检索结果-南通市图书馆

Profiling seed soluble sugar compositions in 1164 Chinese soybean accessions from major growing ecoregions

在线全文

学校读者我要写书评

暂无评论

The Crop Journal 2022年第6期10卷 1825-1831页

作者： Jie Qi Shengrui Zhang muhammad AzamAbdul wahab S.Shaibu ahmed m.abdelghany Yue Feng Yuanyuan HuaiHuoyi Feng Yitian Liu Caiyou ma Berhane S.Gebregziabher Suprio Ghosh Jing Li Deyue Yu Bin Li Lijuan Qiu Junming Sun The National Engineering Research Center of Crop molecular Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China The National Key Facility for Crop Gene Resources and Genetic Improvement/Key Laboratory of Germplasm and Biotechnology(mARA) Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China mARA Key Laboratory of Soybean Biology(Beijing) Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China National Key Laboratory of Crop Genetics and Germplasm Enhancement National Center for Soybean ImprovementJiangsu Collaborative Innovation Center for Modern Crop ProductionNanjing Agricultural UniversityNanjing 210095JiangsuChina Department of Agronomy Bayero UniversityKano 700001Nigeria Crop Science Department Faculty of AgricultureDamanhour UniversityDamanhour 22516Egypt

Soluble sugar is a key quality trait of soybean *** developed rapid and economic extraction and quantification methods for seed soluble sugars using an ultra-high performance liquid chromatography system with a refractive index *** evaluated the soluble sugar compositions of 1164 soybean accessions collected from diverse ecoregions and grown in multiple locations and *** soluble sugar(TSS)content was influenced by accession type,year of cultivation,and *** mean contents of fructose,glucose,sucrose,raffinose,stachyose and TSS were 3.31,5.21,55.60,6.60,35.47,and 106.19 mg g^(-1),*** highest mean TSS content(108.71 mg g^(-1)) was observed in accessions from Northern Region of *** contained higher contents of sucrose,raffinose,and TSS,whereas landraces had a higher content of *** accessions with mean TSS contents>130 mg g^(-1) were identified as elite soybean *** was correlated with sucrose,raffinose,stachyose,protein,oil and total *** main soluble sugar components were correlated with latitude and longitude,indicating that the geographical origin of the accessions affected their seed soluble sugar *** developed methods and elite identified accessions can be used in the food and feed industry and in soybean breeding programs aimed at improving soybean seed nutrition.

关键词： Soluble sugars Soybean[Glycine max(L.)merrill] UPLC-RID Natural variation Geographical distribution

Surgical options for correction of refractive error following cataract surgery

在线全文

学校读者我要写书评

暂无评论

Eye and Vision 2014年第1期1卷 2-8页

作者： ahmed A abdelghany Jorge L Alio Clinical research fellow in Vissum Corporación Alicante Universidad Miguel HernándezAlicanteSpain minia University MiniaEgypt Vissum Corporación AlicanteSpain Division of Ophthalmology Universidad Miguel HernándezAlicanteSpain Avda de Denia s/n Edificio VissumAlicante 03016Spain.

Refractive errors are frequently found following cataract surgery and refractive lens *** biometric analysis,selection and calculation of the adequate intraocular lens(IOL)and modern techniques for cataract surgery all contribute to achieving the goal of cataract surgery as a refractive procedure with no refractive ***,in spite of all these advances,residual refractive error still occasionally occurs after cataract surgery and laser in situ keratomileusis(LASIK)can be considered the most accurate method for its ***-based procedures,such as IOL exchange or piggyback lens implantation are also possible alternatives especially in cases with extreme ametropia,corneal abnormalities,or in situations where excimer laser is *** our review,we have found that piggyback IOL is safer and more accurate than IOL *** aim is to provide a review of the recent literature regarding target refraction and residual refractive error in cataract surgery.

