500 research outputs found
Achieving Large Multiplexing Gain in Distributed Antenna Systems via Cooperation with pCell Technology
In this paper we present pCellTM technology, the first commercial-grade
wireless system that employs cooperation between distributed transceiver
stations to create concurrent data links to multiple users in the same
spectrum. First we analyze the per-user signal-to-interference-plus-noise ratio
(SINR) employing a geometrical spatial channel model to define volumes in space
of coherent signal around user antennas (or personal cells, i.e., pCells). Then
we describe the system architecture consisting of a general-purpose-processor
(GPP) based software-defined radio (SDR) wireless platform implementing a
real-time LTE protocol stack to communicate with off-the-shelf LTE devices.
Finally we present experimental results demonstrating up to 16 concurrent
spatial channels for an aggregate average spectral efficiency of 59.3 bps/Hz in
the downlink and 27.5 bps/Hz in the uplink, providing data rates of 200 Mbps
downlink and 25 Mbps uplink in 5 MHz of TDD spectrum.Comment: IEEE Asilomar Conference on Signals, Systems, and Computers, Nov.
8-11th 2015, Pacific Grove, CA, US
Microgravity and Its Applications in Geosciences
Gravity is the most important force which determines the structure and evolution of stars like the Sun as well as the structure and evolution of galaxies. The law of universal gravitation is generally sufficient to describe the gravity of the Earth, the Moon, or the planets orbiting the Sun. With the recent development of sensitive gravimeters, the gravity survey has become one of the most used geophysical tools in applied geosciences for tasks including: exploring for oil and gas fields by studying geological structures and salt dome intrusion, monitoring groundwater and geothermal reservoirs by determining recharge and discharge masses, monitoring volcanic activity and hydrothermal activity beneath volcanoes, monitoring CO2 movement during and after sequestration, locating active faults responsible for big earthquakes, and also exploring mines and detecting local cavities. In this chapter, we present a brief introduction to gravity and Bouguer gravity, the different corrections applied to measured gravity and follow with cases of applied microgravity measurements in different fields of geosciences
DISAIN PENCIPTAAN FILM PAKASIAH BABIOLA
Minang Creating the fictional film "Pakasiah Biola" departs from several parts of the film's elements, where the film, when viewed from a genre perspective, is divided into three parts, namely fiction films, documentary films, and experimental films. The choice of the fiction genre that the author makes here is because films with that genre have a very wide space in transforming ideas and space to realize the imaginative thoughts that the author gets when analyzing the script "Pakasiah Biola" either visually/cinematically or narratively. In the concept of the work of Pakasiah Biola that will be made, the artist creates a film based on Bazin's thinking, and there are 7 things that become elements of the realist film structure, which include: relatively simple stories, reallocation, real setting unprofessional actors, deep-focus, long-take and minimize editingKeywords: Pakasiah Violin; Fiction Movies; Fiction Genre.AbstrakMenciptakan film fiksi “Pakasiah Biola”, berangkat dari beberapa bagian unsur film, dimana film apabila ditinjau dari segi genre dibagi menjadi tiga bagian yaitu film fiksi, film dokumenter dan film experimental. Pilihan terhadap genre fiksi yang pengkarya lakukan disini karena dalam film dengan genre tersebut memiliki ruang yang sangat luas dalam mentransformasikan ide-ide dan ruang untuk merealisasikan pemikiran-pemikiran imajinatif yang pengkarya peroleh ketika menganalisa naskah “Pakasiah Biola” baik secara visual/cinematic ataupun secara naratif.Pada konsep garapan karya film Pakasiah Biola yang akan dibuat, pengkarya menciptakan film berdasarkan pemikiran Bazin terdapat 7 hal yang menjadi elemen struktur film realis, yang meliputi: relative simple strories, real location, real setting unprofessional actors, deep-fosus, longtake, dan minimize editingKata Kunci: Pakasiah Biola; Film Fiksi; Genre Fiksi.
The Formation of Minangkabau Language Absorption Elements in Enriching the Indonesian Language
The word absorption in the Indonesian language is a word that comes from the local language and foreign language and the way of writing where there is a change in the in it or vice versa. One of the elements of the uptake of regional languages in the Indonesian language comes from Minangkabau language. The contribution of the Minangkabau language vocabulary in the Indonesian language occurs in its entirety and some adjustments. The vocabulary of the Minangkabau language in the Huge Indonesian Dictionary (KBBI) is, among others, absorbed in the formation of sound changes that are easily recognized by the user community, such as phoneme changes in the word rangkik in Minangkabu language (BM) changed into the word rengkit in Indonesian language (BI) ’weary’, dunsanak (BM) becomes dansanak (BI) ’relatives’; the removal of the phoneme coga (BM) becomes cogah (BI), dia (BM) becomes diar (BI) ’let’, there is also a fully absorbed BM element, such as bacak (BM) to bacak (BI) ’freckled’ muno (BM) becomes muno (BI) ’lost memory’. The policy of the relationship between Indonesian and local languages in order to make Indonesian people can put precisely the position and function of Indonesian language and regional languages in bilingual situation.
