Search

Your search keyword '"Rahman, S."' showing total 10,016 results
Start Over Author "Rahman, S."
10,016 results on '"Rahman, S."'

153. A Variational Step for Reduction of Mixed Gaussian-Impulse Noise from Images

Author

Islam, Mohammad Tariqul, Saha, Dipayan, Rahman, S. M. Mahbubur, Ahmad, M. Omair, and Swamy, M. N. S.

Subjects
Electrical Engineering and Systems Science - Image and Video Processing
Abstract

Reduction of mixed noise is an ill posed problem for the occurrence of contrasting distributions of noise in the image. The mixed noise that is usually encountered is the simultaneous presence of additive white Gaussian noise (AWGN) and impulse noise (IN). A standard approach to denoise an image with such corruption is to apply a rank order filter (ROF) followed by an efficient linear filter to remove the residual noise. However, ROF cannot completely remove the heavy tail of the noise distribution originating from the IN and thus the denoising performance can be suboptimal. In this paper, we present a variational step to remove the heavy tail of the noise distribution. Through experiments, it is shown that this approach can significantly improve the denoising performance of mixed AWGN-IN using well-established methods., Comment: ICECE, Dhaka, Bangladesh, 2018

Published
2018

155. Assessment of Ecosystem Services, Plant Diversity Pattern, and Water Quality of an Urban Water Body in Dhaka, Bangladesh

Author

Rezwan, Sheikh Md., Chowdhury, Md. Azharul Haque, Rahman, S. M. Mahmudur, Pisello, Anna Laura, Editorial Board Member, Hawkes, Dean, Editorial Board Member, Bougdah, Hocine, Editorial Board Member, Rosso, Federica, Editorial Board Member, Abdalla, Hassan, Editorial Board Member, Boemi, Sofia-Natalia, Editorial Board Member, Mohareb, Nabil, Editorial Board Member, Mesbah Elkaffas, Saleh, Editorial Board Member, Bozonnet, Emmanuel, Editorial Board Member, Pignatta, Gloria, Editorial Board Member, Mahgoub, Yasser, Editorial Board Member, De Bonis, Luciano, Editorial Board Member, Kostopoulou, Stella, Editorial Board Member, Pradhan, Biswajeet, Editorial Board Member, Abdul Mannan, Md., Editorial Board Member, Alalouch, Chaham, Editorial Board Member, O. Gawad, Iman, Editorial Board Member, Nayyar, Anand, Editorial Board Member, Amer, Mourad, Series Editor, Rodrigues, Hugo, editor, Gahlot, Vimal, editor, Salah Uddin, Mohammad, editor, and Fukuda, Tomohiro, editor

Published
2022
Full Text
View/download PDF

156. DCNN-LSTM Based Audio Classification Combining Multiple Feature Engineering and Data Augmentation Techniques

Author

Islam, Md. Moinul, Haque, Monjurul, Islam, Saiful, Mia, Md. Zesun Ahmed, Rahman, S. M. A. Mohaiminur, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Vasant, Pandian, editor, Zelinka, Ivan, editor, and Weber, Gerhard-Wilhelm, editor

Published
2022
Full Text
View/download PDF

157. State of the Art Review on Autonomous Surface Vehicle Maneuvering Assessment

Author

Jalal, N. I., Ayob, A. F., Rahman, S. A., Jamaludin, S., Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zhang, Junjie James, Series Editor, Isa, Khalid, editor, Md. Zain, Zainah, editor, Mohd-Mokhtar, Rosmiwati, editor, Mat Noh, Maziyah, editor, Ismail, Zool H., editor, Yusof, Ahmad Anas, editor, Mohamad Ayob, Ahmad Faisal, editor, Azhar Ali, Syed Saad, editor, and Abdul Kadir, Herdawatie, editor

