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Analysis of Rate One Quasi-Orthogonal Space-Time Block Coding over Rayleigh Fading Channel

International Journal of Communications, Network and System Sciences 2014年第6期7卷 196-202页

作者： md. abdullah al amin ranju Ragib Shakil Rafi Electronics & Communication Engineering Khulna University Khulna Bangladesh

Full-rate is very important in any data transmission coding. For transmitting data at low bit rate than full-rate code, higher modulation scheme is required. But it is impossible to design full rate orthogonal designs with complex constellation for more than two transmit antennas. Only alamouti code provides full-rate for two transmit antennas. In this paper, Bit Error Rate (BER) is calculated for Quasi-Orthogonal Space-time Block Coding (QOSTBC). Here we work with Rayleigh fading channel. We consider the codes which decodes pairs of symbols instead of simple separate decoding like Orthogonal Space-Time Block Coding. In Quasi-Orthogonal Space-time Block Code full-rate is achieved but full-diversity is sacrificed. Diversity is the most important techniques for providing reliable communication over fading channels. One of the diversity techniques that uses multiple transmit and/or receive antennas is space diversity. Multiple antenna technique provides a space diversity to struggle with the fading without necessarily sacrificing bandwidth resources, so the excellent solutions of removing the fading of the channel for broadband wireless communications is using space diversity. Then, with the constellation rotation of the symbol, rotated version of Quasi-Orthogonal Space-Time Block Code is generated. It provides full diversity. We simulate BER for QOSTBC, rotated QOSTBC, orthogonal STBC and for uncoded system. The simulation result shows that QOSTBC and rotated QOSTBC perform better than other systems. It shows that QOSTBC provides a full transmission rate but that rotated QOSTBC provides the full rate with the full diversity.

关键词： Orthogonal Space-Time Block Coding Quasi-Orthogonal Space-Time Block Coding Rayleigh Fading Rotated Quasi-Orthogonal Space-Time Block Coding

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Adequate Closed Form Wave Solutions to the Generalized KdV Equation in Mathematical Physics

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Journal of Applied Mathematics and Physics 2024年第6期12卷 2069-2082页

作者： md. Munnu Miah md. al amin Meia md. Matiur Rahman Sarker Ahammodullah Hasan Department of Mathematics Islamic University Kushtia Bangladesh Department of Mathematics Government Titumir College Dhaka Bangladesh Department of Pharmacy University of Asia Pacific Dhaka Bangladesh

In this paper, we consider the generalized Korteweg-de-Vries (KdV) equations which are remarkable models of the water waves mechanics, the shallow water waves, the quantum mechanics, the ion acoustic waves in plasma, the electro-hydro-dynamical model for local electric field, signal processing waves through optical fibers, etc. We determine the useful and further general exact traveling wave solutions of the above mentioned NLDEs by applying the exp(−τ(ξ))-expansion method by aid of traveling wave transformations. Furthermore, we explain the physical significance of the obtained solutions of its definite values of the involved parameters with graphic representations in order to know the physical phenomena. Finally, we show that the exp(−τ(ξ))-expansion method is convenient, powerful, straightforward and provide more general solutions and can be helping to examine vast amount of travelling wave solutions to the other different kinds of NLDEs.

关键词： The Generalized KdV Equation The exp(-τ(ξ)) -Expansion Method Travelling Wave Solitary Wave

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Advances in DNA methylation and its role in cytoplasmic male sterility in higher plants

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Journal of Integrative Agriculture 2024年第1期23卷 1-19页

