50,661 research outputs found
Near-capacity code design for entanglement-assisted classical communication over quantum depolarizing channels
No full textWe have conceived a near-capacity code design for entanglement-assisted classical communication over the quantum depolarizing channel. The proposed system relies on efficient near-capacity classical code designs for approaching the entanglement-assisted classical capacity of a quantum depolarizing channel. It incorporates an Irregular Convolutional Code (IRCC), a Unity Rate Code (URC) and a soft-decision aided Superdense Code (SD), which is hence referred to as an IRCC-URC-SD arrangement. Furthermore, the entanglement-assisted classical capacity of an N-qubit superdense code transmitted over a depolarizing channel is invoked for benchmarking. It is demonstrated that the proposed system operates within 0.4 dB of the achievable noise limit for both 2-qubit as well as 3-qubit SD schemes. More specifically, our design exhibits a deviation of only 0.062 and 0.031 classical bits per channel use from the corresponding 2-qubit and 3-qubit capacity limits, respectively. The proposed system is also benchmarked against the classical convolutional and turbo codes
Coming Soon!
No full text"Coming Soon! documents Diyan Achjadi’s 2018-19 public art project for the City of Vancouver. The project was a site-specific interrogation of questions of value, temporality and labour. Each month for the period of one year, Achjadi produced a series of hand-printed posters and installed them onto the structures surrounding construction sites throughout the city, mirroring the landscapes around new developments themselves. Over the course of that time the posters—hand-drawn and hand-printed through laborious processes of silkscreen, etching, lithography and polymer plate relief—accumulated and, left to the effects of the elements and actions of passersby, decayed, were transformed by graffiti and even removed." -- Publisher's website
Soon we will become output
No full text'Soon we will become output' brings together a set of new works in audio, film and text that have emerged from Charlie Tweed’s PhD research project investigating the history, materialities and agency of machinic technologies and their relation to the manipulation of the earth and the production of the anthropocene.
The central focus of the exhibition is a large scale audio work that channels the utterances of the post-human ‘ghosts’ of obsolete and decaying ‘technologies’ who transmit from below the surface of an e-waste site in Guiyu, China.
The transmitted voices exist across multiple timeframes and materialities, from lines of code to seismic devices, digital images to consumer electronics who occasionally swarm together to chant and sing responses to their condition. The work is part elegy to human machines and part exposure device; bringing into view a mesh of interrelations between human and nonhuman actors and the machinic production of a human initiated geological period.
A number of recent video works will also be on display. These include Oporavak (2016) which uses the language of ‘information recovery’ to manipulate all sorts of digital and non-digital materials and Archimeters (2012) which outlines a plan for a fully integrated auto-poietic, auto-effective mechanism.
The exhibition will include the launch of a new publication ’The Signal and the rock’ which is in part a manifesto and also an assemblage of notes that contextualises and amplifies the work on display
Incremental Nonlinear Stability Analysis of Stochastic Systems Perturbed by L\'{e}vy Noise
No full textWe present a theoretical framework for characterizing incremental stability
of nonlinear stochastic systems perturbed by compound Poisson shot noise and
finite-measure L\'{e}vy noise. For each noise type, we compare trajectories of
the perturbed system with distinct noise sample paths against trajectories of
the nominal, unperturbed system. We show that for a finite number of jumps
arising from the noise process, the mean-squared error between the trajectories
exponentially converge towards a bounded error ball across a finite interval of
time under practical boundedness assumptions. The convergence rate for shot
noise systems is the same as the exponentially-stable nominal system, but with
a tradeoff between the parameters of the shot noise process and the size of the
error ball. The convergence rate and the error ball for the L\'{e}vy noise
system are shown to be nearly direct sums of the respective quantities for the
shot and white noise systems separately, a result which is analogous to the
L\'{e}vy-Khintchine theorem. We demonstrate our results using several numerical
case studies.Comment: To be published. See
https://onlinelibrary.wiley.com/doi/10.1002/rnc.6216 for final versio
Modulation-Mode Assignment for SVD-Aided and BICM-Assisted Spatial Division Multiplexing
No full textIn this contribution the number of activated MIMO layers and the number of bits per symbol along with the appropriate allocation of the transmit power and the rate of the BICM error correcting codes are jointly optimized under the constraint of a given fixed data throughput. The performance investigations are carried out by computer simulations and confirmed by the EXIT charts. Our results show that not necessarily all MIMO layers have to be activated in order to achieve the best BERs
Near-capacity iterative decoding of binary self-concatenated codes using soft decision demapping and 3-D EXIT charts