Published
2022
Full Text
View/download PDF

158. A scalable sparse Cholesky based approach for learning high-dimensional covariance matrices in ordered data

Author

Khare, K, Oh, SY, Rahman, S, and Rajaratnam, B

Subjects
Covariance estimation, High-dimensional data, Sparse Cholesky, Penalized likelihood, Mental Health, Artificial Intelligence and Image Processing, Cognitive Sciences, Artificial Intelligence & Image Processing, Information Systems
Abstract

Covariance estimation for high-dimensional datasets is a fundamental problem in machine learning, and has numerous applications. In these high-dimensional settings the number of features or variables p is typically larger than the sample size n. A popular way of tackling this challenge is to induce sparsity in the covariance matrix, its inverse or a relevant transformation. In many applications, the data come with a natural ordering. In such settings, methods inducing sparsity in the Cholesky parameter of the inverse covariance matrix can be quite useful. Such methods are also better positioned to yield a positive definite estimate of the covariance matrix, a critical requirement for several downstream applications. Despite some important advances in this area, a principled approach to general sparse-Cholesky based covariance estimation with both statistical and algorithmic convergence safeguards has been elusive. In particular, the two popular likelihood based methods proposed in the literature either do not lead to a well-defined estimator in high-dimensional settings, or consider only a restrictive class of models. In this paper, we propose a principled and general method for sparse-Cholesky based covariance estimation that aims to overcome some of the shortcomings of current methods, but retains their respective strengths. We obtain a jointly convex formulation for our objective function, and show that it leads to rigorous convergence guarantees and well-defined estimators, even when p> n. Very importantly, the approach always leads to a positive definite and symmetric estimator of the covariance matrix. We establish both high-dimensional estimation and selection consistency, and also demonstrate excellent finite sample performance on simulated/real data.

Published
2019

159. Effects of water shortage on food legume crops

Author

Kholoud Ahmad Batayneh, Marwa Gaber Abdel Razzaq, Tiba Ghazuan, Huda Sabah Jabr, Noora M. Hameed, Rahman S. Zabibah, Fahad Najd Obaid, Ali Jalil Obaid, Hayfaa Attia Thijail, Salam Ahjel, Ghada Safaa, and Hatem Ghaleb Maabreh

Subjects
drought, field studies, food legumes, food security, soybean, sustainable production, Environmental sciences, GE1-350, Science
Abstract

The clamor for agricultural resources is being pushed up by global climatic change and population growth. Such consequences are huge challenges to food security, wreaking havoc on the agroecosystem and causing biotic and abiotic stresses in plants, which in turn cause metabolic and physiological problems. Food legume crops contribute to food security in underdeveloped countries by playing an essential role in conservation farming methods. Drought has, nevertheless, exhibited a negative impact on productivity in many parts of the world. While water shortage is a significant abiotic barrier to legume crop output, drought impacts differ depending on drought timing, agro-climatic area, soil texture, and legume species. To resolve these concerns, we gathered data from the recent publications that revealed drought-induced changes in the production of monoculture legumes in field circumstances and examined it using meta-analysis approaches. Research findings revealed that the water cut’s quantity was strongly associated with a decrease in yield. However, the magnitude of the effect differed depending on the phenological stage of the drought and legume species. The legumes such as groundnut and lentil exhibited the lowest yield reductions (31.2% and 19.6% for groundnut and lentil, accordingly), however, the biggest yield drop (39.8%) facing the maximum water reduction was for faba bean.

Published
2022
Full Text
View/download PDF

160. Trypsin-based diet for the growth indices of Spanish mackerel

Author

Waleed K. Alkhafaje, Holya A. Lafta, Ali Abdulhussain Fadhil, Ali Hussein Adhab, Ali Jalil Obaid, Rahman S. Zabibah, Enas R. Alwaily, Doha Karim Khodir, Heba Takleef al salami, Mansour Almouh, Hamdan Naef, and Mahmoud M. Abbas

Subjects
protease, enzyme, trypsin, fish diet, spanish mackerel, Environmental sciences, GE1-350, Science
Abstract

