Economic Theory and Broadcasting.

Science.gov (United States)

Bates, Benjamin J.

Focusing on access to audience through broadcast time, this paper examines the status of research into the economics of broadcasting. The paper first discusses the status of theory in the study of broadcast economics, both as described directly and as it exists in the statement of the basic assumptions generated by prior work and general…

8 CFR 204.13 - How can the International Broadcasting Bureau of the United States Broadcasting Board of...

Science.gov (United States)

2010-01-01

... description of the job to be performed; and (ii) The broadcasting expertise held by the alien, including how... broadcasts; hosts for news broadcasts, news analysis, editorial and other broadcast features; or a news analysis specialist. The term broadcaster does not include individuals performing purely technical or...

47 CFR 0.434 - Data bases and lists of authorized broadcast stations and pending broadcast applications.

Science.gov (United States)

2010-10-01

... stations and pending broadcast applications. 0.434 Section 0.434 Telecommunication FEDERAL COMMUNICATIONS... Commission § 0.434 Data bases and lists of authorized broadcast stations and pending broadcast applications... broadcast stations, pending applications for such stations, and rulemaking proceedings involving amendments...

Broadcast Services. Information Bulletin No. 3.

Science.gov (United States)

Federal Communications Commission, Washington, DC.

Radio and television broadcasting is authorized and regulated by the Federal Communications Commission (FCC). Following a brief description of the development of broadcasting, broadcast regulations, and the Commission, this report examines various aspects of the subject pertaining to the fairness doctrine, political broadcasting, advertising, sale…

Broadcasting environmental knowledge: Open University & BBC collaborations serving massive global audiences

Science.gov (United States)

Brandon, M. A.; Smith, J.; Garrow, K. H.; Law, A.

2013-12-01

The UK Open University has a long history of working with broadcast media - indeed before it first formed over 40 years ago it was proposed to be a "University of the Air ". Originally the University made its own television programmes that were directly connected with teaching. They were usually recordings of academics giving lectures that were broadcast late at night. Over recent times we have moved into developing co-productions with mainstream broadcast media specifically designed to be of general educational interest to UK and worldwide audiences. These include both high impact one-off programmes such as Are we changing planet Earth?, multiple international award winning series such as Frozen Planet, and World Service radio such as Earth Reporters. These programmes have had global audiences; in some cases of tens of millions. Whilst we have only worked using clear scientific evidence and expertise, we have co-produced media which small sections of the general public could consider controversial. For example, in Are we changing planet Earth? the case was presented pre IPCC AR4 for anthropogenic climate change. The final episode of Frozen Planet "On thin ice" presented evidence of how the polar climate is changing and likely future global impacts. It created a large and occasionally hostile international media impact long before broadcast. This continued after broadcast in some media but we believe it stopped because the science presented was robust within the current literature. Based around broadcasting, we used a communication strategy based on our personal experience over the last decade along with our institutional experience going back 40 years. For example our outreach include social media, newspapers, radio and podcasts to speak about underpinning science. We use Twitter during actual broadcasts to circulate links to journal articles and provide context around the science presented on screen. Backed up by a large public outreach campaign at science fairs

Implications of Internet on Broadcasting

DEFF Research Database (Denmark)

Henten, Anders; Tadayoni, Reza

One of the main challenges within broadcasting research in the recent years has been to understand the evolution from traditional broadcasting to digital broadcasting. The aim of this paper is to step further and give an analysis of Internet’s influence on traditional broadcasting services....... In this analysis an inter-disciplinary approach is used, where technological, economic, political and cultural drivers and barriers in this development are identified. It is then shown to what degree these parameters and the inter-relation between them influence this development....

Asymptotically exact expression for the energies of the 3Se Rydberg series in a two-electron system

International Nuclear Information System (INIS)

Ivanov, I.A.; Bromley, M.W.J.; Mitroy, J.

2002-01-01

The 1sns 3 S e Rydberg series in a two-electron system with the charge of the nucleus, Z≅1, is treated by means of the quantum-defect theory. Comparison with configuration interaction calculations suggests that the quantum-defect expression for the energy levels becomes asymptotically exact as Z→1. This provides an analytic description of the disappearance of the 1sns 3 S e bound states when Z approaches the critical value of 1

Evolution of broadcast content distribution

CERN Document Server

Beutler, Roland

2017-01-01

This book discusses opportunities for broadcasters that arise with the advent of broadband networks, both fixed and mobile. It discusses how the traditional way of distributing audio-visual content over broadcasting networks has been complemented by the usage of broadband networks. The author shows how this also gives the possibility to offer new types of interactive or so-called nonlinear services. The book illustrates how change in distribution technology is accelerating the need for broadcasters around the world to adapt their content distribution strategy and how it will impact the portfolios of content they offer. Outlines the shift in broadcast content distribution paradigms and related strategic issues Provides an overview of the new broadcasting ecosystem encompassing new types of content, user habits, expectations, and devices Discusses complementary usage of different distribution technologies and platforms.

Optic Fibers as a Broadcasting Media

Directory of Open Access Journals (Sweden)

Jusuf QARKAXHIJA

2018-04-01

Full Text Available Fast brodcasting of an information is always a challange from our daily activities. Through fast broadcasting of the information always created pre-eminence in military activities, business, researching, etc. From ancient times we know that information was orally and hand in hand broadcasted which in most of the times casused in loss of information and due to this also in loss of activities which are mentioned above. Due to information technology notably computer networks and internet overtime information started broadcasting faster. Information started broadcasting through copper wires and through wireless. Big applications started to develop with the increased use of Internet, high quality broadcasting (HD, video on demand broadcasting (VoD, triple pay broadcasting (three services on a medium, etc., then these two mediums couldn’t complete all these requests. Therfore after these problems, optic fiber began to be used as a broadcasting medium which eleminated all the defects of other mediums. Importance of this paper work is telling developing stages of optic fiber, it’s characteristics and it’s losses. Then it is shown that which devises enforce the signal of fibers and in the end all three mediums that we mentioned are compared on the basis of attributes. Findings form the paper will only enforce that knowledge we had before about optic fiber, the best broadcasting medium.

The Use of Television Format Adaptation in Denmark: Public Service Broadcasters Compared to Commercial Broadcasters

DEFF Research Database (Denmark)

Jensen, Pia Majbritt

brought about major changes in both production and scheduling. This paper evaluates the impact that format adaptation has had in Denmark on public service broadcasters (PSBs) compared to commercial broadcasters. To illustrate transnational differences, references are made to Germany and Australia. First......, a quantitative analysis of PSB and commercial schedules in Denmark is presented to establish the extent to which PSBs have employed formats between 2000 and 2012, and how this compares with commercial broadcasters. Secondly, a qualitative analysis looks into genre and the nature of the individual formats...... employed to assess any important differences between the formats in the two sectors. Most formats fall within entertainment and is well suited to providing the consumption friendly environment that commercial broadcasters seek to offer their advertising clients (Brennan 2012). Broadcasters also favour...

Commercial satellite broadcasting for Europe

Science.gov (United States)

Forrest, J. R.

1988-12-01

A review is presented of the current television broadcasting situation in European countries, which involves a varied mix of terrestrial VHF or UHF systems and cable networks. A small market has emerged in Europe for receivers using the low-power telecommunications satellite transmission between the program providers and cable network companies. This is expected to change with the launch of medium-power pan-European telecommunication satellites (e.g. ASTRA, EUTELSAT II), which are now directly addressing the market of home reception. DBS (direct broadcast satellite) in the UK, using the D-MAC transmission standard, will offer three additional television channels, data broadcasting services, and a planned evolution to compatible forms of wide-screen, high-definition television. Comments are given on receiver and conditional access system standardization. Some views are expressed on satellite broadcasting as part of an overall broadcasting framework for the future.

Broadcasting of inseparability

International Nuclear Information System (INIS)

Adhikari, Satyabrata; Choudhury, B S; Chakrabarty, Indranil

2006-01-01

Suppose we are given an entangled pair and asked how well we can produce two entangled pairs starting from a given entangled pair using only local operations. To respond to this question, we study broadcasting of entanglement using a state-dependent quantum cloning machine as a local copier. We show that the length of the interval for probability-amplitude-squared α 2 for broadcasting of entanglement using a state-dependent cloner can be made larger than the length of the interval for probability-amplitude-squared for broadcasting entanglement using a state-independent cloner. Further we show that there exists a local state-dependent cloner which gives better quality copy (in terms of average fidelity) of an entangled pair than the local universal cloner

A Resource Curriculum in Broadcast Media. Bulletin No. 8025.

Science.gov (United States)

Herian, Roger; Moen, Mary

A resource for teachers who design instructional programs in broadcast media, this curriculum guide consists of eight units which deal with the nature of broadcast media, broadcast programming and public interest, broadcast advertising, broadcast regulation, societal effects of broadcasting, broadcasting and future technology, radio broadcasting,…

47 CFR 73.3572 - Processing of TV broadcast, Class A TV broadcast, low power TV, TV translators, and TV booster...

Science.gov (United States)

2010-10-01

... 47 Telecommunication 4 2010-10-01 2010-10-01 false Processing of TV broadcast, Class A TV broadcast, low power TV, TV translators, and TV booster applications. 73.3572 Section 73.3572... Rules Applicable to All Broadcast Stations § 73.3572 Processing of TV broadcast, Class A TV broadcast...

Exact models for isotropic matter

Science.gov (United States)

Thirukkanesh, S.; Maharaj, S. D.

2006-04-01

We study the Einstein-Maxwell system of equations in spherically symmetric gravitational fields for static interior spacetimes. The condition for pressure isotropy is reduced to a recurrence equation with variable, rational coefficients. We demonstrate that this difference equation can be solved in general using mathematical induction. Consequently, we can find an explicit exact solution to the Einstein-Maxwell field equations. The metric functions, energy density, pressure and the electric field intensity can be found explicitly. Our result contains models found previously, including the neutron star model of Durgapal and Bannerji. By placing restrictions on parameters arising in the general series, we show that the series terminate and there exist two linearly independent solutions. Consequently, it is possible to find exact solutions in terms of elementary functions, namely polynomials and algebraic functions.

“Reality Surgery” — A Research Ethics Perspective on the Live Broadcast of Surgical Procedures

Science.gov (United States)

Williams, Judson B.; Mathews, Robin; D'Amico, Thomas A.

2013-01-01

In recent years, the live broadcasting of medical and surgical procedures has gained worldwide popularity. While the practice has appropriately been met with concerns for patient safety and privacy, many physicians tout the merits of real time viewing as a form of investigation, accelerating the process leading to adoption or abolition of newer techniques or technologies. This view introduces a new series of ethical considerations that need to be addressed. As such, this article considers, from a research ethics perspective, the use of live surgical procedure broadcast for investigative purposes. PMID:21292217

Broadcast Coded Slotted ALOHA

DEFF Research Database (Denmark)

Ivanov, Mikhail; Brännström, Frederik; Graell i Amat, Alexandre

2016-01-01

We propose an uncoordinated medium access control (MAC) protocol, called all-to-all broadcast coded slotted ALOHA (B-CSA) for reliable all-to-all broadcast with strict latency constraints. In B-CSA, each user acts as both transmitter and receiver in a half-duplex mode. The half-duplex mode gives ...

Relation between 'no broadcasting' for noncommuting states and 'no local broadcasting' for quantum correlations

International Nuclear Information System (INIS)

Luo Shunlong; Li Nan; Cao Xuelian

2009-01-01

The no-broadcasting theorem, first established by Barnum et al. [Phys. Rev. Lett. 76, 2818 (1996)], states that a set of quantum states can be broadcast if and only if it constitutes a commuting family. Quite recently, Piani et al. [Phys. Rev. Lett. 100, 090502 (2008)] showed, by using an ingenious and sophisticated method, that the correlations in a single bipartite state can be locally broadcast if and only if the state is effectively a classical one (i.e., the correlations therein are classical). In this Brief Report, under the condition of nondegenerate spectrum, we provide an alternative and significantly simpler proof of the latter result based on the original no-broadcasting theorem and the monotonicity of the quantum relative entropy. This derivation motivates us to conjecture the equivalence between these two elegant yet formally different no-broadcasting theorems and indicates a subtle and fundamental issue concerning spectral degeneracy which also lies at the heart of the conflict between the von Neumann projection postulate and the Lueders ansatz for quantum measurements. This relation not only offers operational interpretations for commutativity and classicality but also illustrates the basic significance of noncommutativity in characterizing quantumness from the informational perspective.

Exact low-temperature series expansion for the partition function of the zero-field Ising model on the infinite square lattice

Science.gov (United States)

Siudem, Grzegorz; Fronczak, Agata; Fronczak, Piotr

2016-01-01

In this paper, we provide the exact expression for the coefficients in the low-temperature series expansion of the partition function of the two-dimensional Ising model on the infinite square lattice. This is equivalent to exact determination of the number of spin configurations at a given energy. With these coefficients, we show that the ferromagnetic–to–paramagnetic phase transition in the square lattice Ising model can be explained through equivalence between the model and the perfect gas of energy clusters model, in which the passage through the critical point is related to the complete change in the thermodynamic preferences on the size of clusters. The combinatorial approach reported in this article is very general and can be easily applied to other lattice models. PMID:27721435

Random broadcast on random geometric graphs

Energy Technology Data Exchange (ETDEWEB)

Bradonjic, Milan [Los Alamos National Laboratory; Elsasser, Robert [UNIV OF PADERBORN; Friedrich, Tobias [ICSI/BERKELEY; Sauerwald, Tomas [ICSI/BERKELEY

2009-01-01

In this work, we consider the random broadcast time on random geometric graphs (RGGs). The classic random broadcast model, also known as push algorithm, is defined as: starting with one informed node, in each succeeding round every informed node chooses one of its neighbors uniformly at random and informs it. We consider the random broadcast time on RGGs, when with high probability: (i) RGG is connected, (ii) when there exists the giant component in RGG. We show that the random broadcast time is bounded by {Omicron}({radical} n + diam(component)), where diam(component) is a diameter of the entire graph, or the giant component, for the regimes (i), or (ii), respectively. In other words, for both regimes, we derive the broadcast time to be {Theta}(diam(G)), which is asymptotically optimal.

Olympic Broadcast Rights

OpenAIRE

Žižka, Martin

2014-01-01

Title: Olympic Broadcast Rights Objectives: The main objective of this thesis is to analyse the revenue derived from the sale of the broadcasting rights to the Olympics by Olympic Movement. In the thesis are analysed the total sum of revenue, selected territory and compared the proportion that belongs to the International Olympic Committee and the Organizing Committee of the Olympic Games. The secondary objective is to adapt and calculation of the conversion mechanism for the transfer of amou...

Exact solution of nonsteady thermal boundary layer equation

International Nuclear Information System (INIS)

Dorfman, A.S.

1995-01-01

There are only a few exact solutions of the thermal boundary layer equation. Most of them are derived for a specific surface temperature distribution. The first exact solution of the steady-state boundary layer equation was given for a plate with constant surface temperature and free-stream velocity. The same problem for a plate with polynomial surface temperature distribution was solved by Chapmen and Rubesin. Levy gave the exact solution for the case of a power law distribution of both surface temperature and free-stream velocity. The exact solution of the steady-state boundary layer equation for an arbitrary surface temperature and a power law free-stream velocity distribution was given by the author in two forms: of series and of the integral with an influence function of unheated zone. A similar solution of the nonsteady thermal boundary layer equation for an arbitrary surface temperature and a power law free-stream velocity distribution is presented here. In this case, the coefficients of series depend on time, and in the limit t → ∞ they become the constant coefficients of a similar solution published before. This solution, unlike the one presented here, does not satisfy the initial conditions at t = 0, and, hence, can be used only in time after the beginning of the process. The solution in the form of a series becomes a closed-form exact solution for polynomial surface temperature and a power law free-stream velocity distribution. 7 refs., 2 figs

Broadcast design in cognitive radio ad hoc networks

CERN Document Server

Song, Yi

2014-01-01

This SpringerBrief investigates the special challenges of broadcast design in cognitive radio (CR) ad hoc networks. It introduces two broadcast protocols in CR ad hoc networks: a quality-of-service based broadcast protocol under blind information and a fully-distributed broadcast protocol with collision avoidance. A novel unified analytical model is also presented to analyze the performance of the broadcast protocols. This is the first book dedicated to the unique broadcast design challenges in CR ad hoc networks. The authors also discuss the recent research on the performance analysis of broa

47 CFR 73.4102 - FAA communications, broadcast of.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 4 2010-10-01 2010-10-01 false FAA communications, broadcast of. 73.4102 Section 73.4102 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES Rules Applicable to All Broadcast Stations § 73.4102 FAA communications...

Anthropologists and Broadcasting: Roles and Entry Strategies

Science.gov (United States)

Eiselein, E. B.; Topper, Martin

1976-01-01

The article describes some of the roles open to anthropologists in radio and television. Entry strategies for occupying these roles include taking the first step in approaching the broadcast station, learning about broadcasting, and communicating anthropology to the broadcasters. (Author/NQ)

Safety message broadcast in vehicular networks

CERN Document Server

Bi, Yuanguo; Zhuang, Weihua; Zhao, Hai

2017-01-01

This book presents the current research on safety message dissemination in vehicular networks, covering medium access control and relay selection for multi-hop safety message broadcast. Along with an overall overview of the architecture, characteristics, and applications of vehicular networks, the authors discuss the challenging issues in the research on performance improvement for safety applications, and provide a comprehensive review of the research literature. A cross layer broadcast protocol is included to support efficient safety message broadcast by jointly considering geographical location, physical-layer channel condition, and moving velocity of vehicles in the highway scenario. To further support multi-hop safety message broadcast in a complex road layout, the authors propose an urban multi-hop broadcast protocol that utilizes a novel forwarding node selection scheme. Additionally, a busy tone based medium access control scheme is designed to provide strict priority to safety applications in vehicle...

47 CFR 73.6011 - Protection of TV broadcast stations.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 4 2010-10-01 2010-10-01 false Protection of TV broadcast stations. 73.6011... RADIO BROADCAST SERVICES Class A Television Broadcast Stations § 73.6011 Protection of TV broadcast stations. Class A TV stations must protect authorized TV broadcast stations, applications for minor changes...

Minimizing Broadcast Expenses in Clustered Ad-hoc Networks

Directory of Open Access Journals (Sweden)

S. Zeeshan Hussain

2018-01-01

Full Text Available One way to minimize the broadcast expenses of routing protocols is to cluster the network. In clustered ad-hoc networks, all resources can be managed easily by resolving scalability issues. However, blind query broadcast is a major issue that leads to the broadcast storm problem in clustered ad-hoc networks. This query broadcast is done to carry out the route-search task that leads to the unnecessary propagation of route-query even after route has been found. Hence, this query propagation poses the problem of congestion in the network. In particular this motivates us to propose a query-control technique in such networks which works based on broadcast repealing. A huge amount of work has been devoted to propose the query control broadcasting techniques. However, such techniques used in traditional broadcasting mechanisms need to be properly extended for use in the cluster based routing architecture. In this paper, query-control technique is proposed for cluster based routing technique to reduce the broadcast expenses. Finally, we report some experiments which compare the proposed technique to other commonly used techniques including standard one-class AODV that follows TTL-sequence based broadcasting technique.

A broadcast engineering tutorial for non-engineers

CERN Document Server

Pizzi, Skip

2014-01-01

A Broadcast Engineering Tutorial for Non-Engineers is the leading publication on the basics of broadcast technology. Whether you are new to the industry or do not have an engineering background, this book will give you a comprehensive primer of television, radio, and digital media relating to broadcast-it is your guide to understanding the technical world of radio and television broadcast engineering. It covers all the important topics such as DTV, IBOC, HD, standards, video servers, editing, electronic newsrooms, and more.

WHO OWNS THE BROADCASTING TELEVISION NETWORK BUSINESS IN INDONESIA?

Directory of Open Access Journals (Sweden)

Rendra WIDYATAMA

2018-06-01

Full Text Available Broadcasting TV occupies a significant position in the community. Therefore, all the countries in the world give attention to TV broadcasting business. In Indonesia, the government requires TV stations to broadcast locally, except through networking. In this state, there are 763 private TV companies broadcasting free to air. Of these, some companies have many TV stations and build various broadcasting networks. In this article, the author reveals the substantial TV stations that control the market, based on literature studies. From the data analysis, there are 14 substantial free to network broadcast private TV broadcasters but owns by eight companies; these include the MNC Group, EMTEK, Viva Media Asia, CTCorp, Media Indonesia, Rajawali Corpora, and Indigo Multimedia. All TV stations are from Jakarta, which broadcasts in 22 to 32 Indonesian provinces.

Analysis and Implement of Broadcast Program Monitoring Data

Directory of Open Access Journals (Sweden)

Song Jin Bao

2016-01-01

Full Text Available With the rapid development of the radio and TV industry and the implementation of INT (the integration of telecommunications networks, cable TV networks and the Internet, the contents of programs and advertisements is showing massive, live and interactive trends. In order to meet the security of radio and television, the broadcast of information have to be controlled and administered. In order to master the latest information of public opinion trends through radio and television network, it is necessary research the specific industry applications of broadcast program monitoring. In this paper, the importance of broadcast monitoring in public opinion analysis is firstly analysed. The monitoring radio and television programs broadcast system architecture is proposed combining with the practice, focusing on the technical requirements and implementation process of program broadcast, advertisement broadcast and TV station broadcast monitoring. The more efficient information is generated through statistical analysis, which provides data analysis for radio and television public opinion analysis.

Histories of Public Service Broadcasters on the Web

DEFF Research Database (Denmark)

This edited volume details multiple and dynamic histories of relations between public service broadcasters and the World Wide Web. What does it mean to be a national broadcaster in a global communications environment? What are the commercial and public service pressures that were brought to bear...... when public service broadcasters implemented web services? How did “one- to-many” broadcasters adapt to the “many-to-many” medium of the internet? The thematic or- ganisation of this collection addresses such major issues, while each chapter offers a particular historical account of relations between...... public service broadcasters and the World Wide Web....

Metadata for the description of broadcast assets

DEFF Research Database (Denmark)

Efthimiadis, Efthimis N.; Mai, Jens Erik; Burrows, Paul E.

2003-01-01

The Corporation for Public Broadcasting (CPB) and public broadcasters consider Media Asset Management (MAM) of critical importance since without a concerted and cooperative plan to manage their vast library of content, broadcasters are unable to reach their potential for service in the digital age....... The concerns for Media Asset Management, human and technical, are myriad. Media Asset Management is the framework upon which many of the largest technology projects will be built, including the future interconnection system between and among CPB member stations. It is CPB's hope that its licensees...... and their partners in university, museum, and library communities, will work together to contribute to Media Asset Management solutions. These issues are not unique to Public Broadcasters. Similar issues are faced by all networks at different levels of complexity. This panel will present efforts by broadcasters...

CAPITALISM VS BUSINESS ETHICS IN INDONESIA’S TELEVISION BROADCASTING

Directory of Open Access Journals (Sweden)

Rendra WIDYATAMA

2018-05-01

Full Text Available Generally, in every country, there is supervision of the television broadcasting system. In Indonesia, all television broadcasting is supervised by the Komisi Penyiaran Indonesia/KPI (Indonesian Broadcasting Commission. This commission oversees broadcast television, to ensure all TV broadcasts in Indonesia comply with government regulations. Often the KPI imposes sanctions, but frequent violations still occur. This article describes the results of research on the contradiction between business interests and ethics in the television industry in Indonesia. This study uses the method of evaluation research, where researchers analyze data, here in the form of sanctions documents released by broadcasting commissions. The results reveal that all national private television stations often violate regulations. They prioritize their business interests rather than follow broadcasting guidelines, especially since KPI does not have the full authority to grant and revoke a broadcasting license. The granting and revocation of permits remains under the authority of the government, where political lobbying plays a more significant role.

47 CFR 74.705 - TV broadcast analog station protection.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 4 2010-10-01 2010-10-01 false TV broadcast analog station protection. 74.705... EXPERIMENTAL RADIO, AUXILIARY, SPECIAL BROADCAST AND OTHER PROGRAM DISTRIBUTIONAL SERVICES Low Power TV, TV Translator, and TV Booster Stations § 74.705 TV broadcast analog station protection. (a) The TV broadcast...

The asymptotic and exact Fisher information matrices of a vector ARMA process

NARCIS (Netherlands)

Klein, A.; Melard, G.; Saidi, A.

2008-01-01

The exact Fisher information matrix of a Gaussian vector autoregressive-moving average (VARMA) process has been considered for a time series of length N in relation to the exact maximum likelihood estimation method. In this paper it is shown that the Gaussian exact Fisher information matrix

Exact Slater integrals

International Nuclear Information System (INIS)

Golden, L.B.

1968-01-01

In atomic structure calculations, one has to evaluate the Slater integrals. In the present program, the authors evaluate exactly the Slater integral when hydrogenic wave functions are used for the bound-state orbitals. When hydrogenic wave functions are used, the Slater integrals involve integrands which can be written in the form of a product of an exponential, exp(ax) and a known analytic polynomial function, f(x). By repeated partial integration such an integral can be expressed in terms of a finite series involving the exponential, the polynomial function and its derivatives. PL/1-FORMAC has a built-in subroutine that will analytically find the derivatives of any multinomial. Thus, the finite series and hence the Slater integral can be evaluated analytically. (Auth.)

Energy Efficient Probabilistic Broadcasting for Mobile Ad-Hoc Network

Science.gov (United States)

Kumar, Sumit; Mehfuz, Shabana

2017-06-01

In mobile ad-hoc network (MANETs) flooding method is used for broadcasting route request (RREQ) packet from one node to another node for route discovery. This is the simplest method of broadcasting of RREQ packets but it often results in broadcast storm problem, originating collisions and congestion of packets in the network. A probabilistic broadcasting is one of the widely used broadcasting scheme for route discovery in MANETs and provides solution for broadcasting storm problem. But it does not consider limited energy of the battery of the nodes. In this paper, a new energy efficient probabilistic broadcasting (EEPB) is proposed in which probability of broadcasting RREQs is calculated with respect to remaining energy of nodes. The analysis of simulation results clearly indicate that an EEPB route discovery scheme in ad-hoc on demand distance vector (AODV) can increase the network lifetime with a decrease in the average power consumption and RREQ packet overhead. It also decreases the number of dropped packets in the network, in comparison to other EEPB schemes like energy constraint gossip (ECG), energy aware gossip (EAG), energy based gossip (EBG) and network lifetime through energy efficient broadcast gossip (NEBG).

Analysis of television food advertising on children's programming on "free-to-air" broadcast stations in Brazil.

Science.gov (United States)

Costa, Suzane Mota Marques; Horta, Paula Martins; Santos, Luana Caroline Dos

2013-12-01

To analyze the content of television food advertising on Brazilian 'free-to-air' broadcast stations during children's programming. This is a descriptive study which evaluated the content of food advertising between 08:00 a.m. and 06:00 p.m. on three Brazilian 'free-to-air' broadcast stations (A, B and C). Data collection was performed during 10 week days and weekends. Food advertising was organized according to the food group classification from the Food Guide for the Brazilian Population. The annual exposure to food advertising was obtained considering the national children average exposure to television of five daily hours. The χ2 and Fisher's exact test were conducted in order to identify differences in the content of television advertising in the morning and in the afternoon and between broadcast stations. One hundred and twenty six hours of programming were recorded, totalizing 1,369 commercials - 13.8% of food. There was major participation of 'sugars and sweets' (48.1%) and 'oils and fats' (29.1%) among food advertising and much food publicity in the afternoon (15.7%; morning: 12.2%, p = 0.037). Moreover, the broadcast with more audience was the one that advertised more food (A: 63.5%; B: 12.2%; C: 24.3%), especially 'sugar and sweets' (A: 59.2%; B: 43.5%; C: 21.7%). Finally, an annual average exposure to 2,735.5 commercials was obtained for Brazilian children, totalizing 2,106.3 of food rich in sugar and fat publicity. Food advertising is focused on poor nutritionally food, emphasizing the need for specific intervention strategies.

Developments in the Regulation of Broadcasting Advertising

OpenAIRE

Morris, Yvonne; Randle, Paul

2005-01-01

This Intervention provides a review of developments in the regulation of broadcast advertising within the UK. The piece focuses on the implications of media convergence on broadcast advertising, and provides a brief history and analysis of the regulation of broadcast advertising within the UK. The piece also reviews Advertising Codes and provides an overview of regulatory bodies such as OFCOM and the ASA, and their respective roles.

Gossip-Based Broadcast

Science.gov (United States)

Leitão, João; Pereira, José; Rodrigues, Luís

Gossip, or epidemic, protocols have emerged as a powerful strategy to implement highly scalable and resilient reliable broadcast primitives on large scale peer-to-peer networks. Epidemic protocols are scalable because they distribute the load among all nodes in the system and resilient because they have an intrinsic level of redundancy that masks node and network failures. This chapter provides an introduction to gossip-based broadcast on large-scale unstructured peer-to-peer overlay networks: it surveys the main results in the field, discusses techniques to build and maintain the overlays that support efficient dissemination strategies, and provides an in-depth discussion and experimental evaluation of two concrete protocols, named HyParView and Plumtree.

Broadcast Copywriting and Computer Assisted Instruction.

Science.gov (United States)

Hagerman, William L.

The teaching of broadcast copywriting can be enhanced by computer assisted instruction, especially in screening students' writing for adherence to classic "formulas" or "rules" for broadcast writing. Such rules might include avoiding cliches or not beginning a sentence with a subordinate clause. Other rules the computer can…

The Digital Dividend of Terrestrial Broadcasting

CERN Document Server

Beutler, Roland

2012-01-01

The “digital revolution” of the last two decades has pervaded innumerable aspects of our daily lives and changed our planet irreversibly. The shift from analog to digital broadcasting has facilitated a seemingly infinite variety of new applications—audience interactivity being but one example. The greater efficiency and compression of digital media have endowed broadcasters with a “digital dividend” of spare transmission capacity over and above the requirements of terrestrial broadcasting. The question is, who will use it, and how? Comparing the European experience with that of broadcasters elsewhere in the world, the author sketches the current status of international frequency management, quantifies the value of the “dividend” itself, analyzes the details of the analog-to-digital switchovers already completed, and posits what the future holds for the sector. As we grapple with new devices, inconceivable a mere generation ago, that allow us to access digital media instantly, anywhere and at any...

47 CFR 73.9001 - Redistribution control of digital television broadcasts.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 4 2010-10-01 2010-10-01 false Redistribution control of digital television... RADIO SERVICES RADIO BROADCAST SERVICES Digital Broadcast Television Redistribution Control § 73.9001 Redistribution control of digital television broadcasts. Licensees of TV broadcast stations may utilize the...

Analysis of television food advertising on children's programming on "free-to-air" broadcast stations in Brazil

Directory of Open Access Journals (Sweden)

Suzane Mota Marques Costa

2013-12-01

Full Text Available OBJECTIVE: To analyze the content of television food advertising on Brazilian 'free-to-air' broadcast stations during children's programming. METHODS: This is a descriptive study which evaluated the content of food advertising between 08:00 a.m. and 06:00 p.m. on three Brazilian 'free-to-air' broadcast stations (A, B and C. Data collection was performed during 10 week days and weekends. Food advertising was organized according to the food group classification from the Food Guide for the Brazilian Population. The annual exposure to food advertising was obtained considering the national children average exposure to television of five daily hours. The χ2 and Fisher's exact test were conducted in order to identify differences in the content of television advertising in the morning and in the afternoon and between broadcast stations. RESULTS: One hundred and twenty six hours of programming were recorded, totalizing 1,369 commercials - 13.8% of food. There was major participation of 'sugars and sweets' (48.1% and 'oils and fats' (29.1% among food advertising and much food publicity in the afternoon (15.7%; morning: 12.2%, p = 0.037. Moreover, the broadcast with more audience was the one that advertised more food (A: 63.5%; B: 12.2%; C: 24.3%, especially 'sugar and sweets' (A: 59.2%; B: 43.5%; C: 21.7%. Finally, an annual average exposure to 2,735.5 commercials was obtained for Brazilian children, totalizing 2,106.3 of food rich in sugar and fat publicity. CONCLUSION: Food advertising is focused on poor nutritionally food, emphasizing the need for specific intervention strategies.

Exact boundary controllability for a series of membranes elastically connected

Directory of Open Access Journals (Sweden)

Waldemar D. Bastos

2017-01-01

Full Text Available In this article we study the exact controllability with Neumann boundary controls for a system of linear wave equations coupled in parallel by lower order terms on piecewise smooth domains of the plane. We obtain square integrable controls for initial state with finite energy and time of controllability near the optimal value.

47 CFR 73.1217 - Broadcast hoaxes.

Science.gov (United States)

2010-10-01

... broadcast station shall broadcast false information concerning a crime or a catastrophe if: (a) The licensee... harm would occur. A “crime” is any act or omission that makes the offender subject to criminal punishment by law. A “catastrophe” is a disaster or imminent disaster involving violent or sudden event...

Mass storage system by using broadcast technology

International Nuclear Information System (INIS)

Fujii, Hirofumi; Itoh, Ryosuke; Manabe, Atsushi; Miyamoto, Akiya; Morita, Youhei; Nozaki, Tadao; Sasaki, Takashi; Watase, Yoshiyuko; Yamasaki, Tokuyuki

1996-01-01

There are many similarities between data recording systems for high energy physics and broadcast systems; the data flow is almost one-way, requires real-time recording; requires large-scale automated libraries for 24-hours operation, etc. In addition to these functional similarities, the required data-transfer and data-recording speeds are also close to those for near future experiments. For these reasons, we have collaborated with SONY Broadcast Company to study the usability of broadcast devices for our data storage system. Our new data storage system consists of high-speed data recorders and tape-robots which are originally based on the digital video-tape recorder and the tape-robot for broadcast systems. We are also studying the possibility to use these technologies for the online data-recording system for B-physics experiment at KEK. (author)

Algorithms for Calculating Alternating Infinite Series

International Nuclear Information System (INIS)

Garcia, Hector Luna; Garcia, Luz Maria

2015-01-01

This paper are presented novel algorithms for exact limits of a broad class of infinite alternating series. Many of these series are found in physics and other branches of science and their exact values found for us are in complete agreement with the values obtained by other authors. Finally, these simple methods are very powerful in calculating the limits of many series as shown by the examples

Broadcasting in America; Second Edition. A Survey of Television and Radio.

Science.gov (United States)

Head, Sydney W.

The plan of this volume follows that of the first (1956) edition: a section on physical bases of broadcasting, one on the origin and growth of broadcasting, another on the economics of broadcasting, a fourth on the social control of broadcasting, and a final section for an assessment of the effects and influences of broadcasting. Special attention…

SURVEI PENANGANAN BROADCAST STORM PROBLEM PADA PROTOKOL ROUTING AODV DI MANET

Directory of Open Access Journals (Sweden)

Indera Zainul Muttaqien

2015-07-01

Full Text Available Komunikasi multi-hop pada lingkungan MANET dapat melibatkan broadcast paket dalam proses route discovery. Protokol routing pada MANET akan melakukan broadcast paket RREQ dan menjalarkannya ke node tujuan secepat dan seefisien mungkin, dimana paket RREQ dari rute yang optimal adalah paket RREQ yang terlebih dahulu sampai ke tujuan. Aktifitas broadcast yang tidak terkontrol dapat menyebabkan suatu kondisi yang disebut broadcast storm problem. Broadcast storm problem dapat berdampak pada terganggunya kinerja dari protokol routing akibat adanya packet redundancy, contention, dan collision. Broadcast storm problem dapat ditangani dengan membatasi jumlah node yang dapat melakukan broadcast. Tujuan utama dari pembuatan makalah ini adalah merangkum beberapa mekanisme terbaru yang telah diakukan oleh para peneliti untuk menangani broadcast storm problem. Kami juga menyajikan perbandingan dari mekanisme tersebut berdasarkan karakteristik dari mekanisme ditinjau dari kesesuaian dengan beberapa skema penanganan broadcast storm problem yang diajukan oleh peneliti sebelumnya, kebutuhan informasi tertentu antar node, lingkungan uji coba dan apakah mekanisme ini dapat diterapkan pada protokol routing lainnya.

Management Theories and Broadcasting: A Handbook.

Science.gov (United States)

Craig, J. Robert; Hindmarsh, Wayne A.

Today's contemporary management and motivation theories, as applied to the business of broadcasting, are the focus of the first section of this paper. It deals with the kinds and reactions of employees in broadcasting stations in relation to 11 motivational theories: (1) Theories X and Y, (2) Immaturity-Maturity Theory, (3) V Theory, (4) Z Theory,…

Architecture and Design of IP Broadcasting System Using Passive Optical Network

Science.gov (United States)

Ikeda, Hiroki; Sugawa, Jun; Ashi, Yoshihiro; Sakamoto, Kenichi

We propose an IP broadcasting system architecture using passive optical networks (PON) utilizing the optical broadcast links of a PON with a downstream bandwidth allocation algorithm to provide a multi-channel IP broadcasting service to home subscribers on single broadband IP network infrastructures. We introduce the design and adaptation of the optical broadcast links to effectively broadcast video contents to home subscribers. We present a performance analysis that includes the downstream bandwidth utilization efficiency of the broadcast link and the bandwidth control of the IP broadcasting and Internet data. Our analysis and simulation results show that the proposed system can provide 100 HDTV channels to every user over fiber lines. We also propose an IPTV channel selection mechanism in an ONT by selecting a broadcast stream. We developed and evaluated a prototype that can achieve a 15-msec IPTV channel selection speed.

Radiofrequency exposure amongst employees of mobile network operators and broadcasters

International Nuclear Information System (INIS)

Litchfield, Ian; Sorahan, Tom; Tongeren, Martie van

2017-01-01

Little is known about personal exposure to radiofrequency (RF) fields amongst employees in the telecommunications industry responsible for installing and maintaining transmitters. IARC classified RF exposure as a possible carcinogen, although evidence from occupational studies was judged to be inadequate. Hence, there is a need for improved evidence of any potentially adverse health effects amongst the workforce occupationally exposed to RF radiation. In this study, results are presented from an exposure survey using data from personal monitors used by employees in the broadcasting and telecommunication industries of the UK. These data were supplemented by spot measurements using broadband survey metres and information on daily work activities provided by employee questionnaires. The sets of real-time personal data were categorised by four types of site determined by the highest powered antenna present (high, medium or low power and ground-level sites). For measurements gathered at each type of site, the root mean square and a series of box plots were produced. Results from the daily activities diaries suggested that riggers working for radio and television broadcasters were exposed to much longer periods as compared to colleagues working for mobile operators. Combining the results from the measurements and daily activity diaries clearly demonstrate that exposures were highest for riggers working for broadcasting sites. This study demonstrates that it is feasible to carry out exposure surveys within these populations that will provide reliable estimates of exposure that can be used for epidemiological studies of occupational groups exposed to RF fields. (authors)

Radiofrequency Exposure Amongst Employees of Mobile Network Operators and Broadcasters.

Science.gov (United States)

Litchfield, Ian; van Tongeren, Martie; Sorahan, Tom

2017-06-15

Little is known about personal exposure to radiofrequency (RF) fields amongst employees in the telecommunications industry responsible for installing and maintaining transmitters. IARC classified RF exposure as a possible carcinogen, although evidence from occupational studies was judged to be inadequate. Hence, there is a need for improved evidence of any potentially adverse health effects amongst the workforce occupationally exposed to RF radiation. In this study, results are presented from an exposure survey using data from personal monitors used by employees in the broadcasting and telecommunication industries of the UK. These data were supplemented by spot measurements using broadband survey metres and information on daily work activities provided by employee questionnaires. The sets of real-time personal data were categorised by four types of site determined by the highest powered antenna present (high, medium or low power and ground-level sites). For measurements gathered at each type of site, the root mean square and a series of box plots were produced. Results from the daily activities diaries suggested that riggers working for radio and television broadcasters were exposed to much longer periods as compared to colleagues working for mobile operators. Combining the results from the measurements and daily activity diaries clearly demonstrate that exposures were highest for riggers working for broadcasting sites. This study demonstrates that it is feasible to carry out exposure surveys within these populations that will provide reliable estimates of exposure that can be used for epidemiological studies of occupational groups exposed to RF fields. © The Author 2016. Published by Oxford University Press.

A BEHAVIORAL-APPROACH TO LINEAR EXACT MODELING

NARCIS (Netherlands)

ANTOULAS, AC; WILLEMS, JC

1993-01-01

The behavioral approach to system theory provides a parameter-free framework for the study of the general problem of linear exact modeling and recursive modeling. The main contribution of this paper is the solution of the (continuous-time) polynomial-exponential time series modeling problem. Both

Exact discretization of Schrödinger equation

Energy Technology Data Exchange (ETDEWEB)

Tarasov, Vasily E., E-mail: tarasov@theory.sinp.msu.ru

2016-01-08

There are different approaches to discretization of the Schrödinger equation with some approximations. In this paper we derive a discrete equation that can be considered as exact discretization of the continuous Schrödinger equation. The proposed discrete equation is an equation with difference of integer order that is represented by infinite series. We suggest differences, which are characterized by power-law Fourier transforms. These differences can be considered as exact discrete analogs of derivatives of integer orders. Physically the suggested discrete equation describes a chain (or lattice) model with long-range interaction of power-law form. Mathematically it is a uniquely highlighted difference equation that exactly corresponds to the continuous Schrödinger equation. Using the Young's inequality for convolution, we prove that suggested differences are operators on the Hilbert space of square-summable sequences. We prove that the wave functions, which are exact discrete analogs of the free particle and harmonic oscillator solutions of the continuous Schrödinger equations, are solutions of the suggested discrete Schrödinger equations. - Highlights: • Exact discretization of the continuous Schrödinger equation is suggested. • New long-range interactions of power-law form are suggested. • Solutions of discrete Schrödinger equation are exact discrete analogs of continuous solutions.

