The Foreman Lecture: the State Space Approach to Time Series Analysis and its Potential for Official Statistics (with Discussion)

2000 ◽  
Vol 42 (1) ◽  
pp. 1-23 ◽  
Author(s):  
J. Durbin
Keyword(s):  
Time Series ◽  
Time Series Analysis ◽  
State Space ◽  
The State ◽  
Official Statistics ◽  
State Space Approach ◽  
Series Analysis ◽  
Space Approach

scholarly journals Vibration-based damage detection in structures using time series analysis

2006 ◽  
Vol 220 (3) ◽  
pp. 261-272 ◽  
Author(s):  
I Trendafilova
Keyword(s):  
Time Series ◽  
Time Series Analysis ◽  
State Space ◽  
The State ◽  
Statistical Characteristics ◽  
Space Representation ◽  
Test Case ◽  
State Space Representation ◽  
Series Analysis ◽  
Concrete Plate

The paper considers some possibilities to use pure time series analysis for damage diagnosis in vibrating structures. It introduces the basics of the state space methodology and discusses a number of possible methods to extract damage sensitive features from the state space representation of the attractor of a vibrating system. The discussed methods can be divided into two groups: methods that use non-linear dynamics characteristics and methods based on the statistical characteristics of the distribution of points on the attractor. Each possible damage feature is introduced separately and the advantages and shortfalls of its application are discussed. The application of the suggested techniques is demonstrated on a test case of a reinforced concrete plate.

scholarly journals Vitamin D, SARS-CoV-2 and Causal Associations in Transversal Studies: The Time-Series Analysis to Reveal Potential Confounders. Comment on Gaudio et al. Vitamin D Levels Are Reduced at the Time of Hospital Admission in Sicilian SARS-CoV-2-Positive Patients. Int. J. Environ. Res. Public Health 2021, 18, 3491

2021 ◽  
Vol 18 (13) ◽  
pp. 6793
Author(s):  
Cristiano Ialongo ◽  
Antonella Farina ◽  
Raffaella Labriola ◽  
Antonio Angeloni ◽  
Emanuela Anastasi
Keyword(s):  
Public Health ◽  
Vitamin D ◽  
Time Series ◽  
Severe Acute Respiratory Syndrome ◽  
Time Series Analysis ◽  
Hospital Admission ◽  
The State ◽  
Series Analysis ◽  
Vitamin D Levels ◽  
Time Of Admission

We read with great interest the paper by Gaudio and colleagues on vitamin D and on the state of patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) at the time of admission [...]

scholarly journals SEWAGE DISPOSAL SITUATION AT DIGHA COAST: A TIME SERIES ANALYSIS

2021 ◽  
Vol 16 (11) ◽  
Author(s):  
Sumouli Roy
Keyword(s):  
Time Series ◽  
Time Series Analysis ◽  
Coastal Area ◽  
West Bengal ◽  
Indian Subcontinent ◽  
Coastal Region ◽  
The State ◽  
Sewage Disposal ◽  
Northeastern Part ◽  
Series Analysis

West Bengal is a maritime state in the northeastern part of the Indian subcontinent with a coastal area of 10,158.22 sq. km. The coastal region consists of the Digha coast, which is noted for its tourism and fish landing activities. We highlight in this paper, a load of nitrate and phosphate during premonsoon in the aquatic phase of Digha for more than three decades (1984 – 2020) to observe the trend of these two variables, which are important components of sewage. A uniform increase in the concentrations of the nutrients is observed except in the years 2009 and 2020. A sudden peak observed for both the nutrients during 2009 may be attributed to Aila, a super cyclone that hit coastal West Bengal on 25th May 2009. The dip in the levels of nutrients during 2020, may be the effect of the COVID lockdown phase in the state during which all the tourism and fish landing activities were completely paralyzed.

Assessment of cross-laminated timber panels by the state-space approach

2019 ◽  
Vol 22 (11) ◽  
pp. 2375-2391
Author(s):  
Asad S Albostami ◽  
Zhangjian Wu ◽  
Lee S Cunningham
Keyword(s):  
State Space ◽  
Three Dimensional ◽  
The State ◽  
Composite Panel ◽  
State Space Approach ◽  
Cross Laminated Timber ◽  
Practical Applications ◽  
The Cross ◽  
Analytical Approaches ◽  
Space Approach

In this article, cross-laminated timber panels are investigated as a novel engineering application of the state-space approach. As cross-laminated timber is a laminated composite panel, the three-dimensional analytical method provided by the state-space approach offers the potential for improved accuracy over existing common approaches to the analysis of cross-laminated timber. Before focusing on the specific application to cross-laminated timber, the general theory of the state-space approach is outlined. The method is then applied to describe the behaviour of a number of cross-laminated timber panel configurations previously examined experimentally and analytically. In order to demonstrate the capability of the state-space approach in this application, the results are compared with those from various two-dimensional and three-dimensional analytical approaches and finite element modelling briefly. With a view to design, different failure criteria are explored to assess the ultimate strength of the cross-laminated timber panels. The state-space approach demonstrates its superior capability in capturing the nonlinear distribution of the elastic stresses through the thickness of the cross-laminated timber panels over a range of span-to-thickness ratios common in practical applications.

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