Testing the Correlation Between the Vertical Crustal Movements and Temperature Changes on the Example of Selected Vectors Permanent GNSS Stations

2017 ◽  
Author(s):  
Kamil Kowalczyk
Keyword(s):  
Air Temperature ◽  
Control Network ◽  
Temperature Changes ◽  
Crustal Movements ◽  
Daily Change ◽  
Daily Difference ◽  
Geodetic Control ◽  
The Relationship ◽  
Vertical Crustal Movements

In the last years air temperature increasing gradual. It also changes depending on the area: metropolitan, rural. The temperature changes directly affects the expansion of materials of which are made geodetic control network and support infrastructure. This may be influenced on the daily change in the amount determined for permanent GNSS stations. The main aim of the article is to examine the relationship between height changes and temperature changes. Daily difference in height between the selected stations Polish ASG EUPOS and the temperature in the vicinity of the stabilization of these stations data were used. Three year period was taken to the analysis. The results give a view on the article thesis.

Application of PPP Solution to Determine the Absolute Vertical Crustal Movements: Case Study for Northeastern Europe

2017 ◽  
Author(s):  
Kamil Kowalczyk ◽  
Janusz Bogusz
Keyword(s):  
Time Series ◽  
Vertical Movements ◽  
Crustal Movements ◽  
Northeastern Poland ◽  
The Absolute ◽  
Set Up ◽  
Changes Over Time ◽  
The Relationship ◽  
Vertical Crustal Movements

To estimate the relationship between vertical movements of the Earth’s crust, geoid temporal changes and Mean Sea Level (MSL) variations, a knowledge about the absolute (determined from satellite and space techniques) height changes over time is required. In this paper, we give an idea of determining the height changes with a use of Vertical Switching Edge Detection (VSED) algorithm. On the basis of the least squares estimation, the VSED method detects the discontinuities in time series and determines the values of jumps at the same time. We used the time series from PPP (Precise Point Positioning) solution obtained in NGL (Nevada Geodetic Laboratory) using satellite data gathered at more than 50 permanent stations located in Latvia, Lithuania and northeastern Poland. The minimum time span of data was set up to 3 years. Data were pre-analyzed by removing outliers and interpolating small gaps. The obtained results give an overview of a possibility of the proposed method to be used and the ongoing vertical movements on the area we considered.

scholarly journals Research on the Ignition Height and Reaction Flame Temperature of PTFE/Al/Si/CuO with Different Mass Ratios of PTFE/Si

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3464
Author(s):  
Xuan Zou ◽  
Jingyuan Zhou ◽  
Xianwen Ran ◽  
Yiting Wu ◽  
Ping Liu ◽  
...  
Keyword(s):  
Energy Release ◽  
High Speed ◽  
Flame Temperature ◽  
Sintering Process ◽  
Release Process ◽  
Reactive Material ◽  
Temperature Changes ◽  
Release Capacity ◽  
Mass Ratios ◽  
The Relationship

Recent studies have shown that the energy release capacity of Polytetrafluoroethylene (PTFE)/Al with Si, and CuO, respectively, is higher than that of PTFE/Al. PTFE/Al/Si/CuO reactive materials with four proportions of PTFE/Si were designed by the molding–sintering process to study the influence of different PTFE/Si mass ratios on energy release. A drop hammer was selected for igniting the specimens, and the high-speed camera and spectrometer systems were used to record the energy release process and the flame spectrum, respectively. The ignition height of the reactive material was obtained by fitting the relationship between the flame duration and the drop height. It was found that the ignition height of PTFE/Al/Si/CuO containing 20% PTFE/Si is 48.27 cm, which is the lowest compared to the ignition height of other Si/PTFE ratios of PTFE/Al/Si/CuO; the flame temperature was calculated from the flame spectrum. It was found that flame temperature changes little for the same reactive material at different drop heights. Compared with the flame temperature of PTFE/Al/Si/CuO with four mass ratios, it was found that the flame temperature of PTFE/Al/Si/CuO with 20% PTFE/Si is the highest, which is 2589 K. The results show that PTFE/Al/Si/CuO containing 20% PTFE/Si is easier to be ignited and has a stronger temperature destruction effect.

scholarly journals Impact of air temperature and drug concentration on liquid emission from elastomeric pumps

