载入中....
登录 | 免费注册 | 设为主页 | 收藏本站 | 最新文献 | 高级  
论文,论文发表,EI论文检索
省级、国家级、EI计算机论文发表
[ QQ:790062161 Tel:15918888768 ]
论文发表,论文投稿,
诚信为本,海一样的胸怀!


   把知来设为主页
  知来一下,找到符合条件的论文13,012,994篇,用时 0.094

3181   Effects of Sample Size and Collection Methods on Stated Preference Models Effects of Sample Size and Collection Methods on Stated Preference Models
Norikazu Suzuki;Shengchuan Zhao;Nobuhiro Akimoto    0
General‐purpose surveys were extremely valuable as key elements of transportation system descriptions, travelers' behavioral analyses, and transportation policymakings. However, they were also expensive, were often large and time‐consuming, added two much burdens to respondents, and usually were not suitable for some specific projects: This paper is concerned with a number of design issues in Stated Preference survey for a Light Rail Transit (LRT) project in Japan. In particular, the effects of
查看全文   

3182   Mexico and North American Free Trade Mexico and North American Free Trade
   2008
Book reviewed in this article:
查看全文   

3183   A review of statistical water temperature models A review of statistical water temperature models
   2007
The use of statistical models to simulate or to predict stream water temperature is becoming an increasingly important tool in water resources and aquatic habitat management. This article provides an overview of the existing statistical water temperature models. Different models have been developed and used to analyze water temperature-environmental variables relationship. These are grouped into two major categories: deterministic and statistical/stochastic models. Generally, deterministic model...
查看全文   

3184   Using mesoscale simulations to train statistical models of tropical cyclone intensity over land Using mesoscale simulations to train statistical models of tropical cyclone intensity over land
   2010
The decay of tropical cyclones after landfall is a key factor in estimating the extent of the hazard overland. Yet our current understanding of this decay is challenged by the low frequency of past events. Consequently, one cannot rely solely upon the historical record when attempting to quantify robustly the inland penetration of tropical cyclones. Thus, a framework designed to complement the historical record of landfalling storms by means of numerical modeling is introduced. Historical meteor...
查看全文   

3185   Japanese business and competitive intelligence† Japanese business and competitive intelligence†
MARC EDELMAN    2006
查看全文   

3186   Vista IR Camera: Conceptual Design Vista IR Camera: Conceptual Design
Ian Egan    0
This paper describes the conceptual design for a near infrared camera for the Visible and Infrared Survey Telescope for Astronomy (VISTA). VISTA is a 4m class survey telescope that is being designed to perform. pre-planned, ground-based astronomical surveys of the Southern sky from ESO's Cerro Paranal Observatory in Chile. The IR Surveys will be carried out in the J, H and Kshort wave-bands at fainter magnitudes than those produced by the current generation of survey telescopes. To maximise t...
查看全文   

3187   Downscaling climate variability associated with quasi-periodic climate signals: A new statistical approach using MSSA Downscaling climate variability associated with quasi-periodic climate signals: A new statistical approach using MSSA
   2011
A statistical method is introduced to downscale hydroclimatic variables while incorporating the variability associated with quasi-periodic global climate signals. The method extracts statistical information of distributed variables from historic time series available at high resolution and uses Multichannel Singular Spectrum Analysis (MSSA) to reconstruct, on a cell-by-cell basis, specific frequency signatures associated with both the variable at a coarse scale and the global climate signals. Hi...
查看全文   

3188   Design decisions for data management with the LSST Design decisions for data management with the LSST
Andrew Connolly    0
In the coming decade we will build on the foundations of current large scale imaging surveys such as the SDSS, 2MASS and MACHO to develop deep, wide-field imaging surveys covering over 15,000 square degrees that are designed to probe to the time domain. One such project is the Large Synoptic Survey Telescope (LSST). We describe here some of the data management challenges we face in moving from the current generation of surveys to an imaging program of the size of the LSST. Scaling from todays de...
查看全文   

3189   Generalizability of songbird habitat models in boreal mixedwood forests of Alberta Generalizability of songbird habitat models in boreal mixedwood forests of Alberta
   2008
Statistical models relating habitat characteristics to species occurrences are increasingly used to evaluate the consequences of forest management activities and conservation plans over large spatial and temporal scales. In practice, such models do not always generalize to other locations, hence, they should be validated using independent data. In this paper, we assess the predictive ability of 16 songbird habitat models developed in the Calling Lake region of the boreal mixedwood forest of Albe...
查看全文   

