Knitting parameters effect of coffee carbon polyamide and graphene polyamide far-infrared knits on human skin microcirculation

In this paper, the effect of coffee carbon and graphene far-infrared polyamide knitted fabrics on blood perfusion were studied based on the test method of human skin microcirculation (HSM), starting from the plating yarn feeding ratio and stitch of seamless knitted fabrics. Set the face yarn feeding ratios of coffee carbon polyamide (CCP) and graphene polyamide (GP) as 100:0, 75:25, 50:50, and 25:75. The stitches were 1 + 3 rib, 1 + 1 false rib, and plain plating. Both the plating yarn feeding ratio and stitch were designed as two experimental factors. According to the comprehensive experimental design method, 12 seamless knitted fabrics were prepared. The HSM was tested by BVI Projection Vein Finder. According to the orthogonal analysis method: Factor A, the plating yarn feeding ratio has the greatest effect on HSM, the second was factor B. When the plating yarn feeding ratio was 75:25, the stitch was 1 + 3 rib, the fabric has an excellent promoting effect on HSM. The purpose of this study was to explore the process parameters of far-infrared seamless knitted fabrics that have a better promotion effect on HSM, to apply the process to develop functional health care clothing to meet people’s market needs.

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Study of the Relationship between the Structural Parameters of Magnetic Polypropylene-Knitted Fabric and Human Skin Microcirculation

Materials ◽

10.3390/ma14164368 ◽

2021 ◽

Vol 14 (16) ◽

pp. 4368

Author(s):

Zimin Jin ◽

Si Chen ◽

Jing Jin ◽

Kunying Chen ◽

Yuqiang Sun ◽

...

Keyword(s):

Blood Flow ◽

Human Skin ◽

Design Method ◽

Structural Parameters ◽

Raw Material ◽

Functional Health ◽

Knitted Fabric ◽

Magnetic Powder ◽

Skin Microcirculation ◽

Powder Content

In this paper, the effects of the structural parameters of magnetic-knitted fabric on human skin microcirculation (HSM) were studied in relation to magnetic polypropylene yarn, which was used as raw material. Three experimental factors were designed: the magnetic powder content of polypropylene, the feeding ratio of magnetic polypropylene (MP) and graphene viscous (GV), and stitch. Twelve pieces of seamless knitted fabric were prepared according to the comprehensive experimental design method. The BIV angiography was used to proceed with an HSM test of about 12 pieces of seamless knitted fabric. The results show the following: The magnetic powder content of polypropylene has the greatest influence on the blood flow promotion multiples of skin–blood microcirculation, followed by the feeding ratio of MP and GV, while stitch has the least influence. When the plating yarn feeding ratio was 100:0, the magnetic powder content of polypropylene was 50%, and the stitch was 1 + 1 false rib, meaning that the fabric could promote HSM more efficiently. This is compared against the common polypropylene knitted fabric, where the blood flow promotion multiples increased by 9.87%. The purpose of this study was to explore the structural parameters of magnetic polypropylene-knitted fabric that has a better effect on promoting HSM, and to provide a reference for the development of functional health-knitted fabrics.

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Pharmacology of the human skin microcirculation

Microvascular Research ◽

10.1016/j.mvr.2010.03.005 ◽

2010 ◽

Vol 80 (1) ◽

pp. 1 ◽

Cited By ~ 3

Author(s):

Jean-Luc Cracowski ◽

Matthieu Roustit

Keyword(s):

Human Skin ◽

Skin Microcirculation

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Effects of Combined Far-Infrared Radiation and Acupuncture at ST36 on Peripheral Blood Perfusion and Autonomic Activities

Evidence-based Complementary and Alternative Medicine ◽

10.1155/2017/1947315 ◽

2017 ◽

Vol 2017 ◽

pp. 1-7 ◽

Cited By ~ 1

Author(s):

Cheng-Chan Yang ◽

Gen-Min Lin ◽

Jen-Hung Wang ◽

Hsiao-Chiang Chu ◽

Hsien-Tsai Wu ◽

...

Keyword(s):

Infrared Radiation ◽

Combined Treatment ◽

Treatment Strategies ◽

Blood Perfusion ◽

Far Infrared ◽

Peripheral Circulation ◽

Treatment Area ◽

Clinical Benefits ◽

Stage 1 ◽

Far Infrared Radiation

Using four-channel photoplethysmography (PPG) for acquiring peripheral arterial waveforms, this study investigated vascular and autonomic impacts of combined acupuncture-far infrared radiation (FIR) in improving peripheral circulation. Twenty healthy young adults aged 25.5±4.6 were enrolled for 30-minute measurement. Each subject underwent four treatment strategies, including acupuncture at ST36 (Zusanli), pseudoacupuncture, FIR, and combined acupuncture-FIR at different time points. Response was assessed at 5-minute intervals. Area under arterial waveform at baseline was defined as AreaBaseline, whereas AreaStim referred to area at each 5-minute substage during and after treatment. AreaStim/AreaBaseline was compared at different stages and among different strategies. Autonomic activity at different stages was assessed using low-to-high frequency power ratio (LHR). The results demonstrated increased perfusion for each therapeutic strategy from stage 1 to stage 2 (all p<0.02). Elevated perfusion was noted for all treatment strategies at stage 3 compared to stage 1 except pseudoacupuncture. Increased LHR was noted only in subjects undergoing pseudoacupuncture at stage 3 compared to stage 1 (p=0.045). Reduced LHR at stage 2 compared to stage 1 was found only in combined treatment group (p=0.041). In conclusion, the results support clinical benefits of combined acupuncture-FIR treatment in enhancing peripheral perfusion and parasympathetic activity.

