1281   Probabilistic framework for embedded face and facial expression recognition Probabilistic framework for embedded face and facial expression recognition    1999 We present a Bayesian recognition framework in which a model of the whole face is enhanced by models of facial feature position and appearances. Face recognition and facial expression recognition are carried out using maximum likelihood decisions. The algorithm finds the model and facial expression that maximizes the likelihood of a test image. In this framework, facial appearance matching is improved by facial expression matching. Also, changes in facial features due to expressions are used tog... 查看全文

1282   A Monomeric Bis(arena)lead(II) Complex with a Plumbocene-like Bent Sandwich Structural Unit — Structure of [Pb(1,2-C6H4Me2)2(AlCl4)2† A Monomeric Bis(arena)lead(II) Complex with a Plumbocene-like Bent Sandwich Structural Unit — Structure of [Pb(1,2-C6H4Me2)2(AlCl4)2† W. Cooper    2006 Bis(o-xylene)lead(II) bis(tetrachloroaluminate), obtained from lead(II) chloride and aluminium trichloride in o-xylene, has been shown by X-ray crystallography to be a mononuclear lead complex with point group symmetry C2 The two aromatic ligands are arranged similarly to those in monomeric plumbocene. The coordination sphere is completed by two bidentate AlCl4−ions. The lead center uses about a quarter of its bonding capability for each of the four ligands 查看全文

1283   LBP feature extraction for facial expression recognition LBP feature extraction for facial expression recognition    2011 The study of facial feature extraction based on Local Binary Patterns (LBP) is presented in this paper. As a nonparametric and computationally simple descriptor, LBP is broadly used in facial expression recognition for its invariant to monotonic grayscale transformation. First, the LBP descriptor is presented followed with the facial expression recognition framework using LBP. Aim for the facial expression recognition, the characters of global and local facial feature are analyzed. Then several ... 查看全文

1284   Nanostrukturierte Oberflchen Optimierung der Langzeitbestndigkeit struktureller Aluminiumklebungen Nanostrukturierte Oberflchen Optimierung der Langzeitbestndigkeit struktureller Aluminiumklebungen E. Alfredo, S. R. C. Silva, J. E. V. Ozoacute;rio, M. D. Sousa-Neto, A. Brugnera-Juacute;nior and Y.    2009 Aluminiumknetlegierungen werden beispielsweise im Rahmen von Leichtbaukonzepten aufgrund ihres günstigen Festigkeits-Gewichts-Verhltnisses, aber auch wegen ihrer Korrosionsbestndigkeit und guter Umformbarkeit eingesetzt. Die Klebtechnik stellt in diesem Zusammenhang – wie aus der Luftfahrt- und Automobilindustrie hinlnglich bekannt – ein ebenso adquates wie innovatives Fügeverfahren dar. 查看全文

1285   Aspect of adhesion 6. Edited by D. J. Alner. University of London Press, London. 1971. pp. 149. £3.45 Aspect of adhesion 6. Edited by D. J. Alner. University of London Press, London. 1971. pp. 149. £3.45 A. M. Venezia, D. Duca, M. A. Floriano, G. Deganello and A. Rossi    2007 查看全文

1286   The use of a ‘bleach-etch-seal’ deproteinization technique on MIH affected enamel The use of a ‘bleach-etch-seal’ deproteinization technique on MIH affected enamel M. SADEGHI, C. D. LYNCH and N. SHAHAMAT    2012 International Journal of Paediatric Dentistry 2012 查看全文

1287   Robust facial expression recognition under occlusion condition Robust facial expression recognition under occlusion condition    2010 A novel method for facial expression recognition which is robust to facial occlusion was proposed. Firstly, the face to be recognized is reconstructed using robust principal component analysis(RPCA), and saliency detection was used on the difference image of reconstructed face and the face to be recognized to obtain the facial occlusion region. Secondly, facial occlusion region of the face to be recognized was reconstructed by the reconstructed face using RPCA, and a novel reweighted AdaBoost cl... 查看全文

1288   A “PAC” Algorithm for Making Feature Maps A “PAC” Algorithm for Making Feature Maps Philip Laird;Evan Gamble    1991 Kohonen and others have devised network algorithms for computing so-called topological feature maps. We describe a new algorithm, called the CDF-Inversion(CDFI) Algorithm, that can be used to learn feature maps and, in the process, approximate an unknown probability distribution to within any specified accuracy. The primary advantages of the algorithm over previous feature-map algorithms are that it is simple enough to analyze mathematically for correctness and efficiency, and that it distribute... 查看全文

