Evolution of skin temperature at different temperature and humidity conditions

2014 ◽  
pp. 201-206
Keyword(s):  
Skin Temperature ◽  
Temperature And Humidity

Mask Acne (Maskne): A New Variant of Acne Mechanica

2021 ◽  
Vol 104 (11) ◽  
pp. 1866-1869
Keyword(s):  
Skin Temperature ◽  
Personal Protective Equipment ◽  
Healthcare Workers ◽  
Distinct Pattern ◽  
Protective Equipment ◽  
Equipment Usage ◽  
Local Increase ◽  
New Variant ◽  
Temperature And Humidity ◽  
Acne Mechanica

Mask acne (maskne) is the new variant of acne mechanica, associated with personal protective equipment usage in healthcare workers. Widespread daily use of facial masks for many hours during the COVID-19 pandemic has been linked to the development of new acne or exacerbation of the previous acne over the masked area, with a distinct pattern, referred to as the “O” zone area around the mouth. Maskne can be caused by friction, irritation, local increase in skin temperature, and humidity, the same mechanism as observed in acne mechanica. Keywords: Maskne; Pathophysiology; Diagnosis; Treatment; Prevention

scholarly journals The interrelationship between air temperature and humidity as applied locally to the skin: The resultant response on skin temperature and blood flow with age differences

2012 ◽  
Vol 18 (4) ◽  
pp. CR201-CR208 ◽  
Author(s):  
Jerrold S. Petrofsky ◽  
Lee Berk ◽  
Faris Alshammari ◽  
Haneul Lee ◽  
Adel Hamdan ◽  
...  
Keyword(s):  
Blood Flow ◽  
Skin Temperature ◽  
Age Differences ◽  
Air Temperature ◽  
Temperature And Humidity

Computerized Telethermographic Assessment in Migraine, with Particular Reference to the Prodromal Phase

Cephalalgia ◽  
1986 ◽  
Vol 6 (4) ◽  
pp. 219-222
Author(s):  
Mario Giacovazzo ◽  
Paolo Martelletti ◽  
Giacomo Valducci
Keyword(s):  
Migraine Attack ◽  
Skin Temperature ◽  
The Other ◽  
Prodromal Phase ◽  
Standard Distance ◽  
Temperature And Humidity ◽  
Temperature Levels ◽  
The Individual

We have studied the angular orbit and supraorbital arteries in 58 patients with classic migraine (36 females, 22 males; age (x), 43.5 years). A Dorex telethermograph apparatus, which utilizes the infrared radiations emitted by a patient, was used. The individual is placed at standard distance, and the temperature and humidity of the environment are kept constant. Three thermographic tests were performed in each patient: the first in basal condition, the other during the visual and/or sensory aura, and the last during the pain phase. The skin temperature levels decreased during the prodromal phase and increased during the migraine attack as compared with the levels obtained in basal conditions. There were significant asymmetries during the pain phase.

Physiological Responses and Thermal, Humidity, and Comfort Sensations in Wear Trials with Cotton and Polypropylene Vests

1976 ◽  
Vol 46 (1) ◽  
pp. 30-38 ◽  
Author(s):  
Z. Vokac ◽  
V. Køpke ◽  
P. Keül
Keyword(s):  
Skin Temperature ◽  
Double Layer ◽  
Gradual Increase ◽  
Energy Output ◽  
Physical Parameters ◽  
Temperature And Humidity ◽  
Cross Country ◽  
Subjective Estimates ◽  
The Brain ◽  
Intermittent Activity

