scholarly journals Applicability of the long‐term uncertainty in measurement ( LTUM ) method for analytical performance assessment in clinical cytometry laboratories

2021 ◽  
Author(s):  
Louis‐Thomas Dannus ◽  
Aurélien Mulliez ◽  
Marc Berger ◽  
Céline Bourgne ◽  
Richard Veyrat‐Masson
Keyword(s):  
Performance Assessment ◽  
Analytical Performance ◽  
Uncertainty In Measurement

scholarly journals Long-Term Performance Assessment of an Operative Post-Tensioned Timber Frame Structure

2019 ◽  
Vol 145 (5) ◽  
pp. 04019034 ◽  
Author(s):  
G. Granello ◽  
C. Leyder ◽  
A. Frangi ◽  
A. Palermo ◽  
E. Chatzi
Keyword(s):  
Performance Assessment ◽  
Frame Structure ◽  
Timber Frame ◽  
Long Term Performance ◽  
Term Performance ◽  
Post Tensioned

scholarly journals Using Shewhart p control charts of external quality-assurance program data to monitor analytical performance of a clinical chemistry laboratory

1996 ◽  
Vol 42 (9) ◽  
pp. 1478-1482 ◽  
Author(s):  
D Chesher ◽  
L Burnett
Keyword(s):  
Quality Assurance ◽  
Control Charts ◽  
Clinical Chemistry ◽  
Analytical Performance ◽  
External Quality Assurance ◽  
Chemistry Laboratory ◽  
Quality Assurance Program ◽  
External Quality ◽  
Simple Method

Abstract We have investigated the application of Shewhart's p control charts in our external quality-assurance program to monitor the long-term performance of our laboratory's analytical quality. The p control charts have been able to detect long-term changes in our laboratory's analytical performance that would have been difficult to detect by more-conventional techniques. We have explored methods for interpreting these charts as well as some of their limitations, which include minimum subgroup size and dependence on constant specification limits. These charts may be not only a simple method for the long-term monitoring of analytical performance of a laboratory, but also of use to the organizers of external quality-assurance programs.

scholarly journals Highly Insulated Wall Systems with Exterior Insulation of Polyisocyanurate under Different Facer Materials: Material Characterization and Long-Term Hygrothermal Performance Assessment

Materials ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3373 ◽  
Author(s):  
Emishaw Iffa ◽  
Fitsum Tariku ◽  
Wendy Ying Simpson
Keyword(s):  
Performance Assessment ◽  
Control Strategy ◽  
Energy Efficient ◽  
Material Characterization ◽  
Air Leakage ◽  
Material Development ◽  
Hygrothermal Performance ◽  
New Construction ◽  
Wood Frame

The application of exterior insulation in both new construction and retrofits is a common practice to enhance the energy efficiency of buildings. In addition to increased thermal performance, the rigid insulation can serve to keep the sheathing board warm and serve as a water-resistive barrier to keep moisture-related problems due to condensation and wind-driven rain. Polyisocyanurate (PIR) rigid boards have a higher thermal resistance in comparison to other commonly used exterior insulation boards. However, because of its perceived lower permeance, its use as exterior insulation is not very common. In this study, the hygrothermal property of PIR boards with different facer types and thicknesses is characterized. The material data obtained through experimental test and extrapolation is used in a long term hygrothermal performance assessment of a wood frame wall with PIR boards as exterior insulation. Results show that PIR with no facer has the smallest accumulated moisture on the sheathing board in comparison to other insulation boards. Walls with a bigger thickness of exterior insulation perform better when no vapor barrier is used. The PIR exterior insulation supports the moisture control strategy well in colder climates in perfect wall scenarios, where there is no air leakage and moisture intrusion. In cases where there is trapped moisture, the sheathing board has a higher moisture content with PIR boards with both aluminum or fiberglass type facers. An innovative facer material development for PIR boards can help efforts targeting improved energy-efficient and durable wall systems.

Performance Assessment of Firms Following Sustainalytics ESG Principles

2019 ◽  
Keyword(s):  
Performance Assessment ◽  
Stock Price ◽  
Good Governance ◽  
Price Performance

The authors explore whether firms rated highly by Sustainalytics based on ESG criteria are rewarded with superior long-term stock price performance. They find that firms with the highest ESG ratings statistically outperform the S&P 500 index, although not on a risk-adjusted basis. Firms with higher governance and social scores also statistically outperform those firms with corresponding lower scores. Firms with better (worse) governance scores produce statistically significant positive (negative) alpha values. Firms less likely to adhere to strong governance principles are penalized in the market, while firms more likely following strong social and environmental principles are negatively assessed. Improved governance scores and to a lesser extent improved social scores produce statistically significant positive alpha values whereas negative changes in environmental scores are positively received by the market. Overall, investors are not hurt by following an ESG philosophy with the market rewarding firms for good governance, penalizing those with strong environmental records, and meeting with ambivalence those with strong social records.

Durability and efficiency tests for direct methanol fuel cell's long-term performance assessment

Energy ◽  
2016 ◽  
Vol 107 ◽  
pp. 716-724 ◽  
Author(s):  
Pulin Yeh ◽  
Chu Hsiang Chang ◽  
Naichien Shih ◽  
Naichia Yeh
Keyword(s):  
Performance Assessment ◽  
Direct Methanol ◽  
Long Term Performance ◽  
Term Performance
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