To protect the sustainability of the aquaculture industry, fishmeal is being replaced with alternative feed ingredients such as plant-based protein components. However, most plant-based feedstuffs contain a wide array of anti-nutritional factors. These factors can potentially hinder nutrient consumption, which in turn can interfere with fish health and performance. Protease enzyme supplements can reverse the impacts of anti-nutritional factors and enhance fish growth. This study aimed to incorporate the trypsin enzyme into the food of Spanish mackerel and explore its effects on growth factors, body composition, and blood biochemical parameters. This study was a fully-randomized experiment with three treatments and three replications. This experiment was carried out as a completely randomized design with three treatments and three replications, and the trypsin enzyme was added to the fish diet at different levels: 0%, 0.015%, and 0.025%. For a timeframe of 60 days, the fish were given experimental diets. The growth indices considered were: specific growth rate (SGR), protein efficiency ratio (PER), condition factor (CF), feed conversion ratio (FCR), weight gain percentage (WGP), and hepatic steatosis index (HSI). The results showed that FCR, PER, SGR, and WGP at enzyme levels of 0.015% and 0.025% were substantially different from the control group.

Published
2022
Full Text
View/download PDF

170. Analogy in Secondary Physics Teaching-Learning: Teachers' Views and Practices in Bangladesh

Author

Toma, Mohosina Jabin and Rahman, S. M. Hafizur

Abstract

Analogical reasoning is a basic learning mechanism. Analogy in teaching science is a very popular pedagogical approach in many countries. The use of analogy is not recognized as one of the formal teaching learning strategies to facilitate students' science learning in Bangladesh. In secondary science teaching, teachers' unconscious and unsystematic use of analogy cause misunderstanding for learners which is a barrier to promote scientific literacy among students. This study investigated secondary physics teachers' views and practices of analogy as a teaching learning strategy in the context of Bangladesh. It followed explanatory sequential mixed method design. Quantitative data was collected through questionnaire (Likert scale) from 55 secondary school physics teachers. Case studies were conducted for qualitative data through lesson observations, interviews and document analysis. The findings reveal that teachers consider analogy to be an effective tool, but they have less idea as it was not embedded in any of their professional programs or in-service trainings. It is hard to find any quality source of analogies for secondary physics in Bangladesh. They even do not know about any models of using analogy yet which leads to inappropriate use of analogies. Teachers mostly think that analogy would be more suitable in the context of Bangladesh as we have shortage of instruments and teaching aids. This study will inform teacher educators about the deficiency of guideline for our teachers about using analogy in physics teaching. Textbook writers will also get guideline about which analogies are preferable. Further research can be conducted on which types of analogies in our science textbooks are suitable and which are not. Which models of using analogy are preferred by teachers can also be explored.

Published
2021

173. Some Subclasses of Univalent and Bi-Univalent Functions Related to K-Fibonacci Numbers and Modified Sigmoid Function

Author

Amal Madhi Rashid and Abdul Rahman S. Juma

Subjects
Bi-univalent function, Borel distribution, Fibonacci numbers, Modified sigmoid function, Univalent function, Science
Abstract

This paper is interested in certain subclasses of univalent and bi-univalent functions concerning to shell- like curves connected with k-Fibonacci numbers involving modified Sigmoid activation function θ(t)=2/(1+e^(-t) ) ,t ≥0 in unit disk |z|

Published
2023
Full Text
View/download PDF

175. Microscopic and molecular detection of piroplasms among sheep in Upper Egypt

Author

Dyab, Ahmed Kamal, primary, Mohamed, Sara Abdel-Aal, additional, Abdel-Aziz, Fatma Mohamed, additional, Gareh, Ahmed, additional, Osman, Fathy, additional, Elgohary, Fatma A., additional, Hassan, Ehssan Ahmed, additional, Alsowayeh, Noorah, additional, Alzaylaee, Hind, additional, Ahmed, Abd Al-Rahman S., additional, Bravo-Barriga, Daniel, additional, and Elmahallawy, Ehab Kotb, additional

