@article{torres_abedin_denhartog_2024, title={Latent Heat Loss Through Fabrics During an Alternate Simulated Work-Rest Sequence}, volume={4}, ISSN={["2330-5517"]}, DOI={10.1177/24723444241246305}, abstractNote={Humans produce different rates of sweating depending on the intensity level of a given activity. The clothing worn during the activity has a significant effect on the latent heat loss that can occur before, during, and after the activity. The water adsorption and spreading properties of a material yield differences in the amount of heat exchange that can occur between the person and the environment. Current test methods evaluate this using a value known as evaporative resistance, which is used to determine the heat exchange potential of a material. However, this value is only taken once the material has reached “steady state” and does not consider the sweating period before steady state is reached, or the drying period after steady state is reached. Therefore, an area under the curve (AUC) value was derived during these periods to compare the heat exchange properties of different materials. A sweating guarded hot plate was used to simulate different sweat rates, and therefore activity levels, to compare materials constructed of cotton, viscose, polyester, and wool. The overall latent heat loss of the hydrophobic wool was much less compared to the other samples with a gentler slope and lower AUC values than the other samples. It was found that the segment of time analyzed has a significant impact on the conclusion drawn about the latent heat loss of a material, p < 0.0001. Sweat rate also has a significant impact on the heat loss value, p < 0.0001, but is perhaps less useful when comparing samples to each other. It was found that comparing the different periods of the test could yield different conclusions when comparing materials for latent heat loss. Several current test methods do not consider phases outside of the steady state period and therefore miss valuable information pertinent to user comfort during these phases, especially in the post-exercise phase.}, journal={AATCC JOURNAL OF RESEARCH}, author={Torres, Edgar Garcia and Abedin, Faisal and DenHartog, Emiel}, year={2024}, month={Apr} }
 @article{abedin_denhartog_2023, title={Clothing impact on post-exercise comfort: skin-clothing physiology in transient environment}, volume={11}, ISSN={["1366-5847"]}, DOI={10.1080/00140139.2023.2281272}, abstractNote={Sportswear manufactured from hygroscopic fibers can absorb moisture during activity or intermittent exercise and may change the thermal management of clothing. This change in the thermal behavior of the fabric can lead to buffer the post-exercise chill. During activity in a moderately cold environment clothing made of 100% wool fiber helps wearers to slow down evaporative and conductive cooling, which can provide more thermal and comfort sensation compared to 100% cotton, 100% viscose, and 100% polyester. Twelve males performed cycling in a controlled climate chamber of temperature:15 ± 0.5 °C, and relative humidity (RH):50 ± 5% followed by a drying phase in a windy environment by wearing full-sleeve t-shirts. Wool shirt was observed to hold a greater torso skin temperature (p < 0.05) than the other fiber types. Participants were asked a range of comfort-related questions at varying intervals. The temperature sensation was found (p < 0.05) significant for wool clothing. Moreover, participants rated wool shirt significantly (p < 0.05) as more comfortable during the post-exercise phase.}, journal={ERGONOMICS}, author={Abedin, Faisal and Denhartog, Emiel}, year={2023}, month={Nov} }
 @article{abedin_denhartog_2023, title={The Exothermic Effects of Textile Fibers during Changes in Environmental Humidity: A Comparison between ISO:16533 and Dynamic Hot Plate Test Method}, volume={11}, ISSN={["2079-6439"]}, url={https://doi.org/10.3390/fib11050047}, DOI={10.3390/fib11050047}, abstractNote={The exothermic effects of high regain fiber types have been described before; yet, there have not been reliable tests to demonstrate these effects on the human body. Most test methods focus on steady-state measurements; therefore, these exothermic effects during changes in environmental humidity are typically not analyzed or quantified. We have conducted a set of fabric tests that shows the connection between the exothermic effect of water vapor uptake and its consequence for heat loss through the fabric in transient conditions. We have performed the ISO:16533 standard test, a dynamic hot plate test developed by Naylor to measure the exothermic property of the fabric, and dynamic regain tests to connect the dots between these tests and the water vapor uptake phenomenon. Although the ISO:16533 test method tends to show the temperature increase in fibers, it cannot differentiate between the hygroscopic fiber (wool, viscose, cotton) types (p > 0.001). In addition, sensor size and sample folding techniques could impact the temperature increase. On the other hand, the Naylor hot plate test showed a greater difference in heat release among the fiber types (wool showed 20% higher heat release than viscose, 50% more than cotton), although the relative humidity changes in the chamber take time, which might not reflect a step-wise change in humidity. So far, these test methods have proven to be the most reliable for determining the exothermic behavior of textile fiber. However, these test methods still have limitations and cannot simulate realistic environmental conditions considering an instantaneous change in the environment. This paper reflects the comparison between the two test methods and recommends directions to accurately address the theory of water vapor uptake under dynamic conditions.}, number={5}, journal={FIBERS}, author={Abedin, Faisal and DenHartog, Emiel}, year={2023}, month={May} }
 @article{rahman_khalil_solaiman_khan_sarkar_abedin_kamal_mamun_2015, title={Investigation on Physico-Chemical Properties of 100% Cotton Woven Fabric Treated with Titanium Dioxide}, volume={3}, ISSN={2330-8753}, url={http://dx.doi.org/10.11648/j.ajac.20150302.15}, DOI={10.11648/j.ajac.20150302.15}, abstractNote={This paper represents an approach to observe the physico-chemical effects of titanium dioxide (TiO2) applied on 100% cotton woven fabric. Cotton fabric was treated with TiO2 by exhaustion method and followed by necessary curing and washing processes. The treated fabrics were then analyzed by Scanning Electron Microscope (SEM) and the tensile strength, pH and absorbency of the treated and untreated fabrics were examined. It was found that titanium dioxide impairs the hand feel and absorbency of 100% cotton woven fabrics, wetting time of all treated fabrics increased gradually than untreated fabrics. The treatment increases the tensile strength of 100% cotton woven fabrics. The treatment with titanium dioxide also kept the pH of the fabric in acidic medium.}, number={2}, journal={American Journal of Applied Chemistry}, publisher={Science Publishing Group}, author={Rahman, Md Mostafizur and Khalil, Elias and Solaiman, Md. and Khan, Mubarak Ahmad and Sarkar, Joy and Abedin, Faisal and Kamal, A.H.M.Asif and Mamun, Rajib Al}, year={2015}, month={Apr}, pages={65–68} }
 @article{abedin_maniruzzaman_sina_khalil_2014, title={Effect of Gauge Variation of Circular Knitting Machine on Physical and Mechanical Properties of Cotton Knitted Fabrics}, volume={3}, ISSN={2325-0100}, number={4}, journal={International Journal of Textile Science}, publisher={Scientific & Academic Publishing}, author={Abedin, Faisal and Maniruzzaman, K.M. and Sina, Ahmad Saquib and Khalil, Elias}, year={2014}, pages={70–75} }