Exact discretization of Schrödinger equation

International Nuclear Information System (INIS)

Tarasov, Vasily E.

2016-01-01

There are different approaches to discretization of the Schrödinger equation with some approximations. In this paper we derive a discrete equation that can be considered as exact discretization of the continuous Schrödinger equation. The proposed discrete equation is an equation with difference of integer order that is represented by infinite series. We suggest differences, which are characterized by power-law Fourier transforms. These differences can be considered as exact discrete analogs of derivatives of integer orders. Physically the suggested discrete equation describes a chain (or lattice) model with long-range interaction of power-law form. Mathematically it is a uniquely highlighted difference equation that exactly corresponds to the continuous Schrödinger equation. Using the Young's inequality for convolution, we prove that suggested differences are operators on the Hilbert space of square-summable sequences. We prove that the wave functions, which are exact discrete analogs of the free particle and harmonic oscillator solutions of the continuous Schrödinger equations, are solutions of the suggested discrete Schrödinger equations. - Highlights: • Exact discretization of the continuous Schrödinger equation is suggested. • New long-range interactions of power-law form are suggested. • Solutions of discrete Schrödinger equation are exact discrete analogs of continuous solutions.

Performance Analysis of Reuse Distance in Cooperative Broadcasting

Directory of Open Access Journals (Sweden)

Jimmi Grönkvist

2016-01-01

Full Text Available Cooperative broadcasting is a promising technique for robust broadcast with low overhead and delay in mobile ad hoc networks. The technique is attractive for mission-oriented mobile communication, where a majority of the traffic is of broadcast nature. In cooperative broadcasting, all nodes simultaneously retransmit packets. The receiver utilizes cooperative diversity in the simultaneously received signals. The retransmissions continue until all nodes are reached. After the packet has traveled a specific number of hops out from the source, denoted as reuse distance, the source node transmits a new broadcast packet in the time slot used for the previous broadcast packet. If the reuse distance is too small, interference causes packet loss in intermediate nodes. In the literature, a reuse distance of three is common. With an analysis based on a realistic interference model and real terrain data, we show that a reuse distance of at least four is necessary to avoid packet loss in sparsely connected networks, especially for high spectral efficiencies. For frequency hopping, widely used in military systems, we propose a novel method. This method almost eliminates interference for a reuse distance of three, increasing the throughput by 33% compared to systems with a reuse distance of four.

75 FR 27199 - Promoting Diversification of Ownership in the Broadcasting Services

Science.gov (United States)

2010-05-14

...'' in explaining the requirements for broadcasters to certify that their advertising contracts do not... for the Commission to require broadcasters renewing their licenses to certify that their advertising... broadcast licensee, cable television system, daily newspaper, or other media outlet subject to the broadcast...

National Workplace Literacy Program. Garment-Related Bilingual (English & Chinese) T.V. Broadcast Lessons. Book I: Episodes 1-15.

Science.gov (United States)

Chinatown Manpower Project, Inc., New York, NY.

This publication contains a series of 15 garment-related bilingual (English and Chinese) television broadcast lessons produced by the National Workplace Literacy Program of Chinatown Manpower Project, Inc. (Other partners were the Union of Needletrades, Industrial and Textile Employees and the Greater Blouse, Skirt and Undergarment Association in…

Adaptive Probabilistic Broadcasting over Dense Wireless Ad Hoc Networks

Directory of Open Access Journals (Sweden)

Victor Gau

2010-01-01

Full Text Available We propose an idle probability-based broadcasting method, iPro, which employs an adaptive probabilistic mechanism to improve performance of data broadcasting over dense wireless ad hoc networks. In multisource one-hop broadcast scenarios, the modeling and simulation results of the proposed iPro are shown to significantly outperform the standard IEEE 802.11 under saturated condition. Moreover, the results also show that without estimating the number of competing nodes and changing the contention window size, the performance of the proposed iPro can still approach the theoretical bound. We further apply iPro to multihop broadcasting scenarios, and the experiment results show that within the same elapsed time after the broadcasting, the proposed iPro has significantly higher Packet-Delivery Ratios (PDR than traditional methods.

Digital terrestrial broadcasting receiver in the U.K; Eikoku chijoha digital hoso jushinki

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

Digital terrestrial broadcasting is broadcasted in parallel with existing UHF analog broadcasting, whereas each of allocated channel frequencies can transmit five to six programs simultaneously. Each home can receive a number of programs with the existing antenna without a need of installing a new satellite antenna or cable. Among the countries of the world running forward to digitization of broadcasting all at once, the U.K. develops advancing movements and leads the world by starting the digital terrestrial broadcasting. In addition to the digitized broadcasting of conventional analog broadcasting programs, the `Ondigitals` (broadcasting operators) have started newly the pay broadcasting. Toshiba has been selected as one of the six developers and manufacturers of digital terrestrial broadcasting receivers, and has developed the digital terrestrial broadcasting receiver DTB2000. For the modulation system, the orthogonal frequency division multiplex (OFDM) was chosen as a system being strong against ghost and most suitable for digital terrestrial broadcasting. In addition, the receiver is equipped with software download function by using the broadcasting waves, and the common interface being the communication specification specified in the DVB (digital video broadcasting) to provide future function expandability. (translated by NEDO)

Beyond the Anchor: Students and Broadcasting Opportunities.

Science.gov (United States)

Marks, Rick

1999-01-01

Describes how the author taught a class (called "Editing for Broadcasting") for 19 neophyte newspeople through total immersion: students learned how to run a newsroom while operating one. Notes that students learned the principles and fundamentals of broadcast journalism, including news judgment, writing, editing, reporting, and…

Perceptions of Advertising Influence on Broadcast News.

Science.gov (United States)

Brown, Hubert W.; Barnes, Beth E.

2001-01-01

Finds that while students (studying broadcast journalism or advertising) and practitioners (station news directors and agency media directors) were in agreement on the majority of opinion statements discussing advertising's influence on broadcast news content, except students were less bothered by advertising's influence on news content than were…

"In the Footsteps of Alexander the Great" PBS Series. Teacher's Guide.

Science.gov (United States)

Corporation for Public Broadcasting, Washington, DC.

This teacher's guide correlates with the Public Broadcasting Service (PBS) television series "In the Footsteps of Alexander the Great" hosted by historian Michael Wood. The four episodes of the series are entitled: "Son of God"; "Lord of Asia"; "Across the Hindu Kush"; and "To the Ends of the…

Prepotential approach to exact and quasi-exact solvabilities

International Nuclear Information System (INIS)

Ho, C.-L.

2008-01-01

Exact and quasi-exact solvabilities of the one-dimensional Schroedinger equation are discussed from a unified viewpoint based on the prepotential together with Bethe ansatz equations. This is a constructive approach which gives the potential as well as the eigenfunctions and eigenvalues simultaneously. The novel feature of the present work is the realization that both exact and quasi-exact solvabilities can be solely classified by two integers, the degrees of two polynomials which determine the change of variable and the zeroth order prepotential. Most of the well-known exactly and quasi-exactly solvable models, and many new quasi-exactly solvable ones, can be generated by appropriately choosing the two polynomials. This approach can be easily extended to the constructions of exactly and quasi-exactly solvable Dirac, Pauli, and Fokker-Planck equations

47 CFR 73.297 - FM stereophonic sound broadcasting.

Science.gov (United States)

2010-10-01

... broadcast station may, without specific authority from the FCC, transmit stereophonic (biphonic... broadcasting must measure the pilot subcarrier frequency as often as necessary to ensure that it is kept at all...

TV Broadcast Efficiency in 5G Networks from Subscriber Prospective

KAUST Repository

Lau, Chun Pong

2015-12-06

The flexibility of radio access network facilitated by 5G networks opens the gateway of deploying dynamic strategies for broadcasting TV channels in an efficient way. Currently, spectrum efficiency and bandwidth efficiency are the two common metrics measuring the efficiency of a system. These metrics assess the net bitrate for a unit of spectrum bandwidth. However, there is a lack of measurement, quantifying the effectiveness of a broadcasting strategy from the user perspective. In this paper, we introduce a novel measurement approach, called broadcast efficiency which considers the mobile user as a main reference. Broadcast efficiency is calculated as the number of served audiences per unit of radio resource. From numerical analysis, we show that broadcasting unpopular TV channels dramatically decreases the broadcast efficiency. This finding is evaluated by employing multiple distributions on the size of audience among TV channels. Furthermore, by conducting a real-life simulation, we discover that a high broadcast efficiency may result in a low percentage of served audiences if the audiences of TV channels are quite evenly distributed.

Equilibrium in a random viewer model of television broadcasting

DEFF Research Database (Denmark)

Hansen, Bodil Olai; Keiding, Hans

2014-01-01

The authors considered a model of commercial television market with advertising with probabilistic viewer choice of channel, where private broadcasters may coexist with a public television broadcaster. The broadcasters influence the probability of getting viewer attention through the amount...... number of channels. The authors derive properties of equilibrium in an oligopolistic market with private broadcasters and show that the number of firms has a negative effect on overall advertising and viewer satisfaction. If there is a public channel that also sells advertisements but does not maximize...... profits, this will have a positive effect on advertiser and viewer satisfaction....

THE IMPACT OF AN EDUCATIONAL TELEVISION SERIES, AN EXPERIMENTAL STUDY.

Science.gov (United States)

MERRILL, I.R.

THE OBJECTIVES OF THIS STUDY WERE TO DISCOVER WHETHER THE DOCUMENTARY TV FILM SERIES, "COUNTY AGENT," HAD APPEAL FOR AND IMPACT UPON A GENERAL AUDIENCE AND WHETHER A SIGNIFICANT RELATIONSHIP EXISTED BETWEEN THE METHODS OF PROGRAM EVALUATION USED. THE TV SERIES, BROADCAST OVER WKAR-TV, CONSISTED OF 13 PROGRAMS ABOUT PROJECTS SPONSORED BY THE…

Broadcasted Location-Aware Data Cache for Vehicular Application

Directory of Open Access Journals (Sweden)

Fukuda Akira

2007-01-01

Full Text Available There has been increasing interest in the exploitation of advances in information technology, for example, mobile computing and wireless communications in ITS (intelligent transport systems. Classes of applications that can benefit from such an infrastructure include traffic information, roadside businesses, weather reports, entertainment, and so on. There are several wireless communication methods currently available that can be utilized for vehicular applications, such as cellular phone networks, DSRC (dedicated short-range communication, and digital broadcasting. While a cellular phone network is relatively slow and a DSRC has a very small communication area, one-segment digital terrestrial broadcasting service was launched in Japan in 2006, high-performance digital broadcasting for mobile hosts has been available recently. However, broadcast delivery methods have the drawback that clients need to wait for the required data items to appear on the broadcast channel. In this paper, we propose a new cache system to effectively prefetch and replace broadcast data using "scope" (an available area of location-dependent data and "mobility specification" (a schedule according to the direction in which a mobile host moves. We numerically evaluate the cache system on the model close to the traffic road environment, and implement the emulation system to evaluate this location-aware data delivery method for a concrete vehicular application that delivers geographic road map data to a car navigation system.

Method and apparatus for scheduling broadcasts in social networks

KAUST Repository

Manzoor, Emaad Ahmed

2016-08-25

A method, apparatus, and computer readable medium are provided for maximizing consumption of broadcasts by a producer. An example method includes receiving selection of a total number of time slots to use for scheduling broadcasts, and receiving information regarding the producer\\'s followers. The example method further 5 includes identifying, by a processor and based on the received information, discount factors associated with the producer\\'s followers, and calculating, by the processor and based on the received information, a predicted number of competitor broadcasts during each time slot of the total number of time slots. Finally, the example method includes determining, by the processor and based on the discount factors and the predicted 10 number of competitor broadcasts during each time slot, a number of broadcasts for the producer to transmit in each time slot of the total number of time slots.

77 FR 33098 - Unlicensed Operation in the TV Broadcast Band

Science.gov (United States)

2012-06-05

...] Unlicensed Operation in the TV Broadcast Band AGENCY: Federal Communications Commission. ACTION: Correcting... matter of ``Unlicensed Operation in the TV Broadcast Band Approval.'' This document contains corrections... of this correction relate to ``Unlicensed Operation in the TV Broadcast Band Approval'' under Sec. 15...

How we use online broadcasting - Web TV - for community engagement

Science.gov (United States)

Allison, M. L.; Conway, F. M.; Matti, J.; Palmer, R.

2013-12-01

The Arizona Geological Survey uses online broadcasting (Webcast or 'Web TV') to help fulfill our statutory mission to 'Inform, advise and assist the public in matters concerning the geological processes, materials and landscapes and the development and use of the mineral resources of this state.' We launched a monthly online broadcast called 'Arizona Mining Review' via Livestream, a low-cost or free video streaming service. The show provides news, interviews, and discussions about mining and mineral resources topics of interest in Arizona, the nation's second largest non-fuel mining state. The costs to set up and broadcast are minor. Interviews with local guests are held in a corner of the AZGS conference room with easy chairs and a couch; long-distance interviews are held via Skype. The broadcast originates from a desktop computer with a webcam, a $60 microphone, three sets of earbud headphones and a powered amplifier. During broadcasts, we supplement interview footage with slides, photos, or video clips that we have or are provided by guests. Initial broadcasts were live; recordings of these were later uploaded to our YouTube channel. Because scheduling and executing a live Internet broadcast is stressful and demanding for both the production team and guests, we recently elected to record and produce episodes prior to broadcasting them. This allows us more control over supplementary materials used during the broadcast; it also permits us to record the broadcast using a high-definition digital video camera that cannot be used for streaming video. In addition to the Arizona Mining Review, we record conferences and workshops and special presentations on topical issues. A video on the recently discovered Little Chino fault has drawn over 3,000 views. Our latest presentations are short 1-2 minute 'video abstracts' delivered by authors of new publications released by the Survey. These include maps and graphics from the reports to help illustrate the topics and their

76 FR 14855 - Television Broadcasting Services; Nashville, TN

Science.gov (United States)

2011-03-18

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 11-29, RM-11622; DA 11-335] Television Broadcasting Services; Nashville, TN AGENCY: Federal Communications Commission. ACTION: Proposed... 73 Television, Television broadcasting. Federal Communications Commission. Kevin R. Harding...

Water vapor estimation using digital terrestrial broadcasting waves

Science.gov (United States)

Kawamura, S.; Ohta, H.; Hanado, H.; Yamamoto, M. K.; Shiga, N.; Kido, K.; Yasuda, S.; Goto, T.; Ichikawa, R.; Amagai, J.; Imamura, K.; Fujieda, M.; Iwai, H.; Sugitani, S.; Iguchi, T.

2017-03-01

A method of estimating water vapor (propagation delay due to water vapor) using digital terrestrial broadcasting waves is proposed. Our target is to improve the accuracy of numerical weather forecast for severe weather phenomena such as localized heavy rainstorms in urban areas through data assimilation. In this method, we estimate water vapor near a ground surface from the propagation delay of digital terrestrial broadcasting waves. A real-time delay measurement system with a software-defined radio technique is developed and tested. The data obtained using digital terrestrial broadcasting waves show good agreement with those obtained by ground-based meteorological observation. The main features of this observation are, no need for transmitters (receiving only), applicable wherever digital terrestrial broadcasting is available and its high time resolution. This study shows a possibility to estimate water vapor using digital terrestrial broadcasting waves. In the future, we will investigate the impact of these data toward numerical weather forecast through data assimilation. Developing a system that monitors water vapor near the ground surface with time and space resolutions of 30 s and several kilometers would improve the accuracy of the numerical weather forecast of localized severe weather phenomena.

An Efficient Live TV Scheduling System for 4G LTE Broadcast

KAUST Repository

Lau, Chun Pong

2016-01-01

Traditional live television (TV) broadcasting systems are proven to be spectrum inefficient. Therefore, researchers propose to provide TV services on fourth-generation (4G) long-term evolution (LTE) networks. However, static broadcast, a typical broadcasting method over cellular network, is inefficient in terms of radio resource usage. To solve this problem, the audience-driven live TV scheduling (ADTVS) framework is proposed, to maximize radio resource usage when providing TV broadcasting services over LTE networks. ADTVS, a system-level scheduling framework, considers both available radio resources and audience preferences, in order to dynamically schedule TV channels for broadcasting at various time and locations. By conducting a simulation using real-life data and scenarios, it is shown that ADTVS significantly outperforms the static broadcast method. Numerical results indicate that, on average, ADTVS enables substantial improvement to broadcast efficiency and conserves considerable amount of radio resources, while forgoing less than 5% of user services compared to the benchmark system.

47 CFR 74.601 - Classes of TV broadcast auxiliary stations.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 4 2010-10-01 2010-10-01 false Classes of TV broadcast auxiliary stations. 74... Television Broadcast Auxiliary Stations § 74.601 Classes of TV broadcast auxiliary stations. (a) TV pickup stations. A land mobile station used for the transmission of TV program material and related communications...

47 CFR 73.6026 - Broadcast regulations applicable to Class A television stations.

Science.gov (United States)

2010-10-01

... television stations. 73.6026 Section 73.6026 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES Class A Television Broadcast Stations § 73.6026 Broadcast regulations applicable to Class A television stations. The following rules are applicable to Class A...

75 FR 10692 - Television Broadcasting Services; Birmingham, AL

Science.gov (United States)

2010-03-09

...] Television Broadcasting Services; Birmingham, AL AGENCY: Federal Communications Commission. ACTION: Final... Television Commission, the licensee of noncommercial educational station WBIQ(TV), channel *10, Birmingham... Part 73 Television, Television broadcasting. 0 For the reasons discussed in the preamble, the Federal...

76 FR 76337 - Television Broadcasting Services; Lincoln, NE

Science.gov (United States)

2011-12-07

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 11-192, RM-11646; DA 11-1924] Television Broadcasting Services; Lincoln, NE AGENCY: Federal Communications Commission. ACTION: Proposed... 73 Television, Television broadcasting. Federal Communications Commission Barbara A. Kreisman, Chief...

Exact Solutions of the Harry-Dym Equation

International Nuclear Information System (INIS)

Mokhtari, Reza

2011-01-01

The aim of this paper is to generate exact travelling wave solutions of the Harry-Dym equation through the methods of Adomian decomposition, He's variational iteration, direct integration, and power series. We show that the two later methods are more successful than the two former to obtain more solutions of the equation. (general)

76 FR 9991 - Television Broadcasting Services; Kalispell, MT

Science.gov (United States)

2011-02-23

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 11-224; MB Docket No. 11-20; RM-11619] Television Broadcasting Services; Kalispell, MT AGENCY: Federal Communications Commission. ACTION: Proposed... 73 Television, Television broadcasting. For the reasons discussed in the preamble, the Federal...

75 FR 67077 - Television Broadcasting Services; Huntsville, AL

Science.gov (United States)

2010-11-01

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 10-2000; MB Docket No. 08-194; RM-11488] Television Broadcasting Services; Huntsville, AL AGENCY: Federal Communications Commission. ACTION: Proposed... 73 Television, Television broadcasting. For the reasons discussed in the preamble, the Federal...

75 FR 25119 - Television Broadcasting Services; Seaford, DE

Science.gov (United States)

2010-05-07

...] Television Broadcasting Services; Seaford, DE AGENCY: Federal Communications Commission. ACTION: Final rule... very high frequency commercial television channel to each State, if technically feasible. DATES: This... Part 73 Television, Television broadcasting. 0 For the reasons discussed in the preamble, the Federal...

76 FR 54188 - Television Broadcasting Services; Montgomery, AL

Science.gov (United States)

2011-08-31

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 11-137, RM-11637; DA 11-1414] Television Broadcasting Services; Montgomery, AL AGENCY: Federal Communications Commission. ACTION: Proposed... 47 CFR Part 73 Television, Television broadcasting. Federal Communications Commission. Barbara A...

75 FR 9859 - Television Broadcasting Services; Beaumont, TX

Science.gov (United States)

2010-03-04

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 10-307; MB Docket No. 10-49; RM-11593] Television Broadcasting Services; Beaumont, TX AGENCY: Federal Communications Commission. ACTION: Proposed... 73 Television, Television broadcasting. For the reasons discussed in the preamble, the Federal...

76 FR 13966 - Television Broadcasting Services; Topeka, KS

Science.gov (United States)

2011-03-15

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 11-33, RM-11623; DA 11-406] Television Broadcasting Services; Topeka, KS AGENCY: Federal Communications Commission. ACTION: Proposed rule... 73 Television, Television broadcasting. Federal Communications Commission. Barbara A. Kreisman, Chief...

76 FR 3875 - Television Broadcasting Services; Decatur, IL

Science.gov (United States)

2011-01-21

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 10-2426; MB Docket No. 10-264; RM-11615] Television Broadcasting Services; Decatur, IL AGENCY: Federal Communications Commission. ACTION: Proposed... 73 Television, Television broadcasting. For the reasons discussed in the preamble, the Federal...

Public and Private Activity in Commercial TV Broadcasting

DEFF Research Database (Denmark)

Olai Hansen, Bodil; Keiding, Hans

2006-01-01

We consider a model of commercial television market, where private broadcasters coexist with a public television broadcaster. Assuming that the public TV station follows a policy of Ramsey pricing whereas the private stations are profit maximizers, we consider the equilibria in this market...

Broadcasted Location-Aware Data Cache for Vehicular Application

Directory of Open Access Journals (Sweden)

Kenya Sato

2007-05-01

Full Text Available There has been increasing interest in the exploitation of advances in information technology, for example, mobile computing and wireless communications in ITS (intelligent transport systems. Classes of applications that can benefit from such an infrastructure include traffic information, roadside businesses, weather reports, entertainment, and so on. There are several wireless communication methods currently available that can be utilized for vehicular applications, such as cellular phone networks, DSRC (dedicated short-range communication, and digital broadcasting. While a cellular phone network is relatively slow and a DSRC has a very small communication area, one-segment digital terrestrial broadcasting service was launched in Japan in 2006, high-performance digital broadcasting for mobile hosts has been available recently. However, broadcast delivery methods have the drawback that clients need to wait for the required data items to appear on the broadcast channel. In this paper, we propose a new cache system to effectively prefetch and replace broadcast data using “scope” (an available area of location-dependent data and “mobility specification” (a schedule according to the direction in which a mobile host moves. We numerically evaluate the cache system on the model close to the traffic road environment, and implement the emulation system to evaluate this location-aware data delivery method for a concrete vehicular application that delivers geographic road map data to a car navigation system.

Static analysis of topology-dependent broadcast networks

DEFF Research Database (Denmark)

Nanz, Sebastian; Nielson, Flemming; Nielson, Hanne Riis

2010-01-01

changing network topology is a crucial ingredient. In this paper, we develop a static analysis that automatically constructs an abstract transition system, labelled by actions and connectivity information, to yield a mobility-preserving finite abstraction of the behaviour of a network expressed......Broadcast semantics poses significant challenges over point-to-point communication when it comes to formal modelling and analysis. Current approaches to analysing broadcast networks have focused on fixed connectivities, but this is unsuitable in the case of wireless networks where the dynamically...... in a process calculus with asynchronous local broadcast. Furthermore, we use model checking based on a 3-valued temporal logic to distinguish network behaviour which differs under changing connectivity patterns. (C) 2009 Elsevier Inc. All rights reserved....

Broadcast Expenses Controlling Techniques in Mobile Ad-hoc Networks: A Survey

Directory of Open Access Journals (Sweden)

Naeem Ahmad

2016-07-01

Full Text Available The blind flooding of query packets in route discovery more often characterizes the broadcast storm problem, exponentially increases energy consumption of intermediate nodes and congests the entire network. In such a congested network, the task of establishing the path between resources may become very complex and unwieldy. An extensive research work has been done in this area to improve the route discovery phase of routing protocols by reducing broadcast expenses. The purpose of this study is to provide a comparative analysis of existing broadcasting techniques for the route discovery phase, in order to bring about an efficient broadcasting technique for determining the route with minimum conveying nodes in ad-hoc networks. The study is designed to highlight the collective merits and demerits of such broadcasting techniques along with certain conclusions that would contribute to the choice of broadcasting techniques.

A special broadcast of CERN's Video news

CERN Multimedia

2003-01-01

A special edition of CERN's video news giving a complete update on the LHC project is to be broadcast in the Main Auditorium. After your lunch make a small detour to the Main Auditorium, where you see the big picture. On 14, 15 and 16 May, between 12:30 and 14:00, a special edition of CERN's video news bulletin will be broadcast in the Main Auditorium. You will have the chance get up-to-date on the LHC project and its experiments. With four years to go before the first collisions in the LHC, the LHC Project Leader Lyn Evans will present a status report on the construction of the accelerator. The spokesmen of the five LHC experiments (ALICE, ATLAS, CMS, LHCb and TOTEM) will explain how the work is going and what the state of play will be in four years' time. This special video news broadcast is the result of collaboration between the CERN Audiovisual Service, the Photo Service and the External communication section. The broadcast will begin with a brand-new programme title sequence. And just as in the real c...

76 FR 5119 - Television Broadcasting Services; Jackson, MS

Science.gov (United States)

2011-01-28

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 11-96; MB Docket No. 11-8; RM-11618] Television Broadcasting Services; Jackson, MS AGENCY: Federal Communications Commission. ACTION: Proposed... CFR 1.415 and 1.420. List of Subjects in 47 CFR Part 73 Television, Television broadcasting. For the...

76 FR 5290 - Television Broadcasting Services; Huntsville, AL

Science.gov (United States)

2011-01-31

...] Television Broadcasting Services; Huntsville, AL AGENCY: Federal Communications Commission. ACTION: Final... the Congressional review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television, Television broadcasting. For the reasons discussed in the preamble, the Federal Communications Commission...

Stochastic dynamics of genetic broadcasting networks

Science.gov (United States)

Potoyan, Davit A.; Wolynes, Peter G.

2017-11-01

The complex genetic programs of eukaryotic cells are often regulated by key transcription factors occupying or clearing out of a large number of genomic locations. Orchestrating the residence times of these factors is therefore important for the well organized functioning of a large network. The classic models of genetic switches sidestep this timing issue by assuming the binding of transcription factors to be governed entirely by thermodynamic protein-DNA affinities. Here we show that relying on passive thermodynamics and random release times can lead to a "time-scale crisis" for master genes that broadcast their signals to a large number of binding sites. We demonstrate that this time-scale crisis for clearance in a large broadcasting network can be resolved by actively regulating residence times through molecular stripping. We illustrate these ideas by studying a model of the stochastic dynamics of the genetic network of the central eukaryotic master regulator NFκ B which broadcasts its signals to many downstream genes that regulate immune response, apoptosis, etc.

Cine-servo lens technology for 4K broadcast and cinematography

Science.gov (United States)

Nurishi, Ryuji; Wakazono, Tsuyoshi; Usui, Fumiaki

2015-09-01

Central to the rapid evolution of 4K image capture technology in the past few years, deployment of large-format cameras with Super35mm Single Sensors is increasing in TV production for diverse shows such as dramas, documentaries, wildlife, and sports. While large format image capture has been the standard in the cinema world for quite some time, the recent experiences within the broadcast industry have revealed a variety of requirement differences for large format lenses compared to those of the cinema industry. A typical requirement for a broadcast lens is a considerably higher zoom ratio in order to avoid changing lenses in the middle of a live event, which is mostly not the case for traditional cinema productions. Another example is the need for compact size, light weight, and servo operability for a single camera operator shooting in a shoulder-mount ENG style. On the other hand, there are new requirements that are common to both worlds, such as smooth and seamless change in angle of view throughout the long zoom range, which potentially offers new image expression that never existed in the past. This paper will discuss the requirements from the two industries of cinema and broadcast, while at the same time introducing the new technologies and new optical design concepts applied to our latest "CINE-SERVO" lens series which presently consists of two models, CN7x17KAS-S and CN20x50IAS-H. It will further explain how Canon has realized 4K optical performance and fast servo control while simultaneously achieving compact size, light weight and high zoom ratio, by referring to patent-pending technologies such as the optical power layout, lens construction, and glass material combinations.

Between Postage Stamps and Digitalization: The Changing Roles of Educational Broadcasting.

Science.gov (United States)

Fleisher, Frederic

1995-01-01

Provides a broadcasting practitioner's perspective of educational broadcasting in Europe, and how, with data compression, the emergence of more television channels can affect the educationalist and public service broadcasting. Discusses technological development, equal access to education, cultural maintenance, advertising, future outlooks, and…

Exact solutions of the vacuum Einstein's equations allowing for two noncommuting Killing vectors

International Nuclear Information System (INIS)

Aliev, V.N.; Leznov, A.N.

1990-01-01

Einstein's equations are written in the form of covariant gauge theory in two-dimensional space with binomial solvable gauge group, with respect to two noncommutative of Killing vectors. The theory is exact integrable in one-dimensional case and series of partial exact solutions are constructed in two-dimensional. 5 refs

75 FR 76294 - Radio Broadcasting Services; Fairbanks, AK

Science.gov (United States)

2010-12-08

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 10-2211; MB Docket No. 10-81; RM-11600] Radio Broadcasting Services; Fairbanks, AK AGENCY: Federal Communications Commission. ACTION: Final rule. SUMMARY... Subjects in 47 CFR Part 73 Radio, Radio broadcasting. 0 For the reasons discussed in the preamble, the...

75 FR 1546 - Television Broadcasting Services; Bangor, ME

Science.gov (United States)

2010-01-12

...] Television Broadcasting Services; Bangor, ME AGENCY: Federal Communications Commission. ACTION: Final rule... the Congressional review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television, Television broadcasting. 0 For the reasons discussed in the preamble, the Federal Communications Commission...

78 FR 44090 - Television Broadcasting Services; Cedar Rapids, Iowa

Science.gov (United States)

2013-07-23

...] Television Broadcasting Services; Cedar Rapids, Iowa AGENCY: Federal Communications Commission. ACTION... acceptance of full power television rulemaking petitions requesting channel substitutions in May 2011, it... 73 Television, Television broadcasting. Federal Communications Commission. Hossein Hashemzadeh...

Danish Drama Series: An Export Success Cradled on the Domestic Market

DEFF Research Database (Denmark)

Degn, Hans-Peter; Jensen, Pia Majbritt; Krogager, Stinne Gunder Strøm

Despite the last twenty years’ intense competition on the Danish TV market and the resulting channel proliferation and dispersal of audiences, the license fee-funded public service broadcaster DR has managed to create and sustain a Sunday evening slot that attracts “the entire nation”. With an av......Despite the last twenty years’ intense competition on the Danish TV market and the resulting channel proliferation and dispersal of audiences, the license fee-funded public service broadcaster DR has managed to create and sustain a Sunday evening slot that attracts “the entire nation......”. With an average audience share of no less than 60 (peaking at almost 90) per cent of viewers, drama series broadcast in the slot between 8pm and 9pm beckons a substantial part of the nation, Sunday after Sunday. Subsequently, many of this slot’s recent series, such as Forbrydelsen [The Killing], Borgen and Bron...... market over the past 20 years. We shall do so by investigating the historical development of DR’s Drama Division and the series’ domestic viewing profiles and settings. According to theories on media economy, media geography and media reception, non-Anglophone audio-visual content rarely exports outside...

Automatic loudness control in short-form content for broadcasting.

Science.gov (United States)

Pires, Leandro da S; Vieira, Maurílio N; Yehia, Hani C

2017-03-01

During the early years of the International Telecommunication Union (ITU) loudness calculation standard for sound broadcasting [ITU-R (2006), Rec. BS Series, 1770], the need for additional loudness descriptors to evaluate short-form content, such as commercials and live inserts, was identified. This work proposes a loudness control scheme to prevent loudness jumps, which can bother audiences. It employs short-form content audio detection and dynamic range processing methods for the maximum loudness level criteria. Detection is achieved by combining principal component analysis for dimensionality reduction and support vector machines for binary classification. Subsequent processing is based on short-term loudness integrators and Hilbert transformers. The performance was assessed using quality classification metrics and demonstrated through a loudness control example.

47 CFR 74.1205 - Protection of channel 6 TV broadcast stations.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 4 2010-10-01 2010-10-01 false Protection of channel 6 TV broadcast stations... 6 TV broadcast stations. The provisions of this section apply to all applications for construction... applicant and each affected TV Channel 6 broadcast station licensee or permittee concurring with the...

Tearing the Fabric of Canada: The Broadcast Media and Canadian Identity.

Science.gov (United States)

Weiss, Elaine F.

This paper explores the perceived threat of American cultural "imperialism" in Canada, the effect of constant exposure to American broadcasting on the Canadian national identity, the role broadcasting plays in shaping Canadian identity, and the efforts by the Canadian government to "Canadianize" its broadcasting. A brief…

Obstacles to broadcasting for national integration in Nigeria.

Science.gov (United States)

Amienyi, O P

1989-01-01

In Nigeria, the media is the major government vehicle to achieve national integration. The problems arise from the approximately 250 ethnic groups speaking many languages. Television and radio have caused disintegration by emphasizing alienation and polarization rather than unity. With more than 178 languages there are major problems for radio and television. The government leaders have promoted a strong interest in creating a unified society through broadcasting, but at the same time have allowed media managers to operate towards goals of ethnic protection. Religion is also a factor that hinders broadcasting for national unity, since there are Hausa and Muslim in the north, Catholic in the south-east, and in the south-west there are many African ethnic religions. More than 60% of the local programming on television is keyed to local religious subjects. Illiteracy is also a problem in the use of broadcasting in the goal of national integration. Only through education of a socially conscious people can the religious fanaticism, ethnocentrism, and tribalism be overcome to form a united nation. Broadcasting can play an important role consistent with the needs of society as a whole. Managers in broadcasting must be well educated, well trained and understand the needs and ambitions of society. They need to support these needs and ambitions, and be constructively critical when necessary for the betterment of society.

National association of broadcasters engineering handbook NAB engineering handbook

CERN Document Server

Jones, Graham A; Osenkowsky, Thomas G; Williams, Edmund A

2013-01-01

The NAB Engineering Handbook provides detailed information on virtually every aspect of the broadcast chain, from news gathering, program production and postproduction through master control and distribution links to transmission, antennas, RF propagation, cable and satellite. Hot topics covered include HD Radio, HDTV, 2 GHz broadcast auxiliary services, EAS, workflow, metadata, digital asset management, advanced video and audio compression, audio and video over IP, and Internet broadcasting. A wide range of related topics that engineers and managers need to understand are also covered, includ

Intelligent Broadcasting in Mobile Ad Hoc Networks: Three Classes of Adaptive Protocols

Directory of Open Access Journals (Sweden)

Michael D. Colagrosso

2006-11-01

Full Text Available Because adaptability greatly improves the performance of a broadcast protocol, we identify three ways in which machine learning can be applied to broadcasting in a mobile ad hoc network (MANET. We chose broadcasting because it functions as a foundation of MANET communication. Unicast, multicast, and geocast protocols utilize broadcasting as a building block, providing important control and route establishment functionality. Therefore, any improvements to the process of broadcasting can be immediately realized by higher-level MANET functionality and applications. While efficient broadcast protocols have been proposed, no single broadcasting protocol works well in all possible MANET conditions. Furthermore, protocols tend to fail catastrophically in severe network environments. Our three classes of adaptive protocols are pure machine learning, intra-protocol learning, and inter-protocol learning. In the pure machine learning approach, we exhibit a new approach to the design of a broadcast protocol: the decision of whether to rebroadcast a packet is cast as a classification problem. Each mobile node (MN builds a classifier and trains it on data collected from the network environment. Using intra-protocol learning, each MN consults a simple machine model for the optimal value of one of its free parameters. Lastly, in inter-protocol learning, MNs learn to switch between different broadcasting protocols based on network conditions. For each class of learning method, we create a prototypical protocol and examine its performance in simulation.

Intelligent Broadcasting in Mobile Ad Hoc Networks: Three Classes of Adaptive Protocols

Directory of Open Access Journals (Sweden)

Colagrosso Michael D

2007-01-01

Full Text Available Because adaptability greatly improves the performance of a broadcast protocol, we identify three ways in which machine learning can be applied to broadcasting in a mobile ad hoc network (MANET. We chose broadcasting because it functions as a foundation of MANET communication. Unicast, multicast, and geocast protocols utilize broadcasting as a building block, providing important control and route establishment functionality. Therefore, any improvements to the process of broadcasting can be immediately realized by higher-level MANET functionality and applications. While efficient broadcast protocols have been proposed, no single broadcasting protocol works well in all possible MANET conditions. Furthermore, protocols tend to fail catastrophically in severe network environments. Our three classes of adaptive protocols are pure machine learning, intra-protocol learning, and inter-protocol learning. In the pure machine learning approach, we exhibit a new approach to the design of a broadcast protocol: the decision of whether to rebroadcast a packet is cast as a classification problem. Each mobile node (MN builds a classifier and trains it on data collected from the network environment. Using intra-protocol learning, each MN consults a simple machine model for the optimal value of one of its free parameters. Lastly, in inter-protocol learning, MNs learn to switch between different broadcasting protocols based on network conditions. For each class of learning method, we create a prototypical protocol and examine its performance in simulation.

76 FR 52632 - Television Broadcasting Services; Panama City, FL

Science.gov (United States)

2011-08-23

...] Television Broadcasting Services; Panama City, FL AGENCY: Federal Communications Commission. ACTION: Proposed rule. SUMMARY: The Commission has before it a petition for rulemaking filed by Gray Television Licensee... 73 Television, Television broadcasting. Federal Communications Commission. Barbara A. Kreisman, Chief...

76 FR 35831 - Television Broadcasting Services; Eau Claire, WI

Science.gov (United States)

2011-06-20

...] Television Broadcasting Services; Eau Claire, WI AGENCY: Federal Communications Commission. ACTION: Proposed rule. SUMMARY: The Commission has before it a petition for rulemaking filed by Gray Television Licensee... 73 Television, Television broadcasting. Federal Communications Commission. Barbara A. Kreisman, Chief...

Broadcasting a message in a parallel computer

Science.gov (United States)

Berg, Jeremy E [Rochester, MN; Faraj, Ahmad A [Rochester, MN

2011-08-02

Methods, systems, and products are disclosed for broadcasting a message in a parallel computer. The parallel computer includes a plurality of compute nodes connected together using a data communications network. The data communications network optimized for point to point data communications and is characterized by at least two dimensions. The compute nodes are organized into at least one operational group of compute nodes for collective parallel operations of the parallel computer. One compute node of the operational group assigned to be a logical root. Broadcasting a message in a parallel computer includes: establishing a Hamiltonian path along all of the compute nodes in at least one plane of the data communications network and in the operational group; and broadcasting, by the logical root to the remaining compute nodes, the logical root's message along the established Hamiltonian path.

Characteristics of hybrid broadcast broadband television (HbbTV

Directory of Open Access Journals (Sweden)

Jakšić Branimir

2017-01-01

Full Text Available This paper describes the working principle of hybrid broadcast-broadband TV (Hybrid Broadcast Broadband TV - HbbTV. The architecture of HbbTV system is given, the principle of its operation, as well as an overview of HbbTV specification standards that are in use, with their basic characteristics. Here are described the services provided by Hybrid TV. It is also provided an overview of the distribution of HbbTV services in Europe in terms of the number of TV channels that HbbTV services offer, the number of active hybrid TV devices, HbbTV standards which are in use and models of broadcast networks used to distribute HbbTV service.

Exact deconstruction of the 6D (2,0) theory

Science.gov (United States)

Hayling, J.; Papageorgakis, C.; Pomoni, E.; Rodríguez-Gómez, D.

2017-06-01

The dimensional-deconstruction prescription of Arkani-Hamed, Cohen, Kaplan, Karch and Motl provides a mechanism for recovering the A-type (2,0) theories on T 2, starting from a four-dimensional N=2 circular-quiver theory. We put this conjecture to the test using two exact-counting arguments: in the decompactification limit, we compare the Higgs-branch Hilbert series of the 4D N=2 quiver to the "half-BPS" limit of the (2,0) superconformal index. We also compare the full partition function for the 4D quiver on S 4 to the (2,0) partition function on S 4 × T 2. In both cases we find exact agreement. The partition function calculation sets up a dictionary between exact results in 4D and 6D.

Exact deconstruction of the 6D (2,0) theory

International Nuclear Information System (INIS)

Hayling, J.; Papageorgakis, C.; Pomoni, E.; Rodriguez-Gomez, D.

2017-06-01

The dimensional-deconstruction prescription of Arkani-Hamed, Cohen, Kaplan, Karch and Motl provides a mechanism for recovering the A-type (2,0) theories on T 2 , starting from a four-dimensional N=2 circular-quiver theory. We put this conjecture to the test using two exact-counting arguments: In the decompactification limit, we compare the Higgs-branch Hilbert series of the 4D N=2 quiver to the ''half-BPS'' limit of the (2,0) superconformal index. We also compare the full partition function for the 4D quiver on S 4 to the (2,0) partition function on S 4 x T 2 . In both cases we find exact agreement. The partition function calculation sets up a dictionary between exact results in 4D and 6D.

Does egg competition occur in marine broadcast-spawners?

