51   Ab initio investigation of the structural stability and optical properties of low-density amorphous carbon doped with N, B, and Fe Ab initio investigation of the structural stability and optical properties of low-density amorphous carbon doped with N, B, and Fe Charles W. Bauschlicher Jr.;John W. Lawson    2012 The addition of iron or boron and/or nitrogen, up to 20 %, to amorphous carbon with a density of about 2.0 gm/cm3 was studied using density functional theory. The bulk cohesive energy decreases with increasing iron, nitrogen, or boron concentration. The decrease is largest for iron and smallest for boron. The trends in the bulk moduli are consistent with the cohesive energies. The optical properties (absorbance and reflectivity) of the samples with nitrogen and/or... 查看全文

52   Engineering development of the Free Ocean CO2 Enrichment (FOCE) experiment Engineering development of the Free Ocean CO2 Enrichment (FOCE) experiment    2005 Globally, the burning of fossil fuels for energy production produces over 25 gigatons of CO2 per year and this material is released directly into the atmosphere. While approximately half of the CO2 has remained in the atmosphere long-term, most of the rest has been absorbed by the surface ocean. This has resulted in a lowering of the surface ocean pH by about 0.1 units since the beginning of the industrial revolution and if society is able to stabilize atmospheric CO2 levels at twice their pre-i... 查看全文

53   Extracorporeal membrane oxygenation promotes survival in children with trauma related respiratory failure Extracorporeal membrane oxygenation promotes survival in children with trauma related respiratory failure David Skarda, Jared W. Henricksen;Michael Rollins    0 Extracorporeal membrane oxygenation (ECMO), which is used for cardiopulmonary support in many non-trauma settings, may also be of use in pediatric patients with traumatic lung injury by allowing the lung to rest and heal. We have utilized ECMO to support three multitrauma pediatric patients with posttraumatic respiratory failure in the past 2 years. We sought to review our experience at a level 1 tertiary care children’s hospital in this patient popula... 查看全文

54   Occupation: The essential nexus between philosophy, theory and practice Occupation: The essential nexus between philosophy, theory and practice Birgitte Norlyk    2002 查看全文

55   Midlatitude atmosphere-ocean interaction during El Niño. Part I: The North Pacific ocean Midlatitude atmosphere-ocean interaction during El Niño. Part I: The North Pacific ocean    1992 Atmosphere-ocean modeling experiments are used to investigate the formation of sea surface temperature (SST) anomalies in the North Pacific Ocean during fall and winter of the El Nin˜o year. Experiments in which the NCAR Community Climate Model (CCM) surface fields are used to force a mixed-layer ocean model in the North Pacific (no air-sea feedback) are compared to simulations in which the CCM and North Pacific Ocean model are coupled. Anomalies in the atmosphere and the North Pacific Oce... 查看全文

56   Update on the U.S. DOE ocean energy program Update on the U.S. DOE ocean energy program    1989 This paper summarizes recent research accomplishments of the program and provides a synopsis of planned activities leading to a Net Power-Producing Experiment (NPPE), to be conducted at the Seacoast Test Facility (STF), at Keahole Point, Hawaii. The objectives and results of seawater testing performed at the DOE's STF/Heat and Mass Transfer Scoping Test Apparatus (HMTSTA) are summarized. These research efforts at the HMTSTA have provided the most recent and, in some cases, the only accurate seaw... 查看全文

57   The sensitivity of the climate response to the magnitude and location of freshwater forcing: last glacial maximum experiments The sensitivity of the climate response to the magnitude and location of freshwater forcing: last glacial maximum experiments    2010 Proxy records indicate that the locations and magnitudes of freshwater forcing to the Atlantic Ocean basin as iceberg discharges into the high-latitude North Atlantic, Laurentide meltwater input to the Gulf of Mexico, or meltwater diversion to the North Atlantic via the St. Lawrence River and other eastern outlets may have influenced the North Atlantic thermohaline circulation and global climate. We have performed Last Glacial Maximum (LGM) simulations with the NCAR Community Climate System Mode... 查看全文

58   Occupational therapy in community mental health: Do we have a unique role in the interdisciplinary environment? Occupational therapy in community mental health: Do we have a unique role in the interdisciplinary environment?    2010 查看全文

