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847 articles for “estimate”
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Soil Erosion Estimation modelling by Revised Universal Soil Loss Equation and SWAT on GIS platform
Abstract: Soil erosion is a threat to the economy of countries whose economy is dependent on Agriculture. It is very difficult to stop the soil erosion however if the causes of soil erosion and the quantum of it are calculated then with few appropriate soil conservation measures it can be reduced. This study is an attempt to estimate soil erosion by RUSLE & SWAT, in which urgent need of conservation measures …
Published in Journal of Water Resource Engineering and Management · Vol. 5, Issue 2, 2018 · pp. 56–69 Read article
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Study of Global Solar Radiation Estimation based on Artificial Neural Networks Techniques
Abstract: AbstractSolar Radiation data received by earth in the form of x-rays, UV-rays, infrared rays is a prominent and useful data as it gives the information about the amount of energy received from sun at the earth. Artificial Neural Network (ANN) is brain inspired technology which learns and performs in a way similar to the way our human brain performs. Sun’s energy is of utmost importance and is freely available in …
Published in Recent Trends in Electronics Communication Systems · Vol. 7, Issue 1, 2020 · pp. 26–31 Read article
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Demand for AYUSH Healthcare in India: Multinomial Logit Estimation of the Utilisation of Indian System of Medicine
Abstract: Despite the widespread use of the allopathic system of medicines, the indigenous non-allopathic systems of medicine are widely practiced and used in India. The increasing healthcare costs of the modern corporate type of hospitals and the less expensiveness of local herbal medicines drive the use of Ayurveda, Yoga and Naturopathy, Unani, Siddha and Homeopathy (AYUSH) hospitals for the treatments of chronic diseases, acute illness episodes, maternity health care and catastrophic …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 10, Issue 2, 2021 · pp. 18–26 Read article
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Prenatal estimation of the birth weight above 4,000 g (fetal macrosomia) using fetal abdominal circumference(AC)
Abstract: Purpose: This study is to determine if the birth weight above 4,000g can be correctly estimated by prenatal ultrasonographic measurements of abdominal circumference.Background: The delivery of macrosomatic fetus can increase the perinatal morbidity and mortality of both parturients and fetuses/neonates; the risk for shoulder dystocia, fetal asphyxia and birth trauma as well as vacuum or forceps delivery, hysterotomy and postpartum bleeding due to uterine atony. Thus, the accurate estimation of …
Published in Research and Reviews: A Journal of Medicine · Vol. 12, Issue 3, 2022 · pp. 27–33 Read article
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An Analytical Study on Learning Difficulties in Estimation Theory Among Undergraduate Engineering Students
Abstract: Estimation Theory is a critical mathematical foundation for all engineering disciplines, enabling learners to model uncertainty, analyse signals, and derive optimal estimators. However, undergraduate students frequently struggle with its abstract properties, complex derivations, and prerequisite statistical concepts. This study investigates the key learning difficulties faced by students across multiple engineering branches using diagnostic tests, structured questionnaires, and interviews. The findings reveal that students commonly experience challenges related to weak probability …
Published in Research & Reviews : Journal of Statistics · Vol. 15, Issue 1, 2026 · pp. 37–41 Read article
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Machine Learning-Based Channel Estimation in 5G, Beyond-5G, and 6G Networks: Recent Advances and Future Directions
Abstract: Accurate channel estimation is one of the most fundamental challenges in modern wireless communication systems. In fifth- generation (5G) New Radio (NR) and emerging sixth-generation (6G) networks, precise knowledge of the wireless channel is essential for achieving reliable data transmission, high spectral efficiency, and low Bit Error Rate (BER). Conventional estimation techniques such as Least Squares (LS) and Minimum Mean Square Error (MMSE) rely on mathematical channel models and predefined …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 13, Issue 2, 2026 Read article
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Speed Estimation of High-Speed Hysteresis Motor Based on Extended Kalman Filter
Abstract: High-speed hysteresis motors are used in special industries such as medical centrifuges and gyroscopes. In spite of that, they are synchronous motors in some situations they may work in asynchronous speed. So, for reliable performance of hysteresis motor, closed loop control strategies are employed. On this way, speed/position of rotor must be known. Due to difficulty of using the speed sensors in high-speed hysteresis motor drives, employing the speed estimation …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 1, 2016 · pp. 34–44 Read article
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Cogeneration of Fast Motion Estimation Processor and Algorithms Using Loss Less Compression
Abstract: Flexible and scalable motion estimation processor for the h.264 advanced video coding standard handling the processing requirements for high-definition video and suitable for Field-Programmable Gate Array (FPGA) implementation. The new motion estimation algorithm of kalman filter used to reduce the computational complexity. The eight custom instruction sets are used in the motion estimation. All processor instances are remaining binary compatible so recompilation process is not required. The motion estimation algorithm …
Published in Journal of VLSI Design Tools and Technology · Vol. 3, Issue 2, 2013 · pp. 1–5 Read article
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Power Estimation for VLSI Circuits Using Neural Networks
Abstract: Neural network based VLSI power estimation is done which estimates power in VLSI circuits from its input/output and gate information, without simulation and analysis of its detail structure and the interconnections.Artificial neural network is created which helps in estimation of power. Power estimation results from the [2] [3]are used as the training vector for the network .The network is trained using Back-propagation algorithm. Asimple recurrent network is also introduced called …
Published in Journal of VLSI Design Tools and Technology · Vol. 1, Issue 1-2-3, 2011 · pp. 45–56 Read article
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Land Surface Temperature Estimation using Landsat ETM+ Data
