نتایج جستجو برای: temporal trends

تعداد نتایج: 385123  

ژورنال: سلامت و محیط زیست 2021

Background and Objective: This study was conducted to investigate the long-term temporal trends and spatial variations of ambient PM10, PM2.5, O3, concentrations in Tabriz city during the years 2006-2017. Materials and Methods: Real-time hourly concentrations of PM10, PM2.5, O3 measured at nine air quality monitoring stations (AQMSs) were obtained from the Tabriz Department of Environment (TDo...

2017
Saurav Ghosh Prithwish Chakraborty Elaine O. Nsoesie Emily Cohn Sumiko R. Mekaru John S. Brownstein Naren Ramakrishnan

In retrospective assessments, internet news reports have been shown to capture early reports of unknown infectious disease transmission prior to official laboratory confirmation. In general, media interest and reporting peaks and wanes during the course of an outbreak. In this study, we quantify the extent to which media interest during infectious disease outbreaks is indicative of trends of re...

2010
Masa-aki Fukuwaka Nancy D. Davis Tomonori Azumaya Toru Nagasawa

We estimated bias-corrected mean fork lengths of gillnet-caught chum salmon using a size selectivity estimate of the gillnet to test how the bias correction affects the estimated temporal pattern of chum salmon body size, during 1971–1994 and 1994–2007. Results showed bias-corrected mean fork lengths were smaller than uncorrected means. Therefore, when examining ontogenetic changes in fish size...

2017
Yefeng Pan Liming Li Xun Jiang Gan Li Wentao Zhang Xinyue Wang Andrew P. Ingersoll

The Lorenz energy cycle is widely used to investigate atmospheres and climates on planets. However, the long-term temporal variations of such an energy cycle have not yet been explored. Here we use three independent meteorological data sets from the modern satellite era, to examine the temporal characteristics of the Lorenz energy cycle of Earth's global atmosphere in response to climate change...

2007
Yasufumi Takama

A system for extracting and visualizing trend information about earthquakes from tagged corpus, which is distributed by a Workshop on Multimodal Summarization for Trend Information (MuST), is proposed. The topic of earthquakes does not contain only temporal trends, which are main concerns of typical topics such as gas price and stock price movement, but also spatial trends including the seismic...

Journal: :CoRR 2017
Kaori Abe Teppei Suzuki Shunya Ueta Akio Nakamura Yutaka Satoh Hirokatsu Kataoka

The paper presents a novel concept that analyzes and visualizes worldwide fashion trends. Our goal is to reveal cutting-edge fashion trends without displaying an ordinary fashion style. To achieve the fashion-based analysis, we created a new fashion culture database (FCDB), which consists of 76 million geo-tagged images in 16 cosmopolitan cities. By grasping a fashion trend of mixed fashion sty...

ژورنال: علوم آب و خاک 2018

In this study, the trends of changes of the standardized precipitation index in a 12-month timescale (SPI-12) and seasonal and annual precipitation were investigated in 21 humid and semi-arid stations of Iran during the 1976-2014 time period. After removing the serial correlation of some series, the trend of precipitation and SPI-12 was detected using the Mann-Kendall nonparametric trend test. ...

2016
Freddie Ian Bray Steinar Tretli

This thesis examines the utility of temporal studies of cancer in practice, particularly from the perspective of analyses of the three underlying time components, age, period of event and birth cohort. This enquiry encompasses a review of temporal studies and routine data sources, as well as a more critical appraisal of the strategies available for APe analysis and presentation. Specific method...

2003
Charu C. Aggarwal

ABSTRACT In recent years, the progress in hardware technology has made it possible for organizations to store and record large streams of transactional data. This results in databases which grow without limit at a rapid rate. This data can often show important changes in trends over time. In such cases, it is useful to understand, visualize and diagnose the evolution of these trends. When the d...

Journal: :C&RL 2011
Shun Han Rebekah Wong T. D. Webb

Shun Han Rebekah Wong is Assistant Librarian in the Multimedia Services Section and T.D. Webb is previous University Librarian, both at Hong Kong Baptist University Library; e-mail: rebekahw@hkbu. edu.hk, [email protected]. Sincere thanks go to Dr. Tong Chong Sze (previous Academic Registrar, HKBU) and Mr. Manson Yiu (Executive Officer, Academic Registry, HKBU). Without their cooperation, thi...

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