检索结果-南通市图书馆

Use of subword tokenization for domain generation algorithm classification

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Cybersecurity 2024年第2期7卷 1-12页

作者： Sea Ran Cleon Liew Ngai fong Law University of Waterloo WaterlooCanada department of Electrical and Electronic Engineering The Hong Kong Polytechnic UniversityKowloonHong Kong

domain name generation algorithm(dGA)classification is an essential but challenging *** feature-extract-ing machine learning(ML)methods and deep learning(dL)models such as convolutional neural networks and long short-term memory have been ***,the performance of these approaches varies with different types of *** features in the ML methods can characterize random-looking dGAs better than Word-looking *** improve the classification performance on word-looking dGAs,subword tokenization is employed for the dL *** experimental results proved that the subword tokenization can provide excellent classification performance on the word-looking *** then propose an integrated scheme that chooses an appropriate method for dGA classification depending on the nature of the *** show that the integrated scheme outperformed existing ML and dL methods,and also the subword dL methods.

关键词： Botnet detection domain names Network security Machine learning-based botnet detection

A plant growth chamber system equipped with aerosol generators for studying aerosol-vegetation interactions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Particuology 2024年第2期85卷 122-132页

作者： Masao Gen Seiji Ikawa Masahiro Yamaguchi fong Zyin Lim Takeshi Izuta I.Wuled Lenggoro Graduate School of Bio-Applications and Systems Engineering Tokyo University of Agriculture and TechnologyKoganeiTokyo184-8588Japan Institute of Multidisciplinary Research for Advanced Materials Tohoku UniversitySendai980-8577Japan Faculty of Agriculture Tokyo University of Agriculture and TechnologyFuchuTokyo183-8509Japan Graduate School of Fisheries and Environmental Sciences Nagasaki UniversityNagasaki852-8521Japan Institute of Agriculture Tokyo University of Agriculture and TechnologyFuchuTokyo183-8509 Japan department of Applied Physics and Chemical Engineering Tokyo University of Agriculture and TechnologyKoganeiTokyo184-8588Japan Institute of Global Innovation Research Tokyo University of Agriculture and TechnologyFuchuTokyo183-8509Japan

Understanding aerosol-vegetation interactions is vital in ***,the interactions remain elusive partly due to the lack of suitable plant growth chamber ***,deposition of submicron particles on leaf surfaces is challenging due to its low deposition velocities compared to larger *** this work,we present a plant-growth chamber that was used to study the effect of sub-micron black carbon(BC)particles on the growth and photosynthesis of *** chamber system simultaneously enables the growth of multiple plants in pots and the deposition of submicron particles onto *** spraying methods assisted by ultrasonic and electrostatic forces were employed as aerosol generators to realize the particle *** flow regime inside the chamber was numeri-cally calculated to predict the transportation of aerosol particles,suggesting the optimal operating conditions of the *** gas-phase particle size distribution measurements showed that gener-ated BC particles were suspended in submicron diameter *** aerosol generators were examined in the chamber using three conductor and insulator substrates as a model of plant *** observations and spectroscopic analysis ascertained that submicron BC particles generated from our generators were deposited on all substrate *** the developed chamber system,systematic studies can be performed to advance the fundamental understanding of aerosol-vegetation interactions.

关键词： Aerosol Exposure chamber Spray drying Black carbon

Unknown ddoS Attack detection with Fuzzy C-Means Clustering and Spatial Location Constraint Prototype Loss

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第2期78卷 2181-2205页

作者： Thanh-Lam Nguyen HaoKao Thanh-Tuan Nguyen Mong-fong Horng Chin-Shiuh Shieh department of Electronic Engineering National Kaohsiung University of Science and TechnologyKaohsiung807618Taiwan department of Electronic and Automation Engineering Nha Trang UniversityNha Trang650000Vietnam

