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Clinical,biochemical and imaging characteristics of adrenal histoplasmosis in immunocompetent patients in a non-endemic area:A case series

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Asian Pacific Journal of Tropical Medicine 2021年第10期14卷 471-477页

作者： Sharmin Jahan Tahseen Mahmood Md Fariduddin Ibrahim Faisal Md Shahed Morshed Anil Yadav Anil Kumar Shah Chomon Abdullah emran-ur-rashid chowdhury Ferdousi Begum MA Hasanat Department of Endocrinology Bangabandhu Sheikh Mujib Medical UniversityDhakaBangladesh Department of Endocrinology Combined Military HospitalDhaka CantonmentDhakaBangladesh Division of Endocrinology Department of Internal MedicineIndira Gandhi Memorial HospitalKanbaa Aisa Rani HigunMale'-20402Republic of Maldives Department of Emergency Kurmitola General HospitalDhakaBangladesh Division of Endocrinology Department of Internal Medicine Birat Medical College Teaching HospitalBiratnagarNepal Division of Endocrinology Department of Internal MedicineChitwan Medical CollegeChitwan 44300Nepal Department of Pathology Bangabandhu Sheikh Mujib Medical UniversityDhakaBangladesh

Objective:To document the clinical,biochemical and imaging phenotypes of immunocompetent patients with adrenal ***:The clinical,biochemical and radiologic data of 18 immunocompetent patients[age:45.00(39.25,56.25)years,median(IQR),m/f(16/2)]with adrenal histoplasmosis presenting in the Department of Endocrinology,BSMMU between 2014 and 2020 were retrospectively ***:All patients were seronegative for HIV infection,and 27.8%(5/18)had well controlled diabetes *** median duration of the symptoms was 6.00(IQR:4.00,11.25)*** had significant weight loss,anorexia and *** was present in 61.1%(11/18)patients and night sweat was present in 27.8%(5/18)*** and hyperpigmentation were present in 55.6%(10/18)and 66.7%(12/18)cases,*** of 18 patients presented with adrenal *** occurred in 55.6%(10/18)cases,but none had *** of 18 patients had adrenal insufficiency whereas 83.3%(15/18)had high adrenocorticotropic *** scan revealed bilateral adrenal enlargement in all cases with oval shape and regular *** were hypodense having radiodensity 21-90 hounsfield unit,and 11.1%(2/18)were heterogeneous in contrast *** had noticeable calcification whereas 1.1%(2/18)cases had central necrosis with peripheral rim *** was present in 6 cases,splenomegaly in 3 cases and 5 patients had abdominal *** were confirmed by positive fine needle aspiration cytology of adrenal ***:Adrenal histoplasmosis should be considered in the list of differentials of bilateral adrenomegaly in immunocompetent individuals even living in non-endemic areas.

关键词： Histoplasmosis Immunocompetent Nonendemic Adrenal CT

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Computationally efficient locality-aware interconnection topology for multi-processor system-on-chip(MP-SoC)

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Chinese Science Bulletin 2010年第29期55卷 3363-3371页

作者： Haroon-ur-rashid Khan School of Computer Sicence and Technology Beijing Institute of Technology

This paper evaluates the Triplet Based Architecture,TriBA-a new idea in chip multiprocessor architectures and a class of Direct Interconnection Network(DIN).TriBA consists of a 2D grid of small,programmable processing units,each physically connected to its three neighbors so that advantageous features of group locality can be fully and efficiently *** communication model can be well characterized by locality properties and,any topology has its intrinsic,structural,locality *** propose a new criterion in performance evaluation that is based on the concept of locality in an interconnection network,the "lower layer complete connect".Our proposed criterion depicts how completely a processing node is connected to all its *** is compared with 2D Mesh and Binary Tree as static interconnection *** comparison/evaluation is enumerated from three orthogonal view points,viz.,computational speed,physical layout and *** analysis concludes that TriBA is computationally efficient interconnection strategy that exploits group locality in processing nodes.

关键词：互连网络系统级芯片拓扑结构多处理器计算效率局部性 SoC MP

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Oxidative desulfurization of dibenzothiophene over Fe promoted Co–Mo/Al_2O_3 and Ni–Mo/Al_2O_3 catalysts using hydrogen peroxide and formic acid as oxidants

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Chinese Journal of Chemical Engineering 2018年第3期26卷 593-600页

作者： Yaseen Muhammad Ayesha Shoukat Ata ur Rahman Haroon ur rashid Waqas Ahmad Institute of Chemical Sciences University ofPeshawar Khyber Pakhtunkhwa Pakistan School of Chemistry and Chemical Engineering Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology Guangxi University Guangxi 530004 China Department of Chemistry 5arhad University of Science and Information Technology Peshawar Pakistan

