401 research outputs found
THE COLLABORATION EFFECTIVENESS AND EFFICIENCY IN A VIRTUAL ENTERPRISE
No full textAn important number of factors are creating different types of barriers among the members of a virtual enterprise affecting the collaboration between them. In our attempt to study the evolution of importance of these factors we have chose a set of three studies published in the last decade and a half, which we consider as relevant. This study aims to identify new research directions for mitigating the effects of collaboration barriers by highlighting the most important factors and how they affect the effectiveness or efficiency of collaboration.virtual enterprise, collaboration, effectiveness, efficiency.
Analisis Struktur Musik dan Teknik dalam Penyajian “Partita in A Minor” (BWV 1013) untuk Alto Saksofon
No full textArtikel ini menyajikan hasil analisis struktur musik dan teknik ekspresif Partita in A minor karya Johann Sebastian Bach (BWV 1013). Repertoar Partita in A minor (BWV 1013) karya Johann Sebastian Bach awalnya dibuat untuk solo flute, tetapi telah disajikan sebagai solo saksofon alto untuk tujuan pertunjukan. Rumusan masalahnya adalah adanya perbedaan teknik bermain antara flute dan alto saxophone yang menimbulkan beberapa tantangan dalam merepresentasikan frase musik dalam repertoar. Permasalahan yang timbul pada pertunjukan alto saxophone akan kami jelaskan berdasarkan metode penelitian kualitatif yang menyajikan analisis musikologis secara mudah dipahami. Kebaruan artikel ini adalah menyajikan analisis struktur musik dan tugas pertunjukan solo alto saxophone. Repertoar ini awalnya ditujukan untuk pertunjukan seruling solo tanpa pengiring. Studi ini menunjukkan bahwa meskipun repertoar instrumen seruling memiliki perbedaan yang signifikan dalam timbre dan frase napas, instrumen ini memiliki beberapa kesamaan dalam hal jangkauan dan organologis , sehingga sangat mirip dengan pertunjukan alto saxophone. Kami menyimpulkan bahwa ini cocok untuk Pengaruh terbesarnya adalah cara memainkannya dengan tempo yang lebih lambat dibandingkan permainan seruling.Penulis berharap penelitian ini dapat mendorong musisi lain untuk menyalin dan menampilkan repertoar klasik yang lebih luas, mulai dari instrumen seruling hingga saksofon.This article presents an analysis of the results of the musical structure and expressive techniques of Johann Sebastian Bach's Partita in A minor (BWV 1013). Johann Sebastian Bach's Partita in A minor (BWV 1013) repertoire was originally composed for flute solo, but has been presented as an alto saxophone solo for performance purposes. The formulation of the problem is that there are diferences in playing techniques between flute and alto saxophone which pose several challenges in representing musical phrases in the repertoire. We will explain the problems that arise in alto saxophone performances based on qualitative research methods that present easy-to-understand mttsicological analysis. This novelty article presents an analysis of the musical structure and tasks of alto saxophone solo performance. This repertoire was originally intended for solo flute performances without accompaniment. This study shows that although the repertoire of flute instruments has significant diferences in timbre and breath phrasing, these instruments share some similaities in terms of range and organology, making them very similar to alto saxophone performance. We conclude that it is siitable for the biggest influence is the way it is played at a slower tempo than flute playing. The author hopes that this research can encourage other musicians to copy and perform a wider classical repertoire, from flute instruments to saxophones
Analisis Struktur Musik dan Teknik dalam Penyajian "Partita in A Minor" (BWV 1013) untuk Alto Saksofon
No full textArtikel ini menyajikan hasil analisis struktur musik dan teknik penyajian “Partita in A Minor” (BWV 1013), karya Johann Sebastian Bach. Repertoar “Partita in A Minor” (BWV 1013), karya Johann Sebastian Bach aslinya digubah untuk solo flute, namun untuk kepentingan pementasan, disajikan dalam permainan solo saksofon alto. Rumusan masalah yang muncul adalah terdapatnya perbedaan dalam teknik permainan antara flute dan saksofon alto sehingga menghadirkan beberapa tantangan dalam mengartikulasikan kalimat-kalimat musik dalam repertoar tersebut. Hal-hal yang muncul dalam permainan saksofon alto dipaparkan berdasarkan metode penelitian kualitatif dengan pemaparan secara deskriptif analisis musikologis. Bentuk kebaruan dalam artikel ini adalah menyajikan analisis struktur musik dan tantangan dalam permainan solo saksofon