scholarly journals NHL-based mortars in restoration: frost-thaw and salt resistance testing methods towards a field related application

2021 ◽  
pp. e00531
Author(s):  
Frowin Ruegenberg ◽  
Martin Schidlowski ◽  
Tobias Bader ◽  
Anja Diekamp
Keyword(s):  
Salt Resistance ◽  
Resistance Testing ◽  
Testing Methods ◽  
Related Application

Research of On-Site Screening and Non-Destructive Testing for Damaged Wooden Components of the Long Corridor in Temple of Heaven

2020 ◽  
Vol 980 ◽  
pp. 321-332
Author(s):  
Xin Li ◽  
Wei Qian ◽  
Rui Xu ◽  
Li Hong Chang ◽  
Max Schubert
Keyword(s):  
Stress Wave ◽  
Resistance Testing ◽  
Non Destructive Testing ◽  
Comparison Analysis ◽  
Testing Methods ◽  
Destructive Testing ◽  
Micro Drilling ◽  
As Stress ◽  
Drilling Resistance ◽  
Non Destructive

Take the Long Corridor in Temple of Heaven as an example, some screening and testing process for its wooden components which have damaged was recommended. By pre-knocking survey, the wooden components which probably have damaged were screened out and as the important focus. Then, some non-destructive testing methods such as stress-wave testing and micro-drilling resistance testing were utilized. By the comparison, analysis and interaction correction for the testing images, the internal damaged situation of wooden components were obtained. Three typical types of wooden components were selected in this study, and some specific and suitable non-destructive testing methods which adapt to their position characteristic were discussed. Thus, it can give some useful suggestions and data supporting for the later repairing and management works.

HIV Resistance Testing: Methods, Utility, and Limitations

2000 ◽  
Vol 5 (3) ◽  
pp. 159-168 ◽  
Author(s):  
TIMOTHY M. ALCORN ◽  
HAWAZIN FARUKI
Keyword(s):  
Resistance Testing ◽  
Testing Methods ◽  
Hiv Resistance

scholarly journals Characteristics of rifampicin-resistant tuberculosis detection in China, 2015–2019

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Wei Su ◽  
Yun-zhou Ruan ◽  
Tao Li ◽  
Xin Du ◽  
Jia-wen Jiang ◽  
...  
Keyword(s):  
Drug Resistance ◽  
Susceptibility Testing ◽  
Information Management System ◽  
Rifampicin Resistance ◽  
Resistance Testing ◽  
County Level ◽  
Molecular Tools ◽  
Screening Rate ◽  
Testing Methods ◽  
Detection Strategy

Abstract Background The very high burden of rifampicin resistance tuberculosis (RR-TB) and the very low detection of RR-TB cases are a major challenge that China has been facing. This study analyzed the characteristics of RR-TB detection in China after the change of RR-TB detection strategy since 2015, aiming to provide reference and evidence for the development of more precise national drug resistance tuberculosis prevention and control policy. Methods We extracted data related to rifampicin resistance screening from the national Tuberculosis Information Management System (TBIMS) from 2015 to 2019, and used descriptive research methods to analyze the screening rate of presumptive RR-TB, the number and duration of RR-TB patients detected and drug resistance testing methods in each year. Chi-square test was used to compare the differences in component ratio or rate between years, and Kruskal Wallis test was used to compare the differences in median days for detection of RR-TB patients in each year. Results A total of 68,200 RR-TB cases were detected during 2015–2019, of which 48.1% were new cases. The number and detection rate of RR-TB cases increased year by year, from 10 019 and 14.3% in 2015 to 18 623 and 28.7% in 2019, respectively. Of the bacteriologically confirmed TB cases, 81.9% were tested for RR in 2019, a considerable increase from 29.5% in 2015. In 2019, only 41.0% of RR-TB cases had fluoroquinolones (FQs) susceptibility testing performed, and this proportion has been declining year by year since 2016. The proportion of application of rapid molecular tools increased from 24.0% in 2015 to 67.1% in 2019, and the median days to obtain RR results was significantly shortened. In 2019, 76.0% of RR-TB cases were diagnosed as presumptive RR-TB in county-level hospitals. Conclusions After China modified the RR-TB detection strategy, the screening rate of RR and the number of RR-TB cases increased significantly. The RR testing methods now predominantly utilize rapid molecular tools. However, comprehensive measures should be implemented to close the gap in the detection of RR-TB cases. It is imperative to take FQs susceptibility testing seriously and effectively strengthen the laboratory capacity of county-level hospitals. Graphical Abstract

scholarly journals A Comparative Analysis of Resistance Testing Methods inAedes albopictus(Diptera: Culicidae) from St. Johns County, Florida

2017 ◽  
Vol 100 (3) ◽  
pp. 571-577 ◽  
Author(s):  
Christy M. Waits ◽  
Ali Fulcher ◽  
Jessica E. Louton ◽  
Alec G. Richardson ◽  
James J. Becnel ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Resistance Testing ◽  
Testing Methods

scholarly journals Scoping review of the rolling resistance testing methods and factors that impact manual wheelchairs

2021 ◽  
Vol 8 ◽  
pp. 205566832098030
Author(s):  
Joseph Ott ◽  
Jonathan Pearlman
Keyword(s):  
Scoping Review ◽  
Rear Axle ◽  
Rolling Resistance ◽  
Test Methods ◽  
Resistance Testing ◽  
Testing Methods ◽  
Tire Pressure ◽  
Multiple Parameters ◽  
Propulsion Force ◽  
Manual Wheelchairs

Introduction Rolling resistance (RR) is a drag force acting on manual wheelchairs that is associated with increased propulsion force and is linked to secondary disabling conditions of the upper limbs. A scoping review was conducted to understand how RR of manual wheelchairs has been measured and to identify limitations of those test methods and the factors tested. Methods A total of 42 papers were identified and reviewed, and test methods were categorized based on the measurement style of RR, testing level, and if multiple parameters could be tested. Additionally, 34 articles were reviewed for what factors were tested. Results Seven different testing methods categories were identified: drag test, treadmill, motor draw, deceleration, physiological expenditure, ergometer/dynamometer, and robotic test rig. Relevant articles were categorized into testing factor categories: camber, toe, tire type, tire pressure, caster type, mass, mass distribution, and type of surface. Conclusions The variety of testing methods suggests the need for a standardized method that can be used for wheelchair wheel design and selection to reduce RR. It is important to use adjustments, such as a forward rear axle position to mitigate RR as well as using high-pressure pneumatic tires that are properly inflated.

Comparison of Fire Resistance Testing Methods for Structures with Timber Elements

2021 ◽  
Vol 109 ◽  
pp. 73-85
Author(s):  
Tomáš Žajdlík ◽  
Karel Šuhajda
Keyword(s):  
Fire Resistance ◽  
Experimental Testing ◽  
Building Construction ◽  
The Other ◽  
Resistance Testing ◽  
Testing Methods ◽  
The Czech Republic ◽  
Timber Construction ◽  
Main Disadvantage ◽  
Natural Wood

Wood is a natural anisotropic material that is used in building construction because of the advantageous properties of wood. Speed of construction and the final price of the building represent the main advantages of timber houses. On the other hand, the main disadvantage of these buildings can be the low fire resistance due to the flammable properties of natural wood. There are many limitations for designing these kinds of buildings in the Czech Republic. The limitations are presented in the standards and laws of the CR. This article focuses on the comparison of the methods for testing structures using timber construction elements. The paper presents and compares experimental testing results of a timber structure’s fire resistance in a combustion chamber.

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