检索结果-南通市图书馆

Biological silicon nanoparticles improve Phaseolus vulgaris L. yield and minimize its contaminant contents on a heavy metals-contaminated saline soil

引用

Journal of Environmental Sciences 2021年第8期33卷 1-14页

作者： mohamed T.El-saadony El-Sayed m.Desoky ahmed m.saad Rania S.m.Eid Eman Selem ahmed S.Elrys Department of Agricultural microbiology Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Botany Department Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Biochemistry Department Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Agricultural Botany Department Faculty of AgricultureBenha University13736Egypt Botany and microbiology Department Faculty of ScienceZagazig University44511Egypt Soil Science Department Faculty of AgricultureZagazig University44511ZagazigEgypt

The synthesis of biological silicon nano-particles(Bio-Si-NPs)is an eco-friendly and lowcost *** is no study focusing on the effect of Bio-Si-NPs on the plants grown on saline soil contaminated with heavy *** this study,an attempt was made to synthesis Bio-Si-NPs using potassium silica florid substrate,and the identified Aspergillus tubingensis Am11 isolate that separated from distribution systems of the potable water.A twoyear field trial was conducted to compare the protective effects of Bio-Si-NPs(2.5 and 5.0 mmol/L)and potassium silicate(10 mmol/L)as a foliar spray on the antioxidant defense system,physio-biochemical components,and the contaminants contents of Phaseolus vulgaris *** on saline soil contaminated with heavy *** findings showed that all treatments of Bio-Si-NPs and potassium silicate significantly improved plant growth and production,chlorophylls,carotenoids,transpiration rate,net photosynthetic rate,stomatal conductance,membrane stability index,relative water content,free proline,total soluble sugars,N,P,K,Ca2+,K+/Na+,and the activities of peroxidase,catalase,ascorbic peroxidase and superoxide oxide *** of Bio-Si-NPs and potassium silicate significantly decreased electrolyte leakage,malondialdehyde,H2 O2,O2·-,Na+,Pb,Cd,and Ni in leaves and pods of Phaseolus vulgaris *** to ***-Si-NPs were more effective compared to potassium *** of Bio-Si-NPs at the rate of 5 mmol/L was the recommended treatment to enhance the performance and reduce heavy metals content on plants grown on contaminated saline soils.

关键词： Bean Silicon Nano-silicon Aspergillus tubingensis Am11 Salinity Heavy metals

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Pre-Breeding Genetic Diversity Assessment of Tomato(Solanum lycopersicum L.)Cultivars Based on molecular,morphological and Physicochemical Parameters

引用

Phyton-International Journal of Experimental Botany 2023年第5期92卷 1493-1512页

作者： Jameel m.Al-Khayri Salha m.Alshamrani Adel A.Rezk Wael F.Shehata mustafa I.Almaghasla Tarek A.Shalaby ahmed m.saad Fatmah A.Safhi muhammad N.Sattar Arafat A.Abdel Latef mahmoud Z.Sitohy Abdallah A.Hassanin Department of Agricultural Biotechnology College of Agriculture and Food SciencesKing Faisal UniversityAl-Ahsa31982Saudi Arabia Department of Biology College of ScienceUniversity of JeddahJeddah21959Saudi Arabia Plant Pests and Diseases UnitDepartment of Arid Land AgricultureCollege of Agriculture and Food SciencesKing Faisal UniversityAl-Ahsa31982Saudi Arabia Department of Horticulture Faculty of AgricultureKafrelsheikh UniversityKafr El-Sheikh33516Egypt Department of Biochemistry Faculty of AgricultureZagazig UniversityZagazig44511Egypt Department of Biology College of SciencePrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Central Laboratories King Faisal UniversityAl-Ahsa31982Saudi Arabia Department of Botany and microbiology Faculty of ScienceSouth Valley UniversityQena83523Egypt Department of Genetics Faculty of AgricultureZagazig UniversityZagazig44511Egypt