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The blood perfusion mapping in the human skin by photoplethysmography imaging

XII Mediterranean Conference on Medical and Biological Engineering and Computing 2010 - IFMBE Proceedings ◽

10.1007/978-3-642-13039-7_76 ◽

2010 ◽

pp. 304-306 ◽

Cited By ~ 8

Author(s):

U. Rubins ◽

R. Erts ◽

V. Nikiforovs

Keyword(s):

Human Skin ◽

Blood Perfusion

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Prediction human skin temperature in comfort level

Science Proceedings Series ◽

10.31580/sps.v1i3.857 ◽

2019 ◽

Vol 1 (3) ◽

pp. 1-4

Author(s):

Zaina Norhallis Zainol ◽

Masine Md. Tap ◽

Haslinda Mohamed Kamar

Keyword(s):

Thermal Comfort ◽

Skin Temperature ◽

Human Skin ◽

Blood Perfusion ◽

Comfort Level ◽

Working Environment ◽

Percentage Error ◽

Bioheat Equation ◽

Acceptable Error ◽

Human Arm

Thermal comfort is the human subject perceive satisfaction to the work environment. The thermal comfort need to be achieve towards productive working environment. The comfort level of the subject is affected by the human skin temperature. To assess the skin temperature with the sorrounding by conducting human experiment in the climatic chamber. It is rigorous and complex experiment.This study was developed to predict human skin temperature in comfort level with the finite element method and the bioheat equation. The bioheat equation is a consideration of metabolic heat generation and the blood perfusion to solve heat transfer of the living tissue. It is to determine the skin temperature focussing at the human arm. From the study, it is found that the predicted skin temperature value were in well agreement with the experimental results. The percentage error insignificant with acceptable error of 1.05%.

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Utilization of the Django Framework as a Dashboard Model Information System for Raw Material Inventory on PT Bimasakti Karyaprima

Aptisi Transactions On Technopreneurship (ATT) ◽

10.34306/att.v1i2.87 ◽

2019 ◽

Vol 1 (2) ◽

pp. 192-202

Author(s):

Sandro Alfeno ◽

Danang Rifai ◽

Muhammad Saepudin

Keyword(s):

Web Application ◽

Swot Analysis ◽

Raw Materials ◽

Design Method ◽

Test Method ◽

Production Performance ◽

Raw Material ◽

Production Section ◽

Equipment Production ◽

Office Equipment

The aim of the research is to analyze the raw material inventory and design a dashboard system that can help achieve company goals. The research method used is the method of analysis of stash, software design methods, and methods of software testing. The design analysis method used is the SWOT analysis, the design method used is the design concept using UML diagrams, the soft test method uses the Black Box concept. The results achieved are a dashboard system used by the Warehouse Section and Production Section to monitor raw material inventories and production performance. The conclusion of this study is that the dashboard application that has been made can help the Warehouse and Production Section to monitor raw material inventory and production performance in real time. This web application provides information easily, quickly, concisely and interactively which includes raw materials for shoe components, office equipment, production tools and general equipment, inventory planning, recommendations and reports on transactions and raw material requests. Keywords : Dashboard, Material

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Studying the Oscillatory Components of Human Skin Microcirculation

Agache's Measuring the Skin ◽

10.1007/978-3-319-32383-1_62 ◽

2017 ◽

pp. 569-582

Author(s):

Henrique Silva ◽

Hugo Ferreira ◽

Luís Monteiro Rodrigues

Keyword(s):

Human Skin ◽

Skin Microcirculation

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Comprehensive Satisfactory Design Method for Product Designs

Volume 3: 6th Design for Manufacturing Conference ◽

10.1115/detc2001/dfm-21160 ◽

2001 ◽

Author(s):

Eiji Adachi

Keyword(s):

Decision Making ◽

Design Method ◽

Simultaneous Equations ◽

Objective Functions ◽

Identification Methods ◽

Multi Objective ◽

Sensitivity Coefficients ◽

Design Variables ◽

Computer Aided ◽

Market Needs

Abstract Actual product designs aim to fulfill all product requirements of market needs and wants, which are technical or non-technical, logical or illogical, objective or subjective, and quantitative or qualitative. The actual product designs are objective-aiming designs and can be supposed to be multi-objective satisfactory designs with heterogeneous objective functions and dimensional design variables. To realize computer-aided product designs which can obtain rational and satisfactory solutions, we classify the objective functions and contrive methods to deal with non-theoretical, non-technical, subjective, or illogical objective functions as well. This paper shows all of our methods, including an expression of heterogeneous objective functions which consists of objective and evaluated values, a satisfactory design method by simultaneous equations which searches solutions sequentially, identification methods of non-theoretical or non-technical objective functions and sensitivity coefficients for the simultaneous equations, a decision-making method of promising solutions to fulfill product requirements, and also numerical applications of these methods to actual product designs.

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