Investor Capabilities and Dynamic Exposure to Risk

2017 ◽  
Author(s):  
Knut N. Kjaer
Keyword(s):  
Dynamic Exposure

scholarly journals Assessment of the Dynamic Exposure to PM2.5 Based on Hourly Cell Phone Location and Land Use Regression Model in Beijing

2021 ◽  
Vol 18 (11) ◽  
pp. 5884
Author(s):  
Junli Liu ◽  
Panli Cai ◽  
Jin Dong ◽  
Junshun Wang ◽  
Runkui Li ◽  
...  
Keyword(s):  
Land Use ◽  
Exposure Assessment ◽  
Activity Pattern ◽  
Cell Phone ◽  
Total Population ◽  
Cell Phones ◽  
Land Use Regression ◽  
Pm2.5 Exposure ◽  
Dynamic Exposure ◽  
Pm2.5 Concentration

The spatiotemporal locations of large populations are difficult to clearly characterize using traditional exposure assessment, mainly due to their complicated daily intraurban activities. This study aimed to extract hourly locations for the total population of Beijing based on cell phone data and assess their dynamic exposure to ambient PM2.5. The locations of residents were located by the cellular base stations that were keeping in contact with their cell phones. The diurnal activity pattern of the total population was investigated through the dynamic spatial distribution of all of the cell phones. The outdoor PM2.5 concentration was predicted in detail using a land use regression (LUR) model. The hourly PM2.5 map was overlapped with the hourly distribution of people for dynamic PM2.5 exposure estimation. For the mobile-derived total population, the mean level of PM2.5 exposure was 89.5 μg/m3 during the period from 2013 to 2015, which was higher than that reported for the census population (87.9 μg/m3). The hourly activity pattern showed that more than 10% of the total population commuted into the center of Beijing (e.g., the 5th ring road) during the daytime. On average, the PM2.5 concentration at workplaces was generally higher than in residential areas. The dynamic PM2.5 exposure pattern also varied with seasons. This study exhibited the strengths of mobile location in deriving the daily spatiotemporal activity patterns of the population in a megacity. This technology would refine future exposure assessment, including either small group cohort studies or city-level large population assessments.

The Protection of Rubber against Atmospheric Ozone—Cracking

1958 ◽  
Vol 31 (5) ◽  
pp. 1015-1034 ◽  
Author(s):  
B. S. Biggs
Keyword(s):  
Present Status ◽  
Synthetic Polymer ◽  
Atmospheric Ozone ◽  
Considerable Effort ◽  
Extreme Resistance ◽  
Considerable Success ◽  
Differences Of Opinion ◽  
Dynamic Exposure ◽  
Fair Degree ◽  
Natural And Synthetic

Abstract The cracking of rubber by atmospheric ozone is now a well-known phenomenon and for a number of years rubber scientists and technologists have devoted considerable effort to combating it. While the differences of opinion and the confusion of data in this work are sometimes more conspicuous than the successes, nevertheless, there has been considerable success. In spite of the existence of large areas of uncertainty, much progress has been made. A new word, “antiozonant”, has been added to the vocabulary of the rubber man. The substances so designated, together with waxes already well known, enable the compounder to protect natural and synthetic rubbers against both static and dynamic exposure to a fair degree, and this in spite of the fact, now recognized, that certain urban atmospheres may contain much higher concentrations of ozone than were formerly considered normal. In addition, the synthetic polymer chemist has made available a number of commercial rubbers which, because they are saturated, are not at all vulnerable to ozone attack, and serve in many special applications in which extreme resistance to ozone is necessary. The purpose of this paper is to review the present status of the antiozone work.

Laboratory facility to create reference radon + thoron atmosphere under dynamic exposure conditions

2017 ◽  
Vol 166 ◽  
pp. 181-187 ◽  
Author(s):  
D. Pressyanov ◽  
K. Mitev ◽  
S. Georgiev ◽  
I. Dimitrova ◽  
J. Kolev
Keyword(s):  
Laboratory Facility ◽  
Dynamic Exposure ◽  
Exposure Conditions

In Vitro Dynamic Exposure Model For Air Delivery Of Nanomaterials To Cells

2010 ◽  
Author(s):  
Peter S. Thorne ◽  
Jong Sung Kim ◽  
Andrea Adamcakova-Dodd ◽  
Thomas M. Peters ◽  
Patrick T. O’Shaughnessy
Keyword(s):  
Exposure Model ◽  
Dynamic Exposure

Dynamic Exposure of Organisms and Passive Samplers to Hydrophobic Chemicals

2009 ◽  
Vol 43 (7) ◽  
pp. 2206-2215 ◽  
Author(s):  
Stéphane Bayen ◽  
Thomas L. ter Laak ◽  
Jacques Buffle ◽  
Joop L. M. Hermens
Keyword(s):  
Passive Samplers ◽  
Dynamic Exposure

First dynamic exposure results from an electron projection lithography tool

2003 ◽  
Vol 21 (6) ◽  
pp. 2686 ◽  
Author(s):  
Kazuaki Suzuki ◽  
Tomoharu Fujiwara ◽  
Shinichi Kojima ◽  
Noriyuki Hirayanagi ◽  
Takehisa Yahiro ◽  
...  
Keyword(s):  
Projection Lithography ◽  
Dynamic Exposure
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