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Fusion of Feature Ranking Methods for an Effective Intrusion Detection System

Computers, Materials & Continua 2023年第8期76卷 1721-1744页

作者： Seshu Bhavani Mallampati seetha hari School of Computer Science and Engineering VIT-AP UniversityAndhra PradeshIndia Center of Excellence AIand RoboticsVIT-AP UniversityAndhra PradeshIndia

Expanding internet-connected services has increased cyberattacks,many of which have grave and disastrous *** Intrusion Detection System(IDS)plays an essential role in network security since it helps to protect the network from vulnerabilities and *** extensive research was reported in IDS,detecting novel intrusions with optimal features and reducing false alarm rates are still ***,we developed a novel fusion-based feature importance method to reduce the high dimensional feature space,which helps to identify attacks accurately with less false alarm ***,to improve training data quality,various preprocessing techniques are *** Adaptive Synthetic oversampling technique generates synthetic samples for minority *** the proposed fusion-based feature importance,we use different approaches from the filter,wrapper,and embedded methods like mutual information,random forest importance,permutation importance,Shapley Additive exPlanations(SHAP)-based feature importance,and statistical feature importance methods like the difference of mean and median and standard deviation to rank each feature according to its *** by simple plurality voting,the most optimal features are *** the optimal features are fed to various models like Extra Tree(ET),Logistic Regression(LR),Support vector Machine(SVM),Decision Tree(DT),and Extreme Gradient Boosting Machine(XGBM).Then the hyperparameters of classification models are tuned with Halving Random Search cross-validation to enhance the *** experiments were carried out on the original imbalanced data and balanced *** outcomes demonstrate that the balanced data scenario knocked out the imbalanced ***,the experimental analysis proved that our proposed fusionbased feature importance performed well with XGBM giving an accuracy of 99.86%,99.68%,and 92.4%,with 9,7 and 8 features by training time of 1.5,4.5 and 5.5 s on Network Security Laborat

关键词： Cyber security feature ranking imbalance preprocessing IDS SHAP

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Enhancement in ballistic performance of composite hard armor through carbon nanotubes

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International Journal of Smart and Nano Materials 2013年第4期4卷 212-228页

作者： Jason Gibson James McKee Gregory Freihofer seetha Raghavan Jihua Gou Department of Mechanical and Aerospace Engineering University of Central FloridaOrlando 32816FLUSA

The use of carbon nanotubes in composite hard armor is discussed in this *** processing techniques to make various armor composite panels consisting of Kevlar■29 woven fabric in an epoxy matrix and the subsequent V50 test results for both 44 caliber soft-point rounds and 30 caliber FSP(fragment simulated projectile)threats are presented.A 6.5%improvement in the V50 test results was found for a combination of 1.65 wt%loading of carbon nanotubes and 1.65 wt%loading of milled *** failure mechanism of carbon nanotubes during the ballistic event is discussed through scanning electron microscope images of the panels after the *** Spectroscopy was also utilized to evaluate the residual strain in the Kevlar■29 fibers post *** Raman Spectroscopy shows a Raman shift of 25 cm^(−1) for the Kevlar■29 fiber utilized in the composite panel that had an enhancement in the V50 performance by using milled fiber and multi-walled carbon *** both scenarios where an improvement was made and other panels without any improvement allows for understanding of how loading levels and synergistic effects between carbon nanotubes and milled fibers can further enhance ballistic performance.

关键词： carbon nanotubes ballistic composites composite armor nanocomposite materials

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Ex-situ Raman spectroscopy to optimize the manufacturing process for a structural MWNT nanocomposite

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International Journal of Smart and Nano Materials 2012年第4期3卷 309-320页

作者： Gregory Freihofer Fei Liang Bharathi Mohan Jihua Gou seetha Raghavan Department of Mechanical Materialsand Aerospace EngineeringUniversity of Central FloridaOrlandoFLUSA

The G and D doublet,an intrinsic Raman feature of multi-walled nanotubes(MWNTs),was monitored in an ex-situ fashion for all intermediate stages of a manufacturing process of a MWNT/polymer *** G peak position and D/G ratios were monitored to characterize the changes in load transfer and disorder,respectively,of the *** in Raman characteristics desired during the manufacturing process for different structural applications are *** are presented that could optimize any manufacturing parameters for pressurized filtration and resin infusion using the G position and D/G integrated intensity *** Raman control techniques could be applied to any intermediate phase of a manufacturing process to develop enhanced novel carbon nanotube composites for structural applications.

