cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A CRITICAL STUDY ON AN UNBALANCED TRANSPORTATION PROBLEM
Creators: name: ABRAHAM ASSEFA
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: Abstract
An  unbalanced  version  of  a  Transportation  Problem  (TP)  is  one  which  occurs  due  to  either
supply or demand imbalance. Its fundamental objective is to minimize the cost of shipment while
distributing  goods  or  products  from  several  origins  (factories)  to  various  destinations
(warehouses).  However,  this  objective  is  to  be  achieved  by  transforming  the  problem  in  to  a
balanced type. For supply imbalance problem i.e. the problem with total supply greater than total
demand, we usually add  a fictitious sink  in order to receive excess of supply.  In case when total
demand  is  greater  than  total  supply,  i.e.  for  demand  imbalance  problem,  a  fictitious  source  is
usually introduced so as to satisfy the unfilled demand. Moreover, the cost of transportation to or
from  fictitious  sink/fictitious  source  is  assumed  to  be  zero  as  units  are  not  really  transported.
Unlike this approach, some other techniques have also come in to being to balance the problem
without the need to have fictitious sinks or sources.
Once it is balanced, the problem can be solved by simplex method-a well-  known but tedious
technique  for  dealing  with  any  linear  programming.  A  special  procedure  for  solving  a
transportation  problem is the so called “transportation method” which requires much less effort
than the simplex algorithm.
In  this  thesis  work,  solution  approaches  of  an  unbalanced  transportation  problem  have  been
reviewed  and  a  New  Alternate  Method  (NAM)  for  unbalanced  transportation  problems  is
proposed. Our approach has shown an efficient performance over the existing methods.
Accuracy analysis of the on-board data reduction pipeline for the Polarimetric and Helioseismic Imager on the Solar Orbiter mission
Creators: name: Albert, Kinga
name: Hirzberger, Johann
name: Durán, J. Sebastián Castellanos
name: Suárez, David Orozco
name: Woch, Joachim
name: Michalik, Harald
name: Solanki, Sami K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Scientific data reduction on-board deep space missions is a powerful approach to maximise science return, in the absence of wide telemetry bandwidths. The Polarimetric and Helioseismic Imager (PHI) on-board the Solar Orbiter (SO) is the first solar spectropolarimeter that opted for this solution, and provides the scientific community with science-ready data directly from orbit. This is the first instance of full solar spectropolarimetric data reduction on a spacecraft. In this paper, we analyse the accuracy achieved by the on-board data reduction, which is determined by the trade-offs taken to reduce computational demands and to ensure the autonomous operation of the instrument during the data reduction process. We look at the magnitude and nature of errors introduced in the different pipeline steps of the processing. We use an MHD sunspot simulation to isolate the data processing from other sources of inaccuracy. We process the data set with calibration data obtained from SO/PHI in orbit, and compare results calculated on a representative SO/PHI model on ground with a reference implementation of the same pipeline, without the on-board processing trade-offs. Our investigation shows that the accuracy in the Stokes vectors, achieved by the data processing, is at least two orders of magnitude better than what the instrument was designed to achieve. We also found that the errors in the physical parameters are within the accuracy of typical RTE inversions with Milne-Eddington approximation of the atmosphere. This paper demonstrates that the on-board data reduction of the data from SO/PHI does not compromise the accuracy of the processing. This places on-board data processing as a viable alternative for future scientific instruments that would need more telemetry than many missions are able to provide, in particular those in deep space.
HIGHER DIMENSIONAL BIANCHI TYPE – VI0 COSMOLOGICAL MODEL  WITH WET DARK FLUID DISTRIBUTION
Creators: name: DILNESAW BEKELE GEMEDA
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: Higher Dimensional Bianchi type-VI0
Cosmological Model with wet dark fluid distribution is
investigated.  Exact  solutions  of  field  equations  are  derived  when  the  metric  potentials  are
functions of cosmic time only.  Some physical and geometrical properties of the solutions are
also discussed.
Column collapse of granular rods
Creators: name: Trepanier, M.
name: Franklin, Scott V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We find the collapse of columns of granular rods to show range of behaviors that depends on particle aspect ratio (length $L$ to diameter $d$) and initial pile geometry (height/radius). For all aspect ratios $L/d$ below 24 there exists a critical height at $L/4$ below which the pile acts as a solid, maintaining its initial shape, and a second critical height at $3L/4$ above which the pile always collapses like an ordinary granular material. Separating the critical heights is a transition region in which the probability of collapse increases linearly from 0 to 1. This behavior is independent of particle length, width, or aspect ratio. When the pile does collapse, the runoff radius $r_f$ scales as a power-law with dimensionless height $\tilde H$, agreeing with previous experiments on ordinary sand. For low piles the scaling is linear, with $r_f\sim \tilde H^{1.2\pm 0.1}$. Above a critical pile aspect ratio (pile height/radius) this switches to a square-root scaling, with $H^{0.6\pm0.1}$.
