bluuebunny/crossref_metadata_2025 huggingface dataset:
Utility of Acoustic Detection in Hydraulic Machinery
Authors: G. Ciaravino  , L. Ciaravino
Published: May 2017

Optimised energy production from hydraulic machinery is dependant both on the care taken during the design and construction phases and on the ability to ensure optimal operating conditions. When machinery is affected by cavitation, performance levels fall and can rapidly deteriorate altogether, a phenomenon which makes it essential to identify the onset of cavitation using effective detection methods. In the present paper the analysis conducted on the basis of acoustic measurements (characterized by non intrusive technology) displays a particular sensitivity, making it suitable for detecting the phases of cavitation onset. The experimental measurements point out the presence of a marked increase in the spectral power density curve of the noise signal, especially in the high frequency range. Moreover the acoustic method also makes it possible to detect different nuclei of cavitation in the machinery under the same operating conditions (which is not achieved by other methods). These characteristics of the acoustic method are of particular interest to managers of working systems (with a view to verifying whether the working conditions can trigger cavitation) as well as to the manufacturers of hydraulic machinery (both in the design and in the production phase)
Simulation and optimization of control parameters in energy hybrid filter
Authors: D. Mazur
Published: May 2017

Two energy hybrid filter systems were considered which reduce level of higher mains current harmonics. An advantage of such system is low demanded active filter power because in complements only passive filter operation. The first considered system has inverter switched on in series with shunt passive filter. Through optimization of control parameters it is able to eliminate specific higher mains currents harmonics left by passive filter in a point by point way. The other tested system includes two inverters which are switched on to the system in series and shunt way. Their operation is to reduce higher mains current harmonics induced by higher load currents harmonics in a continuous way. The simulations carried out proved correct operation of the system.
Analysis of Generalized Non-Active Power Theory for Compensation of Non-Periodic Disturbances
Authors: Josef Tlustý  , Jan Svec  , Josep Balcells Sendra  , Viktor Valouch
Published: May 2017

The   principle   and   analysis   of   usage   of   the generalized     non-active     power     theory     for     the     parallel compensation  of  periodic  and  non-periodic  current  disturbances is   presented   in   the   paper.   A   non-linear   unbalanced   load generating  periodic  as  well  as  non-periodic  stochastic  currents connected  to  an  unsymmetrical  non-sinusoidal  voltage  source  is considered.
Risk assessment and lightning protection for PV systems and solar power plants
Authors: Roberto Pomponi  , Riccardo Tommasini
Published: May 2017

Lightning strikes can affect photovoltaic generators and their exposed installation sites as well as the sensitive electronics of the inverter. Therefore, it is necessary, to estimate the risk by lightning strikes, and to take these results into account for the design. IEC (EN) 62305-2 states procedures and data for the calculation of the risk resulting from lightning strikes into structures and for the choice of lightning protection systems. Actually, the technical guidelines for installation suggest protecting with SPD’s (surge protective device) both the DC and AC sides of the PV plant. The aim of this paper is to estimate voltages due to lightning discharges and to determine the effective need of lightning protection measures on the basis of the risk analysis and the protection costs.
THERMAL OPTIMIZATION THE WIDTH OF LIGHT ABSORBING PLATE OF SHEET-TUBE SOLAR ABSORBERS FOR PREHEATING OF FEED WATER IN COMBINED SOLAR- FUEL SYSTEMS OF HOT WATER SUPPLY
Authors: N.R.Avezova  , R.R.Avezov  , J.S.Akhatov  , K.A.Samiev  , A.L.Aguera
Published: May 2017

In  the  current  paper  presented  the  results  of  computational  studies  on  the  thermal  optimization  the  width  of the plate  of sheet-tube solar absorber to  preheat  feed water  to the combined solar-fuel hot water systems, in which their maximum heat with minimum weight.
Developing a Platform for Energy Efficiency Monitoring
Authors: J. Lourenço  , N. Neves  , F. Reis  , N. Valente  , N. Valente
Published: May 2017

This paper describes the R&D project that CIDISPGaya and WideSkills are developing in the field of renewable energies and the support of monitoring technologies for efficiency improvement. The aim of the project is to develop a prototype that enables a ubiquos access to a set of functionalities in a conventional and renewable energy facility.
Fuzzy Logic Based Power Management Strategy for Plug-in Hybrid Electric Vehicles with Parallel Configuration
Authors: Hasan Alipour  , Behzad Asaei  , Ghias Farivar
Published: May 2017

In this paper, a new power management strategy for parallel plug-in hybrid electric vehicles is introduced. Using the proposed strategy the fuel consumption of the vehicle would be reduced. The proposed power management strategy is simple, and the required computational burden is not heavy. Hence, it can be used in real time applications. Estimating, the trip distance using GPS technology, the controller can manage the battery state of charge. The affectivity of the introduced approach is investigated through conducted simulations in ADVISOR environment. The obtained results are validated using a simple rule base power management strategy.
Cloud Computing for Renewable Power Systems
Authors: M. Geberslassie  , B. Bitzer
Published: May 2017

Renewable energy systems are playing a main role in the future power systems. Therefore, the future electricity infrastructure must support the integration of the existing conventional power system with varies renewable energy resources, which are widely dispersed power sources. This interconnected power pools or grid needs a real-time monitoring, controlling and high computational power. There are many devices connected to the grid enable us to exchange information with power systems. This paper discussed the computation power and the performance of the cloud computing platform by implementing a lab demonstrator which is a load forecasting application in energy management field. Moreover, it announces an insight to the application of cloud computing in the next generation power systems.
Impedance-Based Methods for Detection of Voltage Sag Sources
Authors: Boštjan Polajžer  , Gorazd Štumberger  , Drago Dolinar
Published: May 2017

