Computation Geometry Algorithm in PTT Seamless Knitting Technology

2021 ◽  
pp. 2231-2236
Author(s):  
Lin Wang
Keyword(s):  
Computation Geometry ◽  
Seamless Knitting

Can heterogeneous compression textile design reshape skin pressures? A fundamental study

2018 ◽  
Vol 88 (17) ◽  
pp. 1915-1930 ◽  
Author(s):  
Rong Liu ◽  
Terence T Lao ◽  
Trevor J Little ◽  
Xinbo Wu ◽  
Xiao Ke
Keyword(s):  
Cross Sections ◽  
Three Dimensional ◽  
Lower Limbs ◽  
Compression Stockings ◽  
Fundamental Study ◽  
Textile Design ◽  
Compression Performance ◽  
Pressure Profiles ◽  
Seamless Knitting

Textile-based compression interventions (e.g. compression stockings and bandages), as an essential “source of pressure”, have impacted the effectiveness of pressure dosage delivery. The homogeneous structures of traditional compression shells generate highly uneven pressure distributions around leg geometrics in a passive mode, resulting in side effects and uncomfortable wearing perception. With this in mind, new heterogeneous compression sleeves with hybrid elastic properties were fabricated utilizing advanced three-dimensional seamless knitting technology and a unique laid-in structural design. PicoPress pressure assessment revealed in vivo that the developed heterogeneous compression shells with appropriate configurations for the lower limbs demonstrated the capability to proactively reshape skin pressures around leg cross-sections via calibrated proportions of segments with hybrid elastic moduli. The reduced anterior peak focal pressures and increased pressures at muscle-dominated posterior calves together provided a promising measure to enhance pressure function and user compliance in practice. The results will contribute to the development of a new generation of heterogeneous compression stockings with “bi-axial” pressure profiles for improved compression performance in extensive applications.

A Novel Solution of Monitoring Incontinence Status by Conductive Yarn and Advanced Seamless Knitting Techniques

2012 ◽  
Vol 7 (4) ◽  
pp. 155892501200700 ◽  
Author(s):  
Rong Liu ◽  
Shuxiao Wang ◽  
Terence T. Lao
Keyword(s):  
Care Provider ◽  
Electrical Resistance ◽  
Conductive Yarns ◽  
Wet Processing ◽  
Potential Applications ◽  
Stable Performance ◽  
Seamless Knitting ◽  
Intelligent Healthcare ◽  
Conductive Yarn ◽  
Product Dimension

This paper presents a novel solution for monitoring incontinence status through the design and development of the intelligent incontinence pants by the use of conductive yarns and incorporating advanced circular seamless knitting technology. The produced textile incorporates wire and electrodes by conductive yarn working with a siren system which can monitor, sense and alert the wearer and care provider on the incontinence status in real time so as to reduce the need for manual checking and minimize patient care workload. The engineered stitches, yarn materials, and unique seamless knitting techniques provide soft handling, special fabric mechanisms, and tactile comfort of the resulting product. The electrical resistance of knitted conductive yarn demonstrated a stable performance in wet processing. Fitting body trials were conducted to estimate product dimension and configuration. This study allows us to explore further the potential applications of conductive yarn and seamless knitting technology in bio-functional and intelligent healthcare products and solutions through integrating multidisciplinary knowledge and techniques.

Early Childhood Corner: Teaching with Blocks

2009 ◽  
Vol 15 (8) ◽  
pp. 460-463
Author(s):  
Jennifer Taylor-Cox
Keyword(s):  
Early Childhood ◽  
Data Analysis ◽  
Young Children ◽  
Number Sense ◽  
Spatial Thinking ◽  
Mathematical Foundation ◽  
Computation Geometry ◽  
Early Childhood Classrooms ◽  
And Algebra

Blocks are powerful mathematical tools when used to teach young children early concepts in measurement, number sense, computation, geometry, data analysis, and algebra. For nearly one hundred years, blocks have played a role in early childhood classrooms (Smith 2001). Yet not everyone understands the mathematics conceptbuilding power associated with blocks. From sorting to patterning, young children can build a strong mathematical foundation one block at a time. This article examines how blocks can be especially useful in engaging children in activities that address algebraic, geometric, and spatial thinking.

scholarly journals Mobile Robot Path Planning in Dynamic Environment Using Voronoi Diagram and Computation Geometry Technique

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 86026-86040 ◽  
Author(s):  
Ben Beklisi Kwame Ayawli ◽  
Xue Mei ◽  
Mouquan Shen ◽  
Albert Yaw Appiah ◽  
Frimpong Kyeremeh
Keyword(s):  
Path Planning ◽  
Mobile Robot ◽  
Voronoi Diagram ◽  
Dynamic Environment ◽  
Robot Path Planning ◽  
Computation Geometry ◽  
Robot Path

The knitting methods for seamless garments based on four-needle bed computerized flat machine

2021 ◽  
pp. 004051752110351
Author(s):  
Lisha Lu ◽  
Gaoming Jiang ◽  
Guangjun Wu
Keyword(s):  
Design Process ◽  
Production Efficiency ◽  
Design System ◽  
Great Contribution ◽  
Pattern Design ◽  
Traditional Technology ◽  
Different Types ◽  
2D Pattern ◽  
Seamless Knitting ◽  
Transformation Methods

Seamless garments reducing the cutting and sewing processes are created using seamless knitting technology. This type of garment, being less dependent on labor, is knitted as a whole and makes a great contribution to improving production efficiency. More importantly, seamless garments are more comfortable and natural compared with those styles produced by traditional technology. However, the techniques of seamless garments are huge and complex, making the pattern design process more difficult. In addition, the seamless knitting technology has great restrictions to the styles with rich shapes due to the limitation of the devices. Therefore, how to knit more complex styles using seamless knitting technology still faces great challenges. For these reasons, this study extensively investigated the knitting principle of seamless garments and proposed six knitting models for different kinds of garments. Then the transformation methods from 3D style to 2D pattern were explored respectively based on the knitting characteristics of each model. Finally, by package programming in the SDS-ONE APEX design system, the actual knitting for six types of garments was conducted on the computerized flat knitting machine. The results showed that different types of seamless garments have significant differences in the pattern design and the approaches proposed above can make different kinds of garments using seamless knitting technology.

Research on the Influence of the Fabric Organization to Wind-Resistant Property of Sportswear

2011 ◽  
Vol 331 ◽  
pp. 646-649 ◽  
Author(s):  
Yu Xiu Yan ◽  
Xiu Yi ◽  
Jian Wei Tao ◽  
Min Bo Lin ◽  
Rong Qi Li
Keyword(s):  
Data Analysis ◽  
Wind Tunnel ◽  
Research And Development ◽  
Wind Tunnel Test ◽  
Plain Weave ◽  
Seamless Knitting ◽  
Curve Equation

Selected four organizations in those are most frequently-used in sportswear, then weaved a common sports-vest by the seamless knitting machines. Used the methods of wind tunnel test and data analysis, reached a conclusion about the influence of the organizations to wind-resistant property of sportswear: in the winding speed scope of the experiments, when the winding speed are between 3.3 m/s and 11.55 m/s, the wind-resistant property of the four organizations are almost the same; when the winding speed are between 11.55 m/s and 18.70 m/s, the wind-resistant property are different, the order from bad to good is 1×2 false rib organization, one road off staggered 1×1 false rib organization, mesh organization, plain weave, and reached the fitting curve equation. The study provides theoretical and practical reference for the research and development of sportswear.

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