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136 articles for “Crystal”
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Chemical Synthesis and Industrial Applications of Catechu
Abstract: Kattha is acquired by crystallization in cold from the water extractives of the heartwood of Acacia catechu. The main constituents of the red heartwood are catechin and catechu tannic acid along with small proportion of brown coloring matter. It also contains tannin, flavotannin, gallotannin, hloratannin etc. (+)-Catechin is a constituent, which decreases the action of some hormones; hence “tyronorman” injected with thyroxin terminates the upsurge in basal metabolism. It has …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 3, Issue 2, 2017 · pp. 38–42 Read article
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Fundamentals of Mass Transfer Operations
Abstract: Mass transfer operation is one of the most important subjects in chemical engineering. It contains concepts of diffusion, mass transfer coefficient and interface mass transfer. Also important unit operations such as distillation, absorption, extraction, crystallization, drying, humidification and dehumidification are covered in mass transfer operation. We come across these unit operation in our domestic applications and day to day life. These unit operations can be intensified to improve the cost …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 6, Issue 1, 2020 · pp. 15–18 Read article
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A Study of Thermodynamics of Ligand - Receptor Interaction in Chemical Sciences
Abstract: The formation and separation of definite non-covalent interactions between varieties of macromolecules play a crucial role in the function of biological systems. During the last few years, three main lines of research led to a dramatic improvement of our understanding of these important phenomena. First, combination of genetic engineering and X ray crystallography made available a simultaneous knowledge of the precise structure and affinity of series or related ligand-receptor systems …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 3, Issue 2, 2017 · pp. 12–16 Read article
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Overview on the Thermal Properties, Geometric Structure and Recycling Process of Thermoplastic Materials.
Abstract: This study is aim to discuss the thermal properties, geometric structure and recycling process of thermoplastic materials. Also, recycling is one of the most important actions currently available to reduce the negative impact on the environment and represent one of the most dynamic areas in plastics industry today. Thermal properties, geometric structure and recycling process of thermoplastic materials deals with the properties of thermoplastics which includes: it may melt before …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 2, 2020 · pp. 20–24 Read article
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Chemical Process of Diamonds and CVD Methods
Abstract: Many times, first-order kinetics can be seen in gas-phase decomposition events. However, it is now known that such reactions are actually governed by bimolecular processes. Bimolecular collisional activation to an energy sufficient for decomposition sets off the reaction. Gas-phase processes occurring in catalytic cycles are also to blame for the development of the ozone hole in the polar stratosphere in the spring, albeit heterogeneous mechanisms must also be taken into …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 1, 2022 · pp. 12–17 Read article
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DETAILED STUDY ON THE PROPERTIES OF PLASTIC CONCRETE CUTOFF WALL MATERIALS MIXED WITH WATERPROOFING ADMIXTURES
Abstract: This study presents the results of a comprehensive experimental work performed to characterize the mechanical and hydraulic properties of plastic concrete materials added with water-resisting and crystalline admixture as Permeability Reducing Admixture for Hydrostatic conditions (PRAH). The mechanical properties, deformation, permeability nature, triaxial stress-strain curve, hydration products, phase composition, and pore structure of plastic concrete with various proportions of PRAH were investigated. In addition to that, retarding admixture was used …
Published in International Journal of Concrete Technology · Vol. 9, Issue 1, 2023 · pp. 1–15 Read article
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Ingenious Parking System based on IoT
Abstract: The internet of Things (IoT) is in a position to attach billions of devices and services at any time in anywhere, with various applications. Recently, the IoT became an emerging technology. A metropolitan city has over a million of cars on its roads but it does not have enough parking space or it is difficult to seek out a parking lot. However, this paper proposes a modern solution to such …