作者： Atiqur Rahman Hasan Sofiur Rahman Shakil Uddin Naima Sultana Shirin Akhter Ujjal Kumar Nath Shamsun Nahar Begum Mazadul Islam Afroz Naznin Nurul amin Sharif Ahmed Akbar Hossain Department of Genetics and Plant Breeding Bangladesh Agricultural UniversityMymensingh 2202Bangladesh Plant Breeding Division Bangladesh Institute of Nuclear AgricultureMymensingh 2202Bangladesh Tuber Crop Research Centre Bangladesh Agricultural Research Institute(BARI)Joydebpur 1701Bangladesh Horticulture Research Centre Bangladesh Agricultural Research Institute(BARI)Joydebpur 1701Bangladesh Biotechnology Division Bangladesh Agricultural Research Institute(BARI)Joydebpur 1701Bangladesh International Rice Research Institute Bangladesh OfficeDhaka 1213Bangladesh Division of Soil Science Bangladesh Wheat and Maize Research InstituteDinajpur 5200Bangladesh

The impact of epigenetic modifications like DNA methylation on plant phenotypes has expanded the possibilities for crop *** methylation plays a part in the regulation of both the chromatin structure and gene expression,and the enzyme involved,DNA methyltransferase,executes the methylation process within the plant *** regulating crucial biological pathways,epigenetic changes actively contribute to the creation of the ***,epigenome editing may assist in overcoming some of the drawbacks of genome editing,which can have minor off-target consequences and merely facilitate the loss of a gene’s *** drawbacks include gene knockout,which can have such off-target *** review provides examples of several molecular characteristics of DNA methylation,as well as some plant physiological processes that are impacted by these epigenetic changes in the *** also discuss how DNA alterations might be used to improve crops and meet the demands of sustainable and environmentally-friendly farming.

关键词： DNA methylation epigenetics CMS male sterility chromatin architecture gene expression higher plants

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The prolactin receptor(PRLR)gene is linked to and associated with the comorbidity of depression and type 2 diabetes in Italian families

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Genes & Diseases 2024年第3期11卷 15-17页

作者： Mutaz amin Rongling Wu Teodor T.Postolache Claudia Gragnoli INSERM US14-OrphanetParis 75014France University of Paris Paris 75013France Department of Biochemistryand Molecular Biology Faculty of MedicineAl-Neelain UniversityKhartoum 11121Sudan Department of Public Health Sciences Penn State College of MedicineHersheyPA 17033USA Department of Statistics Penn State College of MedicineHersheyPA 17033USA Mood and Anxiety Program Department of PsychiatryUniversity of Maryland School of MedicineBaltimoreMD 21201USA Rocky Mountain Mental Illness Research Education and Clinical Center(MIRECC) Veterans Integrated Service Network(VISN)19Military and Veteran Microbiome:Consortium for Research and Education(MVM-CoRE)DenverCO80246USA Mental illness Research Education and Clinical Center(MIRECC) Veterans Integrated Service Network(VISN)5VA Capitol Health Care NetworkBaltimoreMD 21090USA Division of Endocrinology Department of MedicineCreighton University School of MedicineOmahaNE 68124USA Molecular Biology Laboratory Bios Biotech Multi-Diagnostic Health CenterRome 00197Italy

Major depressive disorder(md.)and type 2 diabetes(T2D)are two common complex multifactorial disorders that share several genetic and environmental risk factors such as hypercortisolism and related genes'riskvariants within the stress response and the neuroendocrine hypothalamicpituitary *** stress,the pituitary gland releases prolactin(PRL),whose effects are pleiotropic and include mood control and insulin secretion from the beta cells.1 Variations in the prolactin receptor(PRLR)gene are associated in rodent models with stress level,depressionlike behavior,2 and hepatic insulin sensitivity3 and in humans with maternal glucose homeostasis and gestational diabetes.

