Results 111 to 120 of about 299,735 (337)
Database Consistency Using Update-Ordering in Distributed Databases
Journal of Algorithms & Computational Technology, 2007 Database consistency is one of the major issues in replicated database in distributed database systems. The logical design for the replicated nodes and the transaction management mechanism are two aspects that give a serious impact to the performance and
W. N. Shuhadah +4 more
doaj +1 more source
On Dependability in Distributed Databases [PDF]
, 1992 Distributed database availability, reliability, and mean transaction completion time are derived for repairable database systems in which each component is continuously available for repair.
Teorey, Toby J.
core
Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain
Advanced Materials, EarlyView.A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha +14 more
wiley +1 more source
Outlier Detection Credit Card Transactions Using Local Outlier Factor Algorithm (LOF)
IJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2019 Threats or fraud for credit card owners and banks as service providers have been harmed by the actions of perpetrators of credit card thieves. All transaction data are stored in the bank's database, but are limited in information and cannot be used as a ...
Silvano Sugidamayatno, Danang Lelono
doaj +1 more source
Analyzing the changing relationship between personal consumption and suicide mortality during COVID-19 pandemic in Japan, using governmental and personal consumption transaction databases [PDF]
, 2022 Ryusuke Matsumoto +4 more
openalex +1 more source
Performance analysis of static locking in replicated distributed database systems [PDF]
Data replication and transaction deadlocks can severely affect the performance of distributed database systems. Many current evaluation techniques ignore these aspects, because it is difficult to evaluate through analysis and time consuming to evaluate ...
Kuang, Yinghong, Mukkamala, Ravi
core +1 more source
A Family of Sodium Solid‐State Electrolytes Based on the NaGaxAl1‐xCl4 Solid Solution
Advanced Materials Interfaces, EarlyView.ABSTRACT Sodium‐based metal chloride solid electrolytes are promising for sodium solid‐state batteries due to their excellent oxidation stability, which, as shown for Li halides, can coexist with high ionic conductivity. To explore cationic substitution effects, we synthesized NaGaxAl1‐xCl4 (0 ≤ x ≤ 1) via ball milling and investigated structural and ...
Hao Guo, Matteo Bianchini
wiley +1 more source
A database transaction scheduling tool in Prolog [PDF]
, 2004 In this paper, we describe an item of "intelligent" educational software that is intended to help students taking university computer science courses to understand the fundamentals of transaction scheduling.
Barker, S. +3 more
core
Advanced Materials Technologies, EarlyView.ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel +4 more
wiley +1 more source
Additive Manufacturing of Ni‐Based Thermoelectric Materials for Waste Heat Recovery
Advanced Materials Technologies, EarlyView.Thermoelectric generators convert waste heat into electricity but are constrained by conventional fabrication. Here, laser powder bed fusion enables direct printing of customised n‐type Cu60Ni40 and p‐type Ni90Cr10 legs. The assembled module achieves 0.8% efficiency at ΔT = 419 K, demonstrating scalable additive manufacturing of eco‐friendly, design ...
Karolin Amstein +6 more
wiley +1 more source