Since its inception,the Internet has been rapidly *** the advancement of science and technology and the explosive growth of the population,the demand for the Internet has been on the *** applications in education,healthcare,entertainment,science,and more are being increasingly deployed based on the ***,malicious threats on the internet are on the rise as *** denial of Service(ddoS)attacks are among the most common and dangerous threats on the internet *** scale and complexity of ddoS attacks are constantly *** detection Systems(IdS)have been deployed and have demonstrated their effectiveness in defense against those *** addition,the research of Machine Learning(ML)and deep Learning(dL)in IdS has gained effective results and significant ***,one of the challenges when applying ML and dL techniques in intrusion detection is the identification of unknown *** attacks,which are not encountered during the system’s training,can lead to misclassification with significant *** this research,we focused on addressing the issue of Unknown Attack detection,combining two methods:Spatial Location Constraint Prototype Loss(SLCPL)and Fuzzy C-Means(FCM).With the proposed method,we achieved promising results compared to traditional *** proposed method demonstrates a very high accuracy of up to 99.8%with a low false positive rate for known attacks on the Intrusion detection Evaluation dataset(CICIdS2017)***,the accuracy is also very high,reaching 99.7%,and the precision goes up to 99.9%for unknown ddoS attacks on the ddoS Evaluation dataset(CICddoS2019)*** success of the proposed method is due to the combination of SLCPL,an advanced Open-Set Recognition(OSR)technique,and FCM,a traditional yet highly applicable clustering *** has yielded a novel method in the field of unknown attack *** further expands the trend of applying dL and M

关键词： Cybersecurity ddoS unknown attack detection machine learning deep learning incremental learning convolutional neural networks(CNN) open-set recognition(OSR) spatial location constraint prototype loss fuzzy c-means CICIdS2017 CICddoS2019

Advanced nanofabrication for elastic inorganic aerogels

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2024年第10期17卷 8842-8862页

作者： Xiaota Cheng Xinyi Chang Fan Wu Yalong Liao Kai Pan Hao fong Jianyong Yu Yi-Tao Liu Bin ding Innovation Center for Textile Science and Technology College of TextilesDonghua UniversityShanghai 201620China Aerospace Institute of Advanced Material and Processing Technology Beijing 100074China College of Materials Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China

Inorganic aerogels with low density,high porosity,large specific surface area,and superior mechanical properties are excellent candidate materials in fields such as thermal management,energy,catalysis,and biomedical applications.A comprehensive overview of existing elastic inorganic aerogels is provided,covering their structural units,preparation methods,mechanical performances,and ***,based on the constituent building blocks and microstructures,a detailed analysis of the mechanical properties and guidelines for elastic design of aerogels is *** with a succinct summary of prospective developmental direction,this review deliberates on the challenges and potential opportunities of elastic inorganic aerogels,with the intent of providing a versatile platform for designing new types of elastic inorganic aerogels for various applications.

关键词： inorganic aerogels compressive stretchable fabrication mechanical performances applications

Methodological considerations of priming repetitive transcranial magnetic stimulation protocols in clinical populations

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

General Psychiatry 2024年第1期37卷 173-176页

作者： Jack Jiaqi Zhang Zhongfei Bai Kenneth N K fong department of Rehabilitation Sciences The Hong Kong Polytechnic UniversityHong KongChina Shanghai YangZhi Rehabilitation Hospital(Shanghai Sunshine Rehabilitation Centre) School of MedicineTongji UniversityShanghaiChina

INTROdUCTION Repetitive transcranial magnetic stimulation(rTMS)is a neuroplasticity-enhancing technique that modifies brain responsiveness to various therapeutic modalities in clinical psychiatric and neurological applications. Furthermore,its effect can be attributed to long-term potentiation(LTP)or longterm depression(LTd)-like ***,responsiveness to rTMS is largely variable in healthy and pathological brains and is mediated by complex biological *** refers to a higher-order plasticity mechanism in which the direction and magnitude of synaptic plasticity are modified by prior neuronal activity and is believed to be a significant factor leading to the response variability of rTMs.

