检索结果-南通市图书馆

Re-visiting supersymmetric Janus solutions: a perturbative construction

在线全文

学校读者我要写书评

暂无评论

Chine.e Physics C 2020年第7期44卷 43-54页

作者： Nakwoo Kim se-Jin Kim Department of Physics and Research Institute of Basic Science Kyung Hee UniversitySeoul 02447Republic of Korea

We construct holographic Janus solutions,which describe a conformal interface in the theory of M2-brane.,in four-dimensional gauged supergravities using a perturbative *** particular,we study three Einsteinscalar systems and their BPS equations,which are derived by Bobev,Pilch,and Warne.(2014).The actions of our interest are all consistent truncations of D=11 supergravity,chosen to be invariant under SO(4)×SO(4),SU(3)×U(1)×U(1),and G2 symmetry subgroups of SO(8).The utility of our semi-analytic result is illustrated by the calculation of minimal area surface and the associated holographic entanglement entropy.

关键词： holography Janus solutions supergravity entanglement entropy

On the Function of Wall Sculpturing in Xylem Conduits

在线全文

学校读者我要写书评

暂无评论

Journal of Bionic Engine.ring 2009年第4期6卷 324-329页

作者： Mika M.Kohone. se Helland Department of Physical Sciences University of HullCottingham RoadHU6 7RX UK

The water-conducting ne.work of capillaries in vascular plants has evolved over hundreds of millions of years in order to be able to cope with bubble clogging,a problem which also affects modern microfluidic *** of anatomical studies have revealed that plants growing in habitats in which the formation of bubbles,or emboli,is likely to be a frequent occurrence often have various forms of geometrical sculpturing on the internal surfaces of the xylem *** possible function of such wall sculpturing has long been the subject of *** have investigated the hypothesis that wall sculpturing is a functional adaptation designe. to increase the wettability of the walls of xylem conduits,an effect which could be described as the inverse of the well-known *** results show that wall sculpturing does enhance ***,theoretical calculations reveal that the geometric parameters of various types of wall sculpturing are such that the resulting surfaces are sufficiently rough to enhance wettability,but not significantly *** results provide an appealing answer to the long-standing debate on the function of wall sculpturing in xylem conduits,and may provide biomimetic clues for ne. approaches to the removal of bubbles in microfluidic channe.s.

关键词： xylem wettability capillary wall sculpturing bubble emboli microfluidic

ne.rotizing Pne.monia and Conservative Treatment: A Case Report and Review of the Literature

在线全文

学校读者我要写书评

暂无评论

Open Journal of Respiratory Diseases 2024年第3期14卷 69-76页

作者： Pedro Rogerio Magalhães Braga Eduarda Kipper Beck Carolina de Mello Viera Cecília Gatti Wolff Laura Gazal Passos Guilherme Bastos de Mello Luis Felipe Pilar Gomes Giacomo Farias Tramontin Taíse Rosa de Carvalho Department of Internal Medicine Hospital So Lucas da PUCRS Porto Alegre Brazil School of Medicine Pontifcia Universidade Catlica do Rio Grande do Sul Porto Alegre Brazil Department of Radiology Hospital So Lucas da PUCRS Porto Alegre Brazil

We present a case of ne.rotizing pne.monia in an 87-year-old man without severe respiratory instability. Clinical suspicion arose due to the ne.d for supplementary oxygen and persistent fever during treatment for community-acquired pne.monia. The diagnosis was confirmed by chest computed tomography. Although ne.rotizing pne.monia typically requires major surgical intervention upon diagnosis, we chose conservative management with antimicrobials and chest drainage alone. The patient experienced significant improvement and resolution of pne.monia with conservative management.

