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34 articles for “non-smooth”
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A Review of the Bionic Surfaces for Engineering Applications
Abstract: The word ‘bionics’ refers to copying Nature, or taking ideas from Nature. As the field is increasingly influencing the emerging subjects of science and engineering, it has innumerable applications in fields such as robotics, product design, automobile components and biomaterials. This paper emphasizes the development of bionic surfaces for various engineering applications. It gives the relevance of bionic surfaces mimicked from insects/animals. It also presents a critical review of the …
Published in Journal of Materials & Metallurgical Engineering · Vol. 1, Issue 1-3, 2011 · pp. 1–17 Read article
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Demand Forecasting for Seasonal Demand Patterns: Case Study of a Pharmaceutical Company
Abstract: In this paper the authors have developed a heuristic model that addresses demand forecasting for products those follow seasonal patterns. The model is checked against various renowned forecasting methods by comparing forecast errors. The proposed heuristic model is found to give better results than the Winters’ and other exponential models. Non-linear optimization is used to choose the values of smoothing parameters rather than depending on human judgment or experience. This …
Published in Journal of Production Research & Management · Vol. 4, Issue 3, 2014 · pp. 1–7 Read article
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Constrained Online Non Negative Matrix Factorization (CONMF) for Visual Tracking
Abstract: Visual tracking is the process of locating a moving object (or multiple objects) over time using a camera. It is one of the most important components in numerous applications such as military, secure control, crime prevention systems, access control and biometric identification etc. of computer vision. In visual tracking, holistic and part-based representations are both popular choices to model target appearance. The former is known for great efficiency and convenience …
Published in Current Trends in Signal Processing · Vol. 7, Issue 1, 2017 · pp. 8–18 Read article
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Hand Gesture Recognition
Abstract: The goal of this research is to detect and recognize hand motions. Photographs of hand gestures are captured using a camera and compared to images in the database; all images are divided in testing and training data set and converted into train. Record and test. record. This. records file trained in TensorFlow Mobile Net pre trained model. Loading of this model using karas gives us the best match of video …
Published in Journal of Instrumentation Technology & Innovations · Vol. 12, Issue 2, 2022 · pp. 7–15 Read article
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Anaphylaxis: Pathophysiology, Risk Factors, and Clinical Management
Abstract: Anaphylaxis is a syndrome characterized by broncho-constriction, vasodilatation, and hypovolemia, potentially fatal exposure to known or unknown antigens. It can be an immune-mediated (IgE & non-IgE) disease. Immunoglobulin G (IgG), complement related (C3a/C5a), bradykinin, leukotrienes, prostaglandin E2, and ligands of certain G-protein coupled receptors (GPCR) can directly activate mast cells, basophils, eosinophils, neutrophils, endothelial cells and smooth muscles. Serum tryptase level during episodes of anaphylaxis, skin test, and basophil activation …
Published in Research and Reviews : A Journal of Immunology · Vol. 15, Issue 2, 2025 · pp. 1–11 Read article
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The Analysis of Bridge Rectifier Circuits using Mathematica
Abstract: This paper addresses the steady-state and transient analysis of bridge rectifiers. It starts withsuggesting an efficient representation of the diodes. A single equation that describes thediode’s performance in both the forward and reverse directions is presented. It implicitlytakes the voltage polarity into account. Without any loss of generality, the suggested method isapplied to the classical uncontrolled four-valve full-wave rectifier bridge configureuration.The effect of the load resistance and the eventual presence …
Published in Trends in Electrical Engineering · Vol. 10, Issue 1, 2020 · pp. 30–42 Read article
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Harmonic Analysis of Full-Wave Diode Bridge Rectifier Circuits
Abstract: This paper analyzes the steady-state harmonic performance of four-diode, single-phase full-wave rectifier bridge circuits. The frequency spectra of the source and load currents are presented. The effect of the load resistance, the source inductance, the smoothing shunt- capacitor as well as the waveform of the supply voltage is illustrated. The approach can also handle cases involving non-sinusoidal sources and non-linear loads. Based on a Mathematica code, the paper presents the …
