110 research outputs found

    Microwave Enhanced Synthesis of Flax-g-poly(MMA) for Use in Phenolic Composites as Reinforcement

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    Graft copolymerization of methyl methacrylate (MMA) onto flax fiber under the influence of microwave radiations (MWR) was carried out. 24.64% grafting was found at 210W microwave power under optimum reaction conditions. The graft copolymers were characterized with FTIR spectroscopy, scanning electron microscopy (SEM) and X-ray diffraction (XRD) techniques. Graft copolymers thus prepared were used in the preparation of phenol-formaldehyde (PF) composites. Modulus of rupture (MOR), modulus of elasticity (MOE) and stress at the limit of proportionality (SP) of composites were measured and it has been found that composites reinforced with Flax-g-poly(MMA) showed better mechanical properties in comparison to composites reinforced with raw flax

    A Technical Road Map from System Verilog to UVM

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    As the fabrication technology is advancing more logic is being placed on a silicon die which makes verification more challenging task than ever. More than 70% of the design cycle is used for verification. To improve the time to market we need a reusable verification environment that detects all functional errors and avoid re-spin. Universal verification methodology was introduced to fulfill these goals. UVM is well structured, reusable with little or no modifications, do not interfere with the device under test (DUT) and gives the speed of verification. UVM is supported by all major simulator vendors, which was not in earlier methodologies. This methodology provides a standard unified solution that compiles on all tools. This paper introduces the advantages of UVM over System Verilog, basic terminologies used in UVM and a simple functional verification environment construction using UVM DOI: 10.17762/ijritcc2321-8169.15038

    Synthesis, Characterization and Mechanical Evaluation of the Phenol-Formaldehyde Composites

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    Phenol: formaldehyde ratio was varied in the synthesis of phenol- formaldehyde resin and used to prepare the composites. These composites were then evaluated for their mechanical strength on the basis of tensile strength, compressive strength and wear resistance. Composite with better strength was characterized by IR, SEM, XRD, TGA/DTA and further studies were carried out for its physico-chemical and mechanical properties like viscosity, modulus of rupture (MOR), modulus of elasticity (MOE) and stress at the limit of proportionality (SP) etc

    Influencer Marketing as Emerging Promotional Tool in Modern Era and Opportunities to Uprising Sales

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    The increasing impact of social media for big brands nowadays are preferring influencer marketing over the traditional marketing techniques. Influencer advertising is a methodology that recognizes influential individuals on social media who impact a brand’s industry or target crowd. In an influencer advertising technique, a brand shapes an association with the influencer wherein the influencer consents to open their crowd to the brand’s informing or substance. Influencer marketing has become dramatically throughout the long term and the objective gathering for this promoting procedure is expanding step by step. Digital ad campaigns and online sketches made by the influencers get viral in no span of time. With hashtags, makes reference & other keywords the name of the brand stays in limelight for a longer period of time & impacts deeper in the minds of the audience. The research paper is based on secondary data. In this paper, the researcher has studied influencer market for promotions and various opportunities for market expansion

    Cellulose-Based Bio- and Nanocomposites: A Review

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    Cellulose macro- and nanofibers have gained increasing attention due to the high strength and stiffness, biodegradability and renewability, and their production and application in development of composites. Application of cellulose nanofibers for the development of composites is a relatively new research area. Cellulose macro- and nanofibers can be used as reinforcement in composite materials because of enhanced mechanical, thermal, and biodegradation properties of composites. Cellulose fibers are hydrophilic in nature, so it becomes necessary to increase their surface roughness for the development of composites with enhanced properties. In the present paper, we have reviewed the surface modification of cellulose fibers by various methods. Processing methods, properties, and various applications of nanocellulose and cellulosic composites are also discussed in this paper

    Graft copolymerization of MMA onto flax under different reaction conditions: a comparative study

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    In air synthesis of Psy-cl-poly(AAm) network and its application in water-absorption from oil-water emulsions

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