Published in International Journal of Broadband Cellular Communication · Vol. 7, Issue 1, 2021 · pp. 9–13 Read article
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Biometric Fingerprinting and Face Recognition Based Security System
Abstract: ABSTRACTThere are several applications of biometric and face recognition based security system like industries, offices and colleges or homes. This project is an amalgamation of “BT” and “ESD”. The most important part of this system is the fingerprint sensor. Fingerprints of the person is detected using biometric sensor to detect fingerprint. The techniques used for detecting fingerprint are ultrasonic, optical method or thermal. In this paper, fingerprint sensor is used. …
Published in International Journal of Digital Communication and Analog Signals · Vol. 6, Issue 1, 2020 Read article
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Biometric Attendance System
Abstract: An ARDUINO UNO is a microcontroller board based on the ATMEGA328. It has 14 digital input/output pins(of which 6 can be used as PWM outputs), 6 analog inputs ,a 16MHz crystal oscillator, a USB connection, a power jack , an ICSP header , and a reset button. It contains everything needed to support the microcontroller, simply connect it to computer with a USB cable or power it with an AC-to-DC …
Published in International Journal of Embedded Systems and Emerging Technologies · Vol. 3, Issue 1, 2017 · pp. 23–28 Read article
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A Brief Review on Induction heating
Abstract: Induction heating is the method of heating an electrically conducting material (usually a metal) by electromagnetic induction, through eddy currents generating heat in the object. An induction heater is an electromagnet and an electronic oscillator that passes through the electromagnet through a high-frequency alternating current (AC). The rapidly alternating magnetic field penetrates the artifact, producing the conductor's electrical currents called eddy currents. The eddy currents flow through Joule heating through …
Published in International Journal of Microelectronics and Digital integrated circuits · Vol. 5, Issue 2, 2019 · pp. 1–10 Read article
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Microwave synthesis of nanoparticles
Abstract: Synthetic exposure of material fabrication has reviewed in this article to study acceptability of treat by microwave. Competitive scheme and scope has assigned microwave assisted synthetic produce to that of convened method. Ethic has pursued for production of silver nanoparticles in ethylene glycol i.e. boiling point of 200 °C. Suggestive has pursued usage of higher temperatures and pressure accuse i.e. adoptive towards microwave reactor. Nanotechnological implement fabricate has issued to …
Published in International Journal of Microwave Engineering and Technology · Vol. 7, Issue 1, 2021 · pp. 29–34 Read article
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Green Synthesis of Silver Nanoparticles using Aqueous Leaf Extract of Artabotrys odoratissimus R.Br.
Abstract: In the present study silver nanoparticles were synthesized using the aqueous leaf extract of Artabotrys odoratissimus R.Br. as the reducing agent. The formation of silver nanoparticles was confirmed by colour change from light yellow to dark brownish red, UV-Visible Spectroscopy, FTIR, X-Ray Diffraction Method (XRD), Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray microanalysis spectroscopy (EDS). The nanoparticles showed an absorbance at 475.5nm on UV-Visible spectroscopy. Fourier Transform Infra-Red (FTIR) …
Published in International Journal of Applied Nanotechnology · Vol. 4, Issue 1, 2018 · pp. 5–11 Read article
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Porous Silicon and its Nanoparticles: A Theoretical Study
Abstract: It is very simple and cost consuming technique of fabrication of porous silicon film over silicon substrate and synthesizing the porous silicon and silicon nanoparticles. The etch reactions in RIVPSE process forms the porous structures without need of complex and expensive equipments. The luminescent porous film can be fabricated using this sample technique with any cost effecting methods such as extra energy excitation like plasma or ultraviolet photon and additional …
Published in International Journal of Applied Nanotechnology · Vol. 5, Issue 1, 2019 · pp. 14–18 Read article
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Two-dimensional MoS2 Nanosheets: Preparation and Characterization