关键词： Raman spectroscopy MWNT nanocomposite manufacture ex-situ investigation

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Acquisition of pronunciation of consonant clusters by Arabic speakers of English as a second language

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Sino-US English Teaching 2010年第1期7卷 46-56页

作者： seetha Jayaraman Foundation Program （English Language UniO Dhofar University Salalah 211 Sultanate of Oman

The study is based on an observation of the pronunciation of a group of undergraduate students of English as a Second Language （ESL） whose mother tongue is Arabic and who have no formal training in the spoken variety of English other than that received in the classroom. The study of acquisition of pronunciation of consonant clusters at morphological, particularly at the morphophonological levels indicates that the learners are sensitive to the syllabic structure viz., cccv type and cccvcc type, at the word-initial, medial and final positions. Samples of words with different consonant clusters were tested with a homogeneous group of students. Words of identical morphological categories were used as the data to test the students＇ level of perception. These were analyzed using Speech Analyzer Version 2.5. The data includes consonant clusters like plosive-fricative, plosive-plosive, fricative-fricative and plosive-fricative-trill/liquid combinations. The results varied according to the perceptual and articulatory abilities of the learners. It was observed that the plosive perception and acquisition of three-consonant clusters of plosive-plosive word initially, plosive-plosive combinations word finally and plosive-fricative type, posed more difficulty for the learners. The tendency to drop one of the consonants of the cluster was more pronounced with syllables ending in plural morphemes and those ending in -mp, -pt, -kt, -nt, -bt, etc. Difficulty was also noticed with the initial plosive＋/r/, plosive＋/1/combinations, especially in word initial positions. Across the syllable boundaries, these clusters are almost inaudible with some speakers. The difficulty in the articulation of these consonant clusters can be accounted for the mother tongue influence, as in the case of many other features. The results of the analysis have a pedagogical implication in the use of such words with consonant clusters, to teach reading skills to the students of undergraduate level in the prese

关键词： consonant clusters acoustic parameters duration intelligibility spectrograms

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Laser sintering of carbon nanotube-reinforced ceramic nanocomposites

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International Journal of Smart and Nano Materials 2011年第4期2卷 219-229页

作者： Yibo Gao Fei Liang Gregory Freihofer Benxin Wu Bharathi Mohan seetha Raghavan Jihua Gou Shuyou Li Brian Albee Sandra Whaley Bishnoi Illinois Institute of Technology ChicagoIL 60616USA University of Central Florida OrlandoFL 32816USA Northwestern University EvanstonIL 60208USA

The fabrication of carbon nanotube(CNT)-reinforced ceramic nanocomposites through laser sintering has been rarely studied,and the fabrication feasibility has been rarely *** sintering is a flexible,localized and high-precision process,which can also potentially produce coatings or parts with complicated shapes and/or spatially controlled ***,compared with other technologies laser sintering has its own *** investigations reported in this paper have confirmed the feasibility of fabricating CNT-reinforced ceramic nanocomposites through laser sintering of ceramic nanoparticles and *** studies show that laser sintering can induce the agglomeration of ceramic nanoparticles into a relatively more continuous ceramic phase,and during the sintering process CNTs are well preserved without any obvious quality degradation,and they are also bonded with the ceramic phase after laser sintering.

关键词： laser sintering carbon nanotube reinforcement ceramic nanocomposite

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BRCA2与LIM结构域蛋白FHL2的相互作用

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第四军医大学学报 2003年第20期24卷 1845-1848页

作者：白玉杰 seetha SV Vamla B 高庆生第四军医大学全军基因诊断技术研究所陕西西安710033 塔夫茨大学医学院放射肿瘤研究所美国波士顿ma21000

目的 :应用酵母双杂交方法筛选BRCA2相互作用蛋白编码基因 ,验证其相互作用并研究其功能联系 .方法 :以BRCA2基因 3′端片段构建酵母双杂交质粒 ,筛选正常人乳腺上皮细胞cDNA文库 ,获得编码相互作用蛋白的基因 ,采用免疫共沉淀、哺乳细... 详细信息

目的 :应用酵母双杂交方法筛选BRCA2相互作用蛋白编码基因 ,验证其相互作用并研究其功能联系 .方法 :以BRCA2基因 3′端片段构建酵母双杂交质粒 ,筛选正常人乳腺上皮细胞cDNA文库 ,获得编码相互作用蛋白的基因 ,采用免疫共沉淀、哺乳细胞双杂交和荧光酶测定等方法进一步验证蛋白间相互作用和功能联系 .结果 :采用酵母双杂交系统筛选 ,获得了多个编码BRCA2相互作用蛋白的基因 ,其中包括已知的FHL2蛋白 ;免疫共沉淀和哺乳动物细胞双杂交试验显示BRCA2和FHL2在体内特异性结合 ,并证实FHL2在体内形成同源二聚体 ;转录活性分析发现BRCA2与FHL2有协同转录激活作用 .结论 :发现BRCA2与FHL2蛋白间相互作用和功能联系。

