Combination Of Cotton Research Articles

Comparative study on productivity of double slope solar still using different wick and energy storage materials

The aim of the proposed study is to evaluate the efficiency of Double Slope Solar Still (DSS) using different wick and energy storage materials. In the study, wick materials such as jute, cotton and sponge were used in combination with energy storage materials such as mild steel, cast iron and copper. The experiments were conducted using DSS with different combinations of wick and energy storage materials to determine the efficient performance combination. The results show that sponge and copper have higher efficiency with wicks and energy storage materials. The results show that the maximum amount of water produced in a single day was 3147 ml when the DSS system was used with a combination of sponge and copper materials. This range shows an increase of 17.47 % and 12.44 % over the DSS with jute and copper and the DSS with the combination of cotton and copper respectively. The DSS showed the highest average energy efficiency when used in conjunction with a combination of sponge and copper, namely 51 % of the average efficiency. This corresponds to an increase of 18.60 % and 10.86 % compared to the combination of DSS with jute and copper and the combination of DSS with cotton and copper respectively. The best evaporation heat transfer coefficient of 345 W/m2K was determined for the combination of DSS with sponge and copper. Average exergy efficiency is also maximum of 3.076 % for the DSS with sponge and copper materials, which is higher than other investigated combinations. The proposed system has an energy payback period of 1.26 years, an energy production factor of 0.78, a life cycle efficiency of 6.9 % and a cost of $0.031 per litre of water produced in the environmental economic analysis.

The Effects of Polyester Filament Number and Accompanying Hydrophilic Fiber Type on Moisture Management and Drying of Double-Layered Knitted Fabrics

This study aims to investigate the moisture transfer and drying behavior of the double-layered fabrics knitted using polyester yarns with a combination of cotton and viscose yarns. As well as the fiber type on both faces, the effect of the number of filaments of the polyester yarns was also researched. For this purpose, double-layered interlock fabrics were knitted, and the resultant samples were characterized by moisture management, drying, water vapor permeability, and heat conduction tests. It was indicated that the fabrics knitted by polyester yarns on the inner side and cotton fabrics on the outer side resulted in a very good overall moisture-management capacity. The same applied to the drying speed; even faster drying was achieved than the 100% polyester double-layered samples. The increase in the filament number led to a decrease in both moisture management and drying rate. Moreover, it was determined that the use of viscose yarn was not suitable.

How do sleepwear and bedding fibre types affect sleep quality: A systematic review

SummarySleepwear and bedding materials can affect sleep quality by influencing the skin and body temperature and thermal comfort. This review systematically evaluates the impact of sleepwear or bedding of different fibre types on sleep quality. A systematic search was conducted in six data bases plus Google Scholar and manual searches. Original articles that compared human sleep quality between at least two fibre types of bedding or sleepwear were included, resulting in nine eligible articles included in the review. The fibre types included cotton, polyester, wool, and blended materials for sleepwear; cotton, duck down, goose down, polyester and wool for duvet; and linen and a combination of cotton and polyester for bedding. The interplay between fibre materials and sleep quality is complex. Blended sleepwear demonstrated potential benefits for specific populations. Wool sleepwear showed benefits for sleep onset in adults (cool conditions) and in older adults (warm conditions). Linen bedsheets improved sleep quality under warm conditions in young adults. Goose down‐filled duvets increased slow‐wave sleep under cool conditions in young adults. However, a systematic comparison of fibre types is challenging due to the diverse nature of the studies evaluating sleep quality. Further research employing standardised methodologies with standard fibre samples in different populations and in different temperature conditions is imperative to elucidate comprehensively the effects of fibre choices on sleep quality. Despite the limitations and heterogeneity of the included studies, this analysis offers valuable insights for individuals seeking to optimise their sleep experiences and for manufacturers developing sleep‐related products.

