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Effect of Knitted Structures and Yarn Count on the Properties of Weft Knitted Fabrics 被引量:1
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作者 Zubair Bin Sayed tarikul islam +1 位作者 Nazif Hasan Chawdhury Mafzal Ahmed 《Journal of Textile Science and Technology》 2018年第2期67-77,共11页
This paper is focused on change in shrinkage, GSM, Wales per Inch and Course per Inch due to structure and count variation and state variation. This work was carried out with 12 samples of single jersey, single lacost... This paper is focused on change in shrinkage, GSM, Wales per Inch and Course per Inch due to structure and count variation and state variation. This work was carried out with 12 samples of single jersey, single lacoste and weft lock knit fabrics of different counts which were scoured with NaOH. After pretreatment process the samples were tested for widthwise shrinkage, width, GSM, Wales per Inch and Course per Inch and compared between different states like grey state and finished state. The result obtained in this research indicated that physical properties like structures with tuck stitch possess higher value of widthwise shrinkage, width, GSM and Wales per Inch and Course per Inch value lowers prominently in those structures having float or miss stitches. In both cases i.e. grey state and RFD state values of those properties are high in coarser yarn and low in finer yarn. During project knitted fabrics specification along with machine specification and major factors which are necessary to calculate different types of variation and variables on which the whole fabric construction depends were managed to watch carefully. Main efforts were to develop a dependable way so that the resulting fabric specifications with required configuration can be easily visualized and be forecasted. A great emphasization was provided to the adjustable points on which fabric GSM, stitch length, fabric width and shrinkage percentage directly or indirectly depends. 展开更多
关键词 Course PER Inch COUNT GSM SHRINKAGE Wales PER Inch WEFT KNITTING
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Precision Active Bridge Circuit for Measuring Incremental Resistance with ANN Compensation of Excitation Voltage Variation 被引量:1
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作者 Shakeb A. Khan tarikul islam 《Journal of Sensor Technology》 2011年第3期57-64,共8页
The present work deals with the development of low cost, appreciably accurate precision electronic circuit for resistive sensor where measurement of the incremental resistance change with high degree of accuracy is es... The present work deals with the development of low cost, appreciably accurate precision electronic circuit for resistive sensor where measurement of the incremental resistance change with high degree of accuracy is essential. A linear and sensitive active half bridge circuit requiring only few components for its hardware implementation has been proposed for measuring very small resistance change due to change in physical quantity or chemical analytes. Theory of the proposed active bridge circuit has been discussed and experimental results have been compared with conventional bridge circuit. Initial measurements are made with Pt-100 Strain gauge sensor but it can be extended to other resistive sensors of practical importance. Results show that the active bridge circuit is almost four times more sensitive than conventional half bridge circuit and two times more sensitive than full Wheatstone bridge circuit. Studies have also been made to analyze the errors due to ambient temperature, connecting lead resistance and dc excitation voltage. Experimental results show that output of the circuit has negligible effect on ambient temperature and connecting lead resistance. The error due to excitation voltage has been compensated using Artificial Neural Network (ANN) based inverse modeling technique. 展开更多
关键词 ACTIVE Bridge Strain GAUGE ANN Lead RESISTANCE INVERSE Modeling
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Effect of Alkali Concentration on Dyeing Cotton Knitted Fabrics with Reactive Dyes
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作者 Debasree Paul Subrata Chandra Das +2 位作者 tarikul islam Md. Abu Bakar Siddiquee Md. Abdullah AlMamun 《Journal of Chemistry and Chemical Engineering》 2017年第4期162-167,共6页
The effect of alkali concentrations has been studied on the color strength (K/S) and color fastness properties of single jersey cotton knitted fabrics dyed with 1% Novacron Red S-B reactive dye. Same bath scouring a... The effect of alkali concentrations has been studied on the color strength (K/S) and color fastness properties of single jersey cotton knitted fabrics dyed with 1% Novacron Red S-B reactive dye. Same bath scouring and bleaching are performed and conventional exhaust dyeing method employed by IR laboratory sample dyeing machine. Various alkali concentrations such as 6, 7, 8, 9 and 10 g/L are employed and other parameters are kept fixed. The color strength (K/S) and color fastness to wash and rubbing are examined and evaluated. It is revealed that with the increase in alkali concentration from 6 g/L to 8 g/L the value of K/S increases and then up to 10 g/L the value decreases. The overall color fastness properties to washing and rubbing for the dyed samples range from good to excellent. 展开更多
关键词 Alkali concentration cotton fabrics reactive dye color strength color fastness.
