Search
1348 articles for “Metallic”
-
Investigation and Comparison of Different Action of Catalyst and Process Conditions in the Production of Chlorobenzene
Abstract: Overview on the investigation and comparison of different action of catalyst and process conditions reveals that the productions of chlorobenzenedoesnot occur naturally, Chlorobenzene is an aromatic compound with chemical formula C6H5Cl. This colorless, volatile, water-insoluble, flammable liquid with a penetrating smell of almonds is a common solvent which is gotten mostly from the chlorination of benzene and widely used intermediate in the manufacture of other chemicals. Production of chlorobenzene is …
Published in Journal of Catalyst & Catalysis · Vol. 7, Issue 2, 2020 · pp. 1–4 Read article
-
Zeolite-Y Encapsulated Copper (II) and Cobalt (II) Species as Hybrid Nano-catalysts: Structural and Catalytic Aspects
Abstract: Special properties inherent to zeolites in facilitating the construction of novel supramolecular assemblies by encapsulation of guest molecules (metal complexes) into their large cages can be utilized to use these assembled materials as novel catalysts. These modified solids have the advantages of both behaving as the homogeneous and the heterogeneous catalytic system. In the present work, copper (II) and cobalt (II) complexes of 2-amino ethanoic acid (2-AEA) encapsulated in the …
Published in Journal of Catalyst & Catalysis · Vol. 8, Issue 1, 2021 · pp. 19–32 Read article
-
Green Synthesis of Silver Nanoparticles Using Ficus Religiosa Linn Leaf Extract
Abstract: Nanotechnology is always a promising field for many new technological innovations. Turning Chemical process green also gains more attention of researchers due to high environmental concern. The process that involves ecofriendly procedures, use of less toxic solvents, less toxic byproducts, use of cheaper raw materials are all becoming ever increase in demand for current research scenario. Plants especially those having medicinal properties are beneficial for synthesizing nanoparticles as it will …
Published in Journal of Catalyst & Catalysis · Vol. 8, Issue 2, 2021 · pp. 45–52 Read article
-
Experimental Study on Compressive Strength of Ferrocement
Abstract: AbstractFerrocement construction technology is quite popular throughout the world. Ferrocement as thin material can be used as building components as well as a repair material. Ferrocement composite consists of cement-sand mortar with wire mesh to produce elements of small thickness having high durability, resilience and when properly shaped, it has high strength and rigidity. Ferrocement differs from conventional reinforced concrete or prestressed concrete primarily on the basis of nature, placing …
Published in Journal of Construction Engineering, Technology & Management · Vol. 7, Issue 3, 2017 · pp. 25–29 Read article
-
Application of flux cored arc welding (fcaw) without pre-heating for heavy structures in ship building fabrication & construction of heavy offshore structural steels
Abstract: In fusion welding processes, the reason often given to explain the need for preheating, controlling the inter pass temperature (in multi-pass welds), and post-weld heat treatment (PWHT) is to reduce the risk of residual stresses and it can be removed by heating weldment in the heat affected zone (HAZ). Cold cracking is a hydrogen embrittlement phenomenon, often referred to as hydrogen induced cracking or HAZ cracking. During the construction and …
Published in Journal of Construction Engineering, Technology & Management · Vol. 10, Issue 1, 2020 · pp. 20–28 Read article
-
Analysis and Assessment of Energy Saving in Building Construction Using Sustainable Building Materials: A Case Study
Abstract: Sustainable technology is associated with creating environment with the materials that are reproducible and would not involve materials and methods that encroach on to future needs of the society. Building materials, technologies and building practices have evolved through ages signifying quality and reliability. It is widely known that housing and building sector represents the living standards of society. Some of the building materials namely stone, mud, thatch, leaves and timber …
Published in Journal of Construction Engineering, Technology & Management · Vol. 7, Issue 1, 2017 · pp. 1–9 Read article
-
Experimental Setup for the Measurement of Low Temperature Seebeck Coefficient of Single Crystal and Bulk Materials
