检索结果-南通市图书馆

On thermodynamic self-consistency of generic axiomatic-nonextensive statistics

Chinese Physics C 2017年第5期41卷 73-90页

作者： Abdel Nasser Tawfik Hayam Yassin eman r.abo elyazeed Egyptian Center for Theoretical Physics (ECTP) Modern University for Technology and Information (MTI) 11571 Cairo Egypt World Laboratory for Cosmology and Particle Physics (WLCAPP) 11571 Cairo Egypt Physics Department Faculty of Women for Arts Science and Education Ain Shams University 11577 Cairo Egypt

Generic axiomatic-nonextensive statistics introduces two asymptotic properties,to each of which a scaling function is *** first and second scaling properties are characterized by the exponents c and d,*** the thermodynamic limit,a grand-canonical ensemble can be *** thermodynamic properties of a relativistic ideal gas of hadron resonances are studied,*** is found that this generic statistics satisfies the requirements of the equilibrium *** aspects of the thermodynamic self-consistency are *** expressions are proposed for the statistical fits of various transverse momentum distributions measured in most-central collisions at different collision energies and colliding *** for the freezeout temperature（T_（ch）） and the baryon chemical potential（μ_b） and the exponents c and d are *** earlier are found compatible with the parameters deduced from Boltzmann-Gibbs（BG） statistics（extensive）,while the latter refer to generic *** resulting equivalence class（c,d） is associated with stretched exponentials,where Lambert function reaches its asymptotic *** some measurements,the resulting nonextensive entropy is linearly composed on extensive *** from power-scaling,the particle ratios and yields are excellent quantities to highlighting whether the particle production takes place（non）*** particle ratios and yields measured by the STAr experiment in central collisions at 200,62.4 and 7.7 GeV are fitted with this novel *** found that both c and d 〈 1,*** to neither BG-nor Tsallis-type statistics,but to（c,d）-entropy,where Lambert functions exponentially *** freezeout temperature and baryon chemical potential are found comparable with the ones deduced from BG statistics（extensive）.We conclude that the particle production at STAr energies is likely a nonextensive process but not necessarily BG or Tsallis

关键词： thermodynamic consistency asymptotic relativistic momentum quantities exponentially collision entropy generic

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

Video Summarization Approach Based on Binary robust Invariant Scalable Keypoints and Bisecting K-Means

引用

Computers, Materials & Continua 2024年第3期78卷 3565-3583页

作者： Sameh Zarif eman Morad Khalid Amin Abdullah Alharbi Wail S.Elkilani Shouze Tang Department of Information Technology Faculty of Computers and InformationMenoufia UniversityMenoufia32511Egypt Department of Artificial Intelligence Faculty of Artificial IntelligenceEgyptian Russian UniversityBader11829Egypt Department of Computer Science Community CollegeKing Saud UniversityRiyadh11362Saudi Arabia College of Applied Computer Science King Saud UniversityAl-Muzahmiya19676Saudi Arabia School of Communication and Information Engineering Chongqing University of Posts and TelecommunicationsChongqing400065China

Due to the exponential growth of video data,aided by rapid advancements in multimedia *** became difficult for the user to obtain information from a large video *** process of providing an abstract of the entire video that includes the most representative frames is known as static video *** method resulted in rapid exploration,indexing,and retrieval of massive video *** propose a framework for static video summary based on a Binary robust Invariant Scalable Keypoint(BrISK)and bisecting K-means clustering *** current method effectively recognizes relevant frames using BrISK by extracting keypoints and the descriptors from video *** video frames’BrISK features are clustered using a bisecting K-means,and the keyframe is determined by selecting the frame that is most near the cluster *** applying any clustering parameters,the appropriate clusters number is determined using the silhouette *** were carried out on a publicly available open video project(OVP)dataset that contained videos of different *** proposed method’s effectiveness is compared to existing methods using a variety of evaluation metrics,and the proposed method achieves a trade-off between computational cost and quality.

