Critical assessment of the impact of vehicle wandering on rut depth measurement accuracy using 13-point based lasers

Measurement ◽  
2018 ◽  
Vol 123 ◽  
pp. 246-253 ◽  
Author(s):  
Bing Hui ◽  
Yichang (James) Tsai ◽  
Mu Guo ◽  
Xiaofang Liu
Keyword(s):  
Measurement Accuracy ◽  
Critical Assessment ◽  
Depth Measurement ◽  
The Impact

Methods for Restricting Maximum Exposure Rate in Computerized Adaptative Testing

Methodology ◽  
2007 ◽  
Vol 3 (1) ◽  
pp. 14-23 ◽  
Author(s):  
Juan Ramon Barrada ◽  
Julio Olea ◽  
Vicente Ponsoda
Keyword(s):  
Measurement Accuracy ◽  
Computerized Adaptive Testing ◽  
Computation Time ◽  
Adaptive Testing ◽  
Exposure Rate ◽  
Control Parameters ◽  
The Impact ◽  
Two Alternatives ◽  
Selection Of ◽  
Maximum Exposure

Abstract. The Sympson-Hetter (1985) method provides a means of controlling maximum exposure rate of items in Computerized Adaptive Testing. Through a series of simulations, control parameters are set that mark the probability of administration of an item on being selected. This method presents two main problems: it requires a long computation time for calculating the parameters and the maximum exposure rate is slightly above the fixed limit. Van der Linden (2003) presented two alternatives which appear to solve both of the problems. The impact of these methods in the measurement accuracy has not been tested yet. We show how these methods over-restrict the exposure of some highly discriminating items and, thus, the accuracy is decreased. It also shown that, when the desired maximum exposure rate is near the minimum possible value, these methods offer an empirical maximum exposure rate clearly above the goal. A new method, based on the initial estimation of the probability of administration and the probability of selection of the items with the restricted method ( Revuelta & Ponsoda, 1998 ), is presented in this paper. It can be used with the Sympson-Hetter method and with the two van der Linden's methods. This option, when used with Sympson-Hetter, speeds the convergence of the control parameters without decreasing the accuracy.

The impact of duration observations on precision of results GNSS measurements

2017 ◽  
Vol 921 (3) ◽  
pp. 7-13 ◽  
Author(s):  
S.V. Grishko
Keyword(s):  
Measurement Accuracy ◽  
Functional Dependence ◽  
Observation Time ◽  
Satellite Networks ◽  
Satellite Measurements ◽  
Proposed Model ◽  
Actual Error ◽  
Gnss Measurements ◽  
The Impact ◽  
Qualitative Characteristics

This paper shows that the accuracy of relative satellite measurements depend not only on the length of the baseline, as it is regulated by the rating formula of accuracy of GNSS equipment, but also on the duration of observations. As a result of the strict adjustment much redundant satellite networks with different duration of observations obtained covariance matrix of baselines, the most realistic reflecting the actual error of satellite observations. Research of forms of communication of these errors from length of the baseline and duration of its measurement is executed. A significant influence of solar activity on accuracy of satellite measurements, in general, leads to unequal similar series of measurements made at different periods, for example, in the production of monitoring activities. The model of approximation of the functional dependence of accuracy of the baseline from its length and duration of observations having good qualitative characteristics is offered. Based on the proposed model, we analyzed the dynamics of changes in measurement accuracy with an increase in observation time.

scholarly journals Modeling the impact of climate change on mussel aquaculture in a coastal upwelling system: A critical assessment

2021 ◽  
Vol 775 ◽  
pp. 145020
Author(s):  
Isabel Fuentes-Santos ◽  
Uxío Labarta ◽  
María José Fernández-Reiriz ◽  
Susan Kay ◽  
Solfrid Sætre Hjøllo ◽  
...  
Keyword(s):  
Climate Change ◽  
Coastal Upwelling ◽  
Critical Assessment ◽  
Impact Of Climate Change ◽  
Upwelling System ◽  
System A ◽  
The Impact

ON THE CONCEPT AND CONTENT OF “ANOTHER ORDER OF PRE-TRIAL SETTLEMENT OF DISPUTES, ESTABLISHED BY THE AGREEMENT”

2021 ◽  
Vol 11 (4) ◽  
pp. 282-298
Author(s):  
D.G. FILCHENKO ◽  
E.A. EVTUKHOVICH
Keyword(s):  
Supreme Court ◽  
Russian Federation ◽  
Dispute Settlement ◽  
Critical Assessment ◽  
The Supreme Court ◽  
The Russian Federation ◽  
Characteristic Features ◽  
Dispute Settlement Procedure ◽  
Settlement Of Disputes ◽  
The Impact

