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122 articles for “Normal Distribution”
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Use of Matlab in Teaching The Fundamentals of Probability
Abstract: The aim of this paper is to improve teaching efficiency with use of powerful educational software called 'MATLAB'. In this paper using the 'MATLAB' tool 'Makeshow' we attractively introduce normal probability distribution for the normally distributed random variables. Using these tool students can easily create interactive slideshows. Because of their rich library, available tools and demos matlab is easy to use for the students and so it provides option of …
Published in Research & Reviews: Discrete Mathematical Structures · Vol. 5, Issue 3, 2018 · pp. 31–35 Read article
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Bayesian Approximation Techniques of Inverse Rayleigh Distribution
Abstract: The present study is concerned with the estimation of inverse Rayleighdistribution using various Bayesian approximation techniques like normal approximation, and Tierney and Kadane (T-K) approximation. Different informative and non-informative priors are used to obtain the Baye’s estimate of inverse Rayleighdistribution under different approximation techniques. The simulation study has been conducted for comparison of Baye’s estimates obtained under different approximations using different priors. A real life example has also been discussed …
Published in Research & Reviews : Journal of Statistics · Vol. 7, Issue 1, 2018 · pp. 50–59 Read article
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Designing Reliability Single Sampling Plans based on Exponentiated Rayleigh Distribution
Abstract: Reliability sampling plans are used in manufacturing industries to take decision on the disposition of lots of finished products based on the information obtained from concerned life test. Among various schemes, hybrid censoring scheme is applied with an objective of saving both time and cost of inspecting the products simultaneously. Parameters of the reliability sampling plans under hybrid censoring scheme are determined corresponding to the lifetime distribution. Exponential, Weibull, Rayleigh …
Published in Research & Reviews : Journal of Statistics · Vol. 7, Issue 1, 2018 · pp. 36s–40s Read article
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PBE-based Drop Dynamics Simulation in an Unbaffled Stirred Tank Reactor
Abstract: The population balance equation (PBE)-based model describes the distribution of drop size with respective to its size. In this work, 30% TBP was dispersed in 4N nitric acid solution by turbine impeller. Drop-size distributions were measured with a 630 nm laser-based particle size analyzer. For daughter drop density function, a normal distribution function was considered. For breakage rate, Voigt model of Chen et al. was used in the simulation [1]. …
Published in Journal of Nuclear Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 25–35 Read article
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Fitting of Probability Distribution on the Pre-Monsoon Precipitation of Different Locations in Bangladesh
Abstract: In this study, different probability distributions have been fitted for the data of pre-monsoon precipitation for 17 different locations in Bangladesh over the period 1961–2014. It is found that for the pre-monsoon precipitation, the Gamma is the best-fitted distribution for the locations of Faridpur, Maijdi Court, Khulna, Barisal, Dhaka, Rangamati, Ishurdi, and Rangpur. Furthermore, the Weibull distribution is well fitted for the pre-monsoon precipitations of Chittagong, Comilla, Cox's Bazar, and …
Published in Research & Reviews : Journal of Statistics · Vol. 6, Issue 3, 2017 · pp. 34–47 Read article
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Proportion Tests Applied in Assessors’ Selection Under Assumption Break: The Cases of Sensory Fatigue and Learning Process
Abstract: Triangle trials are commonly employed in panelist selection, describing a Binomial distribution. However, assessors can fatigue or develop sensitivity after many trials, which violate constant proportion assumption. This violation could affect some tests obtained from normal distribution interval estimators (TN1, TN2 and TN3), F distribution (TF), Sequential Test (TS) and Poisson approximation with quantile (TP). To evaluate this tests performance, Monte Carlo simulations were performed for 1000 assessors through 5, …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 10, Issue 1, 2021 · pp. 15–26 Read article
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Designing of Product and Sales Review System
