منابع مشابه
Session: 4B
ductance of layer. These dependencies showed that hybridization appears when sheet conductance of layer (σ) exceeds some critical value σcr), the magnitude of which changes in wide range and depends on material and plate orientation. For example, for aforementioned hybrid pair A0 SH0 in potassium niobate σcr = 10−3S. If σ < σcr modes are not coupled, i.e. their dispersion curves do not repulse....
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Two commercially important standards for 10Gb/s serial data transfer include the SFI specification, associated with SFP+ optical modules and copper twinaxial cable [1], and the 10GBASE-KR specification for backplane channels in computer servers and networking equipment [2]. The SFI specification requires the transmitter to operate with both low data-dependent jitter (DDJ) and low transmitter wa...
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Comparator-based switched-capacitor (CBSC) circuits were introduced in [1] as an alternative to opamp-based designs to overcome the limitations of opamps due to device and voltage scaling. Reduced device gain and signal swing make it increasingly difficult to design high-gain high-speed feedback loops with opamps. CBSC circuits replace the opamp with a comparator and a current source (see U1 an...
متن کامل(4bS,8aS)-1-Isopropyl-4b,8,8-trimethyl-4b,5,6,7,8,8a,9,10-octahydrophenanthren-2-yl acetate
The hemisynthesis of the title compound, C22H32O2, was carried out through direct acetyl-ation reaction of the naturally occurring diterpene totarol [systematic name: (4bS,8aS)-4b,8,8-trimethyl-1-propan-2-yl-5,6,7,8a,9,10-hexa-hydro-phen-an-thren-2-ol]. The mol-ecule is built up from three fused six membered rings, one saturated and two unsaturated. The central unsaturated ring has a half-chair...
متن کامل(4bS,8aS)-1-Isopropyl-4b,8,8-trimethyl-4b,5,6,7,8,8a,9,10-octahydrophenanthren-2-yl benzoate
The title compound, C27H34O2, was hemisynthesized through direct benzoyl-ation of the naturally occurring meroterpene totarol. The central fused six-membered ring has a half-chair conformation, whereas the terminal six-membered ring displays a chair conformation. The dihedral angle between the fused benzene ring and the benzoyl benzene ring is 73.05 (14)°. The S,S chirality of the mol-ecule is ...
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ژورنال
عنوان ژورنال: Plastic and Reconstructive Surgery - Global Open
سال: 2019
ISSN: 2169-7574
DOI: 10.1097/01.gox.0000583408.05779.ec