The article analyzes the provisions of the arbitration procedural legislation and the practice of its application on a different pre-trial dispute settlement procedure established by the contract. A different pre-trial procedure is considered as an alternative to the general claim procedure for resolving disputes. The characteristic features of a different pre-trial order have been revealed. The authors summarized the practice of arbitration courts, highlighting other demanded pre-trial dispute settlement procedures. In particular, examples of atypical other methods of dispute settlement are provided. Separately, the issue of the admissibility of the cancellation of the general claim procedure for the settlement of disputes by the agreement was considered. An independent subject of the authors’ analysis was mediation as a pre-trial dispute settlement procedure. The work also focuses on the impact of a different pre-trial dispute settlement procedure on the course of the limitation period. The article discusses the provisions of the Resolution of the Plenum of the Supreme Court of the Russian Federation of 22 June 2021 No. 18 “On Some Issues of Pre-Trial Settlement of Disputes Considered in Civil and Arbitration Proceedings”. Some of the recommendations of the Plenum of the Supreme Court of the Russian Federation received critical assessment. The authors note the existing contradictions in the legislation and possible ways to overcome them, formulate individual conclusions as a result of studying the materials of the practice of arbitration courts.

A Critical Assessment of Environmental Degeneration and Climate Change

2013 ◽  
pp. 212-229 ◽  
Author(s):  
Christian Ploberger
Keyword(s):  
Climate Change ◽  
Soil Erosion ◽  
Development Strategy ◽  
Negative Impact ◽  
Critical Assessment ◽  
Growth Strategy ◽  
Strategic Decision ◽  
Environmental Challenges ◽  
Political Implications ◽  
The Impact

China and its population are confronted with fundamental environmental challenges, as both, environmental degeneration and the impact of climate change, exhibit critical social, economic and political implications for their future development. Among the various environmental challenges China faces, pollution issues, soil erosion, acid rain, and sea-level rise are identified. This variety of environmental issues increases the underling complexity of how best to address these challenges, especially as China’s growth strategy has the potential to exacerbate the negative impact on the environment further. The strategic decision which development strategy China will follow – a ‘growth first and clean up later’ or ‘cleaning up while growing’ – carries serious implications not only for the environmental situation in China itself, but for the global community as well.

A Critical Assessment of Environmental Degeneration and Climate Change

2011 ◽  
pp. 472-491
Author(s):  
Christian Ploberger
Keyword(s):  
Climate Change ◽  
Soil Erosion ◽  
Development Strategy ◽  
Negative Impact ◽  
Critical Assessment ◽  
Growth Strategy ◽  
Environmental Challenges ◽  
International Reputation ◽  
Political Economic ◽  
The Impact

China and its population are confronted with fundamental environmental challenges, as both environmental degeneration and the impact of climate change exhibit critical political, economic, and social implications for their future development. Among the various environmental challenges China faces, this chapter identifies pollution issues, soil erosion, acid rain, and sea-level rise. This variety of environmental issues increases the underling complexity of how best to address these challenges, especially as China’s growth strategy has the potential to exacerbate the negative impact on the environment further. Hence the question which development strategy China will follow–a ‘growth first and clean up later’ or ‘cleaning up while growing’–carries serious implications not only for the environmental situation in China itself, but for the international community as well. It is crucial to recognize that China’s multidimensional environmental challenges also carry critical implications for China’s international reputation.

Monodispersion Soot Particle Interference on NO2 Concentration Measurement Accuracy Using NDIR

2013 ◽  
Vol 345 ◽  
pp. 251-254
Author(s):  
Yan Jun Zhao ◽  
Shou Guang Cheng ◽  
Bin Qu
Keyword(s):  
Light Intensity ◽  
Measurement Accuracy ◽  
Solution Method ◽  
Soot Particle ◽  
Measurement Methods ◽  
Concentration Measurement ◽  
Infrared Light ◽  
Soot Particles ◽  
Characteristic Wavelength ◽  
The Impact

NDIR is one of the NO2 concentration measurement methods. The NO2 concentration can be figured out by measuring the attenuation of the infrared light intensity on the characteristic wavelength. But the infrared light intensity is also attenuated by the monodispersion soot particles because of the particles absorption and scattering. So the monodispersion soot particles can impact the NO2 concentration accuracy. The interference of the monodispersion particles is discussed in the paper. Simulation results show that the impact parameters on the NO2 concentration accuracy include the received scattering angle range, particle size and concentration. The solution method is brought out and NO2 concentration measurement accuracy can be improved.

Critical appraisal of a large population-based case–control study

2017 ◽  
Author(s):  
Mark Elwood
Keyword(s):  
Dose Response ◽  
Case Control Study ◽  
Large Population ◽  
Quantitative Relationship ◽  
Population Based ◽  
Case Control ◽  
Critical Assessment ◽  
Response Consistency ◽  
The Impact ◽  
Control Study

This chapter shows a large population-based case-control study, to address the quantitative relationship between alcohol consumption and breast cancer. It shows the logistic and design issues, and the assessment of dose-response, consistency and specificity. The critical assessment follows the scheme set out in chapter 10: describing the study, assessing the non-causal explanations of observation bias, confounding, and chance variation; assessing time relationships, strength, dose-response, consistency and specificity, and applying the results to the eligible, source, and target populations; and then comparing the results with evidence from other studies, considering consistency and specificity, biological mechanisms, and coherence with the distribution of exposures and outcomes. The chapter gives a summary and table of the critical assessment and its conclusions; and comments on the impact of the study and research carried out since.

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