1289   Radioisotope derivative procedure for determination of epinephrine or norepinephrine Radioisotope derivative procedure for determination of epinephrine or norepinephrine Walter J. Blaedel, Thomas Jon Anderson    1971 查看全文

1290   Bonding of a mica-based castable ceramic material with a tri-n-butylborane-initiated adhesive resin Bonding of a mica-based castable ceramic material with a tri-n-butylborane-initiated adhesive resin G. Tsamasphyros, K. Kalkanis, P. Maroulas, G. I. Anthoulis and O. Grigoryeva    2007 SUMMARY Adhesive bonding of a mica-based castable ceramic material (Olympus Castable Ceramics, OCC) was evaluated in vitro with the use of a silane primer in conjunction with an adhesive luting material. The primer contained a silane coupler and 4-methacryloxyethyl trimellitate anhydride (4-META), while the methyl methacrylate (MMA)-based luting agent was initiated with a tri-n-butylborane derivative (TBB) and contained 4-META. (4-META/MMA-TBB resin). Ceramic specimens were sanded with No.... 查看全文

1291   Investigations on Semi-solid Joined Steel Components and their Bonding Quality Investigations on Semi-solid Joined Steel Components and their Bonding Quality G. Tsamasphyros, K. Kalkanis, P. Maroulas, G. I. Anthoulis and O. Grigoryeva    2010 To characterise the bonding quality of semi-solid joined components, fundamental investigations were carried out by producing composite test specimens. By using steel as a semi-solid base matrix and different steel or copper alloys as inserted materials, an interesting field of material combinations was realised. Two different steel grades, the cold forming tool steel X210CrW12 and the bearing steel 100Cr6, were chosen as the material of the base matrix. Geometry variations were tested along wit... 查看全文

1292   A photon transmission study for film formation from poly(vinyl acetate) latex particles with different molecular weights A photon transmission study for film formation from poly(vinyl acetate) latex particles with different molecular weights Pablo Armas, Sofiacute;a Nasif and Nora B. Calcaterra    2007 The photon transmission technique was used to monitor the temperature evolution of film formation from poly(vinyl acetate) (PVAc) latex particles with two different molecular weights. Two sets of latex films were prepared below the glass transition temperature (Tg) of PVAc, which are named as low (LM) and high molecular weight (HM) films. These films were annealed at elevated temperatures above the Tg of PVAc for various time intervals. It is observed that transmitted photon intensity (Itr) from... 查看全文

1293   Static SIMS using a cameca ims 3f Static SIMS using a cameca ims 3f    2004 查看全文

1294   Improvement in strength of the aluminium/epoxy bonding joint by modification of the interphase Improvement in strength of the aluminium/epoxy bonding joint by modification of the interphase Iris Maege, Evelin Jaehne, Axel Henke, Hans-Juergen P. Adler, Christian Bram, Christian Jung and Mar    2004 This contribution describes the influence of different surface pre-treatments including self-assembly of phosphoric acid mono alkyl ester as adhesion promoter (AP) for adhesive bonding of aluminium alloy AlMg3. The investigations were performed using a cold hardening two components epoxy-adhesive. The pre-treated surfaces, the interphase structures and the joints were characterized by: SEM/EDX, surface tension, XPS, DMA and the determination of mechanical parameters. The results interestingly sh... 查看全文

1295   Cagle, Ch. V.: Handbook of Adhesive Bonding (Handbuch der Klebstoffbindung). Consulting Editors Henry Lee and Kris Neville. McGraw-Hill Book Company, New York 1973, 754 Seiten, 340 Abbildungen, Preis Cagle, Ch. V.: Handbook of Adhesive Bonding (Handbuch der Klebstoffbindung). Consulting Editors Henry Lee and Kris Neville. McGraw-Hill Book Company, New York 1973, 754 Seiten, 340 Abbildungen, Preis Youn Cheol Kim and James Economy    2006 查看全文

1296   Real-time facial expression recognition in image sequences using an AdaBoost-based multi-classifier Real-time facial expression recognition in image sequences using an AdaBoost-based multi-classifier    2009 In this paper, a highly automatic facial expression recognition system without choosing characteristic blocks in advance is presented. The system is able to detect and locate"human faces in image sequences acquired in real environments.To achieve efficient facial expression recognition, we evaluate the performance of three different classifiers using multi-layer"perceptrons (MLPs), support vector machines (SVMs), andAdaboost algorithms (ABAs). From the experimental outcomes, we can observe that ... 查看全文