Abstract: A differential thermopower setup is fabricated for both the single crystal and bulk materials in the temperature range of 16–320 K. One advantage of this apparatus is that the sample separation can be changed according to the requirement between 2 and 5 mm. In this setup silver paint is used for the improvement of thermal and electrical conductivity between copper (thermocouple) leads and material. Seebeck coefficients are measured using a …
Published in Journal of Control & Instrumentation · Vol. 5, Issue 2, 2014 · pp. 25–30 Read article
-
Effect of PWHT Cycle on Microstructure and Mechanical Properties of 1.25Cr-0.5Mo Weld
Abstract: Post Weld Heat Treatment (PWHT) is a process of reducing residual stresses and enhancing material properties of any material after welding. The process depends on many parameters like type of material, the thickness of material, PWHT temperature, soaking time, heating and cooling rate, etc. The Post Weld Heat Treatment process of material could effect on tensile strength, impact toughness, hardness, microstructure, etc. If the Process of PWHT is performed incorrectly …
Published in Journal of Experimental & Applied Mechanics · Vol. 10, Issue 1, 2019 · pp. 7–16 Read article
-
Modeling and Numerical Simulation of Forged Ploughing Disc
Abstract: Forging operation is the oldest metal forming process known for producing a product of a reduced void and improved physical properties which make it suitable for manufacturing of a ploughing disc that can be applied in sticky soil, for deep plough. It can also be used safely in stony and stumpy soil without much danger of breakage. This study focuses on identifying appropriate parameters for the manufacturing of a proper …
Published in Journal of Experimental & Applied Mechanics · Vol. 10, Issue 1, 2019 · pp. 35–42 Read article
-
Development of a Flexure Mechanism for High-Precision Applications in Scanning Applications
Abstract: The utilization of the Planar XY Flexural Mechanism is extensive in precision motion systems, where it induces relative motion between a fixed support and a motion stage through the utilization of material flexibility. In contrast to rigid link mechanisms, this mechanism presents noteworthy advantages, including zero backlash, frictionless motion, and high-order repeatability, all within a considerably more compact form. Notably, flexure mechanisms are characterized by their construction from a single …
Published in Journal of Experimental & Applied Mechanics · Vol. 14, Issue 2, 2023 · pp. 1–9 Read article
-
Hybrid Solar PV–Wind Energy System: A Performance Study
Abstract: The solar PV and, wind energy hybrid technology is based on the concept of a modular, scalable, distributed renewable energy system designed and optimized for on and off grid installations. This kind of system is fully integrated hybrid system that combines wind energy units with PV technology in a compact footprint, creating the greatest energy generation density. The hybrid concept is unique and disruptive, seamlessly utilizing wind and solar energy …
Published in Journal of Electronic Design Technology · Vol. 8, Issue 1, 2017 · pp. 7–10 Read article
-
Analysis and Characterization of Circuits for Leakage Power Reduction at Sub-50 nm in CMOS Circuits
Abstract: This paper analyzes various techniques to decrease leakage power in complementary metal oxide semiconductor (CMOS) very large scale integration (VLSI) circuits, because due to continuous scaling of CMOS technology there is improvement in speed of semiconductor devices and the side effect of this scaling is leakage power. With the development of technology in CMOS VLSI Circuit, length of transistors has been reduced and speed of operation is increasing simultaneously. As …
Published in Journal of Electronic Design Technology · Vol. 13, Issue 2, 2022 · pp. 11–22 Read article
-
Conducting Polymer Based Sensors for Detection and Estimation of CO2
Abstract: AbstractCO2 is a greenhouse gas causing global warming, therefore, its detection and estimation by some smart sensors are extremely important. This review paper made an attempt to present current state of affairs on development of conducting polymer based smart sensors for detection and estimation of CO2. This is followed by a discussion on merits and demerits of spectroscopic techniques for sensing CO2. Applications of conducting polymer particularly, poly aniline (PANI), …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 10, Issue 2, 2020 · pp. 1–7 Read article
