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Radiative Blood-Based Hybrid Copper-Graphene Nanoliquid Flows along a Source-Heated Leaning Cylinder

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Computer Modeling in Engineering & Sciences 2024年第4期139卷 1017-1037页

作者： Siti nur Ainsyah Ghani Noor Fadiya Mohd Noor Institute of Mathematical Sciences Faculty of ScienceUniversiti MalayaKuala Lumpur50603Malaysia Center for Data Analytics Consultancy&Services(UM-CDACS) Faculty of ScienceUniversiti MalayaKuala Lumpur50603Malaysia

Variant graphene,graphene oxides(GO),and graphene nanoplatelets(GNP)dispersed in blood-based copper(Cu)nanoliquids over a leaning permeable cylinder are the focus of this *** forms of graphene are highly beneficial in the biological and medical fields for cancer therapy,anti-infection measures,and drug *** non-Newtonian Sutterby(blood-based)hybrid nanoliquid flows are generalized within the context of the Tiwari-Das model to simulate the effects of radiation and heating *** governing partial differential equations are reformulated into a nonlinear set of ordinary differential equations using similar transformational *** equations are then transformed into boundary value problems through a shooting technique,followed by the implementation of the bvp4c tool in *** influences of various parameters on the model’s nondimensional velocity and temperature profiles,reduced skin friction,and reduced Nusselt number are presented for detailed *** results indicated that Cu-GNP/blood and Cu-GO/blood hybrid nanofluids exhibit the lowest and highest velocity distributions,respectively,for increased nanoparticles volume fraction,curvature parameter,Sutterby fluid parameter,Hartmann number,and wall permeability ***,opposite trends are observed for the temperature distribution for all considered parameters,except the mixed convection *** in the reduced skin friction magnitude and the reduced Nusselt number with higher values of graphene/GO/GNP nanoparticle volume fraction are also ***,GNP is identified as the superior heat conductor,with an average increase of approximately 5%and a peak of 7.8%in the reduced Nusselt number compared to graphene and GO nanoparticles in the Cu/blood nanofluids.

关键词： Hybrid nanofluid sutterby fluid tiwari-das model thermal radiation graphene graphene oxides graphene nanoplatelets

Assessment of spongy moth infestation impacts on forest productivity and carbon loss using the Sentinel-2 satellite remote sensing and eddy covariance flux data

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Ecological Processes 2024年第2期13卷 231-245页

作者： nur Hussain Alemu Gonsamo Shusen Wang M.Altaf Arain School of Earth Environment and Society and McMaster Centre for Climate Change Mc Master University Canada Centre for Remote Sensing Natural Resources Canada

Background Deciduous forests in eastern North America experienced a widespread and intense spongy moth（Lymantria dispar） infestation in 2021. This study quantified the impact of this spongy moth infestation on carbon（C） cycle in forests across the Great Lakes region in Canada, utilizing high-resolution（10 × 10 m2） Sentinel-2 satellite remote sensing images and eddy covariance（EC） flux data. Study results showed a significant reduction in leaf area index（LAI） and gross primary productivity（GPP） values in deciduous and mixed forests in the region in *** Remote sensing derived, growing season mean LAI values of deciduous（mixed） forests were 3.66（3.18）, 2.74（2.64）, and 3.53（2.94） m2m-2in 2020, 2021 and 2022, respectively, indicating about 24（14）% reduction in LAI, as compared to pre-and post-infestation years. Similarly, growing season GPP values in deciduous（mixed） forests were 1338（1208）, 868（932）, and 1367（1175） g C m-2, respectively in 2020, 2021 and 2022, showing about 35（22）% reduction in GPP in 2021 as compared to pre-and post-infestation years. This infestation induced reduction in GPP of deciduous and mixed forests, when upscaled to whole study area（178,000 km2）, resulted in 21.1（21.4） Mt of C loss as compared to 2020（2022）, respectively. It shows the large scale of C losses caused by this infestation in Canadian Great Lakes *** The methods developed in this study offer valuable tools to assess and quantify natural disturbance impacts on the regional C balance of forest ecosystems by integrating field observations, high-resolution remote sensing data and models. Study results will also help in developing sustainable forest management practices to achieve net-zero C emission goals through nature-based climate change solutions.