Synthesis of cellulose cotton-based UiO-66 MOFs for the removal of rhodamine B and Pb(II) metal ions from contaminated wastewater

The presence of pollutants in drinking water has become a significant concern recently. Various substances, including activated carbon, membranes, biochar, etc., are used to remove these pollutants. In the present study, a new composite comprising cotton fabric and a mixture of Metal-Organic Frameworks (MOFs) was synthesized and used as an adsorbent for eliminating pollutants from wastewater. At first, the UiO-66 MOFs were prepared by a simple method of reacting Zirconium (IV) chloride (ZrCl4) and p-Phthalic acid (PTA) after successful preparation of UiO-66 then modified its surface with amino functional groups by reacting with APTES to obtain UiO-66-NH2. Moreover, the cellulose cotton fabric (CF) surface was modified with Polydopamine (PDA) and obtained CF@PDA. Further, with the help of EDC-HCl and NHS, the UiO-66-NH2 grafted on the surface of the CF@PDA and finally obtained CF@PDA/UiO-66-NH2. In addition, the adsorption study was performed toward RhB dye and Pb(II) metal ion pollutants. The maximum adsorption toward RhB dye was 68.5 mg/g, while toward Pb(II) metal ions was 65 mg/g. In addition, the kinetic study was also conducted and the result favoured the Pseudo-second order kinetic study. The adsorption isotherm was also studied and the Langmuir model was more fitted as compared with the Freundlich model. Moreover, the material has excellent regeneration and recycling ability after ten cycles. The significant adsorption ability, the novel combination of cotton and MOFs, and the recycling feature make our material CF@PDA/UiO-66-NH2 a promising potential absorbent material for wastewater treatment and even in other important areas of water research.

Effectiveness of different facemask materials to combat transmission of airborne diseases

Graphic abstractThe pandemic COVID-19, caused by SARS-COV-2 virus has shaken the entire world with no such remedy till date. The only possible way to stop transmission of SARS-COV-2 is to take safety precautions including use of facemask. With the ever-increasing concern on the disease, it is necessary to choose facemask components to achieve the performance as good as commercially available N95 masks in a cost-effective way. This investigation compares the effectiveness of five different 3-layered masks with N95 mask in terms of pressure drop and aerosol filtration capabilities. Different combinations of cotton, polypropylene fabric, tissue and high-efficiency particulate air (HEPA) were used as mask materials. In comparison to N95 mask, the result shows that the 3-layered cotton mask has much lesser pressure drop but least droplet filtration efficiency, while polypropylene-HEPA-polypropylene mask is seen as the best cost-effective alternative to N95 in terms of droplets filtration efficiency and breathability. These findings are crucial to make the right non-medical facemask to combat COVID-19 and other airborne diseases.

Investigation of thermal comfort properties of electrospun thermoplastic polyurethane fiber coated knitted fabrics for wind‐resistant clothing

AbstractThe integration of nanofibers into conventional fabrics may open up new opportunities such as improving the comfort performance and thermal management properties of outdoor clothing. Nanofibers are able to form a highly porous mesh and their large surface‐to‐volume ratio improves performance for many applications. This study shows the possible utility of the nanofiber coating on conventional knitted fabrics for improving the wind‐resistance and breathability properties. It was seen that nanofiber coating did not cause a significant effect on water vapor and thermal resistance of electrospun thermoplastic polyurethane nanofiber coated cotton (CO), modal (CMD), viscose (CV), and lyocell (CLY) single jersey fabrics, while resistance to air permeability was increased with the increased nanofiber coating. High level of air resistance was achieved with 30 min of coating. In terms of comfort properties, the nanofiber coating proved to be advantageous due to its lower air permeability with its water vapor permeable structure. However, thermal insulation level of these fabrics was still low and fragile nanofiber layer needed to be protected. Therefore, a multi‐layered fabric form was derived from combination of cotton and lyocell fabrics with a nanofiber layer. The results showed that nanofibers could be used to improve the wind‐resistance and comfort properties of multi‐layered knitted structures.

