Temporal variation

Xem 1-14 trên 14 kết quả Temporal variation
  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: Temporal variation in the recovery from impairment in adriamycin-induced wound healing in rats...

    pdf4p thulanh23 21-11-2011 19 3   Download

  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài:"The d13C of Scots pine (Pinus sylvestris L.) needles: spatial and temporal variations"

    pdf8p toshiba4 20-09-2011 15 1   Download

  • The objective of this study was to evaluate the effect of agricultural pollution on periphyton in streams and rivers of southern Que´bec. influence the strength of the temporal variation. Some data did not respect normality after be- ing transformed. However, as noted by Scheffe´ (1959) and Montgomery (2001), ANOVAs are relatively in- sensitive to moderate deviations from normality and Land use analyses Mean values for the physico-chemical variables at each site are shown in Table 2 and land use information is shown in Table 3.

    doc24p nhoxden_20101991 13-06-2011 76 13   Download

  • Over the past few decades numerous studies have shown an alarming increase in the concentration of atmospheric particular matter called aerosols resulting from a variety of human activities, ranging from agricultural to combustion of fossil fuels. Besides having serious impacts on the health of all living creatures, these particles can affect planetary radiation budget. Consequences of this change include global temperature shifts and the altering of atmospheric and oceanic circulation patterns.

    pdf0p greengrass304 18-09-2012 23 6   Download

  • Tham khảo sách 'atmospheric aerosols – regional characteristics – chemistry and physics_2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf160p greengrass304 18-09-2012 26 4   Download

  • Extent of knowledge sharing: Related to the above problem is the question of how much knowledge is available to the system during its query optimization process. In particular, the first step in choosing a query evaluation strategy is likely to be identifying which nodes have materialized views that can speed query processing. A simple technique would be to use a centralized catalog of all available views and their locations, analogous to the central directory used by Napster. Yet this model introduces a single point of failure and a potential scalability bottleneck.

    pdf25p yasuyidol 02-04-2013 15 4   Download

  • The inclusion of a smooth function of time in a regression model introduces important sta- tistical issues.We generally do not know precisely the complexity of the seasonal and long-term trends in themortality time series or in the pollution time series. Therefore, a controversial issue is determining how much smoothness we should allow for the smooth function of time. This decision is critical because it determines the amount of residual temporal variation in mortality that is available to estimate the air pollution effect.

    pdf9p doipassword 01-02-2013 14 3   Download

  • A procedure was designed to assess individual exposure to NO2 as a marker of outdoor air pollution considering both spatial and temporal variations on exposure. Ambi- ent NO2 concentrations for 93 sampling points covering the study area were obtained using radial symmetry pas- sive samplers (Radiello®, Fondazione Salvatore Maugeri, Padua/Italy) which remained exposed for four sampling periods of 7 days each. The campaigns took place in April, June, and November 2004 and February 2005.

    pdf11p doipassword 01-02-2013 21 3   Download

  • Our framework assumes that funds' sensitivities to passive assets are constant over time. One way of relaxing this assumption is to model these coe±cients as linear functions of state variables, as for example in Ferson and Schadt (1996) and Shanken (1990). In such a modi¯cation, passive asset returns scaled by the state variables can be viewed as returns on additional passive assets (dynamic passive strategies), and the approach developed here could be extended to such a setting. Another approach to dealing with temporal variation in parameters could employ data on fund holdings.

    pdf53p thangbienthai 22-11-2012 12 2   Download

  • Temporal variations in indoor VOC concentrations in the house likely were affected by changes in the sources with age and in the house parameters, principally air change rate, temperature and relative humidity. Air change rates in the house, which was operated at a single defined condition for all the sampling periods, were affected by wind speed and temperature conditions. At low wind speed conditions (wind speed

    pdf34p ut_hai_can 29-12-2012 22 2   Download

  • Due to the unavoidable nonbiological variations accompanying many experiments, it is imperative to consider a way of unravelling the functional interaction structure of a cellular network (e.g. signalling cascades or gene networks) by using the qualitative information of time-series experimental data instead of computation through the measured absolute values.

    pdf10p fptmusic 11-04-2013 20 2   Download

  • Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: "Temporal and spatial variation in transpiration of Norway spruce stands within a forested catchment of the Fichtelgebirge, Germany...

    pdf21p toshiba8 12-10-2011 18 1   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Population genetics of the metabolically related Adh, Gpdh and Tpi polymorphisms in Drosophila melanogaster : II. Temporal and Spatial Variation in an Orchard Population Karen M. NIELSEN A.A. HOFFMANN S.W. McKECHNIE

    pdf18p toshiba21 16-11-2011 21 1   Download

  • Event recognition methods can be roughly categorized into model-based methods and appearance-based techniques. Model-based approaches relied on various models, includ- ing HMM [35], coupled HMM [3], and Dynamic Bayesian Network [33], to model the temporal evolution. The relationships among different body parts and regions are also modeled in [3], [35], in which object tracking needs to be conducted at first before model learning.

    pdf25p nhacsihuytuan 06-04-2013 17 4   Download

Đồng bộ tài khoản