Published
2024
Full Text
View/download PDF

178. Towards Automated Detection of Tomato Leaf Diseases

Author

Ahmed, Md. Redwan, primary, Haque, Rezaul, additional, Rahman, S M Arafat, additional, Afridi, Sheikh, additional, Abir, Md Fahim Faez, additional, Hossain, MD Forhad, additional, Khan, M. Saddam Hossain, additional, and Uddin, Md. Mohsin, additional

Published
2024
Full Text
View/download PDF

181. Successful treatment of recurrent visceral leishmaniasis relapse in an immunocompetent adult female with functional hypopituitarism in Bangladesh

Author

Hannan, Tabiha Binte, primary, Hossain, Zazeba, additional, Roy, Utshab, additional, Rahman, S. M. Mahbubur, additional, Rahman, Md Sadiqur, additional, Sabah, Sadia, additional, Rahat, Md. Abu, additional, Chowdhury, Rajashree, additional, Hossain, Faria, additional, Mondal, Dinesh, additional, Saha, Shampa, additional, Haq, Tahniyah, additional, Alam, Md Rafiqul, additional, and Chowdhury, Fazle Rabbi, additional

Published
2024
Full Text
View/download PDF

187. Correlation Between the Subtype of Anti-HLA Donor Specific Antibodies and Rejection Assessed by Molecular Microscope

Author

Fernandez Valledor, A., primary, Moeller, C.M., additional, Baranowska, J., additional, Lee, C., additional, Rubinstein, G., additional, Rahman, S., additional, Mehlman, Y., additional, Rahman, A., additional, Lotan, D., additional, Oren, D., additional, DeFilippis, E., additional, Bae, D., additional, Oh, K., additional, Majure, D., additional, Theodoropoulos, K., additional, Lin, E., additional, Topkara, V., additional, Colombo, P., additional, Yuzefpolskaya, M., additional, Fried, J., additional, Raikhelkar, J., additional, Clerkin, K., additional, Latif, F., additional, Sayer, G., additional, and Uriel, N., additional

Published
2024
Full Text
View/download PDF

188. History of Malignancy and Rejection Outcomes Assessed by Molecular Microscope (MMDx)

Author

Rubinstein, G., primary, Fernandez Valledor, A., additional, Moeller, C.M., additional, Slomovich, S., additional, Oren, D., additional, Baranowska, J., additional, Rahman, S., additional, Lee, C., additional, Oh, K., additional, Bae, D., additional, Topkara, V., additional, Yuzefpolskaya, M., additional, Colombo, P., additional, Lotan, D., additional, DeFilippis, E.M., additional, Theodoropoulos, K., additional, Fried, J., additional, Lin, E., additional, Majure, D., additional, Clerkin, K., additional, Latif, F., additional, Sayer, G., additional, Uriel, N., additional, and Raikhelkar, J., additional

Published
2024
Full Text
View/download PDF

189. Consistent Sublingual Microvascular Health Among Heart Transplant Recipients Regardless of Coronary Allograft Vasculopathy Status

Author

Moeller, C.M., primary, Valledor, A. Fernandez, additional, Oren, D., additional, Lee, C., additional, Rahman, S., additional, Baranowska, J., additional, Rubinstein, G., additional, Lotan, D., additional, DeFilippis, E.M., additional, Raikhelkar, J.K., additional, Clerkin, K.J., additional, Fried, J.A., additional, Latif, F., additional, Uriel, N., additional, and Sayer, G.T., additional

Published
2024
Full Text
View/download PDF

190. Sublingual Microcirculation in Acute Mechanical Circulatory Support in Cardiogenic Shock

Author

Rahman, S., primary, Lee, C., additional, Baranowska, J., additional, Moeller, C., additional, Fernandez Valledor, A., additional, Rubinstein, G., additional, Oren, D., additional, Miller, T., additional, Lotan, D., additional, Rahman, A., additional, Kaku, Y., additional, Raikhelkar, J., additional, Takeda, K., additional, DeFilippis, E., additional, Yuzefpolskaya, M., additional, Colombo, P., additional, Majure, D., additional, Clerkin, K., additional, Burkhoff, D., additional, Sayer, G., additional, Uriel, N., additional, and Fried, J., additional