Appropriate knowledge of the parental cultivars is a pre-requisite for a successful breeding *** study characterized fruit yield,quality attributes,and molecular variations of ten tomato cultivars during three consecutive generations under greenhouse *** 86,Castle Rock,and Red Star cultivars showed the highest fruit yield(kg/plant),total phenolic compounds(TPC),and sap *** component analysis categorized the evaluated fruit yield into three groups based on their quality attributes.A robust positive correlation appeared among traits inside each group.A positive correlation was likewise noticed between the first and the second ***,a negative correlation was detected between the first,the second and the third *** profiling,using seven inter-simple sequence repeat(ISSR)primers,produced 60 loci,including 49 polymorphic *** molecular analysis also pinpointed the highest genetic similarity(0.92)between P73 and moneymaker,while the lowest genetic similarity(0.46)was observed between Castle Rock and *** cultivars P73 and moneymaker showed the lowest genetic distance(2.24),while the highest genetic distance(5.92)was observed between Super marmand and Peto86,on the one hand,and between Castle Rock and moneymaker,on the other *** chemical analysis of fruit sap indicated the highest levels of TPC,total flavonoids,anthocyanin,ascorbic acid and total soluble solids in Peto 86 and Castle Rock *** analysis of tomato cultivars based on morphological and molecular attributes indicated four distinct *** 86,Castle Rock,and Red star cultivars can be recommended for the tomato hybridization breeding programs in the future,with other tomato cultivars as potentially high-yielding parents.

关键词： Fruit quality fruit yield genetic diversity hybrid seeds molecular markers plant breeding tomato

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

On a new modified fractional analysis of Nagumo equation

引用

International Journal of Biomathematics 2019年第3期12卷 191-205页

作者： Khaled m.saad Sinan Deniz Dumitru Baleanu Department of mathematics College of Science and Arts Najran University P.O. Box 1988 Najran Saudi Arabia Department of Mathematics Faculty of Applied Science Taiz University P.O. Box 6169 Taiz Yemen Department of mathematics Faculty of Art and Sciences Manisa Celal Bayar University 45140 Manisa Turkey Department of mathematics Faculty of Sciences Cankaya University 06530 Ankara Turkey Institute of Space Sciences Magurele-Bucharest Romania

In this work, a new modified fractional form of the Nagumo equation has been presented and deeply analyzed. Using the Caputo–Fabrizio and Atangana–Baleanu time-fractional derivatives, classical Nagumo model is transformed to a new fractional version. The modified equation has been solved by using the homotopy analysis transform method. The convergence analysis has been also examined with the help of the so-called hh-curves and average residual error. Comparing the obtained approximate solution with the exact solution leaves no doubt believing that the proposed technique is very efficient and converges toward the exact solution very rapidly.

关键词： Nagumo equation nonlinear diffusion and convection homotopy analysis transform method Caputo-Fabrizio-Caputo derivative Atangana-Baleanu-Caputo time-fractional derivatives

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Comparative assessment of maximum power point tracking procedures for photovoltaic systems

引用

Green Energy & Environment 2017年第1期2卷 5-17页

作者： mohammed Aslam Husain Abu Tariq Salman Hameed m.saad Bin Arif Abhinandan Jain Department of Electrical Engineering Aligarh Muslim University Department of Electronics Engineering Aligarh Muslim University

The fast growing demands and increasing awareness for the environment, PV systems are being rapidly installed for numerous ***, one of the important challenges in utilizing a PV source is the maximum power harnessing using various maximum power point tracking techniques available. With the large number of mPPT techniques, each having some merits and demerits, confusion is always there for their proper selection. Discussion on various proposed procedures for maximum power point tracking of photovoltaic array has been done. Based on different parameters analysis of mPPT techniques is carried out. This assessment will serve as a suitable reference for selection, understanding different ways and means of mPPT.

关键词： maximum power point tracking(mPPT) Photovoltaic(PV) Solar Perturb and observe Optimization

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

New Ulva lactuca Algae Based Chitosan Bio-composites for Bioremediation of Cd(II)Ions

引用

Journal of Bioresources and Bioproducts 2021年第3期6卷 223-242页

作者： Eman m.saad Reda F.Elshaarawy Safaa A.mahmoud Khalid m.El-moselhy Department of Chemistry Faculty of ScienceSuez UniversitySuezEgypt National Institute of Oceanography and Fisheries NIOFEgypt

The current article covers the production of chitosan(CS)from shells of shrimp waste and its utilization in the preparation of eco-friendly imprinting and non-imprinting composites with Ulva lactuca algae(Alg).These bio-composites namely(Imp-Alg-25wt%CS)and(NImp-Alg-25wt%CS)were used for removal of Cd(II)*** transform infrared(FT-IR)spectra,scanning electron microscope(SEm)equipped with electron dispersive X-ray(EDX),X-ray diffraction(XRD),and elemental analysis measurements were performed to characterize these bio-composites *** highest adsorption of these sorbents towards Cd(II)ions was determined as a function of solutions pH,contact time,Cd(II)ion concentration,beads dose,and *** equilibrium experimental data were treated using various mathematical isotherm and kinetic models to approve the maximum bio-sorption capacities of NImp-Alg-25wt%CS and Imp-Alg-25wt%CS(in mg/g).The results exhibited that Imp-Alg-25wt%CS gave higher removal capacity than NImp-Alg-25wt%CS at the same optimum ***-2nd order dynamic and Langmuir isotherm models were well described in these biosorption ***,the removal behavior of Cd(II)using both bio-composites was spontaneous at room *** reusability of the sorbents,NImp-Alg-25wt%CS and Imp-Alg-25wt%CS,showed three *** addition,comparative study was also conducted for Cd(II)removal onto some reported sorbents.