Published in Trends in Electrical Engineering · Vol. 10, Issue 1, 2020 · pp. 7–21 Read article
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A Novel Approach to Image Enhancement using FUZZY Set
Abstract: ABSTRACTIn this paper FUZZY set has been used to deal with image enhancement problems of some uncertain and inaccurate image. The traditional image enhancement method like histogram modification, image smoothing, image sharpening inverse filters and wiener filter for inaccurate and uncertain image is undesirable. As fuzzy system is capable of representing diverse, non-exact, uncertain and inaccurate knowledge of information, it has attracted the attention of for image enhancement. The generalized …
Published in Journal of Computer Technology & Applications · Vol. 1, Issue 1-3, 2011 · pp. 28–34 Read article
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The Energization Transients of 6-Pulse Rectifier Circuits
Abstract: This paper addresses the energization transients of 6-pulse rectifier circuits. It applies anefficient representation of the diodes in order to describe their performance in both theforward and reverse directions. Without any loss of generality, the suggested method isapplied to the classical un-controlled six-valve full-wave rectifier bridge configuration. Theeffect of the load resistance, the eventual presence of smoothing shunt-capacitors and seriesinductors as well as the waveform of the supply voltage is …
Published in Journal of Power Electronics and Power Systems · Vol. 10, Issue 1, 2020 · pp. 18–30 Read article
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Harmonic Analysis of 6-Pulse Diode Bridge Rectifier Circuits
Abstract: This paper analyzes the steady-state harmonic performance of the six-diode, 3-phase rectifier bridge circuits. A procedure for determining the frequency spectra of the different voltages and currents within the bridge circuit, resulting from a 60-Hz 3-phase supply, is presented. The effect of the smoothing shunt-capacitor is also demonstrated. Based on a Mathematica code, the paper presents the results of a comprehensive list of case studies. The procedure can handle unsymmetrical …
Published in Journal of Power Electronics and Power Systems · Vol. 10, Issue 2, 2020 · pp. 1–10 Read article
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Artificial Intelligence–Assisted Reduced-Order Modeling and Stability Control in Granular Couette Flow
Abstract: This study develops a reduced-order and stability-aware modeling framework for dense granular Couette flow by integrating continuum mechanics, bifurcation analysis, and data-driven stability estimation. Starting from coupled governing equations for momentum, granular temperature, and microstructural evolution, the system is nondimensionalized and reduced using a Galerkin projection consistent with shear-driven boundary conditions. This yields a low-dimensional nonlinear dynamical system that preserves the essential coupling between velocity, fluctuation energy, and structural relaxation. …
Published in Emerging Trends in Chemical Engineering · Vol. 13, Issue 3, 2026 Read article
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The Role of IoT in Shaping Smart Cities with Architectural Perspective
Abstract: The integration of IoT in smart cities is revolutionizing the development of cities through interconnected systems that enhance efficiency, sustainability, and quality of life. Real-time data collection,communication, and processing are facilitated by IoT technology through its layered architecture:sensing, network, and application layers. These interlinked ecosystems help solve such serious problems of urbanization as the efficient allocation of resources, smooth flow of traffic, efficient utilization of energy, and the handling of …
Published in Journal of Control & Instrumentation · Vol. 16, Issue 2, 2025 · pp. 1–10 Read article
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Efficient Energy Management and Utilization Using IoT Enabled Intelligent System
Abstract: Energy is essential for economic development, and the demand for electricity is rising at an extraordinary pace. Currently, fossil fuels remain the main source of global power generation, but these resources are limited and detrimental to the environment. Therefore, there is an urgent need to broaden energy sources and transition towards cleaner, sustainable, and renewable options. This paper examines the potential of multi-source power generation and usage as a viable …
Published in International Journal of Electrical Power and Machine Systems · Vol. 3, Issue 1, 2025 · pp. 38–45 Read article
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Challenges and Solutions in Load Frequency Control: A Review of Controller Design
