Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 18
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
A microeconomic model of discarding behaviour ArchiMer
Macher, Claire; Guyader, Olivier; Boncoeur, Jean.
This paper proposes a formal analysis of the discarding issue including the sorting labour costs. Empirical evidences from an application to the Nephrops fishery in the Bay of Biscay show that sorting is an important time consuming activity on board and a factor of discarding. However existing literature does not explicitly take into account the sorting activity and mainly focus on quota and catch constraints. The discarding model described in the paper includes sorting as a factor explaining discards. The costs of sorting landings and the time to sort them are included in the approach. The model is developed for one species studied at a tow scale with the assumption that catches are exogenous. It is shown that taking sorting costs into account, discarding...
Tipo: Text Palavras-chave: Discarding behaviour; Sorting; Microeconomic model; Nephrops fishery; Effort constraints.
Ano: 2006 URL: https://archimer.ifremer.fr/doc/00511/62306/66554.pdf
Imagem não selecionada

Imprime registro no formato completo
An Equilibrium Model of Sorting in an Urban Housing Market: The Causes and Consequences of Residential Segregation AgEcon
Bayer, Patrick; McMillan, Robert; Rueben, Kim.
This paper presents a new equilibrium framework for analyzing economic and policy questions related to the sorting of households within a large metropolitan area. We estimate the model using restricted-access Census data that precisely characterize residential and employment locations for households the San Francisco Bay Area, yielding accurate measures of preferences for a wide variety of housing and neighborhood attributes across different types of household. We use these estimates to explore the causes and consequences of racial segregation in general equilibrium. Our results indicate that, given the preference structure of households in the Bay Area, the elimination of racial differences in income and wealth would significantly increase the residential...
Tipo: Working or Discussion Paper Palavras-chave: Segregation; Sorting; Housing markets; Locational equilibrium; Residential choice; Discrete choice; Labor and Human Capital; Public Economics; H0; J7; R0; R2.
Ano: 2003 URL: http://purl.umn.edu/28503
Imagem não selecionada

Imprime registro no formato completo
Avaliação sensorial de bebidas de cafés robusta oriundas do estado de Rondônia através da metodologia sorting aplicada com consumidores. Repositório Alice
ALCANTARA, M.; SÁ, D. de G. C. F. de; MATTOS, C. T. G. B.; ALVES, E. A..
2016
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Sorting; Estudo de consumidor; Coffea canephora; Análise sensorial.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1057728
Imagem não selecionada

Imprime registro no formato completo
Effect of cleaning, sorting and milling processes in wheat mycotoxin content. Repositório Alice
TIBOLA, C. S.; FERNANDES, J. M. C.; GUARIENTI, E. M..
bitstream/item/166716/1/ID44165-2016v60p174FoodControl.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Trigo; Armazenamento de alimento; Micotoxina; Limpeza de semente; Wheat; Food storage; Mycotoxins; Deoxynivalenol; Cleaning; Sorting; Milling.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1079732
Imagem não selecionada

Imprime registro no formato completo
Evaluation of a Non-Destructive Impact Sensor to Determine On-Line Fruit Firmness Chilean J. Agric. Res.
Homer,Ian; García-Ramos,Francisco Javier; Ortiz-Cañavate,Jaime; Ruiz-Altisent,Margarita.
A non-destructive impact sensor to measure on-line fruit firmness was evaluated. This sensor is an adaptation of a static model used in the laboratory to measure fruit quality and was installed in an experimental fruit packing line with a commercial sizer chain. The firmness index is related to the acceleration-time curve supplied by an accelerometer attached to an impacting arm. The main objective of this study was to evaluate sensor performance and sources of variation. We made classification trials on three fruits: peaches (Prunus persica (L.) Batsch), apples (Malus domestica Borkh.), and pears (Pyrus communis L.), as well as working trials, such as placing the fruit, orientation, and others. The sensor works correctly at a speed of 7 fruits s-1 (0.63 m...
Tipo: Journal article Palavras-chave: Packing line; Fruit quality; Peach; Low-energy impact; Sorting.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000100007
Imagem não selecionada

