نتایج جستجو برای: controlled sc and instructor
تعداد نتایج: 16894386 فیلتر نتایج به سال:
An experiment was conducted to study the effects of plant density and cultivars on seed yield and yield components of corn (Zea mays L.) under the climatic conditions of Khorramabad at the Agriculture Research Station of Sarab Changaei. This experiment was a factorial on the basis of a randomized complete block design (RCBD) with four plant densities (6.5, 7.5, 8.5 and 9.5 plant/m2), three cor...
Scandium (Sc) is used in several modern industrial applications. Recently, significant Sc concentrations (~100 ppm) were reported some nickel-cobalt lateritic ores, where may be valuably co-produced. However, typically not included routine analyses of Ni-Co ores. This contribution examines the relevance using routinely analysed elements as geochemical proxies for estimating concentration and di...
The Kinect sensor gives computer eyes. It can capture 3D coordinates of human body joints. This provides a convenient way to track human body movement. This paper proposes an on-line physical training system using 3D sensors (Kinect) so that the exercise instructor and the athletes who are not in the same location can collaborate and fulfil training tasks remotely. The system captures the motio...
Providing an effective mechanism for an instructor to interact with one or more remote classrooms is a complex problem in synchronous distance learning. Although a human operator at the remote classroom could be used to direct a video camera and hence provide feedback to the instructor as to the state of the class and to coordinate the instructor’s attention to the class as questions are raised...
In this paper, a discount model is proposed to coordinate pricing and ordering decisions in a two-echelon supply chain (SC). Demand is stochastic and price sensitive while lead times are fixed. Decentralized decision making where downstream decides on selling price and order size is investigated. Then, joint pricing and ordering decisions are extracted where both members act as a single entity ...
boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...
Use of in-class concept questions with clickers can transform an instructor-centered "transmissionist" environment to a more learner-centered constructivist classroom. To compare the effectiveness of three different approaches using clickers, pairs of similar questions were used to monitor student understanding in majors' and nonmajors' genetics courses. After answering the first question indiv...
Cast and aged Al–0.1Zr and Al–0.1Zr–0.1Ti (at.%) alloys, upon compressive creep deformation at 300–400 C, exhibit threshold stresses attributable to climb-controlled bypass of coherent Al3Zr and Al3(Zr1 xTix) precipitates. Al–0.1Zr–0.1Ti exhibits a smaller threshold stress than Al–0.1Zr, which is attributed principally to a reduced lattice parameter mismatch between the Al3(Zr1 xTix) precipitat...
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