Abstract: AbstractWith the quick development of the Internet, clients' capacity to distribute content has made dynamic electronic groups that give an abundance of item data. Shoppers incline toward perusing surveys to choose whether to purchase an item. In any case, the high volume of surveys that are normally distributed for a solitary item makes it harder for people to find the best audits and comprehend the genuine hidden nature of an …
Published in E-Commerce for Future & Trends · Vol. 4, Issue 1, 2017 · pp. 3–8 Read article
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Analytical and Statistical Analysis of Reinforced Concrete Frame Structure Subjected to Blast Loading
Abstract: Blast loading represents one of the most hazardous and destructive forces that structures may encounter throughout their life span. Understanding and mitigating the effects of such loading is crucial for ensuring the safety and resilience of buildings. This study focuses on analyzing the behavior of reinforced concrete (RC) frame structures when subjected to blast loading, with the aim of informing more robust and resilient building designs. The research specifically examines …
Published in Journal of Structural Engineering and Management · Vol. 11, Issue 2, 2024 · pp. 84–91 Read article
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Mohr's circle for stress in planes and Stress-Strain Relation for Elasticity Equations and Stress-Strain Analysis
Abstract: The distribution of stress and strain in thin films and substrates resulting from inhomogeneous plane stresses created in the film during deposition is calculated and reported. The findings can be used to determine the unknown stresses in a film using the "bending plate method," which measures the deformation of the substrate surface By doing this, Theoretically, the local values of the stress tensor within the film plane and the centre …
Published in Journal of Experimental & Applied Mechanics · Vol. 13, Issue 2, 2022 · pp. 16–21 Read article
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Evaluate the effect of knowledge, skills, and self-efficacy on home care of tracheostomy among caregivers of clients attending head & neck cancer opd at TMH with a view to develop pictographic pamphlet
Abstract: Statement of problem: Evaluate the effect of knowledge, skills, and self-efficacy on home care of tracheostomy among caregivers of clients attending head & neck cancer OPD at TMH with a view to develop pictographic pamphlet. The research approach used in this study was a survey approach and the design was descriptive one group pre-test post-test design. Samples were caregiver of patients with tracheostomy attending the head and neck OPD and …
Published in Research and Reviews : A Journal of Immunology · Vol. 13, Issue 3, 2023 · pp. 1–15 Read article
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Stress Perception among School-age Children
Abstract: Introduction: Prosody is the inflection embedded in speech. The perception of prosody is necessary to understand a spoken utterance, especially to appreciate the intricacies of languages. The influence of prosody is also beyond the boundaries of a sentence and provides speech its emotional tone. Prosody or the supra-segmental is made of stress (accent), intonation (pitch patterns) and the rhythmic (timing) pattern of language. Acoustically, it is described in terms of …
Published in Research & Reviews: A Journal of Bioinformatics · Vol. 6, Issue 2, 2019 · pp. 4–9 Read article
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An Alternative Robust Measure of Outlier Detection in Univariate Data Sets
Abstract: A univariate outlier is a data point that consists of an extreme value on one variable. Here we applied two types of outlier detection methods: one is graphical and another is analytical. This paper presents graphical methods for different statistical outlier detection such as scatter diagram, box plot and normal probability plot. Furthermore, the quantitative methods for outlier detection in this paper are the IQR method, SD method, Z-score method, …
Published in Research & Reviews : Journal of Statistics · Vol. 8, Issue 1, 2019 · pp. 1–11 Read article
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An Anthology of Parametric ROC Models
Abstract: In the context of classification problems, ROC curve has gained its importance in classified fields. The so called parametric form of ROC curve, namely, Binormal ROC model was developed by assuming normal distributions. However, the practical situations in classifying individuals/objects demanded new forms of ROC models. The present paper brings out an insight into the theoretical development of different parametric forms of ROC models and its measures.