description: Submitted to Physical Review E, 6/2010
Information filtering via preferential diffusion
Creators: name: Lu, Linyuan
name: Liu, Weiping
Publisher: name: arXiv
Year: 2011
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Information Retrieval (cs.IR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Recommender systems have shown great potential to address information overload problem, namely to help users in finding interesting and relevant objects within a huge information space. Some physical dynamics, including heat conduction process and mass or energy diffusion on networks, have recently found applications in personalized recommendation. Most of the previous studies focus overwhelmingly on recommendation accuracy as the only important factor, while overlook the significance of diversity and novelty which indeed provide the vitality of the system. In this paper, we propose a recommendation algorithm based on the preferential diffusion process on user-object bipartite network. Numerical analyses on two benchmark datasets, MovieLens and Netflix, indicate that our method outperforms the state-of-the-art methods. Specifically, it can not only provide more accurate recommendations, but also generate more diverse and novel recommendations by accurately recommending unpopular objects.
description: 12 pages, 10 figures, 2 tables
Massive Black Hole Binary Systems in Hierarchical Scenario of Structure Formation
Creators: name: Pereira, Eduardo S.
name: Miranda, Oswaldo D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The hierarchical scenario of structure formation describes how objects like galaxies and galaxy clusters are formed by mergers of small objects. In this scenario, mergers of galaxies can lead to the formation of massive black hole (MBH) binary systems. On the other hand, the merger of two MBH could produce a gravitational wave signal detectable, in principle, by the Laser Interferometer Space Antenna (LISA). In the present work, we use the Press-Schechter formalism, and its extension, to describe the merger rate of haloes which contain massive black holes. Here, we do not study the gravitational wave emission of these systems. However, we present an initial study to determine the number of systems formed via mergers that could permit, in a future extension of this work, the calculation of the signature in gravitational waves of these systems.
description: to match the published version in International Journal of Modern Physics D
Optimal Resource Management for Hierarchical Federated Learning over HetNets with Wireless Energy Transfer
Creators: name: Hamdi, Rami
name: Said, Ahmed Ben
name: Baccour, Emna
name: Erbad, Aiman
name: Mohamed, Amr
name: Hamdi, Mounir
name: Guizani, Mohsen
Publisher: name: arXiv
Year: 2023
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Remote monitoring systems analyze the environment dynamics in different smart industrial applications, such as occupational health and safety, and environmental monitoring. Specifically, in industrial Internet of Things (IoT) systems, the huge number of devices and the expected performance put pressure on resources, such as computational, network, and device energy. Distributed training of Machine and Deep Learning (ML/DL) models for intelligent industrial IoT applications is very challenging for resource limited devices over heterogeneous wireless networks (HetNets). Hierarchical Federated Learning (HFL) performs training at multiple layers offloading the tasks to nearby Multi-Access Edge Computing (MEC) units. In this paper, we propose a novel energy-efficient HFL framework enabled by Wireless Energy Transfer (WET) and designed for heterogeneous networks with massive Multiple-Input Multiple-Output (MIMO) wireless backhaul. Our energy-efficiency approach is formulated as a Mixed-Integer Non-Linear Programming (MINLP) problem, where we optimize the HFL device association and manage the wireless transmitted energy. However due to its high complexity, we design a Heuristic Resource Management Algorithm, namely H2RMA, that respects energy, channel quality, and accuracy constraints, while presenting a low computational complexity. We also improve the energy consumption of the network using an efficient device scheduling scheme. Finally, we investigate device mobility and its impact on the HFL performance. Our extensive experiments confirm the high performance of the proposed resource management approach in HFL over HetNets, in terms of training loss and grid energy costs.
title: ÐÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ PR-ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¹ Ð² Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶Ð½ÐµÐ½Ð¸Ð¸ Ð¾Ð±ÑÐµÐºÑÐ¾Ð² ÑÑÑÐ¸ÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÐµÑÑ (Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÐÐÐ "Ð¤ÑÐµÐ³Ð°Ñ")
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: The use of PR-technologies in the promotion of tourism (for example, LLC "Fregat")
Creators: name: ÐÐ°ÑÐ½Ð°ÐºÐ¾Ð²Ð°, ÐÐ»ÑÐ³Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: Ð±ÑÐµÐ½Ð´
ÑÑÑÐ¸Ð·Ð¼
Ð³Ð¾ÑÑÐ¸Ð½Ð¸ÑÐ½ÑÐ¹ Ð±Ð¸Ð·Ð½ÐµÑ
brand
tourism
hotel business

description: Ð¦ÐµÐ»ÑÑ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ PR-ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¹ Ñ ÑÐµÐ»ÑÑ Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ñ Ð¾Ð±ÑÐµÐºÑÐ¾Ð² ÑÑÑÐ¸ÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÐµÑÑ. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¸ ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ PR-Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ ÐÐÐ Â«ÐÐ¾Ð¼ÐµÑ ÐÑÐºÑÂ».
Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ Ð±ÑÐ» Ð²ÑÑÐ²Ð»ÐµÐ½ ÑÑÐ´ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼ Ð² Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¸ PR-Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸, Ð¸ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½ ÑÑÐ´ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ð¹ Ð¿Ð¾ Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ñ PR-ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¹, Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð½ÑÑ Ð½Ð° Ð¿ÑÐ¾Ð´Ð²Ð¸Ð¶ÐµÐ½Ð¸Ðµ Ð³Ð¾ÑÑÐ¸Ð½Ð¸ÑÐ½ÑÑ ÑÑÐ»ÑÐ³
ÐÐÐ Â«ÐÐ¾Ð¼ÐµÑ ÐÑÐºÑÂ».
description: The aim of the work is to study the features of using PR technologies in order to promote companies of the tourism sector. In the Thesis were analyzed and improved PR activities of LLC Â«Nomer LuxÂ». As a result of the analysis of the companyâs activities, a number of problems were identified in the organization of PR activities, and a number of measures were introduced for the implementation of PR technologies aimed at promoting the hotel services of LLC Â«SuiteÂ».
