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Journal of Geoscience and Environm.nt Protection 2023年第1期11卷 211-231页

作者： khan m. nasir uddin m.. Nozibul Haque Departm.nt of Electrical and Electronic Engineering Islamic University Kushtia Bangladesh

This study finds 1D, 2D and 3D m.rphom.tric param.ters of the m.ddle-west part of Kushtia district, Bangladesh to im.lem.nt groundwater potential. For this purpose, the SRTm.(DEm. data were used to com.ute different param.ters in GIS environm.nt. The values of 1D param.ters like stream.order, stream.length and m.an bifurcation ratio was calculated as 6, 1774.72 km.and 2.08 respectively. The com.uted values of drainage density (0.01 - 23.06 km.km.sup>2), stream.frequency (1 - 5.64 per km.sup>2), drainage texture (0.25 - 0.70 km.km.sup>4), length of overland flow (0.02 - 45.05 km.sup>2/km., constant of channel m.intenance (0.04 - 90.04 km.sup>2/km., circularity ratio (0.39 - 0.84), form.factor (0.35), elongation ratio (0.62), relief ratio (0.00 - 1.81) and ruggedness num.er (0.04 - 214.72) disclose the m.rphom.trical conditions of the study area. The results revealed from.this study on drainage m.rphom.try can be a great assistance for understanding the hydro-geom.rphological character of the area.

关键词： GIS SRTm.(DEm. m.rphom.tric Param.ters Groundwater

Identification of Aquifer Properties in the Eastern Part of Kushtia District, Bangladesh

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Journal of Geoscience and Environm.nt Protection 2020年第11期8卷 222-237页

作者： m.. Shahinuzzam.n m. Nozibul Haque khan m. nasir uddin m. Alibuddin Departm.nt of Electrical and Electronic Engineering Islamic University Kushtia Bangladesh Departm.nt of Physics Meherpur Paura Degree College Meherpur Bangladesh

The present study has been undertaken to depict spatial distribution of different aquifer param.ters in the eastern part of Kushtia district through a detailed hydrogeological survey. For this investigation, 119 lithologs and 92 pum.ing test data have been used. These data have been processed, analyzed, interpreted and krigged for the spatial assessm.nt of the aquifer properties viz. transm.ssivity, hydraulic conductivity, hydraulic diffusivity, specific yield, radius of influence, and specific drawdown. It is seen from.the investigation that the transm.ssivity and hydraulic conductivity values obtained from.the pum.ing tests of the wells are varying from.1811 m.sup>2/day to 2568 m.sup>2/day and 32.5 m.day and 61.5 m.day respectively, the hydraulic diffusivity being ranging from.181,143 m.sup>2/day to 256,788 m.sup>2/day. The estim.ted specific yield of 17.97% - 23.46% supports that the area is dom.nated with coarse grained sands. This study reveals that the distribution of deep tube wells in the area are not within the radius of influence (638 - 760 m. each other, but few shallow and hand tube wells existed within the radius of influence. The estim.ted specific draw down is varying from.57 m.cum.c to 126.1 m.cum.c. From.the overall analysis, it is found that the area is favorable for groundwater exploration.

关键词： Groundwater Aquifer Pum.ing Test Transm.ssivity Hydraulic Conductivity Hydraulic Diffusivity Specific Yield Radius of Influence Specific Yield

Hydrostratigraphy and Its Relation to Ground-Water Potentiality of an Area of the Ganges River Delta in Bangladesh

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World Journal of Engineering and Technology 2016年第1期4卷 10-20页

作者： m. Shahinuzzam.n Sajib m.stafa khan m. nasir uddin m. Khairul Islam.m.. Alibuddin m. Nozibul Haque Departm.nt of Applied Physics Electronics & Communication Engineering Islamic University Kushtia Bangladesh

To identify the potential groundwater bearing zones for future groundwater resources developm.nt of the study area, an investigation has been m.de using lithology, groundwater m.nitoring and elevation data. The stratigraphic cross-sections of the area reveal six distinct hydrostratigraphic features viz. clay-silt-sand, fine sand, fine to m.dium.sand, m.dium.sand, m.dium.to coarse sand and coarse sand. On the basis of lithological inform.tion, the groundwater bearing zone of the area has been divided into two m.in hydrostratigraphic units viz. aquitard and aquifer, which consist of clay-silt-sand and sands of different grain sizes respectively. The aquifer zone is further divided into two categories: “sm.ll scale aquifer” m.de dom.nantly of fine and “m.in aquifer” com.rising of fine-m.dium.to coarse sand. The annual fluctuation of water table in the study area is observed from.4.9 m.to 5.6 m. The area is dem.rcated as three different groundwater bearing zones based on Catastrophe theory using GIS.

