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1992 articles for “Keywords”
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A Model to Study the Effect of Homogeneous Nucleation and Emulsifier Amounts on Methyl Methacrylate Emulsion Polymerization in a Seeded Semi-batch Reactor
Abstract: ABSTRACTAn extensive model is developed for methyl methacrylate emulsion polymerization. The assumption of monodispersed particle size distribution is used in developing the model. It is found that inclusion of homogeneous nucleation in the model leads to under prediction of variation of conversion with time. The effects of three different emulsifier amounts on the variation of conversion with time at 50°C isothermal reactor operation, keeping all the other ingredients constant are …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 2, 2019 · pp. 9–17 Read article
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A Critical Evaluation of Polypropylene Impact Copolymer Morphology
Abstract: In order to improve Polypropylene (PP) impact strength, the process of copolymerizing propylene with ethylene is being used. Polypropylene copolymer is essentially a rubber-toughened material consisting of polypropylene homo-polymer matrix in which ethylene-propylene rubber (EPR) is distributed. The overall impact behavior of the copolymer is solely controlled by the rubber morphology and its distribution in polypropylene matrix, which plays a critical role on crystallinity. Even a similar impact grade polypropylene …
Published in International Journal of Polymer Science and Engineering · Vol. 5, Issue 2, 2019 · pp. 1–8 Read article
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Cords of tyres to shed hybridization
Abstract: AbstractCords of tyres have descriptive issues for mechanical stability, break at elongation strength and dimensions. Two polymer reinforced cord form has lying usage from nylon and polyester to search respects for hybridized contributed formation after form from chords. Poly(ethylene naphthalate)-in-polyester yarn or aramid-in-nylonhybrid has provisioned steel cord substitution to raise steer-in-speed at subjective low-in-weight shed. Competencies among as routed fabrics under differential twisting has almost similar break-in-twist strengths as well …
Published in International Journal of Polymer Science and Engineering · Vol. 6, Issue 2, 2020 · pp. 5–11 Read article
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Ergonomic analysis of Wood Cutting Activity in Traditional Aara Machine with regard to Operator’s Comfort
Abstract: Abstract The paper deals with the field data study using the sample survey for productivity enhancement and ergonomic improvement of manual aara machine activity. The domestic and industrial use of wooden products is prevalent since many decades and centuries. The wood obtained by cutting trees is in irregular shape and size. The Saw mills popularly termed as Aara Machine are used to convert the raw wood logs into perfectly size …
Published in International Journal of Mechanics and Design · Vol. 2, Issue 2, 2016 · pp. 43–46 Read article
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Design and Analysis of Ergonomic Transport Friendly Collapsible Executive Office Chair
Abstract: Now a day’s office chairs are frequently used in all IT companies and industries. They are more in demand products of office furniture but are specifically designed for use in indoor workstation (or work area). It is difficult to transport from one place to another, as it is not collapsible and occupies large space in the working area as well as on the trucks. Therefore, to avoid this difficulty, design …
Published in International Journal of Mechanics and Design · Vol. 2, Issue 1, 2016 · pp. 01–07 Read article
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Experimental Investigation And Optimization Of Process Parameters For Thrust Force, Power Consumption And Energy Consumption During Drilling Of Mild Steel On Lathe Machine
Abstract: Drilling is one of the major operations to be carried out in almost every manufacturing industry. During this operation drilling tool drills the metal continuously which increases thrust force. Due to this force, power consumed during drilling operation. So in this research work an attempt to experimentally investigate and then optimization of the effect of different drill parameter like feed and spindle speed on the thrust force, power consumption and …
Published in International Journal of Mechanics and Design · Vol. 2, Issue 1, 2016 · pp. 08–19 Read article
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Risk Assessment Using WRAC Tool in a Manufacturing Industry
Abstract: Keeping up a safe workplace is one of the imperative obligations of the management according to labour laws and to ensure the resources. The different sources of hazard in the workplace have a tendency to make harm to the workers, hardware and even the operations. Occupational Risk assessment is a process of identifying the occupational hazards that affect the workers and take steps to eliminate or control the hazards various …
Published in International Journal of Manufacturing and Materials Processing · Vol. 2, Issue 2, 2016 · pp. 27–32 Read article
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A Comprehensive Study On Optimization Of Neural Networks And Global Minimization
Abstract: The neural network toolbox is one of the commonly used, powerful, commercially available software tools for the constructing new networks and forms a inter linkage between each other. The software is user-friendly, permits flexibility and convenience in interfacing with other toolboxes in the same environment to develop a full application the wide range of applications and has a wide range of scope in making models with linear and non-linear functionalities …
Published in International Journal of Manufacturing and Materials Processing · Vol. 2, Issue 1, 2016 · pp. 11–18 Read article
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Review of Optimization Process Parameters in Welding system
Abstract: This study was based on design of experiment (DOE) using Taguchi method with four welding parameters namely welding current, welding speed, root gap and electrode angle considered for experimentation. An orthogonal array of L9 experimental design was adopted and ultimate tensile strength was investigated for each experimental run. The tensile test was carried out on extracted welded and unwelded specimens using universal testing machine (UTM). Microstructures of the welded specimens …
Published in International Journal of Manufacturing and Materials Processing · Vol. 2, Issue 1, 2016 · pp. 48–54 Read article
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Productivity improvement in a four wheeler seat manufacturing industry using lean techniques
Abstract: The automotive industry has been experiencing a competitive environment and striving hard to find methods to reduce manufacturing cost, waste and improve quality. Lean manufacturing concepts are used by the industries to reduce work in progress inventories and also to reduce the waste for competing in the global market. The ultimate goal is to speed up the process there by increasing productivity through a proper utilization of man and machine. …