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Development of Double Cloth Structure to Facilitate Versatile Application of Denim Fabric
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作者 Rubel Alam tarikul islam +3 位作者 Ahsan Haider Nazmul Haque Jahidul islam Mohammad Zakaria 《Journal of Textile Science and Technology》 2019年第1期19-26,共8页
Denim is the most popular dress material to any age of people. Day by day its demand increasing swiftly because of western life style and fashion has been accelerated with the trends of casualization across the globe.... Denim is the most popular dress material to any age of people. Day by day its demand increasing swiftly because of western life style and fashion has been accelerated with the trends of casualization across the globe. Nowadays, the present structure of denim (regular, stretch) cannot cover the versatile field of human needs owing to its comfort and stiffness problem. So it is very important to diversification of denim fabrics according to the customers demand and also acquisition the consumer. The main goal of the study is to develop double cloth structure in denim using 30s/1 and 20s/1 cotton (CW) yarn by some selected structures. Moreover, it will create new era by promoting versatility keeping with comfort factors. Here, some denim fabric has been manufactured by using double cloth structure that will give versatility and it affects thermo-physiological comfort. The warmth of a fabric has been found due to the trapping air into the structure and such applications like top garments, baby and kids wear, jacket, coat, cloth for winter season etc. Eventually, the samples have been tested and compared with regular denim on the basis of visual appearance, GSM, tensile strength, shrinkage and stiffness. The developed samples provided satisfactory level compared to regular. Most importantly, findings come due to dissipation the yarn into two layers along with finer count rather than regular denim. 展开更多
关键词 DENIM DOUBLE CLOTH GSM Stiffness TENSILE Strength
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Effect of Spinning Parameters on Thick, Thin Places and Neps of Rotor Spun Yarn
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作者 Md. Reazuddin Repon Rajib Al Mamun +2 位作者 Selim Reza Mithun Kumer Das tarikul islam 《Journal of Textile Science and Technology》 2016年第3期47-55,共9页
Defect free yarn is a great demand for spinner, knitter, and weaver and also other textile personnel because numerous end products from knit apparels to woven fabrics, from towels to sheets and from carpets to industr... Defect free yarn is a great demand for spinner, knitter, and weaver and also other textile personnel because numerous end products from knit apparels to woven fabrics, from towels to sheets and from carpets to industrial fabrics characteristics significantly depend on the physical properties of yarn. The qualities of rotor yarn are really directed by spinning parameters. The aim of this study is to observe the effect of spinning parameters such as rotor diameter and speed on thick, thin places and neps of yarn in rotor spinning process. 0.11 sliver hank of 100% cotton was used to produce 12 Ne yarn. 65% virgin cotton and 35% wastage cotton were mixed together. The positive impact of spinning parameters on yarn properties were accessed by thick places, thin places and neps. Results indicate that the yarn qualities were improved with increasing of rotor speed and rotor diameter. The rotor diameter was settled to 43 mm while rotor speed fluctuated from 35,000 to 45,000 rpm and rotor speed was fixed to 35,000 rpm while rotor diameter across contrasts from 43 mm to 66 mm. 展开更多
关键词 Rotor Spinning Rotor Diameter Rotor Speed Thick Places Thin Places NEPS
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Traveling wave solutions to some nonlinear fractional partial differential equations through the rational(G'/G)-expansion method 被引量:7
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作者 tarikul islam M.Ali Akbar Abul Kalam Azad 《Journal of Ocean Engineering and Science》 SCIE 2018年第1期76-81,共6页
In this article,the analytical solutions to the space-time fractional foam drainage equation and the space-time fractional symmetric regu-larized long wave(SRLW)equation are successfully examined by the recently estab... In this article,the analytical solutions to the space-time fractional foam drainage equation and the space-time fractional symmetric regu-larized long wave(SRLW)equation are successfully examined by the recently established rational(G/G)-expansion method.The suggested equations are reduced into the nonlinear ordinary differential equations with the aid of the fractional complex transform.Consequently,the theories of the ordinary differential equations are implemented effectively.Three types closed form traveling wave solutions,such as hyper-bolic function,trigonometric function and rational,are constructed by using the suggested method in the sense of conformable fractional derivative.The obtained solutions might be significant to analyze the depth and spacing of parallel subsurface drain and small-amplitude long wave on the surface of the water in a channel.It is observed that the performance of the rational(G/G)-expansion method is reliable and will be used to establish new general closed form solutions for any other NPDEs of fractional order. 展开更多
关键词 Nonlinear space-time fractional equations Nonlinear fractional complex transformation Conformable fractional derivative Exact solutions
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New-fashioned solitons of coupled nonlinear Maccari systems describing the motion of solitary waves in fluid flow
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作者 tarikul islam Ali Akbar +1 位作者 Hadi Rezazadeh Ahmet Bekir 《Journal of Ocean Engineering and Science》 SCIE 2024年第4期353-363,共11页
The Schrodinger equation type nonlinear coupled Maccari system is a significant equation that flourished with the wide-ranging arena concerning fluid flow and the theory of deep-water waves,physics of plasma,nonlinear... The Schrodinger equation type nonlinear coupled Maccari system is a significant equation that flourished with the wide-ranging arena concerning fluid flow and the theory of deep-water waves,physics of plasma,nonlinear optics,etc.We exploit the enhanced tanh approach and the rational(G/G)-expansion process to retrieve the soliton and dissimilar soliton solutions to the Maccari system in this study.The suggested systems of nonlinear equations turn into a differential equation of single variable through executing some operations of wave variable alteration.Thereupon,with the successful implementation of the advised techniques,a lot of exact soliton solutions are regained.The obtained solutions are depicted in 2D,3D,and contour traces by assigning appropriate values of the allied unknown constants.These diverse graphical appearances assist the researchers to understand the underlying processes of intricate phenomena of the leading equations.The individual performances of the employed methods are praise-worthy which justify further application to unravel many other nonlinear evolution equations ascending in various branches of science and engineering. 展开更多
关键词 Rational(G'/G)-expansion method Coupled nonlinear schrodinger equations Soliton Improved tanh method Exact solutions
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