alto, karena repertoar ini aslinya untuk solo flute tanpa iringan. Melalui kajian ini disimpulkan bahwa repertoar untuk instrumen flute sangat memungkinkan dimainkan alto saksofon karena memiliki beberapa persamaan dalam hal register suara dan klaviatur organologis, meskipun juga memiliki perbedaan yang cukup signifikan pada warna suara dan frasering pernafasan. Pengaruh yang paling signifikan adalah cara penyajian dalam tempo yang lebih lambat dari permainan flute. Penulis berharap bahwa penelitian ini dapat memberi dorongan kepada para musisi lainnya untuk mentranskipsi atau memainkan repertoar-repertoar klasik instrumen flute ke saksofon menjadi semakin masif.AbstractAnalysis of Musical Structure and Technique in the Presentation of "Partita in A Minor" (BWV 1013) for Alto Saxophone. This article presents the results of an analysis of the musical structure and performing technique of "Partita in A Minor" (BWV 1013) by Johann Sebastian Bach, an alto saxophone soloist whose original repertoire was composed for solo flute. The formulation of the problem that arises is that there are differences in playing techniques between the flute and the alto saxophone, which present several challenges in articulating the musical sentences in the repertoire. Any things that appear in alto saxophone playing are explained based on qualitative research methods with a descriptive presentation of musicological analysis. This article's novelty is that it analyzes the musical structure and challenges in alto saxophone solo playing because this repertoire was originally for unaccompanied flute solos. This study concluded that the repertoire for the flute instrument could be played on the alto saxophone because it has several similarities in register and organological claviature. However, there are also significant differences in timbres and breathing phrasing. The primary influence factor is executing this repertoire at a reduced pace compared to the original flute. The author hopes this research can encourage other musicians to transcribe or play the classical repertoire from flute instruments to the saxophone more massively.Keywords: Partita in A minor; classical; articulating; flute; alto saxophon
Deskripsi Teknik Pembuatan dan Teknik Permainan "Sulim Batak Toba" oleh Marsius Sitohang di Kelurahan Timbang Deli, Kecamatan Amplas, Kota Medan
No full textSulim (flute) is a bamboo blow instrument origin from Batak Toba, North Sumatra. This instrument is classified as an aerophone with a side blown flute specification, which consists of a blow hole and 6 (six) tone holes. Sulim belongs to the type of Solo Instrument or a single instrument that is usually used by someone as a medium of entertainment to express his feelings. In daily life, this instrument is commonly used by someone in their spare time, either when herding buffalos, take care of the rice fields, and playing or while doing other activities. In this era, Sulim usually collaborates with other musical ensembles such as: Taganing, Garantung, Hasapi, and others at Batak Toba traditional ceremonies. The aim of this research is to determine the technique of making Sulim and the technique of playing Sulim by Mr. Marsius Sitohang. The theory that the author uses is a structural and functional approach theory by "Shusumu Khasima and "CurtSach & Hornbostel" which is a classification system of musical instruments based on the source of the main vibrating sound. The method in this research uses descriptive and qualitative methods by Koentjaraningrat with data collection, observation methods, documentation, field notes, direct interviews, and literature study. The result of this study is a Sulim made by Mr. Marsius Sitohang with the basic tone F=Do and knowledge of the technique of making Sulim and the technique of playing Sulim by Mr. Marsius Sitohang.Sulim (seruling) adalah salah satu instrumen tiup bambu yang berasal dari daerah Batak Toba, Sumatera Utara. Instrumen ini tergolong jenis aerophone dengan spesifikasi side blown flute, yang terdiri dari sebuah lobang tiupan dan 6 (enam) buah lobang nada. Sulim tergolong kepada jenis Solo Instrument atau Instrumen tunggal yang biasa di pakai oleh seseorang sebagai media hiburan untuk mengungkapkan perasaannya. Dalam kehidupan sehari – hari, instrumen ini lazim di pakai oleh seseorang di waktu – waktu senggang , baik ketika menggembalakan kerbau, menjaga sawah, dan bermain ataupun saat melakukan berbagai aktivitas lainnya. Di zaman sekarang ini, Sulim sudah biasa di kolaborasikan dengan Ansambel musik lain seperti: Taganing, Garantung, Hasapi,dan lain-lain pada upacara adat Batak Toba.
