This article reviews the popular reasons for the belief that dwarf elliptical galaxies and (ordinary) elliptical galaxies are distinct and separate species. They include: light–profile shape (or similarly image concentration); the magnitude–central surface brightness diagram; the magnitude–effective surface brightness diagram (or similarly the magnitude–effective radius diagram); and the Fundam...

Romulea jezzinis K. Addam & M. Bou-Hamdan sp. nov from Kfar Houneh and Aaramta (Jezzine District) libanotica Jabal Niha Tawmat (Al Shouf are nominated as novel species. Not only do the new two species vary other existing in terms of taxonomic structures such (corm, tunic, leaves, shape perianth, segment flower, flower tube, style, filaments, anthers, seeds, color pollen others), but they al...

This letter presents a miniaturized probe-fed elliptical microstrip patch antenna (PF-EMPA) targeting the 8.50-10.55 GHz band for radiolocation applications. The proposed design is composed of an elliptical patch inserted into an elliptical slot. In order to achieve our goals and control the impedance matching, we adjusted the offset distance from the elliptical patch to the side of the ellipti...

The new APPLE X undulators are novel elliptically-polarised undulators, which have a highly symmetric geometry. Theoretically, all the elliptical polarisation states expected to same deflection parameter if magnetic and geometrical errors negligible. Nonetheless, measurements of first ten performed at Paul Scherrer Institut (PSI) contradicted this simple statement numerical simulations were req...

Abstract In this article, a compact microstrip lowpass filter (LPF) using elliptical shaped resonators with ultra-wide stopband is rendered. respect, LC equal structures of the are calculated based on formula circumference. addition, to calculate transmission zeros presented resonator, structure and its output input ratio employed. The proposed LPF has −3 dB cut-off frequency at 1.50 GHz bandwi...

Aiming at the fabrication of a micro-textured surface, novel piezoelectric-driven non-resonant elliptical vibrator is proposed in this paper; output characteristics could be adjusted by length change tool holder. The flexible mechanism primary structure vibrator, which includes lever type mechanism, an enhanced Scott–Russell and T-shaped mechanism. former two mechanisms are used to enlarge piez...

Abstract— The paper presents the design and performance measures of a printed stepped patch monopole antenna with semi-elliptical ground plane and band notch for ultra wideband applications. The proposed antenna operates in the frequency range 3.15 ~ 12.2 GHz with average gain of 4.27 dBi. Inverted U shaped slot is introduced in the feed line for WLAN band rejection and the rejection band range...

This article reports the microstructural characteristics of various petroleum and pitch based nuclear graphites (IG-110, NBG-18, and PCEA) that are of interest to the next generation nuclear plant program. Bright-field transmission electron microscopy imaging was used to identify and understand the different features constituting the microstructure of nuclear graphite such as the filler particl...

The cytoarchitecture of the rat cerebellar cortex was studied by scanning electron microscopy (SEM) after exposure of cell surfaces by NaOH maceration and subsequent mild mechanical dissection. SEM observation clearly differentiated the three layers of the cerebellar cortex: the molecular layer, which consisted of a dense accumulation of thin nerve fibers; the Purkinje cell layer, in which larg...

The partial skeleton of a leptoceratopsid dinosaur, Ischioceratops zhuchengensis gen. et sp. nov., was excavated from the bone-beds of the Upper Cretaceous Wangshi Group of Zhucheng, Shandong Province, China. This fossil represents the second leptoceratopsid dinosaur specimen recovered from the Kugou locality, a highly productive site in Zhucheng. The ischium of the new taxon is morphologically...