Imprime registro no formato completo
Experimental modeling of orange settling depth in water CIGR Journal
kheiralipour, Kamran; Kakaee, Mehdi; Nouri, Behzad.
Settling depth of orange fruits and vegetables with the density lower than the density of water is an important hydrodynamic property important in hydraulic sorting and transporting. In this research, settling depth of orange fruit with regular shapes was experimentally modeled. The considered parameters in multivariate modeling were fruit characteristics, density, mass and volume, and dropping height of the fruits. The characteristics were determined by standard methods. The settling depth was determined by a water column and a digital camera. The models were obtained in MATLAB software. The best model was based on the density, volume and dropping height with coefficient of determination (R2) and mean squire error (MSE) of 0.89 and 4.67×10-7, respectively.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Orange; Experimental Modeling; Settling Depth; Sorting; Physical Characteristics..
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3184
Imagem não selecionada

Imprime registro no formato completo
Exploring the best model for sorting Blood orange using ANFIS method CIGR Journal
Sabzi, Sajad; Javadikia, Payam; Rabbani, Hekmat; Adelkhani, Ali; Naderloo, Leila.
OranOrange has abundant nutritional properties and is consumed worldwide.  Sorting oranges of different masses based on their physical traits could help reduce packaging and transportation cost.  The ‘Blood’ cultivar of Iranian oranges from Kermanshah province of Iran (7.03 °E 4.22 °N) was used in this study.  100 samples were randomly selected.  During the two-day experiment, all measurements were carried out inside the laboratory at mean temperature of 24°C.  In this study, some physical properties of ‘Blood’ orange were measured, such as length, width, thickness, volume, mass, mean value of geometric diameter, sphericity and projected area.  ANFIS and linear regression models were employed to predict the mass based on sphericity and mean of projected...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Linear regression; Orange; Packaging; Physical properties; Sorting.
Ano: 2013 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2348
Imagem não selecionada

Imprime registro no formato completo
GENETIC INFORMATION IN AGRICULTURAL PRODUCTIVITY AND PRODUCT DEVELOPMENT AgEcon
Hennessy, David A.; Miranowski, John A.; Babcock, Bruce A..
A prominent facet of recent changes in agriculture has been the advent of precision breeding techniques. Another has been an increase in the level of information inputs and outputs associated with agricultural production. This paper identifies ways in which these features may complement in expanding the variety of processed products, the level of productivity, and the rate of change in productivity. Using a martingale concept of "more information," we identify conditions under which more information increases the incentives to invest and engage in product differentiation. A theory on how genetic uniformity can enhance the rate of learning through process experimentation, and so the rate of technical change, is also developed.
Tipo: Working or Discussion Paper Palavras-chave: Experimentation; Genetics; Information; Martingale; Sorting; Uniformity; Value added; Productivity Analysis.
Ano: 2003 URL: http://purl.umn.edu/18598
Imagem não selecionada

Imprime registro no formato completo
Informed Control Over Inputs and Extent of Industrial Processing AgEcon
Hennessy, David A..
Stylized facts regarding the industrial process include emphases on obtaining information about and control over the quality of raw materials. We provide a model that establishes conditions under which informed control involves ensuring uniformity in inputs and increased uniformity encourages more extensive processing. We show when the Boltzmann-Shannon entropy statistic is an appropriate measure of uniformity.
Tipo: Working or Discussion Paper Palavras-chave: Entropy; Homogeneous inputs; Industrialization; Information technologies; Sorting; Industrial Organization.
Ano: 2005 URL: http://purl.umn.edu/18580
Imagem não selecionada

Imprime registro no formato completo
Production Inefficiency in Fed Cattle Marketing and the Value of Sorting Pens into Alternative Marketing Groups Using Ultrasound Technology AgEcon
Koontz, Stephen R.; Hoag, Dana L.; Brethour, John R.; Walker, Jodine L..
The cattle industry batch markets animals in pens. Because of this, animals within any one pen can be both underfed and overfed. Thus, there is a production inefficiency associated with batch marketing. We simulate the value of sorting animals through weight and ultrasound measurements from original pens into smaller alternative marketing groups. Sorting exploits the production inefficiency and enables cattle feeding enterprises to avoid meat quality discounts, capture premiums, more efficiently use feed resources, and increase returns. The value of sorting is between $15 and $25 per head, with declining marginal returns as the number of sort groups increases.
Tipo: Journal Article Palavras-chave: Cattle feeding; Production efficiency; Simulation; Sorting; Value-based marketing; Ultrasound; Agribusiness; Livestock Production/Industries; Marketing; Research and Development/Tech Change/Emerging Technologies; C15; D21; D23; Q12.
Ano: 2008 URL: http://purl.umn.edu/47266
Imagem não selecionada