关键词： Cataract surgery Target refraction Residual refractive error Refractive surprise Excimer laser surgery Photorefractive keratectomy Intraocular lens exchange Piggyback lens

4-Port Octagonal Shaped mImO Antenna with Low mutual Coupling for UWB Applications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer modeling in Engineering & Sciences 2023年第8期136卷 1999-2015页

作者： mahmoud A.abdelghany mohamed Fathy Abo Sree Arpan Desai ahmed A.Ibrahim Electrical Engineering Department College of EngineeringPrince Sattam bin Abdulaziz UniversityWadi Addwasir11991Saudi Arabia Electronic and Communication Department Arab Academy for ScienceTechnology and Maritime TransportCairo11865Egypt Department of Electronics and Communication Engineering CSPITCharotar University of Science and Technology(CHARUSAT)Changa388421India Electronics and Communications Engineering Department Minia UniversityEl-Minia61519Egypt

A4-port multiple-input multiple-output(mImO)antenna exhibiting lowmutual coupling andUWBperformance is *** octagonal-shaped four-antenna elements are connected with a 50microstrip feed line that is arranged rotationally to achieve the orthogonal polarization for improving the mImO system *** antenna has a wideband impedance bandwidth of 7.5GHz with S11m(103.44%)3.5–11GHz and inter-element isolation higher than 20 *** validation is carried out by verifying the simulated and measured results after fabricating the *** results in the form of omnidirectional radiation patterns,peak gain(≥4 dBi),and Envelope Correlation Coefficient(ECC)(≤0.01)are extracted to validate the suggested antenna ***,time-domain analysis was investigated to demonstrate the operation of the suggested antenna in wideband ***,the simulated and experimental outcomes have almost similar tendenciesmaking the antenna suitable for its use in UWBmImOapplications.

关键词： mImO antenna low mutual coupling time domain analysis UWB antenna

Nanosecond pulse and dual-wavelength Q-switched 1.5 μm fiber laser using mAX phase Cr2TiAlC2 saturable absorber

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Optoelectronics Letters 2025年第1期21卷 7-12页

作者： ahmed Shakir AL-HITI Hiba HASSAN Department of Electrical Engineering Faculty of Engineering University of Anbar Department of Laser and Optoelectronics Engineering University of Technology-Iraq

We demonstrated a new type of mAX phase material, chromium titanium aluminum carbide（Cr2TiAlC2） polymer film, to generate a passively Q-switched erbium-doped fiber laser（EDFL）. The film thickness was measured to be around 45 μm, which was fabricated using the embedding method with polyvinyl alcohol（PVA） polymer as hoster. The saturable absorber（SA） film demonstrates a dual-wavelength passively Q-switched EDFL which operates at 1 531 nm and 1 560.19 nm, respectively. The Q-switching pulse duration could be varied from 2.46 μs to 770 ns, while the repetition rate varied from 92.76 kHz to 106.6 kHz with an increasing input pumping range from 154 mW to 300 mW. The maximum output power and pulse energy of 15.05 mW and 141.18 nJ were obtained at the maximum input power of 300 mW, respectively.

关键词： Saturable absorbers

Type 2 diabetes and thyroid cancer:Synergized risk with rising air pollution

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

World Journal of Diabetes 2023年第7期14卷 1037-1048页

作者： Eva m Kruger Shaimaa A Shehata Eman A Toraih ahmed A abdelghany manal S Fawzy School of medicine Tulane UniversityNew OrleansLA 70112United States Department of Forensic medicine and Clinical Toxicology Faculty of MedicineSuez Canal UniversityIsmailia 41522Egypt Division of Endocrine and Oncologic Surgery Department of SurgerySchool of MedicineTulane UniversityNew OrleansLA 70112United States Genetics Unit Department of Histology and Cell BiologyFaculty of MedicineSuez Canal UniversityIsmailia 41522Egypt Department of Ophthalmology Faculty of MedicineSuez Canal UniversityIsmailia 41522Egypt Department of medical Biochemistry and molecular Biology Faculty of MedicineSuez Canal UniversityIsmailia 41522Egypt Department of Biochemistry Faculty of MedicineNorthern Border UniversityArar 1321Saudi Arabia

