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Showing papers by "KCG College of Technology published in 2018"


Journal ArticleDOI
TL;DR: In this article, the results of a turning of magnesium alloy using uncoated tungsten carbide cutting insert in dry and minimum quantity lubrication (MQL) cutting conditions have been presented.

88 citations


Journal ArticleDOI
TL;DR: The obtained results by the suggested algorithm in terms of quality solution, computational performance and convergence characteristic are compared with various algorithms to show the ability of the proposed approach and its robustness in finding a better cost- effective solution.

67 citations


Journal ArticleDOI
TL;DR: In this paper, the authors examined the mechanical, tribological, and thermal properties of hemp fiber reinforced egg shell epoxy polymer composites and carried out experiments to study the effect of these properties on their performance.
Abstract: The aim of this work is to examine the mechanical, tribological, and thermal behaviour of hemp fibre reinforced egg shell epoxy polymer composites. Experiments are carried out to study the effect o...

61 citations


Journal ArticleDOI
TL;DR: In the field of dry machining, surface texture has been shown to have the potential to influence tribological conditions and has been used in the application of controlled su... as mentioned in this paper.
Abstract: Recent researches in the field of dry machining have indicated that surface texture has the potential to influence tribological conditions. Researchers have studied the application of controlled su...

46 citations


Journal ArticleDOI
TL;DR: An exploratory review on various attempts made in the literature for improving the performance of diesel engine, since last decade and contemplates the reporting of various advancements in the optimization models for further enhancement of engine performance.
Abstract: This paper presents an exploratory review on various attempts made in the literature for improving the performance of diesel engine, since last decade. The review explains the evolution of various performance improvement methods followed by explaining the modeling techniques, state-of-the-art metrics that define the performance of the diesel engines. Subsequently, the review is confined to artificial intelligence methodologies for improving the performance improvement. This review addresses an important challenge for enhancing the performance of the diesel engine by exploiting the optimization algorithms. The significant challenges are the noisy experimental scenario, robustness, imprecise and temporal variations of approximations of fitness models. Since these challenges still exist in the optimization algorithms and diesel engine modeling, there is an extensive scope for researchers who are working on a diesel engine. This contemplates the reporting of various advancements in the optimization models for further enhancement of engine performance.

26 citations


Journal ArticleDOI
TL;DR: In this article, a semiconductor heterostructure obtained between TiO2 and BiOI was obtained in a two-step synthetic method, where Tetrabutylammonium iodide (TBAI) was used as the iodide source for biOI and the prepared materials have been characterized by XRD, FE-SEM, DRS and PL measurements.
Abstract: For a visible light active photocatalyst, the band alignment of coupled semiconductors is a key step. In here, we present a semiconductor heterostructure obtained between TiO2 and BiOI. Gelatin assisted g-TiO2/BiOI nanocomposites were prepared in a two step synthetic method. Tetrabutylammonium iodide (TBAI) was used as the iodide source for BiOI. The prepared materials have been characterized by XRD, FE-SEM, DRS and PL measurements. FE-SEM measurements confirmed the presence of sphere like TiO2 particles embedded on the BiOI plates. BiOI loading increases the absorbance of g-TiO2 into the entire visible region, and make these composites more photoactive under visible light. PL measurements confirm the suppression of electron-hole recombination in g-TiO2/BiOI samples. The prepared materials were used for the azo dye Acid Black 1 (AB 1) degradation under visible light, and it was found that BiOI loading effectively enhances the degradation ability of the TiO2. The degradation mechanism was proposed based on the energy levels of TiO2 and BiOI. The reusability of the g-TiO2/BiOI was studied.

25 citations


Journal ArticleDOI
TL;DR: The performance of IoT enabled cascade control system is validated through various metrics, such as rise time, settling time, integral square and integral absolute errors.

