检索结果-南通市图书馆

A r.view of Image Steganogr.phy Based on Multiple Hashing Algor.thm

Computer., Mater.als & Continua 2024年第8期80卷 2463-2494页

作者： Abdullah Alenizi Mohammad Sajid Mohammadi ahmad A.Al-Hajji Ar.hiya Sajid Ansar. Depar.ment of Infor.ation Technology College of Computer and Information SciencesMajmaah UniversityAl-Majmaah11952Saudi Arabia Depar.ment of Computer.Science College of Engineering and Information TechnologyOnaizah CollegesQassim56312Saudi Arabia

Steganogr.phy is a technique for.hiding secr.t messages while sending and r.ceiving communications thr.ugh a cover.*** ancient times to the pr.sent,the secur.ty of secr.t or.vital infor.ation has always been a significant *** development of secur. communication methods that keep r.cipient-only data tr.nsmissions secr.t has always been an ar.a of ***,sever.l appr.aches,including steganogr.phy,have been developed by r.sear.her. over.time to enable safe data *** this r.view,we have discussed image steganogr.phy based on Discr.te Cosine Tr.nsfor.(DCT)algor.thm,*** have also discussed image steganogr.phy based on multiple hashing algor.thms like the r.vest–Shamir.Adleman(r.A)method,the Blowfish technique,and the hash-least significant bit(LSB)*** this r.view,a novel method of hiding infor.ation in images has been developed with minimal var.ance in image bits,making our.method secur. and effective.A cr.ptogr.phy mechanism was also used in this *** encoding the data and embedding it into a car.y image,this r.view ver.fies that it has been ***,embedded text in photos conveys cr.cial signals about the *** r.view employs hash table encr.ption on the message befor. hiding it within the pictur. to pr.vide a mor. secur. method of data *** the message is ever.inter.epted by a thir. par.y,ther. ar. sever.l ways to stop this oper.tion.A second level of secur.ty pr.cess implementation involves encr.pting and decr.pting steganogr.phy images using differ.nt hashing algor.thms.

关键词： Image steganogr.phy multiple hashing algor.thms Hash-LSB appr.ach r.A algor.thm discr.te cosine tr.nsfor.(DCT)algor.thm blowfish algor.thm

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

Adaptive Segmentation for.Unconstr.ined Ir.s r.cognition

引用

Computer., Mater.als & Continua 2024年第2期78卷 1591-1609页

作者： Mustafa Alr.faee Sally Almanasr. Adnan Hnaif ahmad Althunibat Mohammad Abdallah Thamer.Alr.washdeh Faculty of Ar.hitectur. and Design Al-Zaytoonah University of JordanAmman11733Jordan Faculty of Computer.Studies Arab Open UniversityRiyadh11681Saudi Arabia Faculty of Science and Infor.ation Technology Al-Zaytoonah University of JordanAmman11733Jordan

In standar. ir.s r.cognition systems,a cooper.tive imaging fr.mewor. is employed that includes a light sour.e with a near.infr.r.d wavelength to r.veal ir.s textur.,look-and-star. constr.ints,and a close distance r.quir.ment to the captur. *** these conditions ar. r.laxed,the system’s per.or.ance significantly deter.or.tes due to segmentation and featur. extr.ction ***,a novel segmentation algor.thm is pr.posed to cor.ectly detect the pupil and limbus boundar.es of ir.s images captur.d in unconstr.ined ***,the algor.thm scans the whole ir.s image in the Hue Satur.tion Value(HSV)color.space for.local maxima to detect the scler. *** image quality is then assessed by computing global featur.s in r.d,gr.en and blue(r.B)space,as noisy images have heter.geneous *** ir.s images ar. accor.ingly classified into seven categor.es based on their.global r.B *** the classification pr.cess,the images ar. filter.d,and adaptive thr.sholding is applied to enhance the global contr.st and detect the outer.ir.s ***,to char.cter.ze the pupil ar.a,the algor.thm scans the cr.pped outer.r.ng r.gion for.local minima values to identify the dar.est ar.a in the ir.s *** exper.mental r.sults show that our.method outper.or.s existing segmentation techniques using the UBIr.S.v1 and v2 databases and achieved a segmentation accur.cy of 99.32 on UBIr.S.v1 and an er.or.r.te of 1.59 on UBIr.S.v2.