关键词： stimulation clinical transcranial

Spatio-temporal clustering analysis of COVId-19 cases in Johor

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Infectious disease Modelling 2024年第2期9卷 387-396页

作者： fong Ying Foo Nuzlinda Abdul Rahman Fauhatuz Zahroh Shaik Abdullah Nurul Syafiah Abd Naeeim School of Mathematical Sciences Universiti Sains Malaysia11800Pulau PinangMalaysia

At the end of the year 2019,a virus named SARS-CoV-2 induced the coronavirus disease,which is very contagious and quickly spread around the *** new infectious disease is called *** areas,such as the economy,social services,education,and healthcare system,have suffered grave consequences from the invasion of this deadly ***,a thorough understanding of the spread of COVId-19 is required in order to deal with this outbreak before it becomes an infectious *** this research,the daily reported COVId-19 cases in 92 sub-districts in Johor state,Malaysia,as well as the population size associated to each sub-district,are used to study the propagation of COVId-19 disease across space and time in *** time frame of this research is about 190 days,which started from August 5,2021,until February 10,*** clustering technique known as spatio-temporal clustering,which considers the spatio-temporal metric was adapted to determine the hot-spot areas of the COVId-19 disease in Johor at the sub-district *** results indicated that COVId-19 disease does spike in the dynamic populated sub-districts such as the state's economic centre(Bandar Johor Bahru),and during the festive *** findings empirically prove that the transmission rate of COVId-19 is directly proportional to human mobility and the presence of *** the other hand,the result of this study will help the authority in charge in stopping and preventing COVId-19 from spreading and become worsen at the national level.

关键词： disease mapping COVId-19Hot-spot areas Sub-district level Spatio-temporal clustering Scan statistics

Cardiovascular health awareness,risk perception,behavioural intention and INTERHEART risk stratification among middle-aged adults in Malaysia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2024年第2期17卷 61-70页

作者： Siew-Keah Lee Ang-Lim Chua Clement Heng Yew fong Ban Hao Brian Cong Wen Ling Ng Jing Feng Kong Yik-Ling Chew Kai Bin Liew Yang Shao M.Kandiah Faculty of Medicine and Health Sciences Universiti Tunku Abdul RahmanMalaysia Faculty of Medicine Universiti Teknologi MARAMalaysia Faculty of Pharmaceutical Sciences UCSI UniversityMalaysia Faculty of Pharmacy University of CyberjayaMalaysia The First Affiliated Hospital of Hainan Medical University China

Objective:To investigate the interrelationship between cardiovascular health awareness,risk perception,behavioural intention,and INTERHEART risk stratification in a middle-aged adult population in ***:A cross-sectional survey with convenience sampling was conducted during November 2022 and January *** completed validated questionnaires assessing cardiovascular health awareness,risk perception of cardiovascular diseases,behavioural intention towards adopting healthy habits,and INTERHEART risk stratification score(IHRS)based on established risk factors.A total of 602 respondents were included in the final *** were analysed with independent t-test/one-way ANOVA or Mann-Whitney/Kruskal-Wallis to test the differences,Pearson correlation or linear regression test to analyze the association of independent and dependent ***:There was a significant positive correlation between medical knowledge related to cardiovascular disease(CVd)and knowledge related to CVd risk prevention,risk perception,behavioural intention and IHRS(Pdividuals with higher IHRS tended to have lower knowledge related to CVd and CVd risk prevention,risk perception,and behavioural ***,laborers,active/former smokers,individuals with lower household income and educational levels,those involved in occupations not related to the healthcare sector,and those who did not receive the CVd health brochure or are unaware of health self-assessment tools are likely to have lower levels of knowledge,risk perception,and poorer behavioural intention regarding cardiovascular health(Pducational level,smoking status,awareness about CVd poster,self-assessment tools were repeatedly significantly associated with knowledge related to CVd and CVd risk prevention,risk perception,behavioral intention and/or IHRS(Pdings underscore the importance of promoting car