The research reflects impedance-based methods for detection of voltage sag sources, whereas measured voltages and currents are treated as average functions, and also as instantaneous values. Evaluation of the discussed methods has been performed by applying extensive numerical simulations and field testing. The obtained results show that all methods are very effective in the cases of symmetrical voltage sags. When instantaneous values are applied the best effectiveness is obtained also for asymmetrical voltage sags.
EOLMAP: A web tool to assess the wind resource over Spain
Authors: R. Lorente-Plazas  , J.P. Montávez  , S. Jerez  , J. J. Gómez-Navarro  , P. Jiménez-Guerrero  , P. A. Jiméne  , J.A. García-Valero  , F. Gomáriz-Castillo  , F. Alonso-Sarría
Published: May 2017

A wind data base and a web tool have been developed to estimate the wind power over the Iberian Peninsula (IP). This tool also allows estimating the most appropriate Small Wind Turbine (SWT) for a given location. The wind database includes observational and simulated wind data. The simulated data consists on a 10 km hindcast, covering the period 1960-2007, generated with a Regional Climate Model (RCM) driven by ERA40. The observational data base has been built from hourly records encompassing the period 1999-2007 and includes more than 450 stations evenly distributed over Spain. A quality control has been applied to the data in order to assess the reliability of the observational data set. Although the web tool provides information which allows the users to estimate the reliability of the modelled data in the location of the interest, a previous general validation of the simulation has been performed. This previous validation indicates that most of the disagreements between simulation and observations are attributable to the too coarse spatial resolution of the regional model.
Coastal Sea Power. A proposal for Exploitation Wave Energy
Authors: R. Borrás  , R. Ferreiro Garcia  , F. Miguelez  , R. Rodriguez
Published: May 2017

This  paper  presents  an  alternative  to  the  converters  that currently are being used to harness the energy in the waves of  the  sea.  This  is  a  floating  structure,  with  two  dead-anchored  to  the  seabed,  suitable  to  be  located  near  the coast in an area with or without the existence of tides. The floating   cylinder   arranged   horizontally   following   the oscillations  of  the  sea  surface  and  transmitted  through arms, the movement of the machinery fitted inside a house mounted  on  the  structure.  In  the  machinery  converts  the reciprocating  motion  of  the  arms  in  an  unidirectional movement   to   impulse   along   the   axis   of   an   elastic accumulator  allows  continuous  rotary  motion  of  the  rotor of an electric generator, as a permanent magnet alternator. Being a floating structure can be accessed maintenance or repair from a boat into the house. Another characteistic of this proposal is that it does not possess elements that will work submerged due to this, watertight components do not need  necessarily  more  difficult  to  maintain  and  more expensive.
Energy self-sufficiency and sustainable development in a closed mountain area
Authors: M. De Carli  , S. Graci  , Y. Natalini  , Luigi Tonus  , Paola Agostini
Published: May 2017

The present paper presents the first results of a study for defining the environmental energy plan of the Province of Belluno, placed in a mountain territory in North-East of Italy. In the plan, the energy consumptions and the potential of renewable energy sources in this tipically mountainous area were first analyzed. The aim of the study was to identify the best strategies of intervention to ensure the sustainable development of the territory. The most energy-consuming sectors have been analyzed and some first possible response interventions have been proposed. The industrial and tertiary sectors have very few possible interventions worthy of note, but the residential sector can be greatly improved. At the same time, the field of energy production has been analyzed, the current state has been studied in detail and the improving potential has been evaluated, focusing on renewable energies, especially on small size hydroelectric power plant and on photovoltaic energy
The Strategic Importance of the Electric Transmission in a System Based on Primary Renewable Source
Authors: T. H. V. Silveira  , A. A. Bertoni  , D. M. Silva  , L. C. Fonseca  , A. F. V. Silveira  , A. W. F. V. Silveira
Published: May 2017

This article describes the characteristics of the Brazilian electric system, whose main generation source is hydroelectricity and how the country made stable and economic the supply of energy on a large scale, managing the uncertainties of this type of source. The study of how this country has been dealing with the variability of supply of each of their enterprises, using the storage capacity and deployment of the country's energy integration can be a source of inspiration for other countries on how to handle the various issues that arise in the integration between different energy sources
Effect of Differential Mass Flow Rate on the Thermal Performance of Double Duct Packed Bed Solar Air Heaters
Authors: Prashant Kumar
Published: May 2017

The present paper investigates the effect of differential air mass flow rate on the thermal performance of parallel pass packed bed solar air heater. The range air flow rates over which the parallel pass system yields higher thermal performance as compared to counter pass system have been identified and presented. The effect of fraction of total mass flow rate in the respective ducts of the parallel pass packed bed solar air heater has shown to be dominant parameter in determining the effective thermal efficiency of the heater.
Dealing with the Very Small: First Steps of a Picohydro Demonstration Project in an University Campus
Authors: Vicente Leite  , Tomás de Figueiredo  , Tiago Pinheiro  , Ângela Ferreira  , José Batista
Published: May 2017