59   China's study on the lift system in deep ocean mining China's study on the lift system in deep ocean mining    2007 The lift system is the main part in manganese nodule mining on the ocean bed. It connects the nodule collection system (miner) with the surface platform. (mining vessel) and transports the nodules from the ocean bed to the surface. China started the research on lift technology in deep ocean mining in 1991, and a slurry pump hydraulic lift method has been developed for the nodule mining system. The detailed slurry pump hydraulic lift experiments have been undertaken with crushed nodules in the ve... 查看全文

60   Possibility of supervision over detailed structure of ocean currents by "MODIS" Possibility of supervision over detailed structure of ocean currents by "MODIS"    2008 The report focuses on the analysis of the detail structure of ocean currents in areas of dust storms distribution or intensive phytoplankton's development. Dust storms represent the global phenomenon occurring regularly and, thus, atmospheric streams transfer a significant amount of the sand and dust (more than 2000 million tons) from deserts of Gobi, Sahara, Namibia, and Arabian Peninsula etc. The dust from Sahara achieves Caribbean Sea and southeast areas of USA for 5-7 days, and traces of the... 查看全文

61   Parametric roll: Highly controlled experiments for an innovative ship design Parametric roll: Highly controlled experiments for an innovative ship design    2008 The present work is focused on ship's parametric roll. In particular, a series of controlled experiments have been performed in order to obtain repeatable results both for the inception and the roll amplitude in parametric roll condition. The experiments have been performed for an innovative ship design (a tumblehome shape) in a towing tank provided by a flap-type wave maker. The model was tested in 3 DoF conditions, being roll, pitch and heave motions free and surge, sway and yaw restrained. Th... 查看全文

62   The Place of the WFOT Congress in the 21st century The Place of the WFOT Congress in the 21st century    2009 查看全文

63   Shifts in biogenic carbon flow from particulate to dissolved forms under high carbon dioxide and warm ocean conditions Shifts in biogenic carbon flow from particulate to dissolved forms under high carbon dioxide and warm ocean conditions    2011 Photosynthesis by phytoplankton in sunlit surface waters transforms inorganic carbon and nutrients into organic matter, a portion of which is subsequently transported vertically through the water column by the process known as the biological carbon pump (BCP). The BCP sustains the steep vertical gradient in total dissolved carbon, thereby contributing to net carbon sequestration. Any changes in the vertical transportation of the organic matter as a result of future climate variations will direct... 查看全文

64   VERTICAL INTEGRATION TOWARD AN EXPORT-ORIENTED INDUSTRY† VERTICAL INTEGRATION TOWARD AN EXPORT-ORIENTED INDUSTRY† Stefan Szymanski and Tommaso Valletti    2012 The literature on vertical integration has constantly assumed a linear demand for the final good market. In this paper, we instead assume the demand to be a general one and use it to derive the welfare effect of vertical integration toward an export-oriented industry. It is shown that the effect of vertical integration on the intermediate good price depends on the curvature of the derived demand curve. Moreover, vertical integration is welfare-improving only if it increases the price of the inte... 查看全文

65   MACROECONOMIC VOLATILITY AND COUNTERFACTUAL INFLATION-TARGETING IN HONG KONG MACROECONOMIC VOLATILITY AND COUNTERFACTUAL INFLATION-TARGETING IN HONG KONG Stefan Szymanski and Tommaso Valletti    2012 The present paper evaluates macroeconomic adjustment in Hong Kong with an estimated dynamic stochastic general equilibrium (DSGE) model under a fixed exchange rate regime. We find that exports and world inflation shocks are the dominant sources of GDP volatility, with the risk premium taking on importance during the Asian crisis after 1997. A counterfactual simulation, assuming a flexible exchange rate regime with inflation targeting, shows that inflation would have decreased slightly, but inter... 查看全文

