A5070833310- Online and Blended Learning
- Error Correcting Code Techniques
- Advanced Wireless Communication Techniques
- Innovative Teaching and Learning Methods
- Cooperative Communication and Network Coding
- Impact of Technology on Adolescents
- E-Learning and Knowledge Management
- Online Learning and Analytics
- Innovative Education and Learning Practices
- Open Education and E-Learning
- Social Media and Politics
- Digital Education and Society
- Mobile Learning in Education
- Literacy, Media, and Education
- Higher Education Practises and Engagement
- Global Educational Policies and Reforms
- Information Systems Theories and Implementation
- Particle physics theoretical and experimental studies
- Scientific Computing and Data Management
- Gender and Technology in Education
- Library Science and Administration
- Embedded Systems Design Techniques
- Child Development and Digital Technology
- Wikis in Education and Collaboration
- ICT in Developing Communities
Brandon University
2024
Transport Canada
2023
Center for Health and Gender Equity
2023
Novalia (United Kingdom)
2018-2021
Liverpool John Moores University
2012-2021
University of Cambridge
2017-2020
De Montfort University
2019
Stellenbosch University
2018
Cavendish Hospital
2017
Services Australia
2017
This letter explains the effect of graph connectivity on error-floor performance low-density parity-check (LDPC) codes under message-passing decoding. A new metric, called extrinsic message degree (EMD), measures cycle in bipartite graphs LDPC codes. Using an easily computed estimate EMD, we propose a Viterbi-like algorithm that selectively avoids small clusters are isolated from rest graph. is different conventional girth conditioning by emphasizing as well length cycles. The yields with...
This paper discusses construction of protograph-based low-density parity-check (LDPC) codes. Emphasis is placed on protograph ensembles whose typical minimum distance grows linearly with block size. Asymptotic performance analysis for both weight enumeration and iterative decoding threshold determination provided applied to a series code constructions. Construction techniques that yield low thresholds linear growth are introduced by way example throughout. The also examines implementation...
Since the turn of this century, much world has undergone tectonic socio-technological change. Computers have left isolated basements research institutes and entered people’s homes. Network connectivity advanced from slow unreliable modems to high-speed broadband. Devices evolved: stationary desktop computers ever-present, always-connected smartphones. These developments been accompanied by new digital practices, changing expectations, not least in education, where enthusiasm for technologies...
This work explains the relationship between cycles, stopping sets, and dependent columns of parity check matrix low-density parity-check (LDPC) codes. Furthermore, it discusses how these structures limit LDPC code performance under belief propagation decoding. A new metric called extrinsic message degree (EMD) measures cycle connectivity in bipartite graph. Using an easily computed estimate EMD, we propose a Viterbi-like algorithm that selectively avoids cycles increases set size. yields...
Meeting a greenhouse gas (GHG) reduction target of 80% below 1990 levels in the year 2050 requires detailed long-term planning due to complexity, inertia, and path dependency energy system. A investigation supply demand alternatives is conducted assess requirements for future California systems that can meet GHG target. Two components are developed here build novel analytic capacity extend previous studies: (1) bottom-up projections across building, industry transportation sectors; (2)...
The development of error-correcting codes has been closely coupled with deep-space exploration since the early days both. Since discovery turbo in 1993, research community invested a great deal work on modern iteratively decoded codes, and naturally NASA's Jet Propulsion Laboratory (JPL) very much involved. This paper describes research, design, implementation, standardization that taken place at JPL for both low-density parity-check (LDPC) codes. Turbo code proceeded from theoretical...
Abstract Based on research investigating English first‐year university students, this paper examined the case made for a new generation of young learners often described as Net Generation or Digital Natives in terms agency and choice. Generational arguments set out that links people's attitudes orientations to their lifelong exposure networked digital technologies. This drew interview data from mixed methods suggest picture is more complex than equation technologies generational change...
Abstract In this paper, we explore the idea of weak ties in networked learning. We go back to original conception strength and relate Bakhtin a dialogic understanding These theoretical ideas are applied examination two settings which educational leaders exchange have potential create knowledge. examine these networks from point view overall pattern interaction an interest kinds dialogues engaged by participants network. identify area for further research comparison dimensions links that...
This book provides an essential resource for researchers and practitioners in the area of networked learning. Networked learning is which information communication technology used to promote connections: between one learner other learners; learners tutors a community its resources. Informed by theory this insights into growing educational practice that covered term The collection written way accessible useful both practitioners. Written experienced European chapters represent major...
Systematic under-prediction of clearance is frequently associated with in vitro kinetic data when extrapolated using physiological scaling factors, appropriate binding parameters and the well-stirred model. The present study describes a method removing this systematic bias through application empirical correction factors derived from regression analyses applied to vivo for defined set reference compounds.Linear lines were established intrinsic (CLint), scaled isolated hepatocyte incubations....
Here, we formulate low surface tension (∼30 mN/m) and boiling point (∼79 °C) inks of graphene, single-wall carbon nanotubes conductive polymer poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) demonstrate their viability for spray-coating morphologically uniform (Sq ≈ 48 ± 3 nm), transparent conducting films (TCFs) at room temperature (∼20 °C), which conform to three dimensional curved surfaces. Large area (∼750 cm2) hybrid PEDOT:PSS/graphene achieved an optical...
We propose several LDPC code constructions that simultaneously achieve good threshold and error floor performance. Minimum distance is shown to grow linearly with block size (similar regular codes of variable degree at least 3) by considering ensemble average weight enumerators. Our are based on projected graph, or protograph, structures support high-speed decoder implementations. As irregular ensembles, our sensitive the proportion degree-2 nodes. A too few such nodes tends have an...
A construction method for protograph-based LDPC codes that simultaneously achieve low iterative decoding threshold and linear minimum distance is proposed. We start with a high-rate protograph code variable node degrees of at least 3. Lower rate are obtained by splitting check nodes connecting them degree-2 nodes. This guarantees the property lower-rate codes. Excluding checks connected to degree-1 nodes, we show number should be most one less than have distance. Iterative thresholds using...
Printing has drawn a lot of attention as means low per-unit cost and high throughput patterning graphene inks for scaled-up thin-form factor device manufacturing. However, traditional printing processes require flat surface are incapable achieving on to 3D objects. Here, we present conformal method achieve functional graphene-based patterns arbitrarily-shaped surfaces. Using experimental design, formulate water-insoluble ink with optimum conductivity. We then print single multi-layered...
A coreflood study was undertaken to measure dynamic displacement characteristics of CO2, CH4, and brine as part a feasibility for proposed carbon capture, utilization, storage (CCUS) development. The planned project involves the separation CO2 from reservoir gas its reinjection into reservoir. This both sequestrate recover trapped hydrocarbon underlying paleo-residual (PRG) zone. Key parameters measured in order model enhanced recovery (EGR) process included drainage imbibition relative...
This paper provides a construction method for low-rate low density parity check codes. Inspired by recently proposed accumulate-repeat-accumulate (ARA) codes, and hybrid concatenated in this we extend the to rates. Such codes can be viewed as concatenations of simple modules such accumulators, repetition differentiators, punctured single These constitute subclass LDPC with very fast encoder structure. They also have projected graph or protograph representation that allows high-speed decoder...
In this paper, we apply two improved min-sum algorithms, the normalized and offset to decoding of irregular LDPC codes. We show that behavior algorithms in codes is different from regular codes, due existence bit nodes degree two. analyze give explanations difference, propose approaches improve performance algorithms.