Science.gov (United States)

Marshall, D J; Evans, J P

2005-09-01

When the availability of sperm limits female reproductive success, competition for sperm, may be an important broker of sexual selection. This is because sperm limitation can increase the variance in female reproductive success, resulting in strong selection on females to compete for limited fertilization opportunities. Sperm limitation is probably common in broadcast-spawning marine invertebrates, making these excellent candidates for investigating scramble competition between broods of eggs and its consequences for female reproductive success. Here, we report our findings from a series of experiments that investigate egg competition in the sessile, broadcast-spawning polychaete Galeolaria caespitosa. We initially tested whether the order in which eggs encounter sperm affects their fertilization success at two ecologically relevant current regimes. We used a split-clutch-split--ejaculate technique to compare the fertilization success of eggs from individual females that had either first access (competition-free treatment) or second access (egg competition treatment) to a batch of sperm. We found that fertilization success depended on the order in which eggs accessed sperm; eggs that were assigned to the competition-free treatment exhibited significantly higher fertilization rates than those assigned to the egg competition treatment at both current speeds. In subsequent experiments we found that prior exposure of sperm to eggs significantly reduced both the quantity and quality of sperm available to fertilize a second clutch of eggs, resulting in reductions in fertilization success at high and low sperm concentrations. These findings suggest that female traits that increase the likelihood of sperm-egg interactions (e.g. egg size) will respond to selection imposed by egg competition.

Canal + Spain & Live Football Broadcasts: A Whole Different Game

NARCIS (Netherlands)

Rodríguez Ortega, Vicente; Romero Santos, Rubén

2017-01-01

textabstractIn 1988 the Law for Private Television Broadcasting was approved by Spanish parliament. Three licenses were initially awarded. Soon thereafter, in 1990, three channels started broadcasting: Antena 3, Berlusconi-related Tele 5 and, against all odds, a pay channel, Canal + Spain. This

Airborne evaluation/verification of antenna patterns of broadcasting stations

NARCIS (Netherlands)

Witvliet, Ben

2006-01-01

This paper describes a method for airborne evaluation and verification of the antenna patterns of broadcasting stations. Although it is intended for governmental institutions and broadcasters it may be also of interest to anyone who wants to evaluate large radiating structures. An airborne

76 FR 5120 - Television Broadcasting Services; El Paso, TX

Science.gov (United States)

2011-01-28

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 11-74; MB Docket No. 11-4; RM-11616] Television Broadcasting Services; El Paso, TX AGENCY: Federal Communications Commission. ACTION: Proposed... 73 Television, Television broadcasting. For the reasons discussed in the preamble, the Federal...

Restricted broadcast process theory

NARCIS (Netherlands)

F. Ghassemi; W.J. Fokkink (Wan); A. Movaghar; A. Cerone; S. Gruner

2008-01-01

htmlabstractWe present a process algebra for modeling and reasoning about Mobile Ad hoc Networks (MANETs) and their protocols. In our algebra we model the essential modeling concepts of ad hoc networks, i.e. local broadcast, connectivity of nodes and connectivity changes. Connectivity and

Religious Broadcasting in the Middle East : Content Analysis of ...

International Development Research Centre (IDRC) Digital Library (Canada)

Over the past decade, television broadcasting has become central in shaping public attitudes in the Middle East. Against a backdrop of authoritarian governments, political instability, war and pervasive foreign military intervention, broadcasting has emerged as a platform for expressing views and opinions that might ...

78 FR 78318 - Television Broadcasting Services; Oklahoma City, Oklahoma

Science.gov (United States)

2013-12-26

...: Proposed rule. SUMMARY: The Commission has before it a petition for rulemaking filed by Family Broadcasting Group, Inc. (``Family Broadcasting''), the licensee of station KSBI(TV), channel 51, Oklahoma City... instituted a freeze on the acceptance of full power television rulemaking petitions requesting channel...

75 FR 5015 - Television Broadcasting Services; Oklahoma City, OK

Science.gov (United States)

2010-02-01

...] Television Broadcasting Services; Oklahoma City, OK AGENCY: Federal Communications Commission. ACTION... procedures for comments, see 47 CFR 1.415 and 1.420. List of Subjects in 47 CFR Part 73 Television, Television broadcasting. For the reasons discussed in the preamble, the Federal Communications Commission...

Public broadcasting, media engagement, and 2-1-1: using mass communication to increase the use of social services.

Science.gov (United States)

Shah, Dhavan V; McLeod, Douglas M; Rojas, Hernando; Sayre, Benjamin G; Vraga, Emily; Scholl, Rosanne M; Jones, Clive; Shaw, Amy

2012-12-01

The 2008-2009 subprime mortgage crisis was catastrophic, not only for the global economy but for families across the social spectrum. The resultant economic upheaval threatened the livelihoods, well-being, and health of many citizens, who were often unsure where to turn for help. At this critical juncture, public broadcasting stations worked to connect viewers to support resources through 2-1-1. This study was designed to evaluate the ability of public broadcasting to increase the use of information and referral services. Autoregressive integrated moving average (ARIMA) modeling and regression analysis document the relationship between public broadcasting initiatives and 2-1-1 call volume in 35 highly affected U.S. markets. Time-series data from St. Louis MO were collected and analyzed in 2008. Station-level data from across the nation were collected during 2009-2010 and analyzed in 2010. ARIMA results show a distinct linkage between the timing and duration of Channel 9 in St. Louis MO (KETC) programming and a subsequent (approximately 400%) increase in 2-1-1 calls regarding financial services and assistance. Regression path analysis not only found evidence of this same effect nationally but also showed that differences in the broadcaster's orientation and approach mediated effects. Specifically, stations' orientations toward engagement were mediated through strong outreach strategies to increase 2-1-1 use. This study documents the ability of public broadcasting to help citizens in need connect with social resources through 2-1-1 services. By focusing attention on the mortgage crisis and its attendant consequences, and by publicizing 2-1-1 services as a gateway to supportive resources, public broadcasters fostered linkages between those in need and social resources. Moreover, the level of a station's commitment to engaging citizens had a strong bearing on the success of its programming initiatives and community partnerships with organizations such as 2

Effect Through Broadcasting System Access Point For Video Transmission

Directory of Open Access Journals (Sweden)

Leni Marlina

2015-08-01

Full Text Available Most universities are already implementing wired and wireless network that is used to access integrated information systems and the Internet. At present it is important to do research on the influence of the broadcasting system through the access point for video transmitter learning in the university area. At every university computer network through the access point must also use the cable in its implementation. These networks require cables that will connect and transmit data from one computer to another computer. While wireless networks of computers connected through radio waves. This research will be a test or assessment of how the influence of the network using the WLAN access point for video broadcasting means learning from the server to the client. Instructional video broadcasting from the server to the client via the access point will be used for video broadcasting means of learning. This study aims to understand how to build a wireless network by using an access point. It also builds a computer server as instructional videos supporting software that can be used for video server that will be emitted by broadcasting via the access point and establish a system of transmitting video from the server to the client via the access point.

GPS Ephemeris Message Broadcast Simulation

National Research Council Canada - National Science Library

Browne, Nathan J; Light, James J

2005-01-01

The warfighter constantly needs increased accuracy from GPS and a means to increasing this accuracy to the decimeter level is a broadcast ephemeris message containing GPS satellite orbit and clock corrections...

Energy-Efficient Broadcasting Scheme for Smart Industrial Wireless Sensor Networks

Directory of Open Access Journals (Sweden)

Zhuangbin Chen

2017-01-01

Full Text Available In smart Industrial Wireless Sensor Networks (IWSNs, sensor nodes usually adopt a programmable technology. These smart devices can obtain new or special functions by reprogramming: they upgrade their soft systems through receiving new version of program codes. If sensor nodes need to be upgraded, the sink node will propagate program code packets to them through “one-to-many” broadcasting, and therefore new capabilities can be obtained, forming the so-called Software Defined Network (SDN. However, due to the high volume of code packet, the constraint energy of sensor node, and the unreliable link quality of wireless network, rapidly broadcasting the code packets to all nodes in network can be a challenge issue. In this paper, a novel Energy-efficient Broadcast scheme with adjustable broadcasting radius is proposed aiming to improve the performance of network upgrade. In our scheme, the nonhotspots sensor nodes take full advantage of their residual energy caused in data collection period to improve the packet reception probability and reduce the broadcasting delay of code packet transmission by enlarging the broadcasting radius, that is, the transmitting power. The theoretical analyses and experimental results show that, compared with previous work, our approach can averagely reduce the Network Upgrade Delay (NUD by 14.8%–45.2% and simultaneously increase the reliability without harming the lifetime of network.

Virtue Broadcasting - directorate change

CERN Multimedia

2003-01-01

The Board of Virtue Broadcasting Plc ("Virtue") have announced the appointment of Mr. Klaus Ackerstaff as the CEO of the main Board. He began his professional career at CERN, where he was responsible for the IT infrastructure of the OPAL (particle physics) project (1/2 page).

THE ROLE OF BROADCASTING AGENCY TO BUILD THE LEGAL COMPLIANCE OF SOCIETY

Directory of Open Access Journals (Sweden)

Lilik Rukitasari

2016-06-01

Full Text Available Abstract Broadcasting has become part of peoples’ lives needs for information, entertainment and education. Broadcasting agency as mass communication media play a role to shape the behavior of political, social, and economic in every society, in order to establish the public legal compliance through broadcasting activities that are counseling and law clarification, it takes effective communication media so that the target is expected to be achieved through increased the quality broadcast programs and attractive containing understanding and knowledge about the law will be able to increase publics’ consciousness and legal compliance. This study using sociological-juridical approach by analyzing the empirical data in order to understand the social and legal responsibilities and functions of broadcasting as a mass communication media is effective in disseminating the law and the formation of values, the result of study drawn through the broadcast media were able to create a culture norms, it means the function of media is not only as a transmitter of information to disseminate the law to the public but also it can have the effect of influencing and encouraging the change of behavior towards the law-abiding. Keywords: Broadcasting Agency, Law Compliance, Society

Some remarks on exact methods for WL and 222Rn-daughter determination

International Nuclear Information System (INIS)

Groer, P.G.

1977-01-01

For an exact determination of the three 222 Rn-daughter concentrations (RaA, B and C) which properly weighted yield the Working Level, three equations relating observed counts (α or β) to these unknown concentrations have to be solved. The half-lives in the 222 Rn decay series, the type of decay and the counting errors, limit the suitable set of equations. Some aspects of two such exact methods are discussed

Satellite broadcasting - The European experience and perspective

Science.gov (United States)

Watson, Alan

1991-11-01

The use of satellites is considered as a means for developing a European transnational broadcasting system with attention given to the control of technology. A tension is described between maintaining technology as the property of one nation when the DBSs are developed for multinational program broadcasting. The simultaneous development of satellite systems is theorized to lead eventually to a single merged program for a particular nation, and the effect is considered of the regulation of cross-holding and cross-selling systems by investors.

Exact Travelling Solutions of Discrete sine-Gordon Equation via Extended Tanh-Function Approach

International Nuclear Information System (INIS)

Dai Chaoqing; Zhang Jiefang

2006-01-01

In this paper, we generalize the extended tanh-function approach, which was used to find new exact travelling wave solutions of nonlinear partial differential equations or coupled nonlinear partial differential equations, to nonlinear differential-difference equations. As illustration, two series of exact travelling wave solutions of the discrete sine-Gordon equation are obtained by means of the extended tanh-function approach.

Retrieving Radio News Broadcasts in Danish: Accuracy and Categorization of Unrecognized Words

DEFF Research Database (Denmark)

Hertzum, Morten; Lund, Haakon; Troelsgaard, Rasmus

2016-01-01

Digital archives of radio news broadcasts can possibly be made searchable by combining speech recognition with information retrieval. We explore this possibility for the retrieval of news broadcasts in Danish. An average of 84% of the words in the broadcasts was recognized. Most of the unrecogniz...

Loops of Spoken Language i Danish Broadcasting Corporation News

DEFF Research Database (Denmark)

le Fevre Jakobsen, Bjarne

2012-01-01

The tempo of Danish television news broadcasts has changed markedly over the past 40 years, while the language has essentially always been conservative, and remains so today. The development in the tempo of the broadcasts has gone through a number of phases from a newsreader in a rigid structure...

Exact deconstruction of the 6D (2,0) theory

Energy Technology Data Exchange (ETDEWEB)

Hayling, J.; Papageorgakis, C. [Queen Mary Univ. of London (United Kingdom). CRST and School of Physics and Astronomy; Pomoni, E. [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Theory Group; Rodriguez-Gomez, D. [Oviedo Univ. (Spain). Dept. of Physics

2017-06-15

The dimensional-deconstruction prescription of Arkani-Hamed, Cohen, Kaplan, Karch and Motl provides a mechanism for recovering the A-type (2,0) theories on T{sup 2}, starting from a four-dimensional N=2 circular-quiver theory. We put this conjecture to the test using two exact-counting arguments: In the decompactification limit, we compare the Higgs-branch Hilbert series of the 4D N=2 quiver to the ''half-BPS'' limit of the (2,0) superconformal index. We also compare the full partition function for the 4D quiver on S{sup 4} to the (2,0) partition function on S{sup 4} x T{sup 2}. In both cases we find exact agreement. The partition function calculation sets up a dictionary between exact results in 4D and 6D.

From Broadcast to Podcast

DEFF Research Database (Denmark)

Fibiger, Bo

2007-01-01

This paper will present the development from broadcasted educational television up to the actual use of streaming video and mobile units in eLearning. The paper will discuss the following topics: what can we learn from history? – and what are the new challenges and possibilities in mobile...

Seamless Mobile Multimedia Broadcasting Using Adaptive Error Recovery

Directory of Open Access Journals (Sweden)

Carlos M. Lentisco

2017-01-01

Full Text Available Multimedia services over mobile networks present several challenges, such as ensuring a reliable delivery of multimedia content, avoiding undesired service disruptions, or reducing service latency. HTTP adaptive streaming addresses these problems for multimedia unicast services, but it is not efficient from the point of view of radio resource consumption. In Long-Term Evolution (LTE networks, multimedia broadcast services are provided over a common radio channel using a combination of forward error correction and unicast error recovery techniques at the application level. This paper discusses how to avoid service disruptions and reduce service latency for LTE multimedia broadcast services by adding dynamic adaptation capabilities to the unicast error recovery process. The proposed solution provides a seamless mobile multimedia broadcasting without compromising the quality of the service perceived by the users.

The exact solution of self-consistent equations in the scanning near-field optic microscopy problem

DEFF Research Database (Denmark)

Lozovski, Valeri; Bozhevolnyi, Sergey I.

1999-01-01

The macroscopic approach that allows one to obtain an exact solution of the self-consistent equation of the Lippmann-Schwinger type is developed. The main idea of our method consist in usage of diagram technque for exact summation of the infinite series corresponding to the iteration procedure fo...

47 CFR 73.1210 - TV/FM dual-language broadcasting in Puerto Rico.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 4 2010-10-01 2010-10-01 false TV/FM dual-language broadcasting in Puerto Rico...-language broadcasting in Puerto Rico. (a) For the purpose of this section, dual-language broadcasting shall... a different language. (b) Television and Class A television licensees in Puerto Rico may enter into...

Exactly and quasi-exactly solvable 'discrete' quantum mechanics.

Science.gov (United States)

Sasaki, Ryu

2011-03-28

A brief introduction to discrete quantum mechanics is given together with the main results on various exactly solvable systems. Namely, the intertwining relations, shape invariance, Heisenberg operator solutions, annihilation/creation operators and dynamical symmetry algebras, including the q-oscillator algebra and the Askey-Wilson algebra. A simple recipe to construct exactly and quasi-exactly solvable (QES) Hamiltonians in one-dimensional 'discrete' quantum mechanics is presented. It reproduces all the known Hamiltonians whose eigenfunctions consist of the Askey scheme of hypergeometric orthogonal polynomials of a continuous or a discrete variable. Several new exactly and QES Hamiltonians are constructed. The sinusoidal coordinate plays an essential role.

47 CFR 74.1204 - Protection of FM broadcast, FM Translator and LP100 stations.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 4 2010-10-01 2010-10-01 false Protection of FM broadcast, FM Translator and... SERVICES FM Broadcast Translator Stations and FM Broadcast Booster Stations § 74.1204 Protection of FM broadcast, FM Translator and LP100 stations. (a) An application for an FM translator station will not be...

CATV and the Broadcasters.

Science.gov (United States)

Flanagan, Bill

Competition between cable television systems (CATV) and regular broadcast stations concerns pay-TV and distant signal importation. The pay-TV that CATV provides competes with the networks by "siphoning" away sports and feature films, while the distant signals that CATV imports to a local market "fragment" the local audience and…

47 CFR 73.4082 - Comparative broadcast hearings-specialized programming formats.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 4 2010-10-01 2010-10-01 false Comparative broadcast hearings-specialized programming formats. 73.4082 Section 73.4082 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED... Comparative broadcast hearings—specialized programming formats. (a) See Memorandum Opinion and Order, FCC 80...

Resource Allocation Management for Broadcast/Multicast Services

OpenAIRE

Fuente Iglesias, Alejandro de la; Pérez Leal, Raquel; García-Armada, Ana

2015-01-01

Ponencia presentada en: XXX Simposium Nacional de la Unión Científica Internacional de Radio, los dias 2 y 4 septiembre 2015, en Pamplona (españa). Video services are expected to become more than 70% of the mobile traffic in 2020. Broadcast and multicast service is the most efficient mechanism to deliver the same content to many users. Not only focusing on venue casting, but also distributing many other media such as software updates and breaking news, 5G broadcasting is a key driver to a...

Unequal Error Protected JPEG 2000 Broadcast Scheme with Progressive Fountain Codes

OpenAIRE

Chen, Zhao; Xu, Mai; Yin, Luiguo; Lu, Jianhua

2012-01-01

This paper proposes a novel scheme, based on progressive fountain codes, for broadcasting JPEG 2000 multimedia. In such a broadcast scheme, progressive resolution levels of images/video have been unequally protected when transmitted using the proposed progressive fountain codes. With progressive fountain codes applied in the broadcast scheme, the resolutions of images (JPEG 2000) or videos (MJPEG 2000) received by different users can be automatically adaptive to their channel qualities, i.e. ...

An Adaption Broadcast Radius-Based Code Dissemination Scheme for Low Energy Wireless Sensor Networks.

Science.gov (United States)

Yu, Shidi; Liu, Xiao; Liu, Anfeng; Xiong, Naixue; Cai, Zhiping; Wang, Tian

2018-05-10

Due to the Software Defined Network (SDN) technology, Wireless Sensor Networks (WSNs) are getting wider application prospects for sensor nodes that can get new functions after updating program codes. The issue of disseminating program codes to every node in the network with minimum delay and energy consumption have been formulated and investigated in the literature. The minimum-transmission broadcast (MTB) problem, which aims to reduce broadcast redundancy, has been well studied in WSNs where the broadcast radius is assumed to be fixed in the whole network. In this paper, an Adaption Broadcast Radius-based Code Dissemination (ABRCD) scheme is proposed to reduce delay and improve energy efficiency in duty cycle-based WSNs. In the ABCRD scheme, a larger broadcast radius is set in areas with more energy left, generating more optimized performance than previous schemes. Thus: (1) with a larger broadcast radius, program codes can reach the edge of network from the source in fewer hops, decreasing the number of broadcasts and at the same time, delay. (2) As the ABRCD scheme adopts a larger broadcast radius for some nodes, program codes can be transmitted to more nodes in one broadcast transmission, diminishing the number of broadcasts. (3) The larger radius in the ABRCD scheme causes more energy consumption of some transmitting nodes, but radius enlarging is only conducted in areas with an energy surplus, and energy consumption in the hot-spots can be reduced instead due to some nodes transmitting data directly to sink without forwarding by nodes in the original hot-spot, thus energy consumption can almost reach a balance and network lifetime can be prolonged. The proposed ABRCD scheme first assigns a broadcast radius, which doesn’t affect the network lifetime, to nodes having different distance to the code source, then provides an algorithm to construct a broadcast backbone. In the end, a comprehensive performance analysis and simulation result shows that the proposed

An Adaption Broadcast Radius-Based Code Dissemination Scheme for Low Energy Wireless Sensor Networks

Directory of Open Access Journals (Sweden)

Shidi Yu

2018-05-01

Full Text Available Due to the Software Defined Network (SDN technology, Wireless Sensor Networks (WSNs are getting wider application prospects for sensor nodes that can get new functions after updating program codes. The issue of disseminating program codes to every node in the network with minimum delay and energy consumption have been formulated and investigated in the literature. The minimum-transmission broadcast (MTB problem, which aims to reduce broadcast redundancy, has been well studied in WSNs where the broadcast radius is assumed to be fixed in the whole network. In this paper, an Adaption Broadcast Radius-based Code Dissemination (ABRCD scheme is proposed to reduce delay and improve energy efficiency in duty cycle-based WSNs. In the ABCRD scheme, a larger broadcast radius is set in areas with more energy left, generating more optimized performance than previous schemes. Thus: (1 with a larger broadcast radius, program codes can reach the edge of network from the source in fewer hops, decreasing the number of broadcasts and at the same time, delay. (2 As the ABRCD scheme adopts a larger broadcast radius for some nodes, program codes can be transmitted to more nodes in one broadcast transmission, diminishing the number of broadcasts. (3 The larger radius in the ABRCD scheme causes more energy consumption of some transmitting nodes, but radius enlarging is only conducted in areas with an energy surplus, and energy consumption in the hot-spots can be reduced instead due to some nodes transmitting data directly to sink without forwarding by nodes in the original hot-spot, thus energy consumption can almost reach a balance and network lifetime can be prolonged. The proposed ABRCD scheme first assigns a broadcast radius, which doesn’t affect the network lifetime, to nodes having different distance to the code source, then provides an algorithm to construct a broadcast backbone. In the end, a comprehensive performance analysis and simulation result shows that

Buryat Ethnic Mentality and National Broadcasting

Directory of Open Access Journals (Sweden)

Dagbaev E.D.

2016-01-01

Full Text Available The article focuses on ways the national (in a regional aspect broadcasting impacts ethnic mind formation and its further development, the latter issues being under a main focus of Buryat State University scholars as well. They set an objective to investigate the issue from different angles, for this reason gathering within scientific projects into scholars’groups took place. In this case the group of educators, philologists and sociologists have focused on media which construct ethnic mind via interiorizing and cultivating ethnic-related ideas and images for five years. Providing a general outlook of the world, National Broadcasting (NB is a proper institutional mechanism that helps a person identify himself / herself among different ethnic groups. Ethnic identity and self-consciousness are manifested in various social and intercultural communications. This allows a person to become aware of the peculiarities of his / her and others’ ethnic communities. The outcomes of a sociological research held by the authors verify the significance of both the posed problems and the TV role. One may find theoretical and empirical data in Zandeeva, S.K. (2012, Dagbaeva, N.Zh.(2012, Dagbaev (2014, Dashinimaeva, P.P., et al (2015. Generally, national programs do contribute to integrating people of the same ethnicity into a common community, to shaping such moral qualities as humanity, love to motherland, respect for the elders and other ethnic nationalities. All these characteristics form proper rules of living in a tolerant community. At the same time, they contribute to strengthening of the feeling of ethnic unity. Beyond any doubt, NB needs a relevant assessment and interest to promote and advance its function in a modern society. On the one hand, telecommunications markets liberalize. On the other hand, broadcasting technologies have developed to a highest extent, leading to the increase of international competition [14]. Anyway, both directions force

Counter-Based Broadcast Scheme Considering Reachability, Network Density, and Energy Efficiency for Wireless Sensor Networks.

Science.gov (United States)

Jung, Ji-Young; Seo, Dong-Yoon; Lee, Jung-Ryun

2018-01-04

A wireless sensor network (WSN) is emerging as an innovative method for gathering information that will significantly improve the reliability and efficiency of infrastructure systems. Broadcast is a common method to disseminate information in WSNs. A variety of counter-based broadcast schemes have been proposed to mitigate the broadcast-storm problems, using the count threshold value and a random access delay. However, because of the limited propagation of the broadcast-message, there exists a trade-off in a sense that redundant retransmissions of the broadcast-message become low and energy efficiency of a node is enhanced, but reachability become low. Therefore, it is necessary to study an efficient counter-based broadcast scheme that can dynamically adjust the random access delay and count threshold value to ensure high reachability, low redundant of broadcast-messages, and low energy consumption of nodes. Thus, in this paper, we first measure the additional coverage provided by a node that receives the same broadcast-message from two neighbor nodes, in order to achieve high reachability with low redundant retransmissions of broadcast-messages. Second, we propose a new counter-based broadcast scheme considering the size of the additional coverage area, distance between the node and the broadcasting node, remaining battery of the node, and variations of the node density. Finally, we evaluate performance of the proposed scheme compared with the existing counter-based broadcast schemes. Simulation results show that the proposed scheme outperforms the existing schemes in terms of saved rebroadcasts, reachability, and total energy consumption.

75 FR 76731 - Request for Comment for Report on In-State Broadcast Programming

Science.gov (United States)

2010-12-09

... Report on In-State Broadcast Programming AGENCY: Federal Communications Commission. ACTION: Notice... to submit a report on in- state broadcast programming to the appropriate Congressional committees no.... REPORT ON IN-STATE BROADCAST PROGRAMMING. Not later than 18 months after the date of the enactment of...

47 CFR 73.674 - Digital television transition notices by broadcasters.

Science.gov (United States)

2010-10-01

... broadcasters. 73.674 Section 73.674 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST... of the following per day: (i) Graphic display. A graphic super-imposed during programming content... least five (5) seconds. (ii) Animated graphic. A moving or animated graphic that ends up as a countdown...

Energy-efficient algorithm for broadcasting in ad hoc wireless sensor networks.

Science.gov (United States)

Xiong, Naixue; Huang, Xingbo; Cheng, Hongju; Wan, Zheng

2013-04-12

Broadcasting is a common and basic operation used to support various network protocols in wireless networks. To achieve energy-efficient broadcasting is especially important for ad hoc wireless sensor networks because sensors are generally powered by batteries with limited lifetimes. Energy consumption for broadcast operations can be reduced by minimizing the number of relay nodes based on the observation that data transmission processes consume more energy than data reception processes in the sensor nodes, and how to improve the network lifetime is always an interesting issue in sensor network research. The minimum-energy broadcast problem is then equivalent to the problem of finding the minimum Connected Dominating Set (CDS) for a connected graph that is proved NP-complete. In this paper, we introduce an Efficient Minimum CDS algorithm (EMCDS) with help of a proposed ordered sequence list. EMCDS does not concern itself with node energy and broadcast operations might fail if relay nodes are out of energy. Next we have proposed a Minimum Energy-consumption Broadcast Scheme (MEBS) with a modified version of EMCDS, and aimed at providing an efficient scheduling scheme with maximized network lifetime. The simulation results show that the proposed EMCDS algorithm can find smaller CDS compared with related works, and the MEBS can help to increase the network lifetime by efficiently balancing energy among nodes in the networks.

Picture-Quality Optimization for the High Definition TV Broadcast Chain

NARCIS (Netherlands)

Dimou, A.; Van der Vleuten, R.J.; De Haan, G.

2007-01-01

The High Definition scene is constantly changing. The arrival of Full HD flat panel displays, the constant improvement of the AVC encoder, and the trend towards 1920x1080 progressive broadcasting have changed the balances of the High Definition broadcasting chain. It is, therefore, required to

On the Performance of Counter-Based Broadcast Scheme for Mobile ...

African Journals Online (AJOL)

Despite its simplicity, it can result in high redundant retransmission, contention and collision, a phenomenon collectively referred to as the broadcast storm problem. Counter-based broadcast scheme has been proposed to mitigate this inherent problem and it relies on counter threshold value for rebroadcast decision. Thus ...

An interference cancellation strategy for broadcast in hierarchical cell structure

KAUST Repository

Yang, Yuli; Aï ssa, Sonia; Eltawil, Ahmed M.; Salama, Khaled N.

2014-01-01

In this paper, a hierarchical cell structure is considered, where public safety broadcasting is fulfilled in a femtocell located within a macrocell. In the femtocell, also known as local cell, an access point broadcasts to each local node (LN) over an orthogonal frequency sub-band independently. Since the local cell shares the spectrum licensed to the macrocell, a given LN is interfered by transmissions of the macrocell user (MU) in the same sub-band. To improve the broadcast performance in the local cell, a novel scheme is proposed to mitigate the interference from the MU to the LN while achieving diversity gain. For the sake of performance evaluation, ergodic capacity of the proposed scheme is quantified and a corresponding closed-form expression is obtained. By comparing with the traditional scheme that suffers from the MU's interference, numerical results substantiate the advantage of the proposed scheme and provide a useful tool for the broadcast design in hierarchical cell systems.

Using the interactive distance learning broadcast format for international audiences

International Nuclear Information System (INIS)

Callan, C.; Hylko, J.M.

1997-01-01

Since 1989, the National Environmental Technology Network (NETN) has been broadcasting interactive presentations on topics of national and international concern. Each interactive presentation covers such topics as decommissioning, environmental risk management, radioactive waste management, waste minimization, and total quality management. Course materials are provided to the attendees which feature case studies, legal and regulatory issues, and the application of existing and new technologies. The interactive presentations are broadcast by satellite and videotaped, allowing employees to participate who do not have convenient access to traditional classroom training resources. Over 8,000 professionals and students in the United States and several foreign countries have participated in the distance learning broadcast format, thus providing a proven and cost-effective method for managing educational and facility resources effectively. A case study is presented depicting why training, if neglected, can result in costly errors, and how the distance learning broadcast format can be expanded to assist regulatory officials, and even the local populace, in making cost-effective decisions. (author)

An interference cancellation strategy for broadcast in hierarchical cell structure

KAUST Repository

Yang, Yuli

2014-12-01

In this paper, a hierarchical cell structure is considered, where public safety broadcasting is fulfilled in a femtocell located within a macrocell. In the femtocell, also known as local cell, an access point broadcasts to each local node (LN) over an orthogonal frequency sub-band independently. Since the local cell shares the spectrum licensed to the macrocell, a given LN is interfered by transmissions of the macrocell user (MU) in the same sub-band. To improve the broadcast performance in the local cell, a novel scheme is proposed to mitigate the interference from the MU to the LN while achieving diversity gain. For the sake of performance evaluation, ergodic capacity of the proposed scheme is quantified and a corresponding closed-form expression is obtained. By comparing with the traditional scheme that suffers from the MU\\'s interference, numerical results substantiate the advantage of the proposed scheme and provide a useful tool for the broadcast design in hierarchical cell systems.

Direct broadcast satellite-radio market, legal, regulatory, and business considerations

Science.gov (United States)

Sood, Des R.

1991-01-01

A Direct Broadcast Satellite-Radio (DBS-R) System offers the prospect of delivering high quality audio broadcasts to large audiences at costs lower than or comparable to those incurred using the current means of broadcasting. The maturation of mobile communications technologies, and advances in microelectronics and digital signal processing now make it possible to bring this technology to the marketplace. Heightened consumer interest in improved audio quality coupled with the technological and economic feasibility of meeting this demand via DBS-R make it opportune to start planning for implementation of DBS-R Systems. NASA-Lewis and the Voice of America as part of their on-going efforts to improve the quality of international audio broadcasts, have undertaken a number of tasks to more clearly define the technical, marketing, organizational, legal, and regulatory issues underlying implementation of DBS-R Systems. The results and an assessment is presented of the business considerations underlying the construction, launch, and operation of DBS-R Systems.

Direct broadcast satellite-radio market, legal, regulatory, and business considerations

Science.gov (United States)

Sood, Des R.

1991-03-01

A Direct Broadcast Satellite-Radio (DBS-R) System offers the prospect of delivering high quality audio broadcasts to large audiences at costs lower than or comparable to those incurred using the current means of broadcasting. The maturation of mobile communications technologies, and advances in microelectronics and digital signal processing now make it possible to bring this technology to the marketplace. Heightened consumer interest in improved audio quality coupled with the technological and economic feasibility of meeting this demand via DBS-R make it opportune to start planning for implementation of DBS-R Systems. NASA-Lewis and the Voice of America as part of their on-going efforts to improve the quality of international audio broadcasts, have undertaken a number of tasks to more clearly define the technical, marketing, organizational, legal, and regulatory issues underlying implementation of DBS-R Systems. The results and an assessment is presented of the business considerations underlying the construction, launch, and operation of DBS-R Systems.

Watershed Education for Broadcast Meteorologists

Science.gov (United States)

Lamos, J. P.; Sliter, D.; Espinoza, S.; Spangler, T. C.

2006-12-01

The National Environmental Education and Training Organization (NEETF) published a report in 2005 that summarized the findings of ten years of NEETF and Roper Research. The report stated, "Our years of data from Roper surveys show a persistent pattern of environmental ignorance even among the most educated and influential members of society." Market research has also shown that 80% of television viewers list the weather as the primary reason for watching the local news. Broadcast meteorologists, with a broader understanding of environmental and related sciences have an opportunity to use their weathercasts to inform the public about the environment and the factors that influence environmental health. As "station scientists," broadcast meteorologists can use the weather, and people's connection to it, to broaden their understanding of the environment they live in. Weather and watershed conditions associated with flooding and drought have major human and environmental impacts. Increasing the awareness of the general public about basic aspects of the hydrologic landscape can be an important part of mitigating the adverse effects of too much or too little precipitation, and of protecting the environment as well. The concept of a watershed as a person's natural neighborhood is a very important one for understanding hydrologic and environmental issues. Everyone lives in a watershed, and the health of a watershed is the result of the interplay between weather and human activity. This paper describes an online course to give broadcast meteorologists a basic understanding of watersheds and how watersheds are impacted by weather. It discusses how to convey watershed science to a media- savvy audience as well as how to model the communication of watershed and hydrologic concepts to the public. The course uses a narrative, story-like style to present its content. It is organized into six short units of instruction, each approximately 20 minutes in duration. Each unit is

An Efficient Live TV Scheduling System for 4G LTE Broadcast

KAUST Repository

Lau, Chun Pong; Alabbasi, AbdulRahman; Shihada, Basem

2016-01-01

Traditional live television (TV) broadcasting systems are proven to be spectrum inefficient. Therefore, researchers propose to provide TV services on fourth-generation (4G) long-term evolution (LTE) networks. However, static broadcast, a typical

The role of the public service broadcasting in the european countries

Directory of Open Access Journals (Sweden)

Budacia Elisabeta Andreea

2008-04-01

Full Text Available Broadcasting in particular has seen remarkable change from the days of single-channel public broadcasting systems. The audiovisual “explosion” is a cultural, social and economic phenomenon of global dimension. The audiovisual sector forms an essential part of Europe’s economic and cultural influence in the world. The fundamental principle of the Union’s audiovisual policy is to provide for the free circulation of reception of trans frontier broadcasts. So the European audiovisual industry is likely to become a stronger and more competitive player on the global scene. The future of public service broadcasting in Europe is increasingly challenged by unfavorable external factors, such as intensifying competition from commercial media, media concentrations, political and economic interests adversary to independent media, and by internal difficulties, such as cost ineffectiveness.

Servicing a globally broadcast interrupt signal in a multi-threaded computer

Science.gov (United States)

Attinella, John E.; Davis, Kristan D.; Musselman, Roy G.; Satterfield, David L.

2015-12-29

Methods, apparatuses, and computer program products for servicing a globally broadcast interrupt signal in a multi-threaded computer comprising a plurality of processor threads. Embodiments include an interrupt controller indicating in a plurality of local interrupt status locations that a globally broadcast interrupt signal has been received by the interrupt controller. Embodiments also include a thread determining that a local interrupt status location corresponding to the thread indicates that the globally broadcast interrupt signal has been received by the interrupt controller. Embodiments also include the thread processing one or more entries in a global interrupt status bit queue based on whether global interrupt status bits associated with the globally broadcast interrupt signal are locked. Each entry in the global interrupt status bit queue corresponds to a queued global interrupt.

Quasi-exact solvability

International Nuclear Information System (INIS)

Ushveridze, A.G.

1992-01-01

This paper reports that quasi-exactly solvable (QES) models realize principally new type of exact solvability in quantum physics. These models are distinguished by the fact that the Schrodinger equations for them can be solved exactly only for certain limited parts of the spectrum, but not for the whole spectrum. They occupy an intermediate position between the exactly the authors solvable (ES) models and all the others. The number of energy levels for which the spectral problems can be solved exactly refer below to as the order of QES model. From the mathematical point of view the existence of QES models is not surprising. Indeed, if the term exact solvability expresses the possibility of total explicit diagonalization of infinite Hamiltonian matrix, then the term quasi-exact solvability implies the situation when the Hamiltonian matrix can be reduced explicitly to the block-diagonal form with one of the appearing blocks being finite

Transmission techniques for emergent multicast and broadcast systems

CERN Document Server

da Silva, Mario Marques; Dinis, Rui; Souto, Nuno; Silva, Joao Carlos

2010-01-01

Describing efficient transmission schemes for broadband wireless systems, Transmission Techniques for Emergent Multicast and Broadcast Systems examines advances in transmission techniques and receiver designs capable of supporting the emergent wireless needs for multimedia broadcast and multicast service (MBMS) requirements. It summarizes the research and development taking place in wireless communications for multimedia MBMS and addresses the means to improved spectral efficiency to allow for increased user bit rate, as well as increased capacity of the digital cellular radio network.The text

Broadcast Abstraction in a Stochastic Calculus for Mobile Networks

DEFF Research Database (Denmark)

Song, Lei; Godskesen, Jens Christian

2012-01-01

topology constraint. We allow continuous time stochastic behavior of processes running at network nodes, e.g. in order to be able to model randomized protocols. The introduction of group broadcast and an operator to help avoid flooding allows us to define a novel notion of broadcast abstraction. Finally......, we define a weak bisimulation congruence and apply our theory on an example of a leader election protocol....

78 FR 18527 - Implementation of Competitive Bidding for Commercial Broadcast and Instructional Television Fixed...

Science.gov (United States)

2013-03-27

... Broadcast and Instructional Television Fixed Service Licenses AGENCY: Federal Communications Commission... Implementation of Competitive Bidding for Commercial Broadcast and Instructional Television Fixed Service... for Commercial Broadcast and Instructional Television Fixed Service Licenses, MM Docket No. 97- 234 et...

High data-rate video broadcasting over 3G wireless systems

NARCIS (Netherlands)

Atici, C.; Sunay, M.O.

2007-01-01

In cellular environments, video broadcasting is a challenging problem in which the number of users receiving the service and the average successfully decoded video data-rate have to be intelligently optimized. When video is broadcasted using the 3G packet data standard, 1xEV-DO, the code space may

ExactPack Documentation

Energy Technology Data Exchange (ETDEWEB)

Singleton, Robert Jr. [Los Alamos National Laboratory; Israel, Daniel M. [Los Alamos National Laboratory; Doebling, Scott William [Los Alamos National Laboratory; Woods, Charles Nathan [Los Alamos National Laboratory; Kaul, Ann [Los Alamos National Laboratory; Walter, John William Jr [Los Alamos National Laboratory; Rogers, Michael Lloyd [Los Alamos National Laboratory

2016-05-09

For code verification, one compares the code output against known exact solutions. There are many standard test problems used in this capacity, such as the Noh and Sedov problems. ExactPack is a utility that integrates many of these exact solution codes into a common API (application program interface), and can be used as a stand-alone code or as a python package. ExactPack consists of python driver scripts that access a library of exact solutions written in Fortran or Python. The spatial profiles of the relevant physical quantities, such as the density, fluid velocity, sound speed, or internal energy, are returned at a time specified by the user. The solution profiles can be viewed and examined by a command line interface or a graphical user interface, and a number of analysis tools and unit tests are also provided. We have documented the physics of each problem in the solution library, and provided complete documentation on how to extend the library to include additional exact solutions. ExactPack’s code architecture makes it easy to extend the solution-code library to include additional exact solutions in a robust, reliable, and maintainable manner.

Exact scattering and diffraction of antiplane shear waves by a vertical edge crack

Science.gov (United States)

Tsaur, Deng-How

2010-06-01

Scattering and diffraction problems of a vertical edge crack connected to the surface of a half space are considered for antiplane shear wave incidence. The method of separation of variables is adopted to derive an exact series solution. The total displacement field is expressed as infinite series containing products of radial and angular Mathieu functions with unknown coefficients. An exact analytical determination of unknown coefficients is carried out by insuring the vanishing of normal stresses on crack faces. Frequency-domain results are given for extremely near, near, and far fields, whereas time-domain ones are for horizontal surface and subsurface motions. Comparisons with published data for the dynamic stress intensity factor show good agreement. The exact analytical nature of proposed solutions can be applied very conveniently and rapidly to high-frequency steady-state cases, enhancing the computation efficiency in transient cases when performing the fast Fourier transform. A sampled set of time slices for underground wave propagation benefits the interpretation of scattering and diffraction phenomena induced by a vertical edge crack.

The large satellite program of ESA and its relevance for broadcast missions

Science.gov (United States)

Fromm, H.-H.; Herdan, B. L.

1981-03-01

In an investigation of the market prospects and payload requirements of future communications satellites, it was concluded that during the next 15 years many space missions will demand larger satellite platforms than those currently available. These platforms will be needed in connection with direct-broadcasting satellites, satellites required to enhance capacities in the case of traditional services, and satellites employed to introduce new types of satellite-based communications operating with small terminals. Most of the larger satellites would require the Ariane III capability, corresponding to about 1400 kg satellite mass in geostationary orbit. Attention is given to L-SAT platform capabilities and broadcast payload requirements, taking into account a European direct-broadcast satellite and Canadian direct-broadcast missions.

