The Experts below are selected from a list of 65718 Experts worldwide ranked by ideXlab platform
รศ ดร มนตร แยมกสกร - One of the best experts on this subject based on the ideXlab platform.
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เกณฑประสทธภาพในงานวจยและพฒนาสอการสอน ความแตกตาง 90 90 standard และ e1 e2 how to use Efficiency criterion in media research and development the difference between 90 90 standard and e1 e2
Journal of Education, 2014Co-Authors: รศ ดร มนตร แยมกสกรAbstract:การหาคาประสทธภาพสอการสอนทมหลกการและแนวคดสนบสนน ม 2 วธ คอ (1)เกณฑมาตรฐาน 90/90 (The 90/90 Standard)ตามแนวคดของรองศาสตราจารย ดร.เปรอง กมท และ E1/E2 ตามแนวคดของศาสตราจารย ดร.ชยยงค พรหมวงศ เกณฑมาตรฐาน 90/90 เปน วธการทมหลกการเรยนแบบรอบร (Mastery learning) เปนหลกการสำคญ สวนการหา ประสทธภาพ E1/E 2 มหลกการการประเมน พฤตกรรมอยางตอเนอง (กระบวนการ) และ การประเมนสดทาย (product) มงานวจยจำนวนมาก ใชวธการหาประสทธภาพอยางสบสนปะปนกน และกำหนดนยามขนมาใหม บทความน จงเสนอความแตกตางระหวางการหาประสทธภาพทงสองวธ Abstract There are two methods for developmental testing of media effciency : (1) “The 90/90 Standard” which initiated by Assoc. Prof. Dr. Pruang Kumut and E1/E2 which initiated by Prof. Dr. Chaiyong Prammawong. The 90/90 standard is a method which supported by mastery learning theory. The E1/E2 gives emphasis on evaluation of process and evaluation of product. Many researchers are confused and created new media Efficiency Definition. This article attempts to explain the differences between the two techniques.
Klaus Brun - One of the best experts on this subject based on the ideXlab platform.
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Efficiency Definition and Load Management for Reciprocating and Centrifugal Compressors
Volume 4: Turbo Expo 2007 Parts A and B, 2007Co-Authors: Rainer Kurz, Klaus BrunAbstract:Reciprocating compressors and centrifugal compressors use different Definition of compressor Efficiency. This paper will provide guidelines for a true comparison, as well as a universal Efficiency Definition for both types of machines, based on the requirements the ultimate user is really interested in. Further, the impact of actual pipeline conditions on the change of Efficiency at different loads, using different means of control, is evaluated.Copyright © 2007 by ASME
Michael Ware - One of the best experts on this subject based on the ideXlab platform.
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two photon mode preparation and matching Efficiency Definition measurement and optimization
IEEE Transactions on Instrumentation and Measurement, 2005Co-Authors: Stefania Castelletto, I P Degiovanni, Alan L Migdall, G Furno, Valentina Schettini, Michael WareAbstract:We investigate the coupling Efficiency of parametric downconversion light (PDC) into single and multimode optical fibers as a function of the pump beam diameter, crystal length, and walk-off. We outline two different theoretical models for the preparation and collection of either single-mode or multimode PDC light (defined by, for instance, multimode fibers or apertures). Moreover, we define the mode-matching collection Efficiency, important for realizing a single-photon source based on PDC output into a well-defined single mode. We also define a multimode collection Efficiency that is useful for single-photon detector calibration applications.
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two photon single mode coupling Efficiency Definition measurement optimization
Conference on Precision Electromagnetic Measurements, 2004Co-Authors: Stefania Castelletto, I P Degiovanni, Alan L Migdall, Michael WareAbstract:The authors investigate the physical meaning of coupling a two-photon field (non-classical state of light) into two single mode optical fibers, studying the limits to this due to a non-coherent emission of photons in parametric down conversion, an important starting point for many single photon source schemes
Rainer Kurz - One of the best experts on this subject based on the ideXlab platform.
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Efficiency Definition and Load Management for Reciprocating and Centrifugal Compressors
Volume 4: Turbo Expo 2007 Parts A and B, 2007Co-Authors: Rainer Kurz, Klaus BrunAbstract:Reciprocating compressors and centrifugal compressors use different Definition of compressor Efficiency. This paper will provide guidelines for a true comparison, as well as a universal Efficiency Definition for both types of machines, based on the requirements the ultimate user is really interested in. Further, the impact of actual pipeline conditions on the change of Efficiency at different loads, using different means of control, is evaluated.Copyright © 2007 by ASME
Tadaki Hirose - One of the best experts on this subject based on the ideXlab platform.
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leaf level nitrogen use Efficiency Definition and importance
Oecologia, 2012Co-Authors: Tadaki HiroseAbstract:Nitrogen use Efficiency (NUE) has been widely used to study the relationship between nitrogen uptake and dry mass production in the plant. As a subsystem of plant nitrogen use Efficiency (NUE), I have defined leaf-level NUE as the surplus production (gross production minus leaf respiration) per unit amount of nitrogen allocated to the leaf, with factorization into leaf nitrogen productivity (NP) and mean residence time of leaf nitrogen (MRT). These concepts were applied to two herbaceous stands: a perennial Solidago altissima stand and an annual Amaranthus patulus stand. S. altissima had more than three times higher leaf NUE than A. patulus due to nearly three times longer MRT of leaf N. In both species, NUE and NP were higher at the leaf level than at the plant level, because most leaf N is involved directly in the photosynthetic activity and because leaf surplus production is higher than the plant net production. MRT was longer at the plant level. The more than twice as long MRT at the plant level as at the leaf level in S. altissima was due to a large contribution of nitrogen storage belowground in the winter in this species. Thus, comparisons between a perennial and an annual system and between plant- and leaf-level NUE with their components revealed the importance of N allocation, storage, recycling, and turnover of organs for leaf photosynthetic production and plant dry mass growth.