关键词： Cadmium Bio-sorbent Chitosan Algae Bio-composites

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Oral administration of moringa oleifera leaf powder relieves oxidative stress,modulates mucosal immune response and cecal microbiota after exposure to heat stress in New Zealand White rabbits

引用

Journal of Animal Science and Biotechnology 2021年第4期12卷 1468-1482页

作者： Talat Bilal Yasoob Defu Yu Abdur Rauf Khalid Zhen Zhang Xiaofeng Zhu Heba m.saad Suqin Hang National Center for International Research on Animal Gut Nutrition Nanjing Agricultural UniversityNo.1 WeiGangXuanwu regionNanjing 210095JiangsuChina Laboratory of Gastrointestinal microbiology College of Animal Science and TechnologyNanjing Agricultural UniversityNanjing 210095China Faculty of Agricultural Sciences Ghazi UniversityDera Ghazi Khan 32200Pakistan Department of Livestock and Poultry Production Faculty of Veterinary SciencesBahauddin Zakariya UniversityMultan 60000Pakistan

Background:Heat stress(HS)disrupts the gut barrier allowing the uptake of lipopolysaccharide(LPS)and leads to an inflammatory response and changes in gut microbiota *** oleifera leaf powder(mOLP)has been proposed to combat HS,yet its alleviate role is currently under *** current study investigated the effects of chronic HS and mOLP supplementation on changes in redox status and immune response of cecal mucosa along with alteration in cecal ***:A total of 21 young New Zealand White(NZW)rabbits(male)about 32 weeks old(mean body weight of 3318±171 g)reared on a commercial pelleted diet were employed;divided into three groups(n=7):control(CON,25°C),heat stress(HS,35°C for 7 h daily),and HS supplemented orally with mOLP(HSm,35°C)at 200 mg/kg body weight per day for 4 ***:The results demonstrated that mOLP supplementation increased organ index of cecal tissue compared with the HS group(P>0.05).Levels of malonaldehyde(mDA)and activity of superoxide dismutase(SOD)as well as lactate dehydrogenase(LDH)were reduced in the cecal mucosa of the HSm group compared with the HS *** downregulated the contents of cecal mucosa LPS,several inflammatory markers(TNF-α/IL-1α/IL-1β),and myeloperoxidase(mPO)in the HSm group(Pmmunoglobulin A(SIgA)was increased in the HSm group compared with the HS group(Pme of cecal mucosa showed that mOLP reduced gene expression relative to several immune factors,including IL-10,IFNG,and RLA,whereas both HS and mOLP increased the gene expression of fat digestion and absorption pathway,including APOA1,FABP1,FABP2,mTTP,andLOC100344166,compared to the CON group(Pm level,the relative abundance of Proteobacteria was increased by HS,while Actinobacteria was significantly increased by HSm compared to other groups(Pm groups compared to CON and HS groups(P<0.05).Higher butyrate conce

关键词： Cecal microbiota Heat stress moringa oleifera leaf powder Rabbits Short chain fatty acids

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Improving the Transmission Security of Vein Images Using a Bezier Curve and Long Short-Term memory

引用

Computers, materials & Continua 2024年第6期79卷 4825-4844页

作者： ahmed H.Alhadethi Ikram Smaoui ahmed Fakhfakh saad m.Darwish Computer Science and School of Electronics and Telecommunications University of SfaxSfax3029Tunisia LETI Laboratory University of SfaxSfax3029Tunisia Digital Research Center of Sfax Technopark of SfaxSfax3029Tunisia Department of Information Technology Institute of Graduate Studies and ResearchAlexandria UniversityAlexandriaEgypt

The act of transmitting photos via the Internet has become a routine and significant *** the security measures to safeguard these images from counterfeiting and modifications is a critical domain that can still be further *** study presents a system that employs a range of approaches and algorithms to ensure the security of transmitted venous *** main goal of this work is to create a very effective system for compressing individual biometrics in order to improve the overall accuracy and security of digital photographs by means of image *** paper introduces a content-based image authentication mechanism that is suitable for usage across an untrusted network and resistant to data loss during *** employing scale attributes and a key-dependent parametric Long Short-Term memory(LSTm),it is feasible to improve the resilience of digital signatures against image deterioration and strengthen their security against malicious ***,the successful implementation of transmitting biometric data in a compressed format over a wireless network has been *** applications involving the transmission and sharing of images across a *** suggested technique utilizes the scalability of a structural digital signature to attain a satisfactory equilibrium between security and picture *** effective adaptive compression strategy was created to lengthen the overall lifetime of the network by sharing the processing of *** scheme ensures a large reduction in computational and energy requirements while minimizing image quality *** approach employs multi-scale characteristics to improve the resistance of signatures against image *** proposed system attained a Gaussian noise value of 98%and a rotation accuracy surpassing 99%.