Penelitian ini bertujuan untuk mengetahui teknik pembuatan Sulim dan teknik permainan Sulim oleh Bapak Marsius Sitohang. Teori yang penulis gunakan adalah teori pendekatan secara structural dan fungsional oleh “Shusumu Khasima dan “CurtSach & Hornbostel” yaitu system pengklasifikasian alat musik berdasarkan sumber penggetar utama bunyinya. Metode dalam penelitian ini menggunakan metode deskriptif dan kualitatif oleh Koentjaraningrat dengan pengumpulan data, metode observasi, dokumentasi, catatan lapangan, wawancara langsung, dan studi kepustakaan.
Hasil yang didapatkan dari penelitian ini adalah satu buah Sulim buatan Bapak Marsius Sitohang dengan nada dasar F=Do serta ilmu dalam teknik pembuatan dan teknik permainan sulim oleh Bapak Marsius Sitohang.91 HalamanSkripsi Sarjan
Intervention publique et sociabilité. Essai sur le problème de l'insécurité en France
No full textDer Autor unternimmt den Versuch, zwei verschiedene Ebenen einander anzunahern: die Analyse des Geflechts zwischenmenschlischer Beziehungen und die des öffentlichen Eingreifens. Er vertritt die Ansicht, dass Massnahmen zur Behebung der Unsicherheit nicht auf einer tnigerischen Wiederherstellung einer Gemeinschaft beruhen durften, sondern auf mikro-politischer Ebene angesiedelt sein und den Veranderungen in der Lebensweise gerecht werden mussten. So mussten derartige Massnahmen in einem ersten Schritt die Ver- änderungen im familialen und nachbarschaftlichen Beziehungsgefûge anerkennen, anstatt die Gemeinschaftsfähigkeit zu idealisieren und als einen notwendigen Bestandteil des sozialen Zusammenhalts darzustellen; weiterhin müssten sie den Personen Hilfestellung leisten, die sich aus dem Gefüge befreien wollten, aber dazu aus eigener Kraft nient in der Lage seien.This paper is an attempt to link the results of two a priori distinct research areas: interpersonal networks and public intervention. The author claims that the fight against the emergence of insecurity is by no means possible on a community basis: it must take into account the mutation of life-styles. Public intervention should 1/ recognize the transformation of both neighborhood — and family — interpersonal-networks instead of trying to restore fantasmagorie (i.e. ideal and non-real) comunities; 2/ stimulate a micro-political link and not a social link (i.e. total insertion) between the individuals living in problem areas.L'auteur tente de rapprocher les niveaux micro- et macro-sociaux: l'analyse des réseaux de sociabilité et des interventions publiques en matière de sécurité. Il défend l'idée que le règlement de l'insécurité ne passera pas par la fantasmagorique restauration de communautés mais par la stimulation d'un lien micropolitique en phase avec la mutation des styles de vie. Pour lutter contre l'insécurité, les interventions publiques devraient reconnaître plus complètement la mutation des sociabilités familiale ou de voisinage et doter de moyens les individus qui désirent s'en affranchir sans le pouvoir, plutôt que d'idéaliser ces sociabilités et d'en faire le passage obligé de la cohésion sociale.De auteur tracht de sociale micro- en macro-niveau's met elkaar te verbinden: de analyse van de sociabiliteitsnetten en de tussenkomsten van de overheid inzake veiligheid. Hij verdedigt de idee dat de oplossing van het onveiligheids- probleem niet te vinden is in een zinsbedrieglijk herstel van gemeenschappen maar in een verandering in levensstijl. Om de onveiligheid te bekampen zouden de tussenkomsten van de overheid de veranderingen inzake sociabiliteit van gezin of buurt tenvolle moeten erkennen en de individuen die er iets willen aan doen voorzien van middelen, veeleer dan de sociabiliteit te idealiseren en er een dwingende overgangsfase naar sociale samenhang van te maken.Roche Sebastian. Intervention publique et sociabilité. Essai sur le problème de l'insécurité en France. In: Déviance et société. 1990 - Vol. 14 - N°1. pp. 1-16
LANDSCAPING APPROACH OF THE PROJECT: RESTAURATION AND REABILITHATION OF ARCALIA ARBORETUM