Monotonicity conjecture for multi-party entanglement I
Creators: name: Gadde, Abhijit
name: Jain, Shraiyance
name: Krishna, Vineeth
name: Kulkarni, Harshal
name: Sharma, Trakshu
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we conjecture a monotonicity property that we call monotonicity under coarse-graining for a class of multi-partite entanglement measures. We check these properties by computing the measures for various types of states using different methods.
description: 40 Pages, 10 Figures
Recent results from heavy flavour physics on the lattice
Creators: name: Della Morte, Michele
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We discuss some recent lattice results on a few selected hadronic quantities relevant for heavy flavour phenomenology and present some recent theoretical developments. We put the emphasis on the challenges, which have to be faced, on the way to precise heavy flavour physics from the lattice. We also discuss the importance in the search for New Physics of possible future lattice studies of the form factors entering B --> K and B --> K* semileptonic decays.
description: 4 pages, 1 figure. Invited talk at ICHEP 2010, July 22 - 28, 2010, Paris
Approaching the Intrinsic Bandgap in Suspended High-Mobility Graphene Nanoribbons
Creators: name: Lin, Ming-Wei
name: Ling, Cheng
name: Agapito, Luis A.
name: Kioussis, Nicholas
name: Zhang, Yiyang
name: Cheng, Mark Ming-Cheng
name: Wang, Wei L.
name: Kaxiras, Efthimios
name: Zhou, Zhixian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report electrical transport measurements on a suspended ultra-low-disorder graphene nanoribbon(GNR) with nearly atomically smooth edges that reveal a high mobility exceeding 3000 cm2 V-1 s-1 and an intrinsic band gap. The experimentally derived bandgap is in quantitative agreement with the results of our electronic-structure calculations on chiral GNRs with comparable width taking into account the electron-electron interactions, indicating that the origin of the bandgap in non-armchair GNRs is partially due to the magnetic zigzag edges.
description: 22 pages, 6 figures
Monitoring, sensor data, privacy, and consumer behavior : the case of usage-based automobile insurance
Creators: name: Miremad, Soleymanian
Publisher: name: University of British Columbia
Year: 2019

description: The Internet of Things (IoT)-powered services can deliver incredible monitoring capabilities to businesses and their customers. The IoT continues to evolve and reshape the businesses in different industries by collecting individuals’ sensor-based data. In the insurance industry, Usage-Based Insurance (UBI) is a recent auto insurance innovation that enables insurance companies to collect individual-level driving data, provide feedback on driving performance, and offer individually targeted price discounts based on each consumer’s driving behavior. In this thesis, we study consumer behavior from different perspectives in the presence of UBI program that relies on using consumers’ private data in three independent essays. In the first essay, we examine and estimate the effect of the UBI policy on changing the customers’ driving behavior. By considering a fixed-effect model of drivers, we find that motorists improve their driving behavior, resulting in being safer drivers, providing a meaningful benefit for both the driver and the insurance company. We also find heterogeneous effects across different demographic groups. For example, younger drivers are more likely to adopt UBI and they also improve their UBI performance faster than older drivers. To examine the tradeoffs consumer makes between costs (including privacy) and economic benefits of UBI, we study consumers’ adoption and usage of UBI by developing a dynamic structural model in the second essay. Our results suggest that the costs of being monitored (including privacy concerns) are significant, and they vary across demographic characteristics. Using a natural experiment resulting from a major (exogenous) data breach to examine the effect of changing privacy perception, we also find that the data breach is associated with a decrease in retention rates among currently monitored customers. In the third essay, we evaluate the effect of the UBI policy on changing the insurance coverage choice at the renewal time compared to the initial purchase. The results suggest that the UBI customers are significantly more likely to change their coverage choice than non-UBI customers at the renewal time. We capture price discount and information effects as two major sources of difference between UBI and non-UBI customers that could affect the different pattern of insurance coverage choice.
