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Mass excess of ^(69)Br and the rp process

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Chinese Physics C 2015年第9期39卷 55-57页

作者： M.s.Antony J.-B.Bueb Résidence Einstein 11 rue de Klingenthal

The proton separation energy sp of -786.07±11.49 keV has been evaluated for 69Br from a least squares fit of mass difference of analog states versus α/A1/3, where a is the average charge of the mirror nuclei and A is the mass number. The extracted sp value is indicative of the rapid proton-capture process rp, and subsequent Type I X-ray bursts.

关键词： proton separation energy rapid proton-capture type I X-ray bursts analog levels

Credit Card Fraud Detection Using Improved Deep Learning Models

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Computers, Materials & Continua 2024年第1期78卷 1049-1069页

作者： sumaya s.sulaiman Ibraheem Nadher sarab M.Hameed Computer science Department Al-Mustansiriya UniversityBaghdad10001Iraq Computer science Department University of BaghdadBaghdad10001Iraq Faculty of Basic Education Al-Mustansiriya UniversityBaghdad10001Iraq

Fraud of credit cards is a major issue for financial organizations and *** fraudulent actions become more complex,a demand for better fraud detection systems is *** learning approaches have shown promise in several fields,including detecting credit card ***,the efficacy of these models is heavily dependent on the careful selection of appropriate *** paper introduces models that integrate deep learning models with hyperparameter tuning techniques to learn the patterns and relationships within credit card transaction data,thereby improving fraud *** deep learning models:AutoEncoder(AE),Convolution Neural Network(CNN),and Long short-Term Memory(LsTM)are proposed to investigate how hyperparameter adjustment impacts the efficacy of deep learning models used to identify credit card *** experiments conducted on a European credit card fraud dataset using different hyperparameters and three deep learning models demonstrate that the proposed models achieve a tradeoff between detection rate and precision,leading these models to be effective in accurately predicting credit card *** results demonstrate that LsTM significantly outperformed AE and CNN in terms of accuracy(99.2%),detection rate(93.3%),and area under the curve(96.3%).These proposed models have surpassed those of existing studies and are expected to make a significant contribution to the field of credit card fraud detection.

关键词： Card fraud detection hyperparameter tuning deep learning autoencoder convolution neural network long short-term memory resampling

Bearing capacity and settlement of strip footing on geosynthetic reinforced clayey slopes

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Journal of Central south University 2012年第4期19卷 1116-1124页

作者： s.A.Naeini B.Khadem Rabe E.Mahmoodi Department of Civil Engineering Imam Khomeini International UniversityQazvin 16818-34149Iran

The effect of geosynthetic reinforcing on bearing capacity of a strip footing resting on georeinforced clayey slopes was *** results of a series of numerical study using finite element analyses on strip footing upon both reinforced and unreinforced clayey slopes were *** objectives of this work are to:1) determine the influence of reinforcement on the bearing-capacity of the strip footings adjacent slopes,2) suggest an optimum number of reinforcement and 3) survey the effect of friction angle in clayey soils reinforced by *** investigations were carried out by varying the edge distance of the footing from *** different numbers of geosynthetic layers were applied to obtaining the maximum bearing capacity and minimum *** achieve the third objective,two different friction angles were *** results show that the load?settlement behavior and ultimate bearing capacity of footing can be considerably improved by the inclusion of reinforcing *** using more than one layer reinforcement,the ultimate bearing capacity does not change *** is also shown that for both reinforced and unreinforced slopes,the bearing capacity increases with an increase in edge *** addition,as the soil friction angle is increased,the efficiency of reinforcing reduces.

关键词： geosynthetic reinforcing numerical analysis bearing capacity strip footing clayey slope friction angle

seismic Performance Assessment of a Conventional Multi-storey Building

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International Journal of Disaster Risk science 2017年第3期8卷 237-245页

作者： Giuseppe Marcantonio Del Gobbo Martin s.Williams Anthony Blakeborough Department of Engineering science University of OxfordOxford OX1 3PJUK

