Search results for "production [diffraction]"

Appropriate technology in a Solovian nonlinear growth model

2007

We propose a Solovian growth model with a convex-concave production function and international technological spillovers. We test the empirical implications of the model, analysing the effects of the productivity slowdown that followed the oil shocks of the 1970s. We argue that this slowdown, altering the world income distribution, affected the pattern of international technological spillovers, taking the poorest countries further away from the technological leaders, and therefore unable to exploit their technologies. The result is the emergence of a poverty trap for low-income countries.

Approches quantitatives de la production de fer sur le site hallstattien de Bragny-sur-Saône (Saône-et-Loire)

2007

This study is based on an inventory of iron knives dated from the 8th to the 5th centuries BC and discovered in funerary and settlement sites in the South-West of France. The corpus consists of 608 artefacts. We established a typology allowing us to present a chronological and spatial distribution of each type. We then tried to determine the functions of the knives according to their type and their length. For those discovered in graves other objects in the grave assemblage were used as an additional criterion. When the funerary context was very clearly defined, we tried to determine the function, in the grave itself, of the knives.

APPLICATION OF SELECTED LACTIC ACID BACTERIA FOR THE YEAR-ROUND PRODUCTION OF VASTEDDALIKE CHEESE

2014

Potential production of biogas from prinkly pear (opuntia ficus-indica L.) in sicilian uncultivated areas

2017

The aim of this work is to evaluate the potential production of biogas and, indirectly, biomethane or electric and thermal energy, from prinkly pear (Opuntia ficus-indica L.), to be grown in a part of Sicilian uncultivated areas and co-digested together with the available livestock manure and slurry. In order to increase the Renewable Energy Sources (RES) and reduce the dependency from fossil ones, the conversion of biomass into biogas through Anaerobic Digestion (AD) process is paramount for producing biomethane, to be used as fuel for means of transport and agricultural machines or heating, or electric and thermal energy through Combined Heat and Power (CHP) plants. Moreover, the digestat…

Editorial to the ‘Special Issue—Solar Photovoltaic System Engineering’ of AIMS Energy

2020

DISCRIMINATIONS ETHNIQUES DANS L’ACCES AU LOGEMENT: UNE EXPERIMENTATION EN NOUVELLE-CALEDONIE

2016

Dans cette étude, nous mesurons les discriminations dans l’accès au logement dans le GrandNouméa, selon l’origine ethnique, en distinguant les origines kanak et européennes, et selon lequartier de résidence. Entre octobre 2015 et février 2016, nous avons répondu à 342 annonces enprésentant 4 candidats à la location pour chaque annonce, soit 1368 réponses à des annoncesimmobilières. Deux de nos candidats signalent par leur patronyme leur origine kanak, deuxsignalent une origine européenne. Dans chaque paire, un candidat donne un signal de stabilitéfinancière et professionnelle en indiquant explicitement qu’il est fonctionnaire. L’étude consiste àexploiter statistiquement ces données en les c…

Comparative study between different methods for the efficiency of the production activity in the wood industry

2017

Generally speaking, the quality and cost of goods and in particular of the wood products is a decisive condition in their sales on the market, attracting buyers to satisfy their wishes and requirements. Starting from the general idea, by which it is considered that the manufacturing activity is effective if production is obtained at maximum quality with a low (minimum) cost, or when the revenue from the sale of products exceeds the market expenditure which is necessary to achieve it, this research article aims to study ways to make production more efficient by methods which could also be applied in the wood industry, by presenting a comparative study on production optimization methods in th…

Sexual Exploitation from Origin Countries to Destination Countries

2020

Human trafficking tends to follow a pattern of phases, such as recruitment, transfer, exploitation, protection, and sometimes re-trafficking. This chapter gives the opportunity for the reader to understand the influence of several factors within human trafficking at a geographical level, from the origin and transit country to the destination country, as well as at a cultural, social, and criminological level. All factors are considered according to victim nationality, in this case Romanian and Nigerian, including the vulnerable factors created by the criminal groups. In this chapter, the difference of citizenship between Nigerian women, who are third-country nationals, and Romanian women, w…

Assessment of the production costs curve in micro-grids: a comparative analysis

2012

In micro-grids, due to their small scale, there is commonly only one power supplier. A competitive wholesale market hardly exists so the question about how to consider market issues for small producers within micro-grids arises. On the other hand, the specific features of micro-grids where load and generated power hardly find a balance, require that customers take part to regulation issues, maybe using demand response programs. In this paper, price responsive policies and its programs are discussed to answer this question. A case study of a micro-grid with one microturbine and two photovoltaic generators in Italy is analyzed to assess the overall production cost in order to build a price re…

The beta-delayed proton and gamma decay of 27P for nuclear astrophysics

2013

The creation site of 26Al is still under debate. It is thought to be produced in hydrogen burning and in explosive helium burning in novae and supernovae, and possibly also in the H-burning in outer shells of red giant stars. Also, the reactions for its creation or destruction are not completely known. When 26Al is created in novae, the reaction chain is: 24Mg(p, γ) 25Al(β +ν) 25Mg(p, γ) 26Al, but this chain can be by-passed by another chain, 25Al(p, γ) 26Si(p, γ) 27P and it can also be destroyed directly. The reaction 26mAl(p, γ) 27Si∗ is another avenue to bypass the production of 26Al and it is dominated by resonant capture. We find and study these resonances by an indirect method, throug…