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Growth performance of Avicennia officinalis L. and the effect of spacing on growth and yield of trees planted in the Western coastal belt of Bangladesh

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Journal of Forestry Research 2014年第4期25卷 835-838页

作者： md. abdul Quddus Miah Sk. Ahiul Islam md. Ahsan Habib md. Golam Moula Plantation Trial Unit Division Bangladesh Forest Research Institute Rupatoli Barisal-8206 Bangladesh

A trial ofAvicennia officinalis L. with five different spacings was conducted in the newly accreted lands along the western coastline （Patuakhali district） of Bangladesh since 1993 to assess growth perform- ance and the effect of spacing on tree growth. Data on tree density, height, diameter, bole height, crown diameter were recorded and ana- lyzed when the stand was 19 years old. Mean height ranged from 12.89-13.52 m and diameter at breast height （dbh） from 26.57-32.16 cm in plots of different spacings. The mean annual height increment ranged from 0,67-0.71 m, mean annual diameter increment from 1.40-1.69 cm and wood volume from 6.02-10.04 ***＇*** in different treatments. Significantly greater diameter （32.16 cm） and wood volume （10.04 ***.a-1） were obtained with wider （2.13 m × 2.13 m） spacing than with closer spacings. But tree growth was unaffected by other spacings. Growth data were also recorded from other .4. officinalis plantations raised by Forest Department （FD） on different islands in Patuakhali and Bhola districts of Bangladesh. At these sites, mean annual height incre- ment ranged from 0.33-0.62 m, mean annual diameter increment from 0.72-1,37 cm and wood volume from 1.55-5.73 m3·ha-1·a·-1. The growth performance of A. offindicated that the newly aecreted lands along the western shoreline may be suitable for raising Avicennia planta- tions for the enrichment of coastal vegetation.

关键词： growth Avicennia officinalis plantation spacing coastal belt

Securing 3D Point and Mesh Fog Data Using Novel Chaotic Cat Map

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Computers, Materials & Continua 2023年第3期74卷 6703-6717页

作者： K.Priyadarsini Arun Kumar Sivaraman abdul Quadir md Areej Malibari Department of Data Science and Business Systems School of ComputingCollege of Engineering and TechnologySRM Institute of Science and TechnologyKattankulathurChennai603203India School of Computer Science and Engineering Vellore Institute of TechnologyChennai600127India Department of Industrial and Systems Engineering College of EngineeringPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia

With the rapid evolution of Internet technology,fog computing has taken a major role in managing large amounts of *** major concerns in this domain are security and ***,attaining a reliable level of confidentiality in the fog computing environment is a pivotal *** different types of data stored in the fog,the 3D point and mesh fog data are increasingly popular in recent days,due to the growth of 3D modelling and 3D printing ***,in this research,we propose a novel scheme for preserving the privacy of 3D point and mesh fog *** Cat mapbased data encryption is a recently trending research area due to its unique properties like pseudo-randomness,deterministic nature,sensitivity to initial conditions,ergodicity,*** boost encryption efficiency significantly,in this work,we propose a novel Chaotic Cat *** sequence generated by this map is used to transform the coordinates of the fog *** improved range of the proposed map is depicted using bifurcation *** quality of the proposed Chaotic Cat map is also analyzed using metrics like Lyapunov exponent and approximate *** also demonstrate the performance of the proposed encryption framework using attacks like brute-force attack and statistical *** experimental results clearly depict that the proposed framework produces the best results compared to the previous works in the literature.

关键词： Chaotic cat map fog computing encryption 3D point fog 3D mesh

Predicting and Curing Depression Using Long Short Term Memory and Global Vector

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Computers, Materials & Continua 2023年第3期74卷 5837-5852页

作者： Ayan Kumar abdul Quadir md J.Christy Jackson Celestine Iwendi School of Computer Science and Engineering Vellore Institute of TechnologyChennai600127India School of Creative Technologies University of BoltonBoltonUK