DOĞAL VE SENTETİK LİF ESASLI KOMPAKT İPLİKLERDEN ÜRETİLEN GÖMLEKLİK KUMAŞLARIN BAZI MEKANİK VE HAVA GEÇİRGENLİĞİ ÖZELLİKLERİNİN İNCELENMESİ

Shirting fabrics are one of the most demanded product groups for textile consumers. Although cotton is the most preferred fibre as the raw material of shirting fabrics, fibres such as Polyester, Elastane, viscose and their blends with cotton may also be utilized in the shirting fabrics. For the convenience usage of shirting fabrics in apparel products, those fabrics’ durability and air permeability properties should be considered in detail. Fabric constructional parameters such as weave structure, warp and weft yarn density, yarn count, fibre type are the main influential factors on shirting fabrics’ mechanical and air permeability properties. This study has been performed in order to evaluate the effect of fabric construction on some mechanical properties such as tear strength, seam strength, crease recovery angle (°) as well as on air permeability of the shirting fabrics. Throughout the study, plain, dobby and satin shirting woven fabrics were produced from the compact yarns with several combinations of cotton, linen, polyamide, viscose and elastane fibre blends. Pre-treated samples were objected to tear strength test, seam strength test, crease recovery angle (°) test and finally to air permeability test. Randomized One –Way ANOVA test was performed in order to investigate the significant effect of fabric type on some mechanical and air permeability properties of shirting fabrics at significance level of 0.05. Test results were statistically evaluated and it was generally observed that there was a significant effect of fabric type on tear strength, seam strength, crease recovery angle and on air permeability features of the shirting fabrics at significant level of 0.05.

ОЦЕНКА ГИБРИДНОГО МАТЕРИАЛА НА УСТОЙЧИВОСТЬ К VERTICILLIUM DAHLIAE KLEBHAN С ПРИМЕНЕНИЕМ МАРКЕРНЫХ ФЕРМЕНТОВ ФИТОИММУНИТЕТА

The aim of the work is to assess the sustainability of breeding significant interline hybrids F 6 to V. dahlia, created in NIESSVAH as a starting material for breeding. 21 samples were selected by the NIISSVAH staff and the Institute of Bioorganic Chemistry ANRUz and transferred for the relevant biochemical analysis. In the experiment, they determined the activity of peroxidase, then they revealed its activity in seedlings of cotton seeds, and also established responsiveness to the defeat of V. dahlia. As a result of the research, the seeds of 21 different cotton hybrids were tested to study the activity of the chitin-specific peroxidase enzyme. For this purpose, seedlings of families of hybrid combinations of cotton were used in order to select a breeding material with high resistance to Verticillium. In the work on the assessment of resistance to V. dahlia, biochemical tests were used using phytoimmunity marker enzymes - chitin specific peroxidase. As a result of a biochemical study in the laboratory, it was established that the complex interlinear combination F 6 [F4-L-105 x L-108) x L-104] should be attributed to the pathogen-resistant V. dahliae among the studied samples. The family isolated from the F 6 hybrid [F 4 (L-105xL-106)xL-106] was used as a parental family when breeding a new variety of cotton C-6577, which was transferred for study to the State test from 2018.

Classical Least Squares-Assisted Mid-Infrared (MIR) Laser Spectroscopy Detection of High Explosives on Fabrics.

