Results 41 to 50 of about 13,457,474 (289)

Origin of Dark Current Robustness in Photomultiplication Organic Photodetectors Enabled by Ionic Conjugated Electron‐Blocking Layers

Advanced Materials, EarlyView.
Ionic conjugated polyelectrolyte electron‐blocking layers enable photomultiplication organic photodetectors with dark current robustness up to −10 V and external quantum efficiencies exceeding 3000%. Fowler–Nordheim tunneling, interfacial dipole, trap density of states, and noise analyses reveal how ionic conjugated polyelectrolytes suppress electron ...
Yelim Kang, Min Hun Jee, Shuai Zhang, Sang Heon Lee, Jung Min Ha, Xingchao Zhao, Xiaoling Ma, Huiseong Shin, Changhwan Shin, Soonyong Lee, Fujun Zhang, Jae Won Shim, Han Young Woo   +12 more
wiley   +1 more source

Attività solare, effetti ionosferici e servizi NRTK: quali connessioni?

GEOmedia, 2012
Come noto anche dalle più recenti cronache dei quotidiani l’attività solare si trova in un periodo di rapida crescita, all’interno di un ciclo periodico della durata di 11 anni.
Francesco Mancini, Marco Dubbini, Francesco Stecchi   +2 more
doaj   +2 more sources

Model evaluation of accuracy of obtaining total electron content by the method of spaced reception of low Earth orbit satellite signals

Vestnik MGTU, 2022
A model-based technique to estimate the accuracy of the ionospheric total electron content (TEC) based on the data from spaced receivers of low Earth orbit satellite signals has been suggested. That allows us to estimate the total electron content errors
Cherniakov S. M.
doaj   +1 more source

Variation of Total Electron Content [TEC] and Their Effect on GNSS over Akure, Nigeria

Applied Physics Research, 2012
The effect of Space weather is usually linked to disturbances in the ionosphere (gradients in the Total electron content (TEC)). This has significant effect especially for GPS users causing degradation in range measurements, loss of lock by the receiver of the GPS signal. Knowledge of these TEC gradients is important to various GPS users.
Rufus Sola Fayose, Rabiu Babatunde, Olakunle Oladosu, Keith Groves   +3 more
openaire   +2 more sources

PEMANTAUAN ANOMALI TOTAL ELECTRON CONTENT (TEC) BERKAITAN DENGAN KEJADIAN GEMPABUMI DI SEKITAR WILAYAH JAWA TAHUN 2015 [PDF]

, 2016
Abstrak Penelitian tentang prekursor gempabumi yang terintegrasi melalui pengamatan parameter seismik, elektromagnetik, geokimia, geoatmosferik serta parameter ionosfer telah dilakukan untuk mendapatkan tanda-tanda awal sebelum gempabumi kuat di ...
Sulastri, Sulastri, Bambang Sunardi, Sulastri Sulastri, Sunardi, Bambang   +3 more
core   +1 more source

Computation‐Less, Bias‐Free, and Ultra‐Broadband Photodetector for On‐Chip Edge Extraction

Advanced Materials, EarlyView.
A computation‐less, bias‐free, and ultra‐broadband photodetector directly converts local optical‐intensity gradients into signed photocurrents through a position‐dependent bi‐directional photoresponse. This intrinsic physical sensing mechanism enables single‐pixel edge extraction from the near‐infrared to the long‐wave infrared at room temperature ...
Jintao Fu, Hao Jiang, Xingsi Liu, Fakun Wang, Yang Peng, Qi Jie Wang, Weibo Gao, Xingzhan Wei, Cheng‐Wei Qiu   +8 more
wiley   +1 more source

Ionospheric Total Electron Content (TEC) Anomalies Associated with Earthquakes through Karhunen-Loeve Transform (KLT)

Terrestrial, Atmospheric and Oceanic Sciences, 2010
This research uses eigenvalue characteristics of the Karhunen-Loéve Transform of ionosphereic total electron content (TEC) to investigate precursors for 12 earth quakes of Richter magnitude scale M ³ 5.0 in a local region of latitude 23.00 to 24.00°N and
Jyh-Woei Lin
doaj   +1 more source

Spectral Selective and Low‐Noise Thin‐Film Organic Photodetectors Enabled by Electric‐Field Engineering

Advanced Materials, EarlyView.
Molecular doping redistributes the internal electric field in organic photodetectors, providing a new degree of freedom to spatially control carrier transport and collection. Simulations and experiments reveal distinct transport pathways for injected and photogenerated carriers, enabling low dark current under reverse bias and wavelength‐selective ...
Jingwei Yi, Yi Yang, Vahid Mahdikhah, Yibo Shi, Jordan Shanahan, Apurva Gadikar, Yusen Pei, Xinyun Dong, Jacob P Mauthe, Reece Henry, Kenan Gundogdu, Brendan T. O'Connor, Aram Amassian, Harald Ade, Wei You, Franky So   +15 more
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Application of Kalman filter in detecting pre-earthquake ionospheric TEC anomaly

Geodesy and Geodynamics, 2011
: As an attempt, the Kalman filter was used to study the anomalous variations of ionospheric Total Electron Content (TEC) before and after Wenchuan Ms8.0 earthquake, these TEC data were calculated from the GPS data observed by the Crustal Movement ...
Zhu Fuying, Wu Yun, Fu Ningbo
doaj   +1 more source