The Experts below are selected from a list of 270 Experts worldwide ranked by ideXlab platform
Ranran Wang - One of the best experts on this subject based on the ideXlab platform.
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a high performance flexible and weavable asymmetric fiber shaped solid state supercapacitor enhanced by surface modifications of carbon fibers with carbon nanotubes
Journal of Materials Chemistry, 2016Co-Authors: Xiaoyu Lu, Ranran WangAbstract:To meet the demands of high energy storage and low productive cost as well as the ability to be incorporated into wearable electronics, we developed a flexible and weavable asymmetric fiber-shaped solid-state supercapacitor (a-FSSC) based on carbon fiber bundle@CNT–NiCo(OH)x (CF@CNC) and carbon fiber bundle@activated carbon (CF@AC) electrodes with increased operating voltage (1.4–1.6 V) and capacitance. For the positive electrode of CF@CNC, great electrochemical performance enhancement brought about by surface modifications with air plasma and carbon nanotube (CNT) coating is demonstrated. For the negative electrode of CF@AC, a facile and effective way of incorporating activated carbon into carbon fiber bundles is developed. The resultant assembled a-FSSC showed an areal energy and power density of 33.0 μW h cm−2 and 0.75 mW cm−2 at 1.6 V, which are better than those of most of the present fiber-shaped supercapacitors. The volumetric energy and power density of 0.84 mW h cm−3 and 19.1 mW cm−3 are also comparable to the reported results. Its long cycle life (100% capacitance retention after 8000 charge–discharge cycles) reveals its high electrochemical stability. High capacitance retention in the repeated bending (20% decay after 1000 bending times) and torsion (107% retention after 1000 twisting times) tests demonstrated the great flexibility, structural stability and potential utilization of the a-FSSC in wearable electronics. As a demonstration, a Woolen Fabric woven with three a-FSSCs connected in series can light a blue LED and be worn on the arm.
Mehmet Kitis - One of the best experts on this subject based on the ideXlab platform.
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Green textile production: a chemical minimization and substitution study in a Woolen Fabric production
Environmental Science and Pollution Research, 2020Co-Authors: Emrah Ozturk, Nazlı Caglar Cinperi, Mehmet KitisAbstract:This study aimed to decrease chemical costs and increase productivity and environmental performance by applying various practices for chemical minimization and substitution in an integrated textile mill producing Woolen textile Fabric. Detailed on-site process investigations and data collection studies were carried out in the mill. Process-based specific auxiliary chemical and dyestuff consumptions were calculated. Process and composite wastewater samples were collected at different periods and analyzed. The chemical loads of wastewaters were also calculated. The specific dyestuff and auxiliary chemical consumptions of the mill were compared with the data of a similar textile mill in the literature and the Integrated Pollution Prevention and Control (IPPC), Textile Best Available Techniques Reference (BREF) document. Thus, the chemical saving potential of the mill was evaluated. A detailed chemical inventory study was also carried out in the mill. The material safety data sheets (MSDSs) of 371 chemicals were examined in terms of biodegradation ratio, toxicity, and micropollutant content. As a result, 23 chemicals were proposed to be replaced with environmentally friendly substitutes. A total of 10 minimization and substitution practices were identified for the mill according to the investigation and analysis results. After the implementation of the suggested practices, reductions of 15–32 and 13–37% are estimated to be achieved in total chemical consumption and chemical oxygen demand (COD) load of wastewater, respectively. The potential payback periods of the suggested practices were calculated to range between 4 and 36 months. The employed methodology and the findings of this study may be useful for similar textile mills, stakeholders, and regulators. This study may also provide a road map to the textile industry for their sustainable and green production applications.
Monwar Hossain - One of the best experts on this subject based on the ideXlab platform.
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immobilization of lipase on Woolen Fabrics enhanced effectiveness in stain removal
Biotechnology Progress, 2014Co-Authors: Jing Dong An, Darrell A Patterson, Steve Mcneil, Monwar HossainAbstract:The aim of this research was to examine the effectiveness of an enzyme in enhancing the cleaning effectiveness of Woolen Fabric without addition of any detergent. As a model enzyme, lipase from Pseudomonas fluoresces was immobilized onto a Woolen cloth using a unique protocol that involved: chlorination of the wool, adsorbing a polyethyleneimine (PEI) spacer, adsorbing, and cross-linking with glutaraldehyde (GA) followed by adsorption of the lipase. It was determined that for this protocol, the immobilized activity was dependent on the GA solution pH and not on its concentration. The cloth exhibited excellent oily stain removal ability: after being stained with olive oil and stored for 1 day in air at room temperature, the oily stain could be easily removed by 0.05 M pH 8.5 Tris buffer without any detergent addition. This enhanced cleaning was stable also over a period of one month. The activity of the cloth (based on activity assay) dropped considerably over just 15 days storage in air. This therefore likely indicates that the enhanced cleaning seen over an extended storage period may not require as high an enzyme activity. The activity of the immobilized lipase was also very stable when stored under near ideal conditions: when the immobilized cloth was stored in 0.05 M Tris buffer (pH 8.5) for more than 80 days in a refrigerator, more than 80% of the lipase activity remained. Overall, results indicate that this immobilization protocol is a promising step towards producing a Woolen Fabric with enhanced cleaning properties. © 2014 American Institute of Chemical Engineers Biotechnol. Prog., 30:806–817, 2014
Lin Yuan - One of the best experts on this subject based on the ideXlab platform.
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Study of the Biochemical Fire Extinguishing Agent III.The Result of Middle Test in Producing Fire Extinguishing Agent of Protein Foam with Woolen Fabric
1999Co-Authors: Lin YuanAbstract:Present a new technology to produce fire extinguishing agent of protein foam with Woolen Fabric,and test the new agent.The results are as the following:foam 7\^3～8\^2 times,fire\|extinguishing time 120 s,aggainst burn time 12 min,hot stability 0\^2%,production costs decrease by 20%.
Darrell A Patterson - One of the best experts on this subject based on the ideXlab platform.
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immobilization of lipase on Woolen Fabrics enhanced effectiveness in stain removal
Biotechnology Progress, 2014Co-Authors: Jing Dong An, Darrell A Patterson, Steve Mcneil, Monwar HossainAbstract:The aim of this research was to examine the effectiveness of an enzyme in enhancing the cleaning effectiveness of Woolen Fabric without addition of any detergent. As a model enzyme, lipase from Pseudomonas fluoresces was immobilized onto a Woolen cloth using a unique protocol that involved: chlorination of the wool, adsorbing a polyethyleneimine (PEI) spacer, adsorbing, and cross-linking with glutaraldehyde (GA) followed by adsorption of the lipase. It was determined that for this protocol, the immobilized activity was dependent on the GA solution pH and not on its concentration. The cloth exhibited excellent oily stain removal ability: after being stained with olive oil and stored for 1 day in air at room temperature, the oily stain could be easily removed by 0.05 M pH 8.5 Tris buffer without any detergent addition. This enhanced cleaning was stable also over a period of one month. The activity of the cloth (based on activity assay) dropped considerably over just 15 days storage in air. This therefore likely indicates that the enhanced cleaning seen over an extended storage period may not require as high an enzyme activity. The activity of the immobilized lipase was also very stable when stored under near ideal conditions: when the immobilized cloth was stored in 0.05 M Tris buffer (pH 8.5) for more than 80 days in a refrigerator, more than 80% of the lipase activity remained. Overall, results indicate that this immobilization protocol is a promising step towards producing a Woolen Fabric with enhanced cleaning properties. © 2014 American Institute of Chemical Engineers Biotechnol. Prog., 30:806–817, 2014