关键词： BrISK bisecting K-mean video summarization keyframe extraction shot detection

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

Enhancing Security and Privacy in Distributed Face recognition Systems through Blockchain and GAN Technologies

引用

Computers, Materials & Continua 2024年第5期79卷 2609-2623页

作者： Muhammad Ahmad Nawaz Ul Ghani Kun She Muhammad Arslan rauf Shumaila Khan Javed Ali Khan eman Abdullah Aldakheel Doaa Sami Khafaga School of Information and Software Engineering University of Electronic Science and Technology of ChinaChengdu611731China Department of Computer Science University of Science&TechnologyBannu28100Pakistan Department of Computer Science University of HertfordshireHatfieldAL109ABUK Department of Computer Sciences College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh11671Saudi Arabia

The use of privacy-enhanced facial recognition has increased in response to growing concerns about data securityand privacy in the digital age. This trend is spurred by rising demand for face recognition technology in a varietyof industries, including access control, law enforcement, surveillance, and internet communication. However,the growing usage of face recognition technology has created serious concerns about data monitoring and userprivacy preferences, especially in context-aware systems. In response to these problems, this study provides a novelframework that integrates sophisticated approaches such as Generative Adversarial Networks (GANs), Blockchain,and distributed computing to solve privacy concerns while maintaining exact face recognition. The framework’spainstaking design and execution strive to strike a compromise between precise face recognition and protectingpersonal data integrity in an increasingly interconnected environment. Using cutting-edge tools like Dlib for faceanalysis,ray Cluster for distributed computing, and Blockchain for decentralized identity verification, the proposedsystem provides scalable and secure facial analysis while protecting user privacy. The study’s contributions includethe creation of a sustainable and scalable solution for privacy-aware face recognition, the implementation of flexibleprivacy computing approaches based on Blockchain networks, and the demonstration of higher performanceover previous methods. Specifically, the proposed StyleGAN model has an outstanding accuracy rate of 93.84%while processing high-resolution images from the CelebA-HQ dataset, beating other evaluated models such asProgressive GAN 90.27%, CycleGAN 89.80%, and MGAN 80.80%. With improvements in accuracy, speed, andprivacy protection, the framework has great promise for practical use in a variety of fields that need face recognitiontechnology. This study paves the way for future research in privacy-enhanced face recognition systems, emphasizingt

关键词： Facial recognition privacy protection blockchain GAN distributed systems

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

Optimization of Cooperative relayingMolecular Communications for Nanomedical Applications

引用

Computer Modeling in Engineering & Sciences 2024年第2期138卷 1259-1275页

作者： eman S.Attia Ashraf A.M.Khalaf Fathi E.Abd El-Samie Saied M.Abd El-atty Konstantinos A.Lizos Osama Alfarraj Heba M.El-Hoseny Department of Electrical Engineering Faculty of EngineeringMinia UniversityMinia61111Egypt Department of Electronics and Electrical Communications Engineering Faculty of Electronic EngineeringMenoufia UniversityMenouf32952Egypt Department of Informatics Faculty of Mathematics and Natural SciencesUniversity of Oslo(UiO)OsloNorway Computer Science Department Community CollegeKing Saud UniversityRiyadh11437Saudi Arabia Department of Computer science The Higher Future Institute for Specialized Technological StudiesEl ShoroukEgypt

recently,nano-systems based on molecular communications via diffusion(MCvD)have been implemented in a variety of nanomedical applications,most notably in targeted drug delivery system(TDDS)***,because the MCvD is unreliable and there exists molecular noise and inter symbol interference(ISI),cooperative nano-relays can acquire the reliability for drug delivery to targeted diseased cells,especially if the separation distance between the nano transmitter and nano receiver is *** this work,we propose an approach for optimizing the performance of the nano system using cooperative molecular communications with a nano relay scheme,while accounting for blood flow effects in terms of drift *** fractions of the molecular drug that should be allocated to the nano transmitter and nano relay positioning are computed using a collaborative optimization problem solved by theModified Central Force Optimization(MCFO)*** the previous work,the probability of bit error is expressed in a closed-form *** is used as an objective function to determine the optimal velocity of the drug molecules and the detection threshold at the nano *** simulation results show that the probability of bit error can be dramatically reduced by optimizing the drift velocity,detection threshold,location of the nano-relay in the proposed nano system,and molecular drug budget.