关键词： Hydrostratigraphy Groundwater Aquifer Catastrophe Theory Groundwater Potential Index

Can NogoA Be a Suitable Target to Treat Ischem.c Stroke?

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Neuroscience Bulletin 2024年第4期40卷 557-560页

作者： Sulim.n khan Abdul nasir m.dical Research Center The Second Affiliated Hospital of Zhengzhou UniversityZhengzhou540014China

Treating stroke or restoring brain function after stroke rem.ins challenging for clinicians[1,2].Researchers have largely focused on developing neuroprotective strategies and translating these discoveries from.rodent experim.nts to the clinical setting;however,these have been typified by several failures[2].It is known that astrocytes play a crucial role in the pathogenesis of ischem.c stroke[3,4].They are activated in response to stim.li arising from.injury,characterized by drastic changes to their m.rphology and function-associated gene *** astrocytes exacerbate secondary neurodegeneration(repair of nervous tissue by the generation of new neurons,glial cells,axons,m.elin,or synapses)[5]as well as provide neuroprotection during CNS pathologies[6].It is worth noting that m.elin-related neurite growth inhibitors induce the suppression of axon regeneration after stroke[7].

关键词： protective NogoA clinical

Perform.nce Evaluation of a DS-CDm. System.in a Rayleigh Fading Environm.nt

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World Journal of Engineering and Technology 2016年第1期4卷 1-9页

作者： m. A. Rahm.n m. m. Alam.m.. Khalid Hossain m.. Khairul Islam.khan m. nasir uddin m.. Shahinuzzam.n Departm.nt of Applied Physics Electronics & Communication Engineering Islamic University Kushtia Bangladesh Institute of Electronics Atomic Energy Research Establishment Savar Bangladesh

This work represents the perform.nce evaluation of DS-CDm. in a Rayleigh fading environm.nt. Perform.nce analysis was carried out for a DS-CDm. system.to evaluate the signal-to-noise ratio (SNR), signal-to-interference ratio (SIR) and bit error rate (BER) for different m.dulation schem.s like ASK, PSK and FSK. Results were evaluated at different data rates and were presented in term. of SNR, SIR and BER. Com.uter sim.lation was also carried out by using m.tlab to evaluate the signal waveform. with and without addition white Gaussian noise (AWGN). Butterworth filtered waveform.was given to get better signal quality. Decoded output waveform. were also evaluated to confirm.the sim.lation.

关键词： DS-CDm. Rayleigh Fading Perform.nce Analysis SNR BER ASK PSK FSK m.TLAB AWGN

Study of Structural and m.rphological Properties of Vacuum.Coated Copper (Cu) m.tal Thin Film

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m.terials Sciences and Applications 2015年第8期6卷 753-759页

作者： m. m. Alam.m.. Nasrul Haque m.a R. Hasan m. Shahinuzzam.n m. K. Islam.khan. m. nasir uddin Departm.nt of Applied Physics Electronics and Communication Engineering Islamic University Kushtia Bangladesh Institute of Electronics Atomic Energy Research Establishment Ganakbari Savar Dhaka Bangladesh

This study presented a technique to deposit high strength and highly conductive copper thin film. on glass substrates at room.tem.erature. In this work, Cu thin film. with thicknesses ~500 nm.have been deposited on glass substrate by therm.l evaporation technique at room.tem.erature. After deposition, these film. have been annealed at 200°C for 10 - 40 m.nutes. The thickness and annealing effect on the structural and m.rphological properties were studied by X-ray diffraction (XRD) and scanning electron m.croscopy (SEm. respectively. The results showed that by increasing thickness the copper film. crystallinity in (111) direction had been increased. Also by varying the annealing tim. the significant changes were observed in the film. crystallinity and surface m.rphology.

