6,380 research outputs found
A duas vozes: as poéticas do/no feminino de Ana Paula Tavares e Shu Ting
No full textPropõe-se, nesta dissertação, uma leitura comparativa de textos selecionados de duas poetas contemporâneas que, tendo desenvolvido a sua atividade literária em contextos geográficos e culturais manifestamente diversos, recorreram ao trabalho lírico como meio de indagação da natureza e da circunstância da mulher. Com efeito, tanto a autora angolana Paula Tavares, como a poeta chinesa Shu Ting tematizam assiduamente a condição feminina de que são simultaneamente representantes e testemunhas, interrogando a natureza e o destino da mulher angolana e chinesa ao longo da história, figurando-a em situações que oscilam entre a subalternidade e a reivindicação de uma voz própria. Salientam-se tanto as semelhanças temáticas e imagísticas que permitem aproximar os conjuntos poéticos selecionados, como as inúmeras diferenças que os singularizam.This dissertation proposes a comparative reading of selected texts by two contemporary female poets who, having developed their literary activity in manifestly different geographical and cultural contexts, resorted to poetry as a means of inquiry into the nature and circumstances of women. In fact, both the Angolan author Paula Tavares and the Chinese poet Shu Ting have often thematized the female condition which they simultaneously represent and witness, questioning the nature and the destiny of Angolan and Chinese women throughout history, portraying them in situations that oscillate between subalternity and the claiming of a voice of their own. We highlight both the thematic and imagistic similarities that bring the selected poems together, as abstract well as the numerous differences that make them unique.Mestrado em Português Língua Estrangeira/Língua Segund
sj-pdf-1-imr-10.1177_03000605231187815 - Supplemental material for Case report on gynecomastia with ipsilateral recurrence of granulomatous lobular mastitis
No full textSupplemental material, sj-pdf-1-imr-10.1177_03000605231187815 for Case report on gynecomastia with ipsilateral recurrence of granulomatous lobular mastitis by Yao Ke Han, Wang Ting, Pan Ting, Xiao Bing Yv, Shu Ran Xi and Lyu Gang in Journal of International Medical Research</p
An article on how the author, an amateur runner, ran Cape Elizabeth\u27s Beach to B
No full textAn article on how the author, an amateur runner, ran Cape Elizabeth\u27s Beach to Beacon 10K race last August, with comments on the scenery, the encouraging crowds, and the other runners
Assessment of 5G RAN Features for Integrated Services Provisioning in Smart Cities
No full textIn a 5G Radio Access Network (RAN), different features are offered as solutions to serve traffic with diverse characteristics and requirements, including flexible numerology, (non-)pre-emptive mini-slot based scheduling and network slicing. In this paper, we present an extensive simulation-based assessment of the relative merit of these distinct 5G features in the context of a smart city environment. We further derive the optimal feature combination and associated configuration which best handles the services related to the smart city environment given their performance requirements. The obtained insights confirm the commonly argued potential of slicing, emphasizing that the optimal configuration of the slice-specific numerology depends not only on the nature of the handled services but also on the selected RAN features. Among these features, non-preemptive mini-slot based scheduling and idle resource sharing reveal significant performance potential.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Network Architectures and Service
Assessment of Key 5G RAN Features for Integrated Services Provisioning in a Smart City Environment
No full textThe Fifth Generation (5G) network is expected to support three main service categories namely enhanced Mobile BroadBand (eMBB), Ultra-Reliable and Low-Latency Communications (URLLC) and massive Machine Type Communications (mMTC), where each service group has a different Quality of Service (QoS) requirements i.e. the eMBB service group has a high throughput requirement, the URLLC service group require very low-latency and highly reliable transmissions and the mMTC service group do not have a strict performance requirement but have massive connection of devices in the network. 5G enables many vertical domains with these three service categories, such as, smart cities. In a smart city environment, there are applications from all three service categories such as massive connectivity of the sensors for waste managements or monitoring environmental conditions, video surveillance along the city streets and many more. This study addresses the problem of managing applications from the three service categories on the same physical network infrastructure at the Radio Access Network (RAN). Two different scenarios, one with and one without an emergency incident, are considered to find the impact of the incident in the network.In 5G networks, many new features are introduced such as, flexible numerology, mini-slot based scheduling, BandWidth Parts (BWPs) and RAN slicing. The key objective of this study is to assess the 5G RAN features in terms of achieving the performance requirements of the considered applications, simultaneously. To do so, different RAN configurations are modelled where, a RAN configuration consists of one or multiple RAN features. The evaluation is done by simulating the different possible RAN configurations. The simulations are performed using an existing 5G system-level simulator which is substantially upgraded with the 5G RAN features and is modified to the considered smart city urban macro-cellular environment and with the considered traffic models for each considered application. To evaluate the performance of each considered application, different performance metrics are defined based on the application requirements. The benefits and/or losses of different RAN features are found and then different RAN configurations are considered with the combinations of RAN features based on the evaluation of each RAN feature. For all different RAN configurations with combination of features, the performance metrics are evaluated and compared with each other to determine the best-performing configurations for the smart city environment, for the scenarios with and without an incident.Electrical Engineering | Wireless Communication and Sensin