In today’s world, there are many people suffering from mentalhealth problems such as depression and anxiety. If these conditions are notidentified and treated early, they can get worse quickly and have far-reachingnegative effects. Unfortunately, many people suffering from these conditions,especially depression and hypertension, are unaware of their existence until theconditions become chronic. Thus, this paper proposes a novel approach usingBi-directional Long Short-Term Memory (Bi-LSTM) algorithm and GlobalVector (GloVe) algorithm for the prediction and treatment of these *** and fitness bands can be equipped with these algorithms whichcan share data with a variety of IoT devices and smart systems to betterunderstand and analyze the user’s condition. We compared the accuracy andloss of the training dataset and the validation dataset of the two modelsnamely, Bi-LSTM without a global vector layer and with a global vector *** was observed that the model of Bi-LSTM without a global vector layer hadan accuracy of 83%,while Bi-LSTMwith a global vector layer had an accuracyof 86% with a precision of 86.4%, and an F1 score of 0.861. In addition toproviding basic therapies for the treatment of identified cases, our model alsohelps prevent the deterioration of associated conditions, making our methoda real-world solution.

关键词： Emotion dynamics depression heart rate internet of things global vector long short term memory machine learning sentiment analysis

Morphological and Genetical Variability among Rhizoctonia solani Isolates Causing Sheath Blight Disease of Rice

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Rice science 2016年第1期23卷 42-50页

作者： Zakiah Rahman MONI md Ansar ALI md Shahidul ALAM md Asif RAHMAN md Rejwan BHUIYAN md Salim MIAN Khandakar md IFTEKHARUDDAULA md.abdul LATIF Mohammad Ashik Iqbal KHAN Plant Breeding Division Bangladesh Rice Research Institute Director Research Bangladesh Rice Research Institute Department of Botany Rajshahi University Department of Genetics and Plant Breeding Bangabandhu Sheikh Mujibur Rahman Agricultural University Plant Pathology Division Bangladesh Rice Research Institute

Eighteen isolates of Rhizoctonia solani collected from infected rice plants in four different locations of Bangladesh were studied by using morphological characters and molecular markers. Anastomosis study with a reference isolate confirmed that all the isolates belonged to R. solani. Significant variation was observed in sclerotial size, shape and distribution. Un-weighted pair group method with arithmetic mean dendrogram constructed based on the Gower＇s general similarity coefficient showed that these isolates were grouped into four clusters at the 0.68 similarity coefficent according to morphological characters. Cluster I was a major cluster consisting of 13 isolates, while clusters Ⅱ to Ⅳ consisted of 1 or 2 isolates. Analyses by variable number of tandem repeat and amplified fragment length polymorphism markers showed that the isolates were grouped into five and three clusters at a similarity coefficient of 0.64 and 0.69, respectively. Although most of the variability was found between isolates from different regions as expected, significant variation was observed within the isolates collected from similar agro-ecological regions. Our results suggest the presence of different races of R. solani within the same local geographic regions.

关键词： rice Rhizoctonia solani fungal variability molecular marker morphological character

Salt-Induced Changes in Physio-Biochemical and Antioxidant Defense System in Mustard Genotypes

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Phyton-International Journal of Experimental Botany 2020年第3期89卷 541-559页

作者： md.Shakhawat Hossain md.Daud Hossain abdul Hannan Mirza Hasanuzzaman md.Motiar Rohman Central Laboratory Research WingBangladesh Agricultural Research InstituteGazipur 1701Bangladesh Seed Technology Division Bangladesh Agricultural Research InstituteGazipur 1701Bangladesh Department of Agronomy Sher-e-Bangla Agricultural UniversityDhaka 1207Bangladesh Molecular Breeding Lab Plant Breeding DivisionBangladesh Agricultural Research InstituteGazipur 1701Bangladesh