关键词： Image transmission image compression text hiding Bezier curve Histogram of Oriented Gradients(HOG) LSTm image enhancement Gaussian noise rotation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Review on Primary and Secondary Controls of Inverter-interfaced microgrid

引用

Journal of modern Power Systems and Clean Energy 2021年第5期9卷 969-985页

作者： Kafeel ahmed mehdi Seyedmahmoudian saad mekhilef N.m.mubarak Alex Stojcevski School of Software and Electrical Engineering Swinburne University of TechnologyVIC 3122VictoriaAustralia Power Electronics and Renewable Energy Research Laboratory Department of Electrical EngineeringUniversity of Malaya50603 Kuala LumpurMalaysia Department of Chemical Engineering Faculty of Engineering and ScienceCurtin University of Technology98009 SarawakMalaysia

The demand of electricity and environmental issues associated with conventional power generation plants are increasing *** technology has transformed the conventional power system through the integration of distributed generation(DG).With the help of modern power electronic technology,the conventional power system is able to support the integration of DGs based on renewable energy sources(RESs).The systematic combination of DGs with energy storage system forms a microgrid(mG),which can operate in islanded mode or grid-connected *** intermittent nature of RES and varying load pose substantial obstacles such as voltage and frequency instability,and the unreliability of *** feeder impedances and non-linear loads are considered as present challenges in mG *** control has been useful in undertaking solutions to these *** paper covers the deep insight of different control methods applied at the primary and secondary control levels in hierarchical *** primary control,the classification based on droop and non-droop controls is *** virtual synchronization machine(VSm)based control method is *** and frequency restoration control and economical operations at decentralized and centralized secondary control are analyzed in *** on the existing literature,critical discussion on mG control and future trends are also presented to provide future research perspectives.

关键词： Distributed generation(DG) hierarchical control droop control non-droop control inverter

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

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

引用

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

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Classification COVID-19 Based on Enhancement X-Ray Images and Low Complexity model

引用

Computers, materials & Continua 2022年第7期72卷 561-576页

作者： Aymen saad Israa SKamil ahmed Alsayat ahmed Elaraby Department of Information Technology Technical College of ManagementKufaAl Furat Alawsat UniversityIraq Department of medical Laboratory Techniques Al-Mustaqbal University CollegeHillaIraq Department of Computer Science College of Computer and Information SciencesJouf UniversitySaudi Arabia Department of Computer Science Faculty of Computers and InformationSouth Valley UniversityQenaEgypt

COVID-19 has been considered one of the recent epidemics that occurred at the last of 2019 and the beginning of 2020 that world *** spread of COVID-19 requires a fast technique for diagnosis to make the appropriate decision for the treatment.X-ray images are one of the most classifiable images that are used widely in diagnosing patients’data depending on radiographs due to their structures and tissues that could be *** Neural Networks(CNN)is the most accurate classification technique used to diagnose COVID-19 because of the ability to use a different number of convolutional layers and its high classification *** using CNNs techniques requires a large number of images to learn and obtain satisfactory *** this paper,we used SqueezNet with a modified output layer to classify X-ray images into three groups:COVID-19,normal,and *** this study,we propose a deep learning method with enhance the features of X-ray images collected from Kaggle,Figshare to distinguish between COVID-19,Normal,and Pneumonia *** this regard,several techniques were used on the selected image samples which are Unsharp filter,Histogram equal,and Complement image to produce another view of the *** Squeeze Net CNN model has been tested in two scenarios using the 13,437 X-ray images that include 4479 for each type(COVID-19,Normal and Pneumonia).In the first scenario,the model has been tested without any enhancement on the *** achieved an accuracy of 91%.But,in the second scenario,the model was tested using the same previous images after being improved by several techniques and the performance was high at approximately 95%.The conclusion of this study is the used model gives higher accuracy results for enhanced images compared with the accuracy results for the original images.A comparison of the outcomes demonstrated the effectiveness of ourDLmethod for classifying COVID-19 based on enhanced X-ray images.

关键词： COVID-19 X-ray image enhancement classification CNN SqueezNet model

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：