Published
2024
Full Text
View/download PDF

191. Implications of ABO Unmatched Donors on Cardiac Allograft Rejection Assessed by the Molecular Microscope (MMDx)

Author

Moeller, C.M., primary, Valledor, A. Fernandez, additional, Oren, D., additional, Baranowska, J., additional, Rubinstein, G., additional, Lee, C., additional, Rahman, S., additional, Oh, K., additional, Bae, D., additional, Lotan, D., additional, DeFilippis, E.M., additional, Fried, J., additional, Theodoropoulos, K., additional, Clerkin, K., additional, Latif, F., additional, Raikhelkar, J., additional, Uriel, N., additional, and Sayer, G.T., additional

Published
2024
Full Text
View/download PDF

192. Molecular Microscope Findings in Low-Grade Histological Rejection: A Less Benign Reality Than Assumed

Author

Rubinstein, G., primary, Fernandez Valledor, A., additional, Moeller, C.M., additional, Slomovich, S., additional, Oren, D., additional, Baranowska, J., additional, Rahman, S., additional, Lee, C., additional, Oh, K., additional, Bae, D., additional, Raikhelkar, J., additional, Topkara, V., additional, Lotan, D., additional, DeFilippis, E.M., additional, Theodoropoulos, K., additional, Fried, J., additional, Lin, E., additional, Majure, D., additional, Clerkin, K., additional, Colombo, P., additional, Yuzefpolskaya, M., additional, Latif, F., additional, Sayer, G., additional, and Uriel, N., additional

Published
2024
Full Text
View/download PDF

193. Racial and Ethnic Disparities in De-Novo Donor Specific Antibodies (DSA) and Rejection Rates in Heart Transplant Recipients Assessed by Molecular Microscope

Author

Oren, D., primary, Moeller, C.M., additional, Fernandez Valledor, A., additional, Rubinstein, G., additional, Baranowska, J., additional, Rahman, S., additional, Lee, C., additional, Oh, K., additional, Bae, D., additional, Raikhelkar, J.K., additional, Topkara, V., additional, Yuzefpolskaya, M., additional, Colombo, P., additional, Lotan, D., additional, DeFilippis, E.M., additional, Theodoropoulos, K., additional, Fried, J., additional, Lin, E., additional, Majure, D., additional, Clerkin, K., additional, Latif, F., additional, Sayer, G., additional, and Uriel, N., additional

Published
2024
Full Text
View/download PDF

194. Sex Differences in Allograft Rejection After Heart Transplantation (HT). Molecular Microscope (MMDx) Results

Author

Moeller, C., primary, Fernandez Valledor, A., additional, Rahman, S., additional, Oren, D., additional, Lotan, D., additional, Rubinstein, G., additional, Mehlman, Y., additional, Raikhelkar, J., additional, Yuzefpolskaya, M., additional, DeFilippis, E.M., additional, Fried, J., additional, Clerkin, K., additional, Uriel, N., additional, and Sayer, G.T., additional

Published
2024
Full Text
View/download PDF

195. Microcirculatory Dysfunction in Cardiogenic Shock

Author

Rahman, S., primary, Baranowska, J., additional, Lee, C., additional, Miller, T., additional, Moeller, C., additional, Fernandez Valledor, A., additional, Oren, D., additional, Rubinstein, G., additional, Rahman, A., additional, Raikhelkar, J., additional, Bae, D., additional, Oh, K., additional, DeFilippis, E., additional, Lotan, D., additional, Topkara, V., additional, Yuzefpolskaya, M., additional, Colombo, P., additional, Kaku, Y., additional, Takeda, K., additional, Clerkin, K., additional, Majure, D., additional, Burkhoff, D., additional, Sayer, G., additional, Fried, J., additional, and Uriel, N., additional