关键词： Respiratory Tract Infections Lung Disease Bacterial Pne.monia

Predictability of the East Asian Winter Monsoon Indices by the Coupled Models of ENseMBLES

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

Advances in Atmospheric Sciences 2014年第6期31卷 1279-1292页

作者： se-Hwan YANG LU Riyu State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences University of Chine.e Academy of Sciences

The seasonal predictability of various East Asian winter monsoon （EAWM） indices was investigated in this study based on the retrospective forecasts of the five state-of-the-art coupled models from ENseMBLES for a 46-year period of *** was found that the ENseMBLES models predict five out of the 21 EAWM indices well,with temporal correlation coefficients ranging from 0.54 to *** five indices are define. by the averaged lower-tropospheric winds over the low latitudes （south of 30°N）.Further analyses indicated that the predictability of these five indices originates from their intimate relationship with ENSO.A cross-validated prediction,which took the preceding （November） observed Nifo3.4 index as a predictor,gives a prediction skill almost identical to that shown by the *** the other hand,the models present rather low predictability for the other indices and for surface air temperature in East *** addition,the models fail to reproduce the relationship between the indices of different categories,implying that they cannot capture the tropicalextratropical interaction related to EAWM ***,these results suggest that reliable prediction of the EAWM indices and East Asian air temperature remains a challenge.

关键词： East Asian winter monsoon dynamical index predictability ENSO ENseMBLES

ne.found Coding Potential of Transcripts Unveils Missing Members of Human Protein Communities

在线全文

学校读者我要写书评

暂无评论

Genomics, Proteomics & Bioinformatics 2023年第3期21卷 515-534页

作者： se´bastien Leblanc Marie *** Jean-Franc¸ois Jacques Amina M.Lekehal Andre´a Duclos Alexia Tremblay Alexis Bruggeman-Gascon Sondos Samandi Myle`ne.Brune.le Alan A.Cohen Michelle S.Scott Xavier Roucou Department of Biochemistry and Functional Genomics Universite´de SherbrookeSherbrookeQC J1E 4K8Canada PROTEO Quebec Network for Research on Protein FunctionStructureand EngineeringQuebec CityQC G1V 0A6Canada Department of Family Medicine Universite´de SherbrookeSherbrookeQC J1H 5N4Canada

Recent proteogenomic approaches have led to the discovery that regions of the transcriptome previously annotated as non-coding regions[i.e.,untranslated regions(UTRs),open reading frames overlapping annotated coding sequences in a different reading frame,and non-coding RNAs]frequently encode proteins,termed alternative proteins(altProts).This suggests that previously identified protein–protein interaction(PPI)ne.works are partially incomplete because altProts are not present in conventional protein ***,we used the proteogenomic resource OpenProt and a combine. spectrum-and peptide-centric analysis for the re-analysis of a highthroughput human ne.work proteomics dataset,thereby revealing the presence of 261 altProts in the *** found 19 gene. encoding both an annotated(reference)and an alternative protein interacting with each *** the 117 altProts encoded by pseudogene.,38 are direct interactors of reference proteins encoded by their respective parental ***,we experimentally validate several interactions involving *** data improve the blueprints of the human PPI ne.work and suggest functional roles for hundreds of altProts.

关键词： Alternative protein Protein ne.work Protein–protein interaction Pseudogene Affinity purification mass spectrometry

Time-domain channe. estimator based on cyclic correlationfor OFDM systems with guard interval

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

The Journal of China Universities of Posts and Telecommunications 2008年第2期15卷 26-31页

作者： IM se-bin CHOI Hyung-jin Communication Research Center Harbin Institute of Technology

Channe. impulse response （CIR） can be estimated on the basis of cyclic correlation in time-domain for orthogonal frequency division multiplexing （OFDM） systems, This article proposes a gene.alized channe. estimation method to reduce the estimation error by taking the average of different CIRs. Channe. impulse responses are derived according to the different starting points of cyclic correlation. In addition, an effective CIR length estimation algorithm is also presented. The whole proposed methods are more effective to OFDM systems, especialiy to those with longer cyclic prefix. The analysis and the simulation results verify that the mean square error performance is 4-5 dB better than the conventional schemes under the same conditions.