关键词： Spongy moth Infestation Carbon Gross ecosystem productivity Leaf area index Temperate forest Remote sensing Sentinel-2 Eddy covariance

Unscented Kalman filter for a low-cost GNSS/IMU-based mobile mapping application under demanding conditions

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Geodesy and Geodynamics 2024年第2期15卷 166-176页

作者： Mokhamad nur Cahyadi Tahiyatul Asfihani Hendy Fitrian Suhandri Risa Erfianti Department of Geomatics Engineering Institut Teknologi Sepuluh NopemberSurabaya 6011Indonesia Research Center of Marine and Earth Science Technology Directorate of Research and Community ServiceInstitut Teknologi Sepuluh NopemberSurabaya 60111Indonesia Department of Mathematics Institut Teknologi Sepuluh NopemberSurabaya 60111Indonesia Centre of Studies for Surveying Science&Geomatics Universiti Teknologi Mara(UiTM)Shah Alam 40450Malaysia

For the last two decades,low-cost Global Navigation Satellite System(GNSS)receivers have been used in various *** receivers are mini-size,less expensive than geodetic-grade receivers,and in high *** of these outstanding features,low-cost GNSS receivers are potentially poorer hardwares with internal signal processing,resulting in lower *** typically come with low-cost GNSS antenna that has lower performance than their counterparts,particularly for multipath ***,this research evaluated the low-cost GNSS device performance using a high-rate kinematic *** this purpose,these receivers were assembled with an Inertial Measurement Unit(IMU)sensor,which actively transmited data on acceleration and orientation rate during the *** position and navigation parameter data were obtained from the IMU readings,even without GNSS signals via the U-blox F9R GNSS/IMU device mounted on a *** research was conducted in an area with demanding conditions,such as an open sky area,an urban environment,and a shopping mall basement,to examine the device’s *** data were processed by two approaches:the Single Point Positioning-IMU(SPP/IMU)and the Differential GNSS-IMU(DGNSS/IMU).The Unscented Kalman Filter(UKF)was selected as a filtering algorithm due to its excellent performance in handling nonlinear system *** result showed that integrating GNSS/IMU in SPP processing mode could increase the accuracy in eastward and northward components up to 68.28%and 66.64%.Integration of DGNSS/IMU increased the accuracy in eastward and northward components to 93.02%and 93.03%compared to the positioning of standalone *** addition,the positioning accuracy can be improved by reducing the IMU noise using low-pass and high-pass *** application could still not gain the expected position accuracy under signal outage conditions.

关键词： LoW-cost GNSS GNSS/IMU Single Point Positioning-IMU(SPP/IMU) Differential GNSS-IMU(DGNSS/IMU) Unscented Kalman Filter(UKF) Outageconditions

Exogenous testosterone therapy on choroid in androgen deficiency

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International Journal of Ophthalmology(English edition) 2024年第8期17卷 1489-1494页

作者： Volkan Yeter nurullah Koçak Merve Kalyoncu Ramazan Aşçi nurşen Aritürk Department of Ophthalmology Ondokuz Mayıs UniversitySamsun 55139Turkey Department of Urology Ondokuz Mayıs UniversitySamsun 55139Turkey