关键词： Cardiovascular risk Knowledge Risk perception Behavioural intention INTERHEART Middle-aged Lifestyle Physical activity Psychosocial stress

Application of artifcial intelligence in cataract management:current and future directions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Eye and Vision 2024年第1期10卷 21-30页

作者： Laura Gutierrez Jane Sujuan Lim Li Lian Foo Wei Yan Ng Michelle Yip Gilbert Yong San Lim Melissa Hsing Yi Wong Allan fong Mohamad Rosman Jodhbir Singth Mehta Haotian Lin darren Shu Jeng Ting daniel Shu Wei Ting Singapore Eye Research Institute SingaporeSingapore Singapore National Eye Center 11 Third Hospital AvenueSingapore 168751Singapore Academic Ophthalmology School of MedicineUniversity of NottinghamNottinghamUK Zhongshan Ophthalmic Center Sun Yet Sen UniversityGuangzhouChina

The rise of artifcial intelligence(AI)has brought breakthroughs in many areas of *** ophthalmology,AI has delivered robust results in the screening and detection of diabetic retinopathy,age-related macular degeneration,glaucoma,and retinopathy of *** management is another feld that can beneft from greater AI *** is the leading cause of reversible visual impairment with a rising global clinical *** diagnosis,monitoring,and surgical management are necessary to address this *** addition,patients in large developing countries often sufer from limited access to tertiary care,a problem further exacerbated by the ongoing COVId-19 *** on the other hand,can help transform cataract management by improving automation,efcacy and overcoming geographical ***,AI can be applied as a telediagnostic platform to screen and diagnose patients with cataract using slit-lamp and fundus *** utilizes a deep-learning,convolutional neural network(CNN)to detect and classify referable cataracts ***,some of the latest intraocular lens formulas have used AI to enhance prediction accuracy,achieving superior postoperative refractive results compared to traditional ***,AI can be used to augment cataract surgical skill training by identifying diferent phases of cataract surgery on video and to optimize operating theater workfows by accurately predicting the duration of surgical ***,some AI CNN models are able to efectively predict the progression of posterior capsule opacifcation and eventual need for YAG laser *** advances in AI could transform cataract management and enable delivery of efcient ophthalmic *** key challenges include ethical management of data,ensuring data security and privacy,demonstrating clinically acceptable performance,improving the generalizability of AI models across heterogeneous populations,and improving the trust of e

关键词： Artifcial intelligence Telemedicine Cataract Cataract screening Cataract surgery IOL calculations Biometry Machine learning

Gammasphere上裂变丰中子核核结构若干前沿领域的新进展(Ⅱ:第三和第四部分)(英文)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

原子核物理评论 2010年第3期27卷 363-389页

作者：罗亦孝 J.H.Hamilton J.O.Rasmussen A.V.Ramayya C.Goodin A.V.daniel N.J.Stone 朱胜江 J.K.Hwang 刘少华 C.J.Beyer 李科 H.L.Crowell d.Al mehed S.Frauendorf A.Covello V.di mitrov 张敬业车兴来姜卓 d.fong A.Gelberg I.Stefanescu A.Gargano E.F.Jones P.M.Gore I.Y.Lee G.M.Ter-Akopian Yu.Ts.Oganessian M.A.Stoyer R.donangelo 马文超 J.d.Cole J.Kormicki 张学谦 S.C.Wu J.Gilat T.N.Ginter S.J.Asztalos Physics department Vanderbilt University Nashville TN 37235 USA Lawrence Berkeley National Laboratory Berkeley CA 94720 USA Flerov Laboratory for Nuclear Reactions JINR Dubna Russia Joint Institute for Heavy Ion Research Oak Ridge TN 37831 USA department of Physics Oxford University Oxford OX1 3PU United Kingdom department of Physics and Astronomy University of Tennessee Knoxville Tennessee 37996 USA Physics department Tsinghua University Beijing 100084 China department of Physics University of Notre Dame Notre Dame IN 46556 USA Institut far Strahlenphysik FZD-Rossendorf Postfach 510119 D-01314 Dresden Germany dipartimento di Scienze Fisiche Universita di Napoli Federico II and Istituto Nazionale di Fisica Nuclear Complesso Universitario di Monte S. Angelo Via Cintia 80126 Napoli Italy Idaho Accelerator Center Idaho State University Pocatello ID-83209-8263 USA Institut fur Kernphysik Universitat zu Koln 50937 Kdln Germany department of Chemistry and Biochemistry University of Maryland MD 20742 USA Lawrence Livermore National Laboratory Livermore CA 94550 USA Instituto de Fisica Facultad de Ingenieria C. C. 30 11300 Montevideo Uruguay Mississippi State University Drawer 5167 Mississippi State MS 39762 USA Idaho National Laboratory Bldg. IRCPL MS2114 Idaho Falls ID 83415 USA department of Physics National Tsing Hua University Hsinchu Taiwan 30013 China National Superconducting Cyclotron Laboratory Michigan State University East Lansing Michigan 48824 USA Massachusetts Institute of Technology Cambridge Massachusetts 02139 USA