66   Interannual variability of the upper ocean in the Southeast Pacific stratus cloud region Interannual variability of the upper ocean in the Southeast Pacific stratus cloud region    2009 Persistent stratus/stratocumulus cloud decks in the southeast Pacific near the coasts of Peru and northern Chile play an important role in regional and global climate variability. Interannual variability of the upper ocean under stratus cloud decks in the southeast Pacific is investigated using ocean general circulation model (OGCM) experiments. The model was first forced with daily surface fluxes based on the NCEP-NCAR reanalysis and satellite-derived surface shortwave and longwave radiation fo... 查看全文

67   Genetic parameter estimates for body weight in local Venda chickens Genetic parameter estimates for body weight in local Venda chickens D. Norris;J. W. Ngambi    2006 Genetic parameters were estimated for Venda chicken body weights at hatching, and at 4 weeks, 10 weeks and 21 weeks of age. A single-trait animal model with restricted maximum-likelihood procedures was used. Random effects were additive direct and maternal genetic, common environmental and error. The heritability estimates for direct effects were 0.36, 0.25, 0.41 and 0.22 for hatch, 4 weeks, 10 weeks and 21 weeks, respectively. The maternal effects were estimated at hatch... 查看全文

68   Impacts of the Indian Ocean on the ENSO cycle Impacts of the Indian Ocean on the ENSO cycle    2002 This study examines the impacts of the Indian Ocean on the ENSO (El Nin˜o-Southern Oscillation) cycle by performing experiments with a coupled atmosphere-ocean general circulation model (CGCM). In one of the experiments, the ocean model domain includes only the tropical Pacific Ocean (the Pacific Run). In the other experiment, the ocean model domain includes both the Indian and tropical Pacific Oceans (the Indo-Pacific Run). The experiment results show that the CGCM simulation of ENSO incl... 查看全文

69   Analysing the use of hospital care services in Finland Analysing the use of hospital care services in Finland F. Alves Cardoso and C.Y. Henderson    2004 Hospital care captures more than one half of the funds allocated for health care within municipalities in Finland. Municipal administrators perceive that there is little they can do as far the quantity and quality of services are concerned. This case study was to analyse the utilization of hospital care within a coalition of two municipalities (Paimio and Sauvo) for one year. By using the Diagnosis Related Groups and Main Diagnostic Categorizations and by comparing the data with the existing phy... 查看全文

70   Health promotion in palliative care: An occupational perspective Health promotion in palliative care: An occupational perspective    2008 查看全文

71   Large scale airlift experiments for application to deep ocean mining Large scale airlift experiments for application to deep ocean mining    2007 Deep ocean mining for manganese nodules was the subject of extensive research and development in the 1970s. Recently, the discovery of very rich massive sulfide deposits in deep water has sparked renewed interest in this technology. This paper will report the results of a series of experiments conducted in the late 1970s to validate predictions for the performance of airlift pumping for an ocean mining application. The paper will discuss the sensitivity of airlift performance to proper flow regi... 查看全文

72   The World Ocean Circulation Experiment (WOCE) The World Ocean Circulation Experiment (WOCE)    1998 The World Ocean Circulation Experiment (WOCE) is a global oceanographic research program concerned with long-term variability in ocean circulation and property distributions and their relation to climate. Its goals are to develop models useful for predicting climate variability on time scales longer than seasonal to interannual, and to collect the data from the global ocean necessary to test them. Using a variety of instrument platforms, some developed specifically for the program, researchers i... 查看全文

73   Factors determining the origin and maintenance of redundant species diversity of the soil animal population (by a case study of the Far East) Factors determining the origin and maintenance of redundant species diversity of the soil animal population (by a case study of the Far East) G. N. Ganin;B. R. Striganova    2012 The factors determining the origin and maintenance of a high taxonomic diversity of soil communities are discussed by a case study of the key groups constituting the soil saproblock. The bulk of the species richness in the southern Far East is localized to the coniferous-deciduous forests retaining the tertiary elements in their flora and ancient relations with the Asian tropical fauna. The roles of the following factors are considered: the long-term geographic i... 查看全文

74   Geothermal heat flux and its influence on the oceanic abyssal circulation and radiocarbon distribution Geothermal heat flux and its influence on the oceanic abyssal circulation and radiocarbon distribution    2009 Geothermal heating of abyssal waters is rarely regarded as a significant driver of the large-scale oceanic circulation. Numerical experiments with the Ocean General Circulation Model POTSMOM-1.0 suggest, however, that the impact of geothermal heat flux on deep ocean circulation is not negligible. Geothermal, heating contributes to an overall warming of bottom waters by about 0.4°C, decreasing the stability of the water column and enhancing the formation rates of North Atlantic Deep Water and... 查看全文

