q-Bernstein polynomials and Bézier curves

AbstractWe define q-Bernstein polynomials, which generalize the classical Bernstein polynomials, and show that the difference of two consecutive q-Bernstein polynomials of a function f can be expressed in terms of second-order divided differences of f. It is also shown that the approximation to a convex function by its q-Bernstein polynomials is one sided.A parametric curve is represented using a generalized Bernstein basis and the concept of total positivity is applied to investigate the shape properties of the curve. We study the nature of degree elevation and degree reduction for this basis and show that degree elevation is variation diminishing, as for the classical Bernstein basis

Uji Adaptasi Teknologi Budidaya Bawang Merah di Kabupaten Enrekang Sulawesi Selatan

Application of Shallot Cultivation Technology in Enrekang, South Sulawesi. Shallot is one of the important vegetable crops in South Sulawesi, but the level of productivity is still low at 6 t / ha. This is caused partly by the lack of specific location technology. The purpose of the assessment is to to get a package of shallot cultivation technology appropriate and in accordance with local conditions. Assessments conducted at Tominawa Village, Baraka Sub-district, Enrekang District from March to December 2008, using a paired plot design, with two treatments: (1) The application of cultivation technology and (2) Cultivation of farmer ways. The assessment indicated that the application of cultivation technology as recommended giving shallot growth better than the way farmers plant growth. In this treatment of tuber fresh weight per 10 groves of shallots, tubers and higher tuber diameter of each 937 g, 3.86 cm and 4.20 cm. Furthermore, the number of tubers per hill and tuber dry weight per 10 clusters each tuber and 810 g. 7.28 While the yield obtained on the recommendation technology is 2772 kg/ha, equivalent 0.35 7.92 t/ha. Acceptance of farmers on the application of technology recommended treatment is USD. 30,492,000 as of 0.35 ha with RC ratio of 2.45

Non-Destructive Evaluation of Iowa Pavements Phase 2: Development of a Fully Automated Software System for Rapid Analysis/Processing of the Falling Weight Deflectometer Data

The Office of Special Investigations at Iowa Department of Transportation (DOT) collects FWD data on regular basis to evaluate pavement structural conditions. The primary objective of this study was to develop a fully-automated software system for rapid processing of the FWD data along with a user manual. The software system automatically reads the FWD raw data collected by the JILS-20 type FWD machine that Iowa DOT owns, processes and analyzes the collected data with the rapid prediction algorithms developed during the phase I study. This system smoothly integrates the FWD data analysis algorithms and the computer program being used to collect the pavement deflection data. This system can be used to assess pavement condition, estimate remaining pavement life, and eventually help assess pavement rehabilitation strategies by the Iowa DOT pavement management team. This report describes the developed software in detail and can also be used as a user-manual for conducting simulation studies and detailed analyses

Pengaruh Iklan Dan Harga Terhadap Keputusan Pembelian Handphone Merek Xiomi Pada Ivan Cell Malang (Studi Kasus Pada Konsumen Ivan Cell Malang)

ABSTRACTThis study aims to determine the effect of advertising and price on purchasing decisions at Ivan Cell Malang. The sample in this study amounted to 80 respondents.The method used is descriptive data analysis by using the validity, reliability, normality test, multicollinearity test, heterocesdasticity test, multiple linear analysis test, determination coefficient test, f test, and t hypothesis test.The results of descriptive analysis in this study indicate that each variable has an effect on purchasing decisions, namely advertising, price has a positive effect on purchasing decisions. Advertising variables have a significant effect on purchasing decisions at Ivan Cell Malang Stores. Price variables have a significant effect on purchasing decisions at Ivan Cell Malang Stores. Advertising and price simultaneously influence purchasing decisions at Ivan Cell Malang Stores.Keywords: Advertising and Price Against Purchasing Decisions

Study of Dissimilar Welding AA6061 Aluminium Alloy and AZ31B Magnesium Alloy with ER5356 Filler Using Friction Stir Welding

This paper is to study of dissimilar welding AA6061 aluminium alloy and AZ31B magnesium alloy with ER5356 filler using friction stir welding. 2 mm thick plates of aluminium and magnesium were used. Friction stir welding operations were performed at different rotation and travel speeds and used the fixed tilt angle which is 3°. The rotation speeds varied from 800 to 1100 rpm, and the travel speed varied from 80 to 100 mm/min. In the range rotation speed of 800 to 1000 rpm and welding speed of 80 to 100 mm/min there are no defect at the weld. Tensile test show the higher tensile strength is 198 MPa and the welding efficiency is about 76%