Composite Broadcasting and Ranging via a Satellite Dual-Frequency MPPSK System

Directory of Open Access Journals (Sweden)

Yu Yao

2013-01-01

Full Text Available Since digital video broadcasting via satellite (DVB-S signals are “inefficient”, regarding the amount of information they convey on the bandwidth they occupy, a joint broadcasting and ranging system would constitute a unique platform for future digital video broadcasting satellite services effecting the essential tasks of satellite navigation system and direct to home (DTH services, in terms of both spectrum efficiency and cost effectiveness. In this paper, the design of dual frequency M-ary position phase shift keying (MPPSK system which is suitable for, respectively, performing both data transmission and range measurement is proposed. The approach is based on MPPSK modulation waveforms utilized in digital video broadcasting. In particular, requirements that allow for employing such signals for range measurements with high accuracy and high range are investigated. Also, the relationship between the frequency difference of dual frequency MPPSK system and range accuracy is discussed. Moreover, the selection of MPPSK modulation parameter for data rate and ranging is considered. In addition to theoretical considerations, the paper presents system simulations and measurement results of new systems, demonstrating the high spectral utilization of integrated broadcasting and ranging applications.

All-optical broadcast and multicast technologies based on PPLN waveguide

DEFF Research Database (Denmark)

Ye, Lingyun; Wang, Ju; Hu, Hao

2013-01-01

All-optical 1×4 broadcast and 1×3 multicast experiments of a 40-Gb/s return-to-zero on-off keying (RZ-OOK) signal based on a periodically poled lithium niobate (PPLN) waveguide are demonstrated in this letter. Clear opened eye diagrams and error-free performance are achieved for the broadcast...

75 FR 8070 - Closed Auction of Broadcast Construction Permits Scheduled for July 20, 2010; Auction 88...

Science.gov (United States)

2010-02-23

... to support their claims with valuation analyses and suggested amounts or formulas for reserve prices... seek comment on factors that could reasonably have an impact on valuation of the broadcast spectrum..., Inc. Arkansas Valley Broadcasting, LLC BBK Broadcasting Big Sky Company Birach Broadcasting...

Broadcast sound technology

CERN Document Server

Talbot-Smith, Michael

1990-01-01

Broadcast Sound Technology provides an explanation of the underlying principles of modern audio technology. Organized into 21 chapters, the book first describes the basic sound; behavior of sound waves; aspects of hearing, harming, and charming the ear; room acoustics; reverberation; microphones; phantom power; loudspeakers; basic stereo; and monitoring of audio signal. Subsequent chapters explore the processing of audio signal, sockets, sound desks, and digital audio. Analogue and digital tape recording and reproduction, as well as noise reduction, are also explained.

Comparison of effectiveness of advertising expenses during broadcasts of main hockey events

OpenAIRE

Kozlová, Natálie

2017-01-01

Title: Comparison of effectiveness of advertising expenses during broadcasts of main hockey events Objectives: The main goal of this dissertation is to compare the amount of money invested into the commercial advertisement during sport broadcasts at the ČT sport channel with viewer ratings. The used metric is a coefficient computed as a ratio between the viewer rating of the particular broadcast and the corresponding advertisement cost, normalized using Cost per Thousand method. Another goal ...

Live broadcast from the Globe

CERN Multimedia

La tête au carréTuesday, 17 June 2008 between 2.00 and 3.00 p.m.“La tête au carré”, a France Inter radio programme devoted to science, will set up its sound booth at CERN for a special broadcast on the LHC.The journalist Mathieu Vidard will interview the following guests: - Pierre Van Hove, an experimental physicist working on CMS. He is a CNRS research scientist from the Institut Hubert Curien in Strasbourg, France.- Abdelhak Djouadi is a theoretical physicist. He is a research director at the CNRS’s Laboratoire de physique théorique at Orsay, France and holder of the CNRS silver medal.- Magali Gruwe, one of the engineers in charge of LHC operations at CERN.» To take part in this live broadcast, which is open to the public, come to the Globe at 1:30 p.m. The number of places is limited.» No specialist knowledge required.» See the programme's homepage

Transmission Quality Measurements in DAB+ Broadcast System

Directory of Open Access Journals (Sweden)

Gilski Przemysław

2017-12-01

Full Text Available In the age of digital media, delivering broadcast content to customers at an acceptable level of quality is one of the most challenging tasks. The most important factor is the efficient use of available resources, including bandwidth. An appropriate way of managing the digital multiplex is essential for both the economic and technical issues. In this paper we describe transmission quality measurements in the DAB+ broadcast system. We provide a methodology for analysing parameters and factors related with the efficiency and reliability of a digital radio link. We describe a laboratory stand that can be used for transmission quality assessment on a regional and national level.

The Use of Computer Simulation Gaming in Teaching Broadcast Economics.

Science.gov (United States)

Mancuso, Louis C.

The purpose of this study was to develop a broadcast economic computer simulation and to ascertain how a lecture-computer simulation game compared as a teaching method with a more traditional lecture and case study instructional methods. In each of three sections of a broadcast economics course, a different teaching methodology was employed: (1)…

Time coded distribution via broadcasting stations

Science.gov (United States)

Leschiutta, S.; Pettiti, V.; Detoma, E.

1979-01-01

The distribution of standard time signals via AM and FM broadcasting stations presents the distinct advantages to offer a wide area coverage and to allow the use of inexpensive receivers, but the signals are radiated a limited number of times per day, are not usually available during the night, and no full and automatic synchronization of a remote clock is possible. As an attempt to overcome some of these problems, a time coded signal with a complete date information is diffused by the IEN via the national broadcasting networks in Italy. These signals are radiated by some 120 AM and about 3000 FM and TV transmitters around the country. In such a way, a time ordered system with an accuracy of a couple of milliseconds is easily achieved.

Direct broadcast of a sporting event as televisual cultural form

Directory of Open Access Journals (Sweden)

Jože Vogrinc

2012-07-01

Full Text Available Direct TV broadcasting of sport events is undoubtedly the focal point of interest of sport fans in sports media as well as of sponsors and investors responsible for the global mediatisation of popular sports. In this article, the centrality of direct TV broadcasts in the televisual coverage of sports, as well as in the presence of sports in new media in general is explained in the context of the impact of the mediatisation of sports upon cultural forms of TV coverage of sports. The complexity of these forms and its main features (the role of the commentator, the rules of editing, dramatisation and narrativisation in direct broadcasts are analysed.

76 FR 4078 - Television Broadcasting Services; North Pole and Plattsburgh, NY

Science.gov (United States)

2011-01-24

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 10-2443; MM Docket No. 99-238; RM-9669] Television Broadcasting Services; North Pole and Plattsburgh, NY AGENCY: Federal Communications Commission... CFR Part 73 Television, Television broadcasting. For the reasons discussed in the preamble, the...

The Accuracy and Correction of Fuel Consumption from Controller Area Network Broadcast

Energy Technology Data Exchange (ETDEWEB)

Wang, Lijuan [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Gonder, Jeffrey D [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Wood, Eric W [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Ragatz, Adam C [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

2017-10-13

Fuel consumption (FC) has always been an important factor in vehicle cost. With the advent of electronically controlled engines, the controller area network (CAN) broadcasts information about engine and vehicle performance, including fuel use. However, the accuracy of the FC estimates is uncertain. In this study, the researchers first compared CAN-broadcasted FC against physically measured fuel use for three different types of trucks, which revealed the inaccuracies of CAN-broadcast fueling estimates. To match precise gravimetric fuel-scale measurements, polynomial models were developed to correct the CAN-broadcasted FC. Lastly, the robustness testing of the correction models was performed. The training cycles in this section included a variety of drive characteristics, such as high speed, acceleration, idling, and deceleration. The mean relative differences were reduced noticeably.

Using trees to compute approximate solutions to ordinary differential equations exactly

Science.gov (United States)

Grossman, Robert

1991-01-01

Some recent work is reviewed which relates families of trees to symbolic algorithms for the exact computation of series which approximate solutions of ordinary differential equations. It turns out that the vector space whose basis is the set of finite, rooted trees carries a natural multiplication related to the composition of differential operators, making the space of trees an algebra. This algebraic structure can be exploited to yield a variety of algorithms for manipulating vector fields and the series and algebras they generate.

The broadcast of shared attention and its impact on political persuasion.

Science.gov (United States)

Shteynberg, Garriy; Bramlett, James M; Fles, Elizabeth H; Cameron, Jaclyn

2016-11-01

In democracies where multitudes yield political influence, so does broadcast media that reaches those multitudes. However, broadcast media may not be powerful simply because it reaches a certain audience, but because each of the recipients is aware of that fact. That is, watching broadcast media can evoke a state of shared attention, or the perception of simultaneous coattention with others. Whereas past research has investigated the effects of shared attention with a few socially close others (i.e., friends, acquaintances, minimal ingroup members), we examine the impact of shared attention with a multitude of unfamiliar others in the context of televised broadcasting. In this paper, we explore whether shared attention increases the psychological impact of televised political speeches, and whether fewer numbers of coattending others diminishes this effect. Five studies investigate whether the perception of simultaneous coattention, or shared attention, on a mass broadcasted political speech leads to more extreme judgments. The results indicate that the perception of synchronous coattention (as compared with coattending asynchronously and attending alone) renders persuasive speeches more persuasive, and unpersuasive speeches more unpersuasive. We also find that recall memory for the content of the speech mediates the effect of shared attention on political persuasion. The results are consistent with the notion that shared attention on mass broadcasted information results in deeper processing of the content, rendering judgments more extreme. In all, our findings imply that shared attention is a cognitive capacity that supports large-scale social coordination, where multitudes of people can cognitively prioritize simultaneously coattended information. (PsycINFO Database Record (c) 2016 APA, all rights reserved).

An Efficient Periodic Broadcasting with Small Latency and Buffer Demand for Near Video on Demand

Directory of Open Access Journals (Sweden)

Ying-Nan Chen

2012-01-01

Full Text Available Broadcasting Protocols can efficiently transmit videos that simultaneously shared by clients with partitioning the videos into segments. Many studies focus on decreasing clients' waiting time, such as the fixed-delay pagoda broadcasting (FDPB and the harmonic broadcasting schemes. However, limited-capability client devices such as PDAs and set-top boxes (STBs suffer from storing a significant fraction of each video while it is being watched. How to reduce clients' buffer demands is thus an important issue. Related works include the staircase broadcasting (SB, the reverse fast broadcasting (RFB, and the hybrid broadcasting (HyB schemes. This work improves FDPB to save client buffering space as well as waiting time. In comparison with SB, RFB, and HyB, the improved FDPB scheme can yield the smallest waiting time under the same buffer requirements.

47 CFR 73.6016 - Digital Class A TV station protection of TV broadcast stations.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 4 2010-10-01 2010-10-01 false Digital Class A TV station protection of TV... Class A TV station protection of TV broadcast stations. Digital Class A TV stations must protect authorized TV broadcast stations, applications for minor changes in authorized TV broadcast stations filed on...

Broadcast and Aggregation in BBC

DEFF Research Database (Denmark)

Hüttel, Hans; Kiilerich Pratas, Nuno

2015-01-01

In this paper we introduce a process calculus BBC that has both forms of communication. For both many-to-one and one-to-many communication, it is often a natural assumption that communication is bounded; this reflects two distinct aspects of the limitations of a medium. In the case of broadcast, ...

Secure Broadcasting with Uncertain Channel State Information

KAUST Repository

Hyadi, Amal

2016-01-06

We investigate the problem of secure broadcasting over fast fading channels with imperfect main channel state information (CSI) at the transmitter. In particular, we analyze the effect of the noisy estimation of the main CSI on the throughput of a broadcast channel where the transmission is intended for multiple legitimate receivers in the presence of an eavesdropper. Besides, we consider the realistic case where the transmitter is only aware of the statistics of the eavesdropper s CSI and not of its channel s realizations. First, we discuss the common message transmission case where the source broadcasts the same information to all the receivers, and we provide an upper and a lower bounds on the ergodic secrecy capacity. For this case, we show that the secrecy rate is limited by the legitimate receiver having, on average, the worst main channel link and we prove that a non-zero secrecy rate can still be achieved even when the CSI at the transmitter is noisy. Then, we look at the independent messages case where the transmitter broadcasts multiple messages to the receivers, and each intended user is interested in an independent message. For this case, we present an expression for the achievable secrecy sum-rate and an upper bound on the secrecy sum-capacity and we show that, in the limit of large number of legitimate receivers K, our achievable secrecy sum-rate follows the scaling law log((1-a ) log(K)), where is the estimation error variance of the main CSI. The special cases of high SNR, perfect and no-main CSI are also analyzed. Analytical derivations and numerical results are presented to illustrate the obtained expressions for the case of independent and identically distributed Rayleigh fading channels.

Secure Broadcasting with Uncertain Channel State Information

KAUST Repository

Hyadi, Amal

2017-03-13

We investigate the problem of secure broadcasting over fast fading channels with imperfect main channel state information (CSI) at the transmitter. In particular, we analyze the effect of the noisy estimation of the main CSI on the throughput of a broadcast channel where the transmission is intended for multiple legitimate receivers in the presence of an eavesdropper. Besides, we consider the realistic case where the transmitter is only aware of the statistics of the eavesdropper\\'s CSI and not of its channel\\'s realizations. First, we discuss the common message transmission case where the source broadcasts the same information to all the receivers, and we provide an upper and a lower bounds on the ergodic secrecy capacity. For this case, we show that the secrecy rate is limited by the legitimate receiver having, on average, the worst main channel link and we prove that a non-zero secrecy rate can still be achieved even when the CSI at the transmitter is noisy. Then, we look at the independent messages case where the transmitter broadcasts multiple messages to the receivers, and each intended user is interested in an independent message. For this case, we present an expression for the achievable secrecy sum-rate and an upper bound on the secrecy sum-capacity and we show that, in the limit of large number of legitimate receivers K, our achievable secrecy sum-rate follows the scaling law log((1-a ) log(K)), where is the estimation error variance of the main CSI. The special cases of high SNR, perfect and no-main CSI are also analyzed. Analytical derivations and numerical results are presented to illustrate the obtained expressions for the case of independent and identically distributed Rayleigh fading channels.

Exact solutions to the supply chain equations for arbitrary, time-dependent demands

DEFF Research Database (Denmark)

Warburton, Roger D.H.; Hodgson, J.P.E.; Nielsen, Erland Hejn

2014-01-01

, so users can determine the inventory behavior to any desired precision. To illustrate, we solve the equations for a non-linear, quadratic time-dependence in the demand. For practical use, only a few terms in the series are required, a proposition illustrated by the For All Practical Purposes (FAPP......We study the impact on inventory of an unexpected, non-linear, time-dependent demand and present the exact solutions over time to the supply chain equations without requiring any approximations. We begin by imposing a boundary condition of stability at infinity, from which we derive expressions...... for the estimated demand and the target work in progress when the demand is time-dependent. The resulting inventory equation is solved in terms of the Lambert modes with all of the demand non-linearities confined to the pre-shape function. The series solution is exact, and all terms are reasonably easy to calculate...

Cadillac Desert: Water and the Transformation of Nature. A Discussion and Viewer's Guide to the PBS Series.

Science.gov (United States)

McDowell, Ceasar L.; Reisner, Marc; Bonk, Laura; Wisehart, Bob

Cadillac Desert is a four-part Public Broadcasting Service (PBS) video series on the remaking of America's West through startling feats of engineering and the consequences that this manipulation of water and nature has wrought. This guide is meant to serve as a resource for discussing the issues raised in the series. The first part of the guide…

Productivity and its Decomposition in the Japanese Broadcasting Market

OpenAIRE

Asai, Sumiko

2005-01-01

The purpose of this paper is to calculate the total factor productivity (TFP) as well as scale economies of Japanese terrestrial broadcasters and examine the industry’s characteristics through the decomposition of TFP growth. In order to calculate TFP growth rate, a variable cost function is estimated using data on twenty-five broadcasters for the period 1997–2002, and the TFP growth rate is decomposed into three sources: output effect, capital adjustment and technical change. Calculation rev...

Health Education by Open Broadcast.

Science.gov (United States)

ICIT Report, 1976

1976-01-01

This issue focuses on uses and techniques of radio for educational purposes in developing nations. Two health education projects are described which are utilizing open broadcasting to attract a mass audience of listeners not committed to a structured radio education program. Kenya's Swahili language radio serial, "Giving Birth and Caring for your…

Hard Content, Fab Front-End : Archiving Websites of Dutch Public Broadcasters

NARCIS (Netherlands)

Baltussen, L; Blom, J; Medjoune, L; Pop, R; van Gorp, Jasmijn; Huurdeman, H; Haaijer, L

2014-01-01

Although there are a great variety of web archiving projects around the world, there are not many that focus explicitly on websites of broadcasters. The reason is that funds are often lacking to do this, and that broadcaster websites are difficult to archive, due to their dynamic and audiovisual

System optimization for peer-to-peer multi hop video broadcasting in wireless ad hoc networks

NARCIS (Netherlands)

Dedeoglu, V.; Atici, C.; Salman, F.S.; Sunay, M.O.

2008-01-01

We consider peer-to-peer video broadcasting using cooperation among peers in an ad hoc wireless network. As opposed to the traditional single hop broadcasting, multiple hops cause an increase in broadcast video quality while creating interference and increasing transmission delay. We develop

On locality of Generalized Reed-Muller codes over the broadcast erasure channel

KAUST Repository

Alloum, Amira

2016-07-28

One to Many communications are expected to be among the killer applications for the currently discussed 5G standard. The usage of coding mechanisms is impacting broadcasting standard quality, as coding is involved at several levels of the stack, and more specifically at the application layer where Rateless, LDPC, Reed Slomon codes and network coding schemes have been extensively studied, optimized and standardized in the past. Beyond reusing, extending or adapting existing application layer packet coding mechanisms based on previous schemes and designed for the foregoing LTE or other broadcasting standards; our purpose is to investigate the use of Generalized Reed Muller codes and the value of their locality property in their progressive decoding for Broadcast/Multicast communication schemes with real time video delivery. Our results are meant to bring insight into the use of locally decodable codes in Broadcasting. © 2016 IEEE.

78 FR 11222 - Solicitation for a Cooperative Agreement-Production of Five Live Satellite/Internet Broadcasts...

Science.gov (United States)

2013-02-15

... each broadcast. Significant contribution to the development of the storyboard will come from designated... the storyboard/rundown development for each broadcast, must be carefully developed. The following... clips for inclusion in the storyboard of a broadcast and to allow sufficient time for editing. These...

77 FR 71104 - Determination of Reasonable Rates and Terms for Noncommercial Broadcasting

Science.gov (United States)

2012-11-29

... full-time students 2013 2014 2015 2016 2017 Level 1 =20% Feature Music programming: Population count..., Composers and Publishers (``ASCAP''); SESAC, Inc.; Broadcast Music, Inc. (``BMI''); Educational Media Foundation (``EMF''); Music Reports, Inc. (``MRI''); National Public Radio, the Public Broadcasting Service...

Analysis and Transceiver Design for the MIMO Broadcast Channel

CERN Document Server

Hunger, Raphael

2013-01-01

This book deals with the optimization-based joint design of the transmit and receive filters in   MIMO broadcast channel in which the user terminals may be equipped with several antenna elements. Furthermore, the maximum performance of the system in the high power regime as well as the set of all feasible quality-of-service requirements is analyzed. First, a fundamental duality is derived that holds between the MIMO broadcast channel and virtual MIMO multiple access channel. This duality construct allows for the efficient solution of problems originally posed in the broadcast channel in the dual domain where a possibly hidden convexity can often be revealed. On the basis of the established duality result, the gradient-projection algorithm is introduced as a tool to solve constrained optimization problems to global optimality under certain conditions. The gradient-projection tool is then applied to solving the weighted sum rate maximization problem which is a central optimization that arises in any network u...

Introduction to “International Broadcasting and Public Diplomacy in the 21st Century”

Directory of Open Access Journals (Sweden)

Gary D. Rawnsley

2016-05-01

Full Text Available International broadcasting remains a key activity in public diplomacy. In this Introduction I discuss how international broadcasting has long been associated with the projection of foreign policy interests, from an instrument of empire building in the 1920s and 1930s, through the Cold War and beyond. In particular, the Introduction evaluates how modern Information Communications Technologies, especially the internet and social media, have transformed the way international broadcasting contributes to public diplomacy.

77 FR 22755 - Sunshine Act Meeting; Notice of Meeting of the Broadcasting Board of Governors

Science.gov (United States)

2012-04-17

... BROADCASTING BOARD OF GOVERNORS Sunshine Act Meeting; Notice of Meeting of the Broadcasting Board of Governors DATE AND TIME: Friday, April 20, 2012, 10 a.m. PLACE: Office of Cuba Broadcasting, 4201... Strategy and Budget Committee on the implementation of the BBG strategy and a report from the Governance...

EBAA: An efficient broadcast authentication scheme for ADS-B communication based on IBS-MR

Directory of Open Access Journals (Sweden)

Yang Haomiao

2014-06-01

Full Text Available Automatic dependent surveillance-broadcast (ADS-B systems can broadcast satellite-based aircraft position, identification, etc., periodically, and are now on track to replace radar to become the backbone of next-generation air traffic management (ATM systems. However, ADS-B systems suffer severe cyber-security problems due to the broadcast-type data link and the lack of designed-in security measures. Especially, since ADS-B messages are unauthenticated, it is easy to insert fake aircraft into a system via spoofing or insertion of false messages. Unfortunately, the authentication for ADS-B messages has not yet been well studied. In this paper, based on identity-based signature with message recovery (IBS-MR, an efficient broadcast authentication scheme for ADS-B messages is proposed. The security analysis demonstrates that the scheme can achieve authenticity and integrity of ADS-B broadcast messages, as well as adaptive evolution of broadcasters’ private keys. The performance evaluation shows that the scheme is computationally efficient for typical avionics devices with limited resources. Furthermore, the scheme achieves low communication overhead since broadcast messages can be recovered from signatures, and thus it is suitable for low-bandwidth ADS-B data link.

Video Broadcasting Using Queue Proportional Scheduling

Directory of Open Access Journals (Sweden)

Dimitris Toumpakaris

2007-01-01

using a Markov Chain approach leading to a method for approximating the packet delay distribution. Based on the resulting distribution, it is discussed how the video encoding rate can be chosen in order to reduce the expected distortion of streams transmitted through Broadcast Channels.

Relay-based information broadcast in complex networks

Science.gov (United States)

Fan, Zhongyan; Han, Zeyu; Tang, Wallace K. S.; Lin, Dong

2018-04-01

Information broadcast (IB) is a critical process in complex network, usually accomplished by flooding mechanism. Although flooding is simple and no prior topological information is required, it consumes a lot of transmission overhead. Another extreme is the tree-based broadcast (TB), for which information is disseminated via a spanning tree. It achieves the minimal transmission overhead but the maintenance of spanning tree for every node is an obvious obstacle for implementation. Motivated by the success of scale-free network models for real-world networks, in this paper, we investigate the issues in IB by considering an alternative solution in-between these two extremes. A novel relay-based broadcast (RB) mechanism is proposed by employing a subset of nodes as relays. Information is firstly forwarded to one of these relays and then re-disseminated to others through the spanning tree whose root is the relay. This mechanism provides a trade-off solution between flooding and TB. On one hand, it saves up a lot of transmission overhead as compared to flooding; on the other hand, it costs much less resource for maintenance than TB as only a few spanning trees are needed. Based on two major criteria, namely the transmission overhead and the convergence time, the effectiveness of RB is confirmed. The impacts of relay assignment and network structures on performance are also studied in this work.

75 FR 71148 - Solicitation for a Cooperative Agreement-Production of Seven Live Satellite/Internet Broadcasts

Science.gov (United States)

2010-11-22

... storyboard will come from designated content experts, the talent selected to appear in the broadcast, and NIC.... Therefore, the content development process, as part of the storyboard development for each broadcast, must... ensure ample time for considering the clips for inclusion in the storyboard of a broadcast and to allow...

Resource allocation for multichannel broadcasting visible light communication

Science.gov (United States)

Le, Nam-Tuan; Jang, Yeong Min

2015-11-01

Visible light communication (VLC), which offers the possibility of using light sources for both illumination and data communications simultaneously, will be a promising incorporation technique with lighting applications. However, it still remains some challenges especially coverage because of field-of-view limitation. In this paper, we focus on this issue by suggesting a resource allocation scheme for VLC broadcasting system. By using frame synchronization and a network calculus QoS approximation, as well as diversity technology, the proposed VLC architecture and QoS resource allocation for the multichannel-broadcasting MAC (medium access control) protocol can solve the coverage limitation problem and the link switching problem of exhibition service.

Flight Extraction and Phase Identification for Large Automatic Dependent Surveillance–Broadcast Datasets

NARCIS (Netherlands)

Sun, J.; Ellerbroek, J.; Hoekstra, J.M.

2017-01-01

AUTOMATIC dependent surveillance–broadcast (ADS-B) [1,2] is widely implemented in modern commercial aircraft and will become mandatory equipment in 2020. Flight state information such as position, velocity, and vertical rate are broadcast by tens of thousands of aircraft around the world constantly

Euler Polynomials, Fourier Series and Zeta Numbers

DEFF Research Database (Denmark)

Scheufens, Ernst E

2012-01-01

Fourier series for Euler polynomials is used to obtain information about values of the Riemann zeta function for integer arguments greater than one. If the argument is even we recover the well-known exact values, if the argument is odd we find integral representations and rapidly convergent series....

New Generation of Broadcasting Satellite Systems: New Markets and Business Developments

Science.gov (United States)

Perrot, Bruno; Michel, Cyril; Villaret, Stéfanie

2002-01-01

Since the deployment of the first Digital Broadcasting Satellite Systems, European satellite operators and service providers have been faced with the continuously increasing demand for Digital Broadcasting Services. Their success is built on the availability of the MPEG and DVB standards. Undoubtedly, conventional digital television broadcasting is today the `Killer' application. Various service providers already offer multimedia applications through DVB-S systems based upon the `Push' technology. Although these services do not currently represent the core business for broadcasting satellite operators, their percentage is increasing. `Push' technology services include Data Carousel, Webcasting, Turbo Internet, File casting and so on. Such technology can support the implementation of different emerging multimedia services scenarios from Newsgroups, Network collaborative learning, and tele-medicine, to others that may be invented in the near future. The penetration rate of multi-channel television reception is still increasing. Broadcasting satellites benefit both from the development of new, more segmented and sophisticated offers and from the development of Internet services. Satellite is likely to enter these new markets at different levels of the value chain: Even if the satellite has demonstrated its capacity to fully serve the television, combinations with other networks may be necessary to address the new markets: at the consumer premises, Internet-related services will require a return path; at the backbone level, satellite becomes a component of a full telecommunications solution. This article focuses on the European market and proposes:

Strategy and Space for Broadcasting Facilities

DEFF Research Database (Denmark)

Jensen, Per Anker

2006-01-01

The paper is based on results from an ongoing research project on space strategies and building values, which in-cludes a major case study of the development of facilities for the Danish Broadcasting Corporation over time. The focus is to identify, how different space strategies have been...

Quasi exactly solvable operators and abstract associative algebras

International Nuclear Information System (INIS)

Brihaye, Y.; Kosinski, P.

1998-01-01

We consider the vector spaces consisting of direct sums of polynomials of given degrees and we show how to classify the linear differential operators preserving these spaces. The families of operators so obtained are identified as the envelopping algebras of particular abstract associative algebras. Some of these operators can be transformed into quasi exactly solvable Schroedinger operators which, having a hidden algebra, can be partially solved algebraically; we exhibit however a series of Schoedinger equations which, while completely solvable algebraically, do not possess a hidden algebra

Financing Public Service Broadcasting

DEFF Research Database (Denmark)

Berg, Christian Edelvold; Lund, Anker Brink

2012-01-01

Broadcasting (PSB) financing regimes in Europe, concluding that Denmark, Finland, Iceland, Norway, and Sweden may still be considered conventional, licence fee PSB countries, but with some interesting differences in relation to competitive and market oriented alternatives of resource provision......Recently several European countries have abolished the traditional public service licence fee system, replacing it with direct public funding. But except for Iceland, the Nordic countries have not followed suit. The article discusses this development within a comparative framework of Public Service...

A dynamic analysis of consolidation in the broadcast television industry

OpenAIRE

Jessica C. Stahl

2009-01-01

This paper estimates a dynamic oligopoly model in order to separately identify the demand-side and cost-side advantages of consolidation in the broadcast television industry. I exploit an exogenous change in regulation that led to significant industry consolidation. Using revenue and ownership data for broadcast stations over the past ten years, I estimate the effect of ownership changes on revenue. I recover costs by examining patterns in ownership changes that are left unexplained by revenu...

Cell broadcast trials in The Netherlands: Using mobile phone technology for citizens' alarming

International Nuclear Information System (INIS)

Jagtman, H.M.

2010-01-01

In emergency situations authorities need to warn the public. The conventionally used method for warning citizens in The Netherlands is the use of a siren. Modern telecommunication technologies, especially the use of text-based features of mobile phones, have great potential for warning the public. In the years 2005-2007 cell broadcast was tested during several large-scale field trials with citizens in The Netherlands. One of the questions was to determine the penetration of cell broadcast for citizens' alarming. This article argues that the definition of penetration in the light of warning citizens in case of emergencies should include the citizens' responses to warning messages. In addition, the approach to determining the penetration, the data and validity issues regarding these data is discussed. The trials have shown cell broadcast has potential to become an effective citizens' alarming technology. This however requires the entire technological and organisational chain of the warning system to function correctly. Attention is required to network management, handset improvements and correct communication to the public about the conditions under which a cell broadcast message can be received. The latter includes managing realistic expectations including circumstances in which cell broadcast will not reach a citizen.

Technological, political and economic changes and their implications for the evolution of broadcasting services

DEFF Research Database (Denmark)

Tadayoni, Reza

2000-01-01

The subject of this Ph.D. thesis is changes in the market for broadcasting services as a result of technological, political, and economic drivers. Broadcasting services can be categorised as a part of the ICT-based information and knowledge intensive services that have gone through radical changes...... and demand sites, scarcity of transmission resources, and the historical aspects that make the development of the broadcasting service market different from other information and knowledge intensive services....

Broadcast Advertising of Medical Products and Services: Its Regulation by Other Nations.

Science.gov (United States)

Powell, Jon T.

1972-01-01

Restraints imposed on medical advertising through the broadcast media reflect a worldwide concern for public protection in a sensitive area, where problems of ignorance and misrepresentation are enlarged by false hope. The author examines the broadcast codes of seventeen free-world nations, with respect to their provisions on medical advertising.…

Finding Minimum-Power Broadcast Trees for Wireless Networks

Science.gov (United States)

Arabshahi, Payman; Gray, Andrew; Das, Arindam; El-Sharkawi, Mohamed; Marks, Robert, II

2004-01-01

Some algorithms have been devised for use in a method of constructing tree graphs that represent connections among the nodes of a wireless communication network. These algorithms provide for determining the viability of any given candidate connection tree and for generating an initial set of viable trees that can be used in any of a variety of search algorithms (e.g., a genetic algorithm) to find a tree that enables the network to broadcast from a source node to all other nodes while consuming the minimum amount of total power. The method yields solutions better than those of a prior algorithm known as the broadcast incremental power algorithm, albeit at a slightly greater computational cost.

An Intelligent Broadcasting Algorithm for Early Warning Message Dissemination in VANETs

Directory of Open Access Journals (Sweden)

Ihn-Han Bae

2015-01-01

Full Text Available Vehicular ad hoc network (VANET has gained much attention recently to improve road safety, reduce traffic congestion, and enable efficient traffic management because of its many important applications in transportation. In this paper, an early warning intelligence broadcasting algorithm is proposed, EW-ICAST, to disseminate a safety message for VANETs. The proposed EW-ICAST uses not only the early warning system on the basis of time to collision (TTC but also the intelligent broadcasting algorithm on the basis of fuzzy logic. Thus, the EW-ICAST resolves effectively broadcast storm problem and meets time-critical requirement. The performance of EW-ICAST is evaluated through simulation and compared with that of other alert message dissemination algorithms. From the simulation results, we know that EW-ICAST is superior to Simple, P-persistence, and EDB algorithms.

AUTOMATIC SEGMENTATION OF BROADCAST AUDIO SIGNALS USING AUTO ASSOCIATIVE NEURAL NETWORKS

Directory of Open Access Journals (Sweden)

P. Dhanalakshmi

2010-12-01

Full Text Available In this paper, we describe automatic segmentation methods for audio broadcast data. Today, digital audio applications are part of our everyday lives. Since there are more and more digital audio databases in place these days, the importance of effective management for audio databases have become prominent. Broadcast audio data is recorded from the Television which comprises of various categories of audio signals. Efficient algorithms for segmenting the audio broadcast data into predefined categories are proposed. Audio features namely Linear prediction coefficients (LPC, Linear prediction cepstral coefficients, and Mel frequency cepstral coefficients (MFCC are extracted to characterize the audio data. Auto Associative Neural Networks are used to segment the audio data into predefined categories using the extracted features. Experimental results indicate that the proposed algorithms can produce satisfactory results.

Political Broadcast Advertising and Primary Election Voting

Science.gov (United States)

Wanat, John

1974-01-01

Results of a research project which hypothisized that: Other things being equal, the heavier a candidate's usage of broadcast advertising in a primary election campaign, the greater will be his share of the votes in the election. (Author/HB)

Business of the Spirit. Ghanaian broadcast media and the commercial exploitation of Pentecostalism

NARCIS (Netherlands)

de Witte, M.

2011-01-01

This article takes a critical look at Ghana's rapidly evolving broadcasting scene and in particular at the expansion and popularity of religious broadcasting. Sketching the developments of the Ghanaian media landscape, it analyses the changing politics of representing religion in this field. The

Hierarchical Broadcasting in the Future Mobile Internet

NARCIS (Netherlands)

Hesselman, C.E.W.; Eertink, E.H.; Fernandez, Milagros; Crnkovic, Ivica; Fohler, Gerhard; Griwodz, Carsten; Plagemann, Thomas; Gruenbacher, Paul

2002-01-01

We describe an architecture for the hierarchical distribution of multimedia broadcasts in the future mobile Internet. The architecture supports network as well as application-layer mobility solutions, and uses stream control functions that are influenced by available network resources, user-defined

Educational Television Broadcasting in Germany: Prevailing Practices, Existing Challenges and Adoptable Policies

Directory of Open Access Journals (Sweden)

Pradeep Kumar Misra

2010-07-01

Full Text Available Television is widely used for educational purposes but has still not achieved its fullest potential neither in developed nor in developing countries. This worldwide under performance invite experts and academics to join hands to search causes and provide suggestions to make television a better and popular learning tool. Guided by this philosophy, the present paper analyzes the educational television broadcasting in Germany from different perspectives. The focus of analysis includes measures and practices adopted by German institutions/broadcasters to promote educational television. Besides dealing with these issues, the paper discusses existing challenges and suggests best adoptable educational television broadcasting polices from Germany to promote educational television in global perspectives.

MODUS OPERANDI OF SLOVENIAN RADIO BROADCASTERS IN TRANSMISSION OF THEIR PROGRAMME CONTENTS IN THE PERIOD FROM 2004 TO 2014

Directory of Open Access Journals (Sweden)

Robi Brglez

2016-01-01

Full Text Available Accelerated trends of digitalisation and media convergence contribute to an increasingly important role of radio in modern society. In the last decade, we have seen in the field of radio broadcasting in the Republic of Slovenia an overwhelming expansion of radio broadcasters who acquired the radio broadcasting licences. The topic of this paper are issued radio broadcasting licences and granted statuses of station of special importance within radio broadcasting activity. Based on our own research of secondary data obtained from the documentation of co-regulators in the field of broadcasting for the period from 2004 to 2014, we attempted to identify the modus operandi of radio broadcasters in their everyday practice after acquiring the licences and statuses. Findings of our research indicate that the radio broadcasters over the period considered have often changed programme-related requirements and limitations resulting from their licences and the Mass Media Act, while broadcasting and distributing programming contents. In comparison with the modification of licences, they did not transfer the broadcasting right to another legal entity so frequently. It has been also established that the regulator in ten cases temporarily had revoked the broadcasting licences or decided to withdraw the statuses, because the irregularities were detected during expert supervision. The authors set out proposals for the improvement of the situation in the subject field, based on the obtained results. They consider that it could be a challenge for all broadcasting stakeholders, who however have to tackle the elimination of the multi-annual delay of the harmonisation of the broadcasting sector with the standards of European Union. According to the results of the present study, the stakeholders cannot be satisfied with the situation in Slovenian media landscape and with its development nowadays.

Strong coupling analogue of the Born series

International Nuclear Information System (INIS)

Dolinszky, T.

1989-10-01

In a given partial wave, the strength of the centrifugal term to be incorporated into the WKBA solutions in different spatial regions can be adjusted so as to make the first order wave functions everywhere smooth and, in strong coupling, exactly reproduce Quantum Mechanics throughout the space. The relevant higher order approximations supply an absolute convergent series expansion of the exact scattering state. (author) 4 refs.; 2 figs.; 2 tabs

Exact milestoning

International Nuclear Information System (INIS)

Bello-Rivas, Juan M.; Elber, Ron

2015-01-01

A new theory and an exact computer algorithm for calculating kinetics and thermodynamic properties of a particle system are described. The algorithm avoids trapping in metastable states, which are typical challenges for Molecular Dynamics (MD) simulations on rough energy landscapes. It is based on the division of the full space into Voronoi cells. Prior knowledge or coarse sampling of space points provides the centers of the Voronoi cells. Short time trajectories are computed between the boundaries of the cells that we call milestones and are used to determine fluxes at the milestones. The flux function, an essential component of the new theory, provides a complete description of the statistical mechanics of the system at the resolution of the milestones. We illustrate the accuracy and efficiency of the exact Milestoning approach by comparing numerical results obtained on a model system using exact Milestoning with the results of long trajectories and with a solution of the corresponding Fokker-Planck equation. The theory uses an equation that resembles the approximate Milestoning method that was introduced in 2004 [A. K. Faradjian and R. Elber, J. Chem. Phys. 120(23), 10880-10889 (2004)]. However, the current formulation is exact and is still significantly more efficient than straightforward MD simulations on the system studied

Broadcast Condom Advertising: A Case Study.

Science.gov (United States)

Kaplan, Herb; Houlberg, Rick

1990-01-01

Examines a San Francisco television station's decision to accept paid condom advertising. Notes that station leaders debated questions of public interest and public tastes in a city hard hit by AIDS. Finds that the station devised careful guidelines and began broadcasting the commercials on a trial basis. Notes that nearly all public and media…

National Workplace Literacy Program. Garment-Related Bilingual (English and Chinese) Broadcast Lessons. Book 1 and 2.

Science.gov (United States)

Chan, Ha Yin

A compilation of transcripts of 100 bilingual English/Chinese broadcast lessons for workers in the garment industry is presented. The lessons are part of the New York Chinatown Manpower Project's Workplace Literacy Program. With the support of the Sino Radio Broadcast Corporation, the lessons are broadcast daily in the morning and again after the…

PrECast: An Efficient Crypto-Free Solution for Broadcast-Based Attacks in IPv4 Networks

Directory of Open Access Journals (Sweden)

Dalal Hanna

2018-05-01

Full Text Available Broadcasting is one of the essential features in the Internet Protocol Ver 4 (IPv4. Attackers often exploit this feature of the IP protocol to launch several attacks against a network or an individual host. Attackers may either be a part of a Local Area Network (LAN or outside a LAN to launch these attacks. There are numerous papers available in the literature to solve problems resulting from IP broadcasting. However, all these solutions target a specific problem that results from IP broadcasting. Furthermore, these solutions use either a computationally-intensive cryptographic scheme, the a priori relation between the host and the network or a modified protocol stack at every host. In this paper, we provide a seamless and transparent solution to eliminate IP broadcasting and thus eliminate all problems related to IP broadcasting. Our proposed solution is crypto-free and does not need any modification to the protocol stack.

On the secrecy capacity of the broadcast wiretap channel with limited CSI feedback

KAUST Repository

Hyadi, Amal

2016-10-27

In this paper, we investigate the problem of secure broadcasting over block-fading channels with limited channel knowledge at the transmitter. More particularly, we analyze the effect of having imperfect channel state information (CSI) via a finite rate feedback on the throughput of a broadcast channel where the transmission is intended for multiple legitimate receivers in the presence of an eavesdropper. First, we partially characterize the ergodic secrecy capacity of the system when the source broadcasts the same information to all the receivers, i.e., common message transmission. Then, we look at the independent messages case, where the transmitter broadcasts multiple independent messages to the legitimate receivers. For this case, we present lower and upper bounds on the ergodic secrecy sum-capacity. In both scenarios, we show that the proposed lower and upper bounds coincide asymptotically as the capacity of the feedback links becomes large, hence, fully characterizing the secrecy capacity in this case.

On the secrecy capacity of the broadcast wiretap channel with limited CSI feedback

KAUST Repository

Hyadi, Amal; Rezki, Zouheir; Alouini, Mohamed-Slim

2016-01-01

In this paper, we investigate the problem of secure broadcasting over block-fading channels with limited channel knowledge at the transmitter. More particularly, we analyze the effect of having imperfect channel state information (CSI) via a finite rate feedback on the throughput of a broadcast channel where the transmission is intended for multiple legitimate receivers in the presence of an eavesdropper. First, we partially characterize the ergodic secrecy capacity of the system when the source broadcasts the same information to all the receivers, i.e., common message transmission. Then, we look at the independent messages case, where the transmitter broadcasts multiple independent messages to the legitimate receivers. For this case, we present lower and upper bounds on the ergodic secrecy sum-capacity. In both scenarios, we show that the proposed lower and upper bounds coincide asymptotically as the capacity of the feedback links becomes large, hence, fully characterizing the secrecy capacity in this case.