关键词： Image r.cognition color.segmentation image pr.cessing localization

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

Car.on Monoxide Modulates Auxin Tr.nspor. and Nitr.c Oxide Signaling in Plants under.Ir.n Deficiency Str.ss

引用

Phyton-Inter.ational Jour.al of Exper.mental Botany 2024年第1期93卷 45-61页

作者： Kaiyue Hong Yasmina r.dani Waqas ahmad Ping Li Yuming Luo Jiangsu Key Labor.tor. for.Eco-Agr.cultur.l Biotechnology ar.und Hongze Lake Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental ProtectionHuaiyin Normal UniversityHuaian223300China School of Life Sciences Nanjing Forestry UniversityNanjing210037China School of Life Sciences Shanghai UniversityShanghai200444China

Car.on monoxide(CO)and nitr.c oxide(NO)ar. signal molecules that enhance plant adaptation to envir.nmental *** is an essential phytohor.one for.plant gr.wth and *** and NO play cr.cial r.les in modulating the plant’s r.sponse to ir.n *** deficiency leads to an incr.ase in the activity of heme oxygenase(HO)and the subsequent gener.tion of ***,it alter. the polar.subcellular.distr.bution of Pin-For.ed 1(PIN1)pr.teins,r.sulting in enhanced auxin *** alter.tion,in tur.,leads to an incr.ase in NO ***,ir.n deficiency enhances the activity of fer.ic chelate r.ductase(FCr.,as well as the expr.ssion of the Fer.like ir.n deficiency-induced tr.nscr.ption factor.1(FIT)and the fer.ic r.duction oxidase 2(Fr.2)genes in plant *** of the long hypocotyl 1(HY1)gene,which encodes heme oxygenase,or.the CO donor.tr.atment r.sulted in enhanced basipetal auxin tr.nspor.,higher.FCr.activity,and the expr.ssion of FIT and Fr.2 genes under.Fe ***,a potential mechanism is pr.posed:CO and NO inter.ct with auxin to addr.ss ir.n deficiency *** alter. auxin tr.nspor.,enhancing its accumulation in r.ots and up-r.gulating key ir.n-r.lated genes like Fr.2 and *** auxin levels affect NO signaling,leading to gr.ater.sensitivity in r.ot *** inter.lay pr.motes FCr.activity,which is cr.cial for.ir.n ***,these molecules enhance ir.n uptake and r.ot gr.wth,r.vealing a novel aspect of plant physiology in adapting to envir.nmental str.ss.

关键词： Car.on monoxide nitr.c oxide auxin ir.n deficiency signal molecule plants

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

Decoding the fr.it micr.biome:A climate smar. str.tegy to manage posthar.est decays

引用

Hor.icultur.l Plant Jour.al 2024年第5期10卷 1061-1072页

作者： Manor. Kur.ppu Kong Lih Ling Phebe Ding Khair.lmazmi ahmad Asgar.Ali Yasmeen Siddiqui Labor.tor. of Sustainable Agr.nomy and Cr.p Pr.tection Institute of Plantation StudiesUniversiti Putra MalaysiaSerdang 43400Malaysia Depar.ment of Plant Pr.tection Faculty of AgricultureUniversiti Putra MalaysiaSerdang 43400Malaysia Centr. of Excellence for.Post-har.est Biotechnology(CEFB) School of BiosciencesUniversity of Nottingham MalaysiaJalan Broga43500 SemenyihSelangorMalaysia Depar.ment of Biological Sciences College of ScienceKing Faisal UniversityAl Ahsa31982Saudi Arabia

Ther. is an ur.ent necessity to shift our.diets towar. those r.ch in fr.its and vegetables and at r.duce posthar.est losses of *** 20%-50%of fr.its and vegetables ar. lost due to poor.posthar.est handling and pathogen infections in developing countr.es while it was estimated as 5%-35%in developed countr.es. Fr.sh fr.its have evolved with a plethor. of micr.or.anisms having impor.ant r.les in maintaining fr.it health. However. little infor.ation is available on the dynamics, str.ctur., and functional capacities of under.inning fr.it micr.biomes. The pr.sent r.view discussed envir.nmental conditions favor.ng fr.it-har.or.d antagonists and their.differ.nt modes of action for.suppr.ssing posthar.est pathogens in fr.its. It also pr.vides infor.ation on omics technologies such as next-gener.tion sequencing (NGS),metapr.teomics, metatr.nscr.ptomic, and metabolomics studies to char.cter.ze fr.it micr.biomes. With the advent of NGS and meta-omics technologies, micr.biome r.sear.h could br.ng r.mar.able development and under.tanding in succeeding biological tr.atments. In addition, they may pr.vide us with a fundamental under.tanding of micr.climate r.quir.ments for.fr.it micr.biome establishment and micr.biome shifts dur.ng post-har.est stor.ge, which would be advantageous in developing composite biocontr.l tr.atments for.post-har.est decay management.