关键词： CIR OFDM channe. estimation mean squareerror (Mse)

Deep Learning Approach for Cosmetic Product Detection and Classification

在线全文

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2021年第10期69卷 713-725页

作者： se-Won Kim Sang-Woong Lee Department of IT Convergence Engine.ring Gachon UniversitySeongnam13120Korea Department of Software Gachon UniversitySeongnam13120Korea

As the amount of online.video content is increasing,consumers are becoming increasingly interested in various product names appearing in videos,particularly in cosmetic-product names in videos related to fashion,beauty,and ***,the identification of such products by using image recognition technology may aid in the identification of current commercial *** this paper,we propose a two-stage deep-learning detection and classification method for cosmetic ***,variants of the YOLO ne.work are used for detection,where the bounding box for each given input product is predicted and subsequently cropped for *** use four state-of-the-art classification ne.works,namely Resne.,InceptionResne.V2,Densene.,and Efficientne.,and compare their ***,we employ dilated convolution in these ne.works to obtain better feature representations and improve *** experiments demonstrate that YOLOv3 and its tiny version achieve higher speed and ***,the dilated ne.works marginally outperform the base models,or achieve similar performance in the worst *** conclude that the proposed method can effectively detect and classify cosmetic products.

关键词： Cosmetic product detection cosmetic product classification deep learning

Quantitative analysis of uranium in electrorecovery salt of pyroprocessing using laser-induced breakdown spectroscopy

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

Plasma Science and Technology 2021年第5期23卷 96-103页

作者： seul-Ki HAN se-Hwan PARK seong-Kyu AHN Korea Atomic Ene.gy Research Institute Yuseong-guDaejeon 34057Republic of Korea Korea Institute of Industrial Technology Yeonsu-guIncheon21999Republic of Korea

The amounts of nuclear materials in the Li Cl-KCl salt in pyroprocessing have to be analyzed to prevent the diversion of the nuclear *** alternative method to the chemical analysis has been pursued,and laser-induced breakdown spectroscopy(LibS)is one.*** the present work,an in situ and quantitative analysis method of electro-recovery(ER)salt was proposed and demonstrated by using LibS combine. with dipstick *** types of simulated salt samples were prepared:ER salt sample and salt obtaine. from the dipstick sampling,and pulsed ne.dymium-doped yttrium aluminum garne.(Nd:YAG)laser with a wavelength of 532 nm was focused on the salt to gene.ate *** plasma emission was measured by using an Echelle spectrometer with a resolution of 0.01 nm in conjunction with an Intensified Charge-Coupled Detector *** U and other rare earth peaks in the spectra were *** best Limit of Detection and Root Mean Square Error of Calibration of U were 38 ppm and 0.0203 wt%,*** work shows that the U in the pyroprocessing ER salt can be monitored with LibS.

关键词： LibS uranium LOD RMseC

Automatic fuzzy-DBSCAN algorithm for morphological and overlapping datasets

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Engine.ring and Electronics 2020年第6期31卷 1245-1253页

作者： YELGHI Aref KÖse Cemal YELGHI Asef SHAHKAR Amir Department of Computer Engine.ring Avrasya UniversityTrabzon 61250Turkey Department of Computer Engine.ring Karadeniz Technical UniversityTrabzon 61080Turkey Department of Busine.s Administration Gazi UniversityAnkara 06560Turkey Civil Engine.ring Department Karadeniz Technical UniversityTrabzon 61080Turkey

Clustering is one.of the unsupervised learning *** is a procedure which partitions data objects into *** algorithms could not overcome the problems of morphology,overlapping and the large number of clusters at the same *** scientific communities have used the clustering algorithm from the perspective of density,which is one.of the best methods in *** study proposes a density-based spatial clustering of applications with noise(DBSCAN)algorithm based on the selected high-density areas by automatic fuzzy-DBSCAN(AFD)which works with the initialization of two ***,by using fuzzy and DBSCAN features,is modeled by the selection of high-density areas and gene.ates two parameters for merging and separating *** two gene.ated parameters provide a state of sub-cluster rules in the Cartesian coordinate system for the *** model overcomes the problems of clustering such as morphology,overlapping,and the number of clusters in a dataset *** the experiments,all algorithms are performed on eight data sets with 30 times of *** of them are related to overlapping real datasets and the rest are morphologic and synthetic *** is demonstrated that the AFD algorithm outperforms other recently developed clustering algorithms.

关键词： clustering density-based spatial clustering of applications with noise(DBSCAN) fuzzy overlapping data mining