关键词： diabetes prolactin pituitary

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Revealing connectivity in residential Architecture: An algorithmic approach to extracting adjacency matrices from floor plans

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Frontiers of Architectural Research 2024年第2期13卷 370-386页

作者： Mohammad amin Moradi Omid Mohammadrashidi Navid Niazkar Morteza Rahbar School of Architecture and Engineering University College of RouzbahanMazandaranIran School of Architecture Islamic Azad UniversitySafaDasht CampusTehranIran A.James Clark School of Engineering University of MarylandCollege ParkMDUSA School of Architecture and Environmental Design Iran University of Science and TechnologyTehranIran

In today's world, various approaches and parameters exist for designing a plan and determining its spatial, placement. Hence, various modes for identifying crucial locations can be explored when an architectural plan is designed in different dimensions. While designing all these modes takes considerable time, there are numerous potential applications for artificial intelligence (AI) in this domain. This study aims to compute and use an adjacency matrix to generate architectural residential plans. Additionally, it develops a plan generation algorithm in Rhinoceros software, utilizing the Grasshopper plugin to create a dataset of architectural plans. In the following step, the data was entered into a neural network to identify the architectural plan's type, furniture, icons, and use of spaces, which was achieved using YOLOv4, EfficientDet, YOLOv5, DetectoRS, and RetinaNet. The algorithm's execution, testing, and training were conducted using Darknet and PyTorch. The research dataset comprises 12,000 plans, with 70% employed in the training phase and 30% in the testing phase. The network was appropriately trained practically and precisely in relation to an average precision (AP) resulting of 91.50%. After detecting the types of space use, the main research algorithm has been designed and coded, which includes determining the adjacency matrix of architectural plan spaces in seven stages. all research processes were conducted in Python, including dataset preparation, network object detection, and adjacency matrix algorithm design. Finally, the adjacency matrix is given to the input of the proposed plan generator network, which consequently, based on the resulting adjacency, obtains different placement modes for spaces and furniture.

关键词： algorithm design Adjacency matrix Generate floor plan Detection plan

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The role of melatonin receptor 1B gene(MTNR1B)in the susceptibility to depression and type 2 diabetes comorbidity

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Genes & Diseases 2024年第3期11卷 113-115页

作者： Mutaz amin Benjamin Rafla Rongling Wu Teodor T.Postolache Cclaudia Gragnoli INSERM US14-OrphanetParis 75014France Department of Biochemistry and Molecular Biology Faculty of MedicineAl-Neelain UniversityKhartoum 11121Sudan Division of Endocrinology Department of MedicineCreighton University School of MedicineOmahaNE 68124USA Department of Public Health Sciences Penn State College of MedicineHersheyPA 17033USA Department of Statistics Penn State College of MedicineHersheyPA 17033USA Mood and Anxiety Program Department of PsychiatryUniversity of Maryland School of MedicineBaltimoreMD 21201USA Rocky Mountain Mental llness Research Education and Clinical Center(MIRECC) Veterans Integrated Service Network(VISN)19Military and Veteran Microbiome:Consortium for Research and Education(MVM-CoRE)DenverCO 80246USA Mental Ilness Research Education and Clinical Center(MIRECC) Veterans Integrated Service Network(VISN)5VA Capitol Health Care NetworkBaltimoreMD 21090USA Molecular Biology Laboratory Bios Biotech Multi-Diagnostic Health CenterRome00197Italy

Melatonin is an endogenous monoamine hormone secreted by the pineal *** signaling has been shown to play a role in circadian rhythm regulation,lipid and glucose metabolism,and obesity,and it has anti-inflammatory and antioxidant *** melatonin receptor 1B gene(MTNR1B)is expressed in,among other tissues,the brain and pancreatic beta cells,and risk variants for T2D have been reported as impairing early insulin secretion and increasing fasting glucose levels.^(1) Variants in the MTNR1B gene also have been reported in patients with depression(md.).

关键词： MTNR1B metabolism properties.