Mid-infrared (MIR) laser spectroscopy was used to detect the presence of residues of high explosives (HEs) on fabrics. The discrimination of the vibrational signals of HEs from a highly MIR-absorbing substrate was achieved by a simple and fast spectral evaluation without preparation of standards using the classical least squares (CLS) algorithm. Classical least squares focuses on minimizing the differences between the spectral features of the actual spectra acquired using MIR spectroscopy and the spectral features of calculated spectra modeled from linear combinations of the spectra of neat components: HEs, fabrics, and bias. Samples in several combinations of cotton fabrics/HEs were used to validate the methodology. Several experiments were performed focusing on binary, ternary, and quaternary mixtures of TNT, RDX, PETN, and fabrics. The parameters obtained from linear combinations of the calculated spectra were used to perform discrimination analyses and to determine the sensitivity and selectivity of HEs with respect to the substrates and to each other. However, discrimination analysis was not necessary to achieve successful detection of HEs on cotton fabric substrates. The RDX signals ( mRDX > 0.02 mg) on cotton were used to calculate the limit of detection (LOD). The signal-to-noise ratios (S/N) calculated from the spectra of cotton dosed with decreasing masses of RDX until S/N ≈ 3 resulted in a LOD of 15-33 µg, depending on the vibrational band used. Linear fits generated by comparing the mass dosed RDX with the fraction predicted were also used to calculate the LOD based on the uncertainty of the blank and the slope. This procedure resulted in a LOD of 58 µg. Probably the most representative value of the method LOD was calculated using an interpolation of a threshold determined using the predicted average value for the blank plus 3.28 times the standard deviations ( p-value threshold) for low surface dosages of RDX (LOD = 40 µg). The contribution demonstrates that to achieve HE detection on fabrics using the proposed algorithm, i.e., determining the presence/absence of HEs on the substrates, the library must contain the spectra of HEs, substrates, and potential interferents or that these spectra be added to the models in the field. If the model does not contain the spectra of the fabric components, there is a high probability of finding false positives for clean samples (no HEs) and a low probability for failed detection in samples with HEs. More work will be required to demonstrate that these new approaches to HE detection work on real-world samples and when contaminating materials are present in the samples.

Influence of varied crop residues and green biomass composts to rabi sorghum growing soils on uptake of major nutrients, microbial biomass and soil fertility status

A field experiment was conducted on vertisols (pH of 7.56 with organic carbon content of 0.55%) at Re- search Institute on Organic Farming, University of Agricultural Sciences, Raichur coming under northern Karnataka during rabi season of 2015-16 to study the Influence of varied crop residues and green biomass composts to rabi sorghum growing soils on uptake of major nutrients, organic carbon and soil fertility status. In general application of Cotton stalks, Redgram stalks, Glyricidia, combination of cotton and redgram stalks composts, FYM and combina- tion of organic and inorganic fertilizers helped to buildup soil nutrients with respect to organic carbon, available nitro- gen and phosphorus. Significantly higher nitrogen (227.3 kg ha-1), phosphorous (75.7 kg ha-1) and potassium (141.7 kg ha-1) uptake by rabi sorghum was recorded with combined application of recommended FYM (3 t ha-1) and NP fertilizers (50:25 kg N, P2O5 ha-1) (T14) followed by Cotton stalks +Redgram stalks + Glyricidia sp. with C:N ratio of 30:1 compost @ 50 kg N equivalent (T12: 222.0, 74.0 and 132.3 kg ha-1). The least uptake was recorded with abso- lute control (T15: 127.0, 42.0 and 71.7 kg ha-1). Similar trend was observed with organic carbon, available nitrogen and phosphorus. Combined application of recommended FYM (3 t ha-1) and NP fertilizers (50:25 kg N, P2O5 ha-1) followed by Cotton stalks +Redgram stalks + Glyricidia sp. with C:N ratio of 30:1 compost @ 50 kg N equivalent at the time of sowing recorded higher major nutrients uptake, microbial biomass and soil fertility status.

Circadian wheel-running activity rhythms are unaltered by acute cage enrichment with nests and shelters

C57BL/6J inbred male mice were assessed for the effects of cotton nesting material on circadian running-wheel assays at 60, 157 and 222 days of age. The oldest mice were also tested for effects of access to plastic igloo shelters and the combination of cotton plus igloos. All mice were assayed for mean activity level, acrophase and entrained circadian period in 12:12 LD, and mean activity level and free-running period in DD for circadian wheel-running activity. There were no significant effects, at any age, of either nesting material or shelters, or the combination of both, on any measures of circadian running-wheel activity. We conclude that circadian rhythm assessment is unlikely to be significantly altered by the inclusion of enrichment materials in running wheel cages.