Feedback Halves the Dispersion for Some Two-User Broadcast Channels with Common Message

DEFF Research Database (Denmark)

Trillingsgaard, Kasper Fløe; Yang, Wei; Durisi, Giuseppe

2017-01-01

We investigate the maximum coding rate achievable on a two-user broadcast channel for the case where a common- message is transmitted using fixed-blocklength codes with feed- back. Specifically, we focus on a family of broadcast channels com- posed of two antisymmetric Z-channels. For this setup,...

Technological characteristics of digital video broadcasting: Handheld standard DVB-H

Directory of Open Access Journals (Sweden)

Andreja B. Samčović

2011-07-01

Full Text Available This paper gives an overview of the Digital Video Broadcasting - Handheld standard DVB-H, as a part of the DVB Project. This standard is based on the previous standard DVB-T, which was developed for the terrestrial digital television. The ways of DVB-H signal transmission are also described. Development of advanced technology enabled the digital video broadcasting over wireless portable terminals. This paper discusses the key technological features of the DVB-H standard, such as: time slicing, forward error correction, 4K mode and in-depth interleavers.

Broadcast scheduling for mobile advertising

OpenAIRE

De Reyck, B.; Degraeve, Z.

2003-01-01

We describe a broadcast scheduling system developed for a precision marketing firm specialized in location-sensitive permission-based mobile advertising using SMS (Short Message Service) text messaging. Text messages containing advertisements were sent to registered customers when they were shopping in one of two shopping centers in the vicinity of London. The ads typically contained a limited-time promotional offer. The company's problem was deciding which ads to send out to which customers ...

Status of women in Nigerian broadcasting media: a case for representation and upward mobility.

Science.gov (United States)

Pate, U A

1994-06-01

Questionnaires completed by 45 female employees from 8 broadcast stations in Nigeria revealed that, despite some growth in female employment in areas such as programming, the status of women in this sector reproduces women's subordinate status in the broader society. For every 1 woman employed in the state radio stations and state and federal television stations represented in the survey, there were 7 male employees. Although the 3 states covered have an aggregate population of 4.3 million women, only 231 represent them in broadcasting. Moreover, female journalists are concentrated in the lowest status positions and tend to be relegated to coverage of women's and social issues rather than news and current affairs. Respondents cited the following factors as responsible for the low representation of women in broadcasting: cultural factors (20 respondents), a late start (15), male chauvinism (5), and a lack of dedication (5). At the same time, 40 of the 45 respondents indicated they believed women have equal opportunities to men in the broadcast media, given ability and perseverance, and 35 ranked the prospects for the next generation of female journalists as wide open. Greater visibility of female broadcasters in the higher ranks of the industry and in news-oriented reporting positions is essential to undercut stereotypes of women as wives and mothers only. Urged is a conscious effort on the part of the Nigerian broadcasting industry to attract more women to the field and provide them with the training needed to career advancement.

Computing exact bundle compliance control charts via probability generating functions.

Science.gov (United States)

Chen, Binchao; Matis, Timothy; Benneyan, James

2016-06-01

Compliance to evidenced-base practices, individually and in 'bundles', remains an important focus of healthcare quality improvement for many clinical conditions. The exact probability distribution of composite bundle compliance measures used to develop corresponding control charts and other statistical tests is based on a fairly large convolution whose direct calculation can be computationally prohibitive. Various series expansions and other approximation approaches have been proposed, each with computational and accuracy tradeoffs, especially in the tails. This same probability distribution also arises in other important healthcare applications, such as for risk-adjusted outcomes and bed demand prediction, with the same computational difficulties. As an alternative, we use probability generating functions to rapidly obtain exact results and illustrate the improved accuracy and detection over other methods. Numerical testing across a wide range of applications demonstrates the computational efficiency and accuracy of this approach.

Robust Radio Broadcast Monitoring Using a Multi-Band Spectral Entropy Signature

Science.gov (United States)

Camarena-Ibarrola, Antonio; Chávez, Edgar; Tellez, Eric Sadit

Monitoring media broadcast content has deserved a lot of attention lately from both academy and industry due to the technical challenge involved and its economic importance (e.g. in advertising). The problem pose a unique challenge from the pattern recognition point of view because a very high recognition rate is needed under non ideal conditions. The problem consist in comparing a small audio sequence (the commercial ad) with a large audio stream (the broadcast) searching for matches.

The Olympic Games broadcasted as Interactive Television - New Media new Games?

DEFF Research Database (Denmark)

Bjørner, Thomas

or delayed video coverage of the Olympic Games. The Torino Olympic Broadcasting was the first to be filmed entirely in High Definition Television. In the future the use of digital video processing, computer vision, 3D-visualisation and animation techniques allow viewers to watch sports events almost......The Olympic Games is the world´s largest media event and television is the engine that has driven the growth of the Olympic Movement. Increases in broadcast revenue over the past two decades have provided the Olympic Movement with a huge financial base. More networks than ever before broadcast...... the Olympic Games to more countries and territories, with a record number of hours, a significant rise in the total viewing hours, and dramatic increases in live and prime-time coverage. Over 300 channels transmitted 35.000 hours of the Athens 2004 Olympic Games. The future of television is digital, which...

Broadcast media and the dissemination of weather information

Science.gov (United States)

Byrnes, J.

1973-01-01

Although television is the public's most preferred source of weather information, it fails to provide weather reports to those groups who seek the information early in the day and during the day. The result is that many people most often use radio as a source of information, yet preferring the medium of television. The public actively seeks weather information from both radio and TV stations, usually seeking information on current conditions and short range forecasts. forecasts. Nearly all broadcast stations surveyed were eager to air severe weather bulletins quickly and often. Interest in Nowcasting was high among radio and TV broadcasters, with a significant portion indicating a willingness to pay something for the service. However, interest among TV stations in increasing the number of daily reports was small.

Broadcasting collective operation contributions throughout a parallel computer

Science.gov (United States)

Faraj, Ahmad [Rochester, MN

2012-02-21

Methods, systems, and products are disclosed for broadcasting collective operation contributions throughout a parallel computer. The parallel computer includes a plurality of compute nodes connected together through a data communications network. Each compute node has a plurality of processors for use in collective parallel operations on the parallel computer. Broadcasting collective operation contributions throughout a parallel computer according to embodiments of the present invention includes: transmitting, by each processor on each compute node, that processor's collective operation contribution to the other processors on that compute node using intra-node communications; and transmitting on a designated network link, by each processor on each compute node according to a serial processor transmission sequence, that processor's collective operation contribution to the other processors on the other compute nodes using inter-node communications.

Broadcast Journalism Education and the Capstone Experience

Science.gov (United States)

Tanner, Andrea; Forde, Kathy Roberts; Besley, John C.; Weir, Tom

2012-01-01

This study assesses the current state of the television news capstone experience in accredited journalism and mass communication programs in the United States. Specifically, the authors employed a mixed-methods approach, interviewing 20 television news capstone instructors and conducting an analysis of broadcast journalism curriculum information…

Radio broadcasting for sustainable development in southern ...

African Journals Online (AJOL)

Patrick O. Waeber and Yvonne Orengo

2008-12-01

Dec 1, 2008 ... ABSTRACT. The Millennium Development Goals have been written into the Madagascar Road Map (2007 - 2012) in order to improve the Malagasy social, economic and environmental situation. The Andrew Lees Trust Radio Broadcasting Project in southern. Madagascar has been set up to alleviate ...

Spatial Air Index Based on Largest Empty Rectangles for Non-Flat Wireless Broadcast in Pervasive Computing

Directory of Open Access Journals (Sweden)

Jun-Hong Shen

2016-11-01

Full Text Available In pervasive computing, location-based services (LBSs are valuable for mobile clients based on their current locations. LBSs use spatial window queries to enable useful applications for mobile clients. Based on skewed access patterns of mobile clients, non-flat wireless broadcast has been shown to efficiently disseminate spatial objects to mobile clients. In this paper, we consider a scenario in which spatial objects are broadcast to mobile clients over a wireless channel in a non-flat broadcast manner to process window queries. For such a scenario, we propose an efficient spatial air index method to handle window query access in non-flat wireless broadcast environments. The concept of largest empty rectangles is used to avoid unnecessary examination of the broadcast content, thus reducing the processing time for window queries. Simulation results show that the proposed spatial air index method outperforms the existing methods under various settings.

Unified broadcast in sensor networks

DEFF Research Database (Denmark)

Hansen, Morten Tranberg; Jurdak, Raja; Kusy, Branislav

2011-01-01

of the network stack. UB is implemented as a transparent layer between the link and network layers, where it delays, schedules, and combines broadcasts from upper layer protocols before transmission on the wireless channel. Our empirical results in simulation and on a testbed show that UB can decrease...... the overall packet transmissions in the network by more than 60%, corresponding to more than 40% energy savings, without requiring new interfaces or affecting the correctness of the upper layer protocols....

Broadcasting and Telecommunications Industries in the Convergence Age: Toward a Sustainable Public-Centric Public Interest

Directory of Open Access Journals (Sweden)

Hwanho Choi

2018-02-01

Full Text Available The emergence of new digital technologies, such as the Internet and new business models such as over-the-top (OTT operators that utilize them, has transformed the media and broadcasting industries. As advanced technologies and business models are adopted, convergence between the broadcasting and telecommunication (“telecom” sectors has become a common business practice. Using the South Korean case study of a failed acquisition attempt of CJ HelloVision by SK Telecom, this research identifies the three essential features (economic, sociocultural, and industrial structure issues related to convergence in the broadcasting and media industries. Further, this study reveals the potential consequences of convergence to the public, industry, and society, and offers critical implications for future policy direction. Finally, this study suggests the need for a change in the policy direction in the age of convergence in the broadcasting and media industries. In addition, it calls for the importance of a public-centric public benefit. Social and consumer welfare, and not profit or industrial growth, should dictate the public interest orientation in the broadcasting and media industries. Therefore, the meaning of public interest in broadcasting and media should not be limited in the industrial context of media; rather, it should consider the access to service by the public, the condition of consumption, and its consequences in the perspective of social and consumer welfare.

It’s more about the Content than the Users! The Influence of Social Broadcasting on Stock Markets

DEFF Research Database (Denmark)

Benthaus, Janek; Beck, Roman

2015-01-01

to react quickly to broadcasted information. However, a comprehensive understanding about the influence of social broadcasting networks on stock markets is missing. In this study, we address this gap by conceptualizing and empirically testing a model incorporating three dimensions of social broadcasting...... a fixed effects panel analysis. The results show that the influence of social broadcasting on stock markets is driven by the message and discussion dimensions whereas the user dimension has no significant influence. Specifically, the influence of user mentions, financial sentiment, discussion reach......a large amount of stock-related information. This data is increasingly analyzed by research and practice to predict stock market developments. Insights from social broadcasting networks are used to support the decision-making process of investors and are integrated into automatic trading algorithms...

Weather uncertainty versus climate change uncertainty in a short television weather broadcast

Science.gov (United States)

Witte, J.; Ward, B.; Maibach, E.

2011-12-01

For TV meteorologists talking about uncertainty in a two-minute forecast can be a real challenge. It can quickly open the way to viewer confusion. TV meteorologists understand the uncertainties of short term weather models and have different methods to convey the degrees of confidence to the viewing public. Visual examples are seen in the 7-day forecasts and the hurricane track forecasts. But does the public really understand a 60 percent chance of rain or the hurricane cone? Communication of climate model uncertainty is even more daunting. The viewing public can quickly switch to denial of solid science. A short review of the latest national survey of TV meteorologists by George Mason University and lessons learned from a series of climate change workshops with TV broadcasters provide valuable insights into effectively using visualizations and invoking multimedia-learning theories in weather forecasts to improve public understanding of climate change.

Covering Adoption: General Depictions in Broadcast News

Science.gov (United States)

Kline, Susan L.; Karel, Amanda I.; Chatterjee, Karishma

2006-01-01

Using theories of stigma (Goffman, 1963) and media frames (Iyengar, 1991), 292 news stories pertaining to adoption that appeared on major broadcast networks between 2001 and 2004 were analyzed. Media coverage of adoptees contained more problematic than positive depictions. Although birth parents were not always depicted, adoptive parent and…

Poland's Press and Broadcasting Under the Gierek Regime

Science.gov (United States)

Shanor, Donald R.

1974-01-01

Reports that the Polish press and broadcasting have been carrying more news and less propaganda since the 1970 Baltic upheavel and that the Polish media are generally allowed more freedom than media in other Communist nations. (RB)

77 FR 6481 - Television Broadcasting Services; Lincoln, NE

Science.gov (United States)

2012-02-08

...] Television Broadcasting Services; Lincoln, NE AGENCY: Federal Communications Commission. ACTION: Final rule... power television rulemaking petitions requesting channel substitutions in May 2011, it subsequently... CFR Part 73 Television. Federal Communications Commission. Barbara A. Kreisman, Chief, Video Division...

ESA personal communications and digital audio broadcasting systems based on non-geostationary satellites

Science.gov (United States)

Logalbo, P.; Benedicto, J.; Viola, R.

1993-01-01

Personal Communications and Digital Audio Broadcasting are two new services that the European Space Agency (ESA) is investigating for future European and Global Mobile Satellite systems. ESA is active in promoting these services in their various mission options including non-geostationary and geostationary satellite systems. A Medium Altitude Global Satellite System (MAGSS) for global personal communications at L and S-band, and a Multiregional Highly inclined Elliptical Orbit (M-HEO) system for multiregional digital audio broadcasting at L-band are described. Both systems are being investigated by ESA in the context of future programs, such as Archimedes, which are intended to demonstrate the new services and to develop the technology for future non-geostationary mobile communication and broadcasting satellites.

Quantum broadcasting problem in classical low-power signal processing

International Nuclear Information System (INIS)

Janzing, Dominik; Steudel, Bastian

2007-01-01

We prove a no-broadcasting theorem for the Holevo information of a noncommuting ensemble stating that no operation can generate a bipartite ensemble such that both copies have the same information as the original. We argue that upper bounds on the average information over both copies imply lower bounds on the quantum capacity required to send the ensemble without information loss. This is because a channel with zero quantum capacity has a unitary extension transferring at least as much information to its environment as it transfers to the output. For an ensemble being the time orbit of a pure state under a Hamiltonian evolution, we derive such a bound on the required quantum capacity in terms of properties of the input and output energy distribution. Moreover, we discuss relations between the broadcasting problem and entropy power inequalities. The broadcasting problem arises when a signal should be transmitted by a time-invariant device such that the outgoing signal has the same timing information as the incoming signal had. Based on previous results we argue that this establishes a link between quantum information theory and the theory of low power computing because the loss of timing information implies loss of free energy

Population planning broadcasts in Bangladesh.

Science.gov (United States)

Ali, S A

1982-06-01

Bangladesh's growth rate of 2.36%/year is one of the highest in the world and, if present population trends continue, Bangladesh will have 153 million people by the year 2000. The Government adopted a comprehensive population policy in 1976 and seeks to reduce the population growth rate to 0 by 1992. Bangladesh's population control program further aims to raise the contraceptive acceptance rate from the current level of 14% of eligible couples to 38% by 1985, to raise the number of current contraceptive users from 2.4 to 7.3 million couples, and to achieve a sterilization level of 3.4 million people. Radio Bangladesh, which has been broadcasting programs on family planning since 1965, is playing an important motivational role in this effort. A Population Planning Cell was established within Radio Bangladesh in 1975 and 5 subcells located throughout the country broadcast independent programs on family planning 6 days/week. Evaluative surveys have confirmed the belief that radio is the most popular form of mass communication in rural areas. 47% of respondents in 1 survey identified radio as their main source of information about family planning, although only 12% reported contraceptive usage. An important task for radio in Bangladesh is to convince listeners that family planning practice is not incompatible with Islamic ideals and to overcome other superstitions and misconceptions about contraception.

Radio broadcasting: a conceptual challenge in Latin America

Directory of Open Access Journals (Sweden)

Nelia R. Del Bianco

2012-12-01

Full Text Available The objective of this paper is to present the partial results of research carried out by the Observatory of Public Radio Broadcasting of Latin America on the changes occurring in the public radio and TV systems in 10 Latin American countries, under the aspects of functioning models, management, financing, and social participation. After the rising to power of governments linked to parties from the left, we verified that communication policies are being established, which aim at closing the gap between traditional state broadcasting stations and the notion of public. This considers the principles that characterize the action of this media, determined by UNESCO (2001: universality, diversity, independence, and differentiation of content in the programming. A hundred and forty broadcasting stations were analyzed from the perspective of being public based on two criteria: those that are under the control of the State direct or indirectly, by means of concessions for use without profit for foundations, companies, and public universities; and those that receive public financing. Based on the analysis of the data, five trend tendencies were observed: the construction of a new regulatory framework; the creation of public companies instead of legal centralized state structures; the institution of relatively autonomous deliberative councils responsible for overseeing the management of the stations; the diversification of funding sources in an attempt to reverse the dependence on government resources; and the renewal of the programming with the opening for independent production.

Climate Matters: Increasing Climate Literacy Through Broadcast Meteorologists

Science.gov (United States)

Sanford, T. J.; Placky, B. W.

2015-12-01

Broadcast meteorologists are among the most trusted members of the media landscape and they have a unique opportunity to reach the broad public with information about climate change. A recent survey by Maibach, et al. (2015) has shown that more than 90% of TV weathercasters think that their audience is at least somewhat interested in learning about the local impacts of climate change and 7 in 10 think that it is appropriate for them to report the science of climate change to their audience. But about half of these TV weathercasters have experienced obstacles to reporting climate change - citing lack of time to research and produce material, in addition to lack of access to appropriate visuals/graphics and access to trusted scientific information. Climate Matters is an NSF funded program that partners with broadcast meteorologists to deliver scientifically sound climate change information to the public that is local and relevant. A team of climate scientists, meteorologists, data analysts, journalists, and multimedia artists analyze and prepare content on a weekly basis so that it may be readily included in a broadcast weather segment, online or during community outreach. The program started as a pilot project with just one meteorologist in 2010 before Climate Central launched a full-time, nationwide program in 2012. Since then, Climate Matters has grown to include over 250 meteorologists strong and in more than 100 markets across the country, including Spanish language TV stations.

78 FR 75306 - Television Broadcasting Services; Birmingham, Alabama

Science.gov (United States)

2013-12-11

...] Television Broadcasting Services; Birmingham, Alabama AGENCY: Federal Communications Commission. ACTION... Television Commission (``AETC''), the licensee of station WBIQ(TV), channel *39, Birmingham, Alabama... freeze on the filing of petitions for rulemaking by television stations seeking channel substitutions in...

76 FR 27914 - Television Broadcasting Services; Kalispell, MT

Science.gov (United States)

2011-05-13

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 11-20; RM-11619, DA 11-750] Television Broadcasting Services; Kalispell, MT AGENCY: Federal Communications Commission. ACTION: Final rule... U.S.C. 801(a)(1)(A). [[Page 27915

Student and Professional Attitudes Regarding Advertising Influence on Broadcast News Content: A Comparative Study.

Science.gov (United States)

Brown, Hubert W.; Barnes, Beth E.

Students studying Broadcast Journalism or Advertising and professionals working in those fields were surveyed on their attitudes regarding advertising influence on broadcast news content. This study compares the attitudes of the students and practitioners in the respective professions. While students and professionals agreed on a majority of…

Coherent detection passive optical access network enabling converged delivery of broadcast and dedicated broadband services

DEFF Research Database (Denmark)

Osadchiy, Alexey Vladimirovich; Prince, Kamau; Guerrero Gonzalez, Neil

2011-01-01

We propose a passive optical network architecture based on coherent detection for converged delivery of broadcast services from a dedicated remote broadcast server and user-specific services from a local central office. We experimentally demonstrate this architecture with mixed traffic types....... The broadcast channels were transmitted over 78 km of single mode fiber to a central office where they were multiplexed with the unicast channels for further fiber transmission over 34-km to reach the access network. Successful detection of all channels is demonstrated....

On the analysis of human mobility model for content broadcasting in 5G networks

KAUST Repository

Lau, Chun Pong

2018-02-15

Today\\'s mobile service providers aim at ensuring end-to-end performance guarantees. Hence, ensuring an efficient content delivery to end users is highly required. Currently, transmitting popular contents in modern mobile networks rely on unicast transmission. This result into a huge underutilization of the wireless bandwidth. The urban scale mobility of users is beneficial for mobile networks to allocate radio resources spatially and temporally for broadcasting contents. In this paper, we conduct a comprehensive analysis on a human activity/mobility model and the content broadcasting system in 5G mobile networks. The objective of this work is to describe how human daily activities could improve the content broadcasting efficiency. We achieve the objective by analyzing the transition probabilities of a user traveling over several places according to the change of states of daily human activities. Using a reallife simulation, we demonstrate the relationship between the human mobility and the optimization objective of the content broadcasting system.

Exact ∇{sup 4}R{sup 4} couplings and helicity supertraces

Energy Technology Data Exchange (ETDEWEB)

Bossard, Guillaume [Centre de Physique Théorique, Ecole Polytechnique, Université Paris-Saclay,91128 Palaiseau Cedex (France); Pioline, Boris [Laboratoire de Physique Théorique et Hautes Energies, CNRS UMR 7589,Université Pierre et Marie Curie,4 place Jussieu, 75252 Paris cedex 05 (France); CERN, Theoretical Physics Department,1211 Geneva 23 (Switzerland)

2017-01-12

In type II string theory compactified on a d-dimensional torus T{sup d} down to D=10−d dimensions, the R{sup 4} and ∇{sup 4}R{sup 4} four-graviton couplings are known exactly, for all values of the moduli, in terms of certain Eisenstein series of the U-duality group E{sub d}(ℤ). In the limit where one circle in the torus becomes large, these couplings are expected to reduce to their counterpart in dimension D+1, plus threshold effects and exponentially suppressed corrections corresponding to BPS black holes in dimension D+1 whose worldline winds around the circle. By combining the weak coupling and large radius limits, we determine these exponentially suppressed corrections exactly, and demonstrate that the contributions of 1/4-BPS black holes to the ∇{sup 4}R{sup 4} coupling are proportional to the appropriate helicity supertrace. Mathematically, our results provide the complete Fourier expansion of the next-to-minimal theta series of E{sub d+1}(ℤ) with respect to the maximal parabolic subgroup with Levi component E{sub d} for d≤6, and the complete Abelian part of the Fourier expansion of the same for d=7.

An Adaptive Information Quantity-Based Broadcast Protocol for Safety Services in VANET

Directory of Open Access Journals (Sweden)

Wenjie Wang

2016-01-01

Full Text Available Vehicle-to-vehicle communication plays a significantly important role in implementing safe and efficient road traffic. When disseminating safety messages in the network, the information quantity on safety packets changes over time and space. However, most of existing protocols view each packet the same to disseminate, preventing vehicles from collecting more recent and precise safety information. Hence, an information quantity-based broadcast protocol is proposed in this paper to ensure the efficiency of safety messages dissemination. In particular, we propose the concept of emergency-degree to evaluate packets’ information quantity. Then we present EDCast, an emergency-degree-based broadcast protocol. EDCast differentiates each packet’s priority for accessing the channel based on its emergency-degree so as to provide vehicles with more safety information timely and accurately. In addition, an adaptive scheme is presented to ensure fast dissemination of messages in different network condition. We compare the performance of EDCast with those of three other representative protocols in a typical highway scenario. Simulation results indicate that EDCast achieves higher broadcast efficiency and less redundancy with less delivery delay. What we found demonstrates that it is feasible and necessary for incorporating information quantity of messages in designing an efficient safety message broadcast protocol.

Common-Message Broadcast Channels with Feedback in the Nonasymptotic Regime: Full Feedback

DEFF Research Database (Denmark)

Trillingsgaard, Kasper Fløe; Yang, Wei; Durisi, Giuseppe

2018-01-01

We investigate the maximum coding rate achievable on a two-user broadcast channel for the case where a common message is transmitted with feedback using either fixed-blocklength codes or variable-length codes. For the fixed-blocklength-code setup, we establish nonasymptotic converse and achievabi......We investigate the maximum coding rate achievable on a two-user broadcast channel for the case where a common message is transmitted with feedback using either fixed-blocklength codes or variable-length codes. For the fixed-blocklength-code setup, we establish nonasymptotic converse...... and achievability bounds. An asymptotic analysis of these bounds reveals that feedback improves the second-order term compared to the no-feedback case. In particular, for a certain class of anti-symmetric broadcast channels, we show that the dispersion is halved. For the variable-length-code setup, we demonstrate...

76 FR 79113 - Amendment of Service and Eligibility Rules for FM Broadcast Translator Stations

Science.gov (United States)

2011-12-21

... of Service and Eligibility Rules for FM Broadcast Translator Stations AGENCY: Federal Communications... authorizing the use of FM translators with licenses or permits in effect as of May 1, 2009, to rebroadcast the... and Eligibility Rules for FM Broadcast Translator Stations, published at 74 FR 45126, September 1...

Pacific Nations Broadcasting II; Proceedings of the Conference (23rd, San Francisco, April 1973).

Science.gov (United States)

Draper, Benjamin, Ed.

Having as its goal the further development of understanding through the communications media, this document examines the utilization of broadcast media from both technological and sociological vantages. The papers contained herein were presented at the twenty-third annual Broadcast Industry Conference held at California State University in San…

78 FR 12010 - Radio Broadcasting Services; Pearsall, Texas

Science.gov (United States)

2013-02-21

... Broadcasting Services; Pearsall, Texas AGENCY: Federal Communications Commission. ACTION: Proposed rule... (``Petitioner''), licensee of FM Station KSAG, Channel 277A, Pearsall, Texas. Petitioner proposes to amend the... be allotted at Pearsall, Texas, in compliance with the Commission's minimum distance separation...

76 FR 33656 - Television Broadcasting Services; Nashville, TN

Science.gov (United States)

2011-06-09

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 11-29; RM-11622, DA 11-949] Television Broadcasting Services; Nashville, TN AGENCY: Federal Communications Commission. ACTION: Final rule... Part 73 Television. Federal Communications Commission. Barbara A. Kreisman, Chief, Video Division...

77 FR 46631 - Television Broadcasting Services; Greenville, NC

Science.gov (United States)

2012-08-06

...] Television Broadcasting Services; Greenville, NC AGENCY: Federal Communications Commission. ACTION: Final... acceptance of full power television rulemaking petitions requesting channel substitutions in May 2011, it... Subjects in 47 CFR Part 73 Television. Federal Communications Commission. Barbara A. Kreisman, Chief, Video...

77 FR 33997 - Television Broadcasting Services; Greenville, NC

Science.gov (United States)

2012-06-08

...] Television Broadcasting Services; Greenville, NC AGENCY: Federal Communications Commission. ACTION: Proposed... freeze on the acceptance of rulemaking petitions by full power television stations requesting channel... filed by full power television stations seeking to relocate from channel 51 pursuant to a voluntary...

76 FR 71909 - Television Broadcasting Services; Montgomery, AL

Science.gov (United States)

2011-11-21

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 11-137; RM-11637, DA 11-1863] Television Broadcasting Services; Montgomery, AL AGENCY: Federal Communications Commission. ACTION: Final... CFR Part 73 Television. Federal Communications Commission. Barbara A. Kreisman, Chief, Video Division...

76 FR 66250 - Television Broadcasting Services; Cleveland, OH

Science.gov (United States)

2011-10-26

...] Television Broadcasting Services; Cleveland, OH AGENCY: Federal Communications Commission. ACTION: Proposed rule. SUMMARY: The Commission has before it a petition for rulemaking filed by Community Television of Ohio License, LLC (``Community Television''), the licensee of station WJW (TV), channel 8, Cleveland...

76 FR 18497 - Television Broadcasting Services; Augusta, GA

Science.gov (United States)

2011-04-04

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 11-54, RM-11624; DA 11-499] Television Broadcasting Services; Augusta, GA AGENCY: Federal Communications Commission. ACTION: Proposed... 73 Television. Federal Communications Commission. Barbara A. Kreisman, Chief, Video Division, Media...

The Use of International Television Formats by Public-Service Broadcasters in Australia, Denmark and Germany

DEFF Research Database (Denmark)

Esser, Andrea; Jensen, Pia Majbritt

adaptations, as Jérôme Bourdon has noted, had no history here because they “contradicted almost everything public service broadcasting stood for” (2012: 114). Even though in many countries PSBs are also expected to provide entertainment, next to quality information and educational material, the overall idea...... the world is such, that it would be no exaggeration to speak of ‘creative destruction’ (Schumpeter 1942). How has this impacted on the production and provision of public-service broadcasting? Public-service broadcasters historically have different objectives to private commercial broadcasters and format...... of structural differences between the respective television markets. Moreover, a closer analysis of the genre and content of those formats employed, shows that the PSBs studied, even when buying and adapting formats from abroad, have tended to choose formats that fulfil the public-service remit....

Influence of call broadcast timing within point counts and survey duration on detection probability of marsh breeding birds

Directory of Open Access Journals (Sweden)

Douglas C. Tozer

2017-12-01

Full Text Available The Standardized North American Marsh Bird Monitoring Protocol recommends point counts consisting of a 5-min passive observation period, meant to be free of broadcast bias, followed by call broadcasts to entice elusive species to reveal their presence. Prior to this protocol, some monitoring programs used point counts with broadcasts during the first 5 min of 10-min counts, and have since used 15-min counts with an initial 5-min passive period (P1 followed by 5 min of broadcasts (B and a second 5-min passive period (P2 to ensure consistency across years and programs. Influence of timing of broadcasts within point counts and point count duration, however, have rarely been assessed. Using data from 23,973 broadcast-assisted 15-min point counts conducted throughout the Great Lakes-St. Lawrence region between 2008 and 2016 by Bird Studies Canada's Marsh Monitoring Program and Central Michigan University's Great Lakes Coastal Wetland Monitoring Program, we estimated detection probabilities of individuals for 14 marsh breeding bird species during P1B compared to BP2, P1 compared to P2, and P1B compared to P1BP2. For six broadcast species and American Bittern (Botaurus lentiginosus, we found no significant difference in detection during P1B compared to BP2, and no significant difference in four of the same seven species during P1 compared to P2. We observed small but significant differences in detection for 7 of 14 species during P1B compared to P1BP2. We conclude that differences in timing of broadcasts causes no bias based on counts from entire 10-minute surveys, although P1B should be favored over BP2 because the same amount of effort in P1B avoids broadcast bias in all broadcast species, and 10-min surveys are superior to 15-min surveys because modest gains in detection of some species does not warrant the additional effort. We recommend point counts consisting of 5 min of passive observation followed by broadcasts, consistent with the standardized

Downlink Cooperative Broadcast Transmission Based on Superposition Coding in a Relaying System for Future Wireless Sensor Networks.

Science.gov (United States)

Liu, Yang; Han, Guangjie; Shi, Sulong; Li, Zhengquan

2018-06-20

This study investigates the superiority of cooperative broadcast transmission over traditional orthogonal schemes when applied in a downlink relaying broadcast channel (RBC). Two proposed cooperative broadcast transmission protocols, one with an amplify-and-forward (AF) relay, and the other with a repetition-based decode-and-forward (DF) relay, are investigated. By utilizing superposition coding (SupC), the source and the relay transmit the private user messages simultaneously instead of sequentially as in traditional orthogonal schemes, which means the channel resources are reused and an increased channel degree of freedom is available to each user, hence the half-duplex penalty of relaying is alleviated. To facilitate a performance evaluation, theoretical outage probability expressions of the two broadcast transmission schemes are developed, based on which, we investigate the minimum total power consumption of each scheme for a given traffic requirement by numerical simulation. The results provide details on the overall system performance and fruitful insights on the essential characteristics of cooperative broadcast transmission in RBCs. It is observed that better overall outage performances and considerable power gains can be obtained by utilizing cooperative broadcast transmissions compared to traditional orthogonal schemes.

76 FR 20248 - Television Broadcasting Services; Decatur, IL

Science.gov (United States)

2011-04-12

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 10-264; RM-11615, DA 11-572] Television Broadcasting Services; Decatur, IL AGENCY: Federal Communications Commission. ACTION: Final rule... CFR Part 73 Television. Federal Communications Commission. Barbara A. Kreisman, Chief, Video Division...

75 FR 81190 - Television Broadcasting Services; Yuma, AZ

Science.gov (United States)

2010-12-27

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 10-2365; MB Docket No. 02-151; RM-10453] Television Broadcasting Services; Yuma, AZ AGENCY: Federal Communications Commission. ACTION: Dismissal. SUMMARY: The Commission dismisses the petition for rulemaking filed by Arizona Western College, requesting...

Scheduling Broadcasts in a Network of Timelines

KAUST Repository

Manzoor, Emaad A.

2015-05-12

Broadcasts and timelines are the primary mechanism of information exchange in online social platforms today. Services like Facebook, Twitter and Instagram have enabled ordinary people to reach large audiences spanning cultures and countries, while their massive popularity has created increasingly competitive marketplaces of attention. Timing broadcasts to capture the attention of such geographically diverse audiences has sparked interest from many startups and social marketing gurus. However, formal study is lacking on both the timing and frequency problems. In this thesis, we introduce, motivate and solve the broadcast scheduling problem of specifying the timing and frequency of publishing content to maximise the attention received. We validate and quantify three interacting behavioural phenomena to parametrise social platform users: information overload, bursty circadian rhythms and monotony aversion, which is defined here for the first time. Our analysis of the influence of monotony refutes the common assumption that posts on social network timelines are consumed piecemeal independently. Instead, we reveal that posts are consumed in chunks, which has important consequences for any future work considering human behaviour over social network timelines. Our quantification of monotony aversion is also novel, and has applications to problems in various domains such as recommender list diversification, user satiation and variety-seeking consumer behaviour. Having studied the underlying behavioural phenomena, we link schedules, timelines, attention and behaviour by formalising a timeline information exchange process. Our formulation gives rise to a natural objective function that quantifies the expected collective attention an arrangement of posts on a timeline will receive. We apply this formulation as a case-study on real-data from Twitter, where we estimate behavioural parameters, calculate the attention potential for different scheduling strategies and, using the

Broadcasting, Reacting, Engaging

DEFF Research Database (Denmark)

Etter, Michael

2014-01-01

Purpose - Symmetric communication and relationship building are core principles of public relations, which have been highlighted for CSR communication. In this paper three different communication strategies for CSR communication in Twitter are developed, of which each contributes differently...... to the ideals of symmetric communication and relationship building. The framework is then applied to analyze how companies use the micro-blogging service Twitter for CSR communication. Design/methodology/approach - Social network analysis is used to identify the 30 most central corporate accounts in a CSR...... Twitter-Network. From these accounts over 40´000 tweets are extracted and manually coded. Anova is applied to investigate differences in the weighting of CSR topics between the different strategies. Findings - The analysis reveals that corporations adhere to a broadcasting strategy or a reactive strategy...

Time-Zone-Pattern Satellite Broadcasting Antenna

Science.gov (United States)

Galindo, Victor; Rahmat-Samii, Yahya; Imbriale, William A.; Cohen, Herb; Cagnon, Ronald R.

1988-01-01

Direct-broadcast satellite antenna designs provide contoured beams to match four time zones in 48 contiguous states and spot beams for Alaska, Hawaii, and Puerto Rico presented in 29-page report. Includes descriptions of procedures used to arrive at optimized designs. Arrangements, amplitudes, and phases of antenna feeds presented in tables. Gain contours shown graphically. Additional tables of performance data given for cities in service area of Eastern satellite.

Modeling of Slovak Language for Broadcast News Transcription

Directory of Open Access Journals (Sweden)

STAŠ Ján

2015-10-01

Full Text Available The paper describes recent progress in the development the Slovak language models for transcription of spontaneous speech such as broadcast news, educational talks and lectures, or meetings. This work extends previous research oriented on the automatic transcription of dictated speech and brings some new extensions for improving perplexity and robustness of the Slovak language models trained on the web-based and electronic language resources for being more precise in recognition of spontaneous speech. These improvements include better text preprocessing, document classification, class-based and filled pauses modeling, web-data augmentation and fast model adaptation to the target domain. Experiments have been performed on the four different evaluation data sets, including judicial and newspaper readings, broadcast news recordings and parliament proceedings with the Slovak transcription system. Preliminary results show significant decrease of the word error rate for multiple transcription system configurations of acoustic and language models.

Augmenting a TV Broadcast with Synchronised User Generated Video and Relevant Social Network Content

NARCIS (Netherlands)

Stokking, H.M.; Veenhuizen, A.T.; Kaptein, A.M.; Niamut, O.A.

2014-01-01

As TNO, we have developed an Augmented Live Broadcast use case, using components from the FP7 STEER project. In this use case, a television broadcast of a live event is augmented with user generated content. This user generated content consists of videos made by users at the event, and also of

Line-plane broadcasting in a data communications network of a parallel computer

Science.gov (United States)

Archer, Charles J.; Berg, Jeremy E.; Blocksome, Michael A.; Smith, Brian E.

2010-06-08

Methods, apparatus, and products are disclosed for line-plane broadcasting in a data communications network of a parallel computer, the parallel computer comprising a plurality of compute nodes connected together through the network, the network optimized for point to point data communications and characterized by at least a first dimension, a second dimension, and a third dimension, that include: initiating, by a broadcasting compute node, a broadcast operation, including sending a message to all of the compute nodes along an axis of the first dimension for the network; sending, by each compute node along the axis of the first dimension, the message to all of the compute nodes along an axis of the second dimension for the network; and sending, by each compute node along the axis of the second dimension, the message to all of the compute nodes along an axis of the third dimension for the network.

Unsupervised Speaker Change Detection for Broadcast News Segmentation

DEFF Research Database (Denmark)

Jørgensen, Kasper Winther; Mølgaard, Lasse Lohilahti; Hansen, Lars Kai

2006-01-01

This paper presents a speaker change detection system for news broadcast segmentation based on a vector quantization (VQ) approach. The system does not make any assumption about the number of speakers or speaker identity. The system uses mel frequency cepstral coefficients and change detection...

78 FR 27342 - Radio Broadcasting Services; Moran, Texas

Science.gov (United States)

2013-05-10

... Broadcasting Services; Moran, Texas AGENCY: Federal Communications Commission. ACTION: Proposed rule. SUMMARY... service at Moran, Texas. Channel 281A can be allotted at Moran, Texas, in compliance with the Commission's... parties should serve petitioner as follows: Katherine Pyeatt, 215 Cedar Springs Rd., 1605, Dallas, Texas...

75 FR 3695 - Television Broadcasting Services; Birmingham, AL

Science.gov (United States)

2010-01-22

...] Television Broadcasting Services; Birmingham, AL AGENCY: Federal Communications Commission. ACTION: Proposed... Television Commission (``AETC''), the licensee of noncommercial educational station WBIQ (TV), channel *10... procedures for comments, see 47 CFR 1.415 and 1.420. List of Subjects in 47 CFR Part 73 Television...

Secure Broadcasting with Imperfect Channel State Information at the Transmitter

KAUST Repository

Hyadi, Amal; Rezki, Zouheir; Khisti, Ashish; Alouini, Mohamed-Slim

2015-01-01

We investigate the problem of secure broadcasting over fast fading channels with imperfect main channel state information (CSI) at the transmitter. In particular, we analyze the effect of the noisy estimation of the main CSI on the throughput of a broadcast channel where the transmission is intended for multiple legitimate receivers in the presence of an eavesdropper. Besides, we consider the realistic case where the transmitter is only aware of the statistics of the eavesdropper’s CSI and not of its channel’s realizations. First, we discuss the common message transmission case where the source broadcasts the same information to all the receivers, and we provide an upper and a lower bounds on the ergodic secrecy capacity. For this case, we show that the secrecy rate is limited by the legitimate receiver having, on average, the worst main channel link and we prove that a non-zero secrecy rate can still be achieved even when the CSI at the transmitter is noisy. Then, we look at the independent messages case where the transmitter broadcasts multiple messages to the receivers, and each intended user is interested in an independent message. For this case, we present an expression for the achievable secrecy sum-rate and an upper bound on the secrecy sum-capacity and we show that, in the limit of large number of legitimate receivers K, our achievable secrecy sum-rate follows the scaling law log((1−) log(K)), where is the estimation error variance of the main CSI. The special cases of high SNR, perfect and no-main CSI are also analyzed. Analytical derivations and numerical results are presented to illustrate the obtained expressions for the case of independent and identically distributed Rayleigh fading channels.

Secure Broadcasting with Imperfect Channel State Information at the Transmitter

KAUST Repository

Hyadi, Amal

2015-11-13

We investigate the problem of secure broadcasting over fast fading channels with imperfect main channel state information (CSI) at the transmitter. In particular, we analyze the effect of the noisy estimation of the main CSI on the throughput of a broadcast channel where the transmission is intended for multiple legitimate receivers in the presence of an eavesdropper. Besides, we consider the realistic case where the transmitter is only aware of the statistics of the eavesdropper’s CSI and not of its channel’s realizations. First, we discuss the common message transmission case where the source broadcasts the same information to all the receivers, and we provide an upper and a lower bounds on the ergodic secrecy capacity. For this case, we show that the secrecy rate is limited by the legitimate receiver having, on average, the worst main channel link and we prove that a non-zero secrecy rate can still be achieved even when the CSI at the transmitter is noisy. Then, we look at the independent messages case where the transmitter broadcasts multiple messages to the receivers, and each intended user is interested in an independent message. For this case, we present an expression for the achievable secrecy sum-rate and an upper bound on the secrecy sum-capacity and we show that, in the limit of large number of legitimate receivers K, our achievable secrecy sum-rate follows the scaling law log((1−) log(K)), where is the estimation error variance of the main CSI. The special cases of high SNR, perfect and no-main CSI are also analyzed. Analytical derivations and numerical results are presented to illustrate the obtained expressions for the case of independent and identically distributed Rayleigh fading channels.

