Results 61 to 70 of about 54,591 (261)

On the Impact of Memory Allocation on High-Performance Query Processing

open access: yes, 2019
Somewhat surprisingly, the behavior of analytical query engines is crucially affected by the dynamic memory allocator used. Memory allocators highly influence performance, scalability, memory efficiency and memory fairness to other processes.
Durner, Dominik   +2 more
core   +1 more source

Super‐Robust Telecommunications Enabled by Topological Half‐Supermodes

open access: yesAdvanced Science, EarlyView.
Through topological half‐supermode engineering, we realize a valley‐ridge gap waveguide that is directly compatible with conventional waveguides and features topological protection. This design halves the lateral size via a PEC boundary, enabling direct TE₁₀‐mode matching and robust bend‐immune transmission.
Rui Zhou   +8 more
wiley   +1 more source

Parallel and distributed processing in two SGBDS: A case study

open access: yesTecnura, 2017
Context: One of the strategies for managing large volumes of data is distributed and parallel computing. Among the tools that allow applying these characteristics are some Data Base Management Systems (DBMS), such as Oracle, DB2, and SQL Server. Method:
Francisco Javier Moreno   +2 more
doaj   +1 more source

Cardinality Estimation in DBMS: A Comprehensive Benchmark Evaluation [PDF]

open access: green, 2021
Yuxing Han   +13 more
openalex   +1 more source

High‐Speed Flexible Schottky Diodes Based on Carbon Nanotubes

open access: yesAdvanced Electronic Materials, EarlyView.
We demonstrate a flexible Schottky diode based on carbon nanotube network thin film, and the devices are fabricated via a low‐temperature process on a PI substrate, which exhibits excellent radio‐frequency characteristics, with a high responsivity 6 A/W at zero bias, a high intrinsic cut‐off frequency reaching 153 GHz, and an extrinsic cut‐off ...
Yan Li   +6 more
wiley   +1 more source

Data Management: 25 Years of Forecasts

open access: yesТруды Института системного программирования РАН, 2018
In October 2013, the eighth meeting of researchers in the field of databases was held. The first such meeting took place in February 1988, so that 25 years passed between them.
S. D. Kuznetsov
doaj   +1 more source

Optimasi Proses Klasterisasi di MySQL DBMS dengan Mengintegrasikan Algoritme MIC-Kmeans Menggunakan Bahasa SQL dalam Stored Procedure

open access: yesJurnal Teknologi Informasi dan Ilmu Komputer, 2020
Proses klasterisasi data di DBMS akan lebih efisien jika dilakukan langsung di dalam DBMS itu sendiri karena DBMS mendukung untuk pengelolaan data yang baik.
Issa Arwani
doaj   +1 more source

Screw‐Based Pill for Intelligent Robotic Extraction of Viscous Fluids in Medical Applications

open access: yesAdvanced Intelligent Systems, EarlyView.
Screw‐based pill for intelligent robotic extraction (S‐PIRE) is a magnetically actuated smart capsule with a motorized screw, 3‐axis sensor, and Bluetooth control for site‐specific and minimally invasive remote sampling of viscous fluids, overcoming passive diffusion limitations.
Prima Dewi Sinawang   +6 more
wiley   +1 more source

Use of Domestic DBMS within the Framework of the Educational Process in Conditions of Import Substitution

open access: yesСовременные информационные технологии и IT-образование
The article is devoted to current issues related to the transition to domestic software within the educational process. This became necessary due to the fact that many foreign companies involved in software development announced the suspension of their ...
Elena Shershneva   +2 more
doaj   +1 more source

Clusterix-Like BigData DBMS

open access: yesData Science and Engineering, 2020
Commercial OLAP systems are economically unavailable for organizations with limited financial capabilities. Analytical processing of large amounts of data in these organizations can be accomplished using open-source software systems on a cost-effective ...
Vadim A. Raikhlin, Roman K. Klassen
doaj   +1 more source

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