Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 110 for “"NPP"”.
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Heat-transfer analysis of double-pipe heat exchangers for indirect-cycle SCW NPP
… SuperCritical Water (SCW) Nuclear Power Plants (NPPs) are expected to have much higher operating parameters compared to current NPPs, i.e., pressure of about 25 MPa and outlet temperature up to 625 oC. This study presents the heat transfer analysis of an intermediate Heat exchanger (HX) design …
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A Tele-Coaching Intervention to Support Families in the NPP+: An Experimental Mixed Method Design
… program (EBPP) Nurturing Parenting Program (NPP) plus case management (NPP+) would offer better results for high-risk, low SES parents. Parents attending the NPP+ in community sites were randomly selected to receive 30-60 minutes of tele-coaching. Key treatment variables (i.e., …
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Er hægt að nýta Negotek Preparation Planner (NPP) Gavin Kennedys sem aðferð við að skilgreina umfang verkefna?
Mikið getur legið undir þegar viðskiptaverkefni og umfang verkefna er skilgreint. Ef umræður um þau eru óskilvirkar og ónákvæmar getur það auðveldlega komið niður á verkefnunum og eða komið í veg fyrir að verkefni verði. Í ljósi þessa virðist mikil áhætta fólgin í samskiptum á milli sérfræðinga. Í …
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The Interactive Effects of Phosporus and Calcium on Phosphorus Requirement, Utilization, and Phytase Efficacy in Poultry
… was conducted to identify the nonphytate P (nPP) requirement of 0 to 14 d old broilers. The nPP levels fed ranged from 0.30 to 0.60% with a Ca:nPP of 2.22:1 or 1.9:1. Requirement estimates for 0 to 14 d ranged from 0.52 to 0.60% nPP. One experiment with 2 trials was conducted to identify the …
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Effects of dietary calcium to non-phytate phosphorus ratio and phytase supplementation on growth performance, digestibility, and bone characteristics of broiler chickens
… among Ca, non-phytate phosphorus (NPP), and phytase supplementation in diets fed to broiler chickens. Experiment 1 was conducted to evaluate the influence of dietary Ca concentrations by evaluating growth performance, tibia measurements, and apparent retention of broiler chicks. …
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Future potential net primary production trends of contiguous United States rangelands
… trends and patterns in net primary production (NPP) requires projected potential NPP to better understand how rangelands will be affected by a changing climate. Here, I used climate data projected from a global climate model (GCM) to drive the biogeochemical model (Biome-BGC) in an attempt to …
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Future potential net primary production trends of contiguous United States rangelands
… trends and patterns in net primary production (NPP) requires projected potential NPP to better understand how rangelands will be affected by a changing climate. Here, I used climate data projected from a global climate model (GCM) to drive the biogeochemical model (Biome-BGC) in an attempt to …
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The Role of Maternal Emotion Regulation in the Relationship Between Maternal Adverse Childhood Experiences (ACEs), Negative Parenting, and Child Externalizing Behaviors
… use of more negative parenting practices (NPP). However, the role of maternal difficulty in emotion regulation in the link between maternal ACEs, NPP, and child externalizing behaviors has not been previously shown in the literature. Thus, the present study aimed to examine these relations, …
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Study on Regional Responses of Pan-Arctic Terrestrial Ecosystems to Recent Climate Variability Using Satellite Remote Sensing
… annual terrestrial net primary productivity (NPP) for the pan-Arctic basin and Alaska from 1983 to 2005. I developed a satellite remote sensing based evapotranspiration (ET) algorithm using GIMMS NDVI with the above meteorology inputs to assess spatial patterns and temporal trends in ET over …
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Study on Regional Responses of Pan-Arctic Terrestrial Ecosystems to Recent Climate Variability Using Satellite Remote Sensing
… annual terrestrial net primary productivity (NPP) for the pan-Arctic basin and Alaska from 1983 to 2005. I developed a satellite remote sensing based evapotranspiration (ET) algorithm using GIMMS NDVI with the above meteorology inputs to assess spatial patterns and temporal trends in ET over …
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Simulating the Impacts of Land-Use Land-Cover Changes on Cropland Carbon Fluxes in the Midwest of the United States
… LULC change on cropland net primary production (NPP) estimates. We found out the high spatial variability of cropland NPP across the study region was strongly related to the changes in crop species. Ignoring information about crop species distributions could introduce large biases into NPP …
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Development of a hybrid intelligent system for on-line real-time monitoring of nuclear power plant operations
A nuclear power plant (NPP) has an intricate operational domain involving systems, structures and components (SSCs) that vary in scale and complexity. Many of the large scale SSCs contribute to the lost availability in the operation of the NPPs, when their malfunctions cannot be detected in a …
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Interactions Between Nutrition and Health or Stress in Poultry
… the effects of dietary nonphytate phosphorus (NPP) level in chicks exposed to heat stress (HS). The results indicated that the NPP requirement for growth of 8- to 22-d old chicks may be reduced by high temperatures (37 C). A NPP deficiency, however, may result in increased mortality in older …
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Exploring the Impact of Climate and Productivity on Soil Carbon Across the Native Range of Loblolly Pine
… (MAT) and annual net primary productivity (NPP) for the native range of loblolly pine (Pinus taeda L). A Monte Carlo method was used to calibrate a large ensemble of model parameters using observational data from loblolly pine stands. Spatial projections of carbon pools across the native …
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Study on linking a SuperCritical water-cooled nuclear reactor to a hydrogen production facility
… a SuperCritical Water (SCW) Nuclear Power Plant (NPP) suitable to support thermochemical-based hydrogen production via co-generation. The Copper-Chlorine (Cu‒Cl) cycle is a prospective thermochemical cycle with a maximum temperature requirement of ~530°C and could be linked to an SCW NPP through a …
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The Effect of Elevated Carbon Dioxide and Ozone on Soybean Development, Leaf Anatomy and Productivity
… of both GPP and net primary production (NPP). Although the NPP modeled in this way agreed closely in absolute terms with that estimated from biomass measurements, the stimulation in NPP due to elevated [CO 2] was very much higher than the biomass measurements showed. The potential causes …
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A study of concurrent design methodology in the development of a medical diagnostic instrument
The New Products Program (NPP) is a joint venture between the Massachusetts Institute of Technology (MIT) and industrial sponsors. The aims of the program are the advancement of engineering education and the development of new commercial products. This particular project was sponsored by Becton …
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Environmental and developmental regulation of carbon cycling in a warm-temperate forest
… an expected decline in Net Primary Production (NPP) with increasing age. To examine the effect of elevated atmospheric CO2 concentrations on ecosystem C loss via autotrophic respiration (Ra), I measured rates of fine root respiration at the Duke Free Air CO2 Enrichment (FACE) experiment, the …
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Quantifying Trends In our National Parks: A Landscape Level Analysis of Climate Change and Ecosystem Productivity
… (available water and net primary productivity; NPP) we identified the National Park System units that are rapidly changing with respect to climate and ecosystem productivity. Additionally, we compared the NPS units with the surrounding, protected area centered ecosystem (PACE), to identify which …
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Quantifying Trends In our National Parks: A Landscape Level Analysis of Climate Change and Ecosystem Productivity
… (available water and net primary productivity; NPP) we identified the National Park System units that are rapidly changing with respect to climate and ecosystem productivity. Additionally, we compared the NPS units with the surrounding, protected area centered ecosystem (PACE), to identify which …
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