다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

http://ieeexplore.ieee.org/iel5/5610941/5624686/05624745.pdf

Power electronics

The Transmission Control Protocol.

This paper presents a review of the turn of events and points of view of biogas in and its utilization for power, heat and in transport in the European Union (EU) and its Member States. Biogas creation has expanded in the EU, empowered by the sustainable power strategies, notwithstanding monetary, ecological and atmosphere benefits, to arrive at 18 billion m3 methane (654 PJ) in 2015, speaking to half of the worldwide biogas creation. The EU is the world chief in biogas power creation, with more than 10 GW introduced and various 17,400 biogas plants, in contrast with the worldwide biogas limit of 15 GW in 2015. In the EU, biogas conveyed 127 TJ of warmth and 61 TWh of power in 2015; about half of absolute biogas utilization in Europe was bound to warm age. Europe is the world's driving maker of biomethane for the utilization as a vehicle fuel or for infusion into the petroleum gas network, with 459 plants in 2015 creating 1.2 billion m3 and 340 plants taking care of into the gas network, with a limit of 1.5 million m3. Around 697 biomethane filling stations guaranteed the utilization 160 million m3 of biomethane as a transport fuel in 2015.

https://www.longdom.org/open-access/biogas-developments-and-perspectives-in-europe.pdf

Biogas Developments and Perspectives in Europe

A club is a voluntary group of individuals who derive mutual benefit from sharing one or more of the following: production costs, the members' characteristics, or a good characterized by excludable benefits. When production costs are shared and the good is purely private, a private good club is being analyzed (McGuire 1972; Wiseman 1957). If membership characteristics differ and motivate sharing, then membership fees will differ among members (DeSerpa 1977; Scotchmer 1994b; Scotchmer and Wooders 1987). Such fees are nonanonymous , inasmuch as a fee structure is related to the identity and attributes of a member. The focus of our analysis is the sharing of an excludable (rivalrous) public good, which we term a club good . Unless otherwise specified, crowding is assumed to be independent of the individual and hence anonymous. A number of aspects of the club definition deserve highlighting. Privately owned and operated clubs must be voluntary; members choose to belong because they anticipate a net benefit from membership. Thus, the utility jointly derived from membership and from the consumption of other goods must exceed the utility associated with nonmembership status. Furthermore, the net gain in utility from membership must exceed or equal membership fees or toll payments. This voluntarism serves as the first characteristic by which to distinguish between pure public goods and club goods. In the case of a pure public good, voluntarism may be absent, since the good might harm some recipients (e.g., defense to a pacifist, fluoridation to someone who opposes its use).

The theory of externalities, public goods, and club goods: Homogeneous clubs and local public goods

Music, for the longest time, has impacted human lives tremendously. The ability of music to access and activate a wide range of human emotions is sensational. Toward this end, audio features provide a variety of information necessary for sound engineers, music producers, and artists to improve their craft to excite the vast majority of music listeners across the globe. In this paper, analysis of audio features derived using the Spotify web API endpoint and Spotify (Python module for Spotify web servers) is presented. The dataset was curated from audio features of over 160,000 songs released from the year 1921-2020. For clarity, statistical descriptions and probability distribution functions of the audio features are reported. Also, the interrelationship and correlation amongst the various audio features are demonstrated. Overall, the dataset would find useful applications in classical and future music production.

/pdf/analysis-of-sonic-effects-of-music-from-a-comprehensive-4mhm31weji.pdf

Analysis of Sonic Effects of Music from a Comprehensive Datasets on Audio Features

In this paper, we present and analyze comprehensive data about scholarly contributions that were indexed in Scopus database between 2012 and 2017. The datasets are categorized (based on the country where the research was carried out) into: Africa; Asia Pacific; Europe; Middle East; North America; and South America. Scholarly contributions of each region are measured based on fifteen Scival metrics namely: grant award volume (count); grant award volume (value); international collaboration; academic-corporate collaboration; scholarly output; citations; field-weighted citation impact; outputs in top citation percentiles; publications in top journal percentiles; citations per publications; publication views; citing-patents count; patent-cited scholarly output; patent-citations count; and the number of authors. Frequency distributions and trends across the six-year study period are presented in graphs and plots. The analyses provided in this paper are made easy to facilitate further inferential studies towards a more objective and better decision making by research institutions.

Data Analytics: Global Contributions of World Continents to Computer Science Research

The issue of mobility of computers and the applications that run on them has become a prevalent issue in modern day computing. The demand for computing anywhere with anything is increasingly high. Users want to be able to access their documents, use their important applications, and even their entire desktops on the go. They want to be able to do these without having to carry their computer systems everywhere with them. Tablets and “super smart-phones” have done a lot to an extent to resolve some of these issues as they are very light and easy to carry around and can carry out a couple of the tasks that the normal computer system should carry. But still these devices are too small (in terms of memory) to be really able to carry the many applications a user needs, or let alone process them. Also because of flexibility users would like to access the same thing with any device, instead of being tied to one device. Cloud computing and virtualization provide a solution to all of these issues and even more. They provide several consolidation and virtual solutions that help make data recovery and data redundancy easier, maintenance and management of information technology easier, and even reduce information technology costs. Small and medium enterprises recognise that technology is critical for growth, productivity and competitiveness, but high costs, access to scarce skills, and the retention of legacy information technology systems often make it difficult to maximize the return on investment and benefits that modern technology offers. Cloud computing and virtualization offers a solution to this dilemma also. By using software applications accessed over the web, these enterprises can take advantage of functionality that would otherwise only be affordable by large enterprises. These services provided to the small and medium enterprises are provided at a pay-as-you-go basis. Also the enterprises can pay for what they need as the business expands or contracts. Issues such as buying hardware, providing technical support, and recruiting specialist information technology skills are removed, allowing the managers of these establishments to concentrate on sales, growth and profitability. [1] Keywords-Virtualization, Cloud Computing, Virtual Computing

Design and implementation of a virtual computing environment for schools and offices

Access to information and communication infrastructure greatly enhances economic growth. When a reliable and affordable medium for information exchange is available, previously unanticipated developments ensue. Most areas in developing countries are sparsely populated and highly rural. Satellite communication is an excellent option for meeting this and many other pressing communication needs of developing economies. This paper examines the impact of satellite communication on developing economies, using popular examples as case study.

Satellite Communications: Impact on Developing Economies

Image retrieval via traditional Content-Based Image Retrieval (CBIR) often incurs the semantic gap problem—non-correlation of image retrieval results with human semantic interpretation of images. In this paper, Relevance Feedback (RF) mechanism was incorporated into a traditional Query by Visual Example CBIR (QVER) system. The inherent curse of dimensionality associated with RF mechanism was catered for by performing feature selection using Principal Component Analysis (PCA). The amount of feature dimension retained was determined based on a not more than 5% loss constrain imposed on average precision of retrieval result. While the asymmetry and small sample size nature of the resultant image dataset informed the use of a modified One-Class Support Vector Machine (OC-SVM) classifier, three image databases (DB10, DB20 and DB100) were used to test the OC-SVM RF mechanism. Across DB10, DB20 and DB100, Average Indexing Time of 0.451, 0.3017, and 0.0904s were recorded, respectively. For a critical reca...

Aderemi A. Atayero

Papers

Analysis of Sonic Effects of Music from a Comprehensive Datasets on Audio Features

Data Analytics: Global Contributions of World Continents to Computer Science Research

Design and implementation of a virtual computing environment for schools and offices

Satellite Communications: Impact on Developing Economies

Modified one-class support vector machine for content-based image retrieval with relevance feedback