Published
2024
Full Text
View/download PDF

196. Molecular Microscope (MMDx) Results in the Sensitized Heart Transplant Recipient

Author

Rahman, A., primary, Moeller, C., additional, Fernandez Valledor, A., additional, Rzechorzek, W., additional, Rahman, S., additional, Baranowska, J., additional, Rubinstein, G., additional, Oren, D., additional, Lee, C., additional, Oh, K., additional, Bae, D., additional, Raikhelkar, J., additional, Lotan, D., additional, DeFilippis, E., additional, Theodoropoulos, K., additional, Fried, J., additional, Clerkin, K., additional, Latif, F., additional, Sayer, G., additional, and Uriel, N., additional

Published
2024
Full Text
View/download PDF

197. Association of Sex Mismatch with Allograft Rejection After Heart Transplantation (HT) - Molecular Microscope (MMDx) Results

Author

Baranowska, J., primary, Moeller, C.M., additional, Fernandez Valledor, A., additional, Regan, M., additional, Rahman, S., additional, Lee, C., additional, Oren, D., additional, Rubinstein, G., additional, Oh, K., additional, Rahman, A., additional, Bae, D., additional, Topkara, V., additional, Yuzefpolskaya, M., additional, Raikhelkar, J., additional, Lotan, D., additional, DeFilippis, E., additional, Theodoropoulos, K., additional, Fried, J., additional, Lin, E., additional, Majure, D., additional, Clerkin, K., additional, Latif, F., additional, Colombo, P., additional, Sayer, G., additional, and Uriel, N., additional

Published
2024
Full Text
View/download PDF

198. Clinical Utility of Molecular Microscope Diagnostic System (MMDx) in Heart Transplant Recipients: Moving Towards a New Paradigm

Author

Fernandez Valledor, A., primary, Moeller, C.M., additional, Rubinstein, G., additional, Rahman, S., additional, Baranowska, J., additional, Lee, C., additional, Oren, D., additional, Mehlman, Y., additional, Slomovich, S., additional, Lindekens, J., additional, Fuselier, B., additional, Salazar, R., additional, Hennecken, C.A., additional, DeFilippis, E.M., additional, Theodoropoulos, K., additional, Topkara, V., additional, Yuzefpolskaya, M., additional, Colombo, P., additional, Lotan, D., additional, Bae, D., additional, Lin, E., additional, Oh, K., additional, Majure, D., additional, Fried, J., additional, Raikhelkar, J., additional, Clerkin, K., additional, Latif, F., additional, Sayer, G.T., additional, and Uriel, N., additional

Published
2024
Full Text
View/download PDF

199. Inflammatory Cardiomyopathies are Associated with Higher Rates of T-Cell Mediated Rejection. Molecular Microscope Results

Author

Valledor, A. Fernandez, primary, Moeller, C.M., additional, Shah, R., additional, Rubinstein, G., additional, Baranowska, J., additional, Oren, D., additional, Rahman, S., additional, Lee, C., additional, Rahman, A., additional, Oh, K., additional, Lotan, D., additional, DeFilippis, E.M., additional, Bae, D., additional, Clerkin, K., additional, Theodoropoulos, K., additional, Fried, J., additional, Raikhelkar, J., additional, Sayer, G.T., additional, Uriel, N., additional, and Latif, F., additional

Published
2024
Full Text
View/download PDF

200. Impact of MTOR Inhibitors on Heart Allograft Rejection Using Tissue-Based Gene-Expression Profiling. Molecular Microscope (MMDx) Results

Author

Fernandez Valledor, A., primary, Moeller, C.M., additional, Rubinstein, G., additional, Oren, D., additional, Rahman, S., additional, Baranowska, J., additional, Lee, C., additional, Slomovich, S., additional, Lotan, D., additional, Fried, J., additional, DeFilippis, E.M., additional, Raikhelkar, J., additional, Theodoropoulos, K., additional, Latif, F., additional, Yuzefpolskaya, M., additional, Clerkin, K., additional, Sayer, G.T., additional, Uriel, N., additional, and Majure, D., additional

Published
2024
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results