This paper presents the implementation, project and design of a small run-of-river hydropower plant, designed for demonstration purposes, under a Project aimed to be a framework of wide spread dissemination of renewable energies and energy efficiency in an University Campus. The details of the hydroelectric power plant, from the project design until the final use of the produced electric energy, are described. The main requirements of the implementation are presented, with regards to the environmental footprint and topography of the site and the adopted solutions are also described. Considering the demonstration purposes, two different electrical systems were installed in the power house: stand-alone and grid-connected. The latter establishes a case study in the development and application of picohydro power plants as microgeneration units in the context of distributed generation systems. The evaluation of both systems is also presented, based on the experimental results obtained from tests experiments and from monitoring the first months of operation at the site.
Operation of the Brazilian Renewable Energy System
Authors: A. Bertoni  , G. Elias  , A. Silveira  , A. Fleury  , T. Silveira
Published: May 2017

This article describes in detail the operation of the Brazilian renewable energy system that is maybe the largest one in the planet. The Brazilian hydropower system is a system unique in the world because it hTas continental dimensions. Brazil has an 8.5 million square kilometers area. There is a complex net that is capable of delivering the country up to 104 GW (total power), among which about 84 GW are coming from hydroelectric power. More than 92% of the annual TWh consumed come from these hydro power plants. Coordinate the operation of this system is a somewhat singular task. That’s what is presented here.
Minimalistic approach of a complex and flexible teaching laboratory for photovoltaic energy conversion: experience from courses at the Kasetsart University in Bangkok and at GPEsolar (Technical University Berlin)
Authors: Th. Dittrich
Published: May 2017

A complex of more than ten laboratory tasks was developed complementary to lectures and seminars for teaching of principles of solar cells and their applications. The laboratory covers topics of basic characteristics, materials and types of solar cells as well as of characterization methods and applications in solar energy conversion and can be extended to research aspects. Students with different background can independently discover a certain aspect in the field of photovoltaic energy conversion within four hours. Tasks can be easily applied at universities in developed and developing countries and most of them can be reproduced at low cost. The mobile laboratory can be setup in a short time and is well suitable for changing places of teaching. The vision to implement related laboratory tasks into experimental interdisciplinary teaching centers for renewable energy at universities has been drawn.
The Hot Spot phenomena in Shadowed ENR System
Authors: H. Benis  , H. Ben cheikh el hocine  , A. Bouden  , M.Marir-Benabbas
Published: May 2017

Model to represent the behaviour of photovoltaic (PV) solar cells in reverse bias is reviewed, concluding with a proposal of new model. This model comes from the study of avalanche mechanisms in PV solar cells, it can be adapted to PV cells witch reverse characteristic is dominated by avalanche mechanisms, and also dominated by shunt resistance. A simulation of shading effects in arrays with parallel series configuration has been done; an analysis has been made of the power dissipation with the influence of the number of shaded cells and the effect of shadowing degree.
Texturization of Silicon Wafers for Solar Cells by Anisotropic Etching with Sodium Silicate Solutions
Authors: C.L. Su  , C.H. Hsu  , K.H. Lan  , R. Leron  , A. Soriano  , M.H. Li
Published: May 2017

The efficiency of silicon solar cells greatly depends on the texturization of silicon wafers used in their fabrication. Texturization reduces the reflectance of the silicon surface which improves the light trapping ability of the solar cells. In this study, aqueous Na2SiO3 solutions were used as etchants in the texturization of monocrystalline silicon wafers. The main objective was to evaluate the performance of the etchant based on the silicon surface reflectance. The surface morphology and etching rate were also investigated. Results showed that Na2SiO3 solutions reduced the surface reflectance of the wafers better than other alkaline etchants. This was brought about by the formation of uniformly distributed pyramidal structures on the surface of the wafer after texturization. The effects of process parameters such as Na2SiO3 concentration, solution temperature and etching time on the reflectance were evaluated and optimized by applying ANOVA and Response Surface Method (RSM). The optimum process condition was found to be 6.2 wt% Na2SiO3, 80°C and 5 min at which the reflectance of the silicon wafer was reduced to 9.27%. Furthermore, the addition of small amounts of IPA (up to 0.03 wt%) to the Na2SiO3 solution reduced the reflectance of the wafer (9.13%) and slightly improved its wettability
WIND TURBINES MAINTENANCE MANAGEMENT BASED ON FTA AND BDD
Authors: F.P. García Márquez  , J.M. Pinar Pérez  , R. Ruiz Hermosa  , M. Papaelias
Published: May 2017

The  condition  of  a  wind  turbine  will  depend on different  elements  that  compound  it.  The  relationships  cause-effects  of  the  different  faults  can  be  analysed  qualitatively  by Fault  Tree  Analysis  (FTA).  FTA  is  a  graphical  representation of logical relationships between events, where each event has a fault probability associated. In this paper is proposed the quantitatively study of the FTA via Binary Decision Diagram (BDD). BDD is a method  which  determines  the  output  value  of  the  function  by examining  the  inputs.  The  BDD  method  does  not  analyse  the FTA directly, but converts the tree to the Boolean equations that will   provide   the   fault   probability   of   the   top   event.   This conversion   presents   several   problems,   where   the   variable ordering  scheme  chosen  for  the  construction  of  the  BDD  has  a crucial  effect  on  its  resulting  size.  It  is  solved  in  this  paper employing  the  Level,  Top-down-Left-Right,  AND,  Depth  First Search  and  Breadth-First  Search  methods  for  ranking  the  events (or vertices), and a comparative analysis is done.
Hybrid solution for photovoltaic and photothermal conversion
Authors: K. Znajdek  , M. Sibiński
Published: May 2017