Relations were studied between skin temperature of the back as well as temperature and humidity inside clothing, and subjective estimates of thermal, humidity, and comfort sensations in 5 subjects wearing cross-country ski dress. The 2-h wear trials were performed in a climatic chamber at −2°C and simulated the actual circumstances under which such a dress is worn by alternating periods of intensive walking (20 min) on a treadmill with periods of resting (5–10 min). Each subject participated in 4 trials wearing alternately one of the 4 experimental, double-layer vests (double-cotton, cotton-polypropylene with cotton layer next to skin, same combination with polypropylene layer next to skin, double-polypropylene). Skin temperature of the back was during the experiments systematically lower ( P<0.05) by about 1°C with the double-layer cotton vest than with the double-layer polypropylene vest. Since the physical parameters of the two fabrics were not identical, the findings cannot be definitely attributed to the inherently different properties of the fibers. No significant differences were found in the 4 experimental series either in other objective measurements (temperature and humidity of the microclimate, energy output, total amount of sweat, amount of sweat trapped in the vests) or in subjective estimates of thermal, humidity, and comfort sensations. Gradual increase of skin temperature as well as of temperature and humidity (sweating) of the microclimate was recorded during walking periods. When walking was interrupted by a pause, both the temperature and humidity rose steeply, due to the cessation of bellows ventilation of the clothing, and fell again when walking was resumed. The thermal and humidity sensations on the back reported after the turning-points of the intermittent activity showed opposite direction of changes than those of the recorded parameters— i.e., decrease during pauses and increase after walking was resumed. It is possible that the perception of local sensations was affected by superimposed, central perception of changes in the amount of heat delivered from muscles to the brain receptors. The sensations of comfort seemed to be affected mostly by perception of “warmth” when walking and “cold” when resting.

The effect of environmental temperature and humidity on the skin temperature of Ayrshire calves

1955 ◽  
Vol 45 (3) ◽  
pp. 353-364 ◽  
Author(s):  
W. R. Beakley ◽  
J. D. Findlay
Keyword(s):  
Skin Temperature ◽  
Environmental Conditions ◽  
Environmental Temperature ◽  
Latin Square ◽  
Absolute Humidity ◽  
Saturation Deficit ◽  
Bull Calves ◽  
Temperature And Humidity ◽  
Skin Temperatures

1. The skin temperatures at each of eight positions on the trunks of three 4-month-old Ayrshire bull calves were measured at 5 min. intervals in individual 6 hr. daily exposures to dry-bulb temperatures of 15, 20, 25, 30, 35 and 40° C. at 17 mg./l. absolute humidity, and 30, 35 and 40° C. at 7 mg./l. saturation deficit in a modified form of Latin square arrangement of environmental temperature. The schedule of experiments on each calf lasted 45 consecutive days and consisted of five replications of each of the nine environmental conditions.2. The skin temperatures of the calves all rose with increasing environmental temperature, humidity and time of exposure.

scholarly journals A personalised prosthetic liner with embedded sensor technology: a case study

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
Linda Paternò ◽  
Vimal Dhokia ◽  
Arianna Menciassi ◽  
James Bilzon ◽  
Elena Seminati
Keyword(s):  
Thermal Properties ◽  
Skin Temperature ◽  
Three Dimensional ◽  
Cnc Machining ◽  
Machining Process ◽  
Residual Limb ◽  
Humidity Sensors ◽  
Skin Contact ◽  
Temperature And Humidity

Abstract Background Numerous sensing techniques have been investigated in an effort to monitor the main parameters influencing the residual limb/prosthesis interface, fundamental to the optimum design of prosthetic socket solutions. Sensing integration within sockets is notoriously complex and can cause user discomfort. A personalised prosthetic liner with embedded sensors could offer a solution. However, to allow for a functional and comfortable instrumented liner, highly customised designs are needed. The aim of this paper is to presents a novel approach to manufacture fully personalised liners using scanned three-dimensional image data of the patient’s residual limb, combined with designs that allow for sensor integration. To demonstrate the feasibility of the proposed approach, a personalised liner with embedded temperature and humidity sensors was realised and tested on a transtibial amputee, presented here as a case study. Methods The residual limb of a below knee amputee was first scanned and a three-dimensional digital image created. The output was used to produce a personalised prosthesis. The liner was manufactured using a cryogenic Computer Numeric Control (CNC) machining approach. This method enables fast, direct and precise manufacture of soft elastomer products. Twelve Hygrochron Data Loggers, able to measure both temperature and humidity, were embedded in specific liner locations, ensuring direct sensor-skin contact. The sensor locations were machined directly into the liner, during the manufacturing process. The sensors outputs were assessed on the below amputee who took part in the study, during resting (50 min) and walking activities (30 min). To better describe the relative thermal properties of new liner, the same tests were repeated with the amputee wearing his existing liner. Quantitative comparisons of the thermal properties of the new liner solution with that currently used in clinical practice are, therefore, reported. Results The liner machining process took approximately 4 h. Fifteen minutes after donning the prosthesis, the skin temperature reached a plateau. Physical activity rapidly increased residuum skin temperatures, while cessation of activity caused a moderate decrease. Humidity increased throughout the observation period. In addition, the new liner showed better thermal properties with respect to the current liner solution (4% reduction in skin temperature). Conclusions This work describes a personalised liner solution, with embedded temperature and humidity sensors, developed through an innovative approach. This new method allows for a range of sensors to be smoothly embedded into a liner, which is capable of measuring changes in intra-socket microclimate conditions, resulting in the design of advanced socket solutions personalised specifically for individual requirements. In future, this method will not only provide a personalised liner but will also enable dynamic assessment of how a residual limb behaves within the socket during daily activities.