Air pollution particulate matter effects on adaptive human antimycobacterial immunity
Creators: name: Ibironke, Olufunmilola
Publisher: name: No Publisher Supplied
Year: 2019

description: Tuberculosis (TB) and air pollution both contribute significantly to the global burden of disease. Epidemiological studies provide evidence that indoor (household) air pollution increases the risk of new infections with Mycobacterium tuberculosis (M.tb) and development of TB. The mechanisms by which exposure to ‘real-world’-derived urban ambient (outdoor) particulate matter (PM) adversely affects M.tb-specific human host T cell functions in vitro have not been studied. In this thesis research, we explored the effects of air pollution PM2.5 (≤2.5 µm, median aerodynamic diameter) collected in the Iztapalapa municipality of Mexico City on M.tb-specific T cell functions in human peripheral blood mononuclear cells (PBMC). Upon in vitro exposure, PM2.5 was observed in clusters of free, non-membrane-bound particle agglomerates in the cytoplasm of the exposed cells. PM2.5 exposure did not alter the expression of activation marker CD54 on antigen presenting cells (APC), however, increased the expression of CD80 while decreasing the constitutively expressed CD86 on monocytes during M.tb infection. Exposure to PM2.5 of M.tb-infected PBMC led to an increase of intracellular growth of M.tb, indicating loss of M.tb growth controlling capacity of the cells that occurred independent of PM-induced changes to PBMC viability. Exposure of PBMC to PM2.5 also altered M.tb-specific T-cell immune responses by (1) decreasing the surface expression of early T cell activation markers CD69 and CD25 on T cells, (2) inhibiting the intracellular expression of both interferon-gamma (IFN-γ) and tumor necrosis factor alpha (TNF-α), and (3) decreasing the expression of T-box transcription factor TBX21 (T-bet) known to directly regulate the expression of IFN-γ. In contrast, PM2.5 exposure increased the intracellular expression of the anti-inflammatory cytokine interleukin 10 (IL-10) and the phosphorylation of transcription factor STAT-3. The observed PM2.5-induced decrease in the expression of human pro-inflammatory M.tb-specific T cell cytokines, and the loss of intracellular M.tb growth control are associated with the increased expression of anti-inflammatory cytokine IL-10 and decreased expression of transcription factor T-bet. Together, the findings of this study suggest that the PM2.5-induced decrease of critical human host immune cell functions against M.tb represents the mechanistic correlate of epidemiological observations that outdoor air pollution exposure is associated with increases in the incidence of TB and with adversely modified TB treatment outcomes.
The Lerch Zeta Function II. Analytic Continuation
Creators: name: Lagarias, Jeffrey C.
name: Li, W. -C. Winnie
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11M35

description: This is the second of four papers that study algebraic and analytic structures associated with the Lerch zeta function. In this paper we analytically continue it as a function of three complex variables. We that it is well defined as a multivalued function on the manifold M equal to C^3 with the hyperplanes corresponding to integer values of the two variables a and c removed. We show that it becomes single valued on the maximal abelian cover of M. We compute the monodromy functions describing the multivalued nature of this function on M, and determine various of their properties.
description: 29 pages, 3 figures; v2 notation changes, homotopy action on left
title: Ð¡Ð¸Ð½ÑÐµÐ· Ð½Ð°Ð½Ð¾ÑÐ°ÑÑÐ¸Ñ MnO2 Ð¸ Ð¸Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð´Ð»Ñ ÑÐ°Ð½ÑÐ°Ð»Ð¾Ð²ÑÑ ÑÐ¸Ð¿-ÐºÐ¾Ð½Ð´ÐµÐ½ÑÐ°ÑÐ¾ÑÐ¾Ð²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Synthesis of MnO2 nanoparticles and their use for tantalum chip capacitors
Creators: name: ÐÐµÐ»ÑÑÐ°ÐºÐ¾Ð², ÐÐ°ÐºÑÐ¸Ð¼
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð´Ð¸Ð¾ÐºÑÐ¸Ð´ Ð¼Ð°ÑÐ³Ð°Ð½ÑÐ°
Ð¿Ð¸ÑÐ¾Ð»ÑÐ·Ð¸Ñ
Ñ Ð¸Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¾ÑÐ°Ð¶Ð´ÐµÐ½Ð¸Ðµ
manganese dioxide
pyrolusite
chemical deposition

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð±ÑÐ» Ð¿ÑÐ¾Ð²ÐµÐ´ÑÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð½Ð°ÑÑÐ½Ð¾-ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð»Ð¸ÑÐµÑÐ°ÑÑÑÑ Ð¿Ð¾ Ð¸ÑÑÐ»ÐµÐ´ÑÐµÐ¼Ð¾Ð¹ ÑÐµÐ¼Ðµ. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð° ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÐ¾ÑÐºÐ° Ð´Ð¸Ð¾ÐºÑÐ¸Ð´Ð° Ð¼Ð°ÑÐ³Ð°Ð½ÑÐ°. ÐÐ¾Ð´Ð¾Ð±ÑÐ°Ð½Ñ ÑÐµÐ¶Ð¸Ð¼Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÐ¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ ÑÐ¸Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¾ÑÐ°Ð¶Ð´ÐµÐ½Ð¸Ñ. ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¾ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÑ Ð¾ÑÐ¶Ð¸Ð³Ð°, Ð²ÑÐµÐ¼ÐµÐ½Ð¸ Ð¾ÑÐ¶Ð¸Ð³Ð° Ð¸ ÐºÐ¾Ð½ÑÐµÐ½ÑÑÐ°ÑÐ¸Ð¸ ÑÐ°ÑÑÐ²Ð¾ÑÐ° Ð½Ð° ÑÐ°Ð·Ð¾Ð²ÑÐ¹ ÑÐ¾ÑÑÐ°Ð² Ð¸ ÑÑÑÑÐºÑÑÑÑ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð²Ð¾Ð³Ð¾ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð°. ÐÐ±ÑÐ°Ð·ÑÑ Ð¾ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸Ð·Ð¾Ð²Ð°Ð½Ñ Ð¼ÐµÑÐ¾Ð´Ð°Ð¼Ð¸ ÑÐµÐ½ÑÐ³ÐµÐ½Ð¾ÑÑÑÑÐºÑÑÑÐ½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¸ ÑÐºÐ°Ð½Ð¸ÑÑÑÑÐµÐ¹ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð¹ Ð¼Ð¸ÐºÑÐ¾ÑÐºÐ¾Ð¿Ð¸Ð¸. ÐÐ°Ð¸Ð»ÑÑÑÐ¸Ðµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð±ÑÐ»Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð¾ÑÐ¶Ð¸Ð³Ð° Ð¿ÑÐ¸ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐµ 400ÂºÐ¡. ÐÐ°Ð½Ð½ÑÐ¼ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð¿Ð¾Ð»ÑÑÐµÐ½ Ð¾Ð´Ð½Ð¾ÑÐ°Ð·Ð½ÑÐ¹ Ð¿Ð¾ÑÐ¾ÑÐ¾Ðº Î²-MnO2 Ñ ÑÐ°Ð·Ð¼ÐµÑÐ¾Ð¼ ÑÐ°ÑÑÐ¸Ñ Ð´Ð¾ 2 Ð¼ÐºÐ¼. ÐÐ¾Ð¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»ÑÐ½Ð°Ñ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ° Ð² ÑÐ°ÑÐ¾Ð²Ð¾Ð¹ Ð¼ÐµÐ»ÑÐ½Ð¸ÑÐµ Ð¿ÑÐ¸Ð²Ð¾Ð´Ð¸Ñ Ðº ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ñ ÑÑÐµÐ´Ð½ÐµÐ³Ð¾ ÑÐ°Ð·Ð¼ÐµÑÐ° ÑÐ°ÑÑÐ¸Ñ Ð´Ð¾ 70 Ð¼ÐºÐ¼.
