搜索结果: 1-15 共查到“农学 Flow”相关记录44条 . 查询时间(0.203 秒)
Ecological Interactions, Environmental Gradients, and Gene Flow in Local Adaptation
anti-herbivore defense environmental gradients evolution gene flow herbivore–pollinator interaction sphenology
2023/12/7
Despite long-standing interest in local adaptation of plants to their biotic and abiotic environment, existing theory, and many case studies, little work to date has addressed within-species evolution...
The luteal blood flow, area and pixel intensity of corpus luteum, levels of progesterone in pregnant and nonpregnant mares in the period of 16 days after ovulation
horse pregnancy ultrasonic imaging Doppler ultrasonography image analysis
2015/6/24
The objective of the present study was to examine if luteal blood flow (LBF) monitoring could be used as an additional prognostic tool for early pregnancy diagnosis, and we particularly focused on the...
The level of udder emptying and milk flow stability in Tsigai, Improved Valachian, and Lacaune ewes during machine milking
ewe milk flow curves stability of milk flow types
2015/6/23
The objective of this investigation was to evaluate the stability of milk flow curves and the
volume of residual milk in relation to milk flow curves in breeds Tsigai, Improved Valachian, and Lacaun...
Factors affecting temporary cavity generation during gunshot wound formation in animals – new aspects in the light of flow mechanics: a review
temporary cavity gunshot wound bullet
2015/4/15
There is controversy regarding the causes of temporary cavity generation during gunshot wound formation. Analysis of gunshot wounds in hunted animals suggests that a bullet’s frontal surface shape is ...
On parameterization of heat conduction in coupled soil water and heat flow modelling
advective heat flux dual-permeability model preferential flow soil heat transport soil thermal conductivity surface energy balance
2015/3/5
Soil water and heat transport plays an important role in various hydrologic, agricultural, and industrial applications. Accordingly, an increasing attention is paid to relevant simulation models. In t...
Assessment of frequency and areal extent of overland flow generation in a forested mountain catchment
isotopic hydrograph separation mountain catchment rainfall intensity runoff generation soil hydraulic conductivity
2015/3/3
Short time rainfall and throughfall measurements in the period May–October 2009, and the calculated saturated hydraulic conductivities of soils and isotopic hydrograph separations in August 2009 were ...
Quarter milk flow patterns in dairy cows: factors involved and repeatability
dairy cows quarter milk flow SCC repeatability
2015/1/27
The objectives of our study were to describe the variation of quarter milk flow parameters and to determine the factors that affect these parameters the most. Additionally, repeatabilities (r2) of the...
Urban Forest and Tree Valuation Using Discounted Cash Flow Analysis: Impact of Economic Components
Urban Forest Benefits Costs Economic Components Discounted Cash Flow Analysis Arboriculture
2013/3/4
Discounted cash flow analysis is one of the standard methods used to value urban forests and trees. It involves calculating today’s value for all benefits and costs attributed to an investment; that i...
Maintaining an Optimal Flow of Forest Products under a Carbon Market: Approximating a Pareto Set of Optimal Silvicultural Regimes for Eucalyptus fastigata
Optimal Control Competitive Co-Evolutionary Multi-Objective Genetic Algorithm (cc-MOGA) Pareto Front Forest Holding Value Kruskal-Wallis Test Multiple Comparison Procedure
2013/3/4
A competitive co-evolutionary Multi-Objective Genetic Algorithm (cc-MOGA) was used to approximate a Pareto front of efficient silvicultural regimes for Eucalyptus fastigata. The three objectives to be...
Effect of drip irrigation circuits design and lateral line length on: II-flow velocity and velocity head
Drip Irrigation Circuit Laterals Flow Head Velocity
2013/2/28
The objectives of the work were to study the effect of drip irrigation circuits (DIC) and lateral lines lengths (LLL) on: Flow velocity (FV) and velocity head (VH). Laboratory tests were conducted at ...
Soil reinforcement by a root system and its effects on sediment yield in response to concentrated flow in the loess plateau
Root Soil Properties Soil Erosion Sediment Yield Loess Plateau
2013/3/4
The importance of roots in soil conservation has long been underestimated due to a lack of sys-tematic studies conducted to evaluate root dis-tribution patterns and their effects on soil ero-sion. Cur...
Assessment of debris flow magnitude in small catchments of the lombardy alps: the val gola case study
Val Gola Catchment Debris Flow Magnitude Assessment Frequency Analysis
2013/3/4
Debris flows are among the most destructive of all water-related disasters. They mainly affect mountain areas in a wide range of morpho- climatic environments. Therefore, accurate pre-diction of their...
Application of a geographical information system (GIS) based hydrological model for flow prediction in Gorganrood river basin, Iran
WetSpa model distributed model geographical information system flow prediction
2011/2/22
In this paper a spatially distributed hydrologic model (WetSpa) is used to estimate daily river water discharge in Gorganrood river basin, Iran. The model combines topography, land use and soil maps, ...
The effects of different distributor head types, air velocities and fertilizing rates on flow evenness for some fertilizers
Air velocity distributor head fertilizing rate flow evenness fertilizer
2011/1/12
In this study, three different types of distributor head (T, funnel and Y) were tested at three air velocities of 26, 31 and 36 ms-1, and three different fertilizing rates were selected as 12, 16 and ...
The effects of different distributor head types, air velocities and fertilizing rates on flow evenness for some fertilizers
Air velocity distributor head fertilizing rate flow evenness fertilizer
2011/1/12
In this study, three different types of distributor head (T, funnel and Y) were tested at three air velocities of 26, 31 and 36 ms-1, and three different fertilizing rates were selected as 12, 16 and ...