Abstract: Land Surface Temperature (LST) can be estimated from remotely sensed satellite data. LST is a key parameter in the physics of land surface processes because it is involved in the energy balance as well as in the evapo-transpiration and desertification processes. The knowledge of surface temperature is important to a range of issues and themes in earth sciences central to urban climatology, global environmental change, and human-environment interactions. In this …
Published in Journal of Water Resource Engineering and Management · Vol. 1, Issue 1, 2014 · pp. 8–14 Read article
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Property Estimation of Polymers: A Review
Abstract: AbstractPolymer production processes are facing the problems of optimization of production rate, increasing yield, waste minimization and environmental issues and product quality problems. These issues can be solved by designing efficient polymer manufacturing processes. Accurate properties of polymers are very important in designing efficient processes. Hundreds of property estimation methods are available for property estimation of polymers but the selection of the suitable property model is a challenging task. One …
Published in Journal of Polymer & Composites · Vol. 6, Issue 3, 2018 · pp. 14–24 Read article
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Channel Estimated Modulation Techniques for Wireless Communication Systems: Review
Abstract: The high spectrum and energy capabilities of Multiple Input Multiple Output systems make them a propitious technology for 5th-generation wireless communication systems. The acquisition of channel information is crucial for utilizing the potential gains of the multi-modal systems. Numerous studies have established channel estimation techniques and are still in research which faced several challenges with downlink-uplink overheads, complexities, and pilot contamination. This work discusses the insights obtained from the reviewed …
Published in Trends in Opto-electro & Optical Communication · Vol. 15, Issue 2, 2025 · pp. 1–10 Read article
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Joint Estimation of CSI and IQ Imbalance, and Compensation of IQ Imbalance in Spatialy Multiplexed MIMO-OFDM Receivers
Abstract: This study presents a novel method for estimating Channel State Information (CSI) and IQ imbalance and compensating IQ imbalance in a spatially multiplexed MIMO OFDM receiver. Our approach integrates estimation of IQ imbalance with CSI estimation using an OFDM training frame, thus eliminating the need for additional pilot symbols for IQ imbalance estimation. This technique streamlines the process and avoids extra overhead. We conducted simulations on a 2×2 spatially multiplexed …
Published in Journal of Microwave Engineering and Technologies · Vol. 12, Issue 2, 2025 · pp. 11–17 Read article
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Particle Swarm Optimization Framework for Accurate Battery State-of-Charge and Remaining Useful Life Estimation
Abstract: Accurate estimation of the State of Charge (SOC) and State of Health (SOH) of a battery is key to safe and efficient management of batteries in electric vehicles and energy-storage systems. However, it is challenging due to high nonlinearity, varying operating conditions, measurement noise, and limited access to comprehensive electrochemical parameters. Traditional data-driven models often generalize poorly and require heavy tuning, which can produce unstable predictions. To address these problems, …
Published in Journal of Automobile Engineering and Applications · Vol. 13, Issue 1, 2026 · pp. 53–64 Read article
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Online State Estimation and Fault Detection of a Doubly Fed Induction Machine by an Interconnected High Gain Observer
Abstract: This article presents the states and disturbance estimation of a doubly fed induction machine by the use of an interconnected high gain observer. The supply is made of a rectifier, a filter and an inverter. We consider the parameters such as the load couple, the electromagnetic couple and the speed on the only basis of the electric quantities. The results show that the error between the estimated and measured parameters …
Published in Journal of Control & Instrumentation · Vol. 8, Issue 3, 2017 · pp. 1–11 Read article
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An Innovational Approach for Estimation of Reliability Indices Accounting Repair Time of Hose Reel System-Safety Empirical Outlook
Abstract: Numerous reliability indices estimation of a system or component or element is very important in order to predict its availability and unavailability. Reliability is the specification which tells about the availability of the system under proper working conditions for a given period of time. Reliability of numerous complex engineering systems has been estimated in literature. In view of above, in this paper an innovational approach for estimation of various reliability …
Published in Journal of Control & Instrumentation · Vol. 12, Issue 3, 2021 · pp. 12–18 Read article
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Estimation of Heat Transfer Rate with Conjugate Gradient Method
Abstract: In thermal system, a considerable amount of heat leftovers with the exhaust flue gases. Appropriate arrangement to recover this waste heat may contribute to the enhancement of overall utilization of the energy supplied to the thermal system. In this study, heat transfer rate is approximately determined using inverse heat transfer concept. Simulated temperature readings have been taken at the measurement location on the mild steel rod. Conjugate gradient method (CGM) …
Published in Journal of Experimental & Applied Mechanics · Vol. 9, Issue 1, 2018 · pp. 1–8 Read article
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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
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Estimation of Drilling Waste Generation for Effective Waste Management
Abstract: Drilling operations remains the second generator of oil and gas waste after production activities. They are prominent among the primary sources of exploration and production waste. Wastes from drill cuttings and mud, and obnoxious gas emissions are the major contributors of these drilling wastes. These have direct and indirect impact on both humans and the environment. Poor estimation of waste may lead to solid and or liquid loadings at the …
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 14–19 Read article
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Direct Estimation of Air Void Content from Gyratory Compaction History
Abstract: A computational approach is offered and explored for estimating the air void content of asphalt mixtures densified in the Superpave gyratory compactor. It entails fitting a sigmoidal function to the compaction history records of specimen height vs. gyration level. The compaction progress is then extrapolated mathematically to infinite number of gyrations for which the air void content is theoretically zero. The fitted densification curve is then used to estimate the …
Published in Recent Trends in Civil Engineering & Technology · Vol. 3, Issue 1, 2013 · pp. 14–20 Read article