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In Vitro Propagation of Three Strawberry Cultivars through Runner Tips Culture

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American Journal of Plant Sciences 2023年第11期14卷 1296-1304页

作者： Sussmita Karmaker md. Mukhtar Hossain md. aminul Hoque md. Abdul Kaium md. al amin md. Saidul Islam Department of Agronomy and Agricultural Extension Faculty of Agriculture Rajshahi University Rajshahi Bangladesh Department of Crop Science and Technology Faculty of Agriculture Rajshahi University Rajshahi Bangladesh

At the Genetics and Plant Breeding Laboratory of the Department of Agronomy and Agricultural Extension, University of Rajshahi, Bangladesh, strawberry in vitro propagation was done. Five Benzylaminopurine (BAP) concentrations were utilized for shoot induction—0.0 mg/L (Control), 0.5 mg/L, 1.0 mg/L, 1.5 mg/L, and 2.0 mg/L and five Indole Buteric Acid (IBA) concentrations—0.0 mg/L(Control), 0.5 mg/L, 1.0 mg/L, 1.5 mg/L, and 2.0 mg/l—were used for the induction of the root. The highest mean amount of shoots (eight) and length of the shoot (3.40 cm) were observed at a concentration of BAP of 0.5 mg/L. Festival also had the highest mean amount of leaves (6) when we used the identical concentration, while RABI-3 and Camarosa did the least well. The IBA of 0.5 mg/L concentration of rooting performed the best across all metrics tested among the five concentrations. The longest (3.3 cm) roots and most roots (7) were likewise obtained from this concentration in Festival. However, RABI-3 and Camarosa performed worse than Festival in the same concentration. Half-strength MS media without IBA concentration showed no response regarding root induction for each of the three cultivars.

关键词： Strawberry Proliferation Propagation Shoot Induction Root Induction

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Evaluation of Genetic Divergence in Various Potato Genotypes Grown in Bangladesh through Different Traits Assessment

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American Journal of Plant Sciences 2023年第11期14卷 1235-1247页

作者： md. Mukhtar Hossain md. Abdul Kaium md. al amin Tabaraka Binte ali Nusrat Jahan md.Nasim Uddin Department of Crop Science and Technology Faculty of Agriculture Rajshahi University Rajshahi Bangladesh

The goal of the study was to quantify the genetic diversity of different potato varieties. Five groups were named to classify the 25 genres of potatoes as: Cluster I (Lalpakri, Diamond), Cluster II (Hagrai, Green Mountain, G.M.O., Elvera), Cluster III (Atlantic, Shepody, Raja, Fundy, Multa, Granulla, Shibilati, Japanese Red), Cluster IV (Atlas, Brondy, Yucon Gold, Monona, Petrones, Cheroki), and Cluster V (Calwhite, Prelude, allblue, Russet, Burbank, TPS-67). The highest and lowest genotypes are found in Clusters III and I, respectively. The two groups’ maximum inter-cluster distance (the cluster’s distance between them) demonstrates the enormous diversity between Clusters II & III. Cluster III had the greatest intra-cluster distance (distance within a set), whereas Cluster V had the smallest. In most cases, the distance between gaps was more significant than the distance within the holes, showing greater genetic diversity between different groups’ genotypes. The highest, second highest, and third highest eigenvalues, accompanying the positive canonical values for Vectors I and II of three characteristics: average tuber weight in each plant, the tubers number in each plant, and the eyes number in each tuber, showed the most outstanding contribution to the complete difference between genotypes. Of the nine features, the smaller leaves number in each plant, the shorter plant height, the more minor genotypes, the fewer eyes per tube generated from Cluster I, the maximum height of the plants, the high-quality tubers in each plant, the tubers number in each plant, the fresh weight in each plant, and the leaf number in each plant from Cluster II could be chosen in the role of parents in this program for hybridization. Given the size of the genetic distance, the various characteristics that contribute to the overall difference, and the average population size, Hagrai, Green Mountain, O.M.G., Elvera Cluster II and Cluster I, Lalpakri, and Diamond genotypes can be regarded a

关键词： Genetic Divergence Potato Genotypes Different Traits Cluster Analysis Principal Component Analysis