This work reports the enhancing effect of a highly cost effective and efficient metal, Fe, incorporation to Co or Ni based Mo/Al2O3 catalysts in the oxidative desulfurization （ODS） of dibenzothiophene （DBT） using H2O2 and formic acid as oxidants. The influence of operating parameters i.e. reaction time, catalyst dose, reaction temperature and oxidant amount on oxidation process was investigated. Results revealed that 99% DBT conversion was achieved at 60℃ and 150 min reaction time over Fe-Ni-Mo/Al2O3. Fe tremendously enhanced the ODS activity of Co or Ni based Mo/Al2O3 catalysts following the activity order：Fe-Ni-Mo/Al2O3 〉 Fe-Co-Mo/Al2O3 〉 Ni-Mo/Al2O3 〉 Co-Mo/Al2O3, while H2O2 exhibited higher oxidation activity than formic acid over all catalyst systems. Insight about the surface morphology and textural properties of fresh and spent catalysts were achieved using scanning electron microscopy （SEM）, X-ray diffraction （XRD）, energy dispersive X-ray （EDX） analysis, Atomic Absorption Spectroscopy （AAS） and BET surface area analysis, which helped in the interpretation of experimental data. The present study can be deemed as an effective approach on industrial level for ODS of fuel oils crediting to its high efficiency, low process/catalyst cost, safety and mild operating condition.

关键词： Oxidative desulfurization Fuel oil Dibenzothiophene Fe promoted (Co/Ni)-Mo/Al2O3 catalyst XRD

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Locality Aware Optimal Task Scheduling Algorithm for TriBA —— A Novel Scalable Architecture

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Journal of Beijing Institute of Technology 2008年第3期17卷 294-299页

作者： KHAN Haroon-ur-rashid 石峰 School of Computer Science and Engineering Beijing Institute of Technology Beijing 100081 China

An optimal algorithmic approach to task scheduling for, triplet based architecture（TriBA）, is proposed in this paper. TriBA is considered to be a high performance, distributed parallel computing architecture. TriBA consists of a 2D grid of small, programmable processing units, each physically connected to its three neighbors. In parallel or distributed environment an efficient assignment of tasks to the processing elements is imperative to achieve fast job turnaround time. Moreover, the sojourn time experienced by each individual job should be minimized. The arriving jobs are comprised of parallel applications, each consisting of multiple-independent tasks that must be instantaneously assigned to processor queues, as they arrive. The processors independently and concurrently service these tasks. The key scheduling issues is, when some queue backlogs are small, an incoming job should first spread its tasks to those lightly loaded queues in order to take advantage of the parallel processing gain. Our algorithmic approach achieves optimality in task scheduling by assigning consecutive tasks to a triplet of processors exploiting locality in tasks. The experimental results show that tasks allocation to triplets of processing elements is efficient and optimal. Comparison to well accepted interconnection strategy, 2D mesh, is shown to prove the effectiveness of our algorithmic approach for TriBA. Finally we conclude that TriBA can be an efficient interconnection strategy for computations intensive applications, if tasks assignment is carried out optimally using algorithmic approach.

关键词： multiprocessor architecture task scheduling mapping parallel processing speedup

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DFT studies of thermoelectric properties of R-Au intermetallics at 300 K

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Journal of Rare Earths 2018年第2期36卷 197-202页

作者： Sardar Ahmad rashid Ahmad Muhammad Bilal Najeeb ur Rehman Center for Computational Materials Science University of Malakand Department of Chemistry University of Malakand Department of Physics University of Malakand

Thermoelectric and electronic properties of cubic bi-intermetallics R-Au（R = Tb, Ho. Er. Tm and Yb）compounds were explored. Electronic properties i.e. density of states and band structure were computed using first principles calculations which proved the metallic nature of these compounds. Post-DFT（BoltzTraP） calculations were carried out to explore their thermoelectric properties like electrical conductivities. Seebeck coefficient, electronic thermal conductivities and figure of merit. The highest Seebeck coefficient and figure of merit were found for YbAu among these compounds which are 105 μV/K and 0.285 respectively. All the calculations were carried out at 300 K. Large values of figure of merit obtained for these compounds at room temperature indicate that these materials can be used for thermoelectric devices however need experimental verification.