关键词： Nanomedical system molecular communication cooperative relay optimization

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

Emphysema versus Chronic Bronchitis in COPD: Clinical and radiologic Characteristics

引用

Open Journal of radiology 2014年第2期4卷 155-162页

作者： Wafaa Ali Hassan eman abo-Elhamd Chest and radiology Departments Assiut University Assiut Egypt

Background and Objectives: In clinical practice, spirometry plays a key role in the diagnosis of chronic obstructive pulmonary disease (COPD), however, it provides no information about structural pulmonary abnormality. The aim of this study was to evaluate whether there is a relation between the clinical criteria and chest radiography or CT studies in differentiating chronic bronchitis from emphysema in COPD. Patients and methods: In a prospective study, data analysis on 165 COPD subjects who were enrolled between September, 2011 and December 2012 was completed. Data were collected including clinical characteristics of stable COPD, pulmonary function tests, chest X-ray and multidetector computerized tomography (MDCT) findings. results: Emphysema was diagnosed in 90 (55%) of 165 CT scans. The median emphysema score was 58 (range 48 - 72) and significantly correlated with lower FEV1 values (r = 0.542, p = 0.003). In chronic bronchitis, bronchial wall thickening was diagnosed approximately as often in chest radiography (56%) as in CT (64%) as a major finding. Body mass index (BMI), forced expiratory volume in the first second (FEV1), and diffusion capacity of the lung for carbon monoxide (DL,CO) were significantly lower, whereas total lung capacity (TLC) was higher in patients with emphysema. Cardiovascular diseases and obstructive sleep apnea syndrome (OSAS) were more common in chronic bronchitis group. Conclusions: Chest radiography is a valuable, inexpensive means of diagnosing emphysema or bronchial wall thickening in chronic bronchitis. Emphysematous patients show a worse pulmonary function and a greater dyspnea. Greater comorbidity in chronic bronchitis may require specific treatment strategies in this subgroup.

关键词： COPD Chronic Bronchitis Chest X-ray CT

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

Diagnosis of Autism Spectrum Disorder by Imperialistic Competitive Algorithm and Logistic regression Classifier

引用

Computers, Materials & Continua 2023年第11期77卷 1515-1534页

作者： Shabana r.Ziyad Liyakathunisa eman Aljohani I.A.Saeed Department of Computer Science College of Computer Engineering and SciencesPrince Sattam bin Abdulaziz UniversityAl Kharj16274Saudi Arabia Department of Computer Science College of Computer Science and EngineeringTaibah UniversityMadinah41411Saudi Arabia Department of Information Systems College of Computer Engineering and SciencesPrince Sattam bin Abdulaziz UniversityAl Kharj16274Saudi Arabia

Autism spectrum disorder(ASD),classified as a developmental disability,is now more common in children than ever.A drastic increase in the rate of autism spectrum disorder in children worldwide demands early detection of autism in *** can seek professional help for a better prognosis of the child’s therapy when ASD is diagnosed under five *** research study aims to develop an automated tool for diagnosing autism in *** computer-aided diagnosis tool for ASD detection is designed and developed by a novel methodology that includes data acquisition,feature selection,and classification *** most deterministic features are selected from the self-acquired dataset by novel feature selection methods before *** Imperialistic competitive algorithm(ICA)based on empires conquering colonies performs feature selection in this *** performance of Logistic regression(Lr),Decision tree,K-Nearest Neighbor(KNN),and random Forest(rF)classifiers are experimentally studied in this research *** experimental results prove that the Logistic regression classifier exhibits the highest accuracy for the self-acquired *** ASD detection is evaluated experimentally with the Least Absolute Shrinkage and Selection Operator(LASSO)feature selection method and different *** Exploratory Data Analysis(EDA)phase has uncovered crucial facts about the data,like the correlation of the features in the dataset with the class variable.

