Low-cost approach to increase the analysis throughput of bar adsorptive microextraction (BAµE) combined with environmentally-friendly renewable sorbent phase of recycled diatomaceous earth

Antibiotic resistance profiling (ARP) is a potentially useful method for distinguishing faecal bacteria according to host source. This phenotypic approach has cost benefits over genotypic methods, but existing protocols are time-consuming and manual data handling is open to human error. A simplified, low-cost approach to the ARP technique was developed that used automated data recording techniques combined with simple statistical analyses to compare isolates of the genus Enterococcus from various faecal sources. An initial battery of 21 antibiotics (at up to four concentrations) was chosen for source discrimination. Images of growth or non-growth in microplate wells were stored as bitmaps and converted to binary data to form a database of known antibiotic resistance profiles. Discriminant function analysis (DFA) showed that the average rate of isolates correctly classified by the database (wastewater vs non-wastewater) was 86%. Once the more discriminating antibiotics and their concentrations had been identified, it was possible to reduce the number of tests from 80 to 18 whilst increasing the number of correctly classified human isolates. ARP could offer a low-cost and rapid means of identifying sources of faecal pollution. As such, the technique may be of particular benefit to developing countries, where water quality may have a significant impact on health and where cost is a major factor when choosing environmental management technology.

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Evaluation of an Alternative Low Cost Approach for SEE Assessment of a SoC

2017 17th European Conference on Radiation and Its Effects on Components and Systems (RADECS) ◽

10.1109/radecs.2017.8696219 ◽

2017 ◽

Author(s):

F. Bezerra ◽

D. Dangla ◽

F. Manni ◽

J. Mekki ◽

D. Standarovski ◽

...

Keyword(s):

Low Cost ◽

Cost Approach

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Multiscale additive manufacturing of polymers using 3D photo-printable self-assembling ionic liquid monomers

Molecular Systems Design & Engineering ◽

10.1039/c8me00106e ◽

2019 ◽

Vol 4 (3) ◽

pp. 580-585 ◽

Cited By ~ 2

Author(s):

Bineh G. Ndefru ◽

Bryan S. Ringstrand ◽

Sokhna I.-Y. Diouf ◽

Sönke Seifert ◽

Juan H. Leal ◽

...

Keyword(s):

Ionic Liquid ◽

Additive Manufacturing ◽

Self Assembly ◽

Low Cost ◽

Low Resolution ◽

Top Down ◽

Bottom Up ◽

Cost Approach ◽

Self Assembling ◽

Nanoscale Features

Combining bottom-up self-assembly with top-down 3D photoprinting affords a low cost approach for the introduction of nanoscale features into a build with low resolution features.

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Novel, Low Cost Approach to Digitizing Tablet Hardness Values

Journal of Pharmaceutical Sciences ◽

10.1002/jps.2600640942 ◽

1975 ◽

Vol 64 (9) ◽

pp. 1578-1579

Author(s):

Ralph E. Bertermann

Keyword(s):

Low Cost ◽

Cost Approach ◽

Tablet Hardness ◽

Hardness Values ◽

Digitizing Tablet

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Application and Development of an Environmentally Friendly Blast Hole Plug for Underground Coal Mines

Shock and Vibration ◽

10.1155/2018/6964386 ◽

2018 ◽

Vol 2018 ◽

pp. 1-12

Author(s):

Donghui Yang ◽

Yixin Zhao ◽

Zhangxuan Ning ◽

Zhaoheng Lv ◽

Huafeng Luo

Keyword(s):

Split Hopkinson Pressure Bar ◽

Low Cost ◽

Blast Hole ◽

Environmentally Friendly ◽

Test System ◽

Industrial Test ◽

Labor Intensity ◽

Rock Blasting ◽

Hopkinson Pressure Bar ◽

The Impact

Drilling and blasting technology is one of the main methods for pressure relief in deep mining. The traditional method for blasting hole blockage with clay stemming has many problems, which include a large volume of transportation, excess loading time, and high labor intensity. An environmentally friendly blast hole plug was designed and developed. This method is cheap, closely blocks the hole, is quickly loaded, and is convenient for transportation. The impact test on the plug was carried out using an improved split Hopkinson pressure bar test system, and the industrial test was carried out in underground tunnel of coal mine. The tests results showed that, compared with clay stemming, the new method proposed in this paper could prolong the action time of the detonation gas, prevent premature detonation gas emissions, reduce the unit consumption of explosives, improve the utilization ratio, reduce the labor intensity of workers, and improve the effect of rock blasting with low cost of rock breaking.

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