نتایج جستجو برای: مدل lur

تعداد نتایج: 120187  

Journal: :Remote Sensing 2022

High spatial resolution information on urban air pollution levels is unavailable in many areas globally, partially due to the high input data needs of existing estimation approaches. We introduced a computer vision method estimate annual means for from street-level images. used mean estimates NO2 and PM2.5 concentrations locally calibrated models as labels London, New York, Vancouver allow comp...

Journal: :Environmental science & technology 2014
Yasuyuki Akita Jose M Baldasano Rob Beelen Marta Cirach Kees de Hoogh Gerard Hoek Mark Nieuwenhuijsen Marc L Serre Audrey de Nazelle

In recognition that intraurban exposure gradients may be as large as between-city variations, recent air pollution epidemiologic studies have become increasingly interested in capturing within-city exposure gradients. In addition, because of the rapidly accumulating health data, recent studies also need to handle large study populations distributed over large geographic domains. Even though sev...

2012
Michelle Wilhelm Jo Kay Ghosh Jason Su Myles Cockburn Michael Jerrett Beate Ritz

BACKGROUND Numerous studies have linked criteria air pollutants with adverse birth outcomes, but there is less information on the importance of specific emission sources, such as traffic, and air toxics. OBJECTIVES We used three exposure data sources to examine odds of term low birth weight (LBW) in Los Angeles, California, women when exposed to high levels of traffic-related air pollutants d...

Journal: :Transactions of the Society of Instrument and Control Engineers 1987

Journal: :International Journal of Mechanical Sciences 2021

The mechanical response of an advanced high strength and corrosion resistant 10 % Cr nanocomposite steel (ASTM A1035CS Grade 120) is measured under uniaxial tension compression at the strain rates 10−4 s−1, 10-2 s-1, 100 700 3000 s−1. experiments are performed 22 °C as well 80 to investigate material behavior expected temperature rise due adiabatic deformation 15 strain. Additionally, different...

2007
Chunyu Yang Qingling Zhang Linna Zhou

In this paper, we consider Lur’e type differential-algebraic systems (LDS) and introduce the concept of strongly absolute stability. Such a notion is a generalization of absolute stability for Lur’e type standard state-space systems (LSS). By a Lur’e type Lyapunov function, we derive an LMI based stability criterion for LDS to be strongly absolutely stable. Using extended strictly positive real...

2013
Ryan W. Allen Enkhjargal Gombojav Baldorj Barkhasragchaa Tsogtbaatar Byambaa Oyuntogos Lkhasuren Ofer Amram Tim K. Takaro Craig R. Janes

Epidemiologic studies have consistently reported associations between outdoor fine particulate matter (PM2.5) air pollution and adverse health effects. Although Asia bears the majority of the public health burden from air pollution, few epidemiologic studies have been conducted outside of North America and Europe due in part to challenges in population exposure assessment. We assessed the feasi...

2013
Zev Ross Kazuhiko Ito Sarah Johnson Michelle Yee Grant Pezeshki Jane E Clougherty David Savitz Thomas Matte

BACKGROUND Recent epidemiological studies have examined the associations between air pollution and birth outcomes. Regulatory air quality monitors often used in these studies, however, were spatially sparse and unable to capture relevant within-city variation in exposure during pregnancy. METHODS This study developed two-week average exposure estimates for fine particles (PM2.5) and nitrogen ...

امروزه کیفیت هوای شهرهای بزرگ یکی از معضلات و چالش‌های اساسی کشورهای توسعه‌یافته و درحال‌توسعه است. در این بین، پیدایش و شدت پدیدة آلودگی در شهرها از عوامل گوناگونی مانند منابع آلودگی، عوامل هواشناسی و واکنش‌های شیمیایی بین آلاینده‌ها تأثیر می‌پذیرد. برای مدل‌سازی تمرکز آلاینده‌ها در محیط‌های شهری مدل‌های متفاوتی وجود دارد که در دو گروه مدل‌های بر پایة متد پخش و مدل‌های رگرسیون کاربری اراضی (LU...

Journal: :Atmosphere 2023

Functional data are generally curves indexed over a time domain, and land-use regression (LUR) is promising spatial technique for generating high-resolution estimation of retrospective long-term air pollutants. We developed methodology the novel functional (FLUR) model, which provides temporal estimations Long-term fine particulate matter (PM2.5) in megacity Tehran, Iran, was used as practical ...

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