Carrier phase synchronization system for improved amplitude modulation and television broadcast reception

Science.gov (United States)

Smith, Stephen F [Loudon, TN; Moore, James A [Powell, TN

2009-09-08

Systems and methods are described for carrier phase synchronization for improved AM and TV broadcast reception. A method includes synchronizing the phase of a carrier frequency of a broadcast signal with the phase of a remote reference frequency. An apparatus includes a receiver to detect the phase of a reference signal; a phase comparator coupled to the reference signal-phase receiver; a voltage controlled oscillator coupled to the phase comparator; and a phase-controlled radio frequency output coupled to the voltage controlled oscillator.

78 FR 75563 - Commission Policies and Procedures Under the Communications Act, Foreign Investment in Broadcast...

Science.gov (United States)

2013-12-12

... competitive opportunities (ECO) approach for broadcast foreign ownership similar to that applied in common... Technology, a firm that consults with financial institutions and broadcast owners. Adelante Comments at 1-2... threats and national security issues have arisen as technology has advanced,\\33\\ we do not believe that...

On the analytic continuation of functions defined by Legendre series

International Nuclear Information System (INIS)

Grinstein, F.F.

1981-07-01

An infinite diagonal sequence of Punctual Pade Approximants is considered for the approximate analytical continuation of a function defined by a formal Legendre series. The technique is tested in the case of two series with exactly known analytical sum: the generating function for Legendre polynomials and the Coulombian scattering amplitude. (author)

Broadcast Scheduling Strategy Based on the Priority of Real.Time Data in a Mobile Environment

Institute of Scientific and Technical Information of China (English)

YangJin-cait; LiuYun-sheng

2003-01-01

Data broadcast is an important data dissemination approach in mobile environment. On broadcast channel,scalability and efficiency of data transmission are satisfied. In a mobile environment, there exists a kind of real-time database application in which both the transactions and data can have their timing constraints and priorities of different levels.In order to meet the requirement of real-time data disseminaring and retrieving, a broadcast scheduling strategy HPF-ED F (Highest Priority First with Earlier Deadline and Frequency) is proposed under the BoD (Broadcast on Demand) model. Using the strategy, data items are scheduled according to their priority the transaction imposed on them or system set for them. The strategy also considers other characteristics of data items such as deadline and popularity of data. The extensive simulation experiments have been conducted to evaluate the performance of the proposed algorithm. Results show that it can achieve excellent performance compared with existing strategies.

Broadcast Scheduling Strategy Based on the Priority of Real- Time Data in a Mobile Environment

Institute of Scientific and Technical Information of China (English)

Yang Jin-cai; Liu Yun-sheng

2003-01-01

Data broadcast is an important data dissemina-tion approach in mobile environment. On broadcast channel,scalability and efficiency of data transmission are satisfied. In a mobile environment, there exists a kind of real-time data-base application in which both the transactions and data can have their timing constraints and priorities of different levels.In order to meet the requirement of real-time data dissemina-ting and retrieving, a broadcast scheduling strategy HPF-ED F(Highest Priority First with Earlier Deadline and Frequen-cy) is proposed under the BoD (Broadcast on Demand) mod-el. Using the strategy, data items are scheduled according to their priority the transaction imposed on them or system set for them. The strategy also considers other characteristics ofdata items such as deadline and popularity of data. The exten-sive simulation experiments have been conducted to evaluate the performance of the proposed algorithm. Results show that it can achieve excellent performance compared with existing strategies.

The cigarette advertising broadcast ban and magazine coverage of smoking and health.

Science.gov (United States)

Warner, K E; Goldenhar, L M

1989-01-01

At the time of the cigarette broadcast advertising ban, which took effect in 1971, cigarette manufacturers rapidly shifted advertising expenditures from the broadcast media to the print media. In the last year of broadcast advertising and the first year of the ban, cigarette ad expenditures in a sample of major national magazines increased by 49 and then 131 percent in constant dollars. From an 11-year period preceding the ban to an 11-year period following it, these magazines decreased their coverage of smoking and health by 65 percent, an amount that is statistically significantly greater than decreases found in magazines that did not carry cigarette ads and in two major newspapers. This finding adds to evidence that media dependent on cigarette advertising have restricted their coverage of smoking and health. This may have significant implications for public health, as well as raising obvious concerns about the integrity of the profession of journalism.

Efficient exact-exchange time-dependent density-functional theory methods and their relation to time-dependent Hartree-Fock.

Science.gov (United States)

Hesselmann, Andreas; Görling, Andreas

2011-01-21

A recently introduced time-dependent exact-exchange (TDEXX) method, i.e., a response method based on time-dependent density-functional theory that treats the frequency-dependent exchange kernel exactly, is reformulated. In the reformulated version of the TDEXX method electronic excitation energies can be calculated by solving a linear generalized eigenvalue problem while in the original version of the TDEXX method a laborious frequency iteration is required in the calculation of each excitation energy. The lowest eigenvalues of the new TDEXX eigenvalue equation corresponding to the lowest excitation energies can be efficiently obtained by, e.g., a version of the Davidson algorithm appropriate for generalized eigenvalue problems. Alternatively, with the help of a series expansion of the new TDEXX eigenvalue equation, standard eigensolvers for large regular eigenvalue problems, e.g., the standard Davidson algorithm, can be used to efficiently calculate the lowest excitation energies. With the help of the series expansion as well, the relation between the TDEXX method and time-dependent Hartree-Fock is analyzed. Several ways to take into account correlation in addition to the exact treatment of exchange in the TDEXX method are discussed, e.g., a scaling of the Kohn-Sham eigenvalues, the inclusion of (semi)local approximate correlation potentials, or hybrids of the exact-exchange kernel with kernels within the adiabatic local density approximation. The lowest lying excitations of the molecules ethylene, acetaldehyde, and pyridine are considered as examples.

47 CFR 76.1506 - Carriage of television broadcast signals.

Science.gov (United States)

2010-10-01

... with the Commission its Notice of Intent to establish an open video system. (m) Sports broadcast... notices unless they receive notice within a reasonable time from the appropriate programming provider that... Office of Management and Budget. ...

DVB-H vs. DVB-NGH: A survey and comparison for the evolution of mobile TV broadcasting

CSIR Research Space (South Africa)

Bembe, M

2015-07-01

Full Text Available DVB-NGH (Digital Video Broadcasting-Next Generation Handheld) is the next generation technology for mobile TV broadcasting. It integrates both satellite and terrestrial techniques, which is vital in supporting rich media content for mobile handheld...

76 FR 12292 - Radio Broadcasting Services; Kualapuu, HI

Science.gov (United States)

2011-03-07

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 11-323; MB Docket No. 09-189; RM-11564] Radio Broadcasting Services; Kualapuu, HI AGENCY: Federal Communications Commission. ACTION: Final rule. SUMMARY: The Audio Division, at the request of Kemp Communications, Inc., allots FM Channel 296C2 at Kualapuu, Hawaii...

78 FR 42700 - Radio Broadcasting Services; Matagorda, Texas

Science.gov (United States)

2013-07-17

... Broadcasting Services; Matagorda, Texas AGENCY: Federal Communications Commission. ACTION: Final rule. SUMMARY... FM Channel 252A at Matagorda, Texas. This allotment change is part of a hybrid rule making and FM... 291A at Matagorda, Texas, is located within 320 kilometers (199 miles) of the U.S.-Mexican border...

A Dynamic Probabilistic Based Broadcasting Scheme for MANETs

Science.gov (United States)

Shanmugam, Kannan; Subburathinam, Karthik; Velayuthampalayam Palanisamy, Arunachalam

2016-01-01

MANET is commonly known as Mobile Ad Hoc Network in which cluster of mobile nodes can communicate with each other without having any basic infrastructure. The basic characteristic of MANET is dynamic topology. Due to the dynamic behavior nature, the topology of the network changes very frequently, and this will lead to the failure of the valid route repeatedly. Thus, the process of finding the valid route leads to notable drop in the throughput of the network. To identify a new valid path to the targeted mobile node, available proactive routing protocols use simple broadcasting method known as simple flooding. The simple flooding method broadcasts the RREQ packet from the source to the rest of the nodes in mobile network. But the problem with this method is disproportionate repetitive retransmission of RREQ packet which could result in high contention on the available channel and packet collision due to extreme traffic in the network. A reasonable number of routing algorithms have been suggested for reducing the lethal impact of flooding the RREQ packets. However, most of the algorithms have resulted in considerable amount of complexity and deduce the throughput by depending on special hardware components and maintaining complex information which will be less frequently used. By considering routing complexity with the goal of increasing the throughput of the network, in this paper, we have introduced a new approach called Dynamic Probabilistic Route (DPR) discovery. The Node's Forwarding Probability (NFP) is dynamically calculated by the DPR mobile nodes using Probability Function (PF) which depends on density of local neighbor nodes and the cumulative number of its broadcast covered neighbors. PMID:27019868

Power Series Expansion of Propagator for Path Integral and Its Applications

International Nuclear Information System (INIS)

Ou Yuanjin; Liang Xianting

2007-01-01

In this paper we obtain a propagator of path integral for a harmonic oscillator and a driven harmonic oscillator by using the power series expansion. It is shown that our result for the harmonic oscillator is more exact than the previous one obtained with other approximation methods. By using the same method, we obtain a propagator of path integral for the driven harmonic oscillator, which does not have any exact expansion. The more exact propagators may improve the path integral results for these systems.

Can a Small Minority Institution of Higher Education Develop a Business Oriented Broadcast Management Curriculum?

Science.gov (United States)

Mancuso, Louis C.

Broadcast stations throughout the nation are being challenged by the Federal Communications Commission and by private organizations to hire blacks to fill job openings in production and management. Therefore, Xavier University of Louisiana decided to embark on a program to develop a broadcast management program under the auspices of the marketing…

Compressive sensing for feedback reduction in MIMO broadcast channels

KAUST Repository

Eltayeb, Mohammed E.; Al-Naffouri, Tareq Y.; Bahrami, Hamid Reza Talesh

2014-01-01

In multi-antenna broadcast networks, the base stations (BSs) rely on the channel state information (CSI) of the users to perform user scheduling and downlink transmission. However, in networks with large number of users, obtaining CSI from all users

Audience Research in American Broadcasting: The Early Years.

Science.gov (United States)

Hurwitz, Donald

The basic arrangements and practices of American broadcast audience research and measurement were established during the first decade (1920-29) of the field's existence, and were motivated by commercial and competing institutional concerns within the broader context of evolving forms of imagination and expression. A review of the evidence found in…

47 CFR 76.66 - Satellite broadcast signal carriage.

Science.gov (United States)

2010-10-01

... carriers are required to carry digital-only stations upon request in markets in which the satellite carrier... digital signals of each television broadcast station that is located in a local market in Alaska or Hawaii... retransmits a local television station signal back into the local market of that television station for...

75 FR 3641 - Television Broadcasting Services; Anchorage, AK

Science.gov (United States)

2010-01-22

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 10-40; MB Docket No. 09-210; RM-11583] Television Broadcasting Services; Anchorage, AK AGENCY: Federal Communications Commission. ACTION: Final rule... review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television, Television...

76 FR 67397 - Radio Broadcasting Services; Llano, Texas

Science.gov (United States)

2011-11-01

...] Radio Broadcasting Services; Llano, Texas AGENCY: Federal Communications Commission. ACTION: Proposed... substituting Channel 242C3 for vacant Channel 293C3, at Llano, Texas. The proposal is part of a contingently... required for the allotment of Channel 242C3 at Llano, Texas, because the proposed allotment is located...

76 FR 19275 - Television Broadcasting Services; Jackson, MS

Science.gov (United States)

2011-04-07

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 11-8; RM-11618, DA 11-516] Television Broadcasting Services; Jackson, MS AGENCY: Federal Communications Commission. ACTION: Final rule... review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television. Federal...

75 FR 19907 - Television Broadcasting Services; Beaumont, TX

Science.gov (United States)

2010-04-16

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 10-606; MB Docket No. 10-49; RM-11593] Television Broadcasting Services; Beaumont, TX AGENCY: Federal Communications Commission. ACTION: Final rule... Congressional review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television, Television...

Exact Heat Kernel on a Hypersphere and Its Applications in Kernel SVM

Directory of Open Access Journals (Sweden)

Chenchao Zhao

2018-01-01

Full Text Available Many contemporary statistical learning methods assume a Euclidean feature space. This paper presents a method for defining similarity based on hyperspherical geometry and shows that it often improves the performance of support vector machine compared to other competing similarity measures. Specifically, the idea of using heat diffusion on a hypersphere to measure similarity has been previously proposed and tested by Lafferty and Lebanon [1], demonstrating promising results based on a heuristic heat kernel obtained from the zeroth order parametrix expansion; however, how well this heuristic kernel agrees with the exact hyperspherical heat kernel remains unknown. This paper presents a higher order parametrix expansion of the heat kernel on a unit hypersphere and discusses several problems associated with this expansion method. We then compare the heuristic kernel with an exact form of the heat kernel expressed in terms of a uniformly and absolutely convergent series in high-dimensional angular momentum eigenmodes. Being a natural measure of similarity between sample points dwelling on a hypersphere, the exact kernel often shows superior performance in kernel SVM classifications applied to text mining, tumor somatic mutation imputation, and stock market analysis.

Exact Green's function method of solar force-free magnetic-field computations with constant alpha. I - Theory and basic test cases

Science.gov (United States)

Chiu, Y. T.; Hilton, H. H.

1977-01-01

Exact closed-form solutions to the solar force-free magnetic-field boundary-value problem are obtained for constant alpha in Cartesian geometry by a Green's function approach. The uniqueness of the physical problem is discussed. Application of the exact results to practical solar magnetic-field calculations is free of series truncation errors and is at least as economical as the approximate methods currently in use. Results of some test cases are presented.

Will broadcasters survive in the online and digital domain?

NARCIS (Netherlands)

Leurdijk, A.

2007-01-01

Digital television and the internet are fundamentally changing media markets. Consumers have access to an increasing amount of news, information and entertainment. In addition to traditional media companies such as publishers and broadcasters new players enter the market as content producers,

Exact cosmological solutions for MOG

International Nuclear Information System (INIS)

Roshan, Mahmood

2015-01-01

We find some new exact cosmological solutions for the covariant scalar-tensor-vector gravity theory, the so-called modified gravity (MOG). The exact solution of the vacuum field equations has been derived. Also, for non-vacuum cases we have found some exact solutions with the aid of the Noether symmetry approach. More specifically, the symmetry vector and also the Noether conserved quantity associated to the point-like Lagrangian of the theory have been found. Also we find the exact form of the generic vector field potential of this theory by considering the behavior of the relevant point-like Lagrangian under the infinitesimal generator of the Noether symmetry. Finally, we discuss the cosmological implications of the solutions. (orig.)

47 CFR 73.1211 - Broadcast of lottery information.

Science.gov (United States)

2010-10-01

... paragraph (c) of this section, shall broadcast any advertisement of or information concerning any lottery... section shall not apply to an advertisement, list of prizes or other information concerning: (1) A lottery... and ancillary to the primary business of that organization. (18 U.S.C. 1307(a); 102 Stat. 3205). (d)(1...

Quasi-exact solutions of nonlinear differential equations

OpenAIRE

Kudryashov, Nikolay A.; Kochanov, Mark B.

2014-01-01

The concept of quasi-exact solutions of nonlinear differential equations is introduced. Quasi-exact solution expands the idea of exact solution for additional values of parameters of differential equation. These solutions are approximate solutions of nonlinear differential equations but they are close to exact solutions. Quasi-exact solutions of the the Kuramoto--Sivashinsky, the Korteweg--de Vries--Burgers and the Kawahara equations are founded.

Relay-aided multi-cell broadcasting with random network coding

DEFF Research Database (Denmark)

Lu, Lu; Sun, Fan; Xiao, Ming

2010-01-01

We investigate a relay-aided multi-cell broadcasting system using random network codes, where the focus is on devising efficient scheduling algorithms between relay and base stations. Two scheduling algorithms are proposed based on different feedback strategies; namely, a one-step scheduling...

78 FR 58470 - Television Broadcasting Services; Cedar Rapids, Iowa

Science.gov (United States)

2013-09-24

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 13-182; RM-11701; DA 13-1882] Television Broadcasting Services; Cedar Rapids, Iowa AGENCY: Federal Communications Commission. ACTION: Final... CFR Part 73 Television. Federal Communications Commission. Barbara A. Kreisman, Chief, Video Division...

76 FR 18415 - Television Broadcasting Services; New Haven, CT

Science.gov (United States)

2011-04-04

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 09-123; RM-11546, DA 11-501] Television Broadcasting Services; New Haven, CT AGENCY: Federal Communications Commission. ACTION: Final rule... CFR Part 73 Television. Federal Communications Commission. Barbara A. Kreisman, Chief, Video Division...

76 FR 19276 - Television Broadcasting Services; El Paso, TX

Science.gov (United States)

2011-04-07

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 11-4; RM-11616, DA 11-530] Television Broadcasting Services; El Paso, TX AGENCY: Federal Communications Commission. ACTION: Final rule... Part 73 Television. Federal Communications Commission. Barbara A. Kreisman, Chief, Video Division...

76 FR 28946 - Television Broadcasting Services; El Paso, TX

Science.gov (United States)

2011-05-19

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 11-74, RM-11630; DA 11-746] Television Broadcasting Services; El Paso, TX AGENCY: Federal Communications Commission. ACTION: Proposed... of Subjects in 47 CFR Part 73 Television Federal Communications Commission. Barbara A. Kreisman...

Satellite single-axis attitude determination based on Automatic Dependent Surveillance - Broadcast signals

Science.gov (United States)

Zhou, Kaixing; Sun, Xiucong; Huang, Hai; Wang, Xinsheng; Ren, Guangwei

2017-10-01

The space-based Automatic Dependent Surveillance - Broadcast (ADS-B) is a new technology for air traffic management. The satellite equipped with spaceborne ADS-B system receives the broadcast signals from aircraft and transfers the message to ground stations, so as to extend the coverage area of terrestrial-based ADS-B. In this work, a novel satellite single-axis attitude determination solution based on the ADS-B receiving system is proposed. This solution utilizes the signal-to-noise ratio (SNR) measurement of the broadcast signals from aircraft to determine the boresight orientation of the ADS-B receiving antenna fixed on the satellite. The basic principle of this solution is described. The feasibility study of this new attitude determination solution is implemented, including the link budget and the access analysis. On this basis, the nonlinear least squares estimation based on the Levenberg-Marquardt method is applied to estimate the single-axis orientation. A full digital simulation has been carried out to verify the effectiveness and performance of this solution. Finally, the corresponding results are processed and presented minutely.

A Novel Strategy Using Factor Graphs and the Sum-Product Algorithm for Satellite Broadcast Scheduling Problems

Science.gov (United States)

Chen, Jung-Chieh

This paper presents a low complexity algorithmic framework for finding a broadcasting schedule in a low-altitude satellite system, i. e., the satellite broadcast scheduling (SBS) problem, based on the recent modeling and computational methodology of factor graphs. Inspired by the huge success of the low density parity check (LDPC) codes in the field of error control coding, in this paper, we transform the SBS problem into an LDPC-like problem through a factor graph instead of using the conventional neural network approaches to solve the SBS problem. Based on a factor graph framework, the soft-information, describing the probability that each satellite will broadcast information to a terminal at a specific time slot, is exchanged among the local processing in the proposed framework via the sum-product algorithm to iteratively optimize the satellite broadcasting schedule. Numerical results show that the proposed approach not only can obtain optimal solution but also enjoys the low complexity suitable for integral-circuit implementation.

Bernoulli Polynomials, Fourier Series and Zeta Numbers

DEFF Research Database (Denmark)

Scheufens, Ernst E

2013-01-01

Fourier series for Bernoulli polynomials are used to obtain information about values of the Riemann zeta function for integer arguments greater than one. If the argument is even we recover the well-known exact values, if the argument is odd we find integral representations and rapidly convergent...

Asynchronous broadcast for ordered delivery between compute nodes in a parallel computing system where packet header space is limited

Science.gov (United States)

Kumar, Sameer

2010-06-15

Disclosed is a mechanism on receiving processors in a parallel computing system for providing order to data packets received from a broadcast call and to distinguish data packets received at nodes from several incoming asynchronous broadcast messages where header space is limited. In the present invention, processors at lower leafs of a tree do not need to obtain a broadcast message by directly accessing the data in a root processor's buffer. Instead, each subsequent intermediate node's rank id information is squeezed into the software header of packet headers. In turn, the entire broadcast message is not transferred from the root processor to each processor in a communicator but instead is replicated on several intermediate nodes which then replicated the message to nodes in lower leafs. Hence, the intermediate compute nodes become "virtual root compute nodes" for the purpose of replicating the broadcast message to lower levels of a tree.

Cultural Years [SCRIPT 2 of 7]. "Music, the Arts and Society at the time of the Weltausstellung Wien of 1873"\\ud [RADIO SERIES

OpenAIRE

Little, Jonathan D.

1990-01-01

Part of a seven-part radio series broadcast on Sundays at 10:30pm fortnightly from 1st April, 1990. Researched, written, presented and produced by Jonathan David Little for 3MBS-FM Fine Music Melbourne.\\ud \\ud CULTURAL YEARS - Series / Programme Description:\\ud \\ud “Cultural Years” was a seven-part radio series which discussed “Music, the Arts and Society around the time of seven of the great 19th- and 20th-century International Exhibitions” (see below). In examining the ideas which lay behin...

Cultural Years [SCRIPT 1 of 7]. "Music, the Arts and Society at the time of the Great Exhibition of 1851"\\ud [RADIO SERIES

OpenAIRE

Little, Jonathan D.

1990-01-01

Part of a seven-part radio series broadcast on Sundays at 10:30pm fortnightly from 1st April, 1990. Researched, written, presented and produced by Jonathan David Little for 3MBS-FM Fine Music Melbourne.\\ud \\ud CULTURAL YEARS - Series / Programme Description:\\ud \\ud “Cultural Years” was a seven-part radio series which discussed “Music, the Arts and Society around the time of seven of the great 19th- and 20th-century International Exhibitions” (see below). In examining the ideas which lay behin...

Sales plan generation problem on TV broadcasting

OpenAIRE

Özlem Cosgun; İlkay Gultas

2016-01-01

Major advertisers and/or advertisement agencies purchase hundreds of slots during a given broadcast period. Deterministic optimization approaches have been well developed for the problem of meeting client requests. The challenging task for the academic research currently is to address optimization problem under uncertainty. This paper is concerned with the sales plan generation problem when the audience levels of advertisement slots are random variables with known probability distributions. T...

76 FR 62642 - Digital Broadcast Television Redistribution Control; Corrections

Science.gov (United States)

2011-10-11

... Characteristic,'' (July 6, 2010), as listed below: (i) A/53, Part 1:2007, ``Digital Television System'' (January... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 11-1432] Digital Broadcast Television..., Radio, Television. Accordingly, 47 CFR part 73 is corrected by making the following correcting...

Ambiguity Function Analysis and Processing for Passive Radar Based on CDR Digital Audio Broadcasting

Directory of Open Access Journals (Sweden)

Zhang Qiang

2015-01-01

Full Text Available China Digital Radio (CDR broadcasting is a new standard of digital audio broadcasting of FM frequency (87–108 MHz based on our research and development efforts. It is compatible with the frequency spectrum in analog FM radio and satisfies the requirements for smooth transition from analog to digital signal in FM broadcasting in China. This paper focuses on the signal characteristics and processing methods of radio-based passive radar. The signal characteristics and ambiguity function of a passive radar illumination source are analyzed. The adverse effects on the target detection of the side peaks owing to cyclic prefix, the Doppler ambiguity strips because of signal synchronization, and the range of side peaks resulting from the signal discontinuous spectrum are then studied. Finally, methods for suppressing these side peaks are proposed and their effectiveness is verified by simulations.

Toward a Model of Strategic Influence, International Broadcasting, and Global Engagement

Directory of Open Access Journals (Sweden)

Kenneth L. Hacker

2016-05-01

Full Text Available This article explores how strategic communication, public diplomacy, international governmental broadcasting, and social media networking can be brought together in a system of strategic influence and global engagement. The analysis offers a contrasting approach to various views of public diplomacy or strategic communication which privilege one form of governmental influence over others and treat partial aspects of national persuasion as complete pictures of government communication aimed at foreign audiences. Because so much of public diplomacy literature today emphasizes social media, it is necessary to determine how specific tools of influence such as international broadcasting, can be used in ways that fit new thinking in public diplomacy as well as continuously emerging new media ecologies.

Altmark, Article 86(2) and Public Service Broadcasting

DEFF Research Database (Denmark)

Mortensen, Frands

2008-01-01

En analyse af EU-Kommissionens 17 Beslutninger angående statsstøtte til Public Service Broadcasting, der er truffet efter afsigelse af Altmark-dommen i juli 2003. Kommissionen har i alle tilfælde først analyseret om de fire Altmark-krav er opfyldt, og det er aldrig tilfældet. dernæst har den godk...

Exactly averaged equations for flow and transport in random media

International Nuclear Information System (INIS)

Shvidler, Mark; Karasaki, Kenzi

2001-01-01

It is well known that exact averaging of the equations of flow and transport in random porous media can be realized only for a small number of special, occasionally exotic, fields. On the other hand, the properties of approximate averaging methods are not yet fully understood. For example, the convergence behavior and the accuracy of truncated perturbation series. Furthermore, the calculation of the high-order perturbations is very complicated. These problems for a long time have stimulated attempts to find the answer for the question: Are there in existence some exact general and sufficiently universal forms of averaged equations? If the answer is positive, there arises the problem of the construction of these equations and analyzing them. There exist many publications related to these problems and oriented on different applications: hydrodynamics, flow and transport in porous media, theory of elasticity, acoustic and electromagnetic waves in random fields, etc. We present a method of finding the general form of exactly averaged equations for flow and transport in random fields by using (1) an assumption of the existence of Green's functions for appropriate stochastic problems, (2) some general properties of the Green's functions, and (3) the some basic information about the random fields of the conductivity, porosity and flow velocity. We present a general form of the exactly averaged non-local equations for the following cases. 1. Steady-state flow with sources in porous media with random conductivity. 2. Transient flow with sources in compressible media with random conductivity and porosity. 3. Non-reactive solute transport in random porous media. We discuss the problem of uniqueness and the properties of the non-local averaged equations, for the cases with some types of symmetry (isotropic, transversal isotropic, orthotropic) and we analyze the hypothesis of the structure non-local equations in general case of stochastically homogeneous fields. (author)

Cultural Years [SCRIPT 4 of 7]. "Music, the Arts and Society at the time of the Paris Exposition Universelle of 1900"\\ud [RADIO SERIES

OpenAIRE

Little, Jonathan D.

1990-01-01

Part of a seven-part radio series broadcast on Sundays at 10:30pm fortnightly from 1st April, 1990. Researched, written, presented and produced by Jonathan David Little for 3MBS-FM Fine Music Melbourne.\\ud \\ud CULTURAL YEARS - Series / Programme Description:\\ud \\ud “Cultural Years” was a seven-part radio series which discussed “Music, the Arts and Society around the time of seven of the great 19th- and 20th-century International Exhibitions” (see below). In examining the ideas which lay behin...

Cultural Years [SCRIPT 3 of 7]. "Music, the Arts and Society at the time of the Paris Exposition Universelle of 1889"\\ud [RADIO SERIES

OpenAIRE

Little, Jonathan D.

1990-01-01

Part of a seven-part radio series broadcast on Sundays at 10:30pm fortnightly from 1st April, 1990. Researched, written, presented and produced by Jonathan David Little for 3MBS-FM Fine Music Melbourne.\\ud \\ud CULTURAL YEARS - Series / Programme Description:\\ud \\ud “Cultural Years” was a seven-part radio series which discussed “Music, the Arts and Society around the time of seven of the great 19th- and 20th-century International Exhibitions” (see below). In examining the ideas which lay behin...

75 FR 76294 - Radio Broadcasting Services: Pacific Junction, IA

Science.gov (United States)

2010-12-08

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 10-2236; MB Docket No. 10-108] Radio Broadcasting Services: Pacific Junction, IA AGENCY: Federal Communications Commission. ACTION: Final rule. SUMMARY: The staff deletes FM Channel 299C2 at Pacific Junction, Iowa, because the record in this...

77 FR 2242 - Radio Broadcasting Services; Pike Road, AL

Science.gov (United States)

2012-01-17

...] Radio Broadcasting Services; Pike Road, AL AGENCY: Federal Communications Commission. ACTION: Proposed... Corporation, Inc., proposing the allotment of Channel 228A at Pike Road, Alabama, as its second local service. A staff engineering analysis indicates that Channel 228A can be allotted to Pike Road consistent...

77 FR 64792 - Radio Broadcasting Services; Pike Road, AL

Science.gov (United States)

2012-10-23

...] Radio Broadcasting Services; Pike Road, AL AGENCY: Federal Communications Commission. ACTION: Proposed... Corporation, Inc., proposing the allotment of Channel 228A at Pike Road, Alabama, as the community's second local service. A staff engineering analysis indicates that Channel 228A can be allotted to Pike Road...

77 FR 38761 - Radio Broadcasting Services; Pike Road, AL

Science.gov (United States)

2012-06-29

... Broadcasting Services; Pike Road, AL AGENCY: Federal Communications Commission. ACTION: Proposal rule..., Inc., proposing the allotment of Channel 228A at Pike Road, Alabama, as the community's second local... Pike Road allotment. It is the Commission's policy to refrain from making an allotment to a community...

76 FR 5521 - Innovation in the Broadcast Television Bands

Science.gov (United States)

2011-02-01

... broadcasters serving minority, foreign language and niche interests that might have smaller audiences and lower... signals, including those not specifically raised in this NPRM. Improving Reception of VHF TV Service 34... band that can cause interference, and reception of VHF signals requires physically larger antennas that...

Football's coming home?: Digital reterritorialization, contradictions in the transnational coverage of sport and the sociology of alternative football broadcasts.

Science.gov (United States)

David, Matthew; Millward, Peter

2012-06-01

This article critically utilizes the work of Manuel Castells to discuss the issue of parallel imported broadcasts (specifically including live-streams) in football. This is of crucial importance to sport because the English Premier League is premised upon the sale of television rights broadcasts to domestic and overseas markets, and yet cheaper alternative broadcasts endanger the price of such rights. Evidence is drawn from qualitative fieldwork and library/Internet sources to explore the practices of supporters and the politics involved in the generation of alternative broadcasts. This enables us to clarify the core sociological themes of 'milieu of innovation' and 'locale' within today's digitally networked global society. © London School of Economics and Political Science 2012.

Visits to Twenty-Three Villages to Determine the Impact of the Water Series Produced by the Out-of-School TV Department.

Science.gov (United States)

Grant, Stephen; Seya, Pierre Thizier

Data for this analysis of the reactions of animators (facilitators) and villagers to a series of Out of School Television (OSTV--Tele Pour Tous) broadcasts were collected through taped discussions with groups of villagers in their native dialects and separate interviews with animators. Designed to supplement data obtained through questionnaires,…

An exact formula to describe the amplification process in a photomultiplier tube

International Nuclear Information System (INIS)

Rademacker, Jonas

2002-01-01

An analytical function is derived that exactly describes the amplification process due to a series of discrete, Poisson-like amplifications like those in a photo multiplier tube (PMT). A numerical recipe is provided that implements this function as a computer program. It is shown how the program can be used as the core element of a faster, simplified routine to fit PMT spectra with high efficiency. The functionality of the method is demonstrated by fitting both, Monte Carlo generated and measured PMT spectra

Evaluation of Topology-Aware Broadcast Algorithms for Dragonfly Networks

Energy Technology Data Exchange (ETDEWEB)

Dorier, Matthieu; Mubarak, Misbah; Ross, Rob; Li, Jianping Kelvin; Carothers, Christopher D.; Ma, Kwan-Liu

2016-09-12

Two-tiered direct network topologies such as Dragonflies have been proposed for future post-petascale and exascale machines, since they provide a high-radix, low-diameter, fast interconnection network. Such topologies call for redesigning MPI collective communication algorithms in order to attain the best performance. Yet as increasingly more applications share a machine, it is not clear how these topology-aware algorithms will react to interference with concurrent jobs accessing the same network. In this paper, we study three topology-aware broadcast algorithms, including one designed by ourselves. We evaluate their performance through event-driven simulation for small- and large-sized broadcasts (in terms of both data size and number of processes). We study the effect of different routing mechanisms on the topology-aware collective algorithms, as well as their sensitivity to network contention with other jobs. Our results show that while topology-aware algorithms dramatically reduce link utilization, their advantage in terms of latency is more limited.

213 Re-Positioning Nigeria's Radio Broadcast as a Catalyst for ...

African Journals Online (AJOL)

USER

challenge by the Nigeria radio broadcast that needs not waste time to counter the ... revolution in technology has brought radio even closer to Africans than ever before ..... information and better education make people want to change''. (156).

High-Level Topology-Oblivious Optimization of MPI Broadcast Algorithms on Extreme-Scale Platforms

KAUST Repository

Hasanov, Khalid

2014-01-01

There has been a significant research in collective communication operations, in particular in MPI broadcast, on distributed memory platforms. Most of the research works are done to optimize the collective operations for particular architectures by taking into account either their topology or platform parameters. In this work we propose a very simple and at the same time general approach to optimize legacy MPI broadcast algorithms, which are widely used in MPICH and OpenMPI. Theoretical analysis and experimental results on IBM BlueGene/P and a cluster of Grid’5000 platform are presented.

78 FR 71557 - Radio Broadcasting Services; Tohatchi, New Mexico

Science.gov (United States)

2013-11-29

...] Radio Broadcasting Services; Tohatchi, New Mexico AGENCY: Federal Communications Commission. ACTION... Channel 268C2, Tohatchi, New Mexico, as a first local service under the Tribal Priority. A staff... [Amended] 0 2. Section 73.202(b), the Table of FM Allotments under New Mexico, is amended by adding...

75 FR 13681 - Television Broadcasting Services; Atlantic City, NJ

Science.gov (United States)

2010-03-23

...] Television Broadcasting Services; Atlantic City, NJ AGENCY: Federal Communications Commission. ACTION: Final... not less than one very high frequency commercial television channel to each State, if technically... Review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television, Television...

76 FR 44280 - Television Broadcasting Services; El Paso, TX

Science.gov (United States)

2011-07-25

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 11-74; RM-11630, DA 11-1185] Television Broadcasting Services; El Paso, TX AGENCY: Federal Communications Commission. ACTION: Final rule... U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television. Federal Communications...

76 FR 68117 - Television Broadcasting Services; Panama City, FL

Science.gov (United States)

2011-11-03

...] Television Broadcasting Services; Panama City, FL AGENCY: Federal Communications Commission. ACTION: Final rule. SUMMARY: The Commission grants a petition for rulemaking filed by Gray Television Licensee, LLC... the Congressional review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television...

Broadcasting a Common Message with Variable-Length Stop-Feedback codes

DEFF Research Database (Denmark)

Trillingsgaard, Kasper Fløe; Yang, Wei; Durisi, Giuseppe

2015-01-01

We investigate the maximum coding rate achievable over a two-user broadcast channel for the scenario where a common message is transmitted using variable-length stop-feedback codes. Specifically, upon decoding the common message, each decoder sends a stop signal to the encoder, which transmits...... itself in the absence of a square-root penalty in the asymptotic expansion of the maximum coding rate for large blocklengths, a result also known as zero dispersion. In this paper, we show that this speed-up does not necessarily occur for the broadcast channel with common message. Specifically...... continuously until it receives both stop signals. For the point-to-point case, Polyanskiy, Poor, and Verdú (2011) recently demonstrated that variable-length coding combined with stop feedback significantly increases the speed at which the maximum coding rate converges to capacity. This speed-up manifests...

A Study on Fuel Estimation Algorithms for a Geostationary Communication & Broadcasting Satellite

Directory of Open Access Journals (Sweden)

Jong Won Eun

2000-12-01

Full Text Available It has been developed to calculate fuel budget for a geostationary communication and broadcasting satellite. It is quite essential that the pre-launch fuel budget estimation must account for the deterministic transfer and drift orbit maneuver requirements. After on-station, the calculation of satellite lifetime should be based on the estimation of remaining fuel and assessment of actual performance. These estimations step from the proper algorithms to produce the prediction of satellite lifetime. This paper concentrates on the fuel estimation method that was studied for calculation of the propellant budget by using the given algorithms. Applications of this method are discussed for a communication and broadcasting satellite.

Exact piecewise flat gravitational waves

NARCIS (Netherlands)

van de Meent, M.

2011-01-01

We generalize our previous linear result (van de Meent 2011 Class. Quantum Grav 28 075005) in obtaining gravitational waves from our piecewise flat model for gravity in 3+1 dimensions to exact piecewise flat configurations describing exact planar gravitational waves. We show explicitly how to

Retrieving relevant and interesting tweets during live television broadcasts

NARCIS (Netherlands)

Kaptein, R.; Zhu, Y.; Koot, G.; Redi, J.; Niamut, O.

2015-01-01

The use of social TV applications to enhance the experience of live event broadcasts has become an increasingly common practice. An event profile, defined as a set of keywords relevant to an event, can help to track messages related to these events on social networks. We propose an event profiler

76 FR 49697 - Television Broadcasting Services; Eau Claire, WI

Science.gov (United States)

2011-08-11

...] Television Broadcasting Services; Eau Claire, WI AGENCY: Federal Communications Commission. ACTION: Final rule. SUMMARY: The Commission has before it a petition for rulemaking filed by Gray Television Licensee... the Congressional review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television...

75 FR 13236 - Television Broadcasting Services; Oklahoma City, OK

Science.gov (United States)

2010-03-19

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [DA 10-395; MB Docket No. 10-19; RM-11589] Television Broadcasting Services; Oklahoma City, OK AGENCY: Federal Communications Commission. ACTION: Final... review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television, Television...

A Tree Based Broadcast Scheme for (m, k)-firm Real-Time Stream in Wireless Sensor Networks.

Science.gov (United States)

Park, HoSung; Kim, Beom-Su; Kim, Kyong Hoon; Shah, Babar; Kim, Ki-Il

2017-11-09

Recently, various unicast routing protocols have been proposed to deliver measured data from the sensor node to the sink node within the predetermined deadline in wireless sensor networks. In parallel with their approaches, some applications demand the specific service, which is based on broadcast to all nodes within the deadline, the feasible real-time traffic model and improvements in energy efficiency. However, current protocols based on either flooding or one-to-one unicast cannot meet the above requirements entirely. Moreover, as far as the authors know, there is no study for the real-time broadcast protocol to support the application-specific traffic model in WSN yet. Based on the above analysis, in this paper, we propose a new ( m , k )-firm-based Real-time Broadcast Protocol (FRBP) by constructing a broadcast tree to satisfy the ( m , k )-firm, which is applicable to the real-time model in resource-constrained WSNs. The broadcast tree in FRBP is constructed by the distance-based priority scheme, whereas energy efficiency is improved by selecting as few as nodes on a tree possible. To overcome the unstable network environment, the recovery scheme invokes rapid partial tree reconstruction in order to designate another node as the parent on a tree according to the measured ( m , k )-firm real-time condition and local states monitoring. Finally, simulation results are given to demonstrate the superiority of FRBP compared to the existing schemes in terms of average deadline missing ratio, average throughput and energy consumption.

TV Broadcast Efficiency in 5G Networks from Subscriber Prospective

KAUST Repository

Lau, Chun Pong; Shihada, Basem

2015-01-01

measuring the efficiency of a system. These metrics assess the net bitrate for a unit of spectrum bandwidth. However, there is a lack of measurement, quantifying the effectiveness of a broadcasting strategy from the user perspective. In this paper, we

Stochastic B-series and order conditions for exponential integrators

DEFF Research Database (Denmark)

Arara, Alemayehu Adugna; Debrabant, Kristian; Kværnø, Anne

2018-01-01

We discuss stochastic differential equations with a stiff linear part and their approximation by stochastic exponential integrators. Representing the exact and approximate solutions using B-series and rooted trees, we derive the order conditions for stochastic exponential integrators. The resulting...

Management, restructuring and industrial relations : organizational change within the United Kingdom broadcasting industry, 1979-2002

OpenAIRE

Quinn, Brian J.

2007-01-01

In the past decade researchers began to remedy a literature deficit in the study of broadcasting institutions – addressing in particular the issues of labour process, restructuring and industrial relations. This thesis which considers management change, industrial relations and restructuring within the United Kingdom (‘UK’) broadcasting industry employs a case study format with a view to highlighting the variations of industry (macro) and firm (micro) based restructuring. Organizational chang...

Exact solitary waves of the Fisher equation

International Nuclear Information System (INIS)

Kudryashov, Nikolai A.

2005-01-01

New method is presented to search exact solutions of nonlinear differential equations. This approach is used to look for exact solutions of the Fisher equation. New exact solitary waves of the Fisher equation are given

47 CFR 27.63 - Disturbance of AM broadcast station antenna patterns.

Science.gov (United States)

2010-10-01

... immediate vicinity of AM broadcast stations are responsible for measures necessary to correct disturbance of... the FCC for the AM station, if the disturbance occurred as a result of such construction or...