In this paper an idea and a realization of a hybrid solution for photovoltaic and photothermal conversion is presented. Proposed solar hybrid system integrates photovoltaic (PV) module and solar thermal collector in one device, which provides direct conversion of solar energy into electricity and heat simultaneously. Origins of the idea and proposal of the solution are presented. Performance and operation of both integrated system and stand alone devices have been measured and analyzed. Obtained results show the advantage of synergy for combined thermo electrical appliance. Future development and possible industrial applications are proposed.
Practical Aspects of Performance Tests on Power Quality Analyzers
Authors: J.R.Macedo Jr  , I. N. Gondim  , J. A. F. Barbosa Jr  , C. E. Tavares  , A. J. P. Rosentino Jr
Published: May 2017

This paper aims to provide analysis for qualification and quantification of causes related to results deviations in relation to a default value eventually recorded by power quality analyzers while the calibration tests are performed by the Power Quality Group of the Federal University of Uberlândia. Specifically, it is shown the method effects for calculating the RMS voltage while the time and short-duration voltage variations amplitude are quantified. Additionally, it is presented the differences between the various methods available to quantify the voltage unbalances, as well as the impacts due to different methods of calculating the RMS average recorded by the power quality analyzer.
A New Control Method for Operation of D-STATCOM under Unbalanced Conditions
Authors: H. Molavi  , M. M. Ardehali  , G. B. Gharehpetian  , M. J. Sanjari  , E. Ebrahimi
Published: May 2017

This paper presents a new control method for D-STATCOM operation under unbalanced condition. The aim of this method is to balance the load currents. The proposed method extracts the negative and positive sequence components for generating reference values of current that should be injected in order to compensat the load. The proposed method offers structural simplicity and less calculation complexity. Simulation results indicate that this method is effective and D-STATCOM has good performance under unbalanced conditions.
Assessment and modelling of the waste heat availability from gas turbine based CHP systems for ORC systems
Authors: E. Firdaus  , K.Saaed  , D.Bryant  , M.Jones  , S.Biggs  , B.Bahawodin
Published: May 2017

This paper presents the findings of modelling of waste heat availability from a Combined Heat and Power (CHP) system with a rated electrical output of 4.35 MW and steam production of 8,165 kg/hr at 16 barg. The model has been developed using HYSYS DynamicsTM. The amount of waste heat available from the CHP system is dependent on the ambient air, steam production, and gas turbine power output. A Pitot traverse measurement across the duct was undertaken to determine the actual amount of waste heat available from the CHP system. The measurements were conducted in accordance to BS EN 15259:2007 standards. The simulation results of waste heat availability have been compared to experimental data at various CHP power outputs. The HYSYS DynamicsTM model waste heat calculation was shown to be 5.3% lower than experimental waste heat measurements. An analysis of the waste heat availability by both modelling and experiment was done which shows that the CHP system waste heat available between 3.82 MW and 5.09 MW. Recovering this low grade heat from the CHP system using Clean CycleTM 125 ORC systems generates between 217 kW and 344 kW of electricity, respectively. Increases of 2.3% in electrical efficiency of the CHP system are predicted
Pre-feasibility Study of Landfill Biogas for Electricity in Colombia
Authors: Borzychowski Robert  , Csontos Kinga  , González María A  , Rojas-Solórzano Luis
Published: May 2017

A technical and financial pre-feasibility study of an energy from waste project in Colombia is presented. The current situation in Colombia, the technologies available, and the tools for the simulation are described. A case study based on transforming an existing landfill to allow the collection of the landfill gas to generate electricity for sale to the grid as well as to nearby industry is presented. Two special variations of the case study are also presented to demonstrate the effect of Feed-in-Tariff (FIT) and Clean Development Mechanisms (CDM) incentives. Results demonstrate the importance of a sound FIT policy and the potential advantage of gaining CDM credits in the financial viability of the project. The project additionally may contribute to the reduction of GHG emissions.
Solar and wind generation to power medical facilities in Haiti
Authors: William Hafner-Burton  , Peter Nelson  , Dr. Ahmed ElSawy
Published: May 2017

The main objective of this senior design project was to design, manufacture, and test a lightweight portable power generator utilizing wind and solar power. The intent of this system is to provide electricity to power the medical equipment in a small clinic in Haiti. Haiti is suffering from recent natural disasters and in urgent need of support from the United States and other countries. So far, about 100 million dollars in aid has been poured into Haiti as well as medical supplies/equipment and manpower including engineers, nurses, doctors, etc. With such a power generator system, Haitians will be able to economically supplement the power needed to run their clinic’s equipment. Haiti is a prime spot for solar and wind generation, using its over 3000 hours of sunlight and trade winds to produce optimal amounts of green energy. This richness of natural resources was the main motivation behind developing this economical system, building it to set up a strong basis for green renewable energy into their economy, monitoring its setup, and learning from the findings. Powering a small clinic is just a small step into making Haiti a self-sufficient country in the area of power generation. The details of this wind and sun renewable energy system are described and discussed in this undergraduate research paper.
Introduction
Authors: O’Donnell Siobhan
Published: May 2017

C’est avec plaisir que nous vous présentons
le second de nos deux numéros spéciaux
sur les troubles de l’humeur et
d’anxiété, fondés sur les résultats de
l’Enquête sur les personnes ayant une
maladie chronique au Canada − Composante
des troubles de l’humeur et d’anxiété
(EPMCC-THA). Le premier numéro, publié
en décembre 2016, contenait trois articles
brossant un portrait des adultes canadiens
ayant déclaré avoir reçu un diagnostic de
troubles de l’humeur ou d’anxiété, à savoir
leurs caractéristiques sociodémographiques,
leur état de santé, les limitations dans leurs
activités ainsi que leur degré d’invalidité
et enfin les facteurs associés à leur bien-être.
Les trois articles publiés ici portent
quant à eux sur des thèmes liés à la prise
en charge de ces troubles. Globalement,
ces articles explorent les facteurs sociodémographiques
clés dont on sait qu’ils ont un
impact sur les résultats de santé, et ils
traitent également des stratégies visant à
favoriser la guérison et le mieux-être des
adultes canadiens ayant déclaré avoir reçu
un diagnostic de troubles de l’humeur ou
d’anxiété.
Self-management of mood and/or anxiety disorders through physical activity/exercise
Authors: Pelletier Louise , Shanmugasegaram Shamila , Patten Scott B , Demers Alain
Published: May 2017