No full textIn this paper 3-D Extrinsic Information Transfer (EXIT) charts are used to design binary Self-Concatenated Convolutional Codes employing Iterative Decoding (SECCC-ID), exchanging extrinsic information with the soft-decision demapper to approach the channel capacity. Recursive Systematic Convolutional (RSC) codes are selected as constituent codes, an interleaver is used for randomising the extrinsic information exchange of the constituent codes, while a puncturer helps to increase the achievable bandwidth efficiency. The convergence behaviour of the decoder is analysed with the aid of bit-based 3-D EXIT charts, for accurately calculating the operating EbN0 threshold, especially when SP based soft demapper is employed. Finally, we propose an attractive system configuration, which is capable of operating within about 1 dB from the channel capacity
HPLC data for plasma Vitamin C and Vitamin E
No full textHPLC plots for serum vitamin C and E from normal volunteers and patients with vitligo collected between 2017-201
Italliaŏwa Han'gugŏ myŏngsaguna'e t'ongsajŏk kyeche'ŭng pijyo yŏn'gu (Sintassi del Sintagma Nominale in Italiano e in Coreano)
No full textIl saggio "La sintassi dei sintagmi nominali in coreano e italiano", contenuto nel volume Grammar, Text and Teaching Korean, è dedicato all'analisi comparata delle strutture dei sintagmi nominali in italiano e coreano. Basandosi sulle influenti teorie di Kayne (1994) e Cinque (1994, 2005b, 2010), il lavoro esplora la disposizione lineare degli elementi all'interno dei gruppi nominali e le conseguenti implicazioni per la gerarchia sintattica nelle due lingue. Particolare attenzione è rivolta all'ordine degli aggettivi, che varia tra posizioni prenominali e postnominali, evidenziando divergenze nelle origini generative e nelle ricadute semantiche. Questo studio non solo chiarisce le restrizioni nell'ordine degli elementi, ma illustra anche come la linearità modelli la struttura gerarchica dei sintagmi nominali. In conclusione, il saggio afferma che la configurazione degli elementi nominali, inclusi gli aggettivi, gioca un ruolo decisivo nella determinazione delle loro funzioni semantiche
Making the Connection: E-Government and Public Administration Education
No full textIf e-govemment will transform how public sector organizations operate, what is the connection between e-government and public administration education? The purpose of this paper is to make that connection. The paper addresses the following questions: First, what are the emerging issues in public management in the era of e-government? Second, what does the literature say about the corresponding transformation required in public administration? Finally, what changes in public administration program curricula are necessary to respond to this transformation? This paper explores the emerging issues in public management in the era of e-government and proposes two levels of modification to the current MPA curriculum in order to connect e-government to public administration education: first, the adaptation of existing curricula to respond to emerging issues, and second, additional e- government content for leaders dealing with the transformations occurring in the way government conducts business and the perception of e-government-associated information technology by public leaders. This paper encourages students, academics, and practitioners of public administration to discuss how to make a connection between these emerging issues and public administration education.1
See You Soon: An E-Memoir
No full textThis thesis is a creative nonfiction piece, which uses e-mails between two people to create its text. It is in an epistolary style, which historically is a style in which letters, diary entries or newspaper clippings are used to construct a story. Epistolary (which comes from the word epistle, or letter) novels often are used to show a developing relationship between people, which is precisely what the proceeding piece, See You Soon, aims to do.
The following document is constructed out of thousands of e-mails between the author and her now-husband. The e-mails were weeded through and woven together to create a singular piece, which ebbs and flows throughout almost two years of the characters\u27 lives.
At the onset of the recorded online communication, the couple is in a long-distance relationship, after only dating for a few weeks. The piece ends with the letters written by each character to the other on their wedding day. The e-mails that bridge that great divide also bridge being on different continents, different careers, living situations, and emotional states of being.
The author of the piece worked for months gleaning the most pertinent and poignant information from thousands of e-mails from four different e-mail servers, in an attempt to create an epistolary story that not only dealt with romance, but the growing pains that come with graduating college and entering the real world.
As a result, this novella is a close look into the lives and minds of a young man and a young woman attempting to find their way in life and with one another. The following pages offer those candid inner-workings of a growing relationship through the medium of e-mail, which is unique in its immediate and constant communication between the two writers. This is a love story between two writers, and a glance between the lines of a young relationship
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