We present a method to prepare tungsten tips for use in multi-tip scanning tunneling microscopes. The motivation behind the development comes from a requirement to make very long and conical-shape tips with controlling the cone angle. The method is based on a combination of a “drop-off” method and dynamic electrochemical etching, in which the tip is continuously and slowly drawn up from the ele...

Cone penetration testing (CPT) is a cost effective and popular tool for geotechnical site characterization. CPT consists of pushing at constant rate an electronic penetrometer into penetrable soils recording cone bearing (qc), sleeve friction (fc) dynamic pore pressure (u) with depth. The measured qc, fs u values are utilized to estimate soil type associated properties. A method from measuremen...

During axonal pathfinding, the direction of nerve fiber extension is established by the growth cone, the motile structure at the distal tip of an elongating axon. It is the growth cone that navigates and directs axonal outgrowth by detecting and responding to complex molecular cues in the nervous system environment. Changes in growth cone behavior and morphology that result from contact with th...

Overconsolidated (OC) soils may develop a low or negative pore pressure during PCPT. Thus, it is challenging to an “on-the-fly” estimation of hydraulic conductivity from PCPT results. This study presents method estimate the OC results based on previously developed for normally consolidated (NC) soils. To apply existing method, in adjusted by using correction factor. An equation factor derived c...

Two new species of nematodes (Chabertiidae: Labiostrongylinea) from Dorcopsis muelleri in Raja Ampat Island, Papua, were described and figured. Dorcopsinema longispicularis sp.nov.is most similar to D. simile, but can be distinguished from it in being a smaller worm with longer spicules and a relatively longer oesophagus, as well as in the form of the posterior lip of the genital cone, the form...

Abstract This paper deals with the analysis of fluid flow around bluff bodies using computational dynamics. Two-dimensional rectangular body, semi-circular tip, triangular tip and elliptical nose cone shapes have been considered in paper. The are analysed at various Mach numbers, ranging from 1.5 to 10. aerodynamic characteristics like Drag coefficient drag force investigated. Also, formation s...

a 20-year-old man presented with the history of pain and swelling in the anterior maxillary segment. the periapical radiography was indicative of a dental anomaly in right maxillary lateral incisor. due to the insufficient information from conventional radiography, cone-beam computed tomography (cbct) was ordered. cbct showed apical root resorption, large apical lucency and two separate canals ...

The use of lectin cytochemistry together with proteolytic digestion techniques to partially characterize lectin binding sites of several intracellular compartments in frog photoreceptors was studied. Uniform access of reagents to all intracellular compartments was obtained by performing the experiments directly on semithin sections of retinal tissue embedded in a hydrophilic plastic resin. Prot...