1297   Influence of the annealing temperature on CuAlxGa1−xSe2 thin films obtained by selenization Influence of the annealing temperature on CuAlxGa1−xSe2 thin films obtained by selenization Wei-Ning Wang, Soon-Gil Kim, I. Wuled Lenggoro and Kikuo Okuyama    2012 CuAlxGa1−xSe2 (CAGS) is an attractive wide-bandgap chalcopyrite for buffer and top cell in tandem solar cells avoiding the use of expensive In. Polycrystalline CAGS thin films with chalcopyrite structure and strongly oriented along the (112) plane have been obtained by a sequential process of vacuum evaporation and selenization, with different x values ranging from 0 to 1. The temperature of selenization has been varied between 450 and 550 °C and it has resulted on a critical pa... 查看全文

1298   Terpolymerization studies: IV. Terpolymerization of ethyl acrylate, ethyl -cyanocinnamate, and styrene Terpolymerization studies: IV. Terpolymerization of ethyl acrylate, ethyl -cyanocinnamate, and styrene Wendy Amass, Allan Amass and Brian Tighe    2003 A.D.A., P.O.B. 2250, Haifa, Israel 查看全文

1299   Asymmetric region local binary pattern operator for person-dependent facial expression recognition Asymmetric region local binary pattern operator for person-dependent facial expression recognition    2012 Automatic facial expression recognition analysis is a challenging area' which finds applications in human-computer interaction' human-robot interaction and online multimedia communication to name a few. From available Local Binary Pattern (LBP) variant operators' a single operator cannot take care of all properties such as scale' robustness and discriminative ability. It also does not have control on the length of the feature histogram obtained. This forces us to choose among LBP variant operato... 查看全文

1300   Preparation and some properties of stereocomplex-type poly(lactic acid)/layered silicate nanocomposites Preparation and some properties of stereocomplex-type poly(lactic acid)/layered silicate nanocomposites Dr. E. W. Fischer and Dr. G. F. Schmidt    2012 R&D Center, Tokyo Electric Power Company, 4-1 Egasaki-cho, Tsurumi-ku, Yokohama 230-8510, Japan 查看全文

1301   3D facial expression recognition using Zernike moments on depth images 3D facial expression recognition using Zernike moments on depth images    2011 In this paper we propose a new method for 3D facial expression recognition. We make use of the Zernike moments, which are calculated in the depth image of a 3D facial point cloud. Combining, the Zernike moments along with the 3D point clouds and the depth images, we succeed in tackling problems arising in facial expression recognition due to affine transformations of the data, such as translation, rotation and scaling which, in other approaches are considered very harmful in the overall accuracy... 查看全文

1302   Enhancement of Epoxy Resin/Copper Heterojunction by Introduction of Sulfur-Containing Polymers Enhancement of Epoxy Resin/Copper Heterojunction by Introduction of Sulfur-Containing Polymers Rafael Torregrosa-Coque and Joseacute; Miguel Martiacute;n-Martiacute;nez    2006 Summary: Epoxy resins are widely used in electronics and electric industries because of their superior properties. In recent years, excellent bonding properties for metals (e.g., copper, gold, aluminium, silver, etc.), to which it is hard to adhere, have become desirable for epoxy resins in the electric and electronics industrial fields. However, epoxy resins have only poor bonding strength to the metals. In order to increase the heterojunction strength between epoxy resins and copper, the intro... 查看全文

1303   Effect of intracanal irrigants on the bond strength of epoxy resin-based and methacrylate resin-based sealers to root canal walls Effect of intracanal irrigants on the bond strength of epoxy resin-based and methacrylate resin-based sealers to root canal walls    2011 Vilanova WV, Carvalho-Junior JR, Alfredo E, Sousa-Neto MD, Silva-Sousa YTC. Effect of intracanal irrigants on the bond strength of epoxy resin-based and methacrylate resin-based sealers to root canal walls. International Endodontic Journal, 45, 42–48, 2012. 查看全文

1304   The etched metal/composite resin interface The etched metal/composite resin interface    2009 This study examined the interface between composite resin and two electrolytically etched alloys using different etching times. A new technique allowed this interface to be tested under both tensile and shear loading. The resultant surface morphology of the etched metal was also examined. 查看全文