Stochastic resonances in a distributed genetic broadcasting system: the NFκB/IκB paradigm.

Science.gov (United States)

Wang, Zhipeng; Potoyan, Davit A; Wolynes, Peter G

2018-01-01

Gene regulatory networks must relay information from extracellular signals to downstream genes in an efficient, timely and coherent manner. Many complex functional tasks such as the immune response require system-wide broadcasting of information not to one but to many genes carrying out distinct functions whose dynamical binding and unbinding characteristics are widely distributed. In such broadcasting networks, the intended target sites are also often dwarfed in number by the even more numerous non-functional binding sites. Taking the genetic regulatory network of NF κ B as an exemplary system we explore the impact of having numerous distributed sites on the stochastic dynamics of oscillatory broadcasting genetic networks pointing out how resonances in binding cycles control the network's specificity and performance. We also show that active kinetic regulation of binding and unbinding through molecular stripping of DNA bound transcription factors can lead to a higher coherence of gene-co-expression and synchronous clearance. © 2018 The Author(s).

Semiclassical versus exact quantization of the Sinh-Gordon model

Energy Technology Data Exchange (ETDEWEB)

Grossehelweg, Juliane

2009-12-15

In this work we investigate the semiclassics of the Sinh-Gordon model. The Sinh-Gordon model is integrable, its explicit solutions of the classical and the quantum model are well known. This allows for a comprehensive investigation of the semiclassical quantization of the classical model as well as of the semiclassical limit of the exact quantum solution. Semiclassical means in this case that the key objects of quantum theory are constructed as formal power series. A quantity playing an important role in the quantum theory is the Q-function. The purpose of this work is to investigate to what extend the classical integrability of the model admits of a construction of the semiclassical expansion of the Q-function. Therefore we used two conceptual independent approaches. In the one approach we start from the exact nonperturbative solution of the quantum model and calculate the semiclassical limit up to the next to leading order. Thereby we found the spectral curve, as well as the semiclassical expansion of the Q-function and of the eigenvalue of the monodromy matrix. In the other approach we constructed the first two orders of the semiclassical expansion of the Q-function, starting from the classical solution theory. The results of both approaches coincide. (orig.)

Reinventing public service broadcasting in Europe: prospects, promises and problems

NARCIS (Netherlands)

Bardoel, J.L.H.; d'Haenens, L.S.J.

2008-01-01

New information technologies, liberalizing policies and rapidly changing societies – from mono- to multicultural – entail serious consequences for the prospects of European public service broadcasters in a network society. The European concept of PSB as a comprehensive and universal service is

CONDITIONS FOR EXACT CAVALIERI ESTIMATION

Directory of Open Access Journals (Sweden)

Mónica Tinajero-Bravo

2014-03-01

Full Text Available Exact Cavalieri estimation amounts to zero variance estimation of an integral with systematic observations along a sampling axis. A sufficient condition is given, both in the continuous and the discrete cases, for exact Cavalieri sampling. The conclusions suggest improvements on the current stereological application of fractionator-type sampling.

47 CFR 22.371 - Disturbance of AM broadcast station antenna patterns.

Science.gov (United States)

2010-10-01

... construct or modify towers in the immediate vicinity of AM broadcast stations are responsible for measures... radiation parameters specified by the FCC for the AM station, if the disturbance occurred as a result of...

[HYGIENIC ASSESSMENT OF WORKING CONDITIONS OF EMPLOYEES OF BROADCASTING CENTER].

Science.gov (United States)

Kovalenko, A V; Brusentsova, A V; Sokhoshko, I A; Rostikov, V P

2015-01-01

Hygienic assessment of working conditions of employees of the Omsk Regional Broadcasting Centre was performed on data of the analysis of materials of certification of workplaces. There were examined materials concerning 65 core profile workplaces, where 130 persons, including 35 women work. There was determined health risk for personnel in dependence on working conditions. The staff was noted to be exposed to the adverse impact of the following factors: chemical, physical (noise, general and local vibration, non-ionizing radiation, microclimate, lighting), severity and intensity ofwork. Class working conditions for 13,5% of workplaces on noise, 35.4% on non-ionizing radiation was assessed as a harmful of the first degree. Lightness indices at 78.5% of the workplaces did not meet the requirements of sanitary norms. At 7.7% of the workplaces levels of hardness of labor were assessed as harmful. The impact of such factors as biological, infrasound, ultrasound, ionizing radiation, aerosols with mainly fibrogenic action, was absent, their assessment was not carried out. Working conditions at 83.1% of workplaces were characterized as hazardous, including at 52.3% of the workplaces where there was established hazard class 3.1, at 30.7% of workplaces--Class 3.2. Among all the factors of occupational environment the largest contribution into the overall assessment of working conditions was made by the lightness factor (50.9%) and non-ionizing radiation (20.6%). The most harmful working conditions have been identified for workplaces of the operator of masthead antenna, engineer of radiocommunications, broadcasting and television, electromechanician of television (radiocommunication), (broadcasting), car driver.

Exact solutions to chaotic and stochastic systems

Science.gov (United States)

González, J. A.; Reyes, L. I.; Guerrero, L. E.

2001-03-01

We investigate functions that are exact solutions to chaotic dynamical systems. A generalization of these functions can produce truly random numbers. For the first time, we present solutions to random maps. This allows us to check, analytically, some recent results about the complexity of random dynamical systems. We confirm the result that a negative Lyapunov exponent does not imply predictability in random systems. We test the effectiveness of forecasting methods in distinguishing between chaotic and random time series. Using the explicit random functions, we can give explicit analytical formulas for the output signal in some systems with stochastic resonance. We study the influence of chaos on the stochastic resonance. We show, theoretically, the existence of a new type of solitonic stochastic resonance, where the shape of the kink is crucial. Using our models we can predict specific patterns in the output signal of stochastic resonance systems.

Travel Series as TV Entertainment: Genre characteristics and touristic views on foreign countries

Directory of Open Access Journals (Sweden)

Anne Marit Waade

2009-04-01

Full Text Available Why is it not the deprived developing country, but rather the tempting destination the host arrives in when guiding the audience in a travel series? And how can we explore the specific combination of entertainment and education that travel series represent? Basically the travel series genre is a hybrid of journalistic documentary, entertaining lifestyle series and TV ads and the different series put different emphasis on the different genre elements. Travel series represent a certain kind of mediated consumption and they reflect lifestyle identity in relation to touristic consumer cultures. Like other lifestyle series dealing with consumption products and lifestyle markers encompassing fashion, food, garden, design and interior that balance somewhere between journalism and advertising, travel series typically deal with destinations, travel modes, cultural experiences and food as commodities. To understand the cultural and democratic value of travel series as a popular TV genre in the context of public service broadcasting, it is not the fact that the series contain educative and enlightening information about foreign cultures told in an entertaining and popular way that are of my interest. Rather it is tourism and media consumer culture as such, one has to expound as valuable democratic and cultural practice. The article presents different matrices of the respectively cultural and consumer knowledge that the different types of travel series include.

A low-cost transportable ground station for capture and processing of direct broadcast EOS satellite data

Science.gov (United States)

Davis, Don; Bennett, Toby; Short, Nicholas M., Jr.

1994-01-01

The Earth Observing System (EOS), part of a cohesive national effort to study global change, will deploy a constellation of remote sensing spacecraft over a 15 year period. Science data from the EOS spacecraft will be processed and made available to a large community of earth scientists via NASA institutional facilities. A number of these spacecraft are also providing an additional interface to broadcast data directly to users. Direct broadcast of real-time science data from overhead spacecraft has valuable applications including validation of field measurements, planning science campaigns, and science and engineering education. The success and usefulness of EOS direct broadcast depends largely on the end-user cost of receiving the data. To extend this capability to the largest possible user base, the cost of receiving ground stations must be as low as possible. To achieve this goal, NASA Goddard Space Flight Center is developing a prototype low-cost transportable ground station for EOS direct broadcast data based on Very Large Scale Integration (VLSI) components and pipelined, multiprocessing architectures. The targeted reproduction cost of this system is less than $200K. This paper describes a prototype ground station and its constituent components.

Shannon Meets Fick on the Microfluidic Channel: Diffusion Limit to Sum Broadcast Capacity for Molecular Communication.

Science.gov (United States)

Bicen, A Ozan; Lehtomaki, Janne J; Akyildiz, Ian F

2018-03-01

Molecular communication (MC) over a microfluidic channel with flow is investigated based on Shannon's channel capacity theorem and Fick's laws of diffusion. Specifically, the sum capacity for MC between a single transmitter and multiple receivers (broadcast MC) is studied. The transmitter communicates by using different types of signaling molecules with each receiver over the microfluidic channel. The transmitted molecules propagate through microfluidic channel until reaching the corresponding receiver. Although the use of different types of molecules provides orthogonal signaling, the sum broadcast capacity may not scale with the number of the receivers due to physics of the propagation (interplay between convection and diffusion based on distance). In this paper, the performance of broadcast MC on a microfluidic chip is characterized by studying the physical geometry of the microfluidic channel and leveraging the information theory. The convergence of the sum capacity for microfluidic broadcast channel is analytically investigated based on the physical system parameters with respect to the increasing number of molecular receivers. The analysis presented here can be useful to predict the achievable information rate in microfluidic interconnects for the biochemical computation and microfluidic multi-sample assays.

Topology-oblivious optimization of MPI broadcast algorithms on extreme-scale platforms

KAUST Repository

Hasanov, Khalid

2015-11-01

© 2015 Elsevier B.V. All rights reserved. Significant research has been conducted in collective communication operations, in particular in MPI broadcast, on distributed memory platforms. Most of the research efforts aim to optimize the collective operations for particular architectures by taking into account either their topology or platform parameters. In this work we propose a simple but general approach to optimization of the legacy MPI broadcast algorithms, which are widely used in MPICH and Open MPI. The proposed optimization technique is designed to address the challenge of extreme scale of future HPC platforms. It is based on hierarchical transformation of the traditionally flat logical arrangement of communicating processors. Theoretical analysis and experimental results on IBM BlueGene/P and a cluster of the Grid\\'5000 platform are presented.

Exact results for survival probability in the multistate Landau-Zener model

International Nuclear Information System (INIS)

Volkov, M V; Ostrovsky, V N

2004-01-01

An exact formula is derived for survival probability in the multistate Landau-Zener model in the special case where the initially populated state corresponds to the extremal (maximum or minimum) slope of a linear diabatic potential curve. The formula was originally guessed by S Brundobler and V Elzer (1993 J. Phys. A: Math. Gen. 26 1211) based on numerical calculations. It is a simple generalization of the expression for the probability of diabatic passage in the famous two-state Landau-Zener model. Our result is obtained via analysis and summation of the entire perturbation theory series

Exact solutions for rotating charged dust

International Nuclear Information System (INIS)

Islam, J.N.

1984-01-01

Earlier work by the author on rotating charged dust is summarized. An incomplete class of exact solutions for differentially rotating charged dust in Newton-Maxwell theory for the equal mass and charge case that was found earlier is completed. A new global exact solution for cylindrically symmetric differentially rotating charged dust in Newton-Maxwell theory is presented. Lastly, a new exact solution for cylindrically symmetric rigidly rotating charged dust in general relativity is given. (author)

How to Write News for Broadcast and Print Media.

Science.gov (United States)

Dary, David

This book is a primer on the techniques of news writing and the application of those principles to print and broadcast journalism. Chapters include: "The News Media," which presents a brief history of journalism and the foundations on which it is based; "What Is News?"; "Gathering News," which discusses news beats, reporters' qualifications, and…

Resource development and experiments in automatic SA broadcast news transcription

CSIR Research Space (South Africa)

Kamper, H

2012-05-01

Full Text Available development purposes: a 20 hour corpus of South African English (SAE) broadcast news, a 109M word corpus of South African newspaper text collected for language modelling purposes, and a 60k word SAE pronunciation dictionary. The development of our system...

76 FR 56657 - Unlicensed Operation in the TV Broadcast Bands

Science.gov (United States)

2011-09-14

...-174] Unlicensed Operation in the TV Broadcast Bands AGENCY: Federal Communications Commission. ACTION... collection requirements contained in the regulations for issues relating to the unlicensed use of the TV bands (TV White Space). The information collection requirements were approved on September 7, 2011 by...

Towards Reliable Multi-Hop Broadcast in VANETs: An Analytical Approach

NARCIS (Netherlands)

Gholibeigi, Mozhdeh; Baratchi, Mitra; van den Berg, Hans Leo; Heijenk, Geert

2016-01-01

Intelligent Transportation Systems in the domain of vehicular networking, have recently been subject to rapid development. In vehicular ad hoc networks, data broadcast is one of the main communication types and its reliability is crucial for high performance applications. However, due to the lack of

Towards reliable multi-hop broadcast in VANETs : An analytical approach

NARCIS (Netherlands)

Gholibeigi, M.; Baratchi, M.; Berg, J.L. van den; Heijenk, G.

2017-01-01

Intelligent Transportation Systems in the domain of vehicular networking, have recently been subject to rapid development. In vehicular ad hoc networks, data broadcast is one of the main communication types and its reliability is crucial for high performance applications. However, due to the lack of

The Status of Broadcast Education in Institutions of Higher Learning.

Science.gov (United States)

Elmore, Garland C.

1983-01-01

Surveyed different departments that offer undergraduate degrees in radio-television-film. Compared (1) philosophies; (2) semester hours offered and required in radio-television-film; (3) faculty qualifications; (4) dollars invested in equipment and training facilities; and (5) student enrollment degree data. Departments included broadcasting,…

Bluetooth Broadcasting : How far can we go? An experimental study

NARCIS (Netherlands)

Aiello, Marco; Jong, Remko de; Nes, Joel de

2009-01-01

Bluetooth is a wireless communication technology to build small networks of devices. It was designed as a cable replacement technology. Given its widespread adoption, especially in mobile devices, new uses are possible today. For instance, one can broadcast messages to nomadic users based on their

Automated quality control in a file-based broadcasting workflow

Science.gov (United States)

Zhang, Lina

2014-04-01

Benefit from the development of information and internet technologies, television broadcasting is transforming from inefficient tape-based production and distribution to integrated file-based workflows. However, no matter how many changes have took place, successful broadcasting still depends on the ability to deliver a consistent high quality signal to the audiences. After the transition from tape to file, traditional methods of manual quality control (QC) become inadequate, subjective, and inefficient. Based on China Central Television's full file-based workflow in the new site, this paper introduces an automated quality control test system for accurate detection of hidden troubles in media contents. It discusses the system framework and workflow control when the automated QC is added. It puts forward a QC criterion and brings forth a QC software followed this criterion. It also does some experiments on QC speed by adopting parallel processing and distributed computing. The performance of the test system shows that the adoption of automated QC can make the production effective and efficient, and help the station to achieve a competitive advantage in the media market.

Information-theoretic limitations on approximate quantum cloning and broadcasting

Science.gov (United States)

Lemm, Marius; Wilde, Mark M.

2017-07-01

We prove quantitative limitations on any approximate simultaneous cloning or broadcasting of mixed states. The results are based on information-theoretic (entropic) considerations and generalize the well-known no-cloning and no-broadcasting theorems. We also observe and exploit the fact that the universal cloning machine on the symmetric subspace of n qudits and symmetrized partial trace channels are dual to each other. This duality manifests itself both in the algebraic sense of adjointness of quantum channels and in the operational sense that a universal cloning machine can be used as an approximate recovery channel for a symmetrized partial trace channel and vice versa. The duality extends to give control of the performance of generalized universal quantum cloning machines (UQCMs) on subspaces more general than the symmetric subspace. This gives a way to quantify the usefulness of a priori information in the context of cloning. For example, we can control the performance of an antisymmetric analog of the UQCM in recovering from the loss of n -k fermionic particles.

A Tree Based Broadcast Scheme for (m, k-firm Real-Time Stream in Wireless Sensor Networks

Directory of Open Access Journals (Sweden)

HoSung Park

2017-11-01

Full Text Available Recently, various unicast routing protocols have been proposed to deliver measured data from the sensor node to the sink node within the predetermined deadline in wireless sensor networks. In parallel with their approaches, some applications demand the specific service, which is based on broadcast to all nodes within the deadline, the feasible real-time traffic model and improvements in energy efficiency. However, current protocols based on either flooding or one-to-one unicast cannot meet the above requirements entirely. Moreover, as far as the authors know, there is no study for the real-time broadcast protocol to support the application-specific traffic model in WSN yet. Based on the above analysis, in this paper, we propose a new (m, k-firm-based Real-time Broadcast Protocol (FRBP by constructing a broadcast tree to satisfy the (m, k-firm, which is applicable to the real-time model in resource-constrained WSNs. The broadcast tree in FRBP is constructed by the distance-based priority scheme, whereas energy efficiency is improved by selecting as few as nodes on a tree possible. To overcome the unstable network environment, the recovery scheme invokes rapid partial tree reconstruction in order to designate another node as the parent on a tree according to the measured (m, k-firm real-time condition and local states monitoring. Finally, simulation results are given to demonstrate the superiority of FRBP compared to the existing schemes in terms of average deadline missing ratio, average throughput and energy consumption.

A Novel Geo-Broadcast Algorithm for V2V Communications over WSN

Directory of Open Access Journals (Sweden)

José J. Anaya

2014-08-01

Full Text Available The key for enabling the next generation of advanced driver assistance systems (ADAS, the cooperative systems, is the availability of vehicular communication technologies, whose mandatory installation in cars is foreseen in the next few years. The definition of the communications is in the final step of development, with great efforts on standardization and some field operational tests of network devices and applications. However, some inter-vehicular communications issues are not sufficiently developed and are the target of research. One of these challenges is the construction of stable networks based on the position of the nodes of the vehicular network, as well as the broadcast of information destined to nodes concentrated in a specific geographic area without collapsing the network. In this paper, a novel algorithm for geo-broadcast communications is presented, based on the evolution of previous results in vehicular mesh networks using wireless sensor networks with IEEE 802.15.4 technology. This algorithm has been designed and compared with the IEEE 802.11p algorithms, implemented and validated in controlled conditions and tested on real vehicles. The results suggest that the characteristics of the designed broadcast algorithm can improve any vehicular communications architecture to complement a geo-networking functionality that supports a variety of ADAS.

Public service broadcasting (PSB regulation in Indonesia: Between market and public interest

Directory of Open Access Journals (Sweden)

Masduki

2017-01-01

Full Text Available The reform of public service broadcasting (PSB faces many obstacles in countries with political transition such as Indonesia. After 1998-political change, the arrival of ideas to establish PSB in Indonesia in two decades lacks of appropriate policies. As in other transitional states in Eastern Europe, there is the lack of regulatory design as well as its implementation. This paper examines process of formulating PSB law in 2002, particularly pays attention to industry capture over the making process as a critical tool to observe a long-controvercial of broadcasting law revision process in Indonesia (2012-2016. By use public interest and capture theories in regulation, this paper answers why the outcome of PSB regulation is weak by observing how the law was made. This study provides new analysis on PSB media law that still rare in Indonesia. As independent and non-profit body, Indonesian PSB represented by RRI (Radio of the Republic Indonesia and TVRI (Television of the Republic Indonesia is protected by Broadcasting Act.32/2002. It was enacted in favor of two actors: authoritarian officials with interest to use PSB as their mouthpiece in one side and the industry groups with interest to apply free market policy on the other.

PRESENTATION OF VIOLENCE IN L OVE THEMED TV SERIES IN TURKE Y

Directory of Open Access Journals (Sweden)

Çiğdem TAŞ ALİCENAP

2013-06-01

Full Text Available Violence is an inseparable part of our lives. Mass media is the public domain in which the violence is widely presented. Among all the mass media mediums which have numerous functions in our daily lives such as informing, entertaining, educating, etc.; television, without a doubt, takes the highest amount of time. In recent years, the number of television series on channels has increased and the fact of violence has been presented in these programs. Here in this research it has been questioned whether physical, psychological and verbal violence are used in love-themed TV series or not; and if yes, it has been questioned who is inflicting violence towards whom. In this context four love-themed TV series which were broadcasted in four Turkish channels with the highest rating record between the years of 2006 and 2010 were studied by using content analysis method in accordance with the violence categories. The data gathered by the analysis has shown that not only the series based on action; but also the series based on human affairs such as family, friendship, love, etc. include violence.

Cultural Years [SCRIPT 6 of 7]. "Music, the Arts and Society at the time of the Expositión Internacional de Barcelona in 1929"\\ud [RADIO SERIES

OpenAIRE

Little, Jonathan D.

1990-01-01

Part of a seven-part radio series broadcast on Sundays at 10:30pm fortnightly from 1st April, 1990. Researched, written, presented and produced by Jonathan David Little for 3MBS-FM Fine Music Melbourne.\\ud \\ud CULTURAL YEARS - Series / Programme Description:\\ud \\ud “Cultural Years” was a seven-part radio series which discussed “Music, the Arts and Society around the time of seven of the great 19th- and 20th-century International Exhibitions” (see below). In examining the ideas which lay behin...

Reliable Multihop Broadcast Protocol with a Low-Overhead Link Quality Assessment for ITS Based on VANETs in Highway Scenarios

Directory of Open Access Journals (Sweden)

Alejandro Galaviz-Mosqueda

2014-01-01

Full Text Available Vehicular ad hoc networks (VANETs have been identified as a key technology to enable intelligent transport systems (ITS, which are aimed to radically improve the safety, comfort, and greenness of the vehicles in the road. However, in order to fully exploit VANETs potential, several issues must be addressed. Because of the high dynamic of VANETs and the impairments in the wireless channel, one key issue arising when working with VANETs is the multihop dissemination of broadcast packets for safety and infotainment applications. In this paper a reliable low-overhead multihop broadcast (RLMB protocol is proposed to address the well-known broadcast storm problem. The proposed RLMB takes advantage of the hello messages exchanged between the vehicles and it processes such information to intelligently select a relay set and reduce the redundant broadcast. Additionally, to reduce the hello messages rate dependency, RLMB uses a point-to-zone link evaluation approach. RLMB performance is compared with one of the leading multihop broadcast protocols existing to date. Performance metrics show that our RLMB solution outperforms the leading protocol in terms of important metrics such as packet dissemination ratio, overhead, and delay.

Broadcasting in Iceland: Cultural Protectionism and U.S. Influence.

Science.gov (United States)

Hudson, Tim

Icelanders are a highly literate people, their culture tied together by perhaps the most complete written tradition of any modern nation. No wonder, then, that the tiny island country seemed in no rush to develop a television broadcasting system. Indeed, it is questionable whether television would have been in demand at all if not for outside…

Synchronous Design and Test of Distributed Passive Radar Systems Based on Digital Broadcasting and Television

Directory of Open Access Journals (Sweden)

Wan Xianrong

2017-02-01

Full Text Available Digital broadcasting and television are important classes of illuminators of opportunity for passive radars. Distributed and multistatic structure are the development trends for passive radars. Most modern digital broadcasting and television systems work on a network, which not only provides a natural condition to distributed passive radar but also puts forward higher requirements on the design of passive radar systems. Among those requirements, precise synchronization among the receivers and transmitters as well as among multiple receiving stations, which mainly involves frequency and time synchronization, is the first to be solved. To satisfy the synchronization requirements of distributed passive radars, a synchronization scheme based on GPS is presented in this paper. Moreover, an effective scheme based on the China Mobile Multimedia Broadcasting signal is proposed to test the system synchronization performance. Finally, the reliability of the synchronization design is verified via the distributed multistatic passive radar experiments.

The role of broadcasting regulation in shaping the recent history of Serbian culture (1944-1990

Directory of Open Access Journals (Sweden)

Mllutinović Irina

2014-01-01

Full Text Available Determining the traditional electronic media - radio and television as cultural artifacts, the paper gives their genesis, beginning with the period immediately after the liberation of Belgrade (the end of the Second World War, through the period of self-management socialism, to the beginning of the nineties of the previous century. The subject of this paper is related to the specifics of the development of broadcasting in the historical and political epoch, seen in the broader social context outlined by mutually intertwined political, legal, economic and other characteristics of the epoch. The historical, descriptive, analytical and comparative methods have been applied, in order to test the working hypothesis about the effective impact of broadcasting regulation in the shaping and creation of distinct factors of a national culture in the observed social and historical period. The primary objective of the research was to show the characteristics of the regulation model of broadcasting in the period of self-management socialism, the quality of regulatory measures, and the cultural effects achieved in the observed social and historical circumstances. It was found that the observed period was characterized by rigid state intervention in the development of radio and television, determined and formulated from the perspective of the dominant ideological paradigm, and anachronistic in relation to contemporary broadcasting standards that are established in the regulations of the countries with the developed democracies. In addition, the results of the research show that in the observed period, radio and television did not only establish the basis for the development of modern broadcasting and the creation of a distinctive national cultural identity, but also, through a variety of program formats, enriched and gave a profile to the historical development of Serbian culture as its significant factor.

47 CFR 76.1601 - Deletion or repositioning of broadcast signals.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 4 2010-10-01 2010-10-01 false Deletion or repositioning of broadcast signals... RADIO SERVICES MULTICHANNEL VIDEO AND CABLE TELEVISION SERVICE Notices § 76.1601 Deletion or... to § 76.1601: No deletion or repositioning of a local commercial television station shall occur...

76 FR 68124 - Television Broadcasting Services; Fond du Lac, WI

Science.gov (United States)

2011-11-03

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 09-115, RM-11543; DA 11-1502] Television Broadcasting Services; Fond du Lac, WI AGENCY: Federal Communications Commission. ACTION: Proposed rule. SUMMARY: In this document, the Commission denies a petition for reconsideration of an August 12...

Exact Solutions of a High-Order Nonlinear Wave Equation of Korteweg-de Vries Type under Newly Solvable Conditions

Directory of Open Access Journals (Sweden)

Weiguo Rui

2014-01-01

Full Text Available By using the integral bifurcation method together with factoring technique, we study a water wave model, a high-order nonlinear wave equation of KdV type under some newly solvable conditions. Based on our previous research works, some exact traveling wave solutions such as broken-soliton solutions, periodic wave solutions of blow-up type, smooth solitary wave solutions, and nonsmooth peakon solutions within more extensive parameter ranges are obtained. In particular, a series of smooth solitary wave solutions and nonsmooth peakon solutions are obtained. In order to show the properties of these exact solutions visually, we plot the graphs of some representative traveling wave solutions.

47 CFR 1.572 - Processing TV broadcast and translator station applications.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 1 2010-10-01 2010-10-01 false Processing TV broadcast and translator station applications. 1.572 Section 1.572 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL PRACTICE AND... and translator station applications. See § 73.3572. ...

47 CFR 1.573 - Processing FM broadcast and translator station applications.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 1 2010-10-01 2010-10-01 false Processing FM broadcast and translator station applications. 1.573 Section 1.573 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL PRACTICE AND... and translator station applications. See § 73.3573. ...

RSS based CERN Alerter. Information broadcast to all CERN offices.

CERN Multimedia

Otto, R

2007-01-01

Nearly every large organization uses a tool to broadcast messages and information across the internal campus (messages like alerts announcing interruption in services or just information about upcoming events). These tools typically allow administrators (operators) to send "targeted" messages which are sent only to specific groups of users or computers, e/g only those located in a specified building or connected to a particular computing service. CERN has a long history of such tools: CERNVMS€™s SPM_quotMESSAGE command, Zephyr and the most recent the NICE Alerter based on the NNTP protocol. The NICE Alerter used on all Windows-based computers had to be phased out as a consequence of phasing out NNTP at CERN. The new solution to broadcast information messages on the CERN campus continues to provide the service based on cross-platform technologies, hence minimizing custom developments and relying on commercial software as much as possible. The new system, called CERN Alerter, is based on RSS (Really Simpl...

How broadcast volume and emotional content affect youth recall of anti-tobacco advertising.

Science.gov (United States)

Biener, Lois; Wakefield, Melanie; Shiner, Cecilia M; Siegel, Michael

2008-07-01

Televised anti-tobacco advertising has been shown to be effective for discouraging smoking initiation; however, purchasing broadcasting time is very costly. This study investigated the relative impact of the broadcast volume (media weight) and the emotional content of an ad as predictors of advertising recall. The data come from a random-digit-dialed survey conducted in 2001 and 2002 of 3863 youth aged 12-17. Media weight was based on commercial TV ratings data. The emotional intensity of advertisements was derived from the ratings made by independent youth judges. Data analyses were conducted between 2005 and 2007. Results indicated that media weight was a significant predictor of recall, but the emotional content of the ad was an even stronger predictor. Also, ads low in emotional intensity required more media weight than those high in emotional intensity to achieve the same amount of increase in recall. This study extends prior research that highlights the importance of emotional intensity for effective anti-tobacco advertising. It also indicates that, relative to unemotional advertisements, emotionally arousing advertisements require fewer broadcasts to achieve the same level of recall, and hence are likely to be less costly to a public health campaign.

Some exact results for the two-point function of an integrable quantum field theory

International Nuclear Information System (INIS)

Creamer, D.B.; Thacker, H.B.; Wilkinson, D.

1981-01-01

The two-point correlation function for the quantum nonlinear Schroedinger (one-dimensional delta-function gas) model is studied. An infinite-series representation for this function is derived using the quantum inverse-scattering formalism. For the case of zero temperature, the infinite-coupling (c→infinity) result of Jimbo, Miwa, Mori, and Sato is extended to give an exact expression for the order-1/c correction to the two-point function in terms of a Painleve transcendent of the fifth kind

Some exact results for the two-point function of an integrable quantum field theory

International Nuclear Information System (INIS)

Creamer, D.B.; Thacker, H.B.; Wilkinson, D.

1981-02-01

The two point correlation function for the quantum nonlinear Schroedinger (delta-function gas) model is studied. An infinite series representation for this function is derived using the quantum inverse scattering formalism. For the case of zero temperature, the infinite coupling (c → infinity) result of Jimbo, Miwa, Mori and Sato is extended to give an exact expression for the order 1/c correction to the two point function in terms of a Painleve transcendent of the fifth kind

Cultural Years [SCRIPT 5 of 7]. "Music, the Arts and Society to the eve of the First World War (Exposition Universelle et Industrielle, Ghent - 1913)"\\ud [RADIO SERIES

OpenAIRE

Little, Jonathan D.

1990-01-01

Part of a seven-part radio series broadcast on Sundays at 10:30pm fortnightly from 1st April, 1990. Researched, written, presented and produced by Jonathan David Little for 3MBS-FM Fine Music Melbourne.\\ud \\ud CULTURAL YEARS - Series / Programme Description:\\ud \\ud “Cultural Years” was a seven-part radio series which discussed “Music, the Arts and Society around the time of seven of the great 19th- and 20th-century International Exhibitions” (see below). In examining the ideas which lay behin...

Performance Evaluation and Parameter Optimization of SoftCast Wireless Video Broadcast

Directory of Open Access Journals (Sweden)

Dongxue Yang

2015-08-01

Full Text Available Wireless video broadcast plays an imp ortant role in multimedia communication with the emergence of mobile video applications. However, conventional video broadcast designs suffer from a cliff effect due to separated source and channel encoding. The newly prop osed SoftCast scheme employs a cross-layer design, whose reconstructed video quality is prop ortional to the channel condition. In this pap er, we provide the p erformance evaluation and the parameter optimization of the SoftCast system. Optimization principles on parameter selection are suggested to obtain a b etter video quality, o ccupy less bandwidth and/or utilize lower complexity. In addition, we compare SoftCast with H.264 in the LTE EPA scenario. The simulation results show that SoftCast provides a b etter p erformance in the scalability to channel conditions and the robustness to packet losses.

47 CFR 73.801 - Broadcast regulations applicable to LPFM stations.

Science.gov (United States)

2010-10-01

....333Engineering charts. Section 73.503Licensing requirements and service. Section 73.508Standards of good... of taped, filmed, or recorded material. Section 73.1210TV/FM dual-language broadcasting in Puerto....3568Dismissal of applications. Section 73.3584Procedure for filing petitions to deny. Section 73.3587Procedure...

A new generalized expansion method and its application in finding explicit exact solutions for a generalized variable coefficients KdV equation

International Nuclear Information System (INIS)

Sabry, R.; Zahran, M.A.; Fan Engui

2004-01-01

A generalized expansion method is proposed to uniformly construct a series of exact solutions for general variable coefficients non-linear evolution equations. The new approach admits the following types of solutions (a) polynomial solutions, (b) exponential solutions, (c) rational solutions, (d) triangular periodic wave solutions, (e) hyperbolic and solitary wave solutions and (f) Jacobi and Weierstrass doubly periodic wave solutions. The efficiency of the method has been demonstrated by applying it to a generalized variable coefficients KdV equation. Then, new and rich variety of exact explicit solutions have been found

The locution of the sport broadcastings narrators in Spain/ La locución de los narradores deportivos radiofónicos en España

Directory of Open Access Journals (Sweden)

Lic. F. Javier Herrero Gutiérrez

2009-01-01

many fans to follow the sport broadcastings is sustained. This tool is the locution; it tool has been acquiring a series of characteristics and these characteristics convert the sport broadcastings into a wireless genre on its own, with some peculiarities different from the rest of genres. The sport narrators have developed a series of properties in their level of diction inside the retransfers that have derived in a locution used with a few special singularities, which are very attractive for the listener. To explain which are the particularities of the sport locutions it has been made across the analysis of fragments extracted from different sport broadcastings. From them, and taking as a base the principal narrator of the sports, the sonorous elements have been analyzed.

Surveillance discourse in UK broadcasting since the Snowden revelations

OpenAIRE

Lischka, Juliane A

2015-01-01

The surveillance discourse in British broadcast news since the Snowden revelations covers justifications and challenges. Justification focuses on authorisation and rationalisation strategies stating terror threats explicitly, which are often expressed by governmental actors. Delegitimation strategies predominantly use moralising and mythopoetic arguments of civil liberties and are expressed by Snowden himself, politicians, rarely by journalists, non-governmental organisations, and very rarely...

47 CFR 74.690 - Transition of the 1990-2025 MHz band from the Broadcast Auxiliary Service to emerging technologies.

Science.gov (United States)

2010-10-01

... Broadcast Auxiliary Service to emerging technologies. 74.690 Section 74.690 Telecommunication FEDERAL... of the 1990-2025 MHz band from the Broadcast Auxiliary Service to emerging technologies. (a) New... licensed emerging technology services will maintain primary status in the band until the Existing Licensee...

Topology-oblivious optimization of MPI broadcast algorithms on extreme-scale platforms

KAUST Repository

Hasanov, Khalid; Quintin, Jean-Noë l; Lastovetsky, Alexey

2015-01-01

operations for particular architectures by taking into account either their topology or platform parameters. In this work we propose a simple but general approach to optimization of the legacy MPI broadcast algorithms, which are widely used in MPICH and Open

Improving the throughput of cognitive radio networks using the broadcast approach

KAUST Repository

Sboui, Lokman; Rezki, Zouheir; Alouini, Mohamed-Slim

2013-01-01

We study the impact of adopting a multi layer coding (MLC) strategy, i.e., the so-called broadcast approach (BA) on the throughput of Cognitive Radio (CR) spectrum sharing systems for general fading channels. First, we consider a scenario where

78 FR 14060 - Television Broadcasting Services; Seaford, Delaware and Dover, Delaware

Science.gov (United States)

2013-03-04

...] Television Broadcasting Services; Seaford, Delaware and Dover, Delaware AGENCY: Federal Communications... waiver of the Commission's freeze on the filing of petitions for rulemaking by televisions stations... first local television service, and that Seaford will remain well-served after the reallotment because...

On exact solutions of scattering problems

International Nuclear Information System (INIS)

Nikishov, P.Yu.; Plekhanov, E.B.; Zakhariev, B.N.

1982-01-01

Examples illustrating the quality of the reconstruction of potentials from single-channel scattering data by using exactly solvable models are given. Simple exact solutions for multi-channel systems with non-degenerated resonance singularities of the scattering matrix are derived

Digital terrestrial television broadcasting technology and system

CERN Document Server

2015-01-01

Now under massive deployment worldwide, digital terrestrial television broadcasting (DTTB) offers one of the most attractive ways to deliver digital TV over the VHF/UHF band. Written by a team of experts for specialists and non-specialists alike, this book serves as a comprehensive guide to DTTB. It covers the fundamentals of channel coding and modulation technologies used in DTTB, as well as receiver technology for synchronization, channel estimation, and equalization. It also covers the recently introduced Chinese DTTB standard, using the SFN network in Hong Kong as an example.

The scheme and research of TV series multidimensional comprehensive evaluation on cross-platform

Science.gov (United States)

Chai, Jianping; Bai, Xuesong; Zhou, Hongjun; Yin, Fulian

2016-10-01

As for shortcomings of the comprehensive evaluation system on traditional TV programs such as single data source, ignorance of new media as well as the high time cost and difficulty of making surveys, a new evaluation of TV series is proposed in this paper, which has a perspective in cross-platform multidimensional evaluation after broadcasting. This scheme considers the data directly collected from cable television and the Internet as research objects. It's based on TOPSIS principle, after preprocessing and calculation of the data, they become primary indicators that reflect different profiles of the viewing of TV series. Then after the process of reasonable empowerment and summation by the six methods(PCA, AHP, etc.), the primary indicators form the composite indices on different channels or websites. The scheme avoids the inefficiency and difficulty of survey and marking; At the same time, it not only reflects different dimensions of viewing, but also combines TV media and new media, completing the multidimensional comprehensive evaluation of TV series on cross-platform.

Northern goshawk broadcast surveys: Hawk response variables and survey cost

Science.gov (United States)

Suzanne M. Joy; Richard T. Reynolds; Douglas G. Leslie

1994-01-01

We examined responses of Northern Goshawks (Accipter gentilis) to taped broadcast calls of conspecifics in tree-harvest areas and around alternate goshawk nests on Kaibab National Forest, Arizona, in 1991 and 1992. Forest areas totaling 476 km2 were systematically surveyed for goshawks. Ninety responses by adult and juvenile goshawks were elicited...

A Safety Enhancement Broadcasting Scheme Based on Context Sensing in VANETs

Directory of Open Access Journals (Sweden)

Chen Chen

2016-01-01

Full Text Available The broadcasting plays a vital role for context awareness in VANETs (Vehicular Ad Hoc Networks whose primary goal is to improve the driving safety depending on effective information exchanging. In this paper, based on the LQG (linear quadratic Gaussian optimal control theory, a broadcasting control scheme named LQG-CCA is proposed to improve the network throughput thus increasing the opportunities for the safety-related events to be successfully handled. By predicting the network throughput with the Kalman filter model, our LQG model is envisioned to minimize the difference between the predicted and expected throughput through the adjustment of CCA (Clear Channel Assessment sensing threshold. Numerical results show that our proposed model can significantly improve the network performance in terms of average throughput, average End-to-End delay, and average packets delivery ratio compared with a highly cited work D-FPAV and a latest published model APPR.

De poëtica van het verbeelden van geschiedenis op broadcast televisie. De casus van Andere Tijden sinds 2000

NARCIS (Netherlands)

Hagedoorn, Berber

2017-01-01

textabstractIn modern society, television is one of the most important media for presenting the past. This article focuses on the poetics of history on television broadcasts in relation to the manner in which these broadcasts present our past as well as our collective memory. This study rebuts

Exact Time-Dependent Wave Functions of a Confined Time-Dependent Harmonic Oscillator with Two Moving Boundaries

International Nuclear Information System (INIS)

Lo, C.F.

2009-01-01

By applying the standard analytical techniques of solving partial differential equations, we have obtained the exact solution in terms of the Fourier sine series to the time-dependent Schroedinger equation describing a quantum one-dimensional harmonic oscillator of time-dependent frequency confined in an infinite square well with the two walls moving along some parametric trajectories. Based upon the orthonormal basis of quasi-stationary wave functions, the exact propagator of the system has also been analytically derived. Special cases like (i) a confined free particle, (ii) a confined time-independent harmonic oscillator, and (iii) an aging oscillator are examined, and the corresponding time-dependent wave functions are explicitly determined. Besides, the approach has been extended to solve the case of a confined generalized time-dependent harmonic oscillator for some parametric moving boundaries as well. (general)

Exact exchange-correlation potentials of singlet two-electron systems

Science.gov (United States)

Ryabinkin, Ilya G.; Ospadov, Egor; Staroverov, Viktor N.

2017-10-01

We suggest a non-iterative analytic method for constructing the exchange-correlation potential, v XC ( r ) , of any singlet ground-state two-electron system. The method is based on a convenient formula for v XC ( r ) in terms of quantities determined only by the system's electronic wave function, exact or approximate, and is essentially different from the Kohn-Sham inversion technique. When applied to Gaussian-basis-set wave functions, the method yields finite-basis-set approximations to the corresponding basis-set-limit v XC ( r ) , whereas the Kohn-Sham inversion produces physically inappropriate (oscillatory and divergent) potentials. The effectiveness of the procedure is demonstrated by computing accurate exchange-correlation potentials of several two-electron systems (helium isoelectronic series, H2, H3 + ) using common ab initio methods and Gaussian basis sets.

Using Digital Watermarking for Securing Next Generation Media Broadcasts

Science.gov (United States)

Birk, Dominik; Gaines, Seán

The Internet presents a problem for the protection of intellectual property. Those who create content must be adequately compensated for the use of their works. Rights agencies who monitor the use of these works exist in many jurisdictions. In the traditional broadcast environment this monitoring is a difficult task. With Internet Protocol Television (IPTV) and Next Generation Networks (NGN) this situation is further complicated.

