搜索结果: 1-8 共查到“知识库 Sacramento”相关记录8条 . 查询时间(0.165 秒)
采用模型对比研究方法，以萨克拉门托（Sacramento，SAC）模型为研究对象，以新安江模型为参考，采用基于动物群体的自由搜索（Free search，FS）算法作为率定水文模型的优化算法，选取松花江水系和辽河水系的3个集水区为实证流域，通过对比FS算法率定的SAC模型和新安江模型在3个流域的模拟效果，验证SAC模型在东北寒旱区流域的适用性。研究结果表明，FS算法迭代计算过程简单，需要设置的算法...
Archival and acoustic tags reveal the post-spawning migrations, diving behavior, and thermal habitat of hatchery-origin Sacramento River steelhead kelts (Oncorhynchus mykiss)
Salmonid Electronic tag Geolocation Movement Water temperature Depth Marine Ocean Freshwater
2015/11/16
Acoustic and geolocating archival tags were deployed on steelhead kelts to study their post-spawning migrations, diving behavior and thermal habitat.Fourteen reconditioned steelhead kelts were surgica...
Dispersion Mechanisms of a Tidal River Junction in the Sacramento–San Joaquin Delta, California
Junction dispersion flow phasing tidal trapping super-tidal time scales Delta Cross Channel
2015/6/30
In branching channel networks, such as in the Sacramento–San Joaquin River Delta, junction flow dynamics contribute to dispersion of ecologically important entities such as fish, pollutants, nutrients...
Assessment of fossil fuel carbon dioxide and other anthropogenic trace gas emissions from airborne measurements over Sacramento, California in spring 2009
fossil fuel carbon dioxide anthropogenic trace gas airborne measurements Sacramento California
2011/2/24
Direct quantification of fossil fuel CO2 (CO2ff) in atmospheric samples can be used to examine several carbon cycle and air quality questions. We collected in situ CO2, CO, and CH4 measurements and fl...
The weekend effect within and downwind of Sacramento – Part 1: Observations of ozone, nitrogen oxides, and VOC reactivity
Sacramento ozone nitrogen oxides VOC reactivity
2008/12/23
Day-of-week patterns in human activities can be used to examine the ways in which differences in primary emissions result in changes in the rates of photochemical reactions, and the production of seco...
Homocysteine, B vitamins, and the incidence of dementia and cognitive impairment: results from the Sacramento Area Latino Study on Aging1,2,3
Homocysteine B vitamins dementia cognitive impairment without dementia
2008/12/11
Background:High concentrations of homocysteine have been linked to a greater risk of Alzheimer disease, dementia, and cognitive decline.Objective:We evaluated the association between homocysteine and ...
Homocysteine and cognitive function in the Sacramento Area Latino Study on Aging
folate vitamin B-12 creatinine
2017/1/4
Elevated plasma homocysteine (hyperhomocysteinemia), an independent risk factor for vascular disease, has been reported to be inversely correlated with objective measures of cognitive function in pati...
Nutritional quality of food resources for zooplankton (Daphnia) in a tidal freshwater system (Sacramento–San Joaquin River Delta)
Nutritional quality food resources zooplankton a tidal freshwater system
2014/5/26
We examined the relative nutritional values of natural phytoplankton and particulate detritus for zooplankton growth in a detritus-rich environment. Seston was collected seasonally from four different...