Introduction

Physical activity/exercise is regarded as an important self-management
strategy for individuals with mental illness. The purpose of this study was to describe
individuals with mood and/or anxiety disorders who were exercising or engaging in
physical activity to help manage their disorders versus those who were not, and the
facilitators for and barriers to engaging in physical activity/exercise.

Methods

For this study, we used data from the 2014 Survey on Living with Chronic
Diseases in Canada—Mood and Anxiety Disorders Component. Selected respondents
(n = 2678) were classified according to the frequency with which they exercised:
(1) did not exercise; (2) exercised 1 to 3 times a week; or (3) exercised 4 or more times
a week. We performed descriptive and multinomial multiple logistic regression analyses.
Estimates were weighted to represent the Canadian adult household population
living in the 10 provinces with diagnosed mood and/or anxiety disorders.

Results

While 51.0% of the Canadians affected were not exercising to help manage
their mood and/or anxiety disorders, 23.8% were exercising from 1 to 3 times a week,
and 25.3% were exercising 4 or more times a week. Increasing age and decreasing levels
of education and household income adequacy were associated with increasing prevalence
of physical inactivity. Individuals with a mood disorder (with or without anxiety)
and those with physical comorbidities were less likely to exercise regularly. The most
important factor associated with engaging in physical activity/exercise was to have
received advice to do so by a physician or other health professional. The most frequently
cited barriers for not exercising at least once a week were as follows: prevented
by physical condition (27.3%), time constraints/too busy (24.1%) and lack of will
power/self-discipline (15.8%).

Conclusion

Even though physical activity/exercise has been shown beneficial for
depression and anxiety symptoms, a large proportion of those with mood and/or anxiety
disorders did not exercise regularly, particularly those affected by mood disorders
and those with physical comorbidities. It is essential that health professionals recommend
physical activity/exercise to their patients, discuss barriers and support their
engagement.
Autogestion des troubles de l’humeur et/ou d’anxiété par l’activité physique et l’exercice
Authors: Pelletier Louise , Shanmugasegaram Shamila , Patten Scott B , Demers Alain
Published: May 2017

Introduction

L’activité physique et l’exercice constituent une stratégie d’autogestion
importante pour les personnes vivant avec une maladie mentale. Cette étude visait à
caractériser à la fois les personnes atteintes d’un trouble de l’humeur et/ou d’anxiété qui
faisaient de l’exercice ou de l’activité physique pour aider à gérer leur trouble et celles qui
n’en faisaient pas, ainsi qu’à identifier les facteurs facilitant l’activité physique et l’exercice
et ceux constituant un obstacle.

Méthodologie

L’Enquête sur les personnes ayant une maladie chronique au Canada –
Composante des troubles de l’humeur et/ou d’anxiété de 2014 a été utilisée pour cette
étude. Les répondants (n = 2 678) ont été classés en fonction de la fréquence à laquelle
ils faisaient de l’exercice : (1) aucun exercice, (2) exercice une à trois fois par semaine et
(3) exercice quatre fois ou plus par semaine. Nous avons pondéré toutes les estimations
afin que les données soient représentatives de la population canadienne adulte vivant en
logement privé dans l'une des 10 provinces et ayant déclaré avoir reçu un diagnostic de
troubles de l’humeur et/ou d’anxiété.

Résultats

Sur l’ensemble des Canadiens affectés, 51,0 % ne faisaient aucun exercice
pour aider à gérer leur trouble de l’humeur et/ou d’anxiété, 23,8 % en faisaient d’une à
trois fois par semaine et 25,3 % en faisaient quatre fois ou plus par semaine. On a établi
un lien entre, d’une part, un âge plus avancé, des niveaux de scolarité plus bas et une
suffisance de revenu du ménage plus faible et, d’autre part, une fréquence plus importante
de l’inactivité. Les individus vivant avec un trouble de l’humeur (avec ou sans
anxiété) et ceux avec des comorbidités physiques étaient moins susceptibles de faire régulièrement
de l’exercice. Les recommandations d’un médecin ou d’un autre professionnel
de la santé constituaient le facteur le plus important associé à la décision de faire de de
l’exercice. Les obstacles mentionnés le plus souvent à de l’exercice au moins une fois par
semaine étaient un problème physique (27,3 %), un manque de temps ou un horaire trop
chargé (24,1 %) et un manque de volonté ou d’autodiscipline (15,8 %).

Conclusion

Malgré les bénéfices de l’activité physique et de l’exercice pour contrer les
symptômes de dépression et d’anxiété, un pourcentage important de personnes atteintes
d’un trouble de l’humeur et/ou d’anxiété ne fait aucun exercice sur une base régulière,
particulièrement celles atteintes de trouble de l’humeur et celles présentant des comorbidités
physiques. Il est essentiel que les professionnels de la santé recommandent à leurs
patients de faire une activité physique ou de l’exercice, discutent avec eux des obstacles
rencontrés et les encouragent à persévérer.
Use of medication and psychological counselling among Canadians with mood and/or anxiety disorders
Authors: O’Donnell Siobhan , Syoufi Maria , Jones Wayne , Bennett Kathryn
Published: May 2017

Introduction

This study describes the use of prescription medications and psychological
counselling in the past 12 months among Canadian adults with a self-reported mood
and/or anxiety disorder diagnosis; the sociodemographic and clinical characteristics
associated with their use; and reasons for not using them.