75   Enhanced electron–ion recombination in ion storage rings Influence of transient field effects Enhanced electron–ion recombination in ion storage rings Influence of transient field effects M. Hörndl, S. Yoshida, J. Burgdörfer, G. Gwinner;A. Wolf    2006 We review recent advances in the understanding of the enhanced electron–ion recombination observed in storage ring experiments. The measured recombination rates show a strong enhancement relative to what the standard radiative recombination rates predict. A transient motional electric field is induced in the merging region of an electron and an ion beam in the electron cooler. This induced field opens an additional pathway for free-bound transitions of electrons. Th... 查看全文

76   DEEP TOWED EXPLOSIVE SOURCE FOR SEISMIC EXPERIMENTS ON THE OCEAN FLOOR. DEEP TOWED EXPLOSIVE SOURCE FOR SEISMIC EXPERIMENTS ON THE OCEAN FLOOR.    1986 A new seismic source for carrying out high resolution measurements of deep ocean crustal structure has been constructed and successfully used in a number of ocean bottom refraction experiments on the Mid Atlantic Ridge near 23 degree N. The source is towed within 100 m of the ocean floor on a conventional 0. 68' coaxial cable and is capable of firing, upon command from the research vessel, up to 48 individual 2. 3 kg explosive charges. The explosive used was commercially available Penta-Erythrit... 查看全文

77   Pre-experiments of OTEC experimental facility for ocean-based mariculture-OTEC pilot plant 'HOUYOU' Pre-experiments of OTEC experimental facility for ocean-based mariculture-OTEC pilot plant 'HOUYOU'    1989 The ocean-based mariculture-OTEC pilot plant 'HOUYOU' was completed in March, 1989 and the at-sea test in Toyama Bay was carried out from July 18th until September 7th in 1989, while the cold water pipe was deployed off Himi, in Toyama Bay, the Sea of Japan in August, 1988. The paper presents the specification of the ocean-based mariculture-OTEC pilot plant, in particular the OTEC experimental facility installed in it, and some results of preparatory experiments and simulating analysis for the O... 查看全文

78   Export Bans, Environment, and Developing Country Welfare Export Bans, Environment, and Developing Country Welfare    2006 Deforestation is a serious problem in several developing countries which are timber exporters. Export bans on logs, therefore, have been hailed by some as a welfare-improving policy relative to free trade. This paper explores the case for an export ban on an intermediate good whose production generates environmental damage. In this two-good model, a trade-off emerges between achieving the environmental target and raising national welfare. When environmental damage grows rapidly with output, an e... 查看全文

79   Wind-induced ocean circulation along California and Baja California coasts in June 1999 Wind-induced ocean circulation along California and Baja California coasts in June 1999    2009 The circulation along the California Coast in June 1999 was influenced by strong upwelling-favourable winds. To study the ocean circulation and upwelling variability, the Princeton Ocean Model (POM) was setup for the California and Baja California coasts and it was forced with interactively computed wind stress and surface heat fluxes. Atmospheric fields used in the surface flux estimates during the POM runs were obtained from Mesoscale Model 5 (MM5) outputs, while the sea surface temperatures (... 查看全文

80   Patterns of gastro-intestinal cancer in european migrants to Australia: The role of dietary change Patterns of gastro-intestinal cancer in european migrants to Australia: The role of dietary change Tianjiao Qiu, William Qualls, Jonathan Bohlmann and Deborah E. Rupp    2006 Cancers of the stomach, pancreas, colon and rectum are increasingly regarded as being diet-influenced. Migrants to Australia from England, Scotland, Ireland, Poland, Yugoslavia, Greece, and Italy have come from countries with varied dietary backgrounds and gastrointestinal cancer risks. Age-standardized cancer death rates in migrants, by country of origin, sex, age, and duration of residence in Australia (≤16 years and >16 years), have been calculated for 1962–76, and compared with t... 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