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Tomoya Abe ◽  
Kazumasa Matsuzaka ◽  
Toshiaki Nakayama ◽  
Masanobu Otsuka ◽  
Atsunobu Sagara ◽  
...  
Keyword(s):  
Air Temperature ◽  
Anticancer Agents ◽  
Saline Solution ◽  
Emission Rate ◽  
Glucose Solution ◽  
Sufficient Information ◽  
Electronic Control ◽  
Rate Relationship ◽  
The Relationship ◽  
Total Fluid

Abstract Background Elastomeric pumps (EPs) are devices that allow quantitative and continuous drug administration without the need for electronic control, and they are used by being filled with anticancer agents. Although the package inserts of several manufacturers that provide EPs describe the relationship between the flow rate per unit time and temperature, the solution is only saline solution or 5% glucose solution, and data on anticancer drugs have not been published. In this study, we focused on 5-fluorouracil (5-FU), a drug frequently used in cancer chemotherapy, and examined the effect of changes in standard of EPs and temperature on drug emission. Methods We evaluated the EP data of patients treated with Baxter Infusor® LV5 and SV2.5 in terms of emission rate, relationship between 5-FU prescription amount and emission rate, and relationship between emission rate and monthly air temperature in LV5 and SV2.5. The number of EPs sampled in the study was N = 5708 (n = 2988 for LV5 and n = 2720 for SV2.5). Results In LV5, the emission rate varied from 88 to 97% (median 94.0%), whereas in SV2.5, the emission rate was observed as 97 to 98% (median 97.4%). The 5-FU prescription amount and the emission rate were not correlated in LV5 and SV2.5, respectively (LV5; y = − 0.0015x + 97.305, R2 = 0.0226, SV2.5; y = − 0.001x + 100.25, R2 = 0.0466). LV5 showed a higher emission rate in the months with higher air temperature and a lower emission rate in the month with lower air temperature. In addition, LV5 showed a significant reduction in emission rate compared with SV2.5 in all months (P < 0.001). Conclusions In this study, we clarified that air temperature is an important factor that affects the drug emission of EPs. Therefore, it is necessary to examine the conditions for total fluid volume suitable for the air temperature in each region and to provide sufficient information to patients.

CHANGES IN MOISTURE, TEMPERATURE, AND QUALITY OF CORN SEED DURING HIGH-TEMPERATURE DRYING

1989 ◽  
Vol 69 (3) ◽  
pp. 749-761 ◽  
Author(s):  
ULRICH HERTER ◽  
JOSEPH S. BURRIS
Keyword(s):  
Seed Quality ◽  
Inbred Lines ◽  
Drying Time ◽  
Temperature Changes ◽  
Corn Seed ◽  
Seed Corn ◽  
Seed Moisture ◽  
The Relationship ◽  
High Temperature Drying

Mechanical drying has frequently caused injury in corn seed. Changes in seed moisture, temperature, and quality were determined for inbred lines A632, B73 and Mo17 to define the relationship between these variables. Ears harvested at ca. 48 and 38% seed moisture could be dried at 50 °C for 4–15 h and 18–24 h, respectively, before germination started to decline linearly with prolonged 50 °C drying. Drying time at 50 °C, seed moisture, or embryo moisture after 50 °C drying could be used equally well for prediction of seed quality. Seedling dry weights often declined even when seed was dried for only a few hours at 50 °C. Temperature measurements within seeds indicated that evaporation cooled the seed no more than 5 °C. Drying susceptibility of seed parents varied greatly between years.Key words: Moisture, temperature changes, seed corn, drying

Recent vertical crustal movements of the Carpatho-Balkan region

1981 ◽  
Vol 71 (1-4) ◽  
pp. 41-52 ◽  
Author(s):  
I. Joó ◽  
E. Csáti ◽  
P. Jovanović ◽  
M. Popescu ◽  
V.I. Somov ◽  
...  
Keyword(s):  
Crustal Movements ◽  
Balkan Region ◽  
Vertical Crustal Movements

Modeling air temperature changes in Northern Asia

2014 ◽  
Vol 122 ◽  
pp. 14-22 ◽  
Author(s):  
A. Onuchin ◽  
M. Korets ◽  
A. Shvidenko ◽  
T. Burenina ◽  
A. Musokhranova
Keyword(s):  
Air Temperature ◽  
Northern Asia ◽  
Temperature Changes
Sign in / Sign up

Export Citation Format

Share Document