description: In this paper, an analysis of scientific and technical literature on the topic under study was carried out. On the basis of the analysis, a technology for producing manganese dioxide powder is proposed. Modes of powder production by chemical deposition were selected. The influence of the annealing temperature, annealing time, and solution concentration on the phase composition and structure of the powder material has been investigated. The samples were characterized by X-ray structural analysis and scanning electron microscopy. The best results were obtained using annealing at 400 Â°C. This method was used to obtain a single-phase Î²-MnO2 powder with a particle size of up to 2 microns. Additional processing in a ball mill increases the average particle size to 70 microns.
Hydrogeology and Ground-Water Monitoring of Coal-Ash Disposal Sites in a Karst Terrane near Burnside, South-Central Kentucky
Creators: name: Hutcheson, Shelley Minns
name: Sendlein, Lyle V. A.
name: Dinger, James S.
name: Currens, James C.
name: Sahba, Arsin M.
Publisher: name: Kentucky Geological Survey, University of Kentucky
Year: 1997

description: Abstract:
The effects of two coal-ash disposal facilities on ground-water quality at the John Sherman Cooper Power Plant, located in a karst region of south-central Kentucky, were evaluated using dye traces in springs. Springs were used for monitoring rather than wells, because in a karst terrane wells are unlikely to intercept individual conduits.
A closed-out ash pond located over a conduit-flow system discharges to three springs in the upper Salem and Warsaw Formations along Lake Cumberland. Water discharging from these downgradient springs is similar to springs unaffected by ash-disposal facilities and is a calcium-bicarbonate type. No constituent concentrations found in this flow system exceeded maximum contaminant levels (MCL’s) or secondary maximum contaminant levels (SMCL’s) defined by the U.S. Environmental Protection Agency.
An active ash pond is situated over another conduit-flow system that discharges to springs in the lower St. Louis Limestone. Water discharging from these downgradient springs is intermediate between the calciumbicarbonate type of the unaffected springs and the calcium-sulfate type of the active ash pond. No constituent concentrations found in this flow system exceeded MCL’s or SMCL’s.
A third flow system associated with a coal stockpile adjacent to the plant is delineated by springs in the St. Louis Limestone and the Salem and Warsaw Formations that discharge calcium-sulfate type water. Chromium and cadmium concentrations exceeded MCL’s in at least one sample from this flow system. Iron, manganese, sulfate, and total dissolved solid concentrations exceeded SMCL’s in at least one sample.
The closed-out ash pond appears to have no adverse impact on the water quality, nor does the active ash pond. In general, the coal stockpile has a more adverse impact on ground-water quality in the study area than the ash-disposal facilities.
Copyright: © 1997 by University of Kentucky, Kentucky Geological Survey
Funding information: We would like to thank the Electric Power Research Institute, the National Rural Electric Cooperative Association, and East Kentucky Power Cooperative for their monetary support of this project; Meg Smath for editing the report; and Mike Murphy for drafting the illustrations.
MATHEMATICAL MODELING OF FOOD WEB SYSTEM WITH PREY  HARVESTING
Creators: name: EFREM TSEGAYE WOLANA
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: We proposed and studied a mathematical model which describes the  dynamics of two  preys  and
one  predator  web  system  with  prey  harvesting  in  which  one  predator  shows  a  Holling  type  II
functional response to one prey that is also harvested and a ratio- dependent response to the other
prey.  Analysis of the model showed that  the three species would co-exist if the first prey were
not harvested beyond their intrinsic growth rate.  Numerical simulation of the model are carried
out and showing the behavior of the system changes mostly from a limit cycle to a stable spiral
and vice-versa when values of some parameters such as harvesting rate of prey1, mortality rate
of predator, anti-predator behavior of prey2  are varied; this implied that these parameters can be
controlled.