Published in International Journal of Manufacturing and Materials Processing · Vol. 2, Issue 1, 2016 · pp. 19–27 Read article
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Risk Assessment And Analysis In A Chemical Industry
Abstract: Chemical manufacturing sector in India is well established and has recorded a steady growth in the overall industrial scenario .The chemical and the allied industries are among the faster growing segments of Indian industry. The risks associated with the chemical industry are commensurate with their growth. Apart from their utility, chemicals have their own inherent properties and hazards like flammable, explosive, toxic or corrosive etc. Several major accidents had occurred …
Published in International Journal of Manufacturing and Materials Processing · Vol. 2, Issue 1, 2016 · pp. 57–64 Read article
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Effect of Cutting Parameters in Hard Turning on Chip Formation and Machined Surface
Abstract: Cost effectiveness, increasing demand, high production rates and reliability of the product have increased the potential of industrial application of hard turning technology during the past few years. Grinding operation for hard steel component reduces the machining sequence, the machining time and the specific cutting energy. Hard turning also shows effects like generation of high temperature, the formation of saw toothed chips. In this thesis, experimental investigation is conducted in …
Published in International Journal of Manufacturing and Materials Processing · Vol. 2, Issue 1, 2016 · pp. 28–47 Read article
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Optimizing Work Scheduling In Shop Floor Using Ant-Colony Algorithm
Abstract: A job shop manufacturing system is specifically designed to simultaneously produce different types of products in a shop floor. Job shop scheduling problems (JSSPs) have been studied extensively and most instances of JSSP are NP-hard, which implies that there is no polynomial time algorithm to solve them. As a result, many approximation methods have been explored to find near-optimal solutions within reasonable computational efforts. Furthermore, in a real world, JSSP …
Published in International Journal of Computer Aided Manufacturing · Vol. 1, Issue 1, 2016 · pp. 19–28 Read article
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Review Paper on Thermal Analysis of Non-Vented (solid) Disc Brake using Ansys Software
Abstract: The disc brakes are exposed to large thermal stresses and heat during routine braking. The extraordinary thermal stresses, tremendous heat occurred in the disc during hard braking. The aim of the project or research work is to design and analysis of disc. The modelling or design of the disc is done using solid works software. The Thermal analysis is to be done on the Non-vented disc brakes using ANSYS software …
Published in International Journal of Computer Aided Manufacturing · Vol. 1, Issue 1, 2016 · pp. 01–06 Read article
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Review on HSM of Titanium Alloys in Aerospace Industry
Abstract: Despite of good strength-to-weight ratio and superior corrosion resistance of titanium alloys, it is very difficult to machine them due to their poor machinability. Productivity and efficiency of the titanium alloys can be improved by means of high speed machining tools. Eventually, it is a much needed technology to complement the advancements in aerospace manufacturing applications. A bulk of literature is accounted for the purpose that simply suggest that different …
Published in International Journal of Computer Aided Manufacturing · Vol. 1, Issue 1, 2016 · pp. 10–14 Read article
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Thermal Modeling and Optimization of Irreversible Cogeneration Power Plant
Abstract: This paper aims at studying the cogeneration system coupled with outer heat reservoir of finite heat capacity and comprises of both external as well as internal irreversibility. External irreversibility is due to the finite-rate heat transfer between the working fluid and heat reservoirs while internal irreversibility is due to heat dissipation of working fluid. Both types of irreversibility are involved in the study on introducing an internal irreversible parameter which …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 1, Issue 2, 2015 · pp. 01–11 Read article
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Performance Analysis Of A Bio Diesel Fuelled Diesel Engine With The Effect Of Titanium Oxide (TiO2) Coated Piston
Abstract: Biodiesel is one of the best alternative fuel to diesel engine among other sources due to having potential to reduce emissions. Biodiesel is a renewable, biodegradable and environment friendly fuel in nature. The advantages of biodiesel are lower exhaust gas emissions and its biodegradability and renewability compared with petroleum based diesel fuel. The energy of the biodiesel can be released more efficiently with the concept of semi adiabatic (thermal barrier …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 3, Issue 1, 2017 · pp. 58–70 Read article
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Review on Vibration Problems in Turbomachinery
Abstract: Vibration suppression of turbomachinery is an important engineering problem. Vibration caused by mass imbalance is a common problem in rotating the turbomachinery systems. Imbalance occurs if the principal axis of inertia of the rotor is not coincident with its geometric axis. Higher speeds cause much greater centrifugal imbalance forces, and the current trend of rotating equipment toward higher power density clearly leads to higher operational speeds. In this paper, a …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 1, Issue 2, 2015 · pp. 54–57 Read article
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A Short Note on I.C. Engine and Its Components
Abstract: This article presents a brief description of IC engine and its components. Working principle is also explained which conveys a clear idea about efficiency that it starts immediately without much efforts and has higher efficiency than the external combustion engine. Other aspect of IC is that it is portable because of its light weight and compact size. Since it is safer to use, IC engine is commonly preferred for various …
Published in International Journal of I.C. Engines and Gas Turbines · Vol. 1, Issue 2, 2015 · pp. 12–15 Read article
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Finite Element Modelling and Structural 3d Static of the Mechanical Behavior of Dry Contacts Slipping Between the Disc and the Brake Pads
Abstract: The aim of this contribution is to present a study based on the determination of the structural deformations due to the contact of slipping between the disc and the pads. The results of contact described in this work relate to displacements, Von Mises stress and contact pressures of the pad at various moments of simulation. One precedes then the influence of some parameters on the computation results such as rotation …
Published in International Journal of Structural Mechanics and Finite Elements · Vol. 2, Issue 1, 2016 · pp. 23–43 Read article