Rational design of pore structure for carbon aerogels to significantly increase adsorption of tetracycline from water using batch and fixed-bed operation

2021 ◽  
Author(s):  
Wen-Cui Xu ◽  
Lu-Bin Zhong ◽  
Zai-Dong Shao ◽  
Shuai Dou ◽  
Liang Yu ◽  
...  
Keyword(s):  
Pore Structure ◽  
Adsorption Capacity ◽  
Rational Design ◽  
Fixed Bed ◽  
Three Dimensional ◽  
Cost Effective ◽  
Carbon Aerogels ◽  
Cost Effective Method

Three-dimensional (3D) adsorption materials have attracted ever-increasing interest as a cost-effective method to remove antibiotics from water. However, how to effectively enhance the adsorption capacity of the adsorbents is still...

Removal of VOCs Using Sludge-Based Adsorbents

2012 ◽  
Vol 599 ◽  
pp. 305-308 ◽  
Author(s):  
Ping Fang ◽  
Chao Ping Cen ◽  
Hong Tao Zhang ◽  
Zi Jun Tang ◽  
Ding Sheng Chen ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Physical Adsorption ◽  
Low Cost ◽  
Fixed Bed ◽  
Cost Effective ◽  
Langmuir Adsorption Isotherm ◽  
Fixed Bed Reactor ◽  
Dynamic Adsorption ◽  
Langmuir Adsorption ◽  
Isotherm Equations

Efficient and cost-effective sludge-based adsorbents were developed and the adsorption of VOCs on the sludge-based adsorbents was studied in a fixed bed reactor. The results indicate that the adsorption of VOCs on sludge-based adsorbents is typical physical adsorption, the dynamic adsorption capacity of VOCs on adsorbents sharply increases as the VOCs concentration is increased at first, then increasing gradually, at last retains stable with the change of VOCs concentration. The dynamic adsorption capacity of sludge-based adsorbents for VOCs is O-Xylene > Butylcetate > Toluene > Ethylacetate > Benzene > Propanone > n-Hexane, the maximum dynamic adsorption capacity is 0.247, 0.225, 0.192, 0.186, 0.180, 0.176, 0.133g/g, respectively. Meanwhile the adsorption of VOCs on sludge-based adsorbents corresponds to the Langmuir adsorption isotherm equations. The sludge-based adsorbent is a low-cost alternative to activated carbon for VOCs treatment, and this technology is a promising method for the VOCs removal.

scholarly journals Rapid Prototyping Technology in Orbital Floor Reconstruction: Application in Three Patients

2014 ◽  
Vol 7 (2) ◽  
pp. 143-146 ◽  
Author(s):  
Christopher G. T. Lim ◽  
Duncan I. Campbell ◽  
Don M. Clucas
Keyword(s):  
Rapid Prototyping ◽  
Traumatic Injury ◽  
Three Dimensional ◽  
Cost Effective ◽  
Titanium Plate ◽  
Anatomical Structures ◽  
Orbital Reconstruction ◽  
Reconstruction Surgery ◽  
Cost Effective Method ◽  
Orbital Floor Reconstruction

Rapid prototyping entails the fabrication of three-dimensional anatomical models which provide an accurate and cost-effective method to visualize complex anatomical structures. Our unit has been using this to assist in the diagnosis, planning, and preoperative titanium plate adaptation for orbital reconstruction surgery following traumatic injury. The aim of this article is to demonstrate the potential clinical and cost-saving benefits of this technology.

scholarly journals Optimization of Cost-Effective and Reproducible Flexible Humidity Sensors Based on Metal-Organic Frameworks

Sensors ◽  
2020 ◽  
Vol 20 (23) ◽  
pp. 6981
Author(s):  
Victor Toral ◽  
Florin C. Loghin ◽  
Antonio Rodríguez-Diéguez ◽  
Alejandro Lapresta-Fernández ◽  
Diego P. Morales ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Three Dimensional ◽  
Cost Effective ◽  
Film Deposition ◽  
Flexible Substrates ◽  
Humidity Sensors ◽  
Cost Effective Method ◽  
Highly Sensitive ◽  
Metal Organic

In this letter, we present the extension of a previous work on a cost-effective method for fabricating highly sensitive humidity sensors on flexible substrates with a reversible response, allowing precise monitoring of the humidity threshold. In that work we demonstrated the use of three-dimensional metal-organic framework (MOF) film deposition based on the perylene-3,4,9,10-tetracarboxylate linker, potassium as metallic center and the interspacing of silver interdigitated electrodes (IDEs) as humidity sensors. In this work, we study one of the most important issues in efficient and reproducible mass production, which is to optimize the most important processes’ parameters in their fabrication, such as controlling the thickness of the sensor’s layers. We demonstrate this method not only allows for the creation of humidity sensors, but it also is possible to change the humidity value that changes the actuator state.

scholarly journals INTEGRATION OF ENGINEERED “SPARK-CELL” SPHEROIDS FOR OPTICAL PACING OF CARDIAC TISSUE

2021 ◽  
Author(s):  
Christianne Chua ◽  
Julie Han ◽  
Weizhen Li ◽  
Wei Liu ◽  
Emilia Entcheva
Keyword(s):  
Genetic Modification ◽  
Drug Testing ◽  
Cardiac Tissue ◽  
Three Dimensional ◽  
Cost Effective ◽  
Cardiac Cells ◽  
Human Embryonic Kidney Cells ◽  
Cell Spheroids ◽  
Cost Effective Method ◽  
Stimulation Of