关键词： Autism spectrum disorder feature selection imperialist competitive algorithm LASSO logistic regression random forest

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

Anterior Mediastinal Fat Changes in Idiopathic Pulmonary Fibrosis: A Preliminary Study

引用

Open Journal of respiratory Diseases 2014年第1期4卷 18-21页

作者： Wafaa Ali Hassan eman abo-Elhamd Chest and radiology Departments Assiut University Hospital Assiut Egypt

Background: The mediastinum is composed primarily of fatty tissue that is surrounded by the lungs bilaterally. There is a lack in the published literature in studying changes in mediastinal fat in idiopathic pulmonary fibrosis (IPF). The purpose of this study was to determine whether the shape and dimensions of the anterior mediastinal fat in patients with IPF are different from that of a normal control group and to correlate the changes with disease severity. Design and Setting: This prospective case control study was done at the chest department of Assiut University Hospital on IPF patients from May 2010-September 2012. A questionnaire containing questions such as age, sex, clinical findings, high resolution computerized tomography (HrCT) score and pulmonary function tests (PFTs) was filled for patients and normal controls. results: The IPF retrosternal AP dimension was significantly shorter (p = 0.03) and the transverse dimension was longer (p = 0.001) than that in the normal control group. The convex shape of the anterior mediastinum was predictive of IPF (p = 0.001), whereas concave shape was predictive of normal controls (p = 0.001). The change in anteroposterior diameter (AP) and transverse diameters showed significant correlation with the changes in FVC, DLCO and HrCT score. Conclusions: IPF patients had reduced retrosternal AP and increased transverse dimensions than those of the controls with convex shape of their anterior mediastinal fat. Changes in anterior mediastinal fat dimensions are correlated with lower FVC, DLCO and higher HrCT score. A larger sample size, better multicenteric study is needed to confirm the results of this study.

关键词： Mediastinum Fat Idiopathic Pulmonary Fibrosis CT

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

Agmatine induces gastric protection against ischemic injury by reducing vascular permeability in rats

引用

World Journal of Gastroenterology 2012年第18期18卷 2188-2196页

作者： Abeer A Al Masri eman El Eter Department of Physiology College of Medicine and King Khalid University HospitalKing Saud UniversityRiyadh 11461Saudi Arabia

AIM:To investigate the effect of administration of agmatine(AGM) on gastric protection against ischemia reperfusion(I/r) ***:Three groups of rats(6/group);sham,gastric I/r injury,and gastric I/r + AGM(100 mg/kg,*** 15 min prior to gastric ischemia) were *** injury was conducted by ligating celiac artery for 30 min and reperfusion for another 30 *** tissues were histologically studied and immunostained with angiopoietin 1(Ang-1) and *** endothelial growth factor(VEGF) and monocyte chemoattractant protein-1(MCP-1) were measured in gastric tissue *** assess whether AKt/phosphatidyl inositol-3-kinase(PI3K) mediated the effect of AGM,an additional group was pretreated with Wortmannin(WM)(inhibitor of Akt/PI3K,15 μg/kg,i.p.),prior to ischemic injury and AGM treatment,and examined histologically and *** set of experiments was run to study vascular permeability of the stomach using Evan's blue ***:AGM markedly reduced Evan's blue dye extravasation(3.58 ± 0.975 μg/stomach vs 1.175 ± 0.374 μg/stomach,P rotein vs 48.4 ± 6.53 pg/100 mg protein,P rotein vs 41.17 ± 10.4 pg/100 mg protein,P reserved gastric histology and reduced ***-1 and Ang-2 immunostaining were reduced in stomach sections of AGM-treated *** administration of WM abolished the protective effects of AGM and extensive hemorrhage and ulcerations were ***:AGM protects the stomach against I/r injury by reducing vascular permeability and *** protection is possibly mediated by Akt/PI3K.

关键词： Ischemia reperfusion injury Agmatine Wortmannin Vascular permeability Monocyte chemoattractant protein-1 Stomach Vascular endothelial growth factor

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

氨三乙酸、缬氨酸、亮氨酸的三元过渡金属配合物:合成和生物学应用(英文)

引用

无机化学学报 2013年第9期29卷 1969-1978页

作者： Mostafa M H Khalil Eglal r Souaya eman H Ismail eman rabie Chemistry Department Faculty of ScienceAin Shams University11566AbbassiaCairoEgypt.埃及 Chemistry Department Faculty of ScienceTaibah UniversityAl-Madina Al-MunawarahB.O:344.Kingdom of Saudi Arabia沙特阿拉伯王国