Keywords: absorption element, Minangkabau language, Indonesian languag
Example of Disulfide Conformational Change in the Solid State: Preparation, Optical Properties, and X-ray Studies of a Cystamine-Based Iodoplombate Hybrid
A novel cystamine-based hybrid, namely, α-[NH3(CH2)2SS(CH2)2NH3PbI6]·2H3O (1a), was prepared under solvothermal conditions. Interestingly, 1a, which is built up from isolated PbI6 octahedra, can be easily changed into its polymorph, namely, β-[NH3(CH2)2S–S(CH2)2NH3PbI6]·2H3O (1b) only by heating it up to 45 °C. According to the results of X-ray diffraction analyses, the polymorphic phenomenon of 1a and 1b results from a conformational change in the helical diprotonated cystamine cation in the solid state. Both 1a and 1b crystallized in the orthorhombic Pna21 space group. The reversibility of this transformation is proved by single-crystal X-ray diffraction and second harmonic generation measurements
Every Part of Yeast is the Best Part
Yeasts are single-cell, eukaryotic microorganisms classified in the fungi kingdom. They are generally around 10μm in size, have a nuclear membrane, a cell wall, and a cytoplasmic content. Yeasts are characterized as heterotrophs, which means they rely on organic material as sources of energy and nutrients. Not all yeasts are equal. There are about 60 genera and about 1,500 species of yeasts. Only a few are used commercially. Thanks to its exceptional fermentative capacities and nutritional properties, Saccharomyces cerevisiae is the main yeast used in food, beverage and baking as well as in animal nutrition. The main types of yeasts and yeast products used in animal nutrition are live yeast probiotics, whole cell inactivated yeasts and yeast cultures, autolyzed yeasts, hydrolyzed yeasts, and yeast fractions such as yeast cell walls and yeast extracts
Les contaminants organiques à l’état de trace dans les biosolides municipaux : de la détection à l’élimination
Les contaminants organiques ainsi que la gestion des déchets générés sont des enjeux majeurs pour la sphère scientifique, politique et sociétale. Ces contaminants sont généralement retrouvés dans toutes les strates environnementales (ex. les eaux usées, les biosolides municipaux) et en faibles quantités.
Malgré le nombre élevé et grandissant des recherches entreprises sur les contaminants organiques à l’état de trace, leurs comportements et leur devenir dans des matrices complexes type biosolides municipaux restent toujours à investiguer. Dans ce contexte, il devient important d’avoir une stratégie spécifique permettant la gestion et l’élimination des contaminants présents dans les biosolides municipaux.
Pour répondre à cette problématique, les objectifs de cette recherche incluent le développement et la validation d’une méthode analytique par chromatographie liquide, couplé à un détecteur de masse en tandem. Ce développement permet la détection et la quantification multirésidus applicable à l’analyse des contaminants émergents dans les biosolides municipaux, mais également dans plusieurs matrices complexes environnementales. Ces méthodes ont permis l’établissement de rapports de caractérisations de deux stations d’épuration du Québec pour une meilleure vision de la charge et de la nature des contaminants d’intérêts.
Le manque d’efficacité observée des procédés conventionnels des stations d’épuration, implique la mise en place d’une stratégie alternative d’élimination des contaminants ciblés notamment dans les biosolides municipaux. La voie fongique est un procédé prometteur et cette approche biotechnologique nous a permis de supporter l’efficacité des souches fongique à réduire la charge en contaminants, mais également à réduire le volume des biosolides générés et cela de manière concomitante.
Cette thèse contribue à l’amélioration des connaissances concernant les contaminants organiques dans l’environnement. Elle démontre l’intérêt de mettre continuellement en place des outils aussi bien analytique que biotechnologique permettant l’étude de leurs présences et leurs comportements dans les stations d’épuration et l’environnement
Preposition of Customary Language on Manjapuik Marapulai of Pasambahan Text in Solok City, West Sumatera
This study aims to describe the preposition of the various convention languages in the text of Pasambahan Manjapuik Marapulai (hereinafter abbreviated as TPMM) in Solok City, West Sumatera. TPMM is one of a series of marriage ceremonies carried out according to Minangkabau custom in Solok City. The method in this study uses a qualitative descriptive method with the object of study in the form of prepositions in TPMM. The research data is in the form of sentences containing prepositional phrases contained in the TPMM. For data collection, the listening method was used with note-taking techniques. Furthermore, to analyze the data, the distribution method was used with the direct element division technique as a basic technique and an advanced technique in the form of marking reading techniques. The results of the research show that the prepositional forms found are the basic prepositions and the derived forms in the form of combined prepositions of type the meaning found is the place of being, the place of origin, the place of destination, origin, a certain place, comparison, and inclusion. AbstrakPenelitian ini bertujuan untuk mendeskripsikan preposisi bahasa ragam adat dalam teks Pasambahan Manjapuik Marapulai (selanjutnya disingkat dengan TPMM) di Kota Solok, Sumatera Barat. TPMM adalah salah satu rangkaian upacara proses perkawinan yang dilakukan secara adat Minangkabau di Kota Solok. Metode dalam penelitian ini menggunakan metode deskriptif kualitatif dengan objek kajian berupa preposisi dalam TPMM. Data penelitian ini berupa kalimat yang mengandung frasa preposisional yang terdapat dalam TPMM. Untuk pengumpulan data digunakan metode simak dengan teknik catat. Selanjutnya, untuk menganalisis data digunakan metode agih dengan teknik bagi unsur langsung sebagai teknik dasar dan teknik lanjutan berupa teknik baca markah. Hasil penelitian menunjukkan bahwa bentuk preposisi yang ditemukan adalah preposisi bentuk dasar dan bentuk turunan berupa preposisi gabungan. Jenis makna yang ditemukan adalah tempat berada, tempat asal, tempat tujuan, tempat tertentu; perbandingan, dan kesertaan
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