Search results for " Product"
showing 10 items of 7368 documents
Comparing proton momentum distributions in A = 2 and 3 nuclei via 2H 3H and 3He (e,e′p) measurements
2019
We report the first measurement of the $(e,e'p)$ reaction cross-section ratios for Helium-3 ($^3$He), Tritium ($^3$H), and Deuterium ($d$). The measurement covered a missing momentum range of $40 \le p_{miss} \le 550$ MeV$/c$, at large momentum transfer ($\langle Q^2 \rangle \approx 1.9$ (GeV$/c$)$^2$) and $x_B>1$, which minimized contributions from non quasi-elastic (QE) reaction mechanisms. The data is compared with plane-wave impulse approximation (PWIA) calculations using realistic spectral functions and momentum distributions. The measured and PWIA-calculated cross-section ratios for $^3$He$/d$ and $^3$H$/d$ extend to just above the typical nucleon Fermi-momentum ($k_F \approx 250$ …
Economic Sustainability of Italian Greenhouse Cherry Tomato
2014
Greenhouse tomato cultivation plays an important role in Sicily, being the primary production area in Italy, due to its favorable pedo-climatic conditions that permit extra-seasonal productions. In Sicily, more than half of greenhouse tomato production is derived from the Province of Ragusa on the southeastern coast, where especially cherry tomato typologies are cultivated. Over the last decade, the Ragusa Province has registered a decrease both in terms of greenhouse tomato area and harvested production due to several structural problems that would require restructuring of the tomato supply chain. Thus, since recognition of real costs and profitability of tomato growing is a vital issue, b…
Planning Production Preparation Processesusing The Critical Chain Method
2017
This paper explains the usefulness of critical chain project management for planning production preparation processes. A synthesis of issues of project management and production preparation processes is presented, and a conceptual model of concurrent design processes using the critical chain method is developed. The proposed model of planning production preparation processes enables improving the effectiveness and economic efficiency of new product development. The main assessment indicators of efficient project management in production preparation are: shortening the preparation time of new product development, rational use of resources, and reducing the risk of failure. The proposed appro…
Peut-on concilier un faible usage de pesticides, une bonne performance économique et environnementale ? Analyse d’un réseau national de fermes de dém…
2017
Feeding an increasing world population with a sustainable agriculture is one of the greatest challenges of this century. The reduction of the reliance on pesticides is a critical aspect in this quest for sustainability. Whether cropping systems with reduced reliance on pesticides would be able to reconcile the various components of sustainability remains however a matter of debate. Are they as productive and profitable than current mainstream cropping systems? Here the objective is to study the feasibility of a reduced reliance on pesticides in France. We used a unique dataset from a national network of more than thousand arable commercial farms between 2009 and 2011. Launched in the framew…
Analysing the relationship between yields and farmers' incomes to help the design of more sustainable cropping systems
2022
Farmers often grow only the few high-yielding crops in the area, and target maximum yields through high levels of inputs. These practices are based on the assumption of a positive relationship between productivity and profitability over a wide range of cropping systems (Woo et al., 2020; Erythrina et al., 2021). Part of the correlation between productivity and profitability could be related to differences in production situation and therefore yield potential, i.e. characteristics that do not depend on farmers’ decisions. For a given production situation, the systems with the highest profitability and the best environmental sustainability could be systems with moderate yields. The objective …
LOS COSTES, GASTOS, BUROCRACIA E INCREMENTO DE PRODUCTIVIDAD POR LA CERTIFICACIÓN EN LA NORMA ISO 9000 EN LA EMPRESAS CERTIFICADAS EN LA NORMA ISO 90…
2005
Una pregunta que nos podemos hacer respecto a la certificación en la norma ISO 9000 de calidad es que si sirve para algo o si sólo es plasmar por escrito lo que se hace habitualmente en la empresa, esta pregunta la hemos realizado a las empresas certificadas de la Comunidad Valencia, junto con otras para averiguar si la implantación origina un incremento de productividad, y la importancia que le dan las empresas a los costes cuando se decide implantar los sistemas de calidad. Los resultados que hemos obtenido son que en la mayor parte de los casos la implantación de los sistemas de calidad viene acompañada de un incremento de productividad One of the question we can ask ourseselves due to t…
Trends and Drivers of Productivity Growth in Latvia
2019
Proceedings of the 11th international scientific conference "New Challenges of Economic and Business Development – 2019: Incentives for Sustainable Economic Growth" organized by the Faculty of Business, Management and Economics (University of Latvia), 16 - 18 of May, 2019.
Acting Agentically at Work: Developing a Short Measure of Professional Agency
2021
Although professional agency has become an increasingly crucial issue in work organizations, investigators lack a brief instrument to measure it. This paper introduces a short measure to explore professional agency at work. Our aim was to shorten the original 17-item Professional Agency Measure, while also exploring its usability for cross-validating questionnaire datasets, and investigating the relationship between professional agency and work engagement. Three dimensions of professional agency emerged, with three items per dimension, across the domains of healthcare, real estate services, and information technology (all within Finland). All the dimensions (Influencing at work, Participati…
Análisis bibliométrico de la producción científica de la Universidad Politécnica de Valencia 1973-2001
2006
This article studies the scope of Polytechnic University of Valencia through the analysis of its scientific output since 1973 until 2001 based on the journal articles and conference papers available in the most relevant national and international databases. We analyze its productivity and time layout, according to the kind of document and language, as well as the scientific output by authors and departments, showing those most outstanding regarding productivity. On the other hand, we have researched the distribution and layout of scientific literature, pointing out the most used journals. The results show as the most relevant aspects a wide range of themes covered, the constant annual incre…
Mapping productivity and essential biophysical parameters of cultivated tropical grasslands from sentinel-2 imagery.
2020
Nitrogen (N) is the main nutrient element that maintains productivity in forages