检索结果-南通市图书馆

Feedback deer hunting optimization algorithm for intrusion detection in cloud based deep residual network

International Journal of Modeling, simulation, and scientific Computing 2021年第6期12卷 33-55页

作者： sobin soniya.s maria Celestin Vigila.s Noorul Islam Centre for Higher Education Thuckalay KumaracoilTamil Nadu 629180India

Cloud computing is the distributed computing paradigm continually exposed to different attacks and threats of various *** data stored in the cloud framework is easier for external and internal intruders,as access to the cloud framework is done through internet *** intrusion detection(ID)methods are developed to detect network intruders in the cloud,but these methods are not primarily effective in generating accurate detection ***,an effective intrusion detection system(IDs)is designed to solve the security issues that unfavorably influence the sustainable development of the cloud and enhance the protection of the cloud from malicious *** IDs is modeled using the proposed Feedback Deer Hunting Optimization(FDHO)-based Deep Residual network to detect network ***,the proposed FDHO algorithm is designed by integrating Feedback Artificial Tree(FAT)with Deer Hunting Optimization(DHOA),***,the detection of malicious attacks is carried out using a Deep Residual network that significantly increases the training speed,reduces the computational complexity,and generates effective detection *** performance of the proposed method is comparatively analyzed with the existing techniques,such as stacked Contractive Auto-Encoder and support Vector Machine(sCAE+sVM),Artificial Neural Network with ant bee colony optimization algorithm+fuzzy clustering(ANN+ABC+fuzzy clustering),Improved dynamic immune algorithm(IDIA),and Normalized K-means(NK)clustering algorithm with RNN named,(NK-RNN),FAT-based Deep Residual network,and DHOA-based Deep Residual network using the BoT-IoT dataset and KDD cup-99 *** proposed method achieved outstanding performance by considering the metrics,like specificity,accuracy,and sensitivity,with the values of 0.9526,0.9498,and 0.9214 using the BoT-IoT dataset.

关键词： Intrusion detection cloud computing support vector machine Deep Residual network virtual machine

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

Carcinosarcoma of the breast:Facing the challenge of a rare nosologic entity

引用

World Journal of Clinical Cases 2025年第2期13卷 14-20页

作者： Aikaterini Mastoraki maria Tsamopoulou Foivos-Konstantinos stamatis Alexios strimpakos Ero Mouchtouri Christiana Panagi Evgenia Mela sotiria Mastoraki Aristotelis Kechagias Dimitrios schizas Department of surgery National and Kapodistrian University of AthensLaikon General HospitalAthens 11527Greece Department of surgery National and Kapodistrian University of AthensAthens 11527Greece Department of Medical Oncology Hygeia HospitalAthens 15123Greece Department of Radiology Henry Dunant Hospital CenterAthens 11526Greece Department of surgery Athens Metropolitan HospitalAthens 15562Greece

Carcinosarcoma(Cs),also known as metaplastic breast carcinoma with mesenchymal differentiation,is one of the five distinct subtypes of metaplastic breast *** is considered as a mixed,biphasic neoplasm consisting of a carcinomatous component combined with a malignant nonepithelial element of mesenchymal origin without an intermediate transition *** cellular origin of this neoplasm remains controversial,most researchers declare that neoplastic cells derive from a cellular structure with potential biphasic *** recent research on the therapeutic strategies against Cs neoplastic disorders,surgical resection appears the only potentially curative *** Cs metastasize by the lymphatic route,axillary assessment with sentinel lymph node biopsy and/or axillary lymph node dissection is always ***,the tumor also presents a hematogenous metastatic pattern including pleural,pulmonary,liver,brain and less commonly bone ***,surgical removal of breast Cs does not necessarily ensure patient’s long-term ***,alternative therapies,such as radio-and chemotherapy proved insufficient and 5-year survival rate is ***,there is evidence that following surgery,the combination of radio and chemotherapy is associated with a better prognosis than either treatment *** aim of this review is to evaluate the results of surgical treatment for breast Cs with special reference to the extent of its histological *** features,histogenesis,morphological and immunochemical findings are discussed,while the role of current diagnostic and therapeutic management of this aggressive neoplasm is emphasized.