25 citations


Journal ArticleDOI
TL;DR: Quasi-static indentation assessments revealed that energy absorption property was enhanced significantly by 53.97%.
Abstract: The principal objective of this research work was to investigate the results of impregnating epoxy matrix-glass fibre composite laminates with nanosilica as secondary reinforcement. 0.5, 0.75, 1 and 3 wt% nanosilica was used and thereafter properties of composites were assessed through tensile, three point bending, quasi static indentation tests and dynamic mechanical analysis. Scanning electron microscope examinations were done on fracture surfaces and failure modes were analyzed. The internal failures of the composite due to quasi-static indentation were evaluated through C-Scan. Among samples of different weight fractions, 0.75 wt% nanosilica reinforced composite laminates exhibited substantial increase of 42% in tensile strength and 39.46% in flexural strength. The reduction in glass transition temperature (Tg), increase in storage modulus (E′), loss modulus (E″) and damping factor (tan δ) were also observed. Quasi-static indentation assessments revealed that energy absorption property was enhanced significantly by 53.97%. Hence nanosilica up to 0.75 wt% can be used as a potential candidate for secondary reinforcement in epoxy composite laminates.

24 citations


Journal ArticleDOI
TL;DR: In this paper, the photocatalytic performance of Ag-Au/ZnO composite was evaluated by irradiating the sample solution under solar light and taking acid red 18 (AR 18) as an organic dye.

19 citations


Book ChapterDOI
01 Jan 2018
TL;DR: The Artificial Neural Networks (ANN) is used for training, testing and validation process takes place to identify nodule and classify in stages i.e. Stage 1 (initial), Stage 2 (middle) and Stage 3 (critical).
Abstract: Automated detection of pulmonary nodules helps radiologists in early detection of lung cancer from computed tomography (CT) scans. It is very costly computationally because of its complexity of the process. The CT scan has more advantages than other computational algorithms. The preprocessed CT scan is thresholded using Otsu’s method and the lung region is segmented using K-means Clustering which is based on geometric features. Texture based feature analysis algorithm is used to identify the major descriptors. The Artificial Neural Networks (ANN) is used for training, testing and validation process takes place to identify nodule and classify in stages i.e. Stage 1 (initial), Stage 2 (middle) and Stage 3 (critical). The results obtained in this method has been checked for accuracy.

18 citations



Proceedings ArticleDOI
01 Feb 2018
TL;DR: A novel approach to detect the phishing web sites by intercepting all the hyperlinks of a current page through Google API, and constructing a parse tree with the intercepted hyperlinks is proposed.
Abstract: Phishing is a technique of tricking people into giving sensitive information like usernames and passwords, credit card details, sensitive bank information, etc., by way of email spoofing, instant messaging, or using fake web sites whose look and feel gives the appearance of a legitimate website. In this work, a technique named parse tree validation is proposed to determine whether a webpage is legitimate or phishing. It is a novel approach to detect the phishing web sites by intercepting all the hyperlinks of a current page through Google API, and constructing a parse tree with the intercepted hyperlinks. This technique is implemented and tested with 1000 phishing pages and 1000 legitimate pages. The false negative rate achieved was 7.3% and the false positive rate achieved was 5.2%.

Journal ArticleDOI
TL;DR: The comparison between the proposed Minimal Relevant Features-based Classification (MRFC) with existing SVM regarding the accuracy, precision, recall, sensitivity, specificity and coefficient confirms the effectiveness of proposed MRFC in earlier fault diagnosis in industrial applications.

Proceedings ArticleDOI
01 Dec 2018
TL;DR: The coanda effect is applied to develop a Coanda ejector which could handle soft materials without damaging them and simulation results reveal that handling of planer object is easier than circular object.
Abstract: Design of the robot gripper for food industries is important as it must be able to handle foods with various shape, surface texture, size without indenting them. In this research, the coanda effect is applied to develop a Coanda ejector which could handle soft materials without damaging them. The Coanda ejector is designed with the assistance of CAD software and further assessed through CFD analysis to study the fluid flow internally in the ejector. The simulation results reveal that handling of planer object is easier than circular object. The gap between the ejector and circular object seems to be almost zero as the curved profile does not create the sufficient suction force at the secondary inlet of the ejector. The ejector is then fabricated to test for its functionality. Experiments are conducted and pressure at the secondary inlet is measured through sensor. The under-pressure is observed at the secondary inlet when the gripper moves closer to the object. Also understood that the gap between ejector and the object could even more when the input pressure is increased. The ejector is able to successfully grip aluminum plate, apple, orange and tennis ball.

