نتایج جستجو برای: rotational state

تعداد نتایج: 883857  

Journal: :journal of craniomaxillofacial research 0
faezeh atri prosthodontics department, dental school, dental research center, tehran university of medical sciences, tehran, iran susan mir-mohammad-rezaei prosthodontics department, dental school, dental research center, tehran university of medical sciences, tehran, iran farideh geramipanah prosthodontics department, dental school, dental research center, tehran university of medical sciences, tehran, iran mehran bahrami prosthodontics department, dental school, dental research center, tehran university of medical sciences, tehran, iran

a palatal defect may result from surgical resection, and its consequences could include difficulty in speech and nasal regurgitation of food and liquids. an obturator combined to speech aid prosthesis can improve nasal emission during speech,  and  assist  in  preventing  nasal  regurgitation  of  food.  this  article presents a clinical report of the reconstruction of palatopharyngeal function...

2011
Liwei Yuan Samuel W. Teitelbaum Allison Robinson Amy S. Mullin

Wehave constructed an optical centrifugewith a pulse energy that is more than 2 orders of magnitude larger than previously reported instruments. This high pulse energy enables us to create large enough number densities of molecules in extreme rotational states to perform high-resolution state-resolved transient IR absorption measurements. Here we report the first studies of energy transfer dyna...

Journal: :Physical chemistry chemical physics : PCCP 2005
Assimo Maris B Michela Giuliano Sonia Melandri Paolo Ottaviani Walther Caminati Laura B Favero Biagio Velino

The rotational spectrum of 1-benzofuran has been investigated by three different rotational spectroscopy techniques: (i) millimeterwave absorption free jet spectroscopy, useful for a fast assignment of the spectrum; (ii) molecular beam Fourier transform microwave spectroscopy, sensitive to detect less abundant isotopic species in natural abundance; (iii) waveguide conventional microwave spectro...

1988
JONATHAN TENNYSON BRIAN T. SUTCLIFFE S. Miller

Theory is developed for the calculation of dipole transition line strengths and frequencies for rotational and ro-vibrational transitions from wavefunctions expressed in the generalized body-fixed co-ordinates proposed by Sutcliffe and Tennyson (1986, Molec. Phys., 58, 1053). Computations using this theory produce calculated frequencies for the fundamental ro-vibrational transitions of H2 D+ an...

2017
P J Bruggeman

The gas temperature in non-equilibrium plasmas is often obtained from the plasma-induced emission by measuring the rotational temperature of a diatomic molecule in its excited state. This is motivated by both tradition and the availability of low budget spectrometers. However, non-thermal plasmas do not automatically guarantee that the rotational distribution in the monitored vibrational level ...

1998
A. Nummelin P. Bergman

We analyse the excitation of 114 rotational transitions of vinyl cyanide (acrylonitrile), C 2 H 3 CN, in its ν 11 and ν 15 vibrational states, together with 98 transitions in the ground state. The data were taken from the SEST line survey of Sgr B2(N) in the 1.3 mm band. For the lines with energies above 200 K a rotational temperature of 440

2013
Marcelo Samuel Berman Newton C. A. da Costa

We argue that the Robertson-Walker’s Universe is a zero-energy stable one, even though it may possess a rotational state besides expansion.

Journal: :Physical review 2022

The authors measure experimentally and calculate the state-to-state rate coefficients for rotational energy transfer of CO in collision with H${}_{2}$ at interstellar temperatures range 5--20 K. Good agreements were found between experiments performed cold supersonic flows close-coupling quantum scattering calculations collisions two most abundant molecules medium.

2000
Cheng-Liang Huang Shan-Shan Ju I-Chia Chen Anthony J. Merer

Laser-induced excitation spectra of the two bands ã B 1–X̃ A 1, 2 0 1 and 10 1 of SO2 and SO2 have been recorded in a supersonic jet at a resolution of 0.015 cm. The rotational and electron-spin fine structure has been analyzed for both isotopic species. Analysis of the rotational and electron-spin fine structure yields precise values of the rotational constants A, B, and C and the spin constant...

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