Methods

We used data from the 2014 Survey on Living with Chronic Diseases in
Canada—Mood and Anxiety Disorders Component. The study sample (n = 2916) was
divided into four treatment subgroups: (1) taking medication only; (2) having received
counselling only; (3) both; or (4) neither. We combined the first three subgroups and
carried out descriptive and multivariate logistic regression analyses comparing those
who are taking medication and/or have received counselling in the past 12 months,
versus those doing neither. Estimates were weighted to represent the Canadian adult
household population living in the 10 provinces with diagnosed mood and/or anxiety
disorders.

Results

The majority (81.8%) of Canadians with a mood and/or an anxiety disorder
diagnosis reported they are taking medications and/or have received counselling (47.6%
taking medications only; 6.9% received counselling only; and 27.3% taking/having
received both). Upon controlling for individual characteristics, taking medications
and/or having received counselling was significantly associated with older age; higher
household income; living in the Atlantic region or Quebec versus Ontario; and having
concurrent disorders or mood disorders only. Symptoms controlled without medication
was the most common reason for not taking medications, while preferring to manage
on their own and taking medications were among the common reasons for not having
received counselling.

Conclusion

The majority of Canadian adults with a mood and/or an anxiety disorder
diagnosis are taking medications, while few have received counselling. Insights gained
regarding the factors associated with these treatments, and reasons for not using them,
emphasize the importance of discussing treatment options and perceived barriers with
patients to ensure they receive the best treatment according to their needs and
preference.
ANALISIS SEKTOR STRATEGIS PULAU SULAWESI, JAWA TIMUR DAN KALIMANTAN TIMUR
Authors: Arman Arman
Published: May 2017

Studi ini menganalisis sektor strategis, sektor responsif, sektor sensitif dan sektor terbelakang di daerah Sulawesi lainnya (Sulawesi Utara, Sulawesi Tengah, Sulawesi Tenggara dan Gorontalo), Sulawesi Selatan (termasuk Sulawesi Barat), Jawa Timur dan Kalimantan Timur. Pemilihan lokasi didasarkan pada intensitas interaksi perdagangan antar daerah dan ada karakteristik ekonomi dari masing-masing daerah. Sektor strategis merupakan sektor yang mampu mendorong kinerja ekonomi dari sisi demand dan supply, sementara sektor responsif merupakan sektor yang mampu mendorong kinerja ekonomi hanya dari sisi demand. Sektor sensitif merupakan sektor yang mampu mendorong kinerja ekonomi dari sisi supply dan sektor belum berkembang didefinisikan sebagai sektor yang belum memberikan kontribusi secara optimal baik dari sisi demand dan supply. Metode penelitian adalah adalah inter-regional input-output. Basis Data adalah Tahun 2005, kemudian menggunakan teknik RAS untuk meng-upgrade data menjadi 2011. Hasil analisis menunjukkan bahwa sektor strategis masing-masing wilayah adalah sektor industri makanan dan minuman, kecuali di wilayah Kalimantan Timur, Sektor strategis adalah industri petrokimia. Sektor strategis merupakan sektor kunci karena mampu mengurangi kesenjangan ekonomi antar wilayah, menghasilkan siklus ekonomi, memiliki konektivitas antara sektor dan memiliki keterkaitan dengan beragam sektor. Oleh karena itu, kinerja sektor strategis harus ditingkatkan dalam rangka meningkatkan output dan kinerja ekonomi.
Reconstrucción morfológica y fonológica de los pronombres personales independientes del protoatzinca
Authors: Pascacio Montijo Etna T.
Published: May 2017

En este artículo presento la reconstrucción morfológica y fonológica de los pronombres personales independientes del protoatzinca, con base en datos del matlatzinca y ocuilteco actuales, y de documentos coloniales. En todas las lenguas atzincas encontramos once pronombres independientes que distinguen primera, segunda y tercera persona, singular, dual y plural para cada persona y exclusividad en los pronombres de primera persona dual y plural. Cada una de estas categorías se expresa con un morfema distinto en las palabras pronominales. Uno de los principales resultados de la comparación y reconstrucción que aquí presento es que no hay cambios morfológicos diacrónicos, pero sí los hay en los niveles fonológico y fonético. Original recibido: 2014/05/05Dictamen enviado al autor: 2014/09/24Aceptado: 2014/10/20
Sin corpus no hay historia: la Red CHARTA como un proyecto de edición común
Authors: Diez Del Corral Areta Elena , Aizpuru Leyre Martín
Published: May 2017

El objetivo de este trabajo es presentar la Red CHARTA (Corpus Hispánico y Americano En La Red: Textos Antiguos) a la comunidad científica que no conozca todavía sus propósitos investigadores y sus ventajas en lo que respecta a a edición y al posterior análisis filológico de documentos antiguos en español. En él se expone lo que es la Red CHARTA, señalando sus objetivos, los grupos de investigación que la integran y su trayectoria desde sus orígenes hasta la actualidad. Así mismo, se detalla la metodología que se emplea con la explicación de la triple presentación, los criterios de edición que se han establecido y las dificultades que se han presentado al formularlos. Se ofrece también un ejemplo concreto de un documento editado y se comenta el estado actual del proyecto y las tareas que quedan todavía por acometer.  Original recibido: 2014/02/18Dictamen enviado al autor: 2014/07/23Aceptado: 2014/08/19
Un poco es igual a 'mucho'. Sobre las formas un pocotón, un poconón y un pocotonón, un pocononón
Authors: Pato Enrique
Published: May 2017

En este breve artículo se describe, a través de ejemplos obtenidos de diversas fuentes, cuatro formas gramaticales propias del español de varios países hispanoamericanos: pocotón, poconón, pocotonón y pocononón. Estas locuciones adverbiales pseudopartitivas sirven para expresar cuantificación y énfasis, y su valor semántico es similar al de 'mucho/ muchísimo', 'un montón' del español general. Original recibido: 2015/04/06Dictamen enviado al autor:2015/06/15Aceptado:2015/08/03
Aceptación y resistencia: un análisis de ah y ay como indicadores de cambio de estado
Authors: Vázquez Carranza Ariel
Published: May 2017

La presente investigación utiliza la metodología del Análisis Conversacional para estudiar las partículas lingüísticas ah y ay en conversaciones de la vida cotidiana.Las partículas fueron tomadas de un corpus de interacciones en español mexicano de la ciudad de Toluca. Ah y ay son caracterizados como indicadores de cambio de estado, en general ah y ay muestran aceptación o resistencia al pasaje de habla precedente. Se examina a ah en secuencias posteriores a informes, y en este contexto se sugiere que ah inicia el preámbulo de la acción siguiente en la conversación. También se ilustra cómo los hablantes tratan de manera diferente los turnos informativos dependiendo del conocimiento que han mostrado anteriormente en la interacción. Ay también se analiza en contextos informativos donde se registra sorpresa. Se argumenta que el grado de sorpresa indicado por ay es mayor al indicado por ah. Ay es también utilizado para iniciar reparación a un turno anterior. Ay puede marcar habla obvia, es decir, indica que la idea presentada en el turno anterior debió haberse dado por sentada. Original recibido: 2015/05/06Dictamen enviado al autor: 2015/07/28Aceptado: 2016/05/06
Propuesta pedagógica: matemáticas en contexto
Authors: Borja Montaña Diego Fernando
Published: May 2017

Hablar de las matemáticas en el SENA suscita diversas opiniones, las cuales se desplazan de afirmaciones como “las matemáticas no sirven para nada” hasta aquellas que manifiestan que “son muy importantes”; estas opiniones se retoman del trabajo realizado por el Equipo de Matemáticas de la Escuela Nacional de Instructores2, a partir de la experiencia alcanzada durante el pilotaje de un proyecto para fortalecer las competencias matemáticas en aprendices del Centro de Electrónica, Electricidad y Telecomunicaciones, de la Regional Distrito Capital, el Equipo de Matemáticas de la Escuela retoma elementos de esta propuesta con el objetivo de ajustarla a los contextos y necesidades de otros centros de formación en una propuesta pedagógica denominada Matemáticas en Contexto, MEC. Esta experiencia permitió la consolidación de diferentes grupos de investigación en el campo de la didáctica de las matemáticas en el contexto de la formación para el trabajo.
Desafíos del Sistema Nacional de Educación Terciaria
Authors: Mejía Francisco Javier
Published: May 2017

[Sin Resumen]
Educational Scholarship: The Need of Today
Authors: Rimal Hem Sagar
Published: May 2017

Not available.Birat Journal of Health Sciences Vol.2/No.1/Issue 2/ Jan - April 2017, Page: 91-92
Nutritional Status of Dalit Children: A Comparative Study with Non-Dalit Children in Eastern Terai of Nepal
Authors: Kafle Tara Kumari , Singh GP , Singh SP , Kafle TK
Published: May 2017

IntroductionThe poor nutritional status of under five children has been considered a serious problem in Nepal for many years. Children need adequate nutrition for their proper physical, emotional as well as psychological development.ObjectiveThe objective of this study was to assess and compare the nutritional status of under five children and explore its socio demographic determinants.MethodologyAn analytical cross-sectional study was conducted in Eastern Terai, ecological belt of Nepal. Predesigned, pretested interview schedule was used to collect the information. Information was collected from 720 Dalit as well as Non-dalit mothers about their youngest children. The nutritional status was measured byusing anthropometric measurements.  ResultsIn bi-variate analysis the significant difference were observed among children's nutritional status between castes as well as a number of socio-demographic variables however in multivariate analysis only caste, number of Children Ever Born (CEB) and mother's education were found significant determinants of height for age, mother's education was found significant determinant for weight for height and caste, age of children and mother's education were found significant determinants of weight for age of children.ConclusionDalit children were found much more malnourished than Nondalit. The castes, age of child, CEB to mother and mothers' education were found as the determinants of nutritional status among under-five children.Birat Journal of Health Sciences Vol.2/No.1/Issue 2/ Jan - April 2017, Page: 117-126
Prevalence of Urinary Tract Infection and Antibiotic Susceptibility Pattern to Urinary Pathogens in Kathmandu Medical College and Teaching Hospital , Duwakot
Authors: Pradhan Binita , Pradhan SB
Published: May 2017