No full textIn the last decades, the restoration and rehabilitation works for Romanian historical monuments took a quite great dimension. On the other side, approaching the historical landscape requires a close-up view of the whole issues regarding re-construction of those sites, and their reinstatement in the present context. For the Arcalia Arboretum, a team of landscapers took the task of restoration all vegetation elements. First, an inventory was made for all trees and shrubs, late in the year 2014. This inventory was compared with a former inventory, back in ’70, the best preserved from the past. All the rehabilitation proposals aimed both dendrological and maintenance aspects
Reduction of wave overtopping and force impact at harbor quays due to very oblique waves
No full textPhysical model experiments were conducted in a wave tank at Flanders Hydraulics Research, Antwerp, Belgium, to characterize the wave overtopping and impact force on vertical quay walls and sloping sea dike (1:2.5) under very oblique wave attack (angle between 45° and 80°). This study was triggered by the scarce scientific literature on the overtopping and force reduction due to very oblique waves since large reduction is expected for both when compared with the perpendicular wave attack. The study aimed to compare the results from the experimental tests with formulas derived from previous experiments and applicable to a Belgian harbor generic case. The influence of storm return walls and crest berm width on top of the dikes has been analyzed in combination with the wave obliqueness. The results indicate significant reduction of the overtopping due to very oblique waves and new reduction coefficients were proposed. When compared with formulas from previous studies the proposed coefficients indicate the best fit for the overtopping reduction. Position of the storm return wall respect to the quay edge rather than its height was found to be more important for preventing wave induced overtopping. The force reduction is up to approximately 50% for the oblique waves with respect to the perpendicular wave impact and reduction coefficients were proposed for two different configurations a sea dike and vertical quay wall, respectively.Environmental Fluid Mechanic
Introduction to DATA SCIENCE. A PYTHON Path for a Non-computer Scientist
No full textAsking yourself the most important questions is a good way to introduce a book dedicated to Data Science because it helps to set the stage for the material that will be covered in the book. By asking questions, you can get a sense of what the book will be about and what you can expect to learn from it. Additionally, asking questions can help to engage the reader and get them thinking about the topic at hand, which can make the material more interesting and relevant to their own experiences. So, the first legitimate question is why is Data Science today a discipline of great importance for the present and future of master students? For sure, Data Science is a discipline of great importance today because it allows organizations to make better decisions by leveraging the vast amounts of data that are generated in today’s world. With the help of Data Science, organizations can gain insights into their operations and customers, and use that information to improve their products, services, and overall business strategies. Additionally, Data Science is a rapidly growing field, with many job opportunities for individuals with the right skills and training. As a result, pursuing a master’s degree in communication and Data Science can open a wide range of career possibilities for students.In this must-read book, discover the world of Data Science and how it is reshaping the present and future for master students. Through thought-provoking questions and engaging material, the author sets the stage for an indepth exploration of this rapidly growing field. Discover why Data Science is a discipline of great importance and how it can be used to unlock the power of information for organizations. Whether you're a student, professional, or simply curious about the future of technology, this book is an essential guide to understanding the role of Data Science in our world.