Desempenho agronômico de algodão orgânico e oleaginosas consorciados com palma forrageira

Neste trabalho o objetivo foi avaliar o desempenho agronômico de algodão orgânico e oleaginosas consorciados com a palma forrageira no semiárido paraibano. No ano agrícola de 2009 foram conduzidos dois experimentos, em duas áreas: (I) na Fazenda Vila Maria Rita, situada no município de Taperoá, no cariri paraibano (II) no Assentamento Queimadas localizado em Remígio, no Curimataú paraibano enquanto os tratamentos, divididos em cultivo solteiro e consorciado, foram: algodão + gergelim + palma forrageira; algodão + amendoim + palma forrageira; algodão + palma forrageira; algodão solteiro; gergelim solteiro; girassol solteiro; amendoim solteiro e palma forrageira solteira. As variáveis analisadas foram: características tecnológicas de fibras, produtividade (grãos/caroço), rendimento em óleo, rendimento em fibra, renda bruta e uso eficiente da terra (UET) parcial e total. Para o rendimento em fibra o consórcio algodão + palma forrageira proporcionou o melhor resultado (311,14 kg ha-1) enquanto o amendoim solteiro apresentou maior rendimento em grãos (967,00 kg ha-1) e em óleo (428,02 kg ha-1). O consórcio algodão + gergelim + palma forrageira pode ser uma alternativa eficiente na agricultura familiar uma vez que apresentou resultados positivos em termos de renda bruta e UET total.

The Effect of Vibration Reduction on the Anti-vibration Gloves Made of Different Materials

PP-29-186 Background/Aims: Hand-transmitted vibration contributes to injury of the vascular, neurological, and musculoskeletal systems and is harmful for job performance of workers. In a survey of impact wrench users working in a Korean automobile assembly line, all workers did not use anti-vibration gloves at work. Of them, 70% had not experienced anti-vibration gloves; and 83.3% of the workers usually used a cotton glove, a rubber-coated cotton glove, and combination of cotton and rubber coating gloves instead of anti-vibration glove. The aim of this paper is to evaluate the suitability of anti-vibration gloves, cotton glove, and rubber-coated glove by using, on the basis of vibration transmissibility in accordance with International Organization for Standardization (ISO) 10819, and to examine the effect of vibration reduction on the anti-vibration gloves made of different materials. Methods: This study targeted 24 anti-vibration gloves, 4 types of a cotton glove, a rubber-coated glove, and combination of cotton and rubber coating gloves. This paper uses 2 ISO standards for the measurement and evaluation of hand-arm vibration. Some anti-vibration gloves can attenuate vibration, but all the anti-vibration gloves in this study do not satisfy the ISO 10819 requirements. In case of equal vibration types, the outside materials are effective in order of leather, fabrics, and rubber-coating, according to the ISO 5349 standard. Results: As a result of frequency analysis, the most effective material for vibration attenuation are sponge at 10 Hz or below. Rubber material is effective at 100 Hz or upper. The most effective material for vibration attenuation is gel, sponge, and rubber at whole frequency range. Conclusion: In case of wearing the gloves, the vibration peak fell down from twice to 8 times, so workers can use vibration tools for more than 8 hours.