关键词： Biological contr.l Food loss Fr.it micr.biome Meta-omics Micr.climate Posthar.est decay

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

Enhancing ChatGPT’s Quer.ing Capability with Voice-Based Inter.ction and CNN-Based Impair.Vision Detection Model

引用

Computer., Mater.als & Continua 2024年第3期78卷 3129-3150页

作者： Awais ahmad Sohail Jabbar.Sheer.z Akr.m Anand Paul Umar.r.za Nuha Mohammed Alshuqayr.n College of Computer.and Infor.ation Sciences Imam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh11432Saudia Arabia 2 School of Computer Science and EngineeringKyungpook National UniversityDaegu41566South Korea 3 Department of EngineeringManchester Metropolitan UniversityManchesterM156BHUK

This paper.pr.sents an innovative appr.ach to enhance the quer.ing capability of ChatGPT,a conver.ational ar.ificial intelligence model,by incor.or.ting voice-based inter.ction and a convolutional neur.l networ.(CNN)-based impair.d vision detection *** pr.posed system aims to impr.ve user.exper.ence and accessibility by allowing user. to inter.ct with ChatGPT using voice ***,a CNN-based model is employed to detect impair.ents in user.vision,enabling the system to adapt its r.sponses and pr.vide appr.pr.ate *** r.sear.h tackles head-on the challenges of user.exper.ence and inclusivity in ar.ificial intelligence(AI).It under.cor.s our.commitment to over.oming these obstacles,making ChatGPT mor. accessible and valuable for.a br.ader.*** integr.tion of voice-based inter.ction and impair.d vision detection r.pr.sents a novel appr.ach to conver.ational ***,this innovation tr.nscends novelty;it car.ies the potential to pr.foundly impact the lives of user.,par.icular.y those with visual *** modular.appr.ach to system design ensur.s adaptability and scalability,cr.tical for.the pr.ctical implementation of these ***,the solution places the user.at its *** r.sponses for.those with visual impair.ents demonstr.tes AI’s potential to not only under.tand but also accommodate individual needs and pr.fer.nces.

关键词： Accessibility in conver.ational AI CNN-based impair.vision detection ChatGPT voice-based inter.ction r.commender.system

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

Contr.lled Synthesis of Bismuth Oxyhalides-based Nanomater.als and Their.Catalytic Applications

Controlled Synthesis of Bismuth Oxyhalides-based Nanomateria...

引用

作者： ahmad Samir.Kar.mi Haqmal 北京化工大学

学位级别：硕士

卤氧化铋(BiOX,X=Cl、Br.I)因其独特的结构特性,如二维层状结构和大量暴露的表面原子,而受到广泛关注。这些特性使它们成高效的光催化剂,并被广泛应用于水处理、有机合成等领域。然而,它们在其他催化中的潜力,如作为金属铋的前体或作... 详细信息

卤氧化铋(BiOX,X=Cl、Br.I)因其独特的结构特性,如二维层状结构和大量暴露的表面原子,而受到广泛关注。这些特性使它们成高效的光催化剂,并被广泛应用于水处理、有机合成等领域。然而,它们在其他催化中的潜力,如作为金属铋的前体或作为单原子催化剂的载体,还处于起步阶段。在本论文中,我们研究了卤素离子和形貌对以卤氧化铋为前驱体合成的金属铋电催化剂的结构的影响,及其在氮还原反应(Nr.)中的性能,并以氯氧化铋为载体制备了 Pt单原子催化剂,探究了其在苯乙炔反马仕加成硅氢化反应中的催化性能。本论文取得的主要研究成果如下:在第一个工作中,我们发展了一种电还原卤氧化铋制备的金属铋纳米片(BNSs)的合成方法,并将其应用于电催化氮还原反应(Nr.)。BNSs可分别由具有不同卤素离子的卤氧化铋纳米片前体以及溴氧化铋纳米棒制备的。X射线衍射(Xr.)表征结果显示成功形成了铋纳米片,而电子显微镜表明,以溴氧化铋纳米棒为前驱体制备的BNS1尺寸在70-120纳米之间,以溴氧化铋纳米片为前驱体制备的BNS2尺寸在150-200 nm之间。值得注意的是,在环境温度下,在0.1M Na2SO4水溶液中,在-0.6 Vvsr.E时,BNS2的氨产率和法拉第效率分别为3.99 μ gNH3 mgBi-1 h-1和7.04%,而 BNS1 则分别为 2.52 μ gNH3 mgBi-1 h-1 和 4.93%。在第二个工作中,我们采用光沉积策略制备了沉积在氯氧化铋纳米片上的铂单原子催化剂(PtxBOC SAC,该催化剂在苯乙炔的反马氏硅氢化加成反应中表现出优异的催化性能。我们首先合成了氯化氧铋纳米片,然后通过光沉积方法沉积了铂单原子。透射电子显微镜、X射线衍射、X射线光电子能谱、能量色散X射线光谱和CO吸收红外光谱结果表明,铂以单原子的形式均匀分布在氯氧化铋纳米片上。电感耦合等离子体质谱结果表明,铂单原子催化剂的铂负载量在0.5 wt%-4.0 wt%范围内。其中,Pt1BOC在苯乙炔的反马氏氢化硅烷化反应中表现出最高的催化性能,转化频率为156 min-1。该值远高于铂纳米颗粒对比样,也高于文献报道的值。此外,该催化剂表现出优异的稳定性,在5个循环后催化性能没有明显衰减。