以氨三乙酸HNTA2-为主要配体,缬氨酸(valine)或亮氨酸(leucine)为次要配体在微酸性介质中合成了Ni(Ⅱ),Cu(Ⅱ),and Zn(Ⅱ)的三元配合物。用元素分析、热分析、FTIr,UV-Vis分光光度法,磁性测量和质谱法表征了合成的三元配合物。结果表明... 详细信息

以氨三乙酸HNTA2-为主要配体,缬氨酸(valine)或亮氨酸(leucine)为次要配体在微酸性介质中合成了Ni(Ⅱ),Cu(Ⅱ),and Zn(Ⅱ)的三元配合物。用元素分析、热分析、FTIr,UV-Vis分光光度法,磁性测量和质谱法表征了合成的三元配合物。结果表明,三元配合物可在金属(M):氨三乙酸(HNTA)∶缬氨酸(valine)或亮氨酸(leucine)=1∶1∶1时制得,其分子结构为[M(HNTA)(valine)(H2O)2].1.5H2O and[M(HNTA)(leucine)(H2O)2].1.5H2O(其中M=Ni(Ⅱ)or Cu(Ⅱ))和H2[Zn(NTA)(valine)(H2O)]H2O。标题三元过渡金属配合物为八面体对称构型。同时研究了该三元配合物对大肠杆菌,金黄色葡萄球菌,白色念珠菌,黄曲霉菌(菌株从开罗大学理学院微分析中心获得)的抗菌活性。根据推荐的知名方法用标准的抗菌和抗真菌剂进行体外测试(in vitro)以评估我们的新制备的配合物对细菌和真菌物种的生长抑制活性。

关键词：缬氨酸亮氨酸三元配合物生物学应用

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

Preventive effects of cannabis on neurotoxic and hepatotoxic activities of malathion in rat

引用

Asian Pacific Journal of Tropical Medicine 2018年第4期11卷 272-279页

作者： Omar M.E.Abdel-Salam Amany A Sleem eman r Youness Fatma A.Morsy Department of Toxicology and Narcotics National Research Centre Department of Pharmacology National Research Centre Department of Medical Biochemistry National Research Centre Department of Pathology National Research Centre

Objective: To investigate the effect of Cannabis sativa extract on the development of neuroand hepato-toxicity caused by malathion injection in rats. Methods: The extract of Cannabis sativa was obtained from the plant resin by chloroform treatment. Δ~9-Tetrahydrocannabinol content of the extract(20%) was quantified using gas chromatography–mass spectrometry. The doses of cannabis extract were expressed as Δ~9-tetrahydrocannabinol content of 10 or 20 mg/kg. Malathion(150 mg/kg) was intraperitoneally administered followed after 30 min by the cannabis extract(10 or 20 mg/kg, subcutaneously). rats were euthanized 4 h later. Malondialdehyde(MDA), reduced glutathione(GSH), nitric oxide and paraoxonase-1(PON-1) activity were determined in brain and liver. Brain 5-lipoxygenase and butyrylcholinesterase(BChE) activity were measured as well. Histopathological examination of brain and liver tissue was also performed. results: Compared to controls, malathion resulted in increased oxidative stress in brain and liver. MDA and nitric oxide concentrations were significantly increased(Preased with respect to control levels(Prain 5-lipoxygenase. Brain MDA concentrations were not altered by cannabis treatment. Cannabis at 20 mg/kg, however, caused significant increase in nitric oxide and restored the GSH and PON-1 activity. Brain BChE activity significantly decreased by 26.1%(Pr treatment with 10 mg/kg cannabis. Cannabis showed no effect on brain 5-lipoxygenase. On the other hand, rats treated with cannabis exhibited significantly higher levels of liver MDA, nitric oxide and PON-1 activity compared with the malathion control group. rats treated with only malathion exhibited spongiform changes, neuronal damage in the cerebral cortex and degeneration of some Purkinje cells in the cerebellum. There were also hepatic vacuolar degeneration and dilated an

关键词： Cannabis sativa Malathion Liver damage Brain damage Oxidative stress Paraoxonase 5-Lipoxygenase

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：