|
|
|
|
|
| Cerruto, Emanuele; Aglieco, Claudia; Gottschalk, Klaus; Surdilovic, Jelena; Manetto, Giuseppe; Geyer, Martin. |
| Mechanical impact on fresh agriculture commodities may be a criterial issue during mechanical processes such as grading, sorting, conveying, packing or transport. The applications of electronic measuring devices in form of artificial fruits like ‘Instrumented Spheres’ (IS) are an aid to quantify influences of mechanical impact on the value of fruit, vegetable and potato. Additionally, modelling and simulation of impact on fruits helps to identify those influencing parameters. In this study, modelling and simulation runs were performed based on the Finite Element Method (FEM). For dropping tests an ‘Acceleration Measuring Unit’ (AMU) was used which can be implemented into real or artificial fruits to measure the accelerations upon impact. The test stand was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Postharvest Technology Post-harvest; Fruit damage; Impact force; Impact acceleration; FEM. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3391 |
| |
|
|
| Osei, Edward. |
| Alternative manure application rates represent an integral part of current nutrient management efforts on animal feeding operations (AFOs). Previous studies have indicated that lower manure application rates tend to increase farm production costs. In this study, the Comprehensive Economic and Environmental Optimization Tool - Macro Modeling System (CEEOT-MMS) was used to evaluate the farm-level economic implications of alternative manure application rates for all AFOs in the 48 contiguous states of the U.S. Representative farms derived through statistical disaggregation of national databases and K-means clustering were simulated within the the Farm-level Economic Model (FEM) to determine the economic impacts of four manure application rates. The highest... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: FEM; CEEOT-MMS; Animal feeding operations; Clustering; Costs; Manure; Phosphorus; Crop Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/6240 |
| |
|
|
| Yang,Dejun; Bian,Zhengfu; Zhang,Kefeng; Xiong,Jibing; Lei,Shaogang. |
| ABSTRACT Simulations for root growth, crop growth, and N uptake in agro-hydrological models are of significant concern to researchers. SWMS_2D is one of the most widely used physical hydrologically related models. This model solves equations that govern soil-water movement by the finite element method, and has a public access source code. Incorporating key agricultural components into the SWMS_2D model is of practical importance, especially for modeling some critical cereal crops such as winter wheat. We added root growth, crop growth, and N uptake modules into SWMS_2D. The root growth model had two sub-models, one for root penetration and the other for root length distribution. The crop growth model used was adapted from EU-ROTATE_N, linked to the N... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agro-hydrological model; FEM; Root length distribution; Soil water content. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100520 |
| |
|
|
|
