Results 21 to 30 of about 695 (68)

Quantitative Evaluation of the Adaptability of the Shield Machine Based on the Analytic Hierarchy Process (AHP) and Fuzzy Analytic Hierarchy Process (FAHP)

open access: yesAdvances in Civil Engineering, Volume 2022, Issue 1, 2022., 2022
Tunnel engineering based on the shield method is an extremely complex project. During the construction process, many uncertain factors are often faced, which makes it difficult to effectively and quantitatively evaluate the effectiveness of the shield machine.
Jiangsheng Xie   +7 more
wiley   +1 more source

Search for TeV $\gamma$ -rays from H1426+428 during 2004-07 with the TACTIC telescope [PDF]

open access: yes, 2009
The BL Lac object H1426+428 ($z\equiv 0.129$) is an established source of TeV $\gamma$-rays and detections of these photons from this object also have important implications for estimating the Extragalactic Background Light (EBL) in addition to the ...
Bhatt, N.   +17 more
core   +3 more sources

Tagging single muons and other long-flying relativistic charged particles by ultra-fast timing in air Cherenkov telescopes [PDF]

open access: yes, 2006
Atmospheric air Cherenkov telescopes are successfully used for ground-based, very high-energy (VHE) gamma ray astronomy. Triggers from the so-called single muon and other long-flying relativistic charged particle events are an unwanted background for the
Bartko   +8 more
core   +2 more sources

A Search for Dark Matter Annihilation with the Whipple 10m Telescope [PDF]

open access: yes, 2008
We present observations of the dwarf galaxies Draco and Ursa Minor, the local group galaxies M32 and M33, and the globular cluster M15 conducted with the Whipple 10m gamma-ray telescope to search for the gamma-ray signature of self-annihilating weakly ...
A. Konopelko   +38 more
core   +3 more sources

Detection of TeV gamma rays from the AGN Markarian 421 [PDF]

open access: yes, 1993
We present here the detection of TeV gamma rays from the extragalactic source Markarian 421. Observations obtained with the Whipple 10 m imaging Cherenkov telescope in March–June 1992 give a gamma ray signal with statistical significance of 6.3σ above ...
Akerlof, Carl W.   +23 more
core   +1 more source

Observations of TeV gamma-rays from Mrk 421 during Dec. 2005 to Apr. 2006 with the TACTIC telescope

open access: yes, 2007
The TACTIC $\gamma$-ray telescope has observed Mrk 421 on 66 clear nights from Dec. 07, 2005 to Apr. 30, 2006, totalling $\sim$ 202 hours of on-source observations.
A.K. Tickoo   +48 more
core   +1 more source

Multiwavelength Observations of a Flare from Markarian 501 [PDF]

open access: yes, 1997
We present multiwavelength observations of the BL Lacertae object Markarian 501 (Mrk 501) in 1997 between April 8 and April 19. Evidence of correlated variability is seen in very high energy (VHE, E > 350 GeV) gamma-ray observations taken with the ...
A. C. Breslin   +34 more
core   +2 more sources

Very High Energy gamma-ray observations of Mrk 501 using TACTIC imaging gamma-ray telescope during 2005-06

open access: yes, 2008
In this paper we report on the Markarian 501 results obtained during our TeV $\gamma$-ray observations from March 11 to May 12, 2005 and February 28 to May 7, 2006 for 112.5 hours with the TACTIC $\gamma$-ray telescope.
  +24 more
core   +1 more source

Endoscopic Assisted En‐Bloc Resection of Thenar Vascular Leiomyoma

open access: yesArthroscopy Techniques, Volume 14, Issue 10, October 2025.
Abstract A range of neoplastic, inflammatory, traumatic, and degenerative pathologies may present with a mass in the thenar eminence. Vascular leiomyomas are infrequent benign soft‐tissue neoplasms originating from the tunica media layer of venous wall vascular walls.
Ka Yuk Fan, Tun Hing Lui
wiley   +1 more source

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