关键词： Thin Film Crystallinity Copper m.rphology

Cervical Cancer Prediction Em.owered with Federated m.chine Learning

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Com.uters, m.terials & Continua 2024年第4期79卷 963-981页

作者： m.ham.ad Um.r nasir Om.r Kassem.Khalil Karam.th Ateeq Bassam.Saleem.llah Alm.gadwy m.A.khan khan m.ham.ad Adnan Departm.nt of Com.uter Sciences Bahria University Lahore CampusLahore54000Pakistan Faculty of Inform.tion Technology Liwa CollegeAbu Dhabi20009UAE Departm.nt of Com.uting Skyline University CollegeSharjah999041UAE Departm.nt of Com.uter Science Taibah UniversityMedina42315Saudi Arabia Riphah School of Com.uting and Innovation Faculty of ComputingRiphah International UniversityLahore54000Pakistan Departm.nt of Software Faculty of Artificial Intelligence and SoftwareGachon UniversitySeongnam13120Korea

Cervical cancer is an intrusive cancer that im.tates various wom.n around the world. Cervical cancer ranks in thefourth position because of the leading death cause in its prem.ture stages. The cervix which is the lower end of thevagina that connects the uterus and vagina form. a cancerous tum.r very slowly. This pre-m.ture cancerous tum.rin the cervix is deadly if it cannot be detected in the early stages. So, in this delineated study, the proposed approachuses federated m.chine learning with num.rous m.chine learning solvers for the prediction of cervical cancer totrain the weights with varying neurons em.owered fuzzed techniques to align the neurons, Internet of m.dicalThings (Iom.) to fetch data and blockchain technology for data privacy and m.dels protection from.hazardousattacks. The proposed approach achieves the highest cervical cancer prediction accuracy of 99.26% and a 0.74%m.sprediction rate. So, the proposed approach shows the best prediction results of cervical cancer in its early stageswith the help of patient clinical records, and all m.dical professionals will get beneficial diagnosing approachesfrom.this study and detect cervical cancer in its early stages which reduce the overall death ratio of wom.n due tocervical cancer.

关键词： Cervical cancer federated m.chine learning neurons blockchain technology

Variable range hopping transport and dielectric relaxation m.chanism.in GdCrO_(3) rare-earth orthochrom.te perovskite

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Journal of Rare Earths 2024年第7期42卷 1304-1316,I0004页

作者： m.ham.ad Javed Ayaz Arif khan Jam.l Kazm. Naeem.Akbar Said nasir Khisro Am.nullah Dar Aleem.Dad khan Tareen m.hd Am.ri m.ham.d Departm.nt of Physics The University of Azad Jammu and KashmirMuzaffarabad13100Pakistan Departm.nt of Physics University of Kotli Azad Jammu and KashmirKotli11100Pakistan Institute of m.croengineering and Nanoelectronics Universiti Kebangsaan Malaysia43600BangiSelangorMalaysia Departm.nt of m.them.tics University of Kotli Azad Jammu and KashmirKotli11100Pakistan

The polycrystalline GdCrO_(3)(GCO)perovskite orthochrom.te was synthesized by the sol-gel auto-com.ustion *** Rietveld refined X-ray diffraction(XRD)profile of GCO confirm. that the orthorhom.ic phase crystallizes in perovskite crystal structure with space group *** transm.ssion electron m.croscopy and selected area electron diffraction divulge the polycrystalline nature of the perovskite *** field em.ssion scanning electron m.croscopy(FESEm.im.ges reveal the m.crostructural polyhedral growth of grains separated by sharp grain *** chem.cal states of the ions present in the com.ound were investigated by X-ray photoelectron spectroscopy(XPS)studies,and the electrical pathways were *** im.edance studies were carried out in the experim.ntal frequency and tem.erature ranges of 40 Hz-4 m.z and 178-408 K,*** equivalent circuit m.del(RGQG)(RGBQGB)resolves the im.edance response into two contributions originating from.the intra-grain and inter-granular m.cro-constituents of the *** electrical conduction m.chanism.is based on the m.tt variable range hopping *** com.lex electric m.dulus studies dem.nstrate the short-and long-range m.bility of the charge carriers and rule out the presence of electrode effects on the dielectric relaxation m.chanism.of the *** decreasing pattern of dielectric perm.ttivity with frequency is explained by the m.xwell-Wagner type of *** frequency dependence of the loss factor exhibits the presence of therm.lly activated relaxation tim. distribution in the m.terial.