1305   ADP signaling in vascular endothelial cells: ADP-dependent activation of the endothelial isoform. of nitric-oxide synthase requires the expression but not the kinase activity of AMP-activated protein ADP signaling in vascular endothelial cells: ADP-dependent activation of the endothelial isoform. of nitric-oxide synthase requires the expression but not the kinase activity of AMP-activated protein    2009 ADP responses underlie therapeutic approaches to many cardiovascular diseases, and ADP receptor antagonists are in widespread clinical use. The role of ADP in platelet biology has been extensively studied, yet ADP signaling pathways in endothelial cells remain incompletely understood. We found that ADP promoted phosphorylation of the endothelial isoform. of nitric-oxide synthase (eNOS) at Ser1179 and Ser635 and dephosphorylation at Ser116 in cultured endothelial cells. Although eNOS activity was... 查看全文

1306   The effect of interfacial miscibility on the cell morphology of polyethylene terephthalate/bisphenol a polycarbonate blend foams The effect of interfacial miscibility on the cell morphology of polyethylene terephthalate/bisphenol a polycarbonate blend foams N. Hayashi, I. Sakamoto, T. Okada, H. Tanoue, H. Wakabayashi and T. Toriyama    2012 Annealing polyethylene terephthalate (PET)/polycarbonate (PC) blends enhance the transesterification reaction and increase the amount of copolymer at the interface of both polymers. The copolymer enhances the compatibility of PET with PC, because it contains both PET and PC blocks, which causes the interface between PET and PC to become fuzzy. When the PET/PC undergoes batch physical foaming with CO2, the copolymer significantly changes the resulting cell morphology, that is, the annealing time.... 查看全文

1307   Regulation of AMP-activated protein kinase by multisite phosphorylation in response to agents that elevate cellular cAMP Regulation of AMP-activated protein kinase by multisite phosphorylation in response to agents that elevate cellular cAMP    2006 The AMP-activated protein kinase (AMPK) and cAMP signaling systems are both key regulators of cellular metabolism. In this study, we show that AMPK activity is attenuated in response to cAMP-elevating agents through modulation of at least two of its α subunit phosphorylation sites, viz. α-Thr172 and α1-Ser485/ α2-Ser 491, in the clonal β-cell line INS-1 as well as in mouse embryonic fibroblasts and COS cells. Forskolin, isobutylmethylxanthine, and the glucose-depende... 查看全文

1308   Zea mays CCaMK: Autophosphorylation-dependent substrate phosphorylation and down-regulation by red light Zea mays CCaMK: Autophosphorylation-dependent substrate phosphorylation and down-regulation by red light    2001 The role of protein kinases has been extensively studied in various signal transduction pathways and they are one of the most important components that link the signal perception to the final response. However, not many studies have been reported, especially from the plant systems, that show the regulation pattern of the kinase itself under different conditions. A calcium/calmodulin-dependent protein kinase has already been purified and characterized from etiolated maize coleoptiles. In this pap... 查看全文

1309   AKAP220 protein organizes signaling elements that impact cell migration AKAP220 protein organizes signaling elements that impact cell migration    2011 Cell movement requires the coordinated reception, integration, and processing of intracellular signals.Wehave discovered that the protein kinase A anchoring protein AKAP220 interacts with the cytoskeletal scaffolding protein IQGAP1 to influence cell motility.AKAP220/IQGAP1networks receive and integrate calcium and cAMP second messenger signals and position signaling enzymes near their intended substrates at leading edges of migrating cells. IQGAP1 supports calcium/calmodulin-dependent associatio... 查看全文

1310   A potential role for nuclear factor of activated T-cells in receptor tyrosine kinase and G-protein-coupled receptor agonist-induced cell proliferation A potential role for nuclear factor of activated T-cells in receptor tyrosine kinase and G-protein-coupled receptor agonist-induced cell proliferation    2002 We have studied the role of nuclear factor of activated T-cells (NFAT) transcription factors in the induction of vascular smooth muscle cell (VSMC) growth by platelet-derived growth factor-BB (PDGF-BB) and thrombin, the receptor tyrosine kinase (RTK) and G-protein-coupled receptor (GPCR) agonists, respectively. NFATc1 but not NFATc2 or NFATc3 was translocated from the cytoplasm to the nucleus upon treatment of VSMCs with PDGF-BB or thrombin. Translocation of NFATc1 was followed by an increase in... 查看全文

[1]  [2]  [3]  [4]  [5]  [6]  [7]  [8]  [9]  [10]  [11]  [12]  [13]  [14]  [15]  [16]  [17]  [18]  [19]  [20]  [21]  [22]  [23]  [24]  [25]  [26]  [27]  [28]  [29]  [30]  [31]  [32]  [33]  [34]  [35]  [36]  [37]  [38]  [39]  [40]  [41]  [42]  [43]  [44]  [45]  [46]  [47]  [48]  [49]  [50]  [51]  [52]  [53]  [54]  [55]  [56]  [57]  [58]  [59]  [60]  [61]  [62]  [63]  [64]  [65]  [66]  [67]  [68]  [69]  [70]  [71]  [72]  [73]  [74]  [75]  [76]  [77]  [78]  [79]  [80]  [81]  [82]  [83]  [84]  [85]  [86]  [87]  [88]  [89]  [90]  [91]  [92]  [93]  [94]  [95]  [96]  [97]  [98]  [99]  [100]  [101]  [102]  [103]  [104]  [105]  [106]  [107]  [108]  [109]  [110]  [111]  [112]  [113]  [114]  [115]  [116]  [117]  [118]  [119]  [120]  [121]  [122]  [123]  [124]  [125]  [126]  [127]  [128]  129  [130]  [131]  [132]  [133]  [134]  [135]  [136]  [137]  [138]  [139]  [140]  [141]  [142]  [143]  [144]  [145]  [146]  [147]  [148]  [149]  [150]  [151]  [152]  [153]  [154]  [155]  [156]  [157]  [158]  [159]  [160]  [161]  [162]  [163]  [164]  [165]  [166]  [167]  [168]  [169]  [170]  [171]  [172]  [173]  [174]  [175]  [176]  [177]  [178]  [179]  [180]  [181]  [182]  [183]  [184]  [185]  [186]  [187]  [188]  [189]  [190]  [191]  [192]  [193]  [194]  [195]  [196]  [197]  [198]  [199]  [200]  [201]  [202]  [203]  [204]  [205]  [206]  [207]  [208]  [209]  [210]  [211]  [212]  [213]  [214]  [215]  [216]  [217]  [218]  [219]  [220]  [221]  [222]  [223]  [224]  [225]  [226]  [227]  [228]  [229]  [230]  [231]  [232]  [233]  [234]  [235]  [236]  [237]  [238]  [239]  [240]  [241]  [242]  [243]  [244]  [245]  [246]  [247]  [248]  [249]  [250]  [251]  [252]  [253]  [254]  [255]  [256]  [257]  [258]  [259]  [260]  [261]  [262]  [263]  [264]  [265]  [266]  [267]  [268]  [269]  [270]  [271]  [272]  [273]  [274]  [275]  [276]  [277]  [278]  [279]  [280]  [281]  [282]  [283]  [284]  [285]  [286]  [287]  [288]  [289]  [290]  [291]  [292]  [293]  [294]  [295]  [296]  [297]  [298]  [299]  [300]  [301]  [302]  [303]  [304]  [305]  [306]  [307]  [308]  [309]  [310]  [311]  [312]  [313]  [314]  [315]  [316]  [317]  [318]  [319]  [320]  [321]  [322]  [323]  [324]  [325]  [326]  [327]  [328]  [329]  [330]  [331]  [332]  [333]  [334]  [335]  [336]  [337]  [338]  [339]  [340]  [341]  [342]  [343]  [344]  [345]  [346]  [347]  [348]  [349]  [350]  [351]  [352]  [353]  [354]  [355]  [356]  [357]  [358]  [359]  [360]  [361]  [362]  [363]  [364]  [365]  [366]  [367]  [368]  [369]  [370]  [371]  [372]  [373]  [374]  [375]  [376]  [377]  [378]  [379]  [380]  [381]  [382]  [383]  [384]  [385]  [386]  [387]  [388]  [389]  [390]  [391]  [392]  [393]  [394]  [395]  [396]  [397]  [398]  [399]  [400]  [401]  [402]  [403]  [404]  [405]  [406]  [407]  [408]  [409]  [410]  [411]  [412]  [413]  [414]  [415]  [416]  [417]  [418]  [419]  [420]  [421]  [422]  [423]  [424]  [425]  [426]  [427]  [428]  [429]  [430]  [431]  [432]  [433]  [434]  [435]  [436]  [437]  [438]  [439]  [440]  [441]  [442]  [443]  [444]  [445]  [446]  [447]  [448]  [449]  [450]  [451]  [452]  [453]  [454]  [455]  [456]  [457]  [458]  [459]  [460]  [461]  [462]  [463]  [464]  [465]  [466]  [467]  [468]  [469]  [470]  [471]  [472]  [473]  [474]  [475]  [476]  [477]  [478]  [479]  [480]  [481]  [482]  [483]  [484]  [485]  [486]  [487]  [488]  [489]  [490]  [491]  [492]  [493]  [494]  [495]  [496]  [497]  [498]  [499]  [500]   下一页