Book ChapterDOI
01 Jan 2018
TL;DR: In this article, the effect of passive control on elliptical jet at different levels of nozzle pressure ratio was studied and the results were captured and compared to one another by using numerical simulations, which showed that the efficiency of mixing is superior when the crosswire is placed at ½ positions than ¼ and ¾ positions.
Abstract: This paper aims to study the effect of passive control on elliptical jet at different levels of nozzle pressure ratio. This experiment is carried out for three different types of configurations at two, four, five, and six NPRs. The results are captured and compared to one another. The rectangular crosswire is used as a passive control and tested at Mach number of two. The crosswire running along the major axis of the elliptical jet exits. The pitot pressure decay and the pressure profiles are plotted for various nozzle expansions. The crosswire is placed at three different positions ¼, ½, and ¾ to alter the shock wave successfully and to promote the mixing of jet. The shock waves are captured using numerical simulations. Due to the introduction of passive control at the exit of issuing jet, the shock wave weakens effectively, which stimulates the mixing promotion of jet by providing a shorter core length. It is witnessed that the efficiency of the mixing is superior when the crosswire is placed at ½ positions than ¼ and ¾. In addition, we also had seen a notable change in axis switching of the jets.

Journal ArticleDOI
01 Apr 2018
TL;DR: In this article, nano-silica reinforced composite laminates with consistent mechanical properties are evaluated under tensile and flexural loading conditions, where plain weave E-Glass fabric and epoxy LY556 are used as reinforcement and matrix.
Abstract: Repeatability to manufacture nano-silica reinforced composite laminates with consistent mechanical properties is studied. In this study, composite laminates are manufactured by hand layup and there after mechanical properties of the laminates are evaluated under tensile and flexural loading conditions. Composite laminates are fabricated and tested under equivalent conditions. Plain weave E-Glass fabric and epoxy LY556 are used as reinforcement and matrix. Nano-silica of size 17nm is used as filler. To enhance the reliability of composite characterization, utmost care is taken to avoid defects like voids, surface defects and under-saturations. Homogeneous distribution of nano silica in matrix is analyzed using TEM study. Inconsistencies in mechanical properties are quantified by coefficient of variation. In this study, the coefficient of variation is estimated in terms of break load for tensile test is 4.45 and for flexural test is 2.27 and is well within the limits.


Journal ArticleDOI
TL;DR: A new non-invasive diagnostic tool correlating the hemoglobin with conjunctiva pallor colour scores and classification using neural networks is introduced, useful for the health workers to identify the mass screening of anaemia in rural areas.
Abstract: Anaemia is predicted as one of the serious communal health issue in the world. The deficiency exists most common among children and women. A substantial issue prevails in providing quality healthcare services to rural communities, which remains a challenge to health service providers throughout the world. Traditionally physician and health workers recognized anaemia from certain clinical findings, such as pallor of the conjunctivae, nail beds, lips, tongue, and oral mucosa. Confirmation of anaemic condition through physical examination of Dorsum of a tongue or lower bulbar conjunctiva is a subjective analysis. Invasive methods have a possibility to spread infection through the needle. The existing non-invasive techniques need costly equipment and qualified technicians. Growing developments in science and technologies play an important role in medicine. This proposal introduces a new non-invasive diagnostic tool correlating the hemoglobin with conjunctiva pallor colour scores and classification using neural networks. In this study, the eye images were obtained using a mobile camera were processed using the HSI model, which estimates different colour scores of the selected region. These scores were correlated with laboratory haemoglobin value. Feedforward neural network and Elman neural network were used for classifying anaemic and non-anaemic cases. This proposed tool will be useful for the health workers to identify the mass screening of anaemia in rural areas.