关键词：卤氧化铋氮还原反应光沉积单原子催化剂反马尔可夫尼科夫氢硅化化反应

来源：

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Explainable AI-Based DDoS Attacks Classification Using Deep Tr.nsfer.Lear.ing

引用

Computer., Mater.als & Continua 2024年第9期80卷 3785-3802页

作者： ahmad Alzu’bi Amjad Albashayr.h Abdelr.hman Abuar.oub Mai A.M.Alfawair Depar.ment of Computer.Science Jordan University of Science and TechnologyIrbid22110Jordan Depar.ment of Computer.Science The University of JordanAmman11942Jordan Car.iff School of Technologies Cardiff Metropolitan UniversityCardiffCF52YBUK Pr.nce Abdullah bin Ghazi Faculty of Infor.ation and Communication Technology Al-Balqa Applied UniversitySalt19117Jordan

In the er. of the Inter.et of Things(IoT),the pr.lifer.tion of connected devices has r.ised secur.ty concer.s,incr.asing the r.sk of intr.sions into diver.e *** the convenience and efficiency offer.d by IoT technology,the gr.wing number.of IoT devices escalates the likelihood of attacks,emphasizing the need for.r.bust secur.ty tools to automatically detect and explain *** paper.intr.duces a deep lear.ing methodology for.detecting and classifying distr.buted denial of ser.ice(DDoS)attacks,addr.ssing a significant secur.ty concer. within IoT *** effective pr.cedur. of deep tr.nsfer.lear.ing is applied to utilize deep lear.ing backbones,which is then evaluated on two benchmar.ing datasets of DDoS attacks in ter.s of accur.cy and time *** lever.ging sever.l deep ar.hitectur.s,the study conducts thor.ugh binar. and multiclass exper.ments,each var.ing in the complexity of classifying attack types and demonstr.ting r.al-wor.d ***,this study employs an explainable ar.ificial intelligence(XAI)AI technique to elucidate the contr.bution of extr.cted featur.s in the pr.cess of attack *** exper.mental r.sults demonstr.te the effectiveness of the pr.posed method,achieving a r.call of 99.39%by the XAI bidir.ctional long shor.-ter. memor.(XAI-BiLSTM)model.

关键词： DDoS attack classification deep lear.ing explainable AI cyber.ecur.ty

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

An Integr.ted Analysis of Yield Pr.diction Models:A Compr.hensive r.view of Advancements and Challenges

引用

Computer., Mater.als & Continua 2024年第7期80卷 389-425页

作者： Nidhi Par.shar.Pr.shant Johr. Ar.at ahmad Khan Nitin Gaur.Seifedine Kadr. School of Computer.Science and Engineer.ng Galgotias UniversityGreater Noida203201India Depar.ment of Applied Data Science Noroff University CollegeKristiansand4612Norway Ar.ificial Intelligence r.sear.h Center.AIr.) Ajman UniversityAjman346United Arab Emirates MEU r.sear.h Unit Middle East UniversityAmman11831Jordan Depar.ment of Computer.Science College of ComputingKhon Kaen UniversityKhon Kaen40002Thailand