AIM:To investigate the effects of exogenous testosterone treatment on the choroidal parameters in patients with androgen ***:Right eyes of 24 patients with androgen deficiency and 31 healthy volunteers were included in the *** eyes were scanned for subfoveal choroidal thickness(SFCT),choroidal vascularity index(CVI),choroidstromal area(C-SA),choroid-luminal area(C-LA),choroidstromal to luminal area ratio(CSLR),and the choroidal parameters within central 1500μm of the macula(CVI1500,C-LA1500,C-SA1500,and CSLR1500)by enhanced-depth imaging optical coherence tomography(EDI-OCT)at baseline,6th and 18th weeks of the exogenous testosterone ***:The mean SFCT values of the androgen deficient groups and healthy controls were 307.7±27.0 and 303.2±37.2μm(P=0.8).However,CVI,C-SA,CSLR,CVI1500,C-LA1500,and CSLR1500 were significantly different between the groups(all P0.05).However,CVI1500 and LA1500 significantly increased at the end of the follow-up period(P<0.001).CONCLUSION:CVI is lower in androgen-deficient patients than in healthy *** alterations in the choroid during the testosterone peak are transient in the treatment of patients with androgen ***,the increase in CVI within the central 1500μm of the macula persists even after 4mo.

关键词： testosterone androgen deficiency choroid vascularity index

Biodiesel production from waste cooking oil using calcium oxide derived from scallop shell waste

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Clean Energy 2024年第2期8卷 113-126页

作者： Poppy Puspitasari Diki Dwi Pramono Davi nur Fiansyah Avita Ayu Permanasari Nandang Mufti Jeefferie Abd Razak Department of Mechanical and Industrial Engineering Universitas Negeri MalangMalangIndonesia Centre of Advanced Material and Renewable Energy Universitas Negeri MalangMalangIndonesia Department of Physics Faculty of Mathematics and Natural SciencesUniversitas Negeri MalangMalangIndonesia Fakulti Kejuruteraan Pembuatan Universiti Teknikal Malaysia MelakaMelakaMalaysia

Biodiesel is one of the alternative forms of diesel fuel and can be obtained using the transesterification process of waste cooking oil with a catalyst to accelerate the *** heterogeneous catalyst from waste scallop shells is used due to its potential for being reused in the subsequent transesterification *** catalysts can also be recycled,contributing to their environmentally friendly *** study aims to identify the performance of recycling a calcium oxide(CaO)catalyst from scallop shell waste on synthesis *** method used is the transesterification method with the basic ingredients of waste cooking oil using a CaO ***,after the transesterification process is complete,the catalyst is separated from the biodiesel and recycled to be reused in the transesterification process up to five *** biodiesel samples obtained are identified for yield value,physico-chemical properties,thermal properties and performance.X-ray diffraction characterization results for the CaO catalyst show that it has a crystal size of 67.83 *** electron microscope characterization shows that it has spherical particle *** transform infrared characterization shows the presence of Ca-O *** highest biodiesel yield value of 74.23%is obtained in biodiesel Cycle *** flash point value of biodiesel samples ranges from 141.2℃ to 149℃.Further,all of the biodiesel samples exhibit a cetane number of *** highest lower heating value of 38.22 MJ/kg is obtained in biodiesel Cycle 1 and the viscosity of the biodiesel samples ranges from 5.65 to 5.88 *** density of the biodiesel samples ranges from 881.23 to 882.92 kg/***,ester functional groups(C=O)and methyl functional groups have been successfully formed in all samples,with the methyl oleate compound observed as dominating the biodiesel *** cloud point value of the biodiesel samples ranges from 12℃ to 13℃,and their pour point value ranges from 10℃ to

关键词： biodiesel CaO catalyst waste cooking oil scallop shell

Inflammatory responses in esophageal mucosa before and after laparoscopic antireflux surgery

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World Journal of Gastrointestinal Surgery 2024年第3期16卷 871-881页

作者： Pelin Ergun Sezgi Kipcak nur Selvi Gunel Eser Yildirim Sozmen Serhat Bor Department of Otolaryngology Medical College of WisconsinMilwaukeeWI 53226United States Division of Gastroenterology Ege UniversityFaculty of MedicineEge Reflux GroupIzmir 35100Turkiye Department of Medical Biology Ege UniversityFaculty of MedicineIzmir 35100Turkiye Department of Medical Biochemistry Ege UniversityFaculty of MedicineIzmir 35100Turkiye