Imprime registro no formato completo
Seleção de tamanho de partículas por bovinos Nelore em confinamento e sua relação com características de carcaça. Repositório Alice
SILVA, S. R. C.; EIFERT, E. da C.; MAGNABOSCO, C. de U.; MIYAGI, E. S.; MOREIRA, L. da C.; LOPES, F. B.; CARVALHO, M. V. S. de; PIRES, E. S..
Pesquisas apresentam a existência de variação individual em relação ao comportamento alimentar de bovinos confinados, mesmo estando na mesma baia de confinamento. Objetivou-se avaliar se a seletividade por tamanho de partícula no cocho tem relação com as características de carcaça de bovinos Nelore Mocho. O experimento foi realizado na área de confinamento de junho a novembro de 2012. Foram utilizados 18 animais, com idade e peso médio iniciais de 21 meses e 335 kg, respectivamente, provenientes do rebanho da marca OB. Os animais foram abatidos com idade e o peso médio de 23 meses e 535 kg, e espessura de gordura mínima de 5 mm. Foi mantido um registro diário do ofertado e das sobras recolhidas, por animal. Avaliou-se o tamanho médio de partículas...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Consumo alimentar; Seleção; Sobras; Rendimento; Espessura de gordura; Zebu; Feed intake; Refuses; Backfat thickness; Slaughter yield; Sorting.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1007874
Imagem não selecionada

Imprime registro no formato completo
Sort a list of items AgEcon
Royston, Patrick.
The command listsort for sorting the contents of a set of local macros is introduced and illustrated.
Tipo: Journal Article Palavras-chave: Sorting; Local macros; Research Methods/ Statistical Methods.
Ano: 2001 URL: http://purl.umn.edu/115941
Imagem não selecionada

Imprime registro no formato completo
Speaking Stata: How to move step by: step AgEcon
Cox, Nicholas J..
The by varlist: construct is reviewed, showing how it can be used to tackle a variety of problems with group structure. These range from simply doing some calculations for each of several groups of observations to doing more advanced manipulations making use of the fact that with this construct, subscripts and the built-ins _n and _N are all interpreted within groups. A fairly complete tutorial on numerical evaluation of true and false conditions is included.
Tipo: Journal Article Palavras-chave: By; Sorting; Subscripts; True and false; _n; _N; Research Methods/ Statistical Methods.
Ano: 2002 URL: http://purl.umn.edu/115953
Imagem não selecionada

Imprime registro no formato completo
Speaking Stata: Rowwise AgEcon
Cox, Nicholas J..
Stata’s main data model treats observations in rows and variables in columns quite differently, but rowwise problems also arise that require working against the grain. This column shows how to exploit existing functions and egen functions when they exist and apply to such problems. It offers advice on how to build your own loops, egen functions, or programs when needed. Mata provides especially convenient tools for constructing many such functions and programs, centered on putting selected data into matrices and then processing each observation as a separate vector. Two programs, rowsort and rowranks, are formally published with this column.
Tipo: Article Palavras-chave: Rowsort; Rowranks; Rows; Functions; Loops; Egen; Mata; Minimum; Maximum; Median; Any; All; Distinct values; Sorting; Ranking; Research Methods/ Statistical Methods.
Ano: 2009 URL: http://purl.umn.edu/122706
Imagem não selecionada

Imprime registro no formato completo
The Role of Mathematical and Verbal Skills on the Returns to Graduate and Professional Education AgEcon
Song, Moohoun; Orazem, Peter F.; Wohlgemuth, Darin.
Students in majors with higher average quantitative GRE scores are less likely to attend graduate school while students in majors with higher average verbal GRE scores are more likely to attend graduate school. This sorting effect means that students whose cognitive skills are associated with lower earnings at the bachelor’s level are the most likely to attend graduate school. As a result, there is a substantial downward bias in estimated returns to graduate education. Correcting for the sorting effect raises estimated annualized returns to a Master’s or doctoral degree from about 5% to 7.3% and 12.8% respectively. Estimated returns to professional degrees rise from 13.9% to 16.6%. These findings correspond to a large increase in relative earnings received...
Tipo: Working or Discussion Paper Palavras-chave: Postgraduate; Rate of return; Demand for schooling; Quantitative skills; Qualitative skills; Sorting; Labor and Human Capital; J3.
Ano: 2007 URL: http://purl.umn.edu/7346
Imagem não selecionada