3190   On the existence of solutions and averaging of multipoint boundary-value problems for multifrequency systems with linearly transformed argument On the existence of solutions and averaging of multipoint boundary-value problems for multifrequency systems with linearly transformed argument
Ya. I. Bihun    2008
For an m-frequency system of differential equations with linearly transformed argument, we prove the existence of a solution that satisfies initial or multipoint boundary conditions. We obtain an estimate for the error of the method of averaging over fast variables that explicitly depends on a small parameter.
查看全文   

3191   Averaging method in some problems of optimal control Averaging method in some problems of optimal control
T. V. Nosenko;O. M. Stanzhyts’kyi    2008
We substantiate the application of the averaging method to the optimal-control problem for systems of differential equations in the standard Bogolyubov form. An ϵ-optimal control is constructed.
查看全文   

3192   ACTIONSCRIPT. A GENTLE INTRODUCTION TO PROGRAMMING ACTIONSCRIPT. A GENTLE INTRODUCTION TO PROGRAMMING
Stewart Crawford, Elizabeth Boese    0
查看全文   

3193   Nonlinear stationary acoustic wave in a solid with dislocations Nonlinear stationary acoustic wave in a solid with dislocations
V. I. Erofeev;V. V. Kazhaev    2010
It is shown that a nonlinear stationary acoustic wave can be formed in a solid with dislocations. Such a wave is periodic and moves faster than acoustic signals in a linear medium. The wave has a saw-tooth shape and its wavelength increases with the amplitude.
查看全文   

3194   Two approaches to noise tests Two approaches to noise tests
Paul D. Vincent    0
Seismologists and geophysical literature often use the term "walkaway" to describe any survey used to analyze wave-trains based on source-to-receiver offset. A distinction should be made between receiver-group-moveout (walkaway) and source-moveout (pseudowalkaway) when multiple channels simultaneously record signal from multiple independent geophones.We present data sets that illustrate this distinction, first in an area where a pseudowalkaway survey was more time efficient than a walk...
查看全文   

3195   Effect of the synthetic antiheparin agent quaternary ammonium salt of oligomer 25-conidine on liver regeneration Effect of the synthetic antiheparin agent quaternary ammonium salt of oligomer 25-conidine on liver regeneration
V. A. Golencheko, s. A. Silaeva, A. B. Shekhter, A. V. Gavril'chak, A. Ya. Nikolaev;V. S. Efimov    1998
Single injection of quaternary ammonium salt of oligomer-25 conidine to rats with acute CCI4-induced hepatitis promotes normalization of morphological and biochemical markers of hepatic injury in comparison with untreated animals. On day 3 postinjection the number of mitosis increased 2–3-fold.
查看全文   

3196   Fixed-source and fixed-receiver walkaway seismic noise tests: A field comparison Fixed-source and fixed-receiver walkaway seismic noise tests: A field comparison
Paul D. Vincent    2006
Seismologists and geophysical literature often use the term "walkaway" to describe any survey used to analyze wavetrains based on source-to-receiver offset. A distinction should be made between receiver-group moveout (fixed-source walkaway) and source moveout (fixed-receiver walkaway) when multiple channels simultaneously record signal from multiple independent geophones. Three data sets are presented that illustrate this distinction: one collected in an area where a fixed-receiver wal...
查看全文   

3197   Assessing the increasing trend in northern hemisphere winter storm track activity using surface ship observations and a statistical storm track model Assessing the increasing trend in northern hemisphere winter storm track activity using surface ship observations and a statistical storm track model
   2007
Recent studies, based largely on analyses of reanalysis datasets, suggest that the Northern Hemisphere winter storm track activity has increased significantly during the second half of the twentieth century. In this study, this increasing trend, in terms of filtered mean sea level pressure (MSLP) variance statistics, is assessed using surface ship observations and a statistical storm track model. MSLP observations made by ships, archived as part of the reanalysis project conducted by the Nationa...
查看全文   

3198   Finding Stellar Streams in Photometric Surveys Finding Stellar Streams in Photometric Surveys
Carl J. Grillmair    0
The advent of high‐quality, wide‐area photometric databases has enabled significant advances in our knowledge of the structure, constituents, and accretion history of our Galaxy. Matched‐filtering techniques allow us to map the spatial distributions of stellar populations with particular color‐magnitude characteristics. This has already led to the detection of several long tidal streams in the Sloan Digital Sky Survey footprint. These streams are variously attributed to disrupted globular cluste
查看全文   

3199   Hypothermic Machine Preservation Reduces Molecular Markers of Ischemia/Reperfusion Injury in Human Liver Transplantation Hypothermic Machine Preservation Reduces Molecular Markers of Ischemia/Reperfusion Injury in Human Liver Transplantation
Qian Peng, Kristian Berg, Johan Moan, Magne Kongshaug and Jahn M. Nesland    2012
Hypothermic machine perfusion (HMP) is in its infancy in clinical liver transplantation. Potential benefits include diminished preservation injury (PI) and improved graft function. Molecular data to date has been limited to extrapolation of animal studies. We analyzed liver tissue and serum collected during our Phase 1 trial of liver HMP. Grafts preserved with HMP were compared to static cold stored (SCS) transplant controls. Reverse transcription polymerase chain reaction (RT-PCR), immunohistoc...
查看全文   

3200   Converted-wave survey design Converted-wave survey design
Mark A. Meier    0
Converted-wave reflection seismology, such as PS, provides information about the subsurface different from that privoded by conventional longitudinal-wave (PP) reflection seismology. Added independent information, in principle, can be used to ascertain subsurface characteristics otherwise unobtainable. Interestingly, the business objectives that motivate PS surveys are often derived from problems with data from previous PP surveys. The data prove inadequate at providing needed information becaus...
查看全文   

3201   Structure optimization and folding mechanisms of off-lattice protein models using statistical temperature molecular dynamics simulation: Statistical temperature annealing Structure optimization and folding mechanisms of off-lattice protein models using statistical temperature molecular dynamics simulation: Statistical temperature annealing
   2007
The recently proposed statistical temperature molecular dynamics (STMD) algorithm is used as the core of an optimization algorithm, statistical temperature annealing (STA), for finding low-lying energy minima of complex potential energy landscapes. Since STMD realizes a random walk in energy, the idea is simply to initiate repeated minimizations from configurations in the low-energy segments of STMD trajectories. STA is tested in structural optimization of various off-lattice AB and extended AB ...
查看全文   

3202   Capillary pressure estimation of porous media using statistical pore size function Capillary pressure estimation of porous media using statistical pore size function
   2006
Real porous media even though seemingly homogenous and isotropic are most often nonuniform, and the nonuniformity may affect the macroscopic properties of porous media such as permeability, capillary pressure which is a result of the tortuous and circuitous nature of the flow paths in medium. In this study a glass type micromodel is considered as a porous media sample. A four parametric probability density function are used to express pore throat size, pore body size and pores length distributio...
查看全文   

3203   Formation of embryoid bodies from mouse embryonic stem cells cultured on silicon-coated surfaces Formation of embryoid bodies from mouse embryonic stem cells cultured on silicon-coated surfaces
Fardin Fathi, Taki Altiraihi, Seyed Javad Mowla;Mansoreh Movahedin    2009
Embryoid bodies (EBs) are primitive embryonic structures derived from differentiating embryonic stem cells (ESCs). Many techniques have been used to obtain EBs. Improving the technique of EB formation can help in achieving better results in ESCs differentiation into neurons, myocardiocytes, haemopoeitic cells, and others. We evaluated the use of Sigmacote™ as a hydrophobic substrate to improve EB formation. CCE and P19 cell lines were used to obtain EBs and retinoic...
查看全文   

3204   Hydrogeophysical Surveys of the Trinity and Edwards Aquifers at Camp Bullis, Northern Bexar County, Texas, 2006 Hydrogeophysical Surveys of the Trinity and Edwards Aquifers at Camp Bullis, Northern Bexar County, Texas, 2006
Jason D. Payne    0
In 2002, the U.S. Geological Survey (USGS), in cooperation with the U.S. Army, began hydrogeologic studies of Camp Bullis in northern Bexar County, Texas, with mapping of hydrogeologic features and hydrostratigraphic units (Clark, 2003) at a scale of 1:24,000. In 2003, a USGS-contracted helicopter electromagnetic (HEM) resistivity and magnetic survey was flown over Camp Bullis and the adjacent Camp Stanley (Figure 1). This paper describes the integrated ground electrical and electromagnetic geop...
查看全文   