Abstract: The amazing properties and useful applications of graphene in the field of sensors, electronics and material science opens a new challenges to other two dimensional semiconductor materials. Specially due to extraordinary electronic, mechanical and optical properties, molybdenum disulfide (MoS2) is attracting huge interest in several applications. Single layer MoS2 with direct band gap shows better semiconductor behavior such as photoluminescence, makes them more acceptable in optoelectronic applications in comparison with …
Published in International Journal of Applied Nanotechnology · Vol. 5, Issue 2, 2019 · pp. 17–25 Read article
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Value Addition of Quartz Gemstones through Gamma Irradiation
Abstract: Color enhancement of gemstones through gamma irradiation is an established technology throughout the world. By value addition, the traders earned manifold prices to these colorless stones as compared to the fresh ones. For the color enhancement of these semi-precious stones, optimized doses of irradiations are required. To get the optical properties of the stones and to investigate the crystal lattice and chemical composition, X-Ray diffraction (XRD) and energy dispersive X-ray …
Published in International Journal of Energetic Materials · Vol. 5, Issue 2, 2019 · pp. 61–67 Read article
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Optimization Process Parameters of Manganese Phosphate coating developed on En-19 Steels by Statistical Design of Experiment
Abstract: Phosphating is a chemical conversion process in which constituents of a metal surface with a view to produce thin adherent protective coating of insoluble crystalline phosphate by reaction with phosphoric acid solution. This conversion coating should have strong interfacial adhesion and porous enough. The growth of phosphate coating is influenced by method of cleaning of metal surface to be treated before treatment, use of surface activating rinses and acid or …
Published in International Journal of Metallurgy and Alloys · Vol. 2, Issue 2, 2016 · pp. 6–12 Read article
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Green synthesis of Copper nanoparticles using Ctenolepis garcini (Burm.f.) C.B Clarke.
Abstract: Copper nanoparticles, due to the excellent physical and chemical properties and low cost of preparation, have been of great interest in wide applications as heat transfer systems, antimicrobial materials, super strong materials, sensors and catalysts. The present study is a novel biological approach for the formation of copper nanoparticles using Ctenolepis garcinii (Burm.f.) C.B Clarke. Copper nitrate was made to reduce with aqueous solution of plant extract. UV-Visible spectrum showed …
Published in International journal of Nanobiotechnology · Vol. 3, Issue 2, 2017 · pp. 1–6 Read article
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Insights into the Recent Advancements in the Vibrant Area of Cubosomes Nanoparticles based Drug Delivery
Abstract: Cubosomes are square or rounded nanoparticles with internal cubic lattices that can be used. Cubosomes are a one-of-a-kind invention that spans the fields of food science, differential geometry, biological membranes, and digestion. Self-assembled cubosomes are effective drug delivery devices that have grown in popularity as a result of their discovery and nomination. Cubosomes have a honeycomb-like structure of bicontinuous water and lipid domains and are thermodynamically stable. Within the surfactant, …
Published in International journal of Nanobiotechnology · Vol. 7, Issue 1, 2021 · pp. 24–34 Read article
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NANOTECHNOLOGIES FOR THE FUTURE
Abstract: The needs of the world are growing while the sources are decreasing. The existing systems have not been able to cope up this developing situation. It is likely that with the fast increasing population will worsen this situation. All types of sciences, commerce and arts have not been able to provide the solutions to this situation so far. Nanotechnology is the new field which provides us some hope to meet …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 2, Issue 1, 2016 · pp. 35–46 Read article
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A Review on Perovskite Solar Cells
Abstract: A solar cell is a device that converts directly sunlight into electricity. crystal structure as CaTiO3 known as the perovskite structure. Perovskite solar cells are recorded with 26% efficiency with low processing cost and high stable characteristics. In this report, few problems are highlighted which is needed to be resolved for much better perovskite solar cell like toxicity, durability, cost-effectiveness. we present the lead-free perovskite light absorbers for solar cell …
Published in International Journal of Nanomaterials and Nanostructures · Vol. 3, Issue 1, 2017 · pp. 36–40 Read article