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Nutritional, Textural, Sensory Properties and Storage Stability Evaluation of Newly Formulated Strawberry Bar

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Food and Nutrition Sciences 2023年第4期14卷 287-299页

作者： Nargis Akter md. Sajib al Reza md. Esrafil md. al amin Sonyia Akter Neaz Morshed Reza md. Nazmul Huda Nasim Pratima Roy Dina Department of Food Technology and Nutritional Science Faculty of Life Science Mawlana Bhashani Science and Technology University Santosh Bangladesh Department of Biological Sciences Graduate School of Science Tokyo Metropolitan University Hachioji Japan Department of Chemistry and Biochemistry The University of Texas at Arlington Arlington USA

An analytical study was conducted to develop a strawberry bar and analysis of the nutritional quality and storage stability of a newly formulated strawberry bar. In proximate analysis moisture, ash, pH, acidity, vitamin C, total phenolic content, and antioxidant of strawberry pulp were found 82%, 0.5%, 2.57, 1.38%, 49 mg/100g, 0.33%, 75.17% whereas, in the strawberry bar, it was found 18%, 0.71%, 2.10, 1.10%, 22 mg/100g, 0.14%, 56.13% respectively. For textural properties analysis, the textural profile of the strawberry bar such as hardness, factorability, viscosity, cohesiveness, adhesiveness, springiness, gumminess, chewiness, probe diameter, threshold, filtering range of strawberry bar was found 5.538 × 104 N/m, 0.000 N/m2, 1.687 × 104 N/m2, 0.6636, 2.908 × 103 J/m3, 0.8664, 3.675 × 104 N/m2, 3.184 × 104 N/m2, 20.000 mm, 5 N, 0.4 N respectively whereas the maximum level was 17.4 N at 29.628 seconds and the minimum level was -5.3 N at 30.166 seconds. The sensory evaluation of the strawberry bar was conducted based on nine-point hedonic scales. The sensory evaluation results indicated that the appearance of the strawberry bar was liked very much and the taste, texture, color, aroma, and overall acceptability of the strawberry bar were liked moderately by panelists. In microbiological analysis, the Total Viable Count (TVC) and Total Coliform Count (TCC) of the strawberry bar were found safe levels for up to third days. But on the sixth day, the TCC of the strawberry bar was not found and the TVC of the strawberry bar was found 17 × 104 cfu/g respectively which is higher than the permitted value (Gulf Standard: 105 cfu/g). From the microbial point of view, the newly formulated strawberry bar was safe to consume for up to 3 days but not for 6 days.

关键词： Strawberry Pulp Strawberry Bar Antioxidant Sensory Evaluation Texture Gallic Acid

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Design of a Simple Integrated Coupler for SPP Excitation in a Dielectric Coated Ag Thin Film

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Chinese Physics Letters 2014年第6期31卷 94-97页

作者： Rakibul Hasan Sagor md. Ruhul amin md. Ghulam Saber Department of Electrical and Electronic Engineering Islamic University of Technology Board Bazar Gazipur-1704 Bangladesh

A simple integrated coupler is proposed for the efficient excitation of surface plasmon polariton （SPP） mode in a thin metal film. The SPP mode is generated in a single Ag-dielectric interface by the incident field and coupled with an Ag thin film. The coupling efficiency at different wavelengths using two different dielectrics, gallium lanthanum sulfide （GLS） and aluminum gallium arsenide （AIGaAs） is calculated by analyzing the SPP propagation dynamics with the finite difference time domain method. A maximum coupling efficiency of 70~ is obtained at a wavelength of 46Ohm when GLS is used, whereas the corresponding value obtained for A1GaAs is 60~o at 56Onto. The proposed structure can be used to excite SPPs in a nano-thin film from an external bulky source and is easier to fabricate since a single interface metal-dielectric configuration is used to excite the metal-thin film.

关键词： Efficiency

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