The Lerch Zeta Function I. Zeta Integrals
Creators: name: Lagarias, Jeffrey C.
name: Li, W. -C. Winnie
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11M35

description: This is the first of four papers that study algebraic and analytic structures associated to the Lerch zeta function. This paper studies "zeta integrals" associated to the Lerch zeta function using test functions, and obtains functional equations for them. Special cases include a pair of symmetrized four-term functional equations for combinations of Lerch zeta functions, found by A. Weil, for real parameters (a,c) with 0< a, c< 1. It extends these functions to real a, and c, and studies limiting cases of these functions where at least one of a and c takes the values 0 or 1. A main feature is that as a function of three variables (s, a, c), with a, c being real variables, the Lerch zeta function has discontinuities at integer values of a and c. For fixed s, the function is discontinuous on part of the boundary of the closed unit square in the (a,c)-variables, and the location and nature of these discontinuities depend on the real part of s. Analysis of this behavior is used to determine membership of these functions in L^p([0,1]^2, da dc) for 1 \le p < \infty, as a function of the real part of s. The paper also defines generalized Lerch zeta functions associated to the oscillator representation, and gives analogous four-term functional equations for them.
description: 38 pages, 1 figure; v2 37 pages, minor text changes
NUMERICAL SOLUTIONS OF PARABOLIC DIFFERENTIAL  EQUATIONS:FINITE DIFFERENCE METHOD
Creators: name: AYANA MAMO SHIBIRU
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: This Thesis presents Numerical solutions of Parabolic differential equations finite difference
method.  Parabolic  differential  equation  of  second  order  was  studied  using  FDM .  In  this
Thesis  ,we  discussed  basic  things  of  these  methods. Secondly  ,we  studied   boundary
conditions involving derivatives and obtain finite difference formulas by using forward, back
ward and central difference formulas approximating  PDE of boundary value problems. The
last section devoted to determining an approximate solution for boundary value problems .To
identify the efficient of the three methods explicit, implicit and Crank Nicolson methods were
discussed. The advantage and disadvantage of the three methods were explained briefly. The
stability of these methods were shown by using Fourier method and Matrix method by using
Mat-lab. Additionally Sketch pad software were usedto draw tables and different sketches.
The error between the Numerical solution obtained by formulas and the numerical solutions
by soft ware were analyzed.
TRANSFER OF HEAT WITH CONVECTION
Creators: name: KEMAL SADO
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: In this thesis work we have studied the problem of heat transfer. We have obtained the
solutions of the heat equation by analytical method, computational method and also  by
using computer programming (C++) method. We have described the solution of the heat
equation  by flow chart method. We have analyzed the solutions by using Mathematica
software.
DECODE: Data-driven Energy Consumption Prediction leveraging Historical Data and Environmental Factors in Buildings
Creators: name: Mishra, Aditya
name: Lone, Haroon R.
name: Mishra, Aayush
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Energy prediction in buildings plays a crucial role in effective energy management. Precise predictions are essential for achieving optimal energy consumption and distribution within the grid. This paper introduces a Long Short-Term Memory (LSTM) model designed to forecast building energy consumption using historical energy data, occupancy patterns, and weather conditions. The LSTM model provides accurate short, medium, and long-term energy predictions for residential and commercial buildings compared to existing prediction models. We compare our LSTM model with established prediction methods, including linear regression, decision trees, and random forest. Encouragingly, the proposed LSTM model emerges as the superior performer across all metrics. It demonstrates exceptional prediction accuracy, boasting the highest R2 score of 0.97 and the most favorable mean absolute error (MAE) of 0.007. An additional advantage of our developed model is its capacity to achieve efficient energy consumption forecasts even when trained on a limited dataset. We address concerns about overfitting (variance) and underfitting (bias) through rigorous training and evaluation on real-world data. In summary, our research contributes to energy prediction by offering a robust LSTM model that outperforms alternative methods and operates with remarkable efficiency, generalizability, and reliability.
description: 10 pages, 7 figures, 7 tables
COMPARISON GE & AGE METHODES ON HYPERBOLICAL  EQUATIONS   (WAVE EQUATIONS)
Creators: name: ASHENAFI WONDIMU AZEZE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: The  main  objective  of  this  thesis  is  a  study  of  the  numerical  solution  of  hyperbolical  partial
differential  equations.  Deals  with  a  general  description  and  classification  of  partial  differential
equations.  Some  useful  mathematical  preliminaries  are  outlined.  By  employing  finite  differences
the  differential  system  is  replaced  by  a  large  matrix  system.  Important  concepts  such  as
convergence,  consistency,  stability  and  accuracy  are  discussed  with  some  detail.  By  coupling
existing difference equations to approximate the given Hyperbolic, we arrive at the set of explicit
equations,  the  equations  of  the  point  to  the  right  and  left  boundary.  The  GE  schemes  are
Constructed  along  a  similar  line  as  their  accuracies,  stability  and  truncation  error  established.
Based  on  the  scheme  a  class  of  parallel  Alternative  group  explicit  (AGE)  iterative  methods  is
derived accuracy, stability and convergence analysis is given.