"Sebastian Fitzek's book deals with an extremely topical and valuable multidisciplinary scientific field, in continuous expansion in the world, decoded and used lately not only by computer scientists and engineers, but also by specialists in the social sciences (business, advertising, elections, media, communication, in general). The work is coherently organized and well-balanced to allow an easy, clear and fast learning, managing to overcome the obstacles specific to books in the applied sciences. The success of this book also comes from the very well-structured, new, attractive and intelligent content, which saves time for those who want to become data science specialists". – Conf. univ. dr. DAN SULTĂNESC
Non-Hydrostatic Modelling of Coastal Flooding in Port Environments
No full textUnderstanding key flooding processes such as wave overtopping and overflow (i.e., water flows over a structure when the crest level of the structure is lower than the water level in front) is crucial for coastal management and coastal safety assessment. In port and harbour environments, waves are not only perpendicular to the coastal structure but also very oblique, with wavefronts almost perpendicular to the main infrastructures in the harbour docks. Propagation and wave–structure interaction of such perpendicular and (very) oblique waves need to be appropriately modelled to estimate wave overtopping properly. Overflow can also be critical for estimating flooding behind any coastal defence. In this study, such oblique and parallel waves (i.e., main wave direction is parallel to the structures) are modelled in a non-hydrostatic wave model and validated with physical model tests in the literature. On top, overflow is also modelled and validated using an existing empirical formula. The model gives convincing behaviours on the wave overtopping and overflow
Implementation of Web Query Languages Reconsidered
No full textVisions of the next generation Web such as the "Semantic Web" or the "Web 2.0" have triggered the emergence of a multitude of data formats. These formats have different characteristics as far as the shape of data is concerned (for example tree- vs. graph-shaped). They are accompanied by a puzzlingly large number of query languages each limited to one data format. Thus, a key feature of the Web, namely to make it possible to access anything published by anyone, is compromised.
This thesis is devoted to versatile query languages capable of accessing data in a variety of Web formats. The issue is addressed from three angles: language design, common, yet uniform semantics, and common, yet uniform evaluation. % Thus it is divided in three parts:
First, we consider the query language Xcerpt as an example of the advocated class of versatile Web query languages. Using this concrete exemplar allows us to clarify and discuss the vision of versatility in detail.
Second, a number of query languages, XPath, XQuery, SPARQL, and Xcerpt, are translated into a common intermediary language, CIQLog. This language has a purely logical semantics, which makes it easily amenable to optimizations. As a side effect, this provides the, to the best of our knowledge, first logical semantics for XQuery and SPARQL. It is a very useful tool for understanding the commonalities and differences of the considered languages.
Third, the intermediate logical language is translated into a query algebra, CIQCAG. The core feature of CIQCAG is that it scales from tree- to graph-shaped data and queries without efficiency losses when tree-data and -queries are considered: it is shown that, in these cases, optimal complexities are achieved. CIQCAG is also shown to evaluate each of the aforementioned query languages with a complexity at least as good as the best known evaluation methods so far. For example, navigational XPath is evaluated with space complexity O(q d) and time complexity O(q n) where q is the query size, n the data size, and d the depth of the (tree-shaped) data.
CIQCAG is further shown to provide linear time and space evaluation of tree-shaped queries for a larger class of graph-shaped data than any method previously proposed. This larger class of graph-shaped data, called continuous-image graphs, short CIGs, is introduced for the first time in this thesis. A (directed) graph is a CIG if its nodes can be totally ordered in such a manner that, for this order, the children of any node form a continuous interval.
CIQCAG achieves these properties by employing a novel data structure, called sequence map, that allows an efficient evaluation of tree-shaped queries, or of tree-shaped cores of graph-shaped queries on any graph-shaped data. While being ideally suited to trees and CIGs, the data structure gracefully degrades to unrestricted graphs. It yields a remarkably efficient evaluation on graph-shaped data that only a few edges prevent from being trees or CIGs
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