Diabetes is a complex condition,and the causes are still not fully ***,a growing body of evidence suggests that exposure to air pollution could be linked to an increased risk of ***,exposure to certain pollutants,such as particulate matter and Ozone,has been associated with higher rates of *** the same time,air pollution has also been linked to an increased risk of thyroid *** there is less evidence linking air pollution to thyroid cancer than to diabetes,it is clear that air pollution could have severe implications for thyroid *** pollution could increase the risk of diabetes and thyroid cancer through several *** example,air pollution could increase inflammation in the body,which is linked to an increased risk of diabetes and thyroid *** pollution could also increase oxidative stress,which is linked to an increased risk of diabetes and thyroid ***,air pollution could increase the risk of diabetes and thyroid cancer by affecting the endocrine *** review explores the link between diabetes and air pollution on thyroid *** will discuss the evidence for an association between air pollution exposure and diabetes and thyroid cancer,as well as the potential implications of air pollution for thyroid *** the connections between diabetes,air pollution,and thyroid cancer,it is essential to take preventive measures to reduce the risk of developing the condition.

关键词： Air pollution Diabetes mellitus Health risk Thyroid cancer Thyroid disorders

Gut virome:New key players in the pathogenesis of inflammatory bowel disease

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of methodology 2025年第2期15卷 27-43页

作者： Helal F Hetta Rehab ahmed Yasmin N Ramadan Hayam Fathy mohammed Khorshid mohamed m mabrouk mai Hashem Department of medical microbiology and Immunology Faculty of MedicineAssiut UniversityAssiut 71515Egypt Division of microbiology Immunology and BiotechnologyFaculty of pharmacyUniversity of TabukTabuk 71491Saudi Arabia Division of microbiology Immunology and BiotechnologyDepartment of Natural Products and Alternative MedicineFaculty of PharmacyUniversity of TabukTabuk 71491Saudi Arabia Department of Internal medicine Division HepatogastroenterologyAssiut UniversityAssiut 71515Egypt Department of Clinical Research Egyptian Developers of Gastroenterology and Endoscopy FoundationCairo 11936Egypt Department of Internal medicine Faculty of Medicine.Tanta UniversityTanta 31527Egypt Department of Tropical medicine Gastroenterology and HepatologyAssiut University HospitalAssiut 71515Egypt

Inflammatory bowel disease(IBD)is a chronic inflammatory illness of the *** the mechanism underlying the pathogenesis of IBD is not fully under-stood,it is believed that a complex combination of host immunological response,environmental exposure,particularly the gut microbiota,and genetic suscept-ibility represents the major *** gut virome is a group of viruses found in great frequency in the gastrointestinal tract of *** gut virome varies greatly among individuals and is influenced by factors including lifestyle,diet,health and disease conditions,geography,and *** majority of research has focused on the significance of gut bacteria in the progression of IBD,although viral populations represent an important component of the *** conducted this review to highlight the viral communities in the gut and their expected roles in the etiopathogenesis of IBD regarding published research to date.

关键词： Inflammatory bowel disease Pathogenesis Gut virome Bacteriophage Eukaryotic viruses

Boundary layer flow of maxwell fluid due to torsional motion of cylinder: modeling and simulation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applied mathematics and mechanics(English Edition) 2020年第4期41卷 667-680页

作者： m.KHAN A.ahmed J.ahmed Department of mathematics Quaid-i-Azam UniversityIslamabad 44000Pakistan Department of Basic Sciences University of Engineering and TechnologyTaxila 47050Pakistan

This paper investigates the boundary layer flow of the maxwell fluid around a stretchable horizontal rotating cylinder under the influence of a transverse magnetic *** constitutive flow equations for the current physical problem are modeled and analyzed for the first time in the *** torsional motion of the cylinder is considered with the constant azimuthal velocity *** partial differential equations(PDEs)governing the torsional motion of the maxwell fluid together with energy transport are simplified with the boundary layer *** current analysis is valid only for a certain range of the positive Reynolds ***,for very large Reynolds numbers,the flow becomes ***,the governing similarity equations are simplified through suitable transformations for the analysis of the large Reynolds *** numerical simulations for the flow,heat,and mass transport phenomena are carried out in view of the bvp4c scheme in *** outcomes reveal that the velocity decays exponentially faster and reduces for higher values of the Reynolds numbers and the flow penetrates shallower into the free stream *** is also noted that the phenomenon of stress relaxation,described by the Deborah number,causes to decline the flow fields and enhance the thermal and solutal energy transport during the fluid *** penetration depth decreases for the transport of heat and mass in the fluid with the higher Reynolds *** excellent validation of the numerical results is assured through tabular data with the existing literature.