Salinity stress is a major factor limiting plant growth and productivity of many crops including *** present study investigated the identification of salt tolerant mustard genotypes and better understanding the mechanism of salinity *** stresses significantly reduced relative water content(RWC),chlorophyll(Chl)content,K^(+) and K^(+)/Na^(+) ratio,photosynthetic rate(P N),tran-spiration rate(Tr),stomatal conductance(gs),intercellular CO_(2) concentration(Ci)and increased the levels of proline(Pro)and lipid peroxidation(mdA)contents,Na+,superoxide(O_(2)^(•−))and hydrogen peroxide(H_(2)O_(2))in both tolerant and sensitive mustard *** tolerant genotypes maintained higher Pro and lower mdA content than the salt sensitive genotypes under stress *** activities of superoxide dismutase(SOD),catalase(CAT),peroxidase(POD),glutathione peroxidase(GPX),monodehydroascorbate reductase(mdHAR)and dehydroascorbate reductase(DHAR)were increased with increasing salinity in salt tolerant genotypes,BJ-1603,BARI Sarisha-11 and BARI Sarisha-16,but the activities were unchanged in salt sensitive genotype,BARI ***,the increment of ascorbate peroxidase(APX)activity was higher in salt sensitive genotype as compared to tolerant ***,the activ-ities of glutathione reductase(GR)and glutathione S-transferase(GST)were increased sharply at stress conditions in tolerant genotypes as compared to sensi-tive *** accumulation of Pro along with improved physiological and biochemical parameters as well as reduced oxidative damage by up-regulation of antioxidant defense system are the mechanisms of salt tolerance in selected mustard genotypes,BJ-1603 and BARI Sarisha-16.

关键词： Mustard saline sensitivity photosynthesis antioxidants ionic imbalance oxidative stress

Increasing grain weight and yield stability by increasing pre-heading non-structural carbohydrate reserves per spikelet in short-growth duration rice

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The Crop Journal 2023年第6期11卷 1912-1920页

作者： Xing Li Ruichun Zhang Ge Chen Jiaxin Xie Zhengwu Xiao Fangbo Cao Izhar Ali Anas Iqbal abdul wahab Min Huang Jiana Chen Rice and Product Ecophysiology Key Laboratory of Ministry of Education for Crop Physiology and Molecular BiologyHunan Agricultural UniversityChangsha 410128HunanChina Hengyang Academy of Agricultural Sciences Hengyang 421101HunanChina Yueyang Academy of Agricultural Sciences Yueyang 414022HunanChina College of Agriculture Guangxi UniversityNanning 530004GuangxiChina State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources College of AgricultureSouth China Agricultural UniversityGuangzhou 510642GuangdongChina Shanghai Center for Plant Stress Biology CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghai 200032China

Rice yield stability is a breeding goal,particularly for short-growth duration rice,but its underlying mechanisms remain *** an attempt to identify the relationship between yield stability and source–sink characteristics in short-growth duration rice,a field experiment was conducted at three sites(Yueyang,Liuyang,and Hengyang)in 2021 and *** study compared yield,yield components,source–sink characteristics,and their stability between two stable-yielding short-growth duration rice cultivars,Zhongzao 39(Z-39)and Lingliangyou 268(L-268),and two unstable-yielding short-growth duration rice cultivars,Zhongjiazao 17(Z-17)and Zhuliangyou 819(Z-819).The stability of agronomic parameters was represented by the coefficient of variation(CV).The respective CVs of yield in Z-17,Z-819,Z-39,and L-268 were 10.2%,10.1%,4.5%,and 5.7%in 2021 and 19.7%,15.0%,5.4%,and 6.5%in *** respective CVs of grain weight were 6.3%,5.7%,3.4%,and 4.5%in Z-17,Z-819,Z-39,and L-268 in 2021,and 8.1%,6.3%,1.5%,and 0.8%in *** mean source capacity per spikelet and pre-heading non-structural carbohydrate reserves per spikelet(NSC_(pre))were 7%–43%and7%–72%lower in Z-819 and Z-17than in L-268 and Z-39 in 2021 and *** mean quantum yield of photosystem II photochemistry of leaf,leaf area index,and specific leaf weight of L-268 and Z-39 were higher than those of Z-819 and Z-17 at the heading *** study suggests that high NSC_(pre),caused by great leaf traits before heading,increases source capacity per spikelet and its stability,thereby increasing the stability of grain weight and *** NSC_(pre)is critical for achieving grain weight and yield stability in short-growth duration rice.