Published in Research & Reviews : Journal of Statistics · Vol. 5, Issue 2, 2016 · pp. 32–46 Read article
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Real-time DDoS Attack Prediction in SDN Environments Using Machine Learning
Abstract: The ever-growing reliance on sdn-based services necessitates robust security measures against Distributed Denial-of-Service (DDoS) attacks that threaten service availability. This project investigates the development of a real-time prediction system for DDoS attacks in sdn environments, leveraging the power of machine learning. The proposed system employs a Decision Tree classification algorithm implemented in Python. To ensure accurate attack identification, the system meticulously addresses data preprocessing challenges inherent in network traffic datasets. …
Published in Journal Of Network security · Vol. 13, Issue 1, 2025 · pp. 16–27 Read article
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Examining the Relationship Between Academic Stress, Maladaptive Perfectionism and Trauma-Related Responses Among University Students
Abstract: Academic stress is a significant concern among university students, frequently contributing to maladaptive perfectionism and trauma-like responses. While perfectionism can enhance performance, its maladaptive variant may be exacerbated by academic stress which can induce trauma-like responses. This study investigates the correlation between academic stress, maladaptive perfectionism and trauma-like responses. Validated self-report measures were used in a quantitative, correlational study involving 101 university students. Linear regression analysis and Kendall’s Tau-B correlation …
Published in International Journal of Education Sciences · Vol. 3, Issue 1, 2026 · pp. 145–154 Read article
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Generation of Wind Power using Doubly Fed Induction Generator
Abstract: Due to independent controlling mechanism for the active and reactive power, doubly fed induction generator (DFIG) is still culled by the wind turbine companies. The control strategies are continuously advancing to manage the grid codes (i.e. reactive power compensation, low voltage ride-through operation). This paper focuses on the control strategies using combined reactive power compensation for power converters to maintain the optimized lifetime distribution under normal grid conditions. An advanced …
Published in Research & Reviews : Journal of Physics · Vol. 7, Issue 3, 2018 · pp. 73–78 Read article
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Randomized Latent Vectors for Enhanced Reinforcement Learning Exploration
Abstract: This paper investigates Random Latent Exploration (RLE), a novel reinforcement learning technique that enhances exploration using randomized latent vector conditioning. I evaluate RLE’s performance across various environments, including discrete control tasks (FourRoom), continuous control (IsaacLab), and complex visual domains (Atari games). The core approach augments traditional reward functions with intrinsic rewards, calculated as the dot product between state features and periodically resampled latent vectors. The policy and value networks are …
Published in Current Trends in Signal Processing · Vol. 15, Issue 3, 2025 · pp. 19–25 Read article
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Intercomparison of Rainfall Estimates of Probability Distributions for Developing the Intensity-Duration-Frequency Curves
Abstract: Determination of short duration rainfall through the developed Intensity-Duration-Frequency (IDF) curve is of utmost importance for planning, design, operation and management of civil and hydraulic structures. For which, extreme value analysis (EVA) of rainfall that consists of fitting probability distributions such as Normal, Log Normal (LN2), Pearson Type-3, Log Pearson Type-3, Extreme Value Type-1 (EV1) and Generalized Extreme Value (GEV) to the annual 1-day maximum rainfall series is carried out. …
Published in Journal of Water Resource Engineering and Management · Vol. 9, Issue 3, 2022 · pp. 39–53 Read article
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The Electromagnetic Transients in Mixed Power Networks with Partial Undergrounding
Abstract: This paper deals with the electromagnetic transients in partially undergrounded mixed high voltage power networks. These networks can include several cable sections replacing parts of the overhead transmission lines. The analysis yields the transient voltage and current distributions along the normal and the partially undergrounded lines. Moreover, the results can indicate eventually existing localized voltage and current concentrations within the network. The study suggests an exact direct analytical distributed parameter …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 2, 2017 · pp. 1–13 Read article
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Study of Microbial Distribution from Different Processing Stages in Purified Water Production Plant of Pharmaceutical Manufacturing Facility
Abstract: Abstract Treatment plants for production of pharmaceutical water are composed of successive processing stages. Microbial excursions may occur at any level(s) and in different occasions. Thorough analysis is required to be useful in investigation for any out-of-control state to identify the root cause. The current study provided long term inspection of microbial profile for over 41 months from different processing steps of water treatment station for purified water. Apparently low …
Published in Research and Reviews: A Journal of Microbiology and Virology · Vol. 6, Issue 1, 2016 · pp. 31–45 Read article