Abstract: The Load Frequency Control (LFC) of two area interconnected reheat thermal systems utilising a traditional proportional integral (PI) controller is described in this study. Boiler dynamics, a non-linear generating rate constraint, and a regulator dead band are all integrated into the system. When nonlinearities and boiler dynamics are considered, the traditional PID & P controllers do not produce sufficient control performance. To overcome this issue, a PI Controller has been …
Published in Journal of Control & Instrumentation · Vol. 14, Issue 3, 2023 · pp. 36–50 Read article
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Development and Investigation of Minimum Power Non-contact Swirl Vane Gripper
Abstract: The Swirl vane gripper is a new non-contact gripper, which uses negative pressure created by the air swirling flow to create an upward lifting force. This upward force can be used to lift an object, which is placed underneath the gripper. In comparison with other non-contact grippers, this gripper is electrically actuated (rather than pneumatically) and hence require less power to generate same lifting force as produced by other grippers. …
Published in Trends in Electrical Engineering · Vol. 8, Issue 3, 2018 · pp. 28–34 Read article
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Adaptive Robust Constraint-Based Nonlinear Control for Trajectory Tracking and Dynamic Obstacle Avoidance in Multi-copter UAVs
Abstract: An adaptive robust nonlinear control system for multi-copter unmanned aerial vehicles (UAVs) trajectory tracking and obstacle avoidance is presented in this research. The suggested approach addresses nonlinear dynamics and environmental uncertainties by combining adaptive disturbance estimates with constraint-based control. Nonlinear differential equations are used to simulate the motion of the UAV, with obstacle avoidance represented as an inequality constraint and trajectory tracking as an equality constraint. The Udwadia–Kalaba method is …
Published in International Journal on Drones · Vol. 2, Issue 2, 2026 · pp. 01–08 Read article
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Formulation, Evaluation and Development of Multipurpose Cream Containing kokum Butter
Abstract: The creation of the multipurpose polyherbal crack-healing cream, which shields the skin from cracks and can also serve as a multifunctional cream to shield the skin from other skin issues. The polyherbal cosmetic formulation can be used to give skin a protective barrier and is safe to use. Over the course of the study, this multipurpose polyherbal cream demonstrated good homogeneity, pH, consistency, spreadability, and lack of phase separation. This …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 12, Issue 1, 2025 · pp. 78–89 Read article
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Gallbladder Papillary Carcinoma, The Difficulty of Early Detection: A Case Report
Abstract: Gallbladder carcinoma is the sixth most common malignant tumour of the gastrointestinal tract and the most frequent malignant neoplasm of the biliary tract. Papillary carcinomas are uncommon neoplasm’s, representing nearly 5–12% of all malignant gallbladder tumours. Evidence accumulated in the last 20 years indicates that papillary carcinomas of the gallbladder are associated with a better prognosis than conventional nonpapillary carcinomas.We report our experience with gallbladder papillary carcinoma incidentally diagnosed during …
Published in Research and Reviews : Journal of Surgery · Vol. 6, Issue 3, 2017 · pp. 12–16 Read article
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Self-similarities in Hilbert Envelope Energy Regions on Motion Waveforms Application in Detecting Motion Irregularities in Video Frames
Abstract: This paper introduces self-similar Hilbert envelope energy regions that are commonly found in oscillating spectral curves. The time-varying amplitudes and peak value frequencies in typical spectral curves reflect the response of a system to external stimuli. A Hilbert envelope is a smooth curve connected between spectral curve peak values. Each peak value on an envelope curve at time identifies an envelope-bounded region with interior area (called Hilbert envelope energy region …
Published in Trends in Opto-electro & Optical Communication · Vol. 14, Issue 3, 2024 · pp. 34–49 Read article
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Design of Integrated DC/DC Converter Topology for Hybrid Vehicle
Abstract: Hybrid vehicles traditionally rely on separate DC/DC converters for both the battery and fuel cell, which often leads to increased size, higher costs, energy losses, and limited performance. This paper presents an improved solution: a compact, integrated DC/DC converter with a non-isolated, multi-port design. This new approach simplifies the system by combining the fuel cell and battery into a single, unified converter, reducing the typical drawbacks of conventional designs. The …
Published in Journal of Instrumentation Technology & Innovations · Vol. 15, Issue 1, 2025 · pp. 25–31 Read article