Results 51 to 60 of about 706,018 (368)

USE OF GAMMA–GAMMA COINCIDENCE TECHNIQUE IN INVESTIGATING GAMMA – RAYS ATTENUATION AT DIFFERENT ENERGIES

Tikrit Journal of Pure Science, 2023
A gamma–gamma fast –slow coincidence spectrometer composed of two 3"×3"NaI(Tl) detectors  and peripheral electronics is used in investigating some effects on the photo peak  after the penetration of gamma –rays from lead.
Mahmoud A. Elawi, LaithA. Abbas, Sarwa A. M. Salih   +2 more
doaj   +1 more source

Maps on graphs can be deformed to be coincidence-free [PDF]

, 2010
We give a construction to remove coincidence points of continuous maps on graphs (1-complexes) by changing the maps by homotopies. When the codomain is not homeomorphic to the circle, we show that any pair of maps can be changed by homotopies to be ...
Staecker, P. Christopher
core   +2 more sources

Obstruction theory for coincidences of multiple maps

, 2017
Let $f_1,..., f_k:X\to N$ be maps from a complex $X$ to a compact manifold $N$, $k\ge 2$. In previous works \cite{BLM,MS}, a Lefschetz type theorem was established so that the non-vanishing of a Lefschetz type coincidence class $L(f_1,...,f_k)$ implies ...
Monis, Thais, Wong, Peter
core   +2 more sources

Coincidence analysis to search for inspiraling compact binaries using TAMA300 and LISM data [PDF]

, 2003
Japanese laser interferometric gravitational wave detectors, TAMA300 and LISM, performed a coincident observation during 2001. We perform a coincidence analysis to search for inspiraling compact binaries.
Akira Okutomi, Akira Yamamoto, Akiteru Takamori, Akito Araya, Akitoshi Ueda, B. Abbott, B. Abbott, B. Allen, C. Cutler, Colin T. Taylor, D. Nicholson, Daisuke Tatsumi, E. Amaldi, Fumihiko Usui, Gen’ichi Horikoshi, Gerhard Heinzel, H. Tagoshi, Hideki Asada, Hideki Ishitsuka, Hidetsugu Seki, Hideyuki Tagoshi, Hiromi Yakura, Hirotaka Takahashi, Hiroyuki Nakano, Kazuaki Kuroda, Kazuhiro Hayama, Kazuhiro Kondo, Kazuhiro Yamamoto, Kazuyuki Miura, Keita Kawabe, Ken-ichi Nakao, Ken-ichi Oohara, Ken-ichi Ueda, Kenji Numata, Kenji Soida, Kentaro Somiya, Ken’ichi Nakagawa, Kimio Tsubono, Kohei Takeno, Koichi Waseda, Koji Arai, Kuniharu Tochikubo, Kunihiko Kasahara, Kunihito Ioka, L. Blanchet, L. Blanchet, L. Blanchet, M. Ando, Mark A. Barton, Masa-Katsu Fujimoto, Masaki Ando, Masaru Shibata, Masatake Ohashi, Misao Sasaki, Mitsuhiro Fukushima, Mitsuru Musha, Namio Matsuda, Naoki Seto, Naoko Ohishi, Nobuaki Sato, Nobuhiro Tsuda, Nobuki Kawashima, Nobuyuki Kanda, Norihiko Kamikubota, Norikatsu Mio, Osamu Miyakawa, P. Astone, P. Astone, Peter Beyersdorf, Ryutaro Takahashi, S. Droz, S. Sato, S. Sato, S.J. Curran, Seiji Kawamura, Shigemi Otsuka, Shigenori Moriwaki, Shigeo Nagano, Shinji Miyoki, Shinsuke Taniguchi, Shoken Miyama, Shuichi Sato, Shuzo Takemoto, Souichi Telada, T. Tanaka, Takahiro Tanaka, Takakazu Shintomi, Takashi Nakamura, Takashi Uchiyama, Takayuki Tomaru, Tatsuo Yoda, Tomiyoshi Haruyama, Toru Tanji, Toshifumi Futamase, Toshikazu Suzuki, Toshitaka Yamazaki, Yasufumi Kojima, Yoji Totsuka, Yoshihide Kozai, Yoshiki Tsunesada, Yoshio Saito, Youich Aso, Yuhiko Nishi, Yujiro Ogawa, Yukiyoshi Iida, Yuko Watanabe, Zong-Hong Zhu   +106 more
core   +2 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Molecular Dynamics of XFEL-Induced Photo-Dissociation, Revealed by Ion-Ion Coincidence Measurements

Applied Sciences, 2017
X-ray free electron lasers (XFELs) providing ultrashort intense pulses of X-rays have proven to be excellent tools to investigate the dynamics of radiation-induced dissociation and charge redistribution in molecules and nanoparticles.
Edwin Kukk, Koji Motomura, Hironobu Fukuzawa, Kiyonobu Nagaya, Kiyoshi Ueda   +4 more
doaj   +1 more source

Appearance of Chance Coincidence in Attenuation Measurements Carried out by using Coincidence Technique

Tikrit Journal of Pure Science, 2022
The appearance of chance coincidence in attenuation measurements using coincidence technique is investigated. A two 3"*3" NaI(Tl) detector coincidence spectrometer with 0.5 μ Ci Na-22 source were used.
Mahmoud A. Elawi, Rasha W. Klaib, Khalid H. Mehdi   +2 more
doaj   +1 more source

Localized intersection of currents and the Lefschetz coincidence point theorem

, 2015
We introduce the notion of a Thom class of a current and define the localized intersection of currents. In particular we consider the situation where we have a smooth map of manifolds and study localized intersections of the source manifold and currents ...
Bisi, Cinzia, Bracci, Filippo, Izawa, Takeshi, Suwa, Tatsuo   +3 more
core   +1 more source

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Preliminary Analysis of a Novel Spaceborne Pseudo Tripe-Frequency Radar Observations on Cloud and Precipitation: EarthCARE CPR-GPM DPR Coincidence Dataset

Remote Sensing
By integrating EarthCARE W-band doppler cloud radar observations with GPM Ku/Ka-band dual-frequency precipitation radar data, this study constructs a novel global “pseudo tripe-frequency” radar coincidence dataset comprising 2886 coincidence events ...
Zhen Li, Shurui Ge, Xiong Hu, Weihua Ai, Jiajia Tang, Junqi Qiao, Shensen Hu, Xianbin Zhao, Haihan Wu   +8 more
doaj   +1 more source