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Techno-economic analysis of a hybrid renewable energy system integrated with productive activities in an underdeveloped rural region of eastern Indonesia

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Clean Energy 2023年第6期7卷 1247-1267页

作者： Alya Nurul Shafira subhan petrana Rahma Muthia Widodo Wahyu Purwanto Sustainable Energy Systems and Policy Research Cluster Universitas IndonesiaDepok16424Indonesia Chemical Engineering Department Faculty of EngineeringUniversitas IndonesiaDepok16424Indonesia Master Program in Energy Systems Engineering Faculty of EngineeringUniversitas IndonesiaDepok16424Indonesia

The Southwest Maluku region in eastern Indonesia is considered a frontier,outermost and underdeveloped *** inhabitants live on isolated islands,including the residents of Mahaleta Village,where only 9.4%of the community have limited access to *** study aimed to design an economically feasible hybrid renewable energy(RE)system based on solar and wind energy to integrate with the productive activities of the *** study developed conceptual schemes to meet the demand for electricity from the resi-dential,community,commercial and productive sectors of the *** analysis was performed using a techno-economic *** hybrid system was designed using the HOMER Pro optimization function,and cold-storage and dryer systems were designed to support related productive *** optimized design of the hybrid RE system comprised 271.62 kW of solar photovoltaics,80 kW of wind turbines and a 1-MWh lead-acid *** found that the hybrid RE system would only be economically feasible with a full-grant incentive and an electricity tariff of$0.0808/***,the productive activity schemes were all economically feasible,with a cold-storage cost of$0.035/kg and a drying cost of$0.082/*** the hybrid RE system with productive activities can improve the economic feasibility of the energy system and create more jobs as well as increase income for the local community.

关键词： underdeveloped region hybrid renewable energy system photovoltaics wind turbine Indonesia

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Rising incidence of acute hepatitis A among adults and clinical characteristics in a tertiary care center of Pakistan

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World Journal of Virology 2025年第1期14卷 73-82页

作者： Yumna Shahid Amna subhan Butt Iqra Jamali Faisal Wasim Ismail Division of Gastroenterology Department of MedicineAga Khan University HospitalKarachi 74800Pakistan Department of Medicine Aga Khan University HospitalKarachi 74800Pakistan

BACKGROUND For decades,hepatitis A virus(HAV)has been a leading cause of acute hepatitis among children and was less prevalent among ***,recently a paradigm shift has been observed in the epidemiology of HAV,as evident by cases of acute hepatitis due to HAV among *** To estimate frequency of HAV in acute viral hepatitis and compare characteristics in HAV and hepatitis E virus(HEV)*** This was a trend analysis conducted at Aga Khan University Hospital Karachi(Sindh,Pakistan)from February 2024 to May *** aged 18 years and older diagnosed with acute viral hepatitis attributed to hepatotropic viruses in 2024 were *** compare the trend patients admitted with acute hepatitis during 2019-2023 were also *** regarding clinical and laboratory parameters were *** yearly trend of acute hepatitis due to HAV and HEV was analyzed,and comparative analysis was done between HAV and HEV cases among *** A total of 396 patients were found to have acute hepatitis during our study *** was diagnosed in 234 patients(59%)while 157 patients(39.6%)were found to have acute HEV ***,acute hepatitis B virus infection was identified in 3 patients(0.7%),whereas acute hepatitis C virus infection was found in 2(0.5%)cases of acute *** trends showed increasing occurrence of HAV infection among adults over last 5 *** patients with acute HAV were younger than patients with HEV(28 years±8 years vs 30 years±8 years;P<0.01).Higher levels of total bilirubin were seen in HEV infection,while higher levels of alanine transaminase were seen in HAV ***,a higher proportion of acute liver failure(ALF),coagulopathy,and mortality were observed in *** An increase in acute hepatitis A cases among adults shows less severity than hepatitis E,highlighting the need for better sanitation,hygiene,and adult hepatitis A vaccination programs.