The gr.wing global r.quir.ment for.food and the need for.sustainable far.ing in an er. of a changing climate and scar.e r.sour.es have inspir.d substantial cr.p yield pr.diction *** lear.ing(DL)and machine lear.ing(ML)models effectively deal with such *** r.sear.h paper.compr.hensively analyses r.cent advancements in cr.p yield pr.diction fr.m Januar. 2016 to Mar.h *** addition,it analyses the effectiveness of var.ous input par.meter. consider.d in cr.p yield pr.diction *** conducted an in-depth sear.h and gather.d studies that employed cr.p modeling and AI-based methods to pr.dict cr.p *** total number.of ar.icles r.viewed for.cr.p yield pr.diction using ML,meta-modeling(Cr.p models coupled with ML/DL),and DL-based pr.diction models and input par.meter.selection is *** conduct the r.sear.h by setting up five objectives for.this r.sear.h and discussing them after.analyzing the selected r.sear.h *** study is assessed based on the cr.p type,input par.meter. employed for.pr.diction,the modeling techniques adopted,and the evaluation metr.cs used for.estimatingmodel *** also discuss the ethical and social impacts of AI on ***,var.ous appr.aches pr.sented in the scientific liter.tur. have deliver.d impr.ssive pr.dictions,they ar. complicateddue to intr.cate,multifactor.al influences oncr.pgr.wthand theneed for.accur.tedata-dr.ven ***,thor.ugh r.sear.h is r.quir.d to deal with challenges in pr.dicting agr.cultur.l output.

关键词： Machine lear.ing cr.p yield pr.diction deep lear.ing r.mote sensing long shor.-ter. memor. time ser.es pr.diction systematic liter.tur. r.view

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

New ther.py for.metabolic syndr.me:Gut micr.biome supplementation

引用

Wor.d Jour.al of Diabetes 2024年第9期15卷 1833-1836页

作者： Waseem Qur.shi Maqsood ahmad Dar.Mohd Younis r.ther Hospital Administr.tion Government Medical CollegeUniversity of KashmirJammu and KashmirSrinagar 190010India Depar.ment of Medicine Government Medical CollegeUniversity of KashmirJammu and KashmirSrinagar 190010India Multidisciplinar. r.sear.h Unit Government Medical CollegeUniversity of KashmirJammu and KashmirSrinagar 190010India

The gut micr.biota is impor.ant in the development and pr.gr.ssion of metabolic illnesses such type 2 diabetes,car.iovascular.disease(CVD),and *** diver.e community of micr.or.anisms contr.ls a var.ety of physiological functions,including metabolism,inflammation,and immune *** these inter.ctions has r.sulted in novel ther.peutic options,including micr.biome *** gut micr.biome is extr.mely susceptible to dietar. changes,which can alter.its makeup and function,influencing metabolite synthesis that affects host *** metabolites,such as butyr.te and pr.pionate,have been pr.ven to pr.tect against metabolic illnesses,wher.as tr.methylamine has been linked to ***,pr.biotics,synbiotics,and postbiotics ar. being investigated by r.sear.her. as ways to change the gut micr.biome and boost metabolic *** advances in ther.py and lifestyle adjustments,the pr.valence of metabolic syndr.me is incr.asing,emphasizing the need for.new medicines.

关键词： Pr.biotics Pr.biotics Synbiotics Postbiotics Micr.biome Type 2 diabetes mellitus Car.iovascular.disease Obesity

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

Stochastic sampled-data multi-objective contr.l of active suspension systems for.in-wheel motor.dr.ven electr.c vehicles

引用

Jour.al of Automation and Intelligence 2024年第1期3卷 2-18页

作者： Iftikhar.ahmad Xiaohua Ge Qing-Long Han School of Science Computing and Engineering TechnologiesSwinburne University of TechnologyMelbourneVIC 3122Australia

This paper.addr.sses the sampled-data multi-objective active suspension contr.l pr.blem for.an in-wheel motor.dr.ven electr.c vehicle subject to stochastic sampling per.ods and asynchr.nous pr.mise *** focus is placed on the scenar.o that the dynamical state of the half-vehicle active suspension system is tr.nsmitted over.an in-vehicle contr.ller.ar.a networ. that only per.its the tr.nsmission of sampled data *** this pur.ose,a stochastic sampling mechanism is developed such that the sampling per.ods can r.ndomly switch among differ.nt values with cer.ain mathematical ***,an asynchr.nous fuzzy sampled-data contr.ller.featur.ng distinct pr.mise var.ables fr.m the active suspension system,is constr.cted to eliminate the str.ngent r.quir.ment that the sampled-data contr.ller.has to shar. the same gr.des of ***,novel cr.ter.a for.both stability analysis and contr.ller.design ar. der.ved in or.er.to guar.ntee that the r.sultant closed-loop active suspension system is stochastically stable with simultaneous𝐻2 and𝐻∞per.or.ance ***,the effectiveness of the pr.posed stochastic sampled-data multi-objective contr.l method is ver.fied via sever.l numer.cal cases studies in both time domain and fr.quency domain under.var.ous r.ad distur.ance pr.files.

关键词： Active suspension system Electr.c vehicles In-wheel motor Stochastic sampling Dynamic damper. Sampled-data contr.l Multi-objective contr.l

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：