关键词： DFT Seebeck coefficient Figure of merit Thermal conductivity Electrical conductivity R-Au

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Hydrophobic modification of SAPO-34 membranes for improvement of stability under wet condition

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Chinese Journal of Chemical Engineering 2019年第10期27卷 2397-2406页

作者： rashid ur Rehman Qingnan Song Li Peng Yang Chen Xuehong Gu State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringJiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech UniversityNanjing 210009China

SAPO-34 zeolite membranes show high efficiency for CO2/CH4 separation but suffer from the reduction of separation performance when exposed to humid *** this work,n-dodecyltrimethoxysilane(DTMS)was used to modify the hollow fibers supported SAPO-34 membranes to increase the external surface hydrophobicity and thus sustain their performance under moisture *** modified membranes were fully *** separation performance was extensively investigated in both dry and wet gaseous systems and compared with the un-modified *** un-modified SAPO-34 membrane exhibited a high separation selectivity of 160 and CO2 permeance of 1.18×10-6 mol·m-2·s-1·Pa-1 for separation of dry CO2/CH4 at 298 ***,its separation selectivity declined to 0.9 and the CO2 permeance was only about 1.7×10-8 mol·m-2·s-1·Pa-1 for wet CO2/CH4 at same *** temperature(e.g.353 K)could reduce the effect of moisture to improve SAPO-34 separation selectivity,but further increasing temperature(e.g.373 K)led to decrease in CO2/CH4 separation selectivity.A significant decrease of selectivity was observed at higher pressure *** modified SAPO-34 membrane showed decreased CO2 permeance but increased separation selectivity for dry CO2/CH4 gas mixture,and super performance for wet CO2/CH4 gas mixture due to the improved hydrophobicity of membrane surface.A separation selectivity of 65 and CO2 permeance of 4.73×10-8 mol·m-2·s-1·Pa-1 for wet CO2/CH4 mixture can be observed at 353 K with a pressure drop of 0.4 ***,the modified membrane exhibited stable separation performance during the 120-hour test for wet CO2/CH4 mixture at 353 *** hydrophobic modification paves a way for SAPO-34 membranes in real applications.

关键词： SAPO-34 membrane CO2/CH4 separation Hydrophobic modification Stability Moisture environment

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Techno-economic assessment of energy generation through municipal solid waste:a case study for small/medium size districts in Pakistan

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Waste Disposal and Sustainable Energy 2020年第4期2卷 337-350页

作者： Ubaid ur Rehman Zia Tanzeel ur rashid Muzaffar Ali Waqas Nazir Awan Sustainable Development Policy Institute IslamabadPakistan Mechanical Engineering Department University of Engineering and TechnologyTaxilaPakistan

There is an increase in annual waste generation due to urbanization,industrialization,and population *** waste management crisis in developing countries and its complexity from region to region has inspired extensive research work in this *** management not only results in environmental hazards,but it also causes significant socio-economic *** to the absence of comprehensive studies on waste to energy(WTE)assessment,this study assesses and reports the merits of alternative technologies for converting WTE in small and medium-size *** analysis for waste collection data in this study uses a pilot study approach to provide useful insights and waste classification.A cantonment district of Pakistan(Wah Cantt)has been used as a case study for performing a technological and economic assessment of energy generation through the use of thermal and biological treatment processes.A mathematical modeling approach has been adopted for generating an economic value of each technology through which this waste can be ***,the levelized cost of energy(LCOE)based assessment has been performed to provide a methodological framework for selecting the most feasible WTE technology in a small or medium-size *** on the model results,anaerobic digestion appears to be the most sustainable technology due to the organic nature of waste in Wah Cantt,land legislation,and availability of area to install a waste *** all the waste collected,the district can generate approximately 14.4 MW of energy through thermal treatment,19,110 m^(3) of daily biogas through anaerobic digestion,and 5 million tons of fertilizer through ***,if a proper supply chain is established for converting a portion of Pakistan’s annual waste generation,a significant amount of waste energy potential can be restored.

关键词： Municipal solid waste Waste to energy Levelized cost of energy Technological assessment Economic assessment

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Effects of hooked-collar on the local scour around a lenticular bridge pier

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International Journal of Sediment Research 2023年第1期38卷 1-11页

作者： rashid Farooq Amir Hossein Azimi Muhammad Atiq ur Rehman Tariq Afzal Ahmed Department of Civil Engineering International Islamic University Department of Civil Engineering Lakehead University College of Engineering and Science Victoria University Department of Civil Engineering University of Engineering and Technology James Watt School of Engineering University of Glasgow

This paper presents the results of comprehensive laboratory experiments to investigate the effects of hooked-collar on the scour development around a vertical pier with a lenticular cross section. The flow around the pier was uniform, steady, and under the clear-water condition. The axial scour profiles for cases without and with a lenticular hooked-collar were measured and the effects of hooked-collar dimensions and elevation from the bed were examined. To compute the efficiency of hooked-collar for scour prevention, the results of local scour for a bridge pier without a collar and a bridge pier with a plain collar, without a hooked wall, were used as benchmark data sets. A wide range of hooked-collar geometries such as the ratio of collar width to the pier width, Wc/Wp, ranging from 1.5 to 3.5, the ratio of hooked-collar wall height to the pier width, Hc/Wp, ranging from 0.15 to 0.6, and the ratio of collar elevation to the pier width, Ec/Wp, of-0.5, 0, and 0.5 were tested. The experimental results indicated that the equilibrium scour depth decreased with the ratio of hooked-collar to the pier width when Wcis twice the pier width, Wp. For Wc/Wp> 2, the scour depth was similar to the tests with an infinitely large pier width. In addition, the scour depth consistently reduced as the hooked-collar wall height, Hc, to the pier width, Wp, approached 0.3. The highest scour reduction efficiency was achieved when the hooked-collar being placed on the bed surface. Empirical models were developed for prediction of maximum scour depth near the lenticular bridge pier with a modified collar. The results showed that the volume of scour hole around a lenticular pier increased non-linearly with the maximum scour depth and it was independent of the hooked-collar geometry.

关键词： Local scour Erosion Collar Hooked-collar Lenticular pier Scour countermeasure Steady flow

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Influence of waning immunity on vaccination decision-making:A multi-strain epidemic model with an evolutionary approach analyzing cost and efficacy

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Infectious Disease Modelling 2024年第3期9卷 657-672页

作者： Md.Mamun-ur-rashid Khan Jun Tanimoto Interdisciplinary Graduate School of Engineering Sciences Kyushu UniversityKasuga-koenKasuga-shiFukuoka816-8580Japan Faculty of Engineering Sciences Kyushu UniversityKasuga-koenKasuga-shiFukuoka816-8580Japan Department of Mathematics University of DhakaDhaka1000Bangladesh

In this research,we introduce a comprehensive epidemiological model that accounts for multiple strains of an infectious disease and two distinct vaccination *** stands out as the most effective means to prevent and manage infectious ***,when there are various vaccines available,each with its costs and effectiveness,the decision-making process for individuals becomes ***,the factor of waning immunity following vaccination also plays a significant role in influencing these *** understand how individuals make decisions in the context of multiple strains and waning immunity,we employ a behavioral model,allowing an epidemiological model to be coupled with the dynamics of a decision-making *** base their choice of vaccination on factors such as the total number of infected individuals and the cost-effectiveness of the *** findings indicate that as waning immunity increases,people tend to prioritize vaccines with higher costs and greater ***,when more contagious strains are present,the equilibrium in vaccine adoption is reached more ***,we delve into the social dilemma inherent in our model by quantifying the social efficiency deficit(SED)under various parameter combinations.

关键词： Multistrain epidemic model Vaccination Behavior dynamics Waning immunity Social dilemma

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Real-Time Multiple Guava Leaf Disease Detection from a Single Leaf Using Hybrid Deep Learning Technique

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Computers, Materials & Continua 2023年第1期74卷 1235-1257页

作者： Javed rashid Imran Khan Ghulam Ali Shafiq ur Rehman Fahad Alturise Tamim Alkhalifah Department of CS&SE Islamic International UniversityIslamabad44000Pakistan Department of IT Services University of OkaraOkara56310Pakistan Department of CS University of OkaraOkara56310Pakistan Department of Botany University of OkaraOkara56310Pakistan Department of Computer College of Science and Arts in Ar RassQassim UniversityAr RassQassim52571Saudi Arabia

The guava plant has achieved viable significance in subtropics and tropics owing to its flexibility to climatic environments,soil conditions and higher human *** is cultivated in vast areas of Asian and Non-Asian countries,including *** guava plant is vulnerable to diseases,specifically the leaves and fruit,which result in massive crop and profitability *** existing plant leaf disease detection techniques can detect only one disease from a ***,a single leaf may contain symptoms of multiple *** study has proposed a hybrid deep learning-based framework for the real-time detection of multiple diseases from a single guava leaf in several ***,Guava Infected Patches Modified MobileNetV2 and U-Net(GIP-MU-NET)has been proposed to segment the infected guava *** proposed model consists of modified MobileNetv2 as an encoder,and the U-Net model’s up-sampling layers are used as a decoder ***,the Guava Leaf SegmentationModel(GLSM)is proposed to segment the healthy and infected *** the final step,the Guava Multiple Leaf Diseases Detection(GMLDD)model based on the YOLOv5 model detects various diseases from a guava *** self-collected datasets(the Guava Patches Dataset and the Guava Leaf Diseases Dataset)are used for training and *** proposed method detected the various defects,including five distinct classes,i.e.,anthracnose,insect attack,nutrition deficiency,wilt,and *** average,the GIP-MU-Net model achieved 92.41%accuracy,the GLSM gained 83.40%accuracy,whereas the proposed GMLDD technique achieved 73.3%precision,73.1%recall,71.0%mAP@0.5 and 50.3 mAP@0.5:0.95 scores for all the aforesaid classes.

关键词： Guava leaf diseases guava leaf segmentation guava patches segmentation multiple leaf diseases guava leaf diseases dataset

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