关键词： Carcinosarcoma Breast Diagnostic approach Therapeutic management Prognostic parameters

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

K-Corruption Intermittent Attacks for Violating the Codiagnosability

引用

IEEE/CAA Journal of Automatica sinica 2025年第1期 159-172页

作者： Ruotian Liu Yihui Hu Agostino Marcello Mangini maria Pia Fanti IEEE the Department of Electrical and Information Engineering Polytechnic University of Bari the school of Automation Xi'an University of Posts and Telecommunications

In this work, we address the codiagnosability analysis problem of a networked discrete event system under malicious attacks. The considered system is modeled by a labeled Petri net and is monitored by a series of sites, in which each site possesses its own set of sensors, without requiring communication among sites or to any coordinators. A net is said to be codiagnosable with respect to a fault if at least one site could deduce the occurrence of this fault within finite steps. In this context, we focus on a type of malicious attack that is called stealthy intermittent replacement attack. The stealthiness demands that the corrupted observations should be consistent with the system's normal behavior, while the intermittent replacement setting entails that the replaced transition labels must be recovered within a bounded of consecutive corrupted observations(called as K-corruption intermittent attack). Particularly, there exists a coordination between attackers that are separately effected on different sites, which holds the same corrupted observation for each common transition under attacks. From an attacker viewpoint, this work aims to design Kcorruption intermittent attacks for violating the codiagnosability of systems. For this purpose, we propose an attack automaton to analyze K-corruption intermittent attack for each site, and build a new structure called complete attack graph that is used to analyze all the potential attacked paths. Finally, an algorithm is inferred to obtain the K-corruption intermittent attacks, and examples are given to show the proposed attack strategy.

关键词：

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

Hydro-wind Optimal Operation for Joint Bidding in Day-ahead Market: storage Efficiency and Impact of Wind Forecasting Uncertainty

引用

Journal of Modern Power systems and Clean Energy 2020年第1期8卷 142-149页

作者： António Cerejo sílvio J.P.s.mariano Pedro M.s.Carvalho maria R.A.Calado Technical-scientific Unity of Electrical and Industrial Engineering Polytechnic Institute of Castelo BrancoAvenida do Empresário6000-767 Castelo BrancoPortugal Department of Electromechanical Engineering University of Beira Interior and Instituto de TelecomunicacoesCalcada Fonte do Lameiro6201-001 CovilhaPortugal Department of Electrical and Computer Engineering Instituto Superior Técnicoand INESC-IDUniversity of LisbonAv.Rovisco Pais1049-001 LisbonPortuga

Wind power production is *** imbalance between committed and delivered energy in pool markets leads to the increase of system costs,which must be incurred by defaulting producers,thereby decreasing their *** avoid this situation,wind producers can submit their bids together with hydro *** the mismatches between the predicted and supplied wind power can be used by hydro producers,turbining or pumping such differences when *** study formulates the problem of hydro-wind production optimization in operation contexts of pool *** problem is solved for a simple three-reservoir cascade case to discuss optimization *** results show a depreciation in optimal revenues from hydro power when wind forecasting is *** depreciation is caused by an asymmetry in optimal revenues from positive and negative wind power *** problem of neutralizing the effect of forecasting uncertainty is subsequently formulated and solved for the three-reservoir *** results are discussed to conclude the impacts of uncertainty on joint bidding in pool market contexts.

关键词： Optimization hydro power wind power uncertainty joint bidding pool market

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

Global photometric analysis of Galactic HII regions

引用

Research in Astronomy and Astrophysics 2018年第8期18卷 21-28页

作者： Anastasiia Topchieva Dmitri Wiebe maria s.Kirsanova Institute of Astronomy Russian Academy of SciencesMoscow 119017Russia Ural Federal University 19 Mira Str.EkaterinburgRussia

Total infrared fluxes are estimated for 99 HII regions around massive stars. The following wavebands have been used for the analysis： 8 and 24 μm, based on data from the spitzer space Telescope （IRAC and MIPs, respectively）; 70, 160, 250, 350 and 500 μm, based on data from the Herschel space Observatory （PACs and sPIRE）. The estimated fluxes are used to evaluate the polycyclic aromatic hy- drocarbon （PAH） mass fraction （qPAH） and the intensity of ultraviolet emission in the studied objects. It is shown that the PAH mass fraction, qPAH, is much lower in these objects than the average Galactic value, implying effective destruction of aromatic particles in HII regions. Estimated radiation field inten- sities （U） are close to those derived for extragalactic HII complexes. Color indices [F24/F8], [F70/F24], [F160/F24] and [F160/F70] are compared to criteria proposed to distinguish between regions of ionized hydrogen and planetary nebulae. Also, we relate our results to analogous color indices for extragalactic complexes of ionized hydrogen.

