For the first time, a millimeter-wave dual-polarized dielectric resonator (DR) reflectarray fabricated by three-dimensional (3D) printing with high relative permittivity materials is presented. The unit cell of composed two elliptical DRs orthogonally placed in center. A base layer slab at bottom for fixture and connection its adjacent elements. each polarization, only length long axis one DR v...

Background: Diagnosis and management of pre-rupture stage of the pregnant horn are difficult and usually missed on a routine ultrasound scan. Furthermore, most cases are detected after rupture of pregnant horn. Case: We presented a 28-year-oldG2 L1 woman with diagnosis of RHP at 14 weeks of gestation. She was initially diagnosed with a normal intrauterine pregnancy, whereas a pregnancy in a rig...

We introduce a Horn description logic called Horn-DL, which is strictly and essentially richer than Horn-Reg , Horn-SHIQ and Horn-SROIQ, while still has PTime data complexity. In comparison with Horn-SROIQ, Horn-DL additionally allows the universal role and assertions of the form irreflexive(s), ¬s(a, b), a 6 . = b. More importantly, in contrast to all the well-known Horn fragments EL, DL-Lite,...

Horn-to-Horn belief revision asks for the revision of a Horn knowledge base such that the revised knowledge base is also Horn. Horn knowledge bases are important whenever one is concerned with efficiency—of computing inferences, of knowledge acquisition, etc. Horn-to-Horn belief revision could be of interest, in particular, as a component of any efficient system requiring large commonsense know...

A new horn with high displacement amplification for ultrasonic welding is developed. The profile of the horn is a nonrational B-spline curve with an open uniform knot vector. The ultrasonic actuation of the horn exploits the first longitudinal displacement mode of the horn. The horn is designed by an optimization scheme and finite element analyses. Performances of the proposed horn have been ev...

Effective radio frequency interference (RFI) cancellation for spectroscopic applications can take place using time averaged spectra. An RFI “reference signal,” constructed from the cross power spectrum of the signals from the two polarizations of a reference horn pointed at the source of the RFI signal, in combination with cross power spectra with the signals from the Parkes telescope, allows c...

Abortion in an attached rndimentary uterine horn, followed by a normal intrauterine pregnancy.  Pregnancy in an rudimentary uterus has been occured in many forms, and up to now about 350 cases have been reported in medical journals. Most of these malforma­tions accompanied with other malformations in urinary tract.  A case of pregnancy and abortion in an attached rudi­mentary uterine horn is ...

We present the first, complete 230 GHz feedhorn array manufactured by direct drilling of smooth–walled horns into a single plate of aluminium. The horn design process, based on a genetic algorithm, is described and the fabrication process, via direct drilling using shaped drill bits, is presented. We present cross coupling and beam pattern measurements of a close–packed pair of the smooth–walle...

Resting cyst and motile thecate cell stages of three heterotrophic Protoperidinium oblongum, Protoperidinium sp < b> and Protoperidinium claudicans were assessed. Cysts were isolated from sediment collected from southeast coast of Iran. Individual live cysts were incubated under optimal conditions for germination. Results showed that Protoperidinium oblongum cysts were pentagonal smooth walled ...

Modern far infrared and submillimeter instruments require large format arrays. We consider the relative performance of filled array (bare pixel) and feedhorn-coupled architectures for bolometer focal planes. Based on typical array parameters, we quantify the relative observing speeds and comment on the merits of the different architectures. Filled arrays can provide higher mapping speed (by a f...