composite is a structural material that consists of two or more constituents combined at a macroscopic level and not soluble in each other. The advantages of composites over conventional materials are its light weight, high strength, design flexibility, dimensional stability, etc. Although Composite materials are advantageous than conventional materials, there are some defects in composite materials too, which are Fibre-matrix debonding, fibre misalignment, Delamination, Matrix cracking, Impact damage, etc. …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 4, Issue 2, 2018 · pp. 31–57 Read article
-
Rubella and Pregnancy
Abstract: Mainly, Rubella infection during pregnancy is considered as a serious infection worldwide. Since Rubella virus not only infects Mainly, rubella infection during pregnancy is considered as a serious infection worldwide. Since rubella virus not only infects susceptible to women early in pregnancy, they can also be transmitted to the fetus and might induce birth defect. Rubella is an acute, contagious viral infection. While rubella virus infection usually causes a mild …
Published in International Journal of Obstetrics, Perinatal and Neonatal Nursing · Vol. 4, Issue 2, 2018 · pp. 57–60 Read article
-
Fault-Tolerant Modular Power Converter for Large-Scale Renewable Energy Integration
Abstract: The rapid expansion of large-scale renewable energy systems has significantly increased the demand for highly reliable and fault-resilient power electronic converters capable of maintaining stable grid operation under component failures and fluctuating renewable power generation. This paper proposes a Fault-Tolerant Modular Power Converter (FTMPC) for large-scale renewable energy integration, incorporating a modular multilevel architecture, intelligent fault diagnosis, and adaptive reconfiguration control to ensure uninterrupted power conversion. The proposed converter continuously …
Published in International Journal of Power Electronics Controllers and Converters · Vol. 12, Issue 2, 2026 Read article