Abstract The form-factor for the stem surface area is directly proportional to square root of volume, i.e., law form-factor. Although addresses stems coniferous trees, nature coefficient has not been discussed. In this study, we demonstrated that indicates taper; therefore, it named “Taper Index based on Form-Factor (TIFF).” We also examined relationship between culm and apparent volume 570 cul...

Abstract
 Aim:
 To compare and evaluate the effect of glide path creation with Nitiflex hand K- file, Proglider Path file on canal transportation concentricity in apically curved canals.
 Objectives:
 degree between:
 1) Glide preparation hand-K vs followed by combination Hyflex EDM CM instrumentation
 2) 3) hand- K Materials methods:
 Forty ISO 20, 0.02 taper...

Simulation of phenomena like climate often deals with large datasets. A process to extract the most salient features is needed to assist in the understanding of the dataset. The Morse-Smale (MS) complex is a topological structure defined on scalar functions which extracts critical points of the function and the links between them. Furthermore, it encodes a hierarchy between critical points, and...

AIM To compare in vitro intracanal bacterial reduction using nickel-titanium rotary instruments with and without apical enlargement. METHODOLOGY Thirty-eight palatal roots of maxillary molar teeth, with mature apices were subdivided according to lengths and then randomly assigned to two experimental and one control groups. The roots were sterilized and then reinfected with Enterococcus faecal...

In this work, we develop a simulation method based on supermode theory and transfer matrix formalism, and then apply it to the analysis and design of taper couplers for vertically integrated As2S3 and Ti: LiNbO3 hybrid waveguides. Test structures based on taper couplers are fabricated and characterized. The experimental results confirm the validity of the modeling method, which in turn, is used...

A numerical study is presented of the influence of plate curvature and taper on the transport of ultrasound guided wave signals for nondestructive evaluation (NDE) and structural health monitoring (SHM) applications. Model formulations for transmission at sharp transitions in plate curvature and thickness taper are summarized. Results are presented showing that transitions in plate curvature an...

A well-made provisional fixed prosthesis must present as a preview of the future and may also augment health abutments periodontium. Provisional restorations have been prepared chairside with polymethyl methacrylate (PMMA) since time immemorial. CAD/CAM additive subtractive technologies revolutionized fabrication interim in dental clinics. The current literature lacks substantial data about ret...

THOMAS, C. E., and PARKESOL, B. R. 1991. Simple, flexible, trigonometric taper equations. Can. J. For. Res. 21: 1132-1137. There have been numerous approaches to modeling stem form in recent decades. The majority have concentrated on the simpler coniferous bole form and have become increasingly complex mathematical expressions. Use of trigonometric equations provides a s imple expression of tap...

We investigate the design of taper structures for coupling to slow-light modes of various photonic-crystal waveguides while taking into account parameter uncertainties inherent in practical fabrication. Our short-length (11 periods) robust tapers designed for ? = 1.55?m and a slow-light group velocity of c/34 have a total loss of < 20 dB even in the presence of nanometer-scale surface roughness...

Pyruvaldehyde bis(thiosemicarbazone) (PTS) was tested alone and in combination with dietary copper sulfate on 10 tumor systems. Potentiation of the cancerostatic activity of PTS by copper sulfate occurred in 8 of the tumor systems: Sarcoma 180, Taper liver tumor (solid and ascites), Carcinoma 1025, Sarcoma T241, Ridgway osteogenic sarcoma, Mecca lymphosarcoma, and Walker Rat Carcinosarcoma 256 ...