In this work, the characterization of the assembly of a steel shaft into a γ-TiAl part for turbocharger application, obtained using Electron Beam Welding (EBW) technology with a Ni-based filler, was carried out. The Ti-48Al-2Nb-0.7Cr-0.3Si (at %) alloy part was produced by Electron Beam Melting (EBM). This additive manufacturing technology allows the production of a lightweight part with comple...

background: nickel-titanium (ni-ti) rotary instrument files are important devices in endodontics in root canal preparation. ni-ti file breakage is a critical and problematic issue and irrigation techniques were applied to decrease risk of file failure root. the aim of the present study was to compare the temperature gradient change of different irrigation solutions with ni-ti rotary instrument ...

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We present a Multi-State Time Del ay Neural Network (MS-TDNN) for speaker-i ndependent, connected l etter recogni ti on. Our MS-TDNNachi eves 98. 5/92.0% word accuracy on speaker dependent/i ndependent Engl i sh l etter tasks[7, 8]. In thi s paper we wi l l summari ze several techni ques to improve (a) conti nuous recogni ti on performance, such as sentence l evel trai ni ng, and (b) phoneti c ...

The output energy dependence of high repetition rate grazing incidence pumped Ni-like Mo, Ni-like Ag, and Ne-like Ti transient collisional soft x-ray lasers on the duration of the pump pulse was studied combining experiments and model simulations. Lasing is observed to occur for a wide range of pump pulse widths e.g., 2 to 18 ps for Ni-like Ag , with maximum output occurring for pump pulses of ...

The effect of microwave (MW) treatment to improve the adhesion of carbon nanotubes (CNTs) to a Ni/Ti/Au/SiO2/Si substrate was examined. CNTs were synthesized at a low temperature (400 C) by thermal chemical vapor deposition to avoid metal peeling. Results demonstrated that nearly 100% of MW-treated CNTs remained on the substrates even after sonication in a buffer solution. This was a significan...

In this study, the powders of Ni and Ti with 50.5 at.% Ni for 12 h were blended and cold pressed at the different pressures (50, 75 and100 MPa).The porous product obtained after Ni-Ti compacts were synthesized by SHS (self-propagating hightemperature synthesis) in the different preheating temperatures (200, 250 and 300oC) and heating rates (30, 60 and 90oC/min). The effects of the pressure, pre...

The aim of this stu dy was to de ter mi ne the nor mal va lu es for the Schir mer tear test (STT) in Tur kish Hun ting Dogs. This was per for med in or der to fa ci li ta te the di ag no sis of xer ophthal mia or ke ra to con junc ti vi tis sic ca (KCS), which is cha rac te ri zed by de fi cien cies in tear pro duc ti on and the re sul ting ab nor mal STT. Fif teen Tur kish Hun ting Dogs (8 fe ...

The nucleosynthesis and production of radioactive elements in SN 1987A are reviewed. Different methods for estimating the masses of Ni, Ni, and Ti are discussed, and we conclude that broad band photometry in combination with timedependent models for the light curve gives the most reliable estimates.