Results 151 to 160 of about 23,837 (303)

Polymer informatics: Integrating data‐driven strategies, advanced machine learning, and automated synthesis for next‐generation polymer design

open access: yesInfoScience, EarlyView.
Designing new polymers for applications such as sustainable plastics, biomaterials, and 3D printing has traditionally been slow and expensive, relying heavily on trial‐and‐error experiments. This review shows how polymer informatics—the integration of large polymer databases, machine‐learning models, and automated robotic synthesis—enables fast ...
Md. Saiful Islam   +6 more
wiley   +1 more source

ETL process automation in data warehouse

open access: yes, 2018
Viens no liekākajiem, sarežģītākajiem un laikietilpīgākajiem uzdevumiem datu noliktavā ir ETL procesu izveide, jo ETL tieši ietekmē datu kvalitāti. Viens no veidiem, kā samazināt laiku un resursus, kas tiek iztērēti ETL ir izmantot automatizāciju, kas ...
Stone, Sigita
core  

Tin‐based perovskite light‐emitting diodes: Progress and perspective

open access: yesInfoScience, EarlyView.
This review assesses tin‐based perovskite light‐emitting diodes (PeLEDs), focusing on the limitations of Sn2+ oxidation–induced defects and uncontrolled crystallization. By evaluating advanced device engineering and structural innovations, this article highlights their viability in narrowband pure‐red displays and near‐infrared optical communication ...
Wenhao Bai   +7 more
wiley   +1 more source

Composition pinning growth for efficient and stable all‐inorganic Pb‐Sn perovskite solar cells

open access: yesInfoMat, EarlyView.
All‐inorganic Pb‐Sn perovskite solar cells are promising for low‐bandgap photovoltaics, but uneven Pb/Sn composition during film growth can create defects and reduce performance. In this study, composition pinning growth was used to hold the Pb/Sn ratio steady during CsPb0.5Sn0.5I3 crystallization, producing more uniform films and higher‐performing ...
Jin Kyoung Park   +6 more
wiley   +1 more source

Design and Realization of ETL System in Unionpay Data Warehouse

open access: yes, 2007
针对银联数据的特点,设计实现了银联数据仓库ETL系统。该系统采用模块化的设计方式,增强了系统的可控性和灵活性。元数据模块使ETL系统能够灵活地适应银联业务逻辑的频繁变化;调度模块采用线程池技术,改进了以往多线程技术,提高了数据抽取的效率和系统资源的使用率;日志、监控信息及通知模块解决了系统出错快速恢复的问题 ...
王磊, 李一凡, 赵怀慈
core  

Optimal Selection of the Effective Echo Time (TEeff) for T2‐Weighted Fast‐Spin‐Echo MRI of the Prostate at 3.0 T: Effect on Lesion Conspicuity

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Clinical T2‐weighted (T2W) MRI of prostate cancer (PCa) usually implements a 2D fast‐spin‐echo (FSE) sequence, but understanding the echo‐time‐dependent contrast behavior is not straightforward due to the complicated FSE signal evolution.
Dahan Kim   +10 more
wiley   +1 more source

A distributed analysis approach for pharmacovigilance data from electronic medical records in German university hospitals: the POLAR_MI ETL Pipeline. [PDF]

open access: yesBMC Med Inform Decis Mak
Kesselmeier M   +21 more
europepmc   +1 more source

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