Continuous Cotton and Cotton-Wheat Rotation Effects on Soil Properties and Profitability in an Irrigated Vertisol

ABSTRACT The combination of cotton (Gossypium hirsutum L.)-wheat (Triticum aestivum L.) rotations and minimum tillage is known to be superior to cotton monoculture in maintaining soil quality in eastern Australian Vertisols. Furthermore, sowing cotton into retained wheat stubble can minimize erosion and runoff, reduce off-field movement of pesticide residues and nutrients, and protect cotton seedlings from attack by heliothis moths. However, the consequences of sowing irrigated cotton into standing wheat stubble on soil quality and profitability are unknown. The objective of this study was to quantify the changes in several soil quality indices, viz. soil organic C (SOC), salinity, sodicity, structure, exchangeable cations, and profitability due to sowing irrigated cotton into standing wheat stubble. The sodicity indices measured were ESP (exchangeable sodium percentage) and EC1:5/exchangeable Na, and structural indices were in situ macroporosity at field capacity and bulk density. Soil properties and profitability were measured between 2000 and 2003 in a furrow-irrigated experiment at the Australian Cotton Research Institute (ACRI), near Narrabri, in New South Wales, Australia. The treatments were continuous cotton sown after conventional (disc-ploughing and chisel ploughing, followed by ridging) or minimum tillage (slashing of cotton plants after harvest, followed by root cutting and bed renovation with a disc-hiller), and minimum-tilled cotton-wheat. Between 1985 and 1999 cotton was sown after wheat stubble was incorporated but after 1999 it was sown into standing wheat stubble. Conventional cotton was sown in all plots between 1985 and 1999, whereas Roundup-Ready™ cotton was sown from 2000 onwards. Continuous cotton sown after conventional tillage had lowest SOC, exchangeable K, in situ macroporosity at field capacity and EC1:5/exchangeable Na, and highest ESP and bulk density. The reverse occurred with cotton-wheat sown after minimum tillage. Differences in these soil properties were greater between tillage systems than between cotton-wheat and continuous cotton cropping systems. Nonetheless, minimum-tilled cotton-wheat had higher SOC and exchangeable K than minimum-tilled continuous cotton. Sowing cotton into standing wheat stubble improved salt leaching. By 2003, cumulative gross margins were similar in all three cropping systems. At the same time, in comparison with both continuous cotton systems, cumulative variable costs were about 20% lower with minimum tilled cotton-wheat. Similar profits can be realized with less intensive cotton production systems which at the same time degrade soil quality less and have lower production costs. Analysis of weed control costs suggested that over-the-top application of Roundup in Roundup-Ready™ cotton resulted in early season control of weeds in the short-term and decreasing weed control costs over the longer-term.

Rotation responses of cotton in the Sudan Gezira: II. The effect of fertilizer nitrogen on the reponse to rotation

SUMMARYThe interactions between nitrogen fertilizer and crop rotations in their effects on the yield of cotton in the Sudan were studied by superimposing fertilizer treatments on a rotation experiment which was already more than 30 years old. This experiment compared ten rotations comprising various combinations of cotton with fallow and an alternating crop of dura (a sorghum millet) and lubia (Dolichos lablab. L.). The results support the concept that low basic yields in the absence of a nitrogen dressing are primarily due to nitrogen deficiency. In general the response to nitrogen was greater on rotations which led to low yields of cotton so that rotational effects were greatly reduced or eliminated when a nitrogen dressing was given. Although in some cases cotton following fallow out-yielded cotton following dura, in general rotations containing dura and lubia gave higher yields of cotton than rotations with the same intensity of cotton cropping combined with fallows only. These beneficial effects of other crops instead of fallows in the rotation, although not in agreement with the long-term averages wereto be expected from the long-term trends in yields with time. Combined with the finding that even the most adverse effects of dura could be largely compensated for by a fertilizer dressing, this indicates that cropping in the Gezira could be considerably intensified without loss of cotton yield per acre per year. The difficulties of such intensification would centre around weed, disease and pest control rather than soil fertility. Further experiments are required to determine the fertilizer nitrogen requirements of cotton following different crops.

Rotation responses of cotton in the Sudan Gezira:I. The effect of crop rotation on cotton yields

The rotation responses of unfertilized cotton were investigated using data obtained over a 28-year period from an experiment comparing ten rotations in various combinations of cotton with fallow and an alternating crop of dura (a sorghum millet) and lubia (a legume).