3205   Scavenging activity of C4-hydroxyphenyl- and polyhydroxyphenyl-1,4-dihydropyridines toward free radicals Scavenging activity of C4-hydroxyphenyl- and polyhydroxyphenyl-1,4-dihydropyridines toward free radicals
   2012
The radical-scavenging ability of synthesized C4-phenolic-substituted 1,4-dihydropyridines (1,4-DHPs) toward 2,2-diphenyl-1-picrylhydrazyl (DPPH•) and alkyl/alkylperoxyl ABAP-derived radicals at pH 7.4 was assessed by UV–visible spectroscopy. Reactivity of 1,4-DHPs toward DPPH• was measured by following the decay of the absorption corresponding to the radical λmax at 525 nm, permitting the calculation of EC50, tEC50, and antiradical efficiency values. Pseudo–first-or...
查看全文   

3206   Brine Delineation and Monitoring with Electrical Resistivity Tomography and Electromagnetic Borehole Logging at the Fort Knox Well Field near West Point, Kentucky Brine Delineation and Monitoring with Electrical Resistivity Tomography and Electromagnetic Borehole Logging at the Fort Knox Well Field near West Point, Kentucky
Rory D. Henderson    0
The potable water system at Fort Knox is threatened by brine contamination from improperly abandoned natural gas exploration wells. The Fort Knox well field is located near the town of West Point, Kentucky, in the flood plain of the Ohio River. At the site, unconsolidated sediments approximately 30 – 40 m thick, overlie shale and porous limestone. Brine is believed to flow vertically from the underlying formations to the unconsolidated aquifer through damaged or leaky well casings under a ...
查看全文   

3207   How incomplete statistical accident data affects the validation of risk analysis models How incomplete statistical accident data affects the validation of risk analysis models
   2012
Validation of risk assessment models are often conducted by comparing model estimations with historical and statistical accident data. This paper presents a fairway traffic risk assessment study in the Oslofjord area in 2010, where statistical data was used to validate the risk assessment model used in the study. Statistical accident data for the Oslofjord area was collected over a period of almost 30 years from the Norwegian Maritime Authorities and IHS Fairplay Sea-Web. Using a capture-recaptu...
查看全文   

3208   Problem Description and an Integer Multicommodity Flow Model Problem Description and an Integer Multicommodity Flow Model
D. Espinoza, R. Garcia, M. Goycoolea, G. L. Nemhauser, M. W. P. Savelsbergh    0
informs doi 10.1287/trsc.1070.0227
查看全文   

3209   The WISE InfraRed Excesses around Degenerates (WIRED) Survey The WISE InfraRed Excesses around Degenerates (WIRED) Survey
D. W. Hoard;J. H. Debes;S. Wachter;D. T. Leisawitz;M. Cohen    0
The Wide‐field Infrared Survey Explorer (WISE) is a NASA medium class Explorer mission that performed an all sky survey in four infrared bands. We present an overview of the WISE InfraRed Excesses around Degenerates (WIRED) Survey, which has the goals of characterizing white dwarf stars in the WISE bands, confirming objects known to have infrared excess from past observations, and revealing new examples of white dwarfs with infrared excess that can be attributed to unresolved companions or debri
查看全文   

3210   Multiobjective Genetic Algorithm Approach to the Economic Statistical Design of Control Charts with an Application to X-bar and S2 Charts Multiobjective Genetic Algorithm Approach to the Economic Statistical Design of Control Charts with an Application to X-bar and S2 Charts
   2012
Control charts are the primary tools of statistical process control. These charts may be designed by using a simple rule suggested by Shewhart, a statistical criterion, an economic criterion, or a joint economic statistical criterion. Each method has its strengths and weaknesses. One weakness of the methods of design listed is their lack of flexibility and adaptability, a primary objective of practical mathematical models. In this article, we explore multiobjective models as an alternative for t...
查看全文   


   上一页  [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]  [501]  [502]  [503]  [504]  [505]  [506]  [507]  [508]  [509]  [510]  [511]  [512]  [513]  [514]  [515]  [516]  [517]  [518]  [519]  [520]  [521]  [522]  [523]  [524]  [525]  [526]  [527]  [528]  [529]  [530]  [531]  [532]  [533]  [534]  [535]  [536]  [537]  [538]  [539]  [540]  [541]  [542]  [543]  [544]  [545]  [546]  [547]  [548]  [549]  [550]  [551]  [552]  [553]  [554]  [555]  [556]  [557]  [558]  [559]  [560]  [561]  [562]  [563]  [564]  [565]  [566]  [567]  [568]   下一页

友情链接   |  联系我们  |  发表论文  |  论文发表  |   加入收藏

   @ 2005-2009 粤ICP备09006515号-2

QQ:790062161 TEL:15918888768