关键词： Non-structural carbohydrate Short-growth duration rice Source-sink characteristics Yield stability

Investigation on LaF_3/porous silicon system for photonic application

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Chinese Optics Letters 2010年第3期8卷 306-308页

作者： Halima Khatun Sinthia Shabnam Mou abdul Al Mortuza Abu Bakar md.Ismail Department of Applied Physics and Electronic EngineeringRajshahi University School of Electrical and Electronic EngineeringIndependent University

We present the investigation on LaF3/porous silicon （PS） system that has properties of both the materials to be applied in photonics. Epilayers of LaF3 are grown on PS under different anodization conditions using electron-beam evaporation （EBE）. The characteristics of the LaF3/PS system are analyzed by X-ray diffraction （XRD）, scanning electron microscope （SEM）, energy dispersive X-ray spectroscopy （EDX）, and photoluminescence （PL）. XRD confirms the polycrystalline nature of the LaFz film. Nearly stoichiometric growth of LaF3 on PS is established by EDX. Such a thin LaF3 layer grown on PS leads to a good enhancement of PL yield of PS. But with the increasing thickness of LaF3 layer, PL intensity of PS is found to decrease along with a small blue-shift.

关键词： Energy dispersive spectroscopy Scanning electron microscopy X ray spectroscopy

Cairo＇s Slums： A Ticking Time Bomb

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Journal of Civil Engineering and Architecture 2014年第8期8卷 989-1008页

作者： abdul-wahab El-Kadi College of Engineering and Technology Arab Academy for Science and Technology and Maritime Transport Cairo 11311 Egypt

Despite being one of the symbols of civilization throughout human history, Greater Cairo has many slum areas, hosting a population of three million people living in deteriorating conditions and lacking the basic human necessities. These slums represent a fertile environment for diseases caused by pollution in all its forms and are subject to crimes, rape and theft. There is a huge difference in the state of conditions when comparing the formally planned areas to the informally planned ones. People living in the formally planned settlements, like Nasr City, and in informal ones, like Ezbet El-Haggana, are similar to the kings and queens and slaves of legends. This paper tries to find solutions to the problem of slums and random areas.

关键词： Cairos' slums Cairo's informal settlements reallocation of Cairos' slums development of Egypt's corridor

Assessing household perception,autonomous adaptation and economic value of adaptation benefits:Evidence from West Coast of Peninsular Malaysia

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Advances in Climate Change Research 2022年第5期13卷 738-758页

作者： Sofia EHSAN Rawshan Ara BEGUM Khairul Nizam abdul MAULUD md Shahin MIA Earth Observation Centre Institute of Climate ChangeUniversiti Kebangsaan MalaysiaUKM Bangi 43600Malaysia Centre for Corporate Sustainability and Environmental Finance Macquarie UniversityNew South Wales 2109Australia Department of Civil Engineering Faculty of Engineering&Built EnvironmentUniversiti Kebangsaan MalaysiaUKM Bangi 43600Malaysia School of Economics Finance and BankingUniversiti Utara MalaysiaSintok 06010Malaysia

Climate change is causing sea-level rise,intense and frequent storm surge flooding,and significant shoreline erosion in Malaysian coastal ***,coastal properties,infrastructure,and livelihoods are *** has become apparent that adaptation at the household and community level is necessary to offset the adverse impacts of coastal *** community needs to be made aware of the risks,acquire knowledge about adaptation options,and be empowered to take their own *** perception and preference are therefore crucial for design and implementation of effective planning for climate ***,this study assesses households'perception,adaptation measures and empirically estimates willingness to pay and preference for planned adaptation measures to guide policy instruments through public *** Malaysia,ten highly vulnerable coastal areas in the Selangor coast were surveyed at the household level(n=1016)through face-to-face interviews using a structured *** households’perception and adaptation methods,most of the households in the highly exposed areas perceived less risk of inundation and sea-level rise threat and adopted less proactive adaptation and limited risk reduction behaviours during the extreme *** study found that 66.9%of households were willing to pay for planned adaptation measures despite the limited income capabilities and in favour of moderate adaptation(23.9%).The binomial and ordinal regression results indicated that the probability of willingness to pay for planned adaptation measures significantly increases with age,prior exposure to coastal hazards,awareness,risk perception,community participation,being affected by property damage and loss of income due to extreme *** increased monthly household income and access to telecommunication services,households will probably pay higher for better adaptation measures.A significant amount of perceived yearly adaptation benefits in the coasta

关键词： Risk perception Climate awareness Public engagement Factors affecting adaptation Willingness to pay