نتایج جستجو برای: helium bag

تعداد نتایج: 29974  

Journal: :Cancer research 2003
Paul A Townsend Ramsey I Cutress Adam Sharp Matthew Brimmell Graham Packham

BAG-1 is a multifunctional protein that interacts with a wide range of cellular targets. There is accumulating evidence that overexpression of BAG-1 may play an important role in breast cancer; however, the functional consequences of BAG-1 expression and its mechanism of action in breast cancer cells have not been studied in detail. Here we demonstrate that BAG-1 overexpression completely prote...

Journal: :تحقیقات مهندسی کشاورزی 0
مجید قرآن خوان کارشناس ارشد سازمان جهاد کشاورزی استان هرمزگان ایران محمدپور عضوهیات علمی بخش تحقیقات فنی و مهندسی کشاورزی مرکز تحقیقات کشاورزی و منابع طبیعی استان هرمزگان مهدی مدندوست عضو هیات علمی دانشگاه آزاد اسلامی جهرم محمود دژم عضو هیات علمی دانشگاه آزاد اسلامی جهرم

bananas are climacteric fruits and controlling ripening is effective in reducing loss. this experiment studied the effect of packaging (plastic bag, edible wax and plastic bag, plastic bag and 2 or 4 g/kg potassium permanganate) over 5 weeks of cold storage on the quality and characteristics of cavendish cultivar bananas. the samples were removed from storage at 8, 16, 24, 32 and 40 days and fr...

Journal: :Physical chemistry chemical physics : PCCP 2015
Frédéric Aitken Nelly Bonifaci Luis Guillermo Mendoza-Luna Klaus von Haeften

Positively charged helium clusters, also called 'snowballs', have been investigated within normal liquid helium. Thermodynamic state equations for ionic helium clusters in liquid helium have been developed, allowing us to discern the 'hydrodynamic' radius for a wide range of hydrostatic pressures and temperatures. The mobilities derived from the cluster sizes using stokes law match experimental...

2013
Maryam Momeni

The bag radius of the nucleon can be determined by MIT bag model based on electric and magnetic form factors of the nucleon. Also we determined the masses and magnetic moment of the nucleon with MIT bag model, using bag radius and compared with other results, suggests a suitable compatibility. Keywords—MIT bag model, masses and magnetic moment of the nucleon, bag radius of the nucleon.

1997
Allen V. Sweigart

The observed abundance variations in globular cluster red giants indicate that these stars may be mixing helium from the hydrogen shell outward into the envelope, presumably as a result of internal rotation. We have investigated the implications of such helium mixing for both the red-giant-branch (RGB) and horizontal-branch (HB) phases by computing a number of noncanonical evolutionary sequence...

Journal: :The European physical journal. E, Soft matter 2009
P E Wolf F Bonnet L Guyon T Lambert S Perraud L Puech B Rousset P Thibault

We have investigated the formation of helium droplets in two physical situations. In the first one, droplets are atomised from superfluid or normal liquid by a fast helium vapour flow. In the second, droplets of normal liquid are formed inside porous glasses during the process of helium condensation. The context, aims, and results of these experiments are reviewed, with focus on the specificity...

Journal: :Respiratory medicine 2011
Omar Hussain Eileen G Collins Nalan Adiguzel W Edwin Langbein Martin J Tobin Franco Laghi

Helium-oxygen mixtures and pressure-support ventilation have been used to unload the respiratory muscles and increase exercise tolerance in COPD. Considering the different characteristics of these techniques, we hypothesized that helium-oxygen would be more effective in reducing exercise-induced dynamic hyperinflation than pressure-support. We also hypothesized that patients would experience gr...

2016
Jie Gao Liangman Bao Hefei Huang Yan Li Jianrong Zeng Zhe Liu Renduo Liu Liqun Shi

This work reports on the evolution law of helium bubbles in Hastelloy N alloy on post-irradiation annealing conditions. After helium ion irradiation at room temperature and subsequent annealing at 600 °C (1 h), the transmission electron microscopy (TEM) micrograph indicates the presence of helium bubbles with size of 2 nm in the depth range of 0-300 nm. As for the sample further annealed at 850...

2010
Veeramani Chidambaranathan Raymond J. Spiteri

This paper presents results pertaining to the numerical modeling of the cryogenic system at the Canadian Light Source. The cryogenic system consists of the cryostat that houses a Radio Frequency (RF) Cavity used for boosting energy of an electron beam. For consistent operation of the RF Cavity, it must be kept immersed in liquid helium at a constant level with the pressure in the gas space main...

Journal: :Physical review letters 2013
Nils B Brauer Szymon Smolarek Evgeniy Loginov David Mateo Alberto Hernando Marti Pi Manuel Barranco Wybren J Buma Marcel Drabbels

The best-known property of superfluid helium is the vanishing viscosity that objects experience while moving through the liquid with speeds below the so-called critical Landau velocity. This critical velocity is generally considered a macroscopic property as it is related to the collective excitations of the helium atoms in the liquid. In the present work we determine to what extent this concep...

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