使用Gammasphere多探测器系统对252Cf裂变源瞬发γ射线进行γ-γ-γ和γ-γ(θ)符合测量,A～100(Z～40,N>56)丰中子核区关于形状过渡、形状共存和形状突变的深入研究获得了新的进展。奇-Z核的系统研究揭示了从Z=39(Y)同位素的轴对称大... 详细信息

使用Gammasphere多探测器系统对252Cf裂变源瞬发γ射线进行γ-γ-γ和γ-γ(θ)符合测量,A～100(Z～40,N>56)丰中子核区关于形状过渡、形状共存和形状突变的深入研究获得了新的进展。奇-Z核的系统研究揭示了从Z=39(Y)同位素的轴对称大四极形变到Z=43(Tc),44(Ru)和45(Rh)同位素中具有中等四极形变之大三轴形变的过渡。Nb(Z=41)同位素具有过渡核的特征。根据邻近同位素和同中素带交叉信息的系统性及推转壳模型(CSM)计算,Tc和Rh偶-N同位素中观察到的带交叉产生于一对h11/2中子的转动顺排。首次观察到100Nb(Z=41,N=59)的高自旋能级纲图和形变态,从而证实了100Nb中的形状共存,并确认,在Nb同位素链上,基态形状突变发生于N=58(球形)到N=59(大形变);而在Sr(Z=38),Y(Z=39)和Zr(Z=40)各同位素链上,基态形状突变均发生于N=59(球形)到N=60(大形变)。100Nb具有大形变基态,同现有理论预言相矛盾,其大形变的基态及转动带所具有的很大的和不规则的转动惯量具有重要的理论意义。对奇-质子Cs(Z=55)和La(Z=57)丰中子同位素八极激发的详细研究,发现了141,143,144Cs同位素链上电二极矩d0随中子数增加而减小的急剧变化,此前在145,147La中观察到的电二极矩d0的较缓和的减小似乎亦很陡地下延至148La。在Cs和La同位素中观察到的电二极矩d0的急剧下降很可能同偶-质子核146Ba和224Ra中观察到的电二极矩d0的急剧下降相类似,后者已获反射非对称平均场壳修正理论的成功解释。实验证明,141Cs具有很大电二极矩d0。141Cs和142Xe中观测到的很大的电二极矩d0和仅在141Cs中观察到的电二极矩d0的simplex量子数相关性需要进一步的理论研究。根据转动频率比值ω-(I)/ω+(I)的检定,同Xe同位素一样,认定Cs同位素中包括号143Cs的八极激发为八极振动,而在La同位素中存在八极形变。

关键词：形状过渡轴对称形状三轴形变形状突变带交叉奇-质子八极激发 B(E1)/B(E2)比值电二极矩d0 二极矩的下降八极振动 Cs,La同位素