Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 65 for “"RIS"”.
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PRO-RIS and customer engagement in complex services
… and resource integration. This research comprises three papers that investigate the customers’ and employees’ activities and interactions in an extended and complex service setting. In line with the overall research objectives, we address two distinct yet related themes - the first paper …
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Advancing RIS Optimization: From Ideal to Realistic Models
… ability of reconfigurable intelligent surfaces (RISs) to control the propagation environment in their vicinity, they have emerged as an appealing solution to enhance the performance of next-generation wireless networks. These surfaces consist of low-cost, energy-efficient reflecting elements that …
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Ris samfélagsmiðlanna. Notkun stjórnmálaflokka á samfélagsmiðlum fyrir þingkosningar 2013
Viðfangsefni þessa lokaverkefnis er að kanna í hvaða mæli stjórnmálaflokkar á Íslandi nota samfélagsmiðla. Hvaða leiðir stjórnmálamenn hafa kosið til að koma boðskap sínum á framfæri nú eftir að tími flokksblaða hefur liðið undir lok og internetið og samfélagsmiðlar eru allsráðandi. Hvaða …
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Sum-rate maximization in multi-RIS multi-carrier systems through active power allocation and passive beamforming
… the sum-rate maximization problem in a multi-RIS environment within an orthogonal frequency division multiplexing (OFDM) framework. Reconfigurable intelligent surfaces (RIS) offer low-cost and energy-efficient solutions for enhancing wireless communication. In this work, we jointly optimize …
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Advancements in Radar Sensing and Communications through Reconfigurable Intelligent Surfaces
Reconfigurable Intelligent Surfaces (RIS) represents a promising technology for reshaping wireless channels, offering a new degree of freedom in the design of next-generation wireless networks. Specifically, RIS has shown significant potential in enabling smart, programmable environments by …
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Impact of grain boundary character on the radiation-induced segregation morphology in proton-irradiated 316L austenitic stainless steel
Radiation-induced segregation (RIS) is a non-equilibrium kinetic phenomenon that occurs as a result of radiation damage and leads to the local depletion or enrichment of atoms at point-defect sinks such as grain boundaries and dislocation loops in metallic alloys. This segregation can be so strong …
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Efficient design of reconfigurable intelligent surface assisted multi-group multicast beamforming
… by a reconfigurable intelligent surface (RIS). We propose low-complexity scalable algorithms for the joint design of the base station (BS) multicast beamformer and the RIS passive beamformer to minimize the transmit power subject to the quality-of-service (QoS) constraints and maximize the …
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Fashion Innovation System Policy: Probing regional innovation systems to optimise digital manufacturing for fashion designers
… a novel approach to Regional Innovation Systems (RIS) has emerged, acknowledging the diverse traits of regions and sectors, thereby giving rise to RIS pathway approaches. In mature industries, particularly the fashion sector, innovation resistance poses a significant challenge among industrial …
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Magnetoencephalographic Study on the Representation of Huygens Noise in the Auditory Cortex of Humans
… was studied by using regular interval sounds (RIS-Huygens noise). The distinct pitch of RIS is introduced by delaying random noise and adding it back to the same noise. The relation between the psychoacoustically measured pitch of RIS and the auditory evoked neuromagnetic responses was …
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Contemporary Approaches to Radar Detection: Robust Statistics, Reinforcement Learning, and Reconfigurable Intelligent Surfaces
… (RL), and reconfigurable intelligent surfaces (RIS) to improve upon existing radar detection techniques. This work focuses only on monostatic co-located MIMO radar and radar networks. First, we look at the role of robust detection statistics and RL in radar detection. Because RL is a type of …
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Effects of Implanted Solutes and Heavy -Ion Cascades on the Kinetics of Radiation -Induced Segregation in Binary Alloys
… which drive radiation-induced segregation (RIS) in Ni-9at.%Al and Cu-1at.%Au alloys. To study the effect of solute implantation on RIS, the segregation rate of Al atoms in Ni-9at.%Al following the implantation of Ne, Sc, or Zr was quantified using in-situ measurements of the growth rate of …
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Development of implantable devices for schizophrenia treatment
… is commonly prescribed to treat schizophrenia is risperidone (RIS). This drug is administered through the oral route (e.g. tablets). Accordingly, the drug is exposed to first-pass metabolism and enzymatic degradation in the gastrointestinal tract. Besides, it also can be administered as …
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Regulatory Landscapes Associated With Changes In Nuclear Architecture
… the same lineage. In this study, I characterised chromatin architecture coupled with gene expression changes in RAS-induced senescent (RIS) cells. RIS is a tumour suppressive phenotype associated with cell cycle arrest and inflammation, associated with substantial alterations in both …
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Establishing locally derived reference intervals for full blood count parameters and white cell differential counts in the Western Cape region of South Africa
… establish locally derived reference intervals (RIs) with appropriate representation of the various ethnic groups. Accurate RIs are essential to distinguish between health and disease. Objective: To establish locally derived RIs for full blood count (FBC) and white blood cell (WBC) differential …
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Reference intervals for selected haematological and clinical biochemistry measurands in Temminck’s ground pangolin (Smutsia temminckii)
… this study was to establish reference intervals (RIs) for haematology and plasma clinical chemistry in the Temminck’s ground pangolin. Blood samples were collected from 27 healthy free-living or rehabilitated pangolins and reference intervals were generated according to international guidelines. …
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Design of reconfigurable intelligent surface for 5G wireless communication system
… Reconfigurable Intelligent Surfaces (RISs) have emerged as a promising technology to address the challenges of wireless communication, offering unprecedented control over electromagnetic wave propagation in various environments. In addition, RISs can be fabricated with low cost and can …
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E-mams and Hybrid Muslims in 'Convergent Spaces': Intersections of Online and Offline Religions for Canadian and American Muslims at Reviving the Islamic Spirit Convention
… at the Reviving the Islamic Spirit (RIS) convention - an annual conference in Toronto - illustrates their desire to meet in person even though they also engage in religious learning and activities online. Through qualitative interviews, I discover that these young Muslims find …
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Avaliação por microtomografia computadorizada das alterações da microarquitetura óssea ocorridas em mandíbula e colo femoral em ratas ovariectomizadas em uso de Risedronato oral
… (CON), Ovariectomizada (OVX), Ovariectomizada+ Risedronato (ORI), Risedronato (RIS). Foram realizadas microtomografias computadorizadas (micro CT) em tempos distintos: a primeira (T1) animais com 20 semanas de vida e a segunda (T2) animais com 24 semanas de vida, e 4 semanas de uso de …
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Reconfigurability in Wireless Networks: Applications of Machine Learning for User Localization and Intelligent Environment
… scenario, a reconfigurable intelligent surface (RIS) containing 4096 tunable cells reflects signals sending from a transmitter to users in an office for better performance. We use the training data of one user's received signals under different configurations to learn the impact behavior of the …
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A numerical study of the suitability of rigid inclusion ground reinforcement beneath caisson quay walls
… heights at any construction rate and, in theory, RIs can be applied to all soil types. Additionally the locations of many ports coincide with rivers, deltas and estuaries which are associated with poor soil conditions often requiring ground improvement. Their suitability is of practical …
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