Lowest Overtone and Combination Levels of DCCI: The Fermi Resonance v3 = 1/v5 = 2.
The infrared spectrum of deuterated monoiodoacetylene DCCI in the region of 220-550 cm-1 has been studied at a resolution of 0.0020 cm-1. The hot bands nu3 <-- nu15 and 2nu0,25 <-- nu15 have been analyzed by considering especially the Fermi resonance v3 = 1/v5 = 2. In the next layer of the hot bands (nu3 + nu5)1 <-- nu3, (nu3 + nu5)1 <-- 2nu0,25 and 3nu1,35 <-- 2nu25 the same Fermi resonance appears between v3 = v5 = 1 and v5 = 3. In addition, various l resonances at the overtone levels have been considered. As a result, the vibrational and rotational constants for the level systems v3 = 1/v5 = 2 and v3 = v5 = 1/v5 = 3 together with the resonance parameters have been obtained. Copyright 1999 Academic Press.
Vibration-Rotation Interactions in Bending and CBr Stretching Fundamental Band Systems ν3, ν4, and ν5 of Monobromoacetylene
Abstract High-resolution vibration-rotation spectra of a sample of natural monobromoacetylene (HCCBr) have been recorded with the Bruker IFS 120 Fourier spectrometer in the region of the bending and CBr stretching fundamentals. Altogether 23 bands belonging to HCC79Br and 23 bands belonging to HCC81Br isotopic species have been analyzed rotationally, yielding accurate vibrational term values and rotational constants. Coriolis-, rotational l-, and Fermi-resonance interactions have been observed and analyzed in some of the bands.
Design of a Ceiling Glass Installation Robot
Building materials and components are much larger and heavier than many industrial materials. Ceiling glass is a type of building material for interior finishing. The demand for larger ceiling glass has increased along with the number of high-rise buildings and an increased interest in interior design. The objective of the study is to introduce robotic technology for installing ceiling glass on construction site. Robotically installed ceiling glass is receiving special attention because of the difficulties in moving to high installation positions and handling fragile building materials. Below, we describe the design of a ceiling glass installation robot. After analyzing a target project, we establish a design concept for a proposed robot. Finally, we describe the detailed design of the robot.