Recent earthquakes have revealed that conventional seismic design philosophy allows for large levels of nonstructural damage. Nonstructural earthquake damage results in extensive repair costs and lengthy functional disruptions, as nonstructural systems comprise the majority of building investment and are essential to building operations. A better understanding of the expected overall seismic performance of code-compliant buildings is needed. This study investigates the seismic performance of a conventional building. A 16-storey steel office building was designed using a modern seismic structural code(Eurocode 8). This study is the first to assess in detail the substantial earthquake repair costs expected in a modern Eurocode concentric braced frame structure, considering nonstructural systems with the FEMA P-58 procedure. The breakdown of total repair costs by engineering demand parameter and by fragility group is novel. The seismic performance assessment indicated that substantial earthquake repair costs are expected. Limitations of the Eurocode nonstructural damage methodology were revealed in a novel manner using FEMA P-58, as the prescribed drift limits did not minimize nonstructural repair costs. These findings demonstrate the need for design procedures that improve nonstructural seismic performance. The study results provide a benchmark on which to evaluate retrofit alternatives for existing buildings and design options for new structures.

关键词： Eurocode 8 FEMA P-58 Nonstructural systems seismic performance assessment

Influence of cornicle droplet secretions of the cabbage aphid, Brevicoryne brassicae, on parasitism behavior of na＇fve and experienced Diaeretiella rapae

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Insect science 2014年第1期21卷 56-64页

作者： Hamid R. s. Moayerit Arash Rasekh Annie Enkegaard Department of Plant Protection Faculty of Agriculture Research Institute of Physiology and Biotechnology University of Zanjan Department of Plant Protection College of Agriculture Shahid Chamran University of Ahvaz Ahvaz Iran Department of Agroe- cology Science and Technology Aarhus University Research Centre Flakkebjerg 4200 Slagelse Denmark

Insects have evolved amazing methods of defense to ward off enemies. Many aphids release cornicle secretions when attacked by predators and parasitoids. These se cretions contain an alarm pheromone that alerts other colony members of danger, thereby providing indirect fitness benefits to the releaser. In addition, contact with cornicle se cretions could also threaten an attacker and could provide direct fitness to the releaser. However, cornicle secretions may also be recruited as a kairomonal cue by aphid natural enemies. In this study, we investigated the effect of the cornicle droplet volatiles of the cabbage aphid, Brevicoryne brassicae （L.）, on the hostsearching behavior of naive and experienced female Diaeretiella rapae （M＇Intosh） parasitoids in olfactometer studies. In addition, we evaluated the role ofB. brassicae cornicle droplets on the oviposition prefer ence of the parasitoid in a twochoice bioassay. Naive females did not exhibit any preference between volatiles from aphids secreting cornicle droplets over nonsecreting aphids, while experienced parasitoids exploited the secretions in their host location. Experienced females were also able to choose volatiles from both secreting and nonsecreting aphids over clean air, while this ability was not observed in naive females. Although secretion of cornicle droplets did not influence the percentage of first attack in either naive or experienced females, the success of attack （i.e. resulting in a larva） was significantly different between secreting and nonsecreting aphids in the case of experienced parasitoids.

关键词： alarm pheromone kairomone learning oviposition preference physiologi-cal cost Y-tube olfactometer

Fundamental studies on enhancement and blinking mechanism of surface-enhanced Raman scattering （sERs） and basic applications of sERs biological sensing

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Frontiers of physics 2014年第1期9卷 31-46页

作者： Yuko s. Yamamoto Mitsuru Ishikawa Yukihiro Ozaki Tamitake Itoh Nano-Bioanalysis Research Group Health Research Institute National Institute of Advanced Industrial Science and Technology (AIST) Takamatsu Kagawa 761-0395 Japan Department of Chemistry Josai University Itado Saitama 350-0295 Japan Department of Chemistry School of Science and Technology Kwansei Gakuin University Sanda Hyogo 669-1337 Japan

We review recent our results in the fundamental study of surface-enhanced Raman scattering （sERs） with emphasis on experiments that attempted to identify the enhancement and blinking mechanism using single Ag nanoparticle dimers attached to dye molecules. These results are quantitatively discussed in the framework of electromagnetic mechanism. We also review recent our results in basic sERs applications for biological sensing regarding detections of cell surface molecules and distinction of disease marker molecules under single cell and single molecule level.

