Noise suppression by the radial amplitude‐slope rejection method

Geophysics ◽  
1986 ◽  
Vol 51 (3) ◽  
pp. 844-850 ◽  
Author(s):  
D. B. Neff ◽  
S. B. Wyatt
Keyword(s):  
Preliminary Data ◽  
Noise Suppression ◽  
Data Gathering ◽  
Environmental Noise ◽  
Geophysical Data ◽  
Data Handling ◽  
Data Manipulation ◽  
Rejection Method ◽  
Interval Velocities

Raw geophysical data generally contain spurious noise values which, if not removed, can seriously degrade any results obtained when the data are processed. Such spurious values may be caused by “environmental” noise generated externally to the data‐gathering equipment; introduced by the data‐gathering equipment; or introduced during preliminary data‐handling (tape copying, etc.) processes. Data‐manipulation steps, such as the conversion of raw stacking velocities to interval velocities, can also generate noise components which must be removed before the results can be utilized reliably.

160-LB: T1D Technology Uptake in Massachusetts Schools: Preliminary Data Gathering

Diabetes ◽  
2020 ◽  
Vol 69 (Supplement 1) ◽  
pp. 160-LB
Author(s):  
MARYANNE QUINN ◽  
CAITLIN M. PETTENGILL ◽  
JEAN AFZALI ◽  
SHANYN TOULOUSE ◽  
JEAN AFZALI ◽  
...  
Keyword(s):  
Preliminary Data ◽  
Data Gathering

scholarly journals Eliciting People’s Conceptual Models of Activities and Systems

2013 ◽  
Vol 1 (1) ◽  
pp. 1-17
Author(s):  
Ann Blandford
Keyword(s):  
Data Analysis ◽  
Preliminary Data ◽  
Conceptual Models ◽  
Computer Systems ◽  
Data Gathering ◽  
Structured Interviews ◽  
Think Aloud Protocols ◽  
High Workload ◽  
Verbal Data ◽  
And Task

People using computer systems are required to work with the concepts implemented by system developers. If there is a poor fit between system concepts and users’ pre-existing conceptualisation of domain and task, this places a high workload on the user as they translate between their own conceptualisation and that imposed by the system. The focus of this paper is on how to identify users’ conceptualisations of a domain – ideally, prior to system implementation. For this, it is necessary to gather verbal data from people that allows them to articulate their conceptual models in ways that are not overly constrained by existing devices but allows them to articulate taken-for-granted knowledge. Possible study types include semi-structured interviews, contextual inquiry interviews and think-aloud protocols. The authors discuss how to design a study, covering choosing between different kinds of study, detailed planning of questions and tasks, data gathering, and preliminary data analysis.

REFRACTION DATA FROM SINGLE‐ENDED REFRACTION PROFILES

Geophysics ◽  
1974 ◽  
Vol 39 (3) ◽  
pp. 292-301 ◽  
Author(s):  
A. B. Cunningham
Keyword(s):  
Conventional Method ◽  
Subsurface Layer ◽  
Data Gathering ◽  
Data Handling ◽  
Reflection Data ◽  
Static Corrections ◽  
Refraction Data

Subsurface layer thicknesses and velocities may be obtained from reverse refraction profiles or by special groupings of traces which effectively fabricate synthetic reverse profiles. Especially in offshore areas, and elsewhere, single‐ended profiles are normally used for data gathering. A method for determining refraction information directly from these single‐ended profiles has been developed, which eliminates the need for special field procedures or data handling when refraction information is desired. A comparison of the expected errors from this and the conventional method is given. Finally, an example of static corrections derived by applying this method to the first arrivals of ordinary reflection data is shown.

Characteristics of scientific Web publications: Preliminary data gathering and analysis

2004 ◽  
Vol 55 (14) ◽  
pp. 1239-1249 ◽  
Author(s):  
Erik Thorlund Jepsen ◽  
Piet Seiden ◽  
Peter Ingwersen ◽  
Lennart Björneborn ◽  
Pia Borlund
Keyword(s):  
Preliminary Data ◽  
Data Gathering ◽  
Data Gathering And Analysis

PRINCIPLES OF STATISTICAL DATA HANDLING.Fred Davidson. Thousand Oaks, CA: Sage, 1996. Pp. xii + 319. $49.95 cloth, $23.50 paper.

1997 ◽  
Vol 19 (4) ◽  
pp. 517-517
Author(s):  
H. Gary Cook
Keyword(s):  
Social Sciences ◽  
Graduate Students ◽  
Statistical Data ◽  
Data Gathering ◽  
Research Data ◽  
Data Handling ◽  
Know How ◽  
The Social

Have you ever read a book and said to yourself, “Boy I wish I had that back then?” In the area of data handling and manipulation, this is that book. Davidson has compiled 30 principles by which one can effectively handle data. The audiences for this text are: “(a) graduate students and novice researchers who want to expand their knowledge of the use of computers in the social sciences, including education, and (b) educators who want to improve data gathering in their teaching institutions” (p. x). Davidson offers this book as a companion to statistical texts. If you are looking for the equation for a dependent t-test or want to review the assumptions for ANOVA, this is not the book you are looking for. If you want to know how to efficiently handle information, for instance, research data, this is the text for you.