scholarly journals Study on the influence of underwear on local thermal and moisture comfort of human body

2020 ◽  
pp. 229-229
Author(s):  
Pengpeng Cheng ◽  
Daoling Chen ◽  
Jianping Wang
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Skin Temperature ◽  
Human Body ◽  
Subjective Evaluation ◽  
Composite Fiber ◽  
Clothing Comfort ◽  
Temperature And Humidity ◽  
Better Than ◽  
Objective And Subjective Evaluation

In order to study the influence of underwear on human thermal and moisture comfort in different sports conditions, the objective and subjective evaluation of underwear (including undershirt and underpants) made of three kinds of fabrics were carried out, and the underwear comfort model was established by computational fluid dynamics, and the application prospect of computational fluid dynamics technology in the field of clothing comfort research was prospected. The results show: 1. the underwear combination of different fabrics has certain influence on the thermal and moisture comfort of human body, and the thermal and moisture of fabric of composite fiber is better than that of fabric of single fiber; 2. the temperature and humidity of chest, back, hip and thighs of the human body in different motion states change, and the temperature and humidity of the chest and back change greatly; 3. computational fluid dynamics can accurately predict human skin temperature.

scholarly journals Temperature And Humidity Test Of The Telemetry Tool Modeling In Baby Incubator

2018 ◽  
Vol 9 (1) ◽  
pp. 16-23
Author(s):  
Ansor Usman ◽  
Hendra Marwazi ◽  
Samsul Alam
Keyword(s):  
Health Care ◽  
Skin Temperature ◽  
Monitoring System ◽  
Medical Devices ◽  
Distance Measurement ◽  
Test Measurement ◽  
Department Of Health ◽  
Temperature And Humidity ◽  
Computer Based ◽  
Special Hospitals

Modeling tool is made an attempt to help health care in special hospitals for care in obstetrics and perinatology space. This study used temperature setting range is from 34 ° C to 38 ° C, while for setting the humidity of the range of 0% to 100%, is divided into two parts, namely the design of hardware and software. Tests conducted in the Laboratory of the Department of Health Polytechnic Elektromedik Jakarta II. Design manufacture of modules that do get into the telemetry monitoring system applications, where telemetry tool can be used to monitor the value of an object located at a remote distance applied to medical devices, which will be monitored temperature and humidity is a very important part in the incubator tool baby. The results of modeling design includes testing of skin temperature in the incubator, the test measurement of skin temperature and humidity in the telemetry receiver, test measurement of skin temperature on the thermometer, hygrometer humidity in the test measurement. With the results of the five test measurement was still below the threshold of 10%. It can be concluded that the telemetry tool can perform accurate distance measurement, in accordance with the amount of heat generated by the source and the humidity is a tool incubator. This research can be developed to monitor the temperature and humidity with computer based.

The effect of cushion properties on skin temperature and humidity at the body-support interface

2016 ◽  
Vol 30 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Tzu-Wen Hsu ◽  
Shu-Yu Yang ◽  
Jung-Tai Liu ◽  
Cheng-Tang Pan ◽  
Yu-Sheng Yang
Keyword(s):  
Skin Temperature ◽  
The Body ◽  
Temperature And Humidity ◽  
Body Support
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