AbstractOptogenetic methods for pacing of cardiac tissue can be realized by direct genetic modification of the cardiomyocytes to express light-sensitive actuators, such as channelrhodopsin-2, ChR2, or by introduction of light-sensitized non-myocytes that couple to the cardiac cells and yield responsiveness to optical pacing. In this study, we engineer three-dimensional “spark cells” spheroids, composed of ChR2-expressing human embryonic kidney cells, and characterize their morphology as function of cell density and time. These “spark-cell” spheroids are then deployed to demonstrate site-specific optical pacing of human stem-cell-derived cardiomyocytes (hiPSC-CMs) in 96-well format using non-localized light application and all-optical electrophysiology. We show that the spheroids can be handled using liquid pipetting and can confer optical responsiveness of cardiac tissue earlier than direct viral or liposomal genetic modification of the cardiomyocytes, with 24% providing reliable stimulation of the iPSC-CMs within 6 hours and >80% within 24 hours. Our results demonstrate a scalable, cost-effective method to achieve contactless optical stimulation of cardiac cell constructs that can be integrated in a robotics-amenable workflow for high-throughput drug testing.GRAPHICAL ABSTRACT

Magnesium carbonate basic coating on cotton cloth as a novel adsorbent for the removal of uranium

RSC Advances ◽  
2015 ◽  
Vol 5 (30) ◽  
pp. 23144-23151 ◽  
Author(s):  
Lei Zhang ◽  
Xiaoyan Jing ◽  
Rumin Li ◽  
Qi Liu ◽  
Jingyuan Liu ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Cost Effective ◽  
Magnesium Carbonate ◽  
Cotton Cloth ◽  
Maximum Adsorption Capacity ◽  
Cost Effective Method

A magnesium carbonate basic coating on a cotton cloth was prepared by a facile and cost-effective method for uranium(vi) adsorption. The maximum adsorption capacity toward uranium is 370 mg g−1, promoting a promising and effective adsorbent for practical uranium(vi) adsorption.

Precordial Vibrations

2014 ◽  
pp. 201-220
Author(s):  
Mikko Paukkunen ◽  
Matti Linnavuo
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Cardiovascular Diseases ◽  
Physical Examination ◽  
Cardiovascular System ◽  
Three Dimensional ◽  
Cost Effective ◽  
Cost Effective Method ◽  
Dimensional Measurements ◽  
Artery Disease

In the era of medicine, the heart and cardiovascular system has become one of the standard observation targets. Palpation and auscultation in the precordial area is performed as part of the regular physical examination to detect possible cardiovascular and pulmonary problems. However, due to the large number of people suffering from cardiovascular problems, labor-intensive methods such as auscultation might be inefficient in preventive cardiovascular condition screening. Seismocardiography (SCG) could have the potential to be a part of the solution to this problem. SCG is one of many modalities of cardiac-induced vibration measurements, and it has been shown to be of use in detecting coronary artery disease and assessing myocardial contractility. Lately, due to advances in sensor technologies, the SCG measurement is being developed by introducing three-dimensional measurements. Three-dimensional approach is considered to yield more information about the cardiovascular system than any single uniaxial approach. In conclusion, SCG seems to have the potential to offer a complementary view to cardiovascular function and a cost-effective method for screening of cardiovascular diseases. SCG is explored in this chapter.

Three-dimensional recording of archaeological remains in the Altai Mountains

Antiquity ◽  
2012 ◽  
Vol 86 (333) ◽  
pp. 884-897 ◽  
Author(s):  
Gertjan Plets ◽  
Wouter Gheyle ◽  
Geert Verhoeven ◽  
Jeroen De Reu ◽  
Jean Bourgeois ◽  
...  
Keyword(s):  
3D Imaging ◽  
Rock Art ◽  
Three Dimensional ◽  
Cost Effective ◽  
Archaeological Research ◽  
Altai Mountains ◽  
Archaeological Remains ◽  
Oil Pipeline ◽  
Cost Effective Method

In the course of their research campaign in Siberia, Ghent University archaeologists have developed a simple and cost effective method for the rapid 3D imaging of rock art, standing stelae and surface monuments. Their procedure will undoubtedly have a big role to play in archaeological research in advance of the oil pipeline expected soon.

scholarly journals 3D RECONSTRUCTION OF ON-/OFFSHORE WIND TURBINES FOR MANUAL AND COMPUTATIONAL VISUAL INSPECTION

2020 ◽  
Vol XLIII-B2-2020 ◽  
pp. 1121-1127
Author(s):  
T. Möller ◽  
D. Brün ◽  
D. Langenkämper ◽  
R. van Kevelaer ◽  
T. W. Nattkemper
Keyword(s):  
Wind Energy ◽  
Fossil Fuels ◽  
Three Dimensional ◽  
Digital Camera ◽  
Wind Farms ◽  
Cost Effective ◽  
Offshore Wind ◽  
Three Dimensional Model ◽  
Cost Effective Method ◽  
Interdisciplinary Research Project

Abstract. The expansion of off-/onshore wind farms plays a key role in the transformation of energy production from burning of fossil fuels and nuclear energy to sustainable and safe power generation. However, the wind energy sector is permanently under strong cost pressure and the maintenance of the turbines is currently still carried out quite expensively with human industrial climbers. In this article, we present the results of an interdisciplinary research project on the automation of various image-based inspection steps. Since the use of unmanned aerial vehicles (UAV) is a problem especially offshore, we present here a simple, cost-effective method to obtain a three-dimensional model of a wind energy plant using solely a digital camera equipped with a sensor array to use it for the detection and management of damages and abnormalities. A first approach to detect abnormalities on the surface with deep learning methods achieved an F1-score of about 95%.

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