Compton rockets and the minimum power of relativistic jets
Creators: name: Ghisellini, G.
name: Tavecchio, F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The power of a relativistic jet depends on the number of leptons and protons carried by the jet itself. We have reasons to believe that powerful gamma-ray flat spectrum radio sources emit most of their radiation where radiative cooling is severe. This helps to find the minimum number of emitting leptons needed to explain the radiation we see. The number of protons is more uncertain. If there is one proton per electron, they dominate the jet power, but they could be unimportant if the emission is due to electron-positron pairs. In this case the total jet power could be much smaller. However, if the gamma-ray flux is due to inverse Compton scattering with seed photons produced outside the jet, the radiation is anisotropic also in the comoving frame, making the jet to recoil. This Compton rocket effect is strong for light, electron-positron jets, and negligible for heavy, proton dominated jets. No significant deceleration, required by fast superluminal motion, requires a minimum number of protons per lepton, and thus a minimum jet power. We apply these ideas to the blazar 3C 454.3, to find a robust lower limit to its total jet power: if the viewing angle theta_v ~ 1/Gamma the jet power is larger than the accretion luminosity L_d for any bulk Lorentz factor Gamma. For theta_v =0, instead, the minimum jet power can be smaller than L_d for Gamma<25. No more than ~10 pairs per proton are allowed.
description: 5 pages, 2 figures, accepted for publication as a letter to MNRAS
MASSIVE SCALAR FIELD IN BIANCHI TYPE-V METRIC
Creators: name: YESHIHAREG GEREMEW
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: We have considered Bianchi type –V  space time in the presence of  massive scalar field in  the
frame work of Einstein’s theory. We have derived Einstein’s field equations  in the presence
of scalar field coupled with mass parameter.    Some physical and geometrical properties of
the solutions have been discussed by using mathematica software.
MATHEMATICAL MODELING ON THE INTERACTION BETWEEN TUMOR AND THE IMMUNE SYSTEM
Creators: name: GIZACHEW CHUBARO
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: In  this  thesis  a  mathematical  model  is  presented  that  describes  growth,  immune  escape
and treatment of tumors.  The model consists of a system of non-linear ordinary differential
equations describing tumor cells and immune effectors, as well as the immune-stimulatory
and suppressive cytokines IL-2 and TGF-

. In this research work, we design a mathematical
model in which we want to investigate the effect of parameters on the model. Again we also
investigate  the  existence,  positivity,  boundedness  of  the  solutions  and  stability  of  the
equilibrium points and evaluate the conditions at which the tumor cells will occur and persist
using  the  parameters  whether  the  disease  becomes  persistent  or  die  out  depending  on  the
basic parameters of the model.
Scale-Invariant Local Descriptor for Event Recognition in 1D Sensor Signals
Creators: name: Xie, Jierui
name: Beigi, Mandis S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Multimedia (cs.MM)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this paper, we introduce a shape-based, time-scale invariant feature descriptor for 1-D sensor signals. The time-scale invariance of the feature allows us to use feature from one training event to describe events of the same semantic class which may take place over varying time scales such as walking slow and walking fast. Therefore it requires less training set. The descriptor takes advantage of the invariant location detection in the scale space theory and employs a high level shape encoding scheme to capture invariant local features of events. Based on this descriptor, a scale-invariant classifier with "R" metric (SIC-R) is designed to recognize multi-scale events of human activities. The R metric combines the number of matches of keypoint in scale space with the Dynamic Time Warping score. SICR is tested on various types of 1-D sensors data from passive infrared, accelerometer and seismic sensors with more than 90% classification accuracy.
An FCNN-Based Super-Resolution mmWave Radar Framework for Contactless Musical Instrument Interface
Creators: name: Smith, Josiah W.
name: Furxhi, Orges
name: Torlak, Murat
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: Multimedia (cs.MM)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this article, we propose a framework for contactless human-computer interaction (HCI) using novel tracking techniques based on deep learning-based super-resolution and tracking algorithms. Our system offers unprecedented high-resolution tracking of hand position and motion characteristics by leveraging spatial and temporal features embedded in the reflected radar waveform. Rather than classifying samples from a predefined set of hand gestures, as common in existing work on deep learning with mmWave radar, our proposed imager employs a regressive full convolutional neural network (FCNN) approach to improve localization accuracy by spatial super-resolution. While the proposed techniques are suitable for a host of tracking applications, this article focuses on their application as a musical interface to demonstrate the robustness of the gesture sensing pipeline and deep learning signal processing chain. The user can control the instrument by varying the position and velocity of their hand above the vertically-facing sensor. By employing a commercially available multiple-input-multiple-output (MIMO) radar rather than a traditional optical sensor, our framework demonstrates the efficacy of the mmWave sensing modality for fine motion tracking and offers an elegant solution to a host of HCI tasks. Additionally, we provide a freely available software package and user interface for controlling the device, streaming the data to MATLAB in real-time, and increasing accessibility to the signal processing and device interface functionality utilized in this article.
description: Accepted to IEEE Transactions on Multimedia
DEMO vežba: Merenja sa akcelerometrima
Creators: name: Miljković, Nadica
Publisher: name: Zenodo
Year: 2020
Subjects: accelerometer
sensor
Arduino
sound
resonant frequency

description: Prezentacija za demo vežbu za predmet Merni sistemi u računarstvu (13E053MSR) na Elektrotehničkom fakultetu, Univerziteta u Beogradu na temu merenja sa akcelerometrima. Video demonstracija je dostupna na YouTube-u na linku https://youtu.be/hqpq2De71Vo.