关键词： plasmonics surface-enhanced Raman scattering (sERs) surface-enhanced fluorescence,Ag nanoparticle

Dynamic response in two-dimensional transversely isotropic thick plate with spatially varying heat sources and body forces

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Applied Mathematics and Mechanics(English Edition) 2011年第10期32卷 1315-1332页

作者： M.IsLAM s.H.MALLIK M.KANORIA Department of Mathematics St. Xavier's College (Evening) Kolkata 700016 India Department of Mathematics Aliah University Kolkata 700091 India Department of Applied Mathematics University of Calcutta Kolkata 700009 India

This paper deals with a two-dimensional （2D） problem for a transverselyisotropic thick plate having heat sources and body forces. The upper surface of the plate is stress free with the prescribed surface temperature, while the lower surface of the plate rests on a rigid foundation and is thermally insulated. The study is carried out in the context of the generalized thermoelasticity proposed by Green and Naghdi. The governing equations for displacement and temperature fields are obtained in the Laplace-Fourier transform domain by applying the Laplace and Fourier transforms. The inversion of the double transform is done numerically. Numerical inversion of the Laplace transform is done based on the Fourier series expansion. Numerical computations are carried out for magnesium （Mg）, and the results are presented graphically. The results for an isotropic material （Cu） are obtained numerically and presented graphically to be compared with those of a transversely isotropic material （Mg）. The effect of the body forces is also studied.

关键词： generalized thermoelasticity Green-Naghdi model transversely isotropic material spatially varying heat source body force

THERMODYNAMICs sTUDY ON THE DECOMPOsITION OF CHROMITE WITH KOH

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Acta Metallurgica sinica(English Letters) 2007年第3期20卷 187-192页

作者： Z. sun s.L. Zheng Y. Zhang Institute of Process Engineering Chinese Academy of Sciences Beijing 100080 China Graduate University of the Chinese Academy of sciences Beijing 100049 China

Institute of Process Engineering, Chinese Academy of sciences, China, has proposed a method for oxidative leaching of chromite with potassium hydroxide. Understanding the mechanism of chromite decomposition, especially in the potassium hydroxide fusion, is important for the optimization of the operating parameters of the oxidative leaching process. A traditional thermodynamic method is proposed and the thermal decomposition and the reaction decomposition during the oxidative leaching of chromite with KOH and oxygen is discussed, which suggests that chromite is mainly destroyed by reactions with KOH and oxygen. Meanwhile, equilibrium of the main reactions of the above process was calculated at different temperatures and oxygen partial pressures. The stable zones of productions, namely, K2CrO4 and Fe2O3, increase with the decrease of temperature, which indicates that higher temperature is not beneficial to thermodynamic reactions. In addition, a comparison of the general alkali methods is carried out, and it is concluded that the KOH leaching process is thermodynamically superior to the conventional chromate production process.

关键词： chromite KOH thermodynamics decomposition

Full Duplex Media Access Control Protocol for Multihop Network Computing

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Computer systems science & Engineering 2023年第1期44卷 297-309页

作者： J.Avila selvi Therase s.Allwin A.Ahilan Department of CsE Infant Jesus College EngineeringThoothukudiTamil Nadu628851India Department of ECE PSN College of Engineering and TechnologyMelathediyoorTamil Nadu627152India

Intelligent communication technologies beyond the network are pro-posed by using a new full-duplex *** Media Access Control(MAC)is a data interaction network protocol,which outperforms the IEEE *** research discusses the planning and execution of full-duplex(FD)pipeline MAC protocol for multihop wireless networks(MWN).The design uses a com-bination of Radio frequency and baseband methods to realize full-duplexing with smallest impact on cross layer *** execution and trial results specify that Pipeline Media Access Control(PiMAC)protocol considerably develops net-work implementation in terms of transmission protocol(TP)and transmission *** advantage of using FD-MAC will increase the range of *** takes benefit of the FD mode of the antenna,which outperforms additionally 80%for all assessed *** this analysis,it was considered of that Psz=8184 bits and Rc=1Mbps;that’s,T_(DATA) represents an excellent portion of total *** on real nodes displays that the FD theme achieves a median gain of 90%in mix-ture throughput as equated to half-duplex(HD)theme for *** energy con-sumption of proposed system method is 29.8%reduced when compared with existing system method.

关键词： Beyondfifth-generation(B5G) FD MAC wi-finetworks wireless relay network multihop wireless networks