Book ChapterDOI
01 Jan 2018
TL;DR: Although various antenna designs are currently prevalent to support the existing systems, in-order to overcome the bandwidth limitations, Alpha-Numeric (Alphabets and Numbers) Microstrip Patch Antennas are proposed in this paper.
Abstract: The Microstrip Patch Antenna’s (MPA’s) find usability in several day to day applications They hold several advantages like low-profile structure, low fabrication cost, and they support both circular as well as linear polarizations, etc This paper proposes MPA for Wi-Fi applications where it is used within the 24 GHz range of frequencies (IEEE 80211) Although various antenna designs are currently prevalent to support the existing systems, in-order to overcome the bandwidth limitations, Alpha-Numeric (Alphabets and Numbers) Microstrip Patch Antennas are proposed in this paper The MPA’s are designed with 24 GHz as their resonant frequency The simulation results based on the essential antenna performance analysis parameters like Return Loss, Gain, Radiated Power and Directivity are discussed The antenna’s are designed with a thickness of 15 mm, height of 70 mm and width of 60 mm, the substrate material of the antenna’s is Flame Retardant 4 (FR4) and its relative permittivity is 44 The designs for all the Microstrip Patch Antennas are simulated using Advanced Design System 2009 (ADS) software


Proceedings Article
01 Jan 2018
TL;DR: This work deals with developing a system which can act as a one stop solution for all diseases which could be monitored with the aid of information on blood tests and culture tests of the same, and targets the pediatric division of the health care.
Abstract: Many a time life threatening disease become disastrous because of lack of proper monitoring systems. Continuous monitoring mechanisms can yield real time data which can predict the arrival of diseases easily and control the same before it turns out to be fatal. This work deals with developing such a system which can act as a one stop solution for all diseases which could be monitored with the aid of information on blood tests and culture tests of the same. The device to be developed takes the sample of blood and monitors it in a continuous basis. The algorithms are designed in such a way that the continuous monitoring becomes the underlying requirement. This can be a disruptive innovation. The blood sample at a point is taken without inflicting much pain. This sample acts as a basis for the underlying tests to be conducted. Such an approach facilitates the prediction of a large number of fatal diseases. Glycaemic control in type 1 diabetes during real time continuous glucose monitoring can be one of the commercial offshoots of such a development. Also, the design which suffices blood culture monitor can be an effective causal predictor for many ailments like typhoid, dengue and such other epidemics. The careful design of the same, targets the pediatric division of the health care. The analysis part has to be designed as a two-step meta-analysis which gives conclusive evidence for the diseases. It inevitably acts as a vade mecum for the such treatment designs. A real time, wearable ECG and continuous blood pressure monitoring system for first responders (Ribeiro et al 2011) is the primary motivation for such a design algorithm. This instrument elicits huge amount of real time data which inadvertently can act as a effective predictor for any upcoming fatalities. The difficulty in monitoring these parameters for the tiny tots increases the relevance of the research. The device which comes as an attachment like watch can be perfect companion for the kids and keeps a check on their health by the meta-analysis of the data collected. References Eisenberger, G., McCulloch III, E. H., & Thomas, L. R. I. (2012). U.S. Patent No. 8,306,831. Washington, DC: U.S. Patent and Trademark Office. Hall, K. K., & Lyman, J. A. (2006). Updated review of blood culture contamination. Clinical microbiology reviews, 19(4), 788-802. Ribeiro, D. M., Colunas, M. F., Marques, F. A. F., Fernandes, J. M., & Cunha, J. P. S. (2011, August). A real time, wearable ECG and continous blood pressure monitoring system for first responders. In Engineering in Medicine and Biology Society, EMBC, 2011 Annual International Conference of the IEEE (pp. 68946898). IEEE.

Journal ArticleDOI
TL;DR: In this paper, a new nonlinear optical material L-Arginine doped potassium penta borate (LAKB 5 ) single crystals have been grown by slow evaporation solution growth technique from its aqueous solution.


Journal ArticleDOI
01 Feb 2018-Optik
TL;DR: In this article, a distributed feedback dye laser (DFDL) activity was initiated, and the dependence of pulse widths, and output power on acceptor-donor concentrations and pump power were analyzed in theoretical form.