关键词： IsM bubbles - (IsM) HII regions - IsM lines and bands

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

Therapeutic options for the management of pancreatic cancer

引用

World Journal of Gastroenterology 2014年第32期20卷 11142-11159页

作者： maria L Rossi Azeem A Rehman Christopher s Gondi Department of Medicine University of Illinois College of MedicinePeoria Peoria IL 61656-1649 United States

since its initial characterization, pancreatic ductal adenocarcinoma has remained one of the most devastating and difficult cancers to treat. Pancreatic cancer is the fourth leading cause of death in the United states, resulting in an estimated 38460 deaths annually. With few screening tools available to detect this disease at an early stage, 94% of patients will die within five years of diagnosis. Despite decades of research that have led to a better understanding of the molecular and cellular signaling pathways in pancreatic cancer cells, few effective therapies have been developed to target these pathways. Other treatment options have included more sophisticated pancreatic cancer surgeries and combination therapies. While outcomes have improved modestly for these patients, more effective treatments are desperately needed. One of the greatest challenges in the future of treating this malignancy will be to develop therapies that target the tumor microenvironment and surrounding pancreatic cancer stem cells in addition to pancreatic cancer cells. Recent advances in targeting pancreatic stellate cells and the stroma have encouraged researchers to shift their focus to the role of desmoplasia in pancreatic cancer pathobiology in the hopes of developing newer-generation therapies. By combining novel agents with current cytotoxic chemotherapies and radiation therapy and personalizing them to each patient based on specific biomarkers, the goal of prolonging a patient’s life could be achieved. Here we review the most effective therapies that have been used for the treatment of pancreatic cancer and discuss the future potential of therapeutic options.

关键词： Pancreatic cancer Pancreatic cancer stem cells Microenvironment surgical resection Neoadjuvant therapy Adjuvant therapy Chemotherapy Radiation Personalized therapy

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

Recent advances in biomaterials for 3D scaffolds: A review

引用

Bioactive Materials 2019年第1期4卷 271-292页

作者： maria P.Nikolova Murthy s.Chavali Department of Material science and Technology University of Ruse“A.Kanchev”8 Studentska Str.7000RuseBulgaria shree Velagapudi Ramakrishna Memorial College(PG studies Autonomous)Nagaram522268Guntur DistrictIndia PG Department of Chemistry Dharma Appa Rao CollegeNuzvid521201Krishna DistrictIndia MCETRC Tenali522201Guntur DistrictAndhra PradeshIndia

Considering the advantages and disadvantages of biomaterials used for the production of 3D scaffolds for tissue engineering,new strategies for designing advanced functional biomimetic structures have been *** offer a comprehensive summary of recent trends in development of single-(metal,ceramics and polymers),composite-type and cell-laden scaffolds that in addition to mechanical support,promote simultaneous tissue growth,and deliver different molecules(growth factors,cytokines,bioactive ions,genes,drugs,antibiotics,etc.)or cells with therapeutic or facilitating regeneration *** paper briefly focuses on divers 3D bioprinting constructs and the challenges they *** on their application in hard and soft tissue engineering,in vitro and in vivo effects triggered by the structural and biological functionalized biomaterials are *** authors discuss the future outlook for the development of bioactive scaffolds that could pave the way for their successful imposing in clinical therapy.

关键词： Bioactive scaffolds Bone tissue engineering Polymeric biomaterials Bioceramics Bioprinting

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

Enhance stability and in vitro Cell Response to a Bioinspired Coating on Zr Alloy with Increasing Chitosan Content

引用

Journal of Bionic Engineering 2017年第3期14卷 459-467页

作者： Daniela Ionita maria Vardaki Miruna s. stan Anca Dinischiotu Ioana Demetrescu Faculty of Applied Chemistry and Materials science University Politehnica of Bucharest 1-7 Polizu 011061 Bucharest Romania Department of Biochemistry and Molecular Biology Faculty of Biology University of Bucharest 91-95 Splaiullndependentei 050095 Bucharest Romania Academy of Romanian scientist Splaiullndependentei 54 050094 Bucharest Romania

The aim of the present paper is to characterize bioinspired chitosan （Cs）＋ hydroxyapatite （HA） coatings with various components ratio on a zirconium alloy with titanium. The coatings were characterized by FT-IR, sEM, hydrophilic/hydrophobic balance, adherence, roughness, electrochemical stability and in vitro cell response. Electrochemical tests, including potentio- dynamic polarization curves and electrochemical impedance spectroscopy, were performed in normal saline physiological solution. Cell viability of MC3T3-E1 osteoblasts, lactate dehydrogenase, nitric oxide, and Reactive Oxygen species （ROs） levels, as well as actin cytoskeleton morphology, were evaluated as biological in vitro tests. The results on in vitro cell response indicated good cell membrane integrity and viability for all samples, but an increased cell number, a decreased ROs level and a better cytoskeleton organization were noticed for the sample with a higher Cs content. The coating with highest Cs concen- tration indicated the best performance based on the experimental data. The highest hydrophilic character, highest resistance to corrosion and best biocompatibility as well recommend this coating for bioapplications in tissue engineering.

