1,272 research outputs found
On the trace theorem to Volterra-type equations with local or non-local derivatives
This paper considers traces at the initial time for solutions of evolution
equations with local or non-local derivatives in vector-valued weighted
spaces. To achieve this, we begin by introducing a generalized real
interpolation method. Within the framework of generalized interpolation theory,
we make use of stochastic process theory and two-weight Hardy's inequality to
derive our trace and extension theorems. Our results encompass findings
applicable to time-fractional equations with broad temporal weight functions
Characterizations of weighted Besov and Triebel-Lizorkin spaces with variable smoothness
In this paper, we study different types of weighted Besov and
Triebel-Lizorkin spaces with variable smoothness. The function spaces can be
defined by means of the Littlewood-Paley theory in the field of Fourier
analysis, while there are other norms arising in the theory of partial
differential equations such as Sobolev-Slobodeckij spaces. It is known that two
norms are equivalent when one considers constant regularity function spaces
without weights. We show that the equivalence still holds for variable
smoothness and weights, which is accomplished by making use of shifted maximal
functions, Peetre's maximal functions, and the reverse H\"older inequality.
Moreover, we obtain a weighted regularity estimate for time-fractional
evolution equations and a generalized Sobolev embedding theorem without
weights.Comment: 36 page
Efficient and Privacy Preserving Group Signature for Federated Learning
Federated Learning (FL) is a Machine Learning (ML) technique that aims to
reduce the threats to user data privacy. Training is done using the raw data on
the users' device, called clients, and only the training results, called
gradients, are sent to the server to be aggregated and generate an updated
model. However, we cannot assume that the server can be trusted with private
information, such as metadata related to the owner or source of the data. So,
hiding the client information from the server helps reduce privacy-related
attacks. Therefore, the privacy of the client's identity, along with the
privacy of the client's data, is necessary to make such attacks more difficult.
This paper proposes an efficient and privacy-preserving protocol for FL based
on group signature. A new group signature for federated learning, called GSFL,
is designed to not only protect the privacy of the client's data and identity
but also significantly reduce the computation and communication costs
considering the iterative process of federated learning. We show that GSFL
outperforms existing approaches in terms of computation, communication, and
signaling costs. Also, we show that the proposed protocol can handle various
security attacks in the federated learning environment
Boosting thermal conductivity by surface plasmon polaritons propagating along a thin Ti film
We experimentally demonstrate a boosted in-plane thermal conduction by
surface plasmon polaritons (SPPs) propagating along a thin Ti film on a glass
substrate. Owing to a lossy nature of metal, SPPs can propagate over
centimeter-scale distance even with a supported metal film, and resulting
ballistic heat conduction can be quantitatively validated. Further, for a
100-nm-thick Ti film on glass substrate, a significant enhancement of in-plane
thermal conductivity compared to bulk value () is experimentally
shown. This study will provide a new avenue to employ SPPs for heat dissipation
along a supported thin film, which can be readily applied to mitigate hot-spot
issues in microelectronics.Comment: 3 figure
Chipped Pharmaceuticals from Production to in VIVO (in body) Drug Delivery Becoming Reality
AbstractAdvances in medical technology rely heavily on the collection and analysis of measured data to facilitate patient diagnosis and business decisions. The healthcare industry, particularly pharmaceuticals and diagnostic processes, has an ongoing need to improve item tracking and data collection to improve the quality of care while reducing cost. The remote, non-invasive characteristics of RFID can facilitate the information needs of healthcare without imposing additional burden onto the patient or staff. Properly deployed RFID enabled devices can provide convenient and accurate data for disease diagnosis, evaluation of prescription non-compliance and identification of medication dosage errors. This paper describes an all-encompassing RFID tracking system that begins with compliance documentation from the drug manufacturer through confirmation of patient compliance by capsule extraction from the bottle, into a pill case and ultimately ingested or inserted into the body. This RFID system can provide data for decision-making and facilitate compliance with FDA proposed e-pedigree requirements. This transcript provides an introduction to healthcare trends in order to motivate the need for a biocompatible RFID system. An approach to research as well as an in vitro tabletop test method is presented in light of pending research. The overall goal of the pending research is to develop biocompatible RFID tag components for use with systems beginning with the manufacturer and continuing through distribution to the point of interest within the patients body. Keywords RFID; e-pedigree; pharmaceuticals; trackin
Data of methylome and transcriptome derived from human dilated cardiomyopathy
AbstractAlterations in DNA methylation and gene expression have been implicated in the development of human dilated cardiomyopathy (DCM). Differentially methylated probes (DMPs) and differentially expressed genes (DEGs) were identified between the left ventricle (LV, a pathological locus for DCM) and the right ventricle (RV, a proxy for normal hearts). The data in this DiB are for supporting our report entitled “Methylome analysis reveals alterations in DNA methylation in the regulatory regions of left ventricle development genes in human dilated cardiomyopathy” (Bong-Seok Jo, In-Uk Koh, Jae-Bum Bae, Ho-Yeong Yu, Eun-Seok Jeon, Hae-Young Lee, Jae-Joong Kim, Murim Choi, Sun Shim Choi, 2016) [1]
- …