Imprime registro no formato completo
What Drives Racial Segregation? New Evidence Using Census Microdata AgEcon
Bayer, Patrick; McMillan, Robert; Rueben, Kim.
This paper sheds new light on the forces that drive residential segregation on the basis of race, assessing the extent to which across-race differences in other household characteristics can explain a significant portion of observed racial segregation. The central contribution of the analysis is to provide a transparent new measurement framework for understanding segregation patterns. This framework allows researchers to characterize patterns of segregation, to decompose them in meaningful ways, and to carry out partial equilibrium counterfactuals that illuminate the contributions of a variety of non-race characteristics in driving segregation. We illustrate our approach using restricted micro-Census data from the San Francisco Bay Area that provide a rich...
Tipo: Working or Discussion Paper Palavras-chave: Residential segregation; Racial segregation; Sorting; Housing markets; Labor and Human Capital; H0; J7; R0; R2.
Ano: 2003 URL: http://purl.umn.edu/28435
Imagem não selecionada

Imprime registro no formato completo
Why Do Rural Firms Live Longer? AgEcon
Yu, Li; Orazem, Peter F.; Jolly, Robert W..
Rural firms have a higher survival rate than urban firms. Over the first 13 years after firm entry, the hazard rate for firm exits is persistently higher for urban firms. While differences in firm attributes explain some of the rural-urban gap in firm survival, rural firms retain a survival advantage 18.5% greater than observationally equivalent urban firms. We argue that in competitive markets, the remaining survival advantage for rural firms must be attributable to unobserved factors that must be known at the time of entry. A plausible candidate for such a factor is thinner markets for the capital of failed rural firms. The implied lower salvage value of rural firms suggests that firms sorting into rural markets must have a higher probability of success...
Tipo: Working or Discussion Paper Palavras-chave: Rural; Urban; Entry; Exit; Survival; Sorting; Salvage value; Community/Rural/Urban Development; Demand and Price Analysis; Financial Economics; Industrial Organization; Labor and Human Capital; Marketing; Production Economics; Productivity Analysis; Risk and Uncertainty; O18; L21; D92.
Ano: 2009 URL: http://purl.umn.edu/54081
Imagem não selecionada

Imprime registro no formato completo
荔枝採收後處理機械之研發 Taiwan Agricultural Research Institute
陸龍虎; 蔡致榮; 梁連勝; 徐武煥; 王怡玎; 鄧永興; Lung-Hu Lu; Jyh-Rong Tsay; Lien-Sheng Liang; Wu-Huann Shyu; Yee-Ting Wang; Yong-Hsing Teng.
[[abstract]]本文旨在敘述荔枝脫粒、果粒分級及保鮮小包裝等一貫作業處理機械與技術之研 發,其目標為節省人工、降低生產成本、確保貯運品質,並提升新鮮荔枝(果粒)之內、 外銷市場競爭力。經研製與數度試驗改良後,已完成齒桿型荔枝脫粒機之研製、脫粒機 與圓盤式分級機之整併、計數與計重式裝填裝置和輸送系統之研製,以及荔枝果粒保鮮 小包裝機械之改良等。荔枝採收後處理機經測試效果良好,脫粒分級良品率、損傷率與 帶梗率之平均值分別為 91.28、0.72 與8.01%,其包裝作業能力為360 盒/小時。果粒經 保鮮膜小包裝處理後,其樣品於溫度5°C,相對濕度90~95%之條件下至少可貯存二週, 此時果皮褐化比率約30%。
Palavras-chave: 荔枝; 脫粒; 分級; 處理機械 Litchi; Snapping; Sorting; Handling machine [[classification]]8.
Ano: 2005
Registros recuperados: 18
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional