bluuebunny/crossref_metadata_2025 huggingface dataset:
How can real-world evidence be used in practice to demonstrate drug value and improve patient care?
Authors: Dormer Laura
Published: May 2017

Evidence Europe 2017, Victoria Park Plaza, London, UK, 22–23 February 2017

The Evidence Europe 2017 meeting took place in February 2017 in London (UK). This year’s event focused on the use of real-world evidence in practice, both before and after a product has been approved. Speakers and attendees represented a broad spread of stakeholders, including national bodies, industry and academia. The event involved expert presentations, lively panel discussions and networking opportunities, allowing everyone involved to improve their knowledge of how real-world evidence is being used and potential opportunities for the future.
Public Ax-cess to the Newspaper
Authors: Beattie Earle
Published: May 2017

Letters to the Editor are like little pigs going to market -- innocently, because they don't know they're about to be butchered. The so-called "Town Meeting in Print" is sunposed to represent public access to the media, the voice of the people, feedback from the readers and all that sort of rhetoric when in fact it's more often a slaughter-house of public prose. Only a few letters are left intact.
The Ontario Press Council
Authors: Lunn Richard
Published: May 2017

The Ontario Press Council is half way through i t s second year and its first annual report is just around the corner. Whoever is putting that report together must be asking himself, "Is the press council a watchdog or a paper tiger?" It's a hard question to answer: it depends on what you perceive t h e press council t o be.
Must We Be Ambushed by the Future?
Authors: Zwicker Barrie
Published: May 2017

Three major shortcomings afflict media coverace of the future, in my view. There is too little; it is fragmentary, and the fragments are mainly doomsday warnings and romanticized snippets about possible future technology (chiefly in medicine and transportation). The large realities are almost entirely missing.
Withdraw the Special Privileges of Time and Reader's Digest or Canadianize These Trojan Nags
Authors: Zwicker Barrie
Published: May 2017

There is reason to believe the Time-Reader's Digest lobby in Canada is hard at work right now, using all the considerable resources and influence at its command to protect the special privileges enjoyed by the twin lobby leaders.
Notices
Authors: Beattie Earle
Published: May 2017

ACADEMIC: Arts 100 Communication.

Arts 100: Communications is a University of Waterloo credit course offered in cooperation with The Ontario Educational Communications Authority. It explores the idea that conventiona lliteracy may be replaced by a new literacy which involves a range of media.
'People-Event' Bias, Inertia, Delayed Pollution Story
Authors: Fairhurst Ted
Published: May 2017

This past Summer, a young mother on welfare who lived near the Canada Metal Company was ordered by the City Health Department to keep her house as free as possible of dust to protect her children from lead poisoning. The woman considered the order ridiculous and said she would have to dust almost every half hour to keep ahead of the dust blowing in her windows.
Know a Mis-reported Event And You'll Distrust All News
Authors: Cobden Michael
Published: May 2017

I had a doctor friend once, a man with a mind as precise as any of the instruments he used to do bone grafts and the like. He used to shake his head at the world as he kept discovering what he called "carelessnesses."
Media As Bland Milk Chocolate 'ChockFull' of Nuts
Authors: Rogers Bruce
Published: May 2017

Seldom reliable sources have charged that the Canadian Media are full of left-leaning do-gooders, bleeding heart liberals and sensationalist scandal mongers. Not true. In fact our media efforts are more like the bland, milk chocolate which surrounds the roasted filberts in a candy bar. It is our lot to convince the unwary consumer that a handful of nuts is worth twenty cents. I sometimes wonder if our well-intentioned efforts are worth a damn.
Media '75 Conference
Authors: Beattie Earle
Published: May 2017

THEME: "Media In The Public Interest" Preliminary Agenda
TV Advertising: Fetish of the Capital-Commodity Relationship
Authors: Lower Pauline
Published: May 2017

In contemporary western society, free enterprise is not freedom, first of all, because the generative source of its wealth is founded upon a commodity/capital oriented relationship. The further these liberal societies develop "...the more does getting rich depend on having capital, rather than on work ...".1 In theory, in a liberal democratic system, anyone can found a newspaper or a television station, but in practice the cost would be prohibitive to any persons other than a consortium of the economic elite - the owners of capital, In Marxian terms, the essence of capital lies in its:
Media Probings
Authors: Beattie Earle
Published: May 2017

In his classic essay "On Liberty" John Stuart Mill wrote that a person is "deserving of confidence" only if "it has been his practice to listen to all that could be said apinst him..."
Media Probings
Authors: Beattie Earle
Published: May 2017

The author of the article that starts on the opposite page, J, Michael Jordan, was a graduate student in Political Science last year at Waterloo University, His thesis began by noting how "The relationship between the idological orientation of newspapers and the nature of their news reporting has been an area of considerable research interest" since Max Weber in l9lO urged scholars to start measuring content in a quantitative and qualitative way and to hold the results up against other perceptions of reality. In early studies of elections, bias was crudely measured by the comparison of each party's share of the total space of the newspaper. But in the 1952 U.S, presidential election (Eisenhower/Stevenson), two scholars, Klein and Maccoby, rated newspaper coverage on 18 points, including size and tone of headlines, placement of stories, number of biased remarks, number of pictures and total column inches. The long-vaunted "objectivity" of the press was shattered when they revealed systematic bias in favour of the endorsed candidates in 8 papers.
The Mind Managers - A Review
Authors: Cantrell Lucie
Published: May 2017

Schiller sets the tone for his book in his opening paragraph:
Monopolies and Oligopolies of the Media
Authors: Beatty Bryan
Published: May 2017

"Trying to determine what is going on in the world by reading the newspaper is like trying to tell the time by watching the second hand of a clock,"
'Good Buddy' Radio - The Anonymous Mass
Authors: Watkins G E
Published: May 2017

"Ten-four good buddy - that's a copy," these are words that are filling the air waves all across North America. The CB radio and its peculiar language has spread like wild fire across this country. Retail sales of these units (mostly mobile) have gone out of control. To the CBers there is not enough minutes in a day to get a clear channel on the twenty-three that are now available.
Media Probings
Authors: Beattie Earle
Published: May 2017

On the last day of April, this year, we met the man who made a singular contribution to Canadian journalism twenty-nine years ago in Winnipeg. Short-lived as that achievement was it has served as a model that may be re-created in the not-too-distant future. The man was Harry Ferns, who with Harry and Jean Crowe and others, founded the Winnipeg Citizen, a full-sized daily paper that lasted from March 1, 1948, until April 13, 1949, Its singularity is that it was Canada's first co-operatively owned daily paper. (Ferns was then teaching at United College, Winnipeg and is now a professor at the University of Birmingham).
John Turner and The Star - The Not So Apparent Heir
Authors: Dargan Monty
Published: May 2017

The daily newspaper does a great deal more than merely report the news. Items judged to be of special importance are, of course, given front page coverage with appropriate headlines t o catch the reader's attention. Elsewhere in the paper events of a regular and recurring nature me reported on with appropriate 'colour' writing - sports, entertainment, real estate, social activities etc. Commercial content, advertising is of course extremely heavy in the modern metropolitan daily and competes vigorously for space with 'reportage and regular features. This has led many critics to point their fingers disapprovingly at what is known as the fragmentation of the news.(1)
Media Probings
Authors: Beattie Earle
Published: May 2017

On every side we hear criticism of the mass media and suggestions for control or change. Riffling throu our files of recent date we have these items at random
The Reader's Digest: Violence Encrusted in Mom's Apple Pie
Authors: Beattie Earle
Published: May 2017

Generally, we think of Reader's Digest as a magazine of sweetness and light mom's apple pie unforgettable (and unbelievable) people with hearts of gold the American Way as model for the world, medical miracles and human feats of perseverance courage and faith. God is also very big in the pages of the Digest. A Montreal freelance writer who sold frequently to the Digest tells how a story entitled "I Was a Spy for the FBI" did not sell until it was changed to "I Was a Spy for the FBI and Found God." It illustrates how the cueing or triggering of interest is carried out. In this case the cue is God. Get God in there and it will sell to the Digest audience.
Chronology of Events in Canadian Communication and Media Study
Authors: Beattie Earle
Published: May 2017

It is instructive to review developments in this field over the past years.
TV Ontario - Founded for Learning
Authors: Lazarus Morden
Published: May 2017

Under the BNA Act education is a provincial and communications a federal responsibility.
The Official Secrets Acts and the Mass Media
Authors: Siegel Arthur
Published: May 2017

The Official Secrets Act is worrisome in that its verv vagueness makes it a net which, by and large, can cover all illegal disclosures of secrets. There has been a tendency in Canada to see the Official Secrets Act as a sort of an ultimate weapon - with penalties of up to 14 years in prison. It applies to everybody: cabinet ministers, parliamentarians, Public Service officials, members of the armed forces, the press and the public at large where there has been a serious breach of highly classified information. There has been at least one instance when it has been applied in relation to a Member of the House of Commons.(1)
Fundamental Mythology of Television
Authors: Conway-Marmo Kathryn
Published: May 2017

One of the more significant memories adults have of their childhoods is of the stories once read to them. The cherished memory of a favourite story ensures a kind of immortality for it - one their children are likely to inherit. The basic component in the study of mythology is that the stories inherent in every culture have survived timelessly.
TV-Ontario: Education with a Difference (Part II)
Authors: Lazarus Morden
Published: May 2017

The Ontario Educational Communications Authority was established in 1970 by an act of the Ontario legislature. Its mandate from the Ontario government was to serve the whole province with educational television. Accordingly, OECA's Board of Directors committed itself to the extension of the basic service to all Ontarians in order to provide educational opportunities more equitably across the province.
Journalists and Public Opinion Polls
Authors: Johansen Peter
Published: May 2017

Recently, the Ontario Legislature took a first step toward banning the publication of opinion poll results during provincial election campaigns. The legislative assembly gave all - party approval to a resolution proposed by Conservative MLA George Ashe, which stated:
Calvinism and the Mass Media
Authors: Murphy Trudy
Published: May 2017

Since I have chosen to write on Calvinist beliefs pertaining to the means of comnunication that reach and influence large numbers of people (especially literature, music, art, and television), I should state my familiarity with the subject of Calvinism. I was raised in a family and environment where the Calvinistic way of life was adhered to very strictly.
"Fifth Network Cinqieme Reseau" Conference on Broadcasting, Cable, Satellites and Computers for Community Action and Social Change Via Alternative and Independent Video
Authors: Beattie Earle
Published: May 2017

The "Fifth Network Cinquieme Reseau" conference, otherwise known as the Video Conference of Independent Producers held in Toronto in September this year (see Salter's article in this issue) was at once interesting, nostalgic and anachronistic as a harbinger of a new world that has not arrived. It included people who were serious students of experimental , alternative and community media -- government and ex-government, professional, amateur and dilettante, and people who are usually styled video freaks. The latter was evident when part of the audience began batting colored balloons back and forth, no doubt for camera effects, while speakers were talking.
Selections from Newsletter of the Canadian Communications Research Information Centre
Authors: Prakash Ash K.
Published: May 2017

Policy and Public Issues

Cable Television: Emerging Potential of Increased Channel Capacity

The Issue

The growth in the number of channels available to cable television subscribers brings with it a threat and a promise. Converters, in unlocking mid-and-super band channels, make possible a wider choice of programming to serve the specialized interests of viewers The more channels available, the more varied and innovative the programming can be. But a problem of definition exists.
Meeting Held on Formation of a Canadian Association of Communication Study - Matrix Suggested by the Editor
Authors: Beattie Earle
Published: May 2017

A meeting of the Steering Committee to consider the possible founding of a Canadian Association for communication studies was held in Ottawa on November 3, 1978, with Dona1 d Theall, McGill University, in the chair.
Alienation or Communication?
Authors: Baker Alan
Published: May 2017

Predictions about the societal impact of the "wired city" or "information society" of the not-so-distant future often refer in passing to the problem of alienation while focusing, with varying amounts of optimism, on issues such as access, control, regulation, privacy and what Gordon B.
The Politics of Canadian Space Programs
Authors: Singh Indu B , McDaniel Drew O
Published: May 2017

In 1966, the federal government established a Crown corporation called the Science Council of Canada. The purpose of this Council was to provide independent assessment of Canada's scientific and technological resources, requirements and potentials, and to make recommendations thereon by publishing reports. The Science Council was concerned with both research and development, and with the application of science and technology to Canada's social and economic problems.1
Secular Sound of Satellite Messages
Authors: Martin Christopher
Published: May 2017

Let me start with a pair of caricatures--the radical and the fundamentalist concepts of Christian communication.
Selections from Newsletter of the Canadian Communications Research Information Centre
Authors: Prakash Ash K
Published: May 2017

Communication News Briefs

The Minister of Communications Madame Jeanne Sauve appointed a nine-member committee to make recommendations on the future of the Canadian telecommunications system. The committee known as the Consultative Committee on the implications of Telecommunications for Canadian Sovereignty would present its recommendation in early 1979 and cover such considerations as the use of communications satellites foreign program imports status of cable companies framework and timing for the introduction of pay-television, etc.
Canadian Communication Association Founded: Reflections on the Saskatoon Meeting
Authors: Tate Eugene
Published: May 2017

The Canadian Comnunication Association was founded in Saskatoon on June 1, 1979 at the Learned Societies Conference. Twenty persons attended the founding meeting at St. Thomas More College, University of Saskatchewan.
Analogue Man - Engagement Without Commitment
Authors: Ferguson Stewart , Ferguson Sherry D
Published: May 2017

Historically, innovations in communication techniques have involved a manipulation of time and space. To draw an analogy from relativity theory, assuming a number of alternative time tracks are laid out like parallel railroad tracks, technological innovations in communication have made it possible to move from one track to another. Although the nature of ideas, the substance of communication does not change, the means by which, and the speed with which these ideas can be conveyed, stored, retrieved, and disseminated, and the number of people to whom the ideas are accessible has changed dramatically.
Fibre Optics: Light-Wave of the Future
Authors: Baker Alan
Published: May 2017

The introduction of fibre optics may bring more heat than light into the turbulent telecommunications scene where technology, growing like Topsy, threatens to outpace the efforts of all involved, from legislators, to regulators to owners.
The Canadian Search for Identity, 1846-1914: Communication in an Imperial Context
Authors: Fortner Robert S
Published: May 2017

In the seventy years which preceded the First World War Canadians struggled t o create a common identity acceptable across their ethnic, religious and regional diversities. The conflicts which developed in this struggle centered around alternative visions of Canada's destiny which were typified by the emphases on empire, statehood, regional differences or American assimilation and which were translated into a number of specific concerns. One of these concerns related to the communications technologies which were introduced into Canada between 1846 and 1914. These technologies were interpreted by Canadians as having specific implications for the furtherance of their political aspirations. This essay will discuss the imperial context for these aspirations.
Christ and the Media
Authors: Baker Alan
Published: May 2017

... as a television performer, I see myself as a man playing a piano in a brothel, who includes 'Abide With Me' in his repertoire in the hope of there by edifying both clients and inmates (p. 12)
The Treatment of State-owned vs. Private Corporations in English Canadian Dailies
Authors: Winter James P , Frizzell Alan
Published: May 2017

The conventional view of the mass communications media is that they are unaligned protectors of the public interest: anti-establishment muckrakers who help to maintain an open society. By offering diverse and often antagonistic interpretations of events, the media supposedly create a free marketplace of ideas. (Ref. 1) But in recent years social analysts have increasingly challenged this belief--arguing that the mass media, in fact, protect privilege and constrain thought and debate. These critics argue that the media are owned by a corporate elite which employs them not only to make profits, but also in order to maintain the ideology of the system on which its privileges rest. (Ref. 2)
The Spectrum of Communication: Can It Survive the Politics of Association?
Authors: Homer Joan S
Published: May 2017

The formation of a Canadian Communication Association on June 1, 1979, at the Learned Societies meetings in Saskatoon last spring should be welcome news to this country's communication researchers and theorists. Several have long been dissatisfied with the limitations of their marginal relationship with other learned groups in Canadian, American, and international social science. The development of Communication from the oldest art to one of the newest 'disciplines' has been assisted by notable contributions from Canadian scholars who would likely agree that such an association is long overdue.
The Effects of United States Television Programs upon Canadian Beliefs about Legal Procedure
Authors: Tate Eugene D , Trach Larry F
Published: May 2017

For some time, concern has been expressed by persons interested in legal communication about the effects of incidental learning from television programs upon the attitudes and beliefs people hold about the courtroom process. Television programs such as Perry Mason or Hawkins, which revolved around the activities of lawyers, presented a simplistic, often false, view of the legal process. Many persons feared that viewers learned false and harmful information about the legal process by watching these programs.
The Powers that Be
Authors: Zingrone Frank
Published: May 2017

It is a basic law of communication theory that information is a measure of what you do say set against what you could have said. It takes special abilities in pattern recognition to make such a measurement. The general public is almost never informed through such patterning: news events are presented as discrete units, for the most part unrelated to any on-going processes. We are to take what we get in the carefully selected forms of presentation agreed upon by the manager of public consciousness. The structure of the news is the architecture of ideology, often the seamily motivated personal ideologies of money and power held by the owners of the most massively extended organs of public information.
Understanding McLuhan's Media
Authors: Black Edwin
Published: May 2017

Perhaps the most controversial of the academic approaches to the mass media is that of Marshall McLuhan, a professor of English at the University of Toronto who brought tribal concepts to the study of technological cultures. Reading him as a prophet of perception rather than as a behavioural scientist is more rewarding for students of the mass media.
Visible and Invisible Bias via Media
Authors: Nevitt Barrington
Published: May 2017

Explores the relative powers of communication media and their programs to influence human thought and action in differing cultural contexts. Compares the telecommunication theory of transporting information through channels logically with human communication processes that transform their users eco-logically. Considers how metaphors and languages determine what is thinkable and unthinkable. Suggests perceptual rather than conceptual approaches for discovering the material, mental, and social effects of any medium whatever.
Confused Terminology in the Field of Communication, Information and Mass Media: Brillig But Mimsy
Authors: Beattie Earle
Published: May 2017

The term "communication" has been misused by scholars, practitioners and laymen so long that definition is badly needed if solid study foundations are to be laid and meaning achieved for public participation. The word "Media" too is often used as a singular noun by laymen. "Mass Communication" is a contradiction in terms .and "the mass media of communication" an abomination. Pluralizing communication(s) to mean the hardware of "telecommunications" is found untenable as is the word "telecommunications" itself except for telephone.

The word "communication" derives from the Latin communico which includes the prefix "co", implying "with", and the morpheme or cognate "commune" with some other forms such as "communion", "communism", "commonwealth" and "company". "Sharing" or "holding in common" are what is meant. Two or more persons are obviously involved in the etymology. The mass media, being one-way do not qualify as communication and the little feedback that occurs through polls, letters or phone-in programs are controlled trickles into the mainstream of media information. To be called communication, media must include operating cybernetic loops with significant exchange between senders and receivers; dialogue must replace the-present monolgue. Commercial media claiming to "communicate" have usurped the term; they do not communicate; they do inform, however, but because of their excommunication function they may actually alienate people. Scholars usuage over the years is examined including some now beginning to recognize this solecism and to argue against communication's further abuse. Telidon is questioned as to its interactive claims.
The Political Agendas of Three Newspapers and City Governments
Authors: Black Edwin R. , Snow Peter
Published: May 2017

The political power of writers has been suspect for a long time. The record goes back at least as far as Plato. In The Republic, he tells us the authorities will always have to control poets and dramatists carefully. Otherwise, they will soon lead the common people out of the paths of goodness and mercy laid down by their betters. The Lord Chamberlain of England was specially charged with keeping a close eye on the likes of Christopher Marlowe and William Shakespeare. Some years after their time, Andrew Fletcher was also proclaiming the political power of popular communcation when he declared: "Let me write the songs of a country and I care not who writes its laws."
The Origins of Public Broadcasting in Canada in Comparative Perspectives
Authors: Dewar Kenneth C.
Published: May 2017

One persistent element in the received version of Canadian cultural and economic history is the symbiotic relationship in which national identity and state economic activity are seen to exist. On the one hand, a large measure of state participation has been regarded as an important distinguishing feature of Canadain capitalism. On the other, the willingness of Canadians to accept such participation is said to be a product of their desire to preserve a distinct identity, to survive independently on the North American continent. Nowhere is the belief in this interconnection more evident than in studies of Canadian broadcasting policy.
Skirting the Minefield: Press Censorship, Politics and French Canada, 1940
Authors: Kerr George D.
Published: May 2017

In a democracy with a strong tradition of freedom of the press, the imposition of censorship as a wartime necessity is rarely accomplished without considerable difficulty in its execution and in the definition of its limits.
Effect of 3-D Television on Spontaneous Recall and Learning
Authors: Fouts Gregory T. , Johnston Charlotte
Published: May 2017

Children's spontaneous recall and learning of 3-D and conventional television programs were assessed. Three dimensional reality interferred with spontaneous recall however no difference in learning in 3-D and conventional programs occurred.
Istorija medicine - u cemu je problem
Authors: Jovanovic-Simic Jelena
Published: May 2017

nema
Changes in occlusal function after extraction of premolars: 2-year follow-up
Authors: Yoon Wookang , Hwang Soonshin , Chung Chooryung , Kim Kyung-Ho
Published: May 2017

Objective:

To determine the effects of extraction and the number of teeth extracted on changes in occlusal function by measuring occlusal contact area and force before and after orthodontic treatment with a fixed appliance.

Materials and Methods:

Female patients treated with a fixed appliance were divided into nonextraction (n = 36), two maxillary premolar extraction (n = 31), and four premolar extraction (n = 18) groups. Bite pressure-sensitive films were used to analyze the occlusal contact area and force. Measurements were performed before treatment (Pre-Tx), immediately afterward (After-Tx), and 2 years later (2Y After-Tx). The data were analyzed using a linear mixed model and the post hoc Bonferroni test.

Results:

The occlusal contact area and force after treatment decreased significantly compared with Pre-Tx values but were increased 2 years later in all groups. There were no significant differences in occlusal contact area or force during the entire observation period among the three groups (P > .05). The occlusal contact area and force in the nonextraction and two maxillary premolar extraction groups recovered to Pre-Tx levels 2 years later (P > .05). The occlusal contact area in the four premolar extraction group was significantly lower than the Pre-Tx level after 2 years of retention (P < .05).

Conclusions:

The occlusal contact area and force showed a tendency to decrease immediately after treatment and then gradually increase to pretreatment levels during the observation period. However, the occlusal contact area did not recover fully after 2 years in the four premolar extraction group.
Coupling digital terrain to radiative transfer model to assess surface solar radiation at high resolution scale: validation of GIS module r.sun in Galicia
Authors: A. Pettazzi  , S. Salsón
Published: May 2017

When estimating solar radiation at regional scale, topography plays a very important role as it modifies radically the spatial distribution of insolation. For this reason, radiative transfer models need to be coupled to a digital terrain model. This work pretend to validate one of the most outstanding GIS tools with the complex Galician topography. Several data proceeding from different satellites were used as inputs. The accuracy of r.sun module was tested for both cloudless and overcast conditions. The results achieved point out the good accuracy of r.sun, especially under clear skies.
Modelling of Photovoltaic Generators Based on a Linarized Equivalnet Circuit
Authors: Andreas D. Theocharis  , Eleftheria C. Pyrgioti  , Ioannis A. Naxakis
Published: May 2017

In this paper, a new method on modeling of PV generators, for association with electromagnetic software programs, is proposed. The application of a linearization process, on nonlinear and well-tested current-voltage equations using Taylor’s scheme, leads to uncoupling of the current and voltage quantities in each time step of a digital simulation. This uncoupling is represented by a linearized equivalent electrical circuit. Using the proposed equivalent photovoltaic generator circuit, the application of nodal analysis on equivalent resistive circuits derives a photovoltaic system model of linear algebraic equations. This remarkably simplifies photovoltaic systems modeling because one can develop a photovoltaic generator element in electromagnetic transient programs for power systems analysis.
A proposal for Computational Refunding Analysis based on real time disturbances measurements
Authors: I. N. Gondim  , C. E. Tavares  , J. A. F. Barbosa Jr.  , J. C. Oliveira  , A. Oliveira  , P. H. O. Rezende
Published: May 2017

This article is aimed at presenting and establishing computational procedures to evaluate refunding requests for damages based on mechanisms that allow the insertion of the problem, coming from direct measurements, in an application for this purpose (APR 2.0 Software). For such, it is described a structure to measure, process, and transfer real-time information on incidents in power system, and its corresponding insertion in the aforementioned software. The basic philosophy is in the direct registration of disturbances, which, until then, had been obtained through computer simulations. Experimental studies are also presented and discussed to illustrate and validate the proposal made.
A Novel Scheme to Protect Distribution Networks in Presence of Inverter-Based Distributed Generation
Authors: E. Ebrahimi  , G. B. Gharehpetian  , J. Milimonfared
Published: May 2017

One of the most important challenges of distributed generation (DG) development in distribution systems is their protection. It is necessary to have a scheme for keeping the protection settings unchanged. In this paper, adverse impacts of the inverter based distributed generation (IBDG) are evaluated, and an algorithm is proposed to limit the fault current, feed, which is generated by IBDGs. This algorithm is only implemented on the inverter controller and other elements are not used in fault current limitation. The simulation results are provided to verify the proposed control scheme.
Economic impact of non dispatchable generation on the cost of energy supply and on the adjustment services
Authors: Ingrid Oliveros Pantoja  , Máximo López Toledo
Published: May 2017

This article presents an analysis of the economic impact of non dispatchable generation on the cost of the energy supply and on the adjustment services and aims to analyze the economic impact of the renewable generation into the Spanish production and adjustment services markets, and thus to help prospective investors in renewable generation projects to analyze the situation of the Spanish electricity market.
Development of a Quality Management System for Electric Power applied to Small Wind Turbines
Authors: Ando Junior, O. H.  , Oliveira, M. O.  , Neto, J. M  , Spacek, A. D.  , Leborgne, R. C  , Bretas, A. S
Published: May 2017

This paper presents a methodology for calculating and monitoring power quality using discrete signal processing techniques, enabling the detection and quantification of electromagnetic disturbances in transient and steady state time periods. The limits of power quality disturbances that will be monitored are defined by international norm (IEEE 1159). Together with the power quality monitoring system, a power quality assessment was implemented by changing the input variables of the generator in order to restore the standards of the power grid (voltage, current and frequency). The proposed system is a management system, able to identify, quantify and monitor the power quality and can be used as a diagnostic tool for maintenance and a control system for decision-making to reestablish the generation system.
Use of Newton's Method for Rotor-Resistance Control of Wind Turbine Generators
Authors: A. F. Bastos  , E. F. Cota  , S. R. Silva  , H. A. Pereira
Published: May 2017

The advancement in the use of renewable sources of electricity has been promoting the manufacture of wind turbines. This paper analyzes the influence of the insertion of resistance in the rotor of induction machines during voltage sags to improve its operation and presents a new approach. The control strategy uses the Newton’s Method, which is a numerical method. A simulation in a wind generator was realized, proving the control efficiency.
Development of PtNi/C and PtSnNi/C Nanocatalysts for Energy Convertion from Ethanol Electrooxidation
Authors: P. Correa  , E. Leal da Silva  , R. Figueira  , C. Radtke  , B. Moreno  , E. Chinarro  , C. Malfatti
Published: May 2017

Literature describes the importance in studying morphological and structural electrocatalysts features since they influence catalytic activity toward ethanol electrooxidation. Thus, this work consists in studying the relation between structural/composition features and catalytic activity toward ethanol electrooxidation from Pt, PtSn, PtNi and PtSnNi alloys nanoparticles supported on Vulcan Carbon XC72R. These nanoparticles were obtained by the impregnation reduction method at 130 ºC, employing a mixture of water/ethylene glycol (75/25 v/v) with different amounts of Pt, Sn and Ni. The nanostructured catalysts obtained were characterized by Rutherford Backscattering Spectroscopy (RBS), X-Ray Diffraction (XRD), High Resolution Transmission Electronic Microscopy (HRTEM) and Cyclic Voltammetry (CV). Preliminary results showed that the impregnation reduction is a reasonable method to obtain Pt-based nanoparticles with a composition control. XRD analysis showed that tin and nickel addition promoted a crystal lattice dilation and contraction, respectively. Besides, the simultaneous addition of Sn and Ni to Pt did not significantly affect the reticular lattice value. Moreover, crystallite size is diminished with Ni or Ni and Sn addition. PtSn, PtNi and PtSnNi/C nanoparticles have higher catalytic activity than Pt/C toward ethanol electrooxidation, which was verified by a significant current density values increase and an onset potential decrease. The best catalytic activity was observed to PtNi/C electrocatalyst.
Uncertainty Budget Analysis and its role in Microbial Fuel Cell Parameter Characterization
Authors: M.C.J Andrews  , D. P. Sharma  , H.P.S. Missan
Published: May 2017

Many renewable technologies are currently being investigated to reduce the world’s dependence on greenhouse-gas emitting energy sources. This paper seeks to demonstrate how industrial metrological techniques may be employed in the evaluation of uncertainty of one of these techniques – the Microbial Fuel Cell. A description of how uncertainty analysis is evaluated in metrological laboratories for temperature measurement is presented, with the intention of applying the same technique to temperature measurements obtained when assessing microbial fuel cell performance. A JAVA-based temperature uncertainty budget calculator was also developed based on the assumptions used to perform the uncertainty analysis. This open-source application enables laboratories to compare uncertainties in their temperature measuring instruments. The Uncertainty Analysis is based on a method employed at an ISO/IEC 17025:2005 accredited Metrological Laboratory
Energy system aspect in Brazil
Authors: C. A. V. Carneiro  , J. C. S. Oliveira  , A. B. Caldeira
Published: May 2017

Brazilian energy matrix development has been dominated by hydropower due to the abundant natural relief. Additionally, small hydropower (SHP) is made within the country of difficult access, with the aim of providing energy in this region. On the other hand, there is the growth of alternative energies such as wind, thermal, thermonuclear, solar, and especially bioenergy, biofuels are observed. In turn, social and environmental impacts are studied as to minimize its effects in promoting more sustainable local neighborhood. Legal issues are fundamental to its environmental regulations so as to avoid the environmental impacts generated. This article describes the renewable energy alternatives that do not pollute the environment, and are used in the country, as well as the aspect of investment and financing in the Brazilian energy matrix.
Smart Structural Control Strategies for Offshore Wind Power Generation with Floating Wind Turbines
Authors: Ningsu Luo  , Ningsu Luo  , Lluís Pacheco  , Yolanda Vidal  , Hui Li
Published: May 2017

Offshore wind energy is one of the fastest growing powers in the field of renewable energy. An offshore wind farm situated sufficiently far away from the coast can generate more wind power and will have a longer operation life since the wind is stronger and more consistent than that on or near the coast. It can also avoid some major problems of the traditional wind farms like the visual and noise impacts and potential damage to wildlife. From the technical point of view, it is difficult to anchor the wind turbines directly on the seabed in deep water. Thus, new constructive solutions based on floating support structures are proposed. One of the main challenges is to reduce the fatigue of a floating offshore wind turbine so as to guarantee its proper functioning under the constraints imposed by the floating support structures subject to a greater range of motion than that of the fixed-bottom support structures. This paper analyzes the loads and dynamic response of floating support structures and proposes the smart control strategies for mitigating the dynamic wind and wave loads on floating wind turbines.
Investigating University Personnel Computers (PC) Produced Harmonics Effect on line Currents
Authors: M. H. Shwehdi  , F. S. AL-Ismail
Published: May 2017

Nonlinear loads connected to a sinusoidal source inject  harmonic  currents  into  the  source.  Nonlinear  load  is  a load  that  draws  none  sinusoidal  current  wave  when  supplied by  a  sinusoidal  voltage  source.  Much  attention  has  been focused on large power converters as sources of harmonics due to  the  high  magnitude  of  the  currents  evolved.    Nevertheless, harmonics   generated   by   low   power   converters   become significant   when   large   numbers   of   converters   are   used simultaneously.  In  this  paper  the  influence  of  the  personal computers  in  the  line  current  harmonics  in  some  buildings  at King  Fahd  University  of  Petroleum  and  Minerals  (KFUPM) have  been  investigated.  The  harmonics  were  monitored  from the main switched boards of each building that has the highest number of PC’s and from the switch boards  of each computer labs  in  these  buildings.  This  investigation  may  help  in  pin-pointing the  harmonic  generating  sources,  effects,  and how to mitigate,   also   to   obtain   the   actual   PC   operation   of   the university   and   its   harmonic   contribution.   Measurements indicate  that  two  buildings  of  the  highest  PC's  numbers  do have harmonics but one building harmonics is higher than that allowed  by  IEEE-519  standards  [1]  limits  and  the  other  does not influence phase current and it is within allowable limits.
Estimation of power components for non-sinusoidal currents and voltages regarded as power quality indices
Authors: P. Janik  , Z. Wacławek
Published: May 2017

This  paper  deals  with  the  computation  of  power components  of  distorted  signals  seen  as  power  quality  indices. The  proliferation  of  nonlinear  devices  into  the  power  system results    in    nonlinear    voltages    and    currents    whereas    this unfortunate trend is supposed to increase. The  prime  tool  for  spectral  analysis  is  the  Discrete  Fourier Transform,   establishing   the   preliminary   step   in   the   power components  computation  of  distorted  signals.  Power  definitions proposed   by   Budeanu   and   afterwards   by   Shepherd   and Zakikhani  require  spectral  components  as  input.  Windowing, leakage  and  other  DFT  properties  and  limitations  influence significantly the assessment of power components. The  power  definition  proposed  by  Skopec  and  Stec  is  totally confined to signals represented in time domain. Similar idea was firstly  outspoken  by  Fryze  and  entirely by-passed  the  issue  of spectral components computation. The  authors  made  an  attempt  to  apply  practically  different approaches    to    power    components    computation    for    non-sinusoidal currents and voltages.
Minimization of torque ripple in switched reluctance motor drives using direct instantaneous torque control
Authors: J. Castro  , P. Andrada  , B. Blanqué
Published: May 2017

Torque ripple is an inherent characteristic of switched reluctance motor drives due to its double salient geometry and it is a serious drawback in applications that require smooth torque and high dynamic performances. This paper presents some contributions to the minimization of torque ripple in SRM using direct instantaneous torque control (DITC). Direct torque controller is simulated using Matlab/Simulink and then implemented in a DSPACE ACE kit 1006 CLP that includes a processor board with an AMD OpteronTM running at 2.6 GHz. Finally, experimental results are shown and they are compared with those obtained using conventional angle control.
Matlab based Model of 40-MW Concentrating Solar Power Plant
Authors: Silvano Vergura  , Virginio Di Fronzo
Published: May 2017

The paper proposes the Matlab based model of a Concentrating Solar Power plant (CSP), rated of 40 MW. The modelled system considers the technology of parabolic through and follows the layout of a pilot project, to be realized in the south of Italy. As that project contains also the thermal storage, the input and output temperature are well-defined. The conversion to the electrical energy is obtained by a common fossil fuel power station. Then only the primary loop of the whole system has been considered for the proposed model. The model allows to evaluate the thermal performance and the thermal eficiency of the primary loop constituting a CSP.
Estimation of Power System Harmonics and Interharmonics in the Presence of Aperiodic Components
Authors: M.A. Zorrozua  , J. Lazaro  , J.F. Miñambres  , B. Larrea  , M.Sanchez
Published: May 2017

A new simple method is presented in order to analyze the full harmonic spectrum (harmonic and interharmonic) of a transient signal. The proposed algorithm features a trade-off between accuracy and computational burden. The results obtained show that this method significantly improves the estimation of power system harmonics and interharmonics.
Impact of Compact Fluorescent Lamps on the Excessive Transmission Line Losses
Authors: K. Deželak  , P. Sukič  , G. Štumberger
Published: May 2017

The proposed paper deals with the calculation of the excessive transmission line losses caused by the compact fluorescent lamps. The number of the installed compact fluorescent lamps is rapidly increased, nowadays. Since such a lamps have large impact on the power factor as well as on the voltage and current total harmonic distortion their inclusion to the low voltage electrical grid should be fully investigated. In the paper the numerical model, with nonlinear characteristics of compact fluorescent lamps inclusion, is dealt. The numerically analysis is performed for four different compact fluorescent lamps available on the Slovenian market.
Inertia and Governor Ramp Rate Constrained Economic Dispatch to Assess Primary Frequency Response Adequacy
Authors: Hector Chavez  , Ross Baldick
Published: May 2017

The contribution of non-dispatchable, renewable generation to both total grid inertia and grid frequency response is significantly lesser than that of dispatchable, thermal generation. In large non-dispatchable generation penetration scenarios, the effect of inertia and frequency response diminution on primary frequency control reserves adequacy will be important. This paper develops a constraint on the economic dispatch problem that assures that frequency nadirs after a given sudden loss of generations will not be lower than a given limit. This constraint considers system inertia and governor ramp rate limits. A simulation using the IEEE Reliability Test System is presented.
Evaluation of simple wind power forecasting methods applied to a long-term wind record from Scotland
Authors: W.-G. Früh
Published: May 2017

We present an analysis of the ability to predict the power output from a nominal wind turbine or wind farm a few hours ahead using only locally available data – either the current and recent wind speed or power output. A third method combines the current state with knowledge of the long-term climatology. The wind speed data were taken from a 46-year long record of hourly readings at a Scottish coastal site and converted to power output and electricity production using a generic wind turbine power curve. The wind speed data or the calculated power output at a given time were used to predict the output a few hours ahead, either using persistence, a linear model, or a model based on the mean daily cycle extracted from the long-term record. Since many wind farm operators base their forecast on current wind speed or output measures alone, this analysis will provide some quantification of the quality of this approach, either to help them plan their operation or be able to put these simple methods in quantitative context of more complex methods.
Performance study on solar assisted heat pump water heater using CO2 in a transcritical cycle
Authors: M. Raisul Islam  , K. Sumathy  , J. Gong  , Samee Ullah Khan
Published: May 2017

This study reports the numerical analyses of a CO2 transcritical cycle on solar assisted heat pump water heating system in which evacuated tube U-pipe solar collector is utilized as an evaporator. This simulation model can predict operating characteristics for moderate meteorological conditions of North Dakota. The main purpose of this work is to simulate the overall performance of the heat pump cycle by varying compressor speed. From the analysis the coefficient of performance (COP) value is predicted from 1.5 – 2.8 with three different average solar insolation. The results showed that the performance of the system significantly influenced by the compressor speed and solar irradiation. This study also calculated the instantaneous collector efficiency and found in the range of 50 – 55%.