BACKGROUND Currently,the primary treatment for gastroesophageal reflux is acid suppression with proton pump inhibitors,but they are not a cure,and some patients don’t respond well or refuse long-term ***,alternative therapies are needed to understand the disease and develop better *** anti-reflux surgery(LARS)can resolve symptoms of these patients and plays a significant role in evaluating esophageal healing after preventing harmful *** LARS improves typical gastroesophageal reflux symptoms in most patients,main-ly by reducing the exposure time to gastric contents in the ***-ration of the inflammatory response and a recovery response in the esophageal epithelium is expected following the cessation of the noxious *** To explore the role of inflammatory biomolecules in LARS and assess the time required for esophageal epithelial *** Of 22 patients with LARS(pre-and post/5.8±3.8 months after LARS)and 25 healthy controls(HCs)were *** subjects underwent 24-h multichannel intraluminal impedance-pH monitoring and upper gastrointestinal endoscopy,during which esophageal biopsy samples were collected using endoscopic *** molecules in esophageal biopsies were investigated by reverse transcription-polymerase chain reaction and multiplex-enzyme-linked immunosorbent *** Post-LARS samples showed significant increases in proinflammatory cytokines[interleukin(IL)-1β,interferon-γ,C-X-C chemokine ligand 2(CXCL2)],anti-inflammatory cytokines[CC chemokine ligand(CCL)11,CCL13,CCL17,CCL26,CCL1,CCL7,CCL8,CCL24,IL-4,IL-10],and homeostatic cytokines(CCL27,CCL20,CCL19,CCL23,C-CL25,CXCL12,migration inhibitory factor)compared to both HCs and pre-LARS ***17 and CCL21 levels were higher in pre-LARS than in HCs(P<0.05).The mRNA expression levels of AKT1,fibroblast growth factor 2,HRAS,and mitogen-activated protein kinase 4 were significantly decreased post-LARS vs pre-LARS.

关键词： Anti-reflux surgery Gastroesophageal reflux disease Cytokine Inflammatory response Esophagus

A multi-mechanistic approach to the oil recovery study of a family of amphiphilic polysaccharides

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Petroleum Research 2024年第2期9卷 238-249页

作者： Funsho Afolabi Syed MMahmood Lunech Mario nur Asyraf Md Akhir Bennett Tackie-Otoo Hamid Sharifigaliuk Center of Research in Enhanced Oil Recovery Universiti Teknologi PETRONASSeri IskandarMalaysia Center for Subsurface Imaging Universiti Teknologi PETRONASSeri IskandarMalaysia Research Institute of Petroleum Industry(RIPI) TehranIran

Chemical enhanced oil recovery(cEOR)remains one of the most potent tertiary recovery ***,it is expensive and rarely environmentally ***-based amphiphilic polymers have been suggested as an alternative to eradicating the challenges of conventional cEOR because of cost-effectiveness,and ***,few in-depth studies exist in the literature to investigate the prospects of these materials.A new family of amphiphilic polysaccharides was synthesized by hydrophobic modification of cellulose sulphate,and the EOR functionalities were *** novel biopolymers exhibited the ability to alter rock wetting *** terms of recovery,one of the variants of the synthesized bio amphiphilic polymer(D-I)was able to reduce residual oil saturation to 12%at harsh conditions of 60,000 ppm salinity at 75℃.Micromodel visual analysis revealed that the performance of the novel materials was due to the combination of mobility control,IFT lowering and emulsification,wettability alteration,and *** a performance commensurate to that of a commercial hydrophobically modified polymer,it can be said that the novel amphiphilic polysaccharides can stand as a viable cEOR agent for oilfield applications.

关键词： Bio-based polymers Amphiphilic polysaccharides EOR Cellulose sulphate Environmental sustainability

Unlocking the growth potential:harnessing the power of synbiotics to enhance cultivation of Pleurotus spp.