Book ChapterDOI
06 Dec 2018
TL;DR: Alphabets and numeric together called Alpha/Numeric microstrip patch antenna (MPA) is fabricated and tested for 2.4 GHz resonant frequency for Wi-Fi applications and the different characteristics such as return loss and VSWR were analyzed and discussed here.
Abstract: In this contribution, alphabets and numeric together called Alpha/Numeric microstrip patch antenna (MPA) is fabricated and tested for 2.4 GHz resonant frequency for Wi-Fi applications. The MPA is preferred for this design because it has the advantage that cut resonant slot inside the patch of different geometry. The Antenna is designed with Flame Retardant 4 (FR4) substrate material with a relative permittivity of 4.4 and with the suitable dimensions of substrate thickness of 1.5 mm, layout layer thickness of 70 μm, height 70 mm and width 60 mm. The above-designed antenna is fabricated (Alpha/Numeric MPA) and tested by network analyzer (E5062A ENA Series). The different characteristics such as return loss and VSWR were analyzed and discussed here.

Journal ArticleDOI
TL;DR: In this article, a pin-on-disc wear testing machine was used to evaluate the wear resistance of surface modified ZK60 magnesium alloy and the result showed that the surface modification by FSP resulted in 26% increase in hardness compared to parent metal.
Abstract: Wear resistance and poor friction are the two main draw backs of magnesium alloys that restricts structural applications. Therefore it is essential to enhance the tribological properties of magnesium alloys with the help of surface engineering without causing significant antagonistic effects on the properties of the base metal. Friction stir processing (FSP) is one of the promising thermo-mechanical processing techniques that alters the micro-structural and tribological properties of the material with low production at less period of time. Hence, this investigation enable us to study an effect of friction stir processing on wear characteristics of cast ZK60 magnesium alloy. A pin-on-disc wear testing machine was used to evaluate the wear resistance of surface modified ZK60 magnesium alloy. The result shows that the surface modification by FSP resulted in 26% increase in hardness compared to parent metal. The formation of finer grains and subsequent increase in hardness are the main reasons to improve wear resistance of FSPed ZK60 magnesium alloy.


Journal ArticleDOI
TL;DR: In this article, the effect of magnetic field strengths of actuators on the performance of vibration isolation of a quarter car model is analyzed and compared with the conventional elements of the car model.
Abstract: This work analyzes the effect of magnetic field strengths of actuators on the performance of vibration isolation of quarter car model. Hybrid magnet and magnetorheological fluid damper with the nano- and micron-sized iron oxide particles are employed as actuators in parallel with the conventional elements of the car model. Experimental work has been carried out on a laboratory scale model of a two degree of freedom quarter car with the help of electrodynamic shaker, accelerometers, data acquisition card and LabVIEW software. The performance is evaluated based on suspension deflection, tire deflection and transmissibility ratio. The improvement in the performance of the combined effect of actuators is better than the conventional and individual elements.

Journal ArticleDOI
TL;DR: In this paper, an attempt at FSP zone formation in magnesium alloy has been made in order to understand the influences of rotational speeds ranging from 700 to 1,100 r/min.
Abstract: A Cast ZK60 magnesium alloy plays a tremendous role in the fabrication of lightweight structural materials However, the low surface properties, like low friction and wear resistance, restricts the magnesium alloy during the structural application Conventionally, the surface properties of magnesium alloys were improved using various processing methods like high-energy electron beam irradiation, plasma-transferred arc surfacing, and high-energy laser melt treatment However, the above processes are involved in melting the magnesium material, which results in defects and detrimental metallurgical phase formation Friction Stir Processing (FSP) can overcome this problem since the processing is done in the solid state However, FSP often appears to be a significant applicant on the magnesium plate to attain successful fabrication of surface metal matrix composites In this investigation, an attempt at FSP zone formation in magnesium alloy has been made in order to understand the influences of rotational speeds ranging from 700 to 1,100 r/min From this investigation, it is found that the FSP made by using the high tool rotational speed of 900 r/min and 10 mm/min exhibited higher hardness and uniform particle distribution This may be attributed to the grain boundary and dispersion strengthening