BASIC SOLUTION OF TRANSPORTATION PROBLEM USING THE CONCEPT OF BEST CANDIDATE METHOD AND ITS COMPARISON WITH OTHER METHODS
Creators: name: ETIFWORK MESSELE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Transportation problem is one of the classical problems in operational research targeted to
transport a material from various sources to different destinations at a minimum total cost.
This research studies the basic solution of transportation problem using the concept of Best
Candidate Method and compares it with the initial solutions obtained by North-West Corner
Rule, Least Cost Method and Vogel’s Approximation Method. The purpose of this study is to
evaluate the initial basic feasible solution of transportation problem by existing (North-West
Corner, Least Cost, Vogel’s Approximation and Best Candidate) methods, modifying the Best
Candidate Method and comparing the modified Best Candidate Method with existing methods.
To compare the efficiency of the existing heuristic methods with that of modified Best Candidate
Method, computational experiments are performed by randomly selecting seven transportation
problems. The analysis is performed by comparing the average number of iterations required to
produce the optimal solution and percent difference between the initial and the optimal solutions
.The result of the this study shows that modified Best Candidate Method is better than existing
methods in providing the initial basic feasible solution and gives optimal solution in less number
of iterations when compared with the existing method. In some cases the Modified Best Candi
date Method gives a combination such that the initial basic feasible solution is itself the optimal
solution of the problem.
Anomaly Detection in Crowds by Fusion of Novel Feature Descriptors
Creators: name: Abdullah J. Alzahrani, Sultan Daud Khan
Publisher: name: TuEngr Group
Year: 2020
Subjects: Crowd analysis
Crowd behavior
Supervised anomaly detection
Trajectories extraction
Anomalous event
Anomalous trajectory
Feature fusion
Motion feature
Clustering algorithm.

description: International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies, 11, 16, 11A16B: 1-10
Magnetic ground state of pyrochlore oxides close to metal-insulator boundary probed by muon spin rotation
Creators: name: Miyazaki, M.
name: Kadono, R.
name: Satoh, K. H.
name: Hiraishi, M.
name: Takeshita, S.
name: Koda, A.
name: Yamamoto, A.
name: Takagi, H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magnetism of ruthernium pyrochlore oxides A2Ru2O7 (A = Hg, Cd, Ca), whose electronic properties within a localized ion picture are characterized by non-degenerate t2g orbitals (Ru5+, 4d3) and thereby subject to geometrical frustration, has been investigated by muon spin rotation/relaxation (muSR) technique. The A cation (mostly divalent) was varied to examine the effect of covalency (Hg > Cd > Ca) on their electronic property. In a sample with A = Hg that exhibits a clear metal-insulator (MI) transition below >> 100 K (which is associated with a weak structural transition), a nearly commensurate magnetic order is observed to develop in accordance with the MI transition. Meanwhile, in the case of A = Cd where the MI transition is suppressed to the level of small anomaly in the resistivity, the local field distribution probed by muon indicates emergence of a certain magnetic inhomogeneity below » 30 K. Moreover, in Ca2Ru2O7 that remains metallic, we find a highly inhomogeneous local magnetism below >>25 K that comes from randomly oriented Ru moments and thus described as a "frozen spin liquid" state. The systematic trend of increasing randomness and itinerant character with decreasing covalency suggests close relationship between these two characters. As a reference for the effect of orbital degeneracy and associated Jahn-Teller instability, we examine a tetravalent ruthernium pyrochlore, Tl2Ru2O7 (Ru4+, 4d4), where the result of muSR indicates a non-magnetic ground state that is consistent with the formation of the Haldane chains suggested by neutron diffraction experiment.
description: 12 pages, 13 figures
Urban labour markets and transportation
Creators: name: Tyndall, Justin
Publisher: name: University of British Columbia
Year: 2019

description: This thesis will study how transportation systems facilitate commuting, affect labour market outcomes and alter the urban spatial equilibriums of workers and firms. Workers living in cities benefit from spatial proximity to local job opportunities. The ability of workers to access the labour market is enabled by existing public and private transportation networks. Transportation policy that expands the set of opportunities faced by workers could help overcome spatial matching problems and generate welfare improvements. The first study in this thesis estimates the causal effect of New York City’s subway system on neighbourhood unemployment rates. I show that a reduction in public transportation access leads to a rise in the local unemployment rate. The second study analyses light rail transit systems in four US cities. While light rail can generate benefits in terms of improving the transportation network, induced household sorting has important consequences regarding the distribution of benefits. The third study examines the general consequences of increasing commuter mobility in US cities. Results show exogenous increases in mobility increase urban sprawl and do not result in improvements in aggregate metropolitan labour market outcomes.
COMPARISON OF FINITE DIFFERENCE METHOD AND CUBIC SPLINE METHOD FOR ESTIMATING MISSING POINT
Creators: name: ASHENAFI ABEBE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Finite difference calculus has become very important due to its wide variety of application
in routine life such as, a great use for Mathematicians as well as Computer Scientists for soluti
on of the scientific, business and engineering problems.In this thesis we determined the missing
points by finite difference method and cubic spline method for comparing and selecting the better
method of finding the value of missed point. At the same time this work identify the application
and formulation of cubic spline method for smooth piecewise function and for finite difference
method. the thesis also justifies better approximation from finite difference method and cubic
spline method.