Application of Tracer Test in Survey of Hydraulic Connection between Water Gushing and Fracture Water in Karst Tunnel – Taking Zhongjiashan as an Example

2014 ◽  
Vol 1006-1007 ◽  
pp. 115-120
Author(s):  
Xiang Wen Zhang ◽  
Tao Wang ◽  
Sheng Gao Cheng
Keyword(s):  
Fracture Zone ◽  
Tracer Test ◽  
Karst Tunnel ◽  
Supply Source ◽  
Fluorescent Whitening Agent ◽  
Whitening Agent ◽  
Tectonic Fracture ◽  
Import And Export ◽  
Underground River ◽  
The Right

The field tracer test is dropping quantitative tracer materials in the entrance of ponor upstream and to monitor online concentration of tracer materials in the main export of underground river downstream, and then deduce the type of groundwater pipe and the source of supply according to the concentration. This thesis takes the landslide areas in highways across form Quanzhou to Nanning and in tunnels connecting Ji’an with Zhongjiashan in Lianhua (a town in Pingxiang) as the research object, explores the supply source of tunnel water, meanwhile uses three tracer materials of different nature, namely the fluorescein sodium, fluorescent whitening agent and rhodamine, to place 4 drop points and 3 receiving points within 20 square meters of the surveyed area, to conduct groundwater tracer test. The test shows that there is no obvious connection between tunnel water gushing and F5 fracture main ditch surface water as well as F5 tectonic fracture zone; Fault F2 has good conductivity, and the gushing water in the right hole in the import and export of tunnel is related with F2 fault tectonic fracture zone.

The Effect of Fluorescent Whitening Agent on the Coated Ink-Jet Printing Paper

2011 ◽  
Vol 183-185 ◽  
pp. 1692-1695
Author(s):  
Wen Hua Gao ◽  
Ke Fu Chen ◽  
Ren Dang Yang ◽  
Fei Yang ◽  
Xiao Bin Chen
Keyword(s):  
Great Influence ◽  
Chromatic Aberration ◽  
Coated Paper ◽  
Fluorescent Whitening Agent ◽  
Ink Jet Printing ◽  
Whitening Agent ◽  
Ink Jet ◽  
Color Density ◽  
Jet Printing ◽  
Printing Paper

Fluorescent whitening agent is relatively small dosage in the coating, but it has great influence on the properties of the coating and ink-jet printing qualities. With the increase of fluorescent whitening agent dosage, the PH of the coating rose but the viscosity was hardly to change. The brightness of coated ink-jet printing paper and color density of the printing image firstly presented the trend of increasing then decreasing. What’s more, when the brightness of the coated paper achieved to the maximum, color density and contact angle properties were the largest. Chromatic aberration property of the image reduced from 1.87 to 1.75, when the addition of fluorescent whitening agent rose from 0.1% to 0.5%. While the dosage was rose to 0.9%, chromatic aberration increased to 2.15. The gloss of coated paper decreased with the dosage of fluorescent whitening agent increasing. In sum, fluorescent whitening agent can enhance the brightness of the coated paper as well as the printing properties. The results show that the best brightness and printing qualities of coated ink-jet printing paper are obtained, when the fluorescent whitening agent is 0.5%( relative to pigment).

scholarly journals Analysis of Cavities Characteristics in the Semar - Kiskendo Caves System, Jonggrangan Karst Area, Kulon Progo, Indonesia

2019 ◽  
Vol 125 ◽  
pp. 01016
Author(s):  
Romza Fauzan Agniy ◽  
Risma Sari Septianingrum ◽  
Ariel Seto Adinugraha ◽  
Qodri Alghozali ◽  
Bagas Aditya ◽  
...  
Keyword(s):  
Water Source ◽  
Average Diameter ◽  
Tracer Test ◽  
Karst Area ◽  
Survey Method ◽  
Cave System ◽  
Underground River

The Kiskendo Cave System is a system that has many benefits, including as a tourist site and water source. One of the systems in the upstream of Kiskendo Cave is the Semar-Kiskendo Caves system. This system is estimated to greatly affect the condition of the Kiskendo cave system because it is connected to the allogenic river which contributes to recharge from outside Jonggrangan Karst Area. The purpose of this research was 1) to find out the characteristics of the Semar Cave cavities and 2) to analyze the connectivity and characteristics of cavities in the Semar - Kiskendo Caves system. This research employed a survey method by mapping the cave to answer the first problem and conducting a tracer test of underground river stream to answer the second problem. The results showed that the Semar Cave cavity that could be mapped was 158.2 meters long, the total volume of the cave was 1,220.6 m3, and the average diameter of the cave cavity was 2.8 meters. The results of second study using the tracer test showed the connection between Semar Cave and the underground river in Kiskendo Cave, and the cavities had a characteristic of a single conduit which was sufficiently developed.

scholarly journals Falsified Medicines Directive: Are We Heading in the Right Direction?

2017 ◽  
Vol 1 ◽  
pp. maapoc.0000011
Author(s):  
Roberto Frontini
Keyword(s):  
Supply Chain ◽  
Human Resources ◽  
Positive Outcome ◽  
Unique Identifier ◽  
Supply Source ◽  
Falsified Medicines ◽  
Human Use ◽  
Safety Features ◽  
The Right

Falsified medicines for human use are an increasing problem in Europe. The Falsified Medicines Directive (FMD) 2011/62/EU provides measures to prevent the entry of falsified medicines into the legal supply chain by requiring the placing of safety features consisting of a unique identifier (Ul) and an anti-tampering device (ATD). Some concerns have arisen from patients regarding the effectiveness of UI and ATD in terms of safety. In contrast, the relevance of the supply source as a key point for patients and pharmacists, especially in hospitals, has not been sufficiently considered by the FMD. Endorsing more Good Procurement Practices and Good Distribution Practices may be more effective. The implementation of the FMD in hospitals is wasting human resources and increasing costs, which will likely result in a poor positive outcome. At both European and national levels, it is now urgent to mitigate the consequences of the FMD by updating the legislation.

Photochemical studies of a sulphonated derivative of 1,3-Diphenyl-2-pyrazoline

1975 ◽  
Vol 28 (9) ◽  
pp. 2083 ◽  
Author(s):  
IH Leaver ◽  
GC Ramsay ◽  
LJ Stephens
Keyword(s):  
Aqueous Solution ◽  
Vinyl Alcohol ◽  
Wool Fibre ◽  
Poly Vinyl Alcohol ◽  
Simulated Sunlight ◽  
Fluorescent Whitening Agent ◽  
Whitening Agent

The photochemistry of the sulphonated pyrazoline fluorescent whitening agent sodium 4-(3?-phenyl-2?-pyrazolin-1?-yl)benzenesulphonate has been examined in aqueous solution, in films of poly(vinyl alcohol) and in the wool fibre. Photooxidation to give the pyrazole occurs almost quantitatively in solution, but accounts for only half of the photoproducts formed in the polymer. In the wool fibre, pyrazole formation accounts for more than half of the pyrazoline whitener destroyed during exposure to simulated sunlight.

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