Amethodwhichenables the investigationof theburied interfaceswithoutaltering the properties of the polymer films is used to study vertical phase separation of spin-coated poly(3-hexylthiophene) (P3HT):fullerene derivative blends. X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM) analysis reveals the P3HT enrichment at the free (air) surfaces and abundanceof fullerene deriv...

Breast reduction using an inverted T scar skin design and a variety of glandular pedicle types is widely practiced and is the standard by which more recent limited scar techniques are judged. The inverted T procedures are attractive because they are predictable and versatile and permit great control over both the extent of reduction and the breast-shaping process. Despite these advantages, comm...

The presence of gas hydrate and associated gas in the Makran Accretionary Prism, offshore Iran, has been confirmed by various seismic indicators, including the bottom-simulating reflector (BSR), amplitude blanking, and bright spot. The pre-stack analysis and the study of amplitude-variation-with-offset (AVO) attributes are the most reliable tools for semi-quantitative study of gas hydrate and f...

An analytical technique is proposed for estimation of the radiation pattern of inverted-F antenna (IFA) which is mounted on the side wall of a long cylinder. The method can be applied to describe the IFA radiation in a lot of practical cases. It is indicated that this radiation pattern is a combination of radiation patterns of a horizontal and a vertical small radiator, near the cylinder with a...

Configuration and geometry of bracing systems affect the seismic performance of structures significantly. Recently, the current authors have introduced a new configuration for eccentric bracing of structural frames that may be assumed as the combination of inverted Y-type and rotated K-type EBFs. The resulted braced frame is called EBF-DVL, consisting of two vertical links attached together by ...

A Vertical Take-Off and Landing-Plane (VTOL-Plane) is an Unmanned Aerial Vehicle (UAV) that combines multirotor fixed-wing configurations. It has a good cruise range compared to VTOL vehicle. Furthermore, it can take-off land vertically. This technology ideal for surveillance/monitoring missions transmitting data in real-time. study discusses the design of VTOL-Plane with preset Design Requirem...

In this paper, three controllers, including OFCHA (optimal fuzzy control using hedge algebras – HAs), FCHA (fuzzy control using HAs) and CFC (conventional fuzzy control) are designed. Attention is paid to the stability in the vertical position of a damped-elastic-jointed inverted pendulum subjected to a time-periodic follower force. The different values of the angular coefficient of the followe...

Atlantooccipital fusion is complete or partial congenital fusion of the atlas to the base of occiput. Basilar impression may complicate the clinical picture with the reduction of the vertical height of atlas causing odontoid or other bony structures project into foramen magnum and medulla oblongata. This results in narrowing of the foramen magnum and leads to neural compression. Authors present...