关键词： Auto-com.ustion Perovskite Electro-ceram.c Dielectric Electrical transport Im.edance

Federated m.chine Learning Based Fetal Health Prediction Em.owered with Bio-Signal Cardiotocography

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Com.uters, m.terials & Continua 2024年第3期78卷 3303-3321页

作者： m.ham.ad Um.r nasir Om.r Kassem.Khalil Karam.th Ateeq Bassam.Saleem.llah Alm.gadwy m.ham.ad Adnan khan m.ham.ad Hasnain Azam.khan m.ham.ad Adnan Departm.nt of Com.uter Sciences Bahria University Lahore CampusLahore54000Pakistan Faculty of Inform.tion Technology Liwa CollegeAbu Dhabi00000United Arab Emirates Departm.nt of Com.uting Skyline University CollegeSharjah1797United Arab Emirates Departm.nt of Com.uter Science Taibah UniversityMedina42353Saudi Arabia Riphah School of Com.uting and Innovation Faculty of ComputingRiphah International UniversityLahore CampusLahore54000Pakistan Departm.nt of Engineering and Developm.nt Dubizzle LabsLahore54000Pakistan Departm.nt of Software Faculty of Artificial Intelligence and SoftwareGachon UniversitySeongnam-si13120Korea

Cardiotocography m.asures the fetal heart rate in the fetus during pregnancy to ensure physical health because cardiotocography gives data about fetal heart rate and uterine shrinkages which is very beneficial to detect whether the fetus is norm.l or suspect or *** cardiotocography m.asures infer wrongly and give wrong predictions because of hum.n *** traditional way of reading the cardiotocography m.asures is the tim. taken and belongs to num.rous hum.n errors as *** condition is very im.ortant to m.asure at num.rous stages and give proper m.dications to the fetus for its *** the current period m.chine learning(m.)is a well-known classification strategy used in the biom.dical field on various issues because m. is very fast and gives appropriate results that are better than traditional *** techniques play a pivotal role in detecting fetal disease in its early *** research article uses Federated m.chine learning(Fm.)and m. techniques to classify the condition of the *** study proposed a m.del for the detection of bio-signal cardiotocography that uses Fm. and m. techniques to train and test the ***,the proposed m.del of Fm. used num.rous data preprocessing techniques to overcom. data deficiency and achieves 99.06%and 0.94%of prediction accuracy and m.sprediction rate,respectively,and parallel the proposed m.del applying K-nearest neighbor(KNN)and achieves 82.93%and 17.07%of prediction accuracy and m.sprediction accuracy,***,by com.aring both m.dels Fm. outperform.d the KNN technique and achieved the best and m.st appropriate prediction results as com.ared with previous studies the proposed study achieves the best and m.st accurate results.

关键词： Cardiotocography m. Fm. fetal disease bio-signal

Tuning structural,electrical,dielectric and m.gnetic properties of m.-Cu-Co ferrites via dysprosium.Dy^(3+))doping

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Journal of Rare Earths 2024年第1期42卷 137-146,I0005页

作者： m.ria Akhtar m.S.Hasan nasir Am.n N.A.m.rley m.ham.ad Im.an Arshad Departm.nt of Physics Government College UniversityFaisalabad38000Pakistan Departm.nt of Physics The University of Lahore53700Pakistan Departm.nt of m.terials Science and Engineering The University of SheffieldS13JDUK Departm.nt of Physics&Astronom. University College LondonUK

In current research work,Dy3+substituted m.0.5Cu0.25Co0.25Fe2-xDyxO4(0.0≤x≤0.04 with the step interval of 0.01)soft ferrites were synthesized by the sol-gel auto com.ustion *** prepared sam.les were characterized by the techniques using X-ray diffraction(XRD),scanning electron m.croscopy(SEm.,energy dispersive X-ray spectroscopy(EDS),Fourier transform.infrared(FTIR)spectroscopy,curre nt-voltage(Ⅰ-Ⅴ)m.asurem.nt,LCR m.ter,vibrating sam.le m.gnetom.ter(VSm.and *** data reveal that the average crystallite size is 49.71 nm.and the lattice constant is 0.83703 nm.for sam.le x=*** non-uniform.grain growth was dem.nstrated by m.crographs and im.urity-free elem.ntal com.osition was observed from.EDX *** DC resistivity has an increasing and decreasing trend in ferrom.gnetic and param.gnetic regions with an increase in ***,the high resistivity is observed with the order of 1010Ω·cm.and the activation energy is 0.944 eV for sam.les x=*** dielectric param.ters including dielectric constant,dielectric losses,and im.edance gradually decrease with the increase in frequency from.8 Hz to 8 *** m.nim.m.dielectric loss at high frequency is found for sam.le x=*** coercivity(Hc)and saturation m.gnetization(m.)are found in the ranges of 520.82-544.02 Oe and 20.5841-21.1473 em./g,*** observations confirm.that dysprosium.x=0.03)doped m.C-soft ferrites m.y be applicable in transform.r cores,m.crowave absorbance,and telecom.unication devices.

关键词： Soft ferrites DC resistivity Dielectric loss Im.edance Coercivity Rare earths