نتایج جستجو برای: alpha progeny meter

تعداد نتایج: 240870  

2007
Silvan J. Bianco D. Nikezic K. N. Yu

Approximately half of the human exposure to radiation is due to indoor airborne shortlived progeny (decay products) of the radon gas (Rn). To measure the airborne concentrations of radon gas and/or its progeny, Nuclear Track Detectors (NTDs) are usually employed. The NTDs register the alpha particles emitted by radon gas and its progeny in the form of tracks in the NTDs, which will become visib...

2013
S. CHAŁUPNIK O. MEISENBERG L. BI J. WANG K. SKUBACZ

Liquid Scintillation Counting (LSC) is a measuring technique, broadly applied in environmental monitoring of different radionuclides. One of the possible applications of LSC is the measurement of radon and thoron progeny. There are certain advantages of this method, especially high counting efficiency for alpha and beta particles emitted by radon and thoron progeny. This advantage has been poin...

2010
C Zhao W Zhuo B Chen Zhang F Tang Chen T Kuo C Su C Chang C Lin W Cheng H Liang C Lewis Ch

The HMGU thoron experimental house: a new tool for exposure assessment Doses in human organs due to alpha, beta and gamma radiations emitted by thoron progeny in the lung A theoretical study on accurate measurements of thoron with airflow-through scintillation cell method RADIATION PROTECTION DOSIMETRY OCT 2010 141 4 Sp. Iss. SI 448 451 Ishimori, Y Time-integrated monitoring of thoron progeny c...

Journal: :Journal of environmental radioactivity 2001
K N Yu B M Lau Z J Guan T Y Lo E C Young

The bronchial dosimeter for Rn progeny proposed by Yu and Guan in 1998 was employed to survey the bronchial dose from Rn progeny in 30 residences in Hong Kong. An average bronchial deposition fraction of Rn progeny was obtained as 0.0334, which gave an average dose conversion factor (DCF) of 8.5 mSv WLM-1. The mean values of potential alpha energy concentration (PAEC) deposited in the tracheobr...

Journal: :Cytokine 1998
L Köhidai G Csaba

Three representative cytokines interleukin (IL-8), RANTES and tumour necrosis factor alpha (TNF-alpha) have a concentration-dependent chemotactic effect on the unicellular Tetrahymena. Maximal effective concentrations of IL-8 (1 ng/ml) and RANTES (75 ng/ml) are in the same range as in mammals, which indicates an evolutionary background of physiological effects elicited. Progeny generations of c...

2010
Jie Chen Michael V. Dodson Zhihua Jiang

In the present study, mature adipocytes from pig-derived visceral and intramuscular adipose depots were isolated, purified, and allowed to undergo dedifferentiation and redifferentiation in vitro. During the redifferentiation process at days 1, 2, 4, 6, and 8, we observed that both visceral- and intramuscular adipose-derived progeny cells possessed a similar capacity to accumulate lipid. Howeve...

Journal: :Journal of the Society of Powder Technology, Japan 1992

Journal: :The Cardinal edge 2021

Prenylation is a type of post-translational modification in which 15- or 20-carbon lipid added to the carboxyl (C) terminus protein. Arabidopsis thaliana contains PROTEIN PRENYLTRANSFERASE ALPHA SUBUNIT-LIKE (PPAL) gene, encodes protein with homology ?-subunits three known prenylation enzymes, PFT, PGGT, and Rab-GGT. We previously identified two mutations PPAL, one ppal-1, T-DNA insertion fourt...

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