-
Identification of Groundwater Arsenic Contaminated Vulnerability Zones in Alluvial Tract of West Bengal, India
Abstract: Underground water is regarded to be free from all types of pollutants hence it is considered to be safefor drinking. Consequentially, it is a predominant source of drinking water in several parts of the worldparticularly in the developing countries. Regrettably, empirical studies have also been conducted inother parts of the World and it is found that in twenty countries the subsurface water is contaminatedwith arsenic. Serious arsenic contamination is reported …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 2, Issue 1-3, 2012 · pp. 15–26 Read article
-
Use of Advanced (i.e., Membrane) Technology for the Wastewater Treatment of Coke Ovens
Abstract: Coke plants produce gas, and coke for metallurgical purposes and also supply the raw materials for the manufacture of dyes, drugs, and high explosives. Naturally found coal is converted into coke in coke ovens. A large quantity of water is used for quenching hot coke and for washing gas. After quenching the wastewater contains high-suspended solids, high biochemical oxygen demand (BOD) (600–1300 mg/L), chemical oxygen demand (COD) (1500–3000mg/L), phenols(500–650 mg/L), …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 2, Issue 1-3, 2012 · pp. 114–126 Read article
-
Effect of Reinforcement on Bearing Capacity of Sand
Abstract: The reinforced earth concept, which is now being evaluated with increased significant encompasses formation of a composite of a soil with tension resistance reinforcing elements such as metallic and nonmetallic strips, bars, rods fibers or nets in the soil. The objective of using the reinforcement is to supress the normal tensile strains in the soil mass through frictional interaction. Flexible nature of reinforced earth mass enables it to withstand large …
Published in Journal of Geotechnical Engineering · Vol. 1, Issue 3, 2014 · pp. 8–12 Read article
-
Strength Studies of Fly Ash Stabilized with Lime and Gypsum
Abstract: An experimental study was conducted to investigate the performance of a composite derived from stabilizing fly ash with lime and gypsum. The initial part of the study examines the effect of lime (4%, 8%, and 12% by mass of dry fly ash) on compaction (in terms of density/moisture relationship) and unconfined compressive strength (UCS) of fly ash. Further the effect of adding small amount of gypsum (1%) on strength was …
Published in Journal of Geotechnical Engineering · Vol. 2, Issue 3, 2015 · pp. 10–16 Read article
-
A study to investigate the shear strength resistance of Ennore sand from conventional direct shear test.
Abstract: In this article analysis of shear strength parameters of Ennore Sand is given using the direct shear test. The shear strength parameters of cohesion and angle of shearing resistance are employed in the construction of geotechnical constructions to describe the soil's ability to sustain shear stress when subjected to a certain load. These might be measured using laboratory or field testing. When shearing a sample in a direct shear apparatus, …
Published in Journal of Geotechnical Engineering · Vol. 9, Issue 3, 2022 · pp. 19–26 Read article
-
Investigation of Mechanical Properties of Friction Stir Welded AA6063 Joints
Abstract: Friction Stir Welding is often referred as the joining technology of next generation because of its multiple advantages over the existing conventional processes. It is a solid state joining process which is free from the requirement of filler wire, consumable material, harmful gaseous emissions and also provides smooth surface with better surface finish. Moreover since no third additive material is involved hence, the microstructure of the welded joint also bears …
Published in Journal of Industrial Safety Engineering · Vol. 4, Issue 2, 2017 · pp. 1–4 Read article
-
Single Point Incremental Forming: A Review
Abstract: There are many forming processes, being used in the global market for a long time. Many conventional sheet forming processes are tedious and time taking in development and design as well. In order to solve these problems, single point incremental forming (SPIF) is introduced which is a modern method for metal sheet forming, where parts can be formed without the use of dedicated dies. In this review, forming process particularly …
Published in Journal of Industrial Safety Engineering · Vol. 3, Issue 2, 2016 · pp. 1–5 Read article