Results 91 to 100 of about 1,941 (196)

Development of broadband ultraviolet pulsed laser using Ce:LiCAF crystal to determine SO\(_2\) gas concentration by differential absorption spectroscopy

Communications in Physics
Earth’s atmosphere is a mixture of many gases which include pollutants such as SO2, NO2, NO, and O3 that have absorption  in the ultraviolet (UV) wavelength region.
Minh Hong Pham, Diep Van Nguyen, Duong Van Pham, Tu Xuan Nguyen, Hieu Minh Do, Kieu Anh Thi Doan, Tiep Viet Phung, Hong Dang Luu, Dang Van Le, Bich Thi Vu, Marilou Cadatal-Raduban, Trung Van Dinh   +11 more
doaj   +1 more source

ESPRIT for DOA estimation

, 2023
Radar is a tool that has had a tremendous impact since its discovery. This thesis evaluates an algorithm called ESPRIT. ESPRIT is used in radar to estimate the angles to detected objects. The angle of an object is referred to as its DOA (Direction of arrival).
Grimsholm, Filip, Saarmann, Martin
openaire   +1 more source

Initial validation of ENVISAT/SCIAMACHY columnar CO by FTIR profile retrievals at the Ground-Truthing Station Zugspitze [PDF]

Atmospheric Chemistry and Physics, 2005
Carbon monoxide vertical profile retrievals from ground-based solar FTIR measurements at the Permanent Ground-Truthing Station Zugspitze (47.42° N, 10.98° E, 2964m a.s.l.), Germany are used to validate columnar CO retrieved from ENVISAT/SCIAMACHY
R. Sussmann, M. Buchwitz
doaj  

Validating tropospheric NO2 column density from GEMS version 3.0 and Tropospheric Chemistry Reanalysis version 2 from background to urban conditions over Japan: with a focus on diurnal variations

Progress in Earth and Planetary Science
This study validates tropospheric NO2 vertical column density (TropNO2 VCD) data from the Geostationary Environment Monitoring Spectrometer (GEMS) version 3.0 and the Tropospheric Chemistry Reanalysis version 2 (TCR-2) against Multi-Axis Differential ...
Phuc Thi Minh Ha, Yugo Kanaya, Takashi Sekiya, Hisahiro Takashima, Kengo Sudo, Yongjoo Choi, Limseok Chang, Hanlim Lee, Hyunkee Hong, Jhoon Kim   +9 more
doaj   +1 more source

The spatial distribution of the reactive iodine species IO from simultaneous active and passive DOAS observations [PDF]

Atmospheric Chemistry and Physics, 2010
We present investigations of the reactive iodine species (RIS) IO, OIO and I₂ in a coastal region from a field campaign simultaneously employing active long path differential optical absorption spectroscopy (LP-DOAS) as well as ...
K. Seitz, J. Buxmann, D. Pöhler, T. Sommer, J. Tschritter, T. Neary, C. O'Dowd, U. Platt   +7 more
doaj  

PEMAHAMAN TEOLOGIS TENTANG KEHIDUPAN DOA DAN MENARA DOA

JURNAL TABGHA
The life of prayer is a responsibility to set aside time to pray, to be disciplined in building a relationship with God, to have self-submission and reverence toward God, and to make prayer a necessity. Meanwhile, a prayer tower is an activity of prayer, praise, and worship that has taken place and is currently ongoing.
openaire   +1 more source

Acetylsalicylic acid use for artial fibrillation and bleeding risk. [PDF]

Can Fam Physician
Braschi É, Young J.
europepmc   +1 more source

A UV-DOAS-Based Multi-Scale Interaction Attention Network for Simultaneous Retrieval of NO and NO₂ in Gas Mixtures. [PDF]

Sensors (Basel)
Mu Y, Wen H.
europepmc   +1 more source

Hyperspectral Vertical Remote Sensing Bridges the Satellite-to-Surface Gap: Unraveling Height-Resolved Evolution Mechanisms of Atmospheric Formaldehyde in China. [PDF]

Environ Sci Technol
Chang B, Liu H, Chen M, Zhang C, Xing C, Hu Q, Tan W, Li Q, Ji X, Liu C.   +9 more
europepmc   +1 more source

A Two-Stage Transformer Framework for Sparse-Array Direction-of-Arrival Estimation via Correlation Vector Recovery. [PDF]

Sensors (Basel)
He W, Shi Y, Zhao H, Zhu H, Bao C.
europepmc   +1 more source