Mixing Performance Evaluation for Commercially Available Micromixers Using Villermaux–Dushman Reaction Scheme with the Interaction by Exchange with the Mean Model

2017 ◽  
Vol 21 (6) ◽  
pp. 816-820 ◽  
Author(s):  
Joseph M. Reckamp ◽  
Ashira Bindels ◽  
Sophie Duffield ◽  
Yangmu Chloe Liu ◽  
Eric Bradford ◽  
...  
2011 ◽  
Author(s):  
Zhidong Bai ◽  
Keyan Wang ◽  
Wing-Keung Wong ◽  
Kok Fai Phoon

1983 ◽  
Vol 29 (10) ◽  
pp. 1781-1786 ◽  
Author(s):  
N P Kubasik ◽  
P A Lundberg ◽  
R G Brodows ◽  
G D Hallauer ◽  
D G Same ◽  
...  

Abstract We present here the first performance evaluation of a new direct method for free thyroxin (T4) in serum by radioimmunoassay, with use of coated tubes and a radiolabeled T4 analog (Diagnostic Products Corp.). The assay is precise and robust: within-run imprecision (CV), 3.1-6.6%; between-run imprecision, 4.0-7.9%; no demonstrable variation between technologists irrespective of experience with the method. No outliers were observed when we compared the free T4 results with serum total T4. Reference values are reported for a total of 1243 euthyroid subjects; there was no significant age effect on serum free T4 in women 26 to 72 years old. The biological variation was about +/- 35% of the mean (2 SD). Free T4 results are the same for serum and plasma. The assay performs well in hypothyroidism and hyperthyroidism, and distinguishes individuals with thyroid disease from normal individuals. Free T4 values in women taking oral contraceptives are normal. Depressed results were often observed in acute nonthyroidal illness and continuing pregnancy. These results were directly comparable with those of another commercial direct radiolabeled-T4 analog kit for free T4.


2016 ◽  
Vol 152 ◽  
pp. 26-34 ◽  
Author(s):  
Mihret Woldemariam ◽  
Roman Filimonov ◽  
Tuomas Purtonen ◽  
Joonas Sorvari ◽  
Tuomas Koiranen ◽  
...  

1990 ◽  
Vol 14 (3) ◽  
pp. 119-124 ◽  
Author(s):  
F. Christian Zinkhan ◽  
Kossuth Mitchell

Abstract This paper explores two timberland index applications: asset allocation and investment performance evaluation. The Southern Timberland Index Fund (STIF), a southern pine index fund, is adopted for use in these applications. In the asset allocation application, the mean risk of risk-return efficient portfolios containing financial assets and the STIF is discovered to be 43% less than the mean risk of the efficient portfolios containing only financial assets. Efficient portfolios contain the STIF in proportions as high as almost 30%. As far as performance is concerned, a timberland index is suggested for use as a benchmark for evaluating (1) timberland investment managers and (2) the investment performance of timberland versus other investment alternatives. Before such applications become commonplace, it is concluded that problems associated with existing timberland indexes be addressed. South. J. Appl. For. 14(3):119-124.


1982 ◽  
Vol 51 (2) ◽  
pp. 635-644 ◽  
Author(s):  
S. L. Mackaman ◽  
A. C. Bittner ◽  
M. M. Harbeson ◽  
R. S. Kennedy ◽  
D. A. Stone

To ascertain the suitability of the Wonderlic Personnel Test for inclusion in a battery of Performance Evaluation Tests for Environmental Research (PETER) parallel forms were administered daily, without coaching or feedback, for 19 consecutive work days to 13 Navy enlisted men who were high school graduates. Over Days 1 to 10 and 18 to 19, unique forms were administered; forms were repeated over Days 11 to 17. The mean score significantly increased from about 23 to 29 amounting to 0.7 standard score units. Subsequent to Day 4, the change in performance was linear and accounted for 57% of the Days 5 to 19 variation. The standard deviations were homogeneous over all repeated and unrepeated days, and the reliability correlations were differentially stable across all days, with a task definition of r = .70. The group mean increase of more than 21 percentile points on the Wonderlic has implications for selection and counseling. It is noteworthy that the average subject in our group scored equal to “stenographer” or “draftsman” on the first occasion but typical of “engineer” or “accountant” on the last. It was concluded that the Wonderlic is suitable for inclusion in PETER.


2015 ◽  
Vol 22 (5) ◽  
pp. 773-790 ◽  
Author(s):  
Manik Chandra Das ◽  
Bijan Sarkar ◽  
Siddhartha Ray

Purpose – Technical education plays an important role in the development of a country in this age of knowledge economy. Indian technical education system is facing many opportunities and challenges, one of which is how to assess the performance of technical institutions based on multiple criteria. The purpose of this paper is to describe and illustrate an application of a structured approach to determine relative efficiency and ranking of a set of private engineering colleges under multi-criteria environment. Design/methodology/approach – To cater to the increasing need of technical manpower, a very large number of private engineering colleges have been established in the state of West Bengal of eastern India within a very short period. Uniform and acceptable quality of the graduates from many of these private engineering colleges is a concern today and therefore the need for performance evaluation and ranking of these colleges is paramount. For the proposed framework a comparatively new multiple criteria decision-making tool, multiple objective optimization on the basis of simple ratio analysis (MOOSRA) is applied for performance evaluation of eight private engineering colleges taking into account some selected criteria. The subjective weights of the criteria are determined using fuzzy analytic hierarchy process (AHP). Findings – For the analysis, the required data have been provided by the management of the colleges for the academic year of 2011-2012. Based on request of the management identities of these institutes are not disclosed. The institutes are considered as anonymous institute and coded as A, B, C, D, E, F, G and H, respectively. The result of the study reveals that E is the best and the ranking the authors get is in the order of E > F > A > H > D > C > G > B. The result shows that composite performance scores of institutions A, E and F are above the mean performance score value. Therefore these three institutions can be considered as the benchmark or peer group for the remaining five institutions which lie below the mean line of the performance score value. Originality/value – This paper provides a comprehensive yet detailed methodology for performance evaluation of academic institutions. The novelty in the approach is that fuzzy AHP and MOOSRA are being used as a benchmarking technique in a simple methodology which is generic in nature. It is one of the few studies that evaluate the performance of technical institutions in India.


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