关键词：乳腺肿瘤基因抑制肿瘤 BRCA2 酵母双杂交 FHL2

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抗BACP1抗体的制备及鉴定

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第四军医大学学报 2004年第1期25卷 30-33页

作者：白玉杰 SRINIVASAN seetha BAND Vamla 高庆生第四军医大学全军基因诊断技术研究所陕西西安710033 塔夫茨大学医学院放射肿瘤研究所美国波士顿02100

目的 :制备抗BACP1多克隆抗体并鉴定其特异性 ,用于BACP1蛋白定位及功能研究 .方法 :大肠杆菌表达GST BACP1融合蛋白 ,采用纯化蛋白免疫新西兰大白兔制备抗血清 .采用WesternBlot和间接免疫荧光染色等方法鉴定抗体的特异性 .结果 :抗BA... 详细信息

目的 :制备抗BACP1多克隆抗体并鉴定其特异性 ,用于BACP1蛋白定位及功能研究 .方法 :大肠杆菌表达GST BACP1融合蛋白 ,采用纯化蛋白免疫新西兰大白兔制备抗血清 .采用WesternBlot和间接免疫荧光染色等方法鉴定抗体的特异性 .结果 :抗BACP1抗体用于WesternBlot和间接免疫荧光染色均可特异性识别BACP1蛋白 ,具有较高的特异性 .结论 :所制备的多克隆抗体具有较高特异性。

关键词：乳腺癌抑癌基因乳腺癌易感基因抗体

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Introduction of Compressive Residual Stress by Means of Cavitation Peening into a Titanium Alloy Rod Used for Spinal Implants

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Materials Sciences and Applications 2013年第7期4卷 23-28页

作者： Osamu Takakuwa Amrinder S. Gill Gokul Ramakrishnan seetha R. Mannava Vijay K. Vasudevan Hitoshi Soyama Department of Nanomechanics Tohoku University Sendai Japan School of Dynamic Systems University of Cincinnati Cincinnati USA

The introduction of compressive residual stress is an effective way to reduce fretting fatigue and fretting wear between a spinal implant rod and its holding fixture. The objective of this paper is to demonstrate that cavitation peening can introduce compressive residual stress into the surface of a spinal implant rod manufactured from medical grade titanium alloy Ti-6Al-4V, which has already been processed by glass shot peening. In order to apply the cavitation peening for the small rod, whose diameter is only 5.5 mm, the cavitating region was concentrated by increasing the ambient pressure. The depth profiles of the resulting residual stress were evaluated by X-ray diffraction following layer removal by electropolishing. The results show that cavitation peening creates compressive residual stress deeper into the rod, even though the stress value at the near surface is saturated due to initial processing using glass shot peening. The depth of the compressive residual stress continuously increases from 44 μm to 230 μm with an increase in the cavitation peening processing time. In addition, the full width at half maximum value of the X-ray diffraction profile, which is closely related to the micro-strain, decreases by up to 32% following the application of cavitation peening.

关键词： Compressive Residual Stress Fretting Titanium Alloy Cavitation Peening Spinal Implant Rod

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巴西橡胶树的褐皮病

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云南热作科技 1989年第4期12卷 42-43页

作者： seetha I.WICKREMASINGHE 郭亚钢

褐皮病简称死皮,现已成为多数植胶国橡胶园的一个严重问题。虽然一些人称之为病害,但迄今为止尚未发现与褐皮病有关的病毒或真菌一类的病原体(Liyanage等,1982)。人们更普遍地认为是胶树树皮生理失凋。

关键词：橡胶树褐皮病巴西橡胶

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GENETIC VARIATION OF ABO AND RH(D) BLOOD GROUPS AMONG THE BRAHMINS OF COASTAL ANDHRA PRADESH,INDIA

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Medical Bulletin of Shanghai Jiaotong University 2011年第1期23卷 46-49页

作者： Deva seetha Ramayya Sudharsan Prakash Nedunuri Divya Sundari Indukuri Kumudini Golla Kavita Marita Anirban Dasgupta Chittipothula Satyanarayana Department of Biotechnology Godavari Institute of Engineering and TechnologyRajahmundry 533296Andhra PradeshIndia Department of Physiology Ganni Subba Lakshmi Medical CollegeRajahmundry 533294Andhra PradeshIndia Department of Anatomy Konaseema Institute of Medical SciencesAmalapuram 533201Andhra PradeshIndia Department of Computer Sciences Jawaharlal Nehru Technological UniversityKakinada 533003Andhra PradeshIndia

The paper reported the phenotype and allele frequency distribution of ABO and Rh(D) blood groups among Brahmin,an endogamous population from Visakhapatnam district,Andhra Pradesh,*** samples of 100 unrelated Brahmin individuals were screened for ABO and Rh(D) blood *** order of occurrence of ABO phenotypes was O>A>*** corresponding allele frequencies were 0.530,0.315,and 0.155,*** allele frequency of D (0.990) was more than d (0.010).The results were compared with the other caste population to understand the population variations.

关键词： blood group polymorphism genetic variation Andhra castes India

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