Within muscular equivalents of cat lower esophageal sphincter (LES), the circular muscle develops greater spontaneous tone, whereas the sling muscle is more responsive to cholinergic stimulation. Smooth muscle contraction involves a combination of calcium release from stores and of calcium entry via several pathways. We hypothesized that there are differences in the sources of Ca(2+) used for c...

The circular hydraulic jump exhibits behavior quite different from that commonly observed in planar jumps. Here we examine experimentally some of the causes and consequences of those differences. We suggest that surface tension plays a dominant role in establishing the shape of the circular jump for impinging jets. The importance of surface tension is a direct result of the thinness of the liqu...

Half-circular channels, to be used for gas chromatography, were etched isotropically using a mixture of HF, HN09 and HzO. Two wafers with half-circular channels were bonded on top of each other to yield channels with a circular cross-section. During etching the so-called “loading effect” was encountered: the etch rate depends on the local structure density. To solve this, extra structures were ...

Small-conductance Ca2+-activated K+ (SK) channels are important participants in inhibitory neurotransmission in gastrointestinal smooth muscles. Three isoforms of an SK channel family were cloned from murine proximal colon smooth muscle. The transcripts encoding these subunits (SK1, SK2, and SK3) were detected in murine proximal colon and other peripheral tissues. The mRNA of each subunit was e...

In this paper the performance of the Vertical Bell Laboratories Space-Time (V-BLAST) detection that is used in spatial multiplexed MIMO system is investigated when fading correlation effects is included. Simulations of MIMO systems are developed employing accurate stochastic spatial channel model for both the uniform linear array (ULA) and uniform circular array (UCA) geometries. Systems applyi...

Typical Specifications (Dual Channel) Parameters / Model # SRF-24120910-D1 SRF-35121010-D1 SRF-77121210-D1 RF frequency 24.150 GHz 35.500 GHz 76.500 GHz Transmitter output power +10 dBm (typical) +10 dBm (typical) +10 dBm (typical) Receiver conversion loss 9 dB (typical) 10 dB (typical) 12 dB (typical) IF bandwidth DC to 100 MHz (minimum) DC to 100 MHz (minimum) DC to 100 MHz (minimum) I/Q Chan...

The implementation of a null-steering antenna array using dual polarised patch antennas is considered. Several optimality criterion for adjusting the array weights are discussed. The most effective criteria minimises the output power of the array subject to maintaining a right hand circular polarisation (RHCP) response on the reference antenna. An unconstrained form of this criteria is derived,...

During traditional acupuncture, fine needles are inserted subcutaneously and rotated, which causes loose fascial tissue to wind around the needle. This coupling is stronger at acupuncture points, which tend to fall above intermuscular fascial planes, than control points, which lay above skeletal muscle. These different anatomical constraints may affect the mechanical coupling. Fascia at acupunc...

Ro, Seungil, William J. Hatton, Sang Don Koh, and Burton Horowitz. Molecular properties of small-conductance Ca21-activated K channels expressed in murine colonic smooth muscle. Am J Physiol Gastrointest Liver Physiol 281: G964–G973, 2001.—Small-conductance Ca21-activated K (SK) channels are important participants in inhibitory neurotransmission in gastrointestinal smooth muscles. Three isoform...