Results 31 to 40 of about 184,803 (135)

Setting Dengue Fever Epidemic Thresholds Between 2016 and 2021 in the Central Health Region, Burkina Faso: An Ecological Study

open access: yesJournal of Epidemiology and Global Health, 2023
Background Dengue fever (DF) is endemic in Burkina Faso, with 70% of its burden supported by the Central Health Region. Then, a single confirmed case can no longer mean an epidemic. This study aimed at describing trends and setting epidemic thresholds of
Jean Claude Romaric Pingdwindé Ouédraogo   +7 more
doaj   +1 more source

Cumulative sum analysis of the learning curve of laparoendoscopic single-site robot-assisted radical prostatectomy

open access: yesAsian Journal of Surgery, 2023
Background: Radical prostatectomy has become the gold standard for treating localized prostate cancer. Improvement in the single-site technique and surgeon's skill reduces not only the hospital duration but also the number of wounds.
Ming-Ru Lee   +9 more
doaj   +1 more source

Wind Turbine Gearbox Failure Detection Through Cumulative Sum of Multivariate Time Series Data

open access: yesFrontiers in Energy Research, 2022
The wind energy industry is continuously improving their operational and maintenance practice for reducing the levelized costs of energy. Anticipating failures in wind turbines enables early warnings and timely intervention, so that the costly corrective
Effi Latiffianti   +3 more
doaj   +1 more source

A Note on Cumulative Sums

open access: yesThe Annals of Mathematical Statistics, 1946
Not ...
openaire   +3 more sources

Cumulative Sum Schemes for Monitoring the Ratio of Two Correlated Normal Variables in Short Production Runs with Fixed and Variable Sampling Interval Strategies: Application in Wheat Seed Processing

open access: yesMathematics
Short-run production is frequently used in manufacturing due to technological advancements, and it is integral to Agriculture 4.0. In addition, monitoring multiple variables in short production runs (SPR) is often essential.
Wei Yang   +3 more
doaj   +1 more source

On Moments of Cumulative Sums

open access: yesThe Annals of Mathematical Statistics, 1966
In the theory of sequential analysis developed by Wald [6] there appear sums of the form $X = \sum^N_1 x_i$ where both the $x_i$ and $N$ are random variables. In this note we shall consider conditions for the existence of $E(X^k)$ when the $x_i$ are independent random variables and the event $N \geqq i$ is independent of $x_i, x_{i + 1}, \cdots$. Let $|
openaire   +3 more sources

The Measurement Errors and Their Effects on the Cumulative Sum Schemes for Monitoring the Ratio of Two Correlated Normal Variables

open access: yesAxioms
Monitoring the ratio of two correlated normal random variables is often used in many industrial manufacturing processes. At the same time, measurement errors inevitably exist in most processes, which have different effects on the performance of various ...
Wei Yang, Xueting Ji, Jiujun Zhang
doaj   +1 more source

On designing an assorted control charting approach to monitor process dispersion: an application to hard-bake process

open access: yesJournal of Taibah University for Science, 2020
The monitoring of process variability is an important feature to get optimal output from a process. Control charts are vital tools used for efficient process monitoring. The commonly used types of charts include Shewhart, cumulative sum and exponentially
Nasir Abbas   +3 more
doaj   +1 more source

WSN acoustic target iterations positioning method based on fixed time window cumulative sum [PDF]

open access: yesJisuanji gongcheng, 2019
In order to improve the sensing ability of sensor nodes to acoustic events under environmental noise interference,a fixed time window cumulative sum method is proposed based on the maximum likelihood cumulative algorithm.The influence law of quaternary ...
SHEN Xianhao,LIU Kangyong,NAI He,JIN Hong
doaj   +1 more source

Initial Learning Experience for Electromagnetic Navigation Bronchoscopy: A Surgeon's Experience While Introducing the Navigation Technology in Pulmonary Lesion Diagnosis

open access: yesJournal of Medical Sciences
Background: Diagnosing peripheral pulmonary lesions using a traditional bronchoscope is difficult. Reports on the learning experience for Veran's SPiN electromagnetic navigation bronchoscopy (ENB) for the diagnosis of pulmonary lesions are limited.
Yuan-Ming Tsai   +5 more
doaj   +1 more source

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