Time measurement - technical importance of most exact clocks

International Nuclear Information System (INIS)

Goebel, E.O.; Riehle, F.

2004-01-01

The exactness of the best atomic clocks currently shows a temporal variation of 1 second in 30 million years. This means that we have reached the point of the most exact frequency and time measurement ever. In the past, there was a trend towards increasing the exactness in an increasingly fast sequence. Will this trend continue? And who will profit from it? This article is meant to give answers to these questions. This is done by presenting first the level reached currently with the best atomic clocks and describing the research activities running worldwide with the aim of achieving even more exact clocks. In the second part, we present examples of various areas of technical subjects and research in which the most exact clocks are being applied presently and even more exact ones will be needed in the future [de

Big Social Data Analytics of Changes in Consumer Behaviour and Opinion of a TV Broadcaster

DEFF Research Database (Denmark)

Hennig, Anna; Åmodt, Anne-Sofie; Hernes, Henrik

2016-01-01

This paper examines the changes in consumer behaviour and opinions due to the transition from a public to a commercial broadcaster in the context of broadcasting international media events. By analyzing TV viewer ratings, Facebook activity and its sentiment, we aim to provide answers to how...... the transition from airing Winter Olympic Games on NRK to TV2 in Norway affected consumer behaviour and opinion.We used text classification and visual analytics methods on the business and social datasets. Our main finding is a clear link between negative sentiment and commercials. Despite positive change...

The advent and growth of television broadcasting in Nigeria: its political and educational overtones.

Science.gov (United States)

Umeh, C C

1989-01-01

In 1959, the regional government of Western Nigeria established the 1st television station in Nigeria and in Africa. Even though it promoted the station as a means to educate the people about development and the world, it initially served as a means for an opposition leader to address the people of Western Nigeria. The regional governments of Eastern and Northern Nigeria and the federal government in Lagos followed and started their own TV stations in the early 1960s. All 4 of these stations basically existed to serve partisan political objectives for the various governments. Any stations established after these 4 continued this same political and regionalistic heritage. In 1973, a new surge of regional consciousness occurred after the now military government allowed the division of the country into 19 states. This change, the concurrent oil boom, and the effectiveness and importance of existing TV broadcasting led to a new surge of state owned TV stations. 3 years later, the military government established the National Television Authority (NTA) to coordinate nationwide coverage. The NTA then acquired existing TV stations. This event slowed the growth of TV broadcasting until 1979 when military government rule ended. The 5 political parties vying for election in the states revoked the NTA charter and a proliferation of TV stations occurred. This also happened because the civilian administration was disorganized. As regionalization played a role in the broadcasting of political propaganda, so did it play a role in educational programming, Despite TV broadcasting's political ties, it has been successful in producing quality educational programs for schools and colleges nationwide via the NTA network with the assistance of UNESCO.

New exact solutions of the mBBM equation

International Nuclear Information System (INIS)

Zhang Zhe; Li Desheng

2013-01-01

The enhanced modified simple equation method presented in this article is applied to construct the exact solutions of modified Benjamin-Bona-Mahoney equation. Some new exact solutions are derived by using this method. When some parameters are taken as special values, the solitary wave solutions can be got from the exact solutions. It is shown that the method introduced in this paper has general significance in searching for exact solutions to the nonlinear evolution equations. (authors)

Harmonic oscillator in heat bath: Exact simulation of time-lapse-recorded data and exact analytical benchmark statistics

DEFF Research Database (Denmark)

Nørrelykke, Simon F; Flyvbjerg, Henrik

2011-01-01

The stochastic dynamics of the damped harmonic oscillator in a heat bath is simulated with an algorithm that is exact for time steps of arbitrary size. Exact analytical results are given for correlation functions and power spectra in the form they acquire when computed from experimental time...

On minimizing the maximum broadcast decoding delay for instantly decodable network coding

KAUST Repository

Douik, Ahmed S.; Sorour, Sameh; Alouini, Mohamed-Slim; Ai-Naffouri, Tareq Y.

2014-01-01

In this paper, we consider the problem of minimizing the maximum broadcast decoding delay experienced by all the receivers of generalized instantly decodable network coding (IDNC). Unlike the sum decoding delay, the maximum decoding delay as a

Introduction to the polymorphic tracking code Fibre bundles, polymorphic Taylor types and "Exact tracking"

CERN Document Server

Schmidt, F; McIntosh, E

2002-01-01

This is a description of the basic ideas behind the ``Polymorphic Tracking Code'' or PTC. PTC is truly a ``kick code'' or symplectic integrator in the tradition of TRACYII, SixTrack, and TEAPOT. However it separates correctly the mathematical atlas of charts and the magnets at a structural level by implementing a ``restricted fibre bundle.'' The resulting structures allow backward propagation and recirculation, something not possible in standard tracking codes. Also PTC is polymorphic in handling real (single, double and even quadruple precision) and Taylor series. Therefore it has all the tools associated to the TPSA packages: Lie methods, Normal Forms, Cosy-Infinity capabilities, beam envelopes for radiation, etc., as well as parameter dependence on-the-fly. However PTC is an integrator, and as such, one must, generally, adhere to the Talman ``exactness'' view of modelling. Incidentally, it supports exact sector and rectangular bends as well. Of course, one can certainly bypass its integrator and the user i...

Capacity of wireless ad-hoc broadcast networks under realistic channel models

NARCIS (Netherlands)

Atici, C.; Sunay, M.O.

2009-01-01

In a wireless broadcasting scenario, some of the nodes can help the source node by forwarding the received information. Due to the interference from multiple transmissions, selection of these nodes directly affects the performance of the system under a given total power and hop constraint. In this

An analytical model for the performance of geographical multi-hop broadcast

NARCIS (Netherlands)

Klein Wolterink, W.; Heijenk, G.; Berg, J.L. van den

2012-01-01

In this paper we present an analytical model accurately describing the behaviour of a multi-hop broadcast protocol. Our model covers the scenario in which a message is forwarded over a straight road and inter-node distances are distributed exponentially. Intermediate forwarders draw a small random

Load sharing in distributed real-time systems with state-change broadcasts

Science.gov (United States)

Shin, Kang G.; Chang, Yi-Chieh

1989-01-01

A decentralized dynamic load-sharing (LS) method based on state-change broadcasts is proposed for a distributed real-time system. Whenever the state of a node changes from underloaded to fully loaded and vice versa, the node broadcasts this change to a set of nodes, called a buddy set, in the system. The performance of the method is evaluated with both analytic modeling and simulation. It is modeled first by an embedded Markov chain for which numerical solutions are derived. The model solutions are then used to calculate the distribution of queue lengths at the nodes and the probability of meeting task deadlines. The analytical results show that buddy sets of 10 nodes outperform those of less than 10 nodes, and the incremental benefit gained from increasing the buddy set size beyond 15 nodes is insignificant. These and other analytical results are verified by simulation. The proposed LS method is shown to meet task deadlines with a very high probability.

Broadcasting the Status of Plant Growth Chamber using Bluetooth Low Energy

Directory of Open Access Journals (Sweden)

Al-Azam Moh Noor

2018-01-01

Full Text Available Mobile users are getting smarter in using their phones. Many tasks are usually completed or monitored via a computer screen, nowadays can be taken anywhere with Android phones or tablets. Likewise with features in the phone is increasingly sophisticated. Currently bluetooth version 4 is almost mandatory in all phones. Even for entry level phones are now equipped with bluetooth version 4. This paper discusses the use of Bluetooth Low Energy—which is part of bluetooth version 4, in providing information about the status of plant growth chamber conditions. By using this concept, all phones or tablets that have bluetooth version 4 and there are applications in it will be able to receive the latest chamber status. The results show that this way of broadcasting is very effective. The data required to be monitored by a laboratory technician can be continuously broadcasted so that anyone on duty will get instant information at his grasp.

Measurements of photo-oxidation products from the reaction of a series of alkyl-benzenes with hydroxyl radicals during EXACT using comprehensive gas chromatography

Directory of Open Access Journals (Sweden)

J. F. Hamilton

2003-01-01

Full Text Available Photo-oxidation products from the reaction of a series of alkyl-benzenes, (benzene, toluene, p-xylene and 1,3,5-trimethyl-benzene with hydroxyl radicals in the presence of NOx have been investigated using comprehensive gas chromatography (GCxGC. A GCxGC system has been developed which utilises valve modulation and independent separations as a function of both volatility and polarity. A number of carbonyl-type compounds were identified during a series of reactions carried out at the European Photoreactor (EUPHORE, a large volume outdoor reaction chamber in Valencia, Spain. Experiments were carried as part of the EXACT project (Effects of the oXidation of Aromatic Compounds in the Troposphere. Two litre chamber air samples were cryo-focused, with a sampling frequency of 30 minutes, allowing the evolution of species to be followed over oxidation periods of 3-6 hours. To facilitate product identification, several carbonyl compounds, which were possible products of the photo-oxidation, were synthesised and used as reference standards. For toluene reactions, observed oxygenated intermediates found included the co-eluting pair a-angelicalactone/4-oxo-2-pentenal, maleic anhydride, citraconic anhydride, benzaldehyde and p-methyl benzoquinone. In the p-xylene experiment, the products identified were E/Z-hex-3-en-2,5-dione and citraconic anhydride. For 1,3,5-TMB reactions, the products identified were 3,5-dimethylbenzaldehyde, 3,5-dimethyl-3H-furan-2-one and 3-methyl-5-methylene-5H-furan-2-one. Preliminary quantification was carried out on identified compounds using liquid standards. Comparison of FTIR and GCxGC for the measurement of the parent aromatics generally showed good agreement. Comparison of the concentrations observed by GCxGC to concentration-time profiles simulated using the Master Chemical Mechanism, MCMv3, demonstrates that this mechanism significantly over-predicts the concentrations of many product compounds and highlights the

Negativity Bias in Media Multitasking: The Effects of Negative Social Media Messages on Attention to Television News Broadcasts.

Science.gov (United States)

Kätsyri, Jari; Kinnunen, Teemu; Kusumoto, Kenta; Oittinen, Pirkko; Ravaja, Niklas

2016-01-01

Television viewers' attention is increasingly more often divided between television and "second screens", for example when viewing television broadcasts and following their related social media discussion on a tablet computer. The attentional costs of such multitasking may vary depending on the ebb and flow of the social media channel, such as its emotional contents. In the present study, we tested the hypothesis that negative social media messages would draw more attention than similar positive messages. Specifically, news broadcasts were presented in isolation and with simultaneous positive or negative Twitter messages on a tablet to 38 participants in a controlled experiment. Recognition memory, gaze tracking, cardiac responses, and self-reports were used as attentional indices. The presence of any tweets on the tablet decreased attention to the news broadcasts. As expected, negative tweets drew longer viewing times and elicited more attention to themselves than positive tweets. Negative tweets did not, however, decrease attention to the news broadcasts. Taken together, the present results demonstrate a negativity bias exists for social media messages in media multitasking; however, this effect does not amplify the overall detrimental effects of media multitasking.

Negativity Bias in Media Multitasking: The Effects of Negative Social Media Messages on Attention to Television News Broadcasts.

Directory of Open Access Journals (Sweden)

Jari Kätsyri

Full Text Available Television viewers' attention is increasingly more often divided between television and "second screens", for example when viewing television broadcasts and following their related social media discussion on a tablet computer. The attentional costs of such multitasking may vary depending on the ebb and flow of the social media channel, such as its emotional contents. In the present study, we tested the hypothesis that negative social media messages would draw more attention than similar positive messages. Specifically, news broadcasts were presented in isolation and with simultaneous positive or negative Twitter messages on a tablet to 38 participants in a controlled experiment. Recognition memory, gaze tracking, cardiac responses, and self-reports were used as attentional indices. The presence of any tweets on the tablet decreased attention to the news broadcasts. As expected, negative tweets drew longer viewing times and elicited more attention to themselves than positive tweets. Negative tweets did not, however, decrease attention to the news broadcasts. Taken together, the present results demonstrate a negativity bias exists for social media messages in media multitasking; however, this effect does not amplify the overall detrimental effects of media multitasking.

Lossless Compression of Broadcast Video

DEFF Research Database (Denmark)

Martins, Bo; Eriksen, N.; Faber, E.

1998-01-01

We investigate several techniques for lossless and near-lossless compression of broadcast video.The emphasis is placed on the emerging international standard for compression of continous-tone still images, JPEG-LS, due to its excellent compression performance and moderatecomplexity. Except for one...... cannot be expected to code losslessly at a rate of 125 Mbit/s. We investigate the rate and quality effects of quantization using standard JPEG-LS quantization and two new techniques: visual quantization and trellis quantization. Visual quantization is not part of baseline JPEG-LS, but is applicable...... in the framework of JPEG-LS. Visual tests show that this quantization technique gives much better quality than standard JPEG-LS quantization. Trellis quantization is a process by which the original image is altered in such a way as to make lossless JPEG-LS encoding more effective. For JPEG-LS and visual...

Variable-Length Coding with Stop-Feedback for the Common-Message Broadcast Channel

DEFF Research Database (Denmark)

Trillingsgaard, Kasper Fløe; Yang, Wei; Durisi, Giuseppe

2016-01-01

This paper investigates the maximum coding rate over a K-user discrete memoryless broadcast channel for the scenario where a common message is transmitted using variable-length stop-feedback codes. Specifically, upon decoding the common message, each decoder sends a stop signal to the encoder...... of these bounds reveal that---contrary to the point-to-point case---the second-order term in the asymptotic expansion of the maximum coding rate decays inversely proportional to the square root of the average blocklength. This holds for certain nontrivial common-message broadcast channels, such as the binary......, which transmits continuously until it receives all K stop signals. We present nonasymptotic achievability and converse bounds for the maximum coding rate, which strengthen and generalize the bounds previously reported in Trillingsgaard et al. (2015) for the two-user case. An asymptotic analysis...

DIGITAL BROADCASTING and INTERACTIVE TELEVISION in DISTANCE EDUCATION: Digital And Interactive Television Infrastructure Proposol for Anadolu University Open Education Faculty

Directory of Open Access Journals (Sweden)

Reha Recep ERGUL

2007-01-01

Full Text Available Rapid changes and improvements in the communication and information technologies beginning from the midst of the 20th Century and continuing today require new methods, constructions, and arrangements in the production and distribution of information. While television having the ability of presenting complex or difficult to comprehend concepts, subjects, and experimental studies to learners from different points of view, supported by 2D or 3D graphics and animations with audio visual stimulators replaces its technology from analog to digital and towards digital-interactive, it has also begun to convert the broadcasting technology in Turkey in this direction. Therefore, television broadcast infrastructure of Anadolu University Open Education Faculty needs to be replaced with a digital and interactive one. This study contains basic concepts of digital and interactive broadcasting and the new improvements. Furthermore, it includes the approaches in the basis of why and how a digital television broadcasting infrastructure should be stablished.

78 FR 2934 - Promoting Diversification of Ownership in the Broadcasting Services

Science.gov (United States)

2013-01-15

... with fewer than 25 employees.'' I. Introduction 1. The Commission seeks comment on whether to collect... Commission determined that, in order to measure the extent of minority and female ownership of broadcast outlets and assess the need for and effectiveness of any policies designed to promote minority and female...

78 FR 21565 - Television Broadcasting Services; Jackson, Wyoming to Wilmington, DE

Science.gov (United States)

2013-04-11

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 13-73; RM-11695; DA 13-450] Television Broadcasting Services; Jackson, Wyoming to Wilmington, DE AGENCY: Federal Communications... review Act, see 5 U.S.C. 801(a)(1)(A). List of Subjects in 47 CFR Part 73 Television. Federal...

RG flows in the D-series of minimal CFTs

International Nuclear Information System (INIS)

Klassen, T.R.; Melzer, E.

1993-01-01

Using results of the thermodynamic Bethe ansatz approach and conformal perturbation theory we argue that the φ 1,3 perturbation of a unitary minimal (1+1)-dimensional conformal field theory (CFT) in the D-series of modular invariant partition functions induces a renormalization group (RG) flow to the next-lower model in the D-series. An exception is the first model in the series, the three-state Potts CFT, which under the Z 2 -even φ 1,3 -perturbation flows to the tricritical Ising CFT, the second model in the A-series. We present arguments that in the A-series flow corresponding to this exceptional case, interpolating between the tetracritical and the tricritical Ising CFT, the IR fixed point is approached from 'exactly the opposite direction'. Our results indicate how (most of) the relevant conformal fields evolve from the UV to the IR CFT. (orig.)

WKB approach to evaluate series of Mathieu functions in scattering problems

OpenAIRE

Hubert, Maxime; Dubertrand, Remy

2017-01-01

The scattering of a wave obeying Helmholtz equation by an elliptic obstacle can be described exactly using series of Mathieu functions. This situation is relevant in optics, quantum mechanics and fluid dynamics. We focus on the case when the wavelength is comparable to the obstacle size, when the most standard approximations fail. The approximations of the radial (or modified) Mathieu functions using WKB method are shown to be especially efficient, in order to precisely evaluate series of suc...

47 CFR 25.148 - Licensing provisions for the Direct Broadcast Satellite Service.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 2 2010-10-01 2010-10-01 false Licensing provisions for the Direct Broadcast Satellite Service. 25.148 Section 25.148 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES SATELLITE COMMUNICATIONS Applications and Licenses Space Stations § 25.148...

Exact analysis of discrete data

CERN Document Server

Hirji, Karim F

2005-01-01

Researchers in fields ranging from biology and medicine to the social sciences, law, and economics regularly encounter variables that are discrete or categorical in nature. While there is no dearth of books on the analysis and interpretation of such data, these generally focus on large sample methods. When sample sizes are not large or the data are otherwise sparse, exact methods--methods not based on asymptotic theory--are more accurate and therefore preferable.This book introduces the statistical theory, analysis methods, and computation techniques for exact analysis of discrete data. After reviewing the relevant discrete distributions, the author develops the exact methods from the ground up in a conceptually integrated manner. The topics covered range from univariate discrete data analysis, a single and several 2 x 2 tables, a single and several 2 x K tables, incidence density and inverse sampling designs, unmatched and matched case -control studies, paired binary and trinomial response models, and Markov...

Exact, almost and delayed fault detection

DEFF Research Database (Denmark)

Niemann, Hans Henrik; Saberi, Ali; Stoorvogel, Anton A.

1999-01-01

Considers the problem of fault detection and isolation while using zero or almost zero threshold. A number of different fault detection and isolation problems using exact or almost exact disturbance decoupling are formulated. Solvability conditions are given for the formulated design problems....... The l-step delayed fault detection problem is also considered for discrete-time systems....

Exact solutions, numerical relativity and gravitational radiation

International Nuclear Information System (INIS)

Winicour, J.

1986-01-01

In recent years, there has emerged a new use for exact solutions to Einstein's equation as checks on the accuracy of numerical relativity codes. Much has already been written about codes based upon the space-like Cauchy problem. In the case of two Killing vectors, a numerical characteristic initial value formulation based upon two intersecting families of null hypersurfaces has successfully evolved the Schwarzschild and the colliding plane wave vacuum solutions. Here the author discusses, in the context of exact solutions, numerical studies of gravitational radiation based upon the null cone initial value problem. Every stage of progress in the null cone approach has been associated with exact solutions in some sense. He begins by briefly recapping this history. Then he presents two new examples illustrating how exact solutions can be useful

Perturbation of an exact strong gravity solution

International Nuclear Information System (INIS)

Baran, S.A.

1982-10-01

Perturbations of an exact strong gravity solution are investigated. It is shown, by using the new multipole expansions previously presented, that this exact and static spherically symmetric solution is stable under odd parity perturbations. (author)

Analysis of fast neutrons elastic moderator through exact solutions involving synthetic-kernels

International Nuclear Information System (INIS)

Moura Neto, C.; Chung, F.L.; Amorim, E.S.

1979-07-01

The computation difficulties in the transport equation solution applied to fast reactors can be reduced by the development of approximate models, assuming that the continuous moderation holds. Two approximations were studied. The first one was based on an expansion in Taylor's series (Fermi, Wigner, Greuling and Goertzel models), and the second involving the utilization of synthetic Kernels (Walti, Turinsky, Becker and Malaviya models). The flux obtained by the exact method is compared with the fluxes from the different models based on synthetic Kernels. It can be verified that the present study is realistic for energies smaller than the threshold for inelastic scattering, as well as in the resonance region. (Author) [pt

37 CFR 381.6 - Performance of musical compositions by other public broadcasting entities.

Science.gov (United States)

2010-07-01

... subject to this section shall furnish to ASCAP, BMI and SESAC, upon request, a music-use report during one... total population data, from a research company generally recognized in the broadcasting industry, for...

A Mobility-aware Broadcasting Infrastructure for a Wireless Internet with Hotspots

NARCIS (Netherlands)

Hesselman, C.E.W.; Eertink, Henk; Eertink, E.H.; Widya, I.A.; Huizer, E.; Kermani, P.

In this paper, we consider the problem of adaptively delivering live multimedia broadcasts (e.g., for applications such as TV, radio, or e-cinema) to a potentially large number of mobile hosts that roam about in a wireless internet with hotspots. We take a user-oriented approach based on an

Cultural Years [SCRIPT 7 of 7]. "Music, the Arts and Society at the time of the Exposition Internationale des Arts et Techniques dans la Vie Moderne in Paris of 1837"\\ud [RADIO SERIES

OpenAIRE

Little, Jonathan D.

1990-01-01

Part of a seven-part radio series broadcast on Sundays at 10:30pm fortnightly from 1st April, 1990. Researched, written, presented and produced by Jonathan David Little for 3MBS-FM Fine Music Melbourne.\\ud \\ud CULTURAL YEARS - Series / Programme Description:\\ud \\ud “Cultural Years” was a seven-part radio series which discussed “Music, the Arts and Society around the time of seven of the great 19th- and 20th-century International Exhibitions” (see below). In examining the ideas which lay behin...

Broadcast Communication by System Frequency Modulation

DEFF Research Database (Denmark)

Douglass, Philip James; You, Shi; Heussen, Kai

2012-01-01

Load controllers available today can measure AC system frequency and react to frequency deviations. A system operator can communicate to frequency sensitive loads by changing the set-points of the system’s dispatchable frequency regulation resources. Explicitly signaling system state by generating...... off-nominal system frequency values is a novel narrowband broadcast communications channel between system operators and frequency sensitive distributed energy resources (FS-DER). The feasibility of the proposed system is evaluated on an existing island power system in Denmark. This study shows...... that within standard frequency quality constraints, 4 distinct symbols are feasible on the island. However, the overarching imperative of system stability prevents the symbols from having arbitrary meanings. Higher frequency values must translate into greater consumption from loads, and vice versa. Within...

77 FR 24662 - Determination of Reasonable Rates and Terms for Noncommercial Broadcasting

Science.gov (United States)

2012-04-25

... Congress, James Madison Memorial Building, Room LM-401, 101 Independence Avenue SE., Washington, DC 20559..., Library of Congress, James Madison Memorial Building, Room LM-403, 101 Independence Avenue SE., Washington... Authors, Composers and Publishers (``ASCAP''); SESAC, Inc.; Broadcast Music, Inc. (``BMI''); Educational...

78 FR 21849 - Television Broadcasting Services; Ely, NV to Middletown Township, NJ

Science.gov (United States)

2013-04-12

... FEDERAL COMMUNICATIONS COMMISSION 47 CFR Part 73 [MB Docket No. 13-72; RM-11694, DA 13-448] Television Broadcasting Services; Ely, NV to Middletown Township, NJ AGENCY: Federal Communications... CFR Part 73 Television. Federal Communications Commission. Barbara A. Kreisman, Chief, Video Division...

Two-dimensional block-based reception for differentially encoded OFDM systems : a study on improved reception techniques for digital audio broadcasting systems

NARCIS (Netherlands)

Houtum, van W.J.

2012-01-01

Digital audio broadcast (DAB), DAB+ and Terrestrial-Digital Multimedia Broadcasting (T-DMB) systems use multi-carrier modulation (MCM). The principle of MCM in the DAB-family is based on orthogonal frequency division multiplexing (OFDM), for which every subcarrier is modulated by p 4 differentially

Reliable Wireless Broadcast with Linear Network Coding for Multipoint-to-Multipoint Real-Time Communications

Science.gov (United States)

Kondo, Yoshihisa; Yomo, Hiroyuki; Yamaguchi, Shinji; Davis, Peter; Miura, Ryu; Obana, Sadao; Sampei, Seiichi

This paper proposes multipoint-to-multipoint (MPtoMP) real-time broadcast transmission using network coding for ad-hoc networks like video game networks. We aim to achieve highly reliable MPtoMP broadcasting using IEEE 802.11 media access control (MAC) that does not include a retransmission mechanism. When each node detects packets from the other nodes in a sequence, the correctly detected packets are network-encoded, and the encoded packet is broadcasted in the next sequence as a piggy-back for its native packet. To prevent increase of overhead in each packet due to piggy-back packet transmission, network coding vector for each node is exchanged between all nodes in the negotiation phase. Each user keeps using the same coding vector generated in the negotiation phase, and only coding information that represents which user signal is included in the network coding process is transmitted along with the piggy-back packet. Our simulation results show that the proposed method can provide higher reliability than other schemes using multi point relay (MPR) or redundant transmissions such as forward error correction (FEC). We also implement the proposed method in a wireless testbed, and show that the proposed method achieves high reliability in a real-world environment with a practical degree of complexity when installed on current wireless devices.

Anomaly on Superspace of Time Series Data

Science.gov (United States)

Capozziello, Salvatore; Pincak, Richard; Kanjamapornkul, Kabin

2017-11-01

We apply the G-theory and anomaly of ghost and antighost fields in the theory of supersymmetry to study a superspace over time series data for the detection of hidden general supply and demand equilibrium in the financial market. We provide proof of the existence of a general equilibrium point over 14 extradimensions of the new G-theory compared with the M-theory of the 11 dimensions model of Edward Witten. We found that the process of coupling between nonequilibrium and equilibrium spinor fields of expectation ghost fields in the superspace of time series data induces an infinitely long exact sequence of cohomology from a short exact sequence of moduli state space model. If we assume that the financial market is separated into two topological spaces of supply and demand as the D-brane and anti-D-brane model, then we can use a cohomology group to compute the stability of the market as a stable point of the general equilibrium of the interaction between D-branes of the market. We obtain the result that the general equilibrium will exist if and only if the 14th Batalin-Vilkovisky cohomology group with the negative dimensions underlying 14 major hidden factors influencing the market is zero.

Bridging Gaps in Cross-Cutting Media Exposure: The Role of Public Service Broadcasting

DEFF Research Database (Denmark)

Castro, Laia; Nir, Lilach; Skovsgaard, Morten

2018-01-01

Abstract Previous studies show that individual political interest is an antecedent of news media exposure, particularly of exposure to differing views. Nevertheless, little is known about this effect from a comparative perspective: How do media institutions affect the relationship between political...... interest and exposure to cross-cutting viewpoints? One institutional feature that varies between countries is the ownership of broadcast media. This study investigates the extent to which the relative dominance of public service broadcasting alters the relationship between political interest and non-like-minded......, or cross-cutting, news media exposure across 27 European Union countries. The analyses employ survey data from 27,079 individuals and media content from 48,983 news stories. The results confirm that the extent to which political interest contributes to cross-cutting exposure is contingent on the strength...

Study on moving target detection to passive radar based on FM broadcast transmitter

Institute of Scientific and Technical Information of China (English)

无

2007-01-01

Target detection by a noncooperative illuminator is a topic of general interest in the electronic warfare field.First of all,direct-path interference(DPI)suppression which is the technique of bottleneck of moving target detection by a noncooperative frequency modulation(FM) broadcast transmitter is analyzed in this article;Secondly,a space-time-frequency domain synthetic solution to this problem is introduced:Adaptive nulling array processing is considered in the space domain,DPI cancellation based on adaptive fractional delay interpolation(AFDI)technique is used in planned time domain,and long-time coherent integration is utilized in the frequency domain;Finally,an experimental system is planned by considering FM broadcast transmitter as a noncooperative illuminator,Simulation results by real collected data show that the proposed method has a better performance of moving target detection.

Bridging Gaps in Cross-Cutting Media Exposure: The Role of Public Service Broadcasting

DEFF Research Database (Denmark)

Castro, Laia; Nir, Lilach; Skovsgaard, Morten

2018-01-01

Abstract Previous studies show that individual political interest is an antecedent of news media exposure, particularly of exposure to differing views. Nevertheless, little is known about this effect from a comparative perspective: How do media institutions affect the relationship between political...... interest and exposure to cross-cutting viewpoints? One institutional feature that varies between countries is the ownership of broadcast media. This study investigates the extent to which the relative dominance of public service broadcasting alters the relationship between political interest and non......-like-minded, or cross-cutting, news media exposure across 27 European Union countries. The analyses employ survey data from 27,079 individuals and media content from 48,983 news stories. The results confirm that the extent to which political interest contributes to cross-cutting exposure is contingent on the strength...

Classes of exact Einstein Maxwell solutions

Science.gov (United States)

Komathiraj, K.; Maharaj, S. D.

2007-12-01

We find new classes of exact solutions to the Einstein Maxwell system of equations for a charged sphere with a particular choice of the electric field intensity and one of the gravitational potentials. The condition of pressure isotropy is reduced to a linear, second order differential equation which can be solved in general. Consequently we can find exact solutions to the Einstein Maxwell field equations corresponding to a static spherically symmetric gravitational potential in terms of hypergeometric functions. It is possible to find exact solutions which can be written explicitly in terms of elementary functions, namely polynomials and product of polynomials and algebraic functions. Uncharged solutions are regainable with our choice of electric field intensity; in particular we generate the Einstein universe for particular parameter values.

Exact optics - III. Schwarzschild's spectrograph camera revised

Science.gov (United States)

Willstrop, R. V.

2004-03-01

Karl Schwarzschild identified a system of two mirrors, each defined by conic sections, free of third-order spherical aberration, coma and astigmatism, and with a flat focal surface. He considered it impractical, because the field was too restricted. This system was rediscovered as a quadratic approximation to one of Lynden-Bell's `exact optics' designs which have wider fields. Thus the `exact optics' version has a moderate but useful field, with excellent definition, suitable for a spectrograph camera. The mirrors are strongly aspheric in both the Schwarzschild design and the exact optics version.

Interviewers' challenging questions in British broadcast debate interviews

DEFF Research Database (Denmark)

Emmertsen, Sofie

2007-01-01

that these are constructed in adherence with the IR’s formal neutrality as provided by the turn-taking system for the news interview. The paper suggests that debate interview cannot be adequately understood as organised according to one turn-taking system, but rather as organised by the turn-taking system for news......In recent years some British broadcast panel interviews take a particularly confrontational form. In these debate interviews, news seems to be generated as arguments provided by the interviewees who participate as protagonists of opposite positions. This paper will briefly attempt to show...

Interference mitigation for broadcast in hierarchical cell structure networks: Transmission strategy and area spectral efficiency

KAUST Repository

Yang, Yuli

2014-10-01

In this paper, a hierarchical cell structure (HCS) is considered, where an access point (AP) broadcasts to local nodes (LNs) over orthogonal frequency subbands within a local cell located in a macrocell. Since the local cell shares the spectrum licensed to the macrocell, a given LN is interfered with by the macrocell user (MU)\\'s transmissions over the same subband. To improve the performance of the AP\\'s broadcast service, a novel transmission strategy is proposed to mitigate the interference from the MU to the LN while achieving diversity gain. For the purpose of performance evaluation, the ergodic capacity of the proposed scheme is quantified, and the corresponding closed-form expression is obtained. By comparing with the traditional transmission scheme, which suffers from MU\\'s interference, illustrative numerical results substantiate that the proposed scheme achieves better performance than the traditional scheme as the MU-LN mean channel power gain is larger than half of the AP-LN mean channel power gain. Subsequently, we develop an optimized network design by maximizing the area spectral efficiency (ASE) of the AP\\'s broadcast in the local cell.

A Fast and Reliable Broadcast Service for LTE-Advanced Exploiting Multihop Device-to-Device Transmissions

Directory of Open Access Journals (Sweden)

Giovanni Nardini

2017-11-01

Full Text Available Several applications, from the Internet of Things for smart cities to those for vehicular networks, need fast and reliable proximity-based broadcast communications, i.e., the ability to reach all peers in a geographical neighborhood around the originator of a message, as well as ubiquitous connectivity. In this paper, we point out the inherent limitations of the LTE (Long-Term Evolution cellular network, which make it difficult, if possible at all, to engineer such a service using traditional infrastructure-based communications. We argue, instead, that network-controlled device-to-device (D2D communications, relayed in a multihop fashion, can efficiently support this service. To substantiate the above claim, we design a proximity-based broadcast service which exploits multihop D2D. We discuss the relevant issues both at the UE (User Equipment, which has to run applications, and within the network (i.e., at the eNodeBs, where suitable resource allocation schemes have to be enforced. We evaluate the performance of a multihop D2D broadcasting using system-level simulations, and demonstrate that it is fast, reliable and economical from a resource consumption standpoint.

High-temperature series expansions for random Potts models

Directory of Open Access Journals (Sweden)

M.Hellmund

2005-01-01

Full Text Available We discuss recently generated high-temperature series expansions for the free energy and the susceptibility of random-bond q-state Potts models on hypercubic lattices. Using the star-graph expansion technique, quenched disorder averages can be calculated exactly for arbitrary uncorrelated coupling distributions while keeping the disorder strength p as well as the dimension d as symbolic parameters. We present analyses of the new series for the susceptibility of the Ising (q=2 and 4-state Potts model in three dimensions up to the order 19 and 18, respectively, and compare our findings with results from field-theoretical renormalization group studies and Monte Carlo simulations.

Responsividade do Sistema Sancionatório da Radiodifusão Brasileira / Responsiveness of the Brazilian broadcasting regulatory system of sanctions

Directory of Open Access Journals (Sweden)

Marcelo Barros da Cunha

2016-05-01

Full Text Available Purpose – The purpose of this paper is to evaluate the responsiveness of the system of sanctions applicable to broadcasting concessionaires in Brazil. Methodology/approach/design – The research considered the theory of responsive regulation proposed by Ayres and Braithwaite as parameter for the critical analysis of the Brazilian broadcasting regulatory system of sanctions. Findings – The research concluded that the system of sanctions does not encourage concessionaires to comply with its legal, contractual and regulatory obligations, as penalties do not promote dialogue between regulator and regulated firms. There are legal obstacles for the application of the maximum penalty of revocation of concession, and some fines imposed on concessionaires in the past could not be collected as they were barred by statute of limitations. Practical implications – The findings of this research may be considered by Brazilian regulators on the development of a more responsive and effective system of sanctions for broadcasting. Originality/value (optional – The research introduces the discussion on responsiveness regarding the Brazilian broadcasting regulatory model.

Exact and approximate multiple diffraction calculations

International Nuclear Information System (INIS)

Alexander, Y.; Wallace, S.J.; Sparrow, D.A.

1976-08-01

A three-body potential scattering problem is solved in the fixed scatterer model exactly and approximately to test the validity of commonly used assumptions of multiple scattering calculations. The model problem involves two-body amplitudes that show diffraction-like differential scattering similar to high energy hadron-nucleon amplitudes. The exact fixed scatterer calculations are compared to Glauber approximation, eikonal-expansion results and a noneikonal approximation

Broadcast application of scythe for broadleaf weed control in spring-transplanted onions

Science.gov (United States)

Producers using organic methods for onion production need organic herbicides that will effectively provide post-emergent weed control. In 2008, a second year of field research was conducted to determine the effect of broadcast over-the-top application of Scythe (57% pelargonic acid) on weed control...

Metadata elements preferred in searching and assessing relevance of archived television broadcast by scholars and students in media studies

DEFF Research Database (Denmark)

Kirkegaard, Brian

for fulfilment of their work task at hand.  Subsequently to identification of appropriate access points, we consider indexing approaches for construction of the access point in surrogate records.  The primary focus is on exploitation of information in readily available external sources, namely television...... builds upon the fundamental conception that concurrent consideration of research in information seeking and IR is advantageous for Library and Information Science research.  Further, the framework contests that in order to create an effective broadcast retrieval system, it is important to gather......The present doctoral work concerns the investigation of three aspects of scholars’ and students’ information seeking behaviour in a television broadcast context, and the associated implications for design and construction of metadata elements in surrogate records in future broadcast retrieval...

Energy-Aware Broadcasting and Multicasting in Wireless Ad Hoc Networks: A Cross-Layering Approach

National Research Council Canada - National Science Library

Wieselthier, Jeffrey E; Nguyen, Gam D; Ephremides, Anthony

2004-01-01

...) problems, especially when energy-aware operation is required. To address the specific problem of energy-aware tree construction in wireless ad hoc networks, we have developed the Broadcast Incremental Power (BIP...

New hybrid non-linear transformations of divergent perturbation series for quadratic Zeeman effects

International Nuclear Information System (INIS)

Belkic, D.

1989-01-01

The problem of hydrogen atoms in an external uniform magnetic field (quadratic Zeeman effect) is studied by means of perturbation theory. The power series for the ground-state energy in terms of magnetic-field strength B is divergent. Nevertheless, it is possible to induce convergence of this divergent series by applying various non-linear transformations. These transformations of originally divergent perturbation series yield new sequences, which then converge. The induced convergence is, however, quite slow. A new hybrid Shanks-Levin non-linear transform is devised here for accelerating these slowly converging series and sequences. Significant improvement in the convergence rate is obtained. Agreement with the exact results is excellent. (author)

User innovation in public service broadcasts

DEFF Research Database (Denmark)

Khajeheian, Datis; Tadayoni, Reza

2016-01-01

and develop user innovations into professional content. This study follows a qualitative approach with a document study of Denmark's public service broadcast and two interviews. Findings indicate that the commitment to quality and professional content prevents managers of PSBs from outsourcing......This research aims to understand how public service media can encourage media entrepreneurship in the society to enrich user innovations as a source of ideas, products, contents, talent and creativity. The assumption is that media entrepreneurs turn users into sources of external creativity...... their production to media entrepreneurs, but they trust large media companies as external producers. This research contributes to the field by proposing that public service media can foster media entrepreneurship in a society indirectly and by creating demand for external sources of creativity. Large media...

8x40 Gb/s RZ all-optical broadcasting utilizing an electroabsorption modulator

DEFF Research Database (Denmark)

Xu, Lin; Chi, Nan; Yvind, Kresten

2004-01-01

We experimentally demonstrate all-optical broadcasting through simultaneous 8 × 40 Gb/s wavelength conversion in the RZ format based on cross absorption modulation in an electroabsorption modulator. The original intensity-modulated information is successfully duplicated onto eight wavelengths...

The natural history of antismoking advertising recall: the influence of broadcasting parameters, emotional intensity and executional features.

Science.gov (United States)

Dunlop, Sally M; Perez, Donna; Cotter, Trish

2014-05-01

The necessary first steps for televised media campaign effects are population exposure and recall. To maximise the impact of campaign funding, it is critical to identify modifiable factors that increase the efficiency of an advertisement reaching the target audience and of their recalling that advertisement. Data come from a serial cross-sectional telephone survey with weekly interviews of adult smokers and recent quitters from the state of New South Wales, Australia, collected between April 2005 and December 2010 (total n=13 301). Survey data were merged with commercial TV ratings data (Gross Rating Points (GRPs)) to estimate individuals' exposure to antismoking campaigns. Multivariable logistic regression analyses indicated that GRPs and broadcasting recency were positively associated with advertisement recall, such that advertisements broadcast more at higher levels or in more recent weeks were more likely to be recalled. Advertisements were more likely to be recalled in their launch phase than in following periods. Controlling for broadcasting parameters, advertisements higher in emotional intensity were more likely to be recalled than those low in emotion; and emotionally intense advertisements required fewer GRPs to achieve high levels of recall than lower emotion advertisements. There was some evidence for a diminishing effect of increased GRPs on recall. In order to achieve sufficient levels of population recall of antismoking campaigns, advertisements need to be broadcast at adequate levels in relatively frequent cycles. Advertisements with highly emotional content may offer the most efficient means by which to increase population recall.

The Future of television is personalized : analysis of the internet streaming platform NRK on demand : a public broadcast study

OpenAIRE

Sørlie, Ida Elisabeth

2014-01-01

Portraying a public broadcasters’ digital challenge, the thesis presents an analysis of the new reality, which is disrupting the world of media, entertainment and news. Targeting the dilemmas of the Norwegian Broadcasting Corporation, NRK, it seeks to offer alternatives for maximizing their public service mandate through their On Demand platform. Discussing its strengths and weaknesses, this thesis presents a proposal for the next strategic step of public service broadcasters: ...

Exact solutions in three-dimensional gravity

CERN Document Server

Garcia-Diaz, Alberto A

2017-01-01

A self-contained text, systematically presenting the determination and classification of exact solutions in three-dimensional Einstein gravity. This book explores the theoretical framework and general physical and geometrical characteristics of each class of solutions, and includes information on the researchers responsible for their discovery. Beginning with the physical character of the solutions, these are identified and ordered on the basis of their geometrical invariant properties, symmetries, and algebraic classifications, or from the standpoint of their physical nature, for example electrodynamic fields, fluid, scalar field, or dilaton. Consequently, this text serves as a thorough catalogue on 2+1 exact solutions to the Einstein equations coupled to matter and fields, and on vacuum solutions of topologically massive gravity with a cosmological constant. The solutions are also examined from different perspectives, enabling a conceptual bridge between exact solutions of three- and four-dimensional gravit...