Improving environmental noise suppression for micronewton force sensing based on electrostatic by injecting air damping

2014 ◽  
Vol 85 (5) ◽  
pp. 055002 ◽  
Author(s):  
Yelong Zheng ◽  
Le Song ◽  
Gang Hu ◽  
Meirong Zhao ◽  
Yanling Tian ◽  
...  
Keyword(s):  
Noise Suppression ◽  
Environmental Noise ◽  
Force Sensing ◽  
Air Damping

scholarly journals Excess mortality in Europe and Serbia during the COVID-19 pandemic in 2020

Stanovnistvo ◽  
2021 ◽  
Vol 59 (1) ◽  
pp. 61-73
Author(s):  
Ivan Marinkovic ◽  
Marko Galjak
Keyword(s):  
Preliminary Data ◽  
Excess Mortality ◽  
Data Gathering ◽  
Total Mortality ◽  
European Countries ◽  
Eastern European ◽  
Excess Death ◽  
The North ◽  
Eastern European Countries ◽  
Excess Deaths

The 2020 pandemic came at a huge demographic cost, particularly regarding the increase in mortality. In this paper we examine excess deaths in Serbia and 34 other European countries in 2020. Methodological inconsistencies and big differences in how COVID-19 deaths were recorded across different countries make it difficult to make any cross-country comparisons, even with the scope limited only to Europe. Since the number of total deaths is a methodologically solid indicator, we looked at the differences between the total number of deaths in 2020 and compared that to deaths in 2019. The lowest increase in mortality - below 5% - occurred in countries in the north of Europe (Norway, Denmark, Finland, Latvia), while the highest increase - over 18% - was recorded in the southern and central parts of the continent (Albania, Northern Macedonia, Spain, Belgium, Poland, Slovenia, Russia). There is no clear geographical regularity. In 2020, Serbia had 12.6% more deaths compared to 2019, which was close to the European average. Within Serbia, statistical differences between regions were not large. Measuring the contribution of COVID-19 deaths to excess mortality is much more problematic. The excess death ratio is more helpful for understanding methodological and data-gathering issues than finding evidence about composition and divergence in mortality. According to this indicator (based on preliminary data), only 25% of excess deaths in Serbia in 2020 were caused by COVID-19, while the European average was 54%. However, in many (primarily Eastern European) countries in 2020, the indirect consequences of COVID-19 on the health of the population were more significant than the direct ones. It is precisely the ratio of COVID-19 diagnoses that led to death in total mortality that shows this. The final results may confirm this statement or indicate potential data manipulation. While this paper focuses only on the year 2020, as of Q1 of 2021, the pandemic is not nearing its end. Based on preliminary data published daily, Serbia had more COVID-19 deaths in the first four months of 2021 than for the whole of 2020. This indicates that the consequences of the pandemic for Serbia will be dire in 2021, regardless of the course the pandemic takes.

An Introductory Examination of Speech Disfluencies in Spanish–English Bilingual Children Who Do and Do Not Stutter During Narratives

2020 ◽  
Vol 5 (1) ◽  
pp. 131-141
Author(s):  
Cristina Rincon ◽  
Kia Noelle Johnson ◽  
Courtney Byrd
Keyword(s):  
Diagnostic Criteria ◽  
Preliminary Data ◽  
Diagnostic Information ◽  
English Speakers ◽  
Bilingual Children ◽  
English Bilingual ◽  
Developmental Stuttering ◽  
Mean Length Of Utterance

Purpose The purpose of this study is to examine the frequency and type of speech disfluencies (stuttering-like and nonstuttering-like) in bilingual Spanish–English (SE) children who stutter (CWS) to SE children who do not stutter (CWNS) during narrative samples elicited in Spanish and English to provide further diagnostic information for this population and preliminary data toward an expansion of this study. Method Participants included six bilingual SE children (three CWS, three CWNS) ranging in age from 5 years to 7;5 (years;months) and recruited from the surrounding Houston, Texas area. Participants provided a narrative sample in English and Spanish. The frequency of speech disfluencies was tabulated, and mean length of utterance was measured for each sample. Results Results indicate that both talker groups exceed the diagnostic criteria typically used for developmental stuttering. Regardless of the language being spoken, CWS participants had a frequency of stuttering-like speech disfluencies that met or exceeded the diagnostic criteria for developmental stuttering that is based on monolingual English speakers. The CWNS participants varied in meeting the criteria depending on the language being spoken, with one of the three CWNS exceeding the criteria in both languages and one exceeding the criteria for percentage of stuttering-like speech disfluencies in one language. Conclusion Findings from this study contribute to the development of more appropriate diagnostic criteria for bilingual SE-speaking children to aid in the reduction of misdiagnoses of stuttering in this population.

Sign in / Sign up

Export Citation Format

Share Document