Ran and Calcineurin Can Participate Collaboratively in the Regulation of Spermatogenesis in Scallop
No full textCalcineurin is a calcium/calmodulin-dependent protein phosphatase that plays important roles in the transduction of calcium signals in a variety of tissues. In addition, calcineurin has been implicated in the process of spermatogenesis. A novel calcineurin-binding protein, CaNBP75, has been identified in scallop testis. The C-terminal region of CaNBP75 is homologous to the C-terminal region of RanBP3, a Ran binding domain-containing protein. A small G-protein Ran has been involved in spermiogenesis by virtue of the fact that its localization in spermatids changes during spermiogenesis. The current study was performed to investigate the functions of Ran and CaNBP75 in the regulation of calcineurin in testis to further understand the basic functions of calcineurin during spermatogenesis. First, cloning and sequencing of a scallop Ran cDNA isolated from testis revealed that scallop Ran is well-conserved at the amino acid level. Secondly, direct binding of Ran to CaNBP75 was demonstrated in an in vitro pull-down assay. Thirdly, analysis of the tissue distribution of Ran, CaNBP75 and calcineurin showed that these proteins are abundantly expressed in testis. Fourthly, comparison of the expression profiles of Ran and CaNBP75 with that of calcineurin in scallop testis during the maturation cycle revealed that Ran and CaNBP75 mRNA levels increase during meiosis and spermiogenesis, similar to calcineurin. Finally, co-immunoprecipitation analysis suggests that Ran, CaNBP75 and calcineurin interact in scallop testis during maturation. These results suggest that Ran, CaNBP75, and calcineurin may act in a coordinated manner to regulate spermatogenesis
Edge computing on mobile devices in next generation RAN architecture
No full textCloud Radio Access Networks (C-RAN) is a new paradigm within mobile telecommunication systems. C-RAN represents a shift from traditional C-RAN represents a shift from traditional C-RAN represents a shift from traditional Stand alone radio base stations (BS) which are costly to setup and suffer from under utilization of fluctuating users. C-RAN represents a shift to pooling of base station resources in a Baseband Units (BBU) as well distributed remote radio heads (RRH). With the addition of centralized resources, mobile networks are moving towards real-time virtualised platforms and open interoperable interfaces, replacing the monolithic vendor provider model with a flexible resource market pool.
Next Generation RAN (NG-RAN) represents a next stage in radio networks, leveraging Software Defined Radios and Software Defined Networks to provide increased flexibility in the provisioning of radio and computing resources to mobile networks. Unlike pure cloud providers, NG-RAN provides true edge computing capabilities that allow for new class of low-latency and approximate computation applications.
The works presented here examines an architecture for improved urban localization using through a Mobile Augmented Reality application. Using a localized edge nodes, we are show improved latency improvements over traditional cloud based times.
Additionally, a detailed dive on NG-RAN Virtualisation techniques is examined through use of containers. Finally, a examination into the privacy issues of uploading sensitive data and a system for mobile continuous authentication is examined.M.S.Includes bibliographical reference
A Strategy-proof Resource Allocation Mechanism for RAN Sharing among Operators
No full text電信營運商可以透過簽訂無線接取網路共享合約來減少資本支 出 (Capital Expenditure) 和營運成本 (Operational Expenditure) 上的開銷。 雖然共享的方針可能依據實際上分享資源的程度而有所不同,但電信 營運商們都將處在一個彼此互相合作卻又同時競爭的狀態。因此,共 享資源的分配結果需要能確保所有參與其中的電信營運商都能有所獲 益。此外,訂閱電信服務的訂閱者們也可能對於不同來源的無線電資 源有所偏好,然而這個偏好卻是不被他人所知的。當我們假設所有的 參與者 (包含所有的電信營運商以及服務訂閱者) 都會優先考慮自身的 利益,而且僅追求自身利益;那一旦服務訂閱者們被要求要揭露自己 的偏好時,他們將會以最大化自身利益為前提來回答問題,而且即使 角色換成了電信營運商們也是一樣的。所以,在這篇論文中,我們提 出了一個「策略防範的資源分配機制」來解決參與者用策略性的回報 資訊以增加自身利益的問題。透過這個分配機制,我們能確保所有的 資訊將會被正確、真實的收集起來,同時所有的參與者們 (包含電信營 運商們以及服務訂閱者們) 都會因有利可圖而積極主動的加入這個資源 分配機制。Operators could alleviate their Capital Expenditure (CAPEX) and Opera- tional Expenditure (OPEX) by signing up RAN sharing contracts with other operators. Although the sharing scheme could be various according to the de- gree of the sharing, operators would cooperate and compete with each other at the same time. Therefore, the resource allocation results should always be guaranteed to be profitable for every operator. Besides that, the subscribers would also have their preference to the resources from different radio access network (RAN). However, the preference is kept by subscribers themselves. If all entities are assumed to be selfish, and tend to pursue the benefit for themselves, then once the subscribers are asked to reveal their preference, they sought to reply with the answer, which maximizes their utilities, and so do op- erators. Thus, a strategy-proof resource allocation mechanism is proposed in this thesis to tackle these issues. With this mechanism, the information could be truly gathered, and both operators and subscribers would be proactive to join this mechanism
Energy-Aware Scheduling of Virtualized Base Stations in O-RAN with Online Learning
No full textThe design of Open Radio Access Network (O-RAN) compliant systems for configuring the virtualized Base Stations (vBSs) is of paramount importance for network operators. This task is challenging since optimizing the vBS scheduling procedure requires knowledge of parameters, which are erratic and demanding to obtain in advance. In this paper, we propose an online learning algorithm for balancing the performance and energy consumption of a vBS. This algorithm provides performance guarantees under unforeseeable conditions, such as non-stationary traffic and network state, and is oblivious to the vBS operation profile. We study the problem in its most general form and we prove that the proposed technique achieves sub-linear regret (i.e., zero average optimality gap) even in a fast-changing environment. By using real-world data and various trace-driven evaluations, our findings indicate savings of up to 74.3% in the power consumption of a vBS in comparison with state-of-the-art benchmarks.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Embedded System
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