关键词： ZrTi alloy bioinspired coating cells response electrochemical stability

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

Florivory by the occupants of phytotelmata in flower parts can decrease host plant fecundity

引用

Current Zoology 2022年第1期68卷 69-79页

作者： Caio C.C.MIssAGIA maria Alice s.ALVEs Graduate Program in Ecology and Evolution Universidade do Estado do Rio de JaneiroPavilhao Haroldo Lisboa da CunhaSala 224Rua Sao Francisco Xavier524MaracanaRio de Janeiro 20550-013Brazil Department of Ecology Universidade do Estado do Rio de JaneiroPavilhao Haroldo Lisboa da CunhaSala 220Rua Sao Francisco Xavier524MaracanaRio de Janeiro 20550-013Brazil

some types of plant accumulate liquid in their inflorescences creating *** environments protect the flowers against florivory,although they may be colonized by aquatic or semiaquatic florivorous insect larvae,whose effects on the fitness of the plants remain *** tested the hypothesis of floral antagonism by the occupants of phytotelmata,which predicts that florivory by the occupants of the phytotelmata represents a cost to the female fitness of the plant,reducing its *** manipulated experimentally the infestation by 3 florivores larvae species occupants of phytotelmata in inflorescences of Heliconia spathocircinata(Heliconiaceae)to test for negative direct trophic effects on the fecundity of the flowering and fruiting *** found that the foraging of the hoverfly(syrphidae)and moth(Lepidoptera)larvae in the inflorescences contributed to a decline in the fecundity of the *** the lepidopteran impacted fecundity when foraging in both flowering and fruiting bracts,the syrphid only affected the fruiting bracts,which indicates that the nectar and floral tissue are the principal resource exploited by the *** contrast,soldier fly(stratiomyidae)had a neutral effect on fecundity,while foraging in flowering or fruiting *** findings corroborate our hypothesis,that herbivory by the larval occupants represents cost to the host plant having *** negative influence of this foraging on plant fecundity will nevertheless depend on the consequences of the exploitation of resources,which vary considerably in ephemeral habitats such as the phytotalmanta of flower parts.

关键词： Atlantic forest Brazil florivory frugivory Heliconia water-held 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

Abnormal DNA methylation as a cell-free circulating DNA biomarker for colorectal cancer detection:A review of literature

引用

World Journal of Gastrointestinal Oncology 2017年第4期9卷 142-152页

作者： Michail Galanopoulos Nikolaos Tsoukalas Ioannis s Papanikolaou maria Tolia maria Gazouli Gerassimos J Mantzaris Department of Gastroenterology 'Evaggelismos-Ophthalmiatreion Athinon-Polycliniki' Department of Medical Oncology Veterans Hospital (417 NIMTS) Hepatogastroenterology Unit Second Department of Internal Medicine and Research InstituteAttikon University General HospitalMedical SchoolNational and Kapodistrian University of Athens Department of Radiotherapy/Radiation Oncology Faculty of MedicineSchool of Health SciencesUniversity of Thessaly Department of Basic Medical sciences Laboratory of Biology Medical SchoolNational and Kapodistrian University of Athens

Colorectal cancer(CRC) is one of the most prevalent malignancies in the world. CRC-associated morbidity and mortality is continuously increasing, in part due to a lack of early detection. The existing screening tools such as colonoscopy, are invasive and yet high cost, affecting the willingness of patients to participate in screening programs. In recent years, evidence is accumulating that the interaction of aberrant genetic and epigenetic modifications is the cornerstone for the CRC development and progression by alternating the function of tumor suppressor genes, DNA repair genes and oncogenes of colonic cells. Apart from the understanding of the underlying mechanism(s) of carcinogenesis, the aforementioned interaction has also allowed identification of clinical biomarkers, especially epigenetic, for the early detection and prognosis of cancer patients. One of the ways to detect these epigenetic biomarkers is the cell-free circulating DNA(circ DNA), a blood-based cancer diagnostic test, mainly focusing in the molecular alterations found in tumor cells, such as DNA mutations and DNA *** this brief review, we epitomize the current knowledge on the research in circ DNA biomarkers-mainly focusing on DNA methylation-as potential blood-based tests for early detection of colorectal cancer and the challenges for validation and globally implementation of this emergent technology.

关键词： Colorectal cancer early detection Colorectal cancer screening Circulating free DNA Colorectal cancer blood-based biomarkers DNA methylation blood biomarkers

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：