关键词： torsional motion maxwell fluid magnetic field stretchable rotating cylinder bvp4c scheme

Transient flow of magnetized maxwell nanofluid: Buongiorno model perspective of Cattaneo-Christov theory

在线全文

学校读者我要写书评

暂无评论

Applied mathematics and mechanics(English Edition) 2020年第4期41卷 655-666页

作者： m.KHAN A.ahmed J.ahmed Department of mathematics Quaid-i-Azam UniversityIslamabad 44000Pakistan Department of Basic Sciences University of Engineering and TechnologyTaxila 47050Pakistan

The present research article is devoted to studying the characteristics of Cattaneo-Christov heat and mass fluxes in the maxwell nanofluid flow caused by a stretching sheet with the magnetic field *** maxwell nanofluid is investigated with the impact of the Lorentz force to examine the consequence of a magnetic field on the flow characteristics and the transport of *** heat and mass transport mechanisms in the current physical model are analyzed with the modified versions of Fourier’s and Fick’s laws,***,the well-known Buongiorno model for the nanofluids is first introduced together with the Cattaneo-Christov heat and mass fluxes during the transient motion of the maxwell *** governing partial differential equations(PDEs)for the flow and energy transport phenomena are obtained by using the maxwell model and the Cattaneo-Christov theory in addition to the laws of *** transformations are used to convert the PDEs into a system of nonlinear ordinary differential equations(ODEs).The homotopic solution methodology is applied to the nonlinear differential system for an analytic *** results for the time relaxation parameter in the flow,thermal energy,and mass transport equations are discussed *** is noted that higher values of the thermal and solutal relaxation time parameters in the Cattaneo-Christov heat and mass fluxes decline the thermal and concentration fields of the ***,larger values of the thermophoretic force enhance the heat and mass transport in the ***,the Brownian motion of the nanoparticles declines the concentration field and increases the temperature *** validation of the results is assured with the help of numerical tabular data for the surface velocity gradient.

关键词： transient flow Cattaneo-Christov theory maxwell nanofluid Buongiorno model homotopy analysis method (HAm) solution

Thermal analysis in swirl motion of maxwell nanofluid over a rotating circular cylinder

在线全文

学校读者我要写书评

暂无评论

Applied mathematics and mechanics(English Edition) 2020年第9期41卷 1417-1430页

作者： A.ahmed m.KHAN J.ahmed Department of mathematics Quaid-i-Azam UniversityIslamabad 44000Pakistan Department of Basic Sciences University of Engineering and TechnologyTaxila 47050Pakistan

In this paper,the mechanism of thermal energy transport in swirling flow of the maxwell nanofluid induced by a stretchable rotating cylinder is *** rotation of the cylinder is kept constant in order to avoid the induced axially secondary ***,the novel features of heat generation/absorption,thermal radiation,and Joule heating are studied to control the rate of heat *** effects of Brownian and thermophoretic forces exerted by the maxwell nanofluid to the transport of thermal energy are investigated by utilizing an effective model for the nanofluid proposed by *** whole physical problem of fluid flow and thermal energy transport is modelled in the form of partial differential equations(PDEs)and transformed into nonlinear ordinary differential equations(ODEs)with the help of the suitable flow *** acquired results through the technique bvp4c are reported graphically with physical *** analysis reveals that there is higher transport of heat energy in the maxwell nanoliquid for a constant wall temperature(CWT)as compared with the prescribed surface temperature(PST).Both thermophoretic and Brownian forces enhance the thermal energy transport in the flowing maxwell ***,the temperature distribution increases with increasing values of the radiation parameter and the Eckert *** is also noted that an increase in Reynolds number reduces the penetration depth,and as a result the flow and transport of energy occur only near the surface of the cylinder.

关键词： maxwell nanofluid rotating cylinder heat source/sink Joule heating convective condition numerical solution