نتایج جستجو برای: h20

تعداد نتایج: 1006  

2011
Stacie Beck Alexis Chaves

Few macroeconomic studies exist on the effects of taxes on international trade. Our hypothesis is that higher tax rates raise a country’s production costs, leading to a decrease in exports in the long run. With panel data for 25 OECD countries, we use average effective tax rates on consumption, labor income and capital income to examine their impact on bilateral trade. We find that that all thr...

1994
JANICE L. BISHOP JOHN O. EDWARDS

-Interlayer cations and moisture content greatly influence the molecular vibrations of H20 in montmoriUonite as shown through reflectance spectroscopy in the infrared. The absorptions due to H~O have been studied in montmorillonites exchanged with H, Na, Ca, Mg and Fe 3+ interlayer cations under variable moisture environments. Band assignments have been made for absorptions in the 3 ~tm region ...

Journal: :Teknik bilimler dergisi 2023

Bu çalışmada kombine güç üretim sistemlerinde, termal ısı iletkenliği yüksek olan cıva, çalışma akışkanı olarak seçilmiş ve alt çevrimde H2O buharı R113 gibi iki ayrı çevrim kullanılarak cıvalı combine sistemi tasarlanmıştır. Kurulan sistemde değiştiricilerinde geçişleri eşit, pompa, kompresör türbinler izentropik değerlendirilmiştir. Hesaplamalar EES (Engineering Equation Solver) programı ile ...

Journal: :The Review of Corporate Finance Studies 2021

Abstract We measure U.S. listed companies’ skilled labor risk—that is, the potential failure in attracting and retaining labor, by intensity of discussions on this issue 10-K filings. show that effectively captures firm risk due to mobility labor. find an increase from 25th 75th percentile would wage 22% (or $15,593) also lead higher equity-based incentive pay. The interacts with other corporat...

2016
Vera Lúcia dos Santos Alves Osmar Avanzi

OBJECTIVE To analyze the impact of a physiotherapy protocol in maximum inspiratory and expiratory pressure in patients with adolescent idiopathic scoliosis (AIS) by manovacuometry. AIS may change the respiratory dynamics and the performance of inspiratory and expiratory muscles, affecting ventilatory capacity. METHODS Patients with AIS aged 10 to 20 years old were randomly assigned to receive...

2017
W. Drachsel C. Wesseling V. Gorodetskii

Using the field ion microscope as a flow reactor the catalytic oxidation of hydrogen by O2 on Pt has been studied by the ToF coincidence technique. The "imaging ions" consist mainly of H30+. less H20+ and to some extent field and coverage sensitive 02+ species. The product ion spectrum qualitatively coincides with that of pure water field desorbed at 300 K. On the oxygen side of the H2/02/Pt sy...

2002
Donald B. Dingwell Christopher M. Scarfe

The volatilization of fluorine from three melts in the system N a 2 0 A 1 2 0 3 S i O 2 has been investigated at 1 atm pressure and 1200-1400°C. The melts chosen have base compositions corresponding to albite, jadeite and a peraluminous melt with 75 mole % SiO 2. Melt spheres were suspended from platinum loops in a vertical tube furnace in a flow of oxygen gas, then quenched, sectioned and anal...

Journal: :Scientific American 1965
E I RABINOWITCH GOVINDJEE

X y effort to understand the basis of life on this planet must always come back to photosynthesis: the process that enables plants to grow by utilizing carbon dioxide (C02), water (H20) and a tiny amount of minerals, Photosynthesis is the one large-scale process that converts simple, stable, in­ organic compounds into the energy-rich combination of organic matter and oxy­ gen and thereby makes ...

2013
Keizo Horiuchi

The 35C1 NQR spin-lattice relaxation mechanism in isomorphous N i(H 20 ) 6SnCl6 and M g(H20 ) 6SnCl6 crystals is reported. The spin-lattice relaxation time T1(j in the Ni compound is determined mainly by a paramagnetic relaxation. However, above ca. 400 K T1Q decreased rapidly and a log vs. T 1 curve was almost linear. This steep decrease of T1Q was explained by reorientational motions of the a...

2007
Fraser P. Fanale Ronald Greeley Robert Pappalardo Amanda Hendrix Jeffrey Moore

Observational data from the Galileo Orbiter's remote-sensing instruments, including solid-state imaging (SSI), the Near-Infrared Mapping Spectrometer (NIMS), and the ultraviolet spectrometer (UVS), are analyzed and interpreted in terms of the history of the Tyre and Pwyll impact sites and the nature of Europa's crustal zonal structure. Material characterized by asymmetric 1.4 and 2.0/xm bands a...

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