Standard Guide for Interpretation of Standard Humidity Cell Test Results

10.1520/d8187 ◽  
2019 ◽  
Author(s):  
Keyword(s):  
Test Results ◽  
Humidity Cell ◽  
Cell Test

scholarly journals Design of Prototype System for Temperature and Humidity Control in Flour Storage

2017 ◽  
Vol 5 (2) ◽  
pp. 59-64
Author(s):  
Annisau Saidah
Keyword(s):  
Wheat Flour ◽  
Load Cell ◽  
Sensor Data ◽  
Prototype System ◽  
Mold Growth ◽  
Test Results ◽  
Linear Formula ◽  
Temperature And Humidity ◽  
Cell Test ◽  
First In First Out

Storage of wheat flour requires good temperature and humidity to avoid mold growth that can damage the nutrients in wheat flour. The temperatures and humidity required for proper storage are above temperatures and humidity below 60% RH. The method used in flour storage is FIFO (First In First Out) using a Load cell sensor as a marker for flour input. The incoming flour will input the time, location and amount of flour, so that it can be easily determined which flour will come out first. To facilitate monitoring of temperature, humidity and stock amount in flour storage in this study, sending monitoring data wirelessly using an internet network that can be accessed anywhere. The test results of this study show that the DHT22 sensor can measure temperature and humidity well, which has a RE (Relative Error) value of 0.5% temperature and 3.9% humidity compared to the HTC-1 measuring instrument. The load cell test compared to digital scales has an accurate value using a linear formula. In the QoS test, sending sensor data to the web server has a good value according to the ITU-T standard, namely delay <150ms

scholarly journals Cross hole sonic test results for analysis of pile load test

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Swapan Kunar Bagui ◽  
S. K. Puri ◽  
K. Subbiah
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Wide Band ◽  
Load Test ◽  
Test Results ◽  
Pile Capacity ◽  
Uniform Cross Section ◽  
Cell Test ◽  
Pile Load Test ◽  
Sonic Logging

AbstractQuality of concrete for pile can be checked using Cross-hole Sonic Logging (CSL) Test. A processing method wide-band CSL data is presented herein. First Time Arrival (FTA) is an important consideration. In pile capacity analysis or CSL analysis, it is assumed that pile cross section is uniform with uniform value of elastic modulus of concrete but in real practice both are non-uniform. The procedure identifies the location accuracy and further characterizes the features of the defect. FTA is used to find out the location of the distress in the pile. This method identifies the exact location of any void or defect inside the rebar cage of a drilled shaft. This method provides a significant improvement to current techniques used in quality control during construction of bridges. In this present paper, the analysis has been carried out based on uniform and non-uniform values of pile cross section and E value of concrete. Cross hole sonic and pile load test using O-Cell were carried out on same pile at 7 and 28 days of concreting. Same pipes were used for base grout after cross hole sonic test. These results were used to analyze O-cell test results based on a case study and presented in this paper. The distribution of skin frication and skin friction force has also been presented herein with both uniform and non-uniform cross section and E values of concrete. Based on the field test results and analysis a simplified methodology, has been proposed in this paper, for development of Equivalent Top Down Loading with consideration of elastic shortening of pile and surrounding soil for both cases i.e., uniform and non-uniform E values and pile cross sections.

scholarly journals Temporal Changes of Pyrite Oxidation Rate in Bolivian Sulphidic Mining Wastes

2019 ◽  
Vol 4 (4) ◽  
pp. 194-202
Author(s):  
Ferenc Móricz ◽  
Ferenc Mádai
Keyword(s):  
Oxidation Rate ◽  
Mine Drainage ◽  
Mine Waste ◽  
Pyrite Oxidation ◽  
Mining Industry ◽  
Metal Mobility ◽  
Seepage Water ◽  
Column Test ◽  
Humidity Cell ◽  
Cell Test

Since the 70's, when huge sulphidic open pits were developed, the acidic rock drainage (ARD) become the leader problem of the sulphidic mining industry. Although the recycling is an essential technology, it cannot cover the demand alone, thus mining activity needs to continue. Acidity in mine drainage commonly requires most of the attention, but the main problem is the caused elevated level of metal mobility and leaching, which are generated by the increased rates of sulphide weathering under acidic conditions. The Itos mine is a polymetallic vein deposit in Bolivia, had been mined for silver and tin until 1990, leaving behind much and huge tailings and mine waste heaps, where quite often the pyrite content exceeds 10 %. Serious ARD effects take place in the mine waste heaps. These processes can be well characterized with the pH 1 or 2 of the seepage water, which forms serious alteration in the waste itself and the neighbouring rocks. In three consecutive years, the pyrite oxidation rate was investigated on the same 7 samples by humidity cell test. 5-6 months pauses were left between the humidity cell test periods, which mimics the alternation of wet and dry periods, typical for the place. The results give much more information, than the oxidation rate in the individual test periods, showing the changes by time. This applied method gave good result to characterize the behaviour of the waste in long-term. The column test was complemented with mineralogical analyses, such as electron probe micro analysis. The mineralogical and column test analyses show, that the changes of the pyrite oxidation rate split the samples into three different groups, one where the oxidation rate decreases, second where it increases with time and the third where oxidation rate is maximal and stays stable for several years.

Optimisation of the cell cultivation methods in the embryonic stem cell test results in an increased differentiation potential of the cells into strong beating myocard cells

2008 ◽  
Vol 22 (7) ◽  
pp. 1789-1796 ◽  
Author(s):  
Ann De Smedt ◽  
Margino Steemans ◽  
Marlies De Boeck ◽  
Annelieke K. Peters ◽  
Bas-jan van der Leede ◽  
...  
Keyword(s):  
Stem Cell ◽  
Embryonic Stem Cell ◽  
Embryonic Stem ◽  
Test Results ◽  
Cell Cultivation ◽  
Differentiation Potential ◽  
Cell Test ◽  
Cultivation Methods

Retention and transport of arsenic, uranium and nickel in a black shale setting revealed by a long-term humidity cell test and sequential chemical extractions

2014 ◽  
Vol 363 ◽  
pp. 134-144 ◽  
Author(s):  
Changxun Yu ◽  
Ulf Lavergren ◽  
Pasi Peltola ◽  
Henrik Drake ◽  
Bo Bergbäck ◽  
...  
Keyword(s):  
Black Shale ◽  
Chemical Extractions ◽  
Humidity Cell ◽  
Cell Test
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