IntroductionIn developing countries, urinary tract infections (UTIs) are one of the most commonly diagnosed diseases among the patient seeking medical service and being treated with empirical antibiotics which causes resistance.ObjectiveTo find out the prevalence of urinary tract infection and sensitivity pattern of antibiotics among bacterial pathogens isolated in patients attending Kathmandu Medical College Teaching Hospital, Duwakot.MethodologyAll the patients with the clinical suspicion of UTI were sent for urine culture. Prevalence of UTI and urinary pathogens isolated with antimicrobial profile was correlated.ResultA total number of 1735 clinically suspected as UTI cases were sent for urine culture sensitivity. Total culture positive were 239 (13.8%). The majority of isolates were from female patients comprising 180 (75%). The most common pathogenic microorganism isolated was E.coli (79.1%). Second most common organism was Klebsiella (11.7%) followed by Citrobacter (3.34%) and Proteus (2.92%). The isolated microorganism showed maximum number of sensitivity with the antibiotics Ofloxacin and Ciprofloxacin. The isolated microorganism demonstrated resistance with Nalidixic Acid and Co-Trimoxazole. ConclusionUrinary tract infection is a commonly encountered case in general practice. Females are commonly affected than men. The microbiological profile and the antibiotic sensitivity pattern while initiating empirical treatment must be taken into account while planning for the management. Regular supervision of the sensitivity pattern of pathogenic microorganism is mandatory for effective treatment.Birat Journal of Health Sciences Vol.2/No.1/Issue 2/ Jan - April 2017, Page: 134-137
Fabrikplanung mit Virtual Reality
Authors: Bracht Uwe , Fahlbusch Martin W.
Published: May 2017

Kurzfassung

Der Einsatz von modernen Werkzeugen wie Simulation und Virtual Reality bei der Planung von Fabrik- und Logistiksystemen eröffnet dem Anwender eine Reihe von Nutzenpotenzialen. Die realitätsnahe Visualisierung von Fabriken und Anlagen erhöht zudem die Planungssicherheit. Die Anzahl aufwändiger und teurer Prototypen sowie Modelle wird reduziert, ohne dass auf anschauliche Darstellungen verzichtet werden muss. Durch die Verknüpfung moderner Simulationssysteme mit Virtual Reality können komplexe Abläufe in den exakten räumlichen Kontext gebracht und auf Schwachstellen und Verbesserungsmöglichkeiten hin untersucht werden.
Kompetenznetzwerke in der Anlageninstandhaltung
Authors: Bullinger Hans-Jörg , Schuster Erwin , Gudszend Tim
Published: May 2017

Kurzfassung

Im Hinblick auf die Verfügbarkeit technischer Anlagen müssen besonders kleine und mittelständische Unternehmen der Investitionsgüterindustrie verstärkt miteinander kooperieren. Fraunhofer IAO beschreibt hierzu in einer Marktstudie die Möglichkeit von Kompetenznetzwerken zwischen der Instandhaltung und den Servicepartnern. Um diese durch innovative Informations- und Kommunikations-Lösungen zu unterstützen, werden nachfolgend eine Auswahlstrategie, die wichtigsten Kriterien und beispielhafte Ergebnisse dieser Marktstudie beschrieben.
Unternehmensnetzwerke im deutschen Maschinenbau
Authors: Widmaier Ulrich , Schumann Diana
Published: May 2017

Kurzfassung

Auf der Basis der empirischen Ergebnisse des NIFA-Panels (Neue Informationstechnologien und Flexible Arbeitssysteme) geht der vorliegende Beitrag der Frage nach, inwieweit die Kunden-Lieferanten-Beziehungen im deutschen Maschinenbau vernetzt sind, welche Stabilität diese Unternehmensnetzwerke aufweisen und mit welchen Vor- und Nachteilen enge Kunden-Lieferanten-Beziehungen verbunden sind. Dabei wird einerseits aufgezeigt, dass die Einbindung in Netzwerke für Unternehmen des deutschen Maschinenbaus mit einer Einschränkung ihrer betrieblichen Autonomie einhergehen kann. Andererseits können sie jedoch für die Innovationsfähigkeit von Maschinenbaubetrieben vorteilhaft sein.
Oberflächenfestigung durch Kugelstrahlen
Authors: Markovina Roko
Published: May 2017

Kurzfassung

Die wichtigste Funktion der Fahrzeuge neuer Generation (einschließlich der Flugzeuge, Hochgeschwindigkeitsshiffe, Boote und Autos) ist einen sicheren, bequemen und schnellen Transport sicherzustellen, wobei dies die Forderungen des zukünftigen Transportes sind. Dieser Beitrag stellt die Anwendung des Verfahrens des Kugelstrahlens bei Bauelementen in der modernen Technologie der Herstellung der Fahrzeuge und den Einfluss dieses Verfahrens auf Dauerfestigkeit und Gestaltung der Beplankung dar. Das Kugelstrahlen wird in Zukunft eine besondere Rolle spielen.
Supply Chain Management mit SAP
Authors: Nissen Volker , Lameter Falko
Published: May 2017

Kurzfassung

Der Ausdruck Supply Chain Management (SCM) bezeichnet die betriebsübergreifende, meist systemunterstützte Planung, Abwicklung und Überwachung der Logistik. Insbesondere in produzierenden Unternehmen steht dieses Thema auf der Tagesordnung an oberster Stelle. Globaler Wettbewerb, immer kürzere Produktlebenszyklen und steigende Ansprüche der Kunden erfordern eine Optimierung der logistischen Prozesse. Ungenutzte Potenziale liegen vor allem in der Beschleunigung des Materialflusses, dem Abbau von Bestandsüberhängen, der Verbesserung der Transparenz logistischer Abläufe sowie in der Erhöhung der Lieferbereitschaft. Eine Schlüsselfunktion kommt dabei der Absatzplanung zu.