关键词： Acute hepatitis Hepatitis A virus Hepatitis E virus Acute liver failure Hepatotropic virus Vaccination

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Combined Role of ACC Deaminase Producing Bacteria and Biochar on Cereals Productivity under Drought

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Phyton-International Journal of Experimental Botany 2020年第2期89卷 217-227页

作者： subhan Danish Muhammad Zafar-ul-Hye Department of Soil Science Faculty of Agricultural Sciences and TechnologyBahauddin Zakariya UniversityMultan60800Pakistan Soil and Water Testing Laboratory PakArab Fertilizer LimitedPlantsiteMultan60800Pakistan

Most of the cereal crops are widely cultivated to fulfil the humans food *** changing climate scenario,the intensity of drought stress is continuously increasing that is adversely affecting the growth and yield of cereal *** the cereals can tolerate moderate drought to some extent,but mostly they are susceptible to severe drought *** biosynthesis of ethylene under drought stress has been *** scientists observed that inoculation of 1-aminocyclopropane-1-carboxylate(ACC)deaminase producing plant growth promoting rhizobacteria(PGPR)is an efficacious tool to overcome this *** PGPR secrete ACC deaminase which cleavage the ACC into the compounds,other than ***,secretion of growth hormones also play imperative role in enhancing the growth of the cereals under limited availability of *** addition,the use of biochar has also been recognized as another effective amendment to grant resistance against *** application improves the soil physiochemical attributes i.e.,porosity,nutrients retention and water holding capacity which decrease the loss of water and increase its *** recent era,the idea of coapplication of ACC deaminase producing PGPR and biochar is becoming popular which might be more efficient to use water under drought *** aim of current review is to combine the facts and understanding of this novel idea to grant maximum resistance to crops against drought *** scientists have observed significant improvement in yield of cereal crops by combined use of ACC deaminase producing PGPR and ***,more research is suggested for deep understanding of complex synergistic mechanism of ACC deaminase activity in combination with biochar.

关键词： ACC deaminase biochar cereals drought ethylene PGPR yield

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Metabolic dysfunction-associated fatty liver disease and low muscle strength: A comment

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World Journal of Gastroenterology 2024年第17期30卷 2371-2373页

作者： Masood Muhammad Karim Amna subhan Butt Department of Gastroenterology The Aga Khan University HospitalKarachi 74800SindhPakistan Department of Medicine Aga Khan University HospitalKarachi 74800Pakistan

The diagnosis of non-alcoholic fatty liver disease(NAFLD)and metabolic dysfunction-associated fatty liver disease only on the basis of laboratory parameter score such as Hepatic Steatosis Index which includes liver enzymes,gender,basal metabolic index,and presence of diabetic mellitus is not sufficient to exclude other causes of deranged liver enzymes especially medications and autoimmune related liver *** the guideline suggests ultrasound is the preferred first-line diagnostic procedure for imaging of NAFLD,as it provides additional diagnostic information and the combination of biomarkers/scores and transient elastography might confer additional diagnostic accuracy and evident from previous similar studies too.

关键词： Non-alcoholic fatty liver disease Metabolic dysfunction associated fatty liver disease Low muscle strength Hepatic Steatosis Index Letter to the editor

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Fuzzy-Based Sentiment Analysis System for Analyzing Student Feedback and Satisfaction

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Computers, Materials & Continua 2020年第2期62卷 631-655页

作者： Yun Wang Fazli subhan Shahaboddin Shamshirband Muhammad Zubair Asghar Ikram UllahAmmara Habib School of Public Administration Zhengzhou UniversityZhengzhouChina National University of Modern Languages IslamabadPakistan Department for Management of Science and Technology Development Ton Duc Thang UniversityHo Chi Minh CityVietnam Faculty of Information Technology Ton Duc Thang UniversityHo Chi Minh CityViet Nam Institute of Computing and Information Technology Gomal UniversityD.I.Khan(KP)Pakistan

The feedback collection and analysis has remained an important subject matter for *** traditional techniques for student feedback analysis are based on questionnaire-based data collection and ***,the student expresses their feedback opinions on online social media sites,which need to be *** study aims at the development of fuzzy-based sentiment analysis system for analyzing student feedback and satisfaction by assigning proper sentiment score to opinion words and polarity shifters present in the input *** technique computes the sentiment score of student feedback reviews and then applies a fuzzy-logic module to analyze and quantify student’s satisfaction at the fine-grained *** experimental results reveal that the proposed work has outperformed the baseline studies as well as state-of-the-art machine learning classifiers.

关键词： Student feedback analysis sentiments opinion words polarity shifters lexicon-based

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Photocatalytic and Antibacterial Activities of Ag/ZnO Nanocomposities Fabricated by Co-Precipitation Method

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Acta Metallurgica Sinica(English Letters) 2014年第2期27卷 223-232页

作者： Md.Abdus subhan M.R.Awal Tanzir Ahmed M.Younus Department of Chemistry Shah Jalal University of Science and Technology

A Ag/ZnO nanocomposite has been synthesized and characterized for investigating its photocatalytic activity. The morphology and particle size of the Ag/ZnO was studied by scanning electron microscope （SEM） and the microstructure of the as-synthesized nanocomposite was confirmed by X-ray diffraction （XRD） analysis. The elemental com- position of the metal oxide was determined by energy dispersion spectrometry （EDS）. Diffuse reflectance spectra （DRS）, Photoluminescence （PL） spectra, and Fourier transform infrared spectroscopy （FTIR） were also studied for characterizing the nanocomposite. The average particle size was found to be around 20-30 nm. Photocatalytic activity of Ag/ZnO has been investigated over methyl violet （6B） dye under UV and visible light irradiation. The degradation of methyl violet （6B） dye using ZnO and Ag/ZnO was compared and found that Ag/ZnO composite is more efficient than ZnO. The rate of disappearance of dye was monitored spectrophotometrically in the maximum visible absorption wavelength and the extent of degradation was discussed in terms of Langmuir-Hinshelwood model. The Ag/ZnO composite was found capable of degrading the industrial dye effluent. Effect of H202 addition on dye degradation by the Ag/ZnO was investigated and Ag/ ZnO was found to be an effective antimicrobial agent. Reusability of Ag/ZnO catalyst was also tested.

关键词： Nanocomposite Photocatalyst Metal oxide Dye degradation Photoluminescence

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Redefining non-alcoholic fatty liver disease to metabolic associated fatty liver disease: Is this plausible?

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World Journal of Hepatology 2022年第1期14卷 158-167页

作者： Jalpa Devi Aimun Raees Amna subhan Butt Department of Gastroenterology Liaquat University of Medical and Health SciencesJamshoro 74800Pakistan Department of Gastroenterology Aga Khan University HospitalKarachi 74800Pakistan

Recently,a single letter change has taken the world by storm.A group of experts have developed a consensus to upgrade the term non-alcoholic fatty liver disease(NAFLD)to metabolic associated fatty liver disease(MAFLD),suggesting that MAFLD would more accurately reflect not only the disease pathogenesis but would also help in patient stratification for management with ***,the difference of opinion exists,which has made the NAFLD vs MAFLD debate the current talk of the *** review will focus on the plausibility and implications of redefining NAFLD as MAFLD.

关键词： Non-alcoholic fatty liver disease Metabolic associated fatty liver disease Fatty liver disease Non-alcoholic fatty liver Review

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Position Vectors Based Efcient Indoor Positioning System

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Computers, Materials & Continua 2021年第5期67卷 1781-1799页

作者： Ayesha Javed Mir Yasir Umair Alina Mirza Abdul Wakeel Fazli subhan Wazir Zada Khan Department of Electrical Engineering Military College of SignalsNational University of Sciences and TechnologyIslamabad44000Pakistan Department of Computer Engineering National University of Modern Languages(NUML)Islamabad44000Pakistan Department of Computer Science and Information Security Jazan UniversityJazan45142Saudi Arabia

With the advent and advancements in the wireless technologies,Wi-Fi ngerprinting-based Indoor Positioning System(IPS)has become one of the most promising solutions for localization in indoor *** the outdoor environment,the lack of line-of-sight propagation in an indoor environment keeps the interest of the researchers to develop efcient and precise positioning systems that can later be incorporated in numerous applications involving Internet of Things(IoTs)and green *** this paper,we have proposed a technique that combines the capabilities of multiple algorithms to overcome the complexities experienced ***,in the database development phase,Motley Kennan propagation model is used with Hough transformation to classify,detect,and assign different attenuation factors related to the types of ***,important parameters for system accuracy,such as,placement and geometry of Access Points(APs)in the coverage area are also *** algorithm for deployment of an additional AP to an already existing infrastructure is proposed by using Genetic Algorithm(GA)coupled with Enhanced Dilution of Precision(EDOP).Moreover,classication algorithm based on k-Nearest Neighbors(k-NN)is used to nd the position of a stationary or mobile user inside the given coverage *** k-NN to provide low localization error and reduced space dimensionality,three APs are required to be selected *** this paper,we have suggested an idea to select APs based on Position Vectors(PV)as an input to the localization *** from our comprehensive investigations,it is revealed that the accuracy of indoor positioning system using the proposed technique unblemished the existing solutions with signicant improvements.

关键词： Indoor positioning systems Internet of Things access points position vectors genetic algorithm k-nearest neighbors

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Plasticity of leaf morphology of Bruguiera sexangula to salinity zones in Bangladesh's Sundarbans

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Journal of Forestry Research 2022年第6期33卷 1857-1866页

作者： Md.Salim Azad Abdus subhan Mollick Rawnak Jahan Khan Ranon Md.Nabiul Islam Khan Md.Kamruzzaman Forestry and Wood Technology Discipline Khulna UniversityKhulna 9208Bangladesh Graduate School of Agriculture Kyoto UniversityKyoto 606-8501Japan

Bruguiera sexangula(Lour.)Poir is an exclusive evergreen mangrove species to the Sundarbans of *** grows well in moderate saline zones with full *** study presents leaf morphological plasticity in *** to saline *** were sampled from different saline zones and various morphological traits were *** results exposed a wide deviations of leaf size parameters:leaf length varied 6.6–17.3 cm;width 2.7–7.8 cm;upper quarter width 2.2–6.5 cm;down quarter width 2.5–7.3 cm;and petiole length 0.17–1.43 *** length was significantly larger in fresh water than in other salinity zones,whereas,leaf width,upper and lower leaf quarters were significantly larger in medium saline *** shape parameters showed a large variation among saline *** base angle was significantly larger in both medium and strong salinity *** angle was significantly greater in medium salinity *** perimeter was significantly larger in fresh water but leaf area was significantly bigger in medium saline *** index and specific leaf area were maximum in moderate saline *** index was the highest in moderate saline for almost all the parameters *** ordination(PCA)showed clusters of leaf samples although there were some overlap among them which suggested a salt-stress relationship among salinity *** results indicate that *** had a plasticity strategy on leaf morphological parameters to salinity in the *** study will provide basic information of leaf plasticity of this species among saline zones which will help for site selection of coastal planting and will also provide information for policy makers to take necessary steps for its conservation.

关键词： Salinity stress Phenotypic variation Plasticity index Specific leaf area PCA

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Plant Derived Antiviral Products for Potential Treatment of COVID-19: A Review

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Phyton-International Journal of Experimental Botany 2020年第3期89卷 437-452页

作者： Rashid Iqbal Khan Mazhar Abbas Khurram Goraya Muhammad Zafar-ul-Hye subhan Danish Institute of Hoticultural Sciences University of Agriculture FaisalabadFaisalabad38000Pakistan Office for Conservation of the Environment Diwan of Royal Court of OmanMuscat113Oman Department of Soil Science Faculty of Agricultural Sciences and TechnologyBahauddin Zakariya UniversityMultan60800Pakistan

COVID-19 caused by SARS-CoV-2 is declared global *** virus owing high resemblance with SARS-CoVand MERS-CoV has been placed in family of ***,transmission and infectivity rate of COVID-19 is quite higher as compared to other members of *** management strategy with potential drug availability will break the virus transmission chain subsequently reduce the pressure on the healthcare *** research trials are underway to develop novel efficient therapeutics against *** this review,we have discussed the origin and family of coronavirus,structure,genome and pathogenesis of virus SARS-CoV-2 inside human host cell;comparison among SARS,MERS,SARS-CoV-2 and common flu;effective management practices;treatment with immunity boosters;available medication with ongoing clinical *** suggest medicinal plants could serve as potential candidates for drug development against COVID-19 infection.

关键词： Virus human health bat SARS-CoV-2 fever Wuhan

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