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第4期25卷 293-306页

作者： Reshma PATIL Aizi Nor Mazila RAMLI Ang Shu XUAN Ng Zhi XIN nur Izyan Wan AZELEE Prakash BHUYAR Faculty of Industrial Sciences and Technology Universiti Malaysia Pahang Al-Sultan Abdullah(UMPSA)Gambang26300Malaysia BioAromatic Research Centre of Excellence Universiti Malaysia Pahang Al-Sultan Abdullah(UMPSA)Gambang26300Malaysia Department of Bioprocess&Polymer Engineering Faculty of EngineeringUniversiti Teknologi MalaysiaJohor81310Malaysia Organic Agriculture Management Maejo University International College(MJU-IC)Maejo UniversityChiang Mai50290Thailand International Industry and Agriculture Innovation Research Center(IIAR) International CollegeMaejo UniversityChiang Mai50290Thailand

The oyster mushroom(Pleurotus spp.)is one of the most widely cultivated mushroom species *** present study investigated the effect of synbiotics on the growth and quality of Pleurotus ostreatus and Pleurotus *** synbiotics formulations were applied by spraying mushroom samples daily and measuring their growth parameters,yield,biological efficiency,proximate composition,mineral content,total phenolic content(TPC),and diphenyl-1-picryl-hydrazyl(DPPH)radical scavenging *** demonstrated that the most significant yield of oyster mushrooms was harvested from synbiotics sprayed with inulin and Lactobacillus casei(56.92 g).Likewise,the highest biological efficiency obtained with a similar synbiotic was 12.65%.Combining inulin and *** was the most effective method of improving the mushrooms'growth performance and nutrient content in both ***,synbiotics that combined inulin and *** resulted in the highest TPC(20.550 mg gallic acid equivalent(GAE)/g dry extract(DE))in white oyster mushrooms(***).In comparison,in grey mushroom(***)the highest TPC was yielded by ***(1.098 mg GAE/g DE)followed by inulin and ***(1.079 mg GAE/g DE).The DPPH results indicated that the oyster mushroom could be an efficient *** results revealed that applying synbiotics improved the mushrooms'quality by increasing their antioxidant capacity with higher amounts of phenolic compounds and offering better health benefits with the increased levels of mineral ***,these studies demonstrated the potential of using synbiotics as a biofertilizer,which is helpful for mushroom cultivation;therefore,it might solve the challenge of inconsistent quality mushroom growers face.

关键词： Antioxidant Biofertilizer Growth performance Mushroom cultivation Pleurotus Synbiotics

Reproductive cycle of the oyster Crassostrea(Magallana)saidii(Wong and Sigwart,2021)from Southeast Asia

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Aquaculture and Fisheries 2024年第4期9卷 653-662页

作者： Arun Chandra Barman nur Leena W.S.Wong Murni Marlina Abd Karim Department of Aquaculture Faculty of AgricultureUniversiti Putra MalaysiaSerdangSelangor43400Malaysia Bangladesh Fisheries Research Institute(BFRI) Mymensingh2201Bangladesh International Institute of Aquaculture and Aquatic Sciences(I-AQUAS) Universiti Putra MalaysiaSerdangSelangor43400Malaysia

Crassostrea(Magallana)saidii has been commercially ranched in Malaysia and consumed for more than 160 years,but it was only recently identified as a new species to *** study was conducted to evaluate the reproductive phenology of C.(M.)*** of 30 individual oysters were taken monthly for 15 months from the sole population at Sungai Muar estuary in Johor,*** sex ratio was 1:1.64(male:female)for all examined specimens,with female numbers significantly *** was detected in 1.56%of all *** peaks in April(2019)and November(2018 and 2019),and were positively associated with the increased rainfall *** occurred throughout the research period with temporal *** highest values of maturity index(MI)were recorded in March,August and October 2019,when most oysters were in matured and maturing *** index(CI)ranged from 31.90±1.25(April 2019)to 70.03±3.23(October 2019),exhibiting two peaks(March and October 2019)and subsequently reduced in CI indicating spawning consistency with histological *** stressors such as heavy sedimentation and inland development are threatening the survival of this *** understanding of their reproductive biology is essential to ensure the survival and sustainability of C.(M.)saidii fishery.

关键词： Crassostrea(M.)saidii Gonad phenology Sex ratio Maturity index Condition index Oyster