scholarly journals Development of a Low-Cost and Vibration-Free Constant-Temperature Chamber for Precision Measurement

2015 ◽  
pp. 1
1997 ◽  
Vol 74 (8) ◽  
pp. 958
Author(s):  
Charles G. Shevlin ◽  
Ward Coppersmith ◽  
Christopher Fish ◽  
Stanley Vlock ◽  
William Vellema

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Somashekhar Nimbalkar ◽  
Harshil Patel ◽  
Ashish Dongara ◽  
Dipen V. Patel ◽  
Satvik Bansal

Aim. EMBRACETMis an innovative, low cost infant warmer for use in neonates. It contains phase change material, which stays at constant temperature for 6 hours. We surveyed paediatricians using EMBRACETMregarding benefits, risks, and setup in which it was used in Gujarat.Methods. Questionnaire was administered telephonically to 52 out of 53 paediatricians.Results. EMBRACETMwas used for an average of 8.27 (range of 3–18, SD = 3.84) months by paediatricians. All used it for thermoregulation during transfers, for average (SD) duration of 42 (0.64) m per transfer, 62.7% used it at mother’s side for average (SD) 11.06 (7.89) h per day, and 3.9% prescribed it at home. It was used in low birth weight neonates only by 56.9% while 43.1% used it for all neonates. While hyperthermia was not reported, 5.9% felt that EMBRACETMdid not prevent hypothermia. About 54.9% felt that they could not monitor the newborn during EMBRACETMuse. Of paediatricians who practiced kangaroo mother care (KMC), 7.7% have limited/stopped/decreased the practice of KMC and substituted it with EMBRACETM.Conclusions. EMBRACETMwas acceptable to most but concerns related to monitoring neonates and disinfection remained. Most paediatricians felt that it did not hamper KMC practice.


1994 ◽  
Vol 57 (11) ◽  
pp. 1019-1021 ◽  
Author(s):  
J. J. RODRIGUEZ-JEREZ ◽  
M. AUSILIA GRASSI ◽  
TIZIANA CIVERA

A modification of Lerke enzymic method for histamine determination has been realized. We have observed a modification of the optimum wavelength depending on incubation time at constant temperature of 37°C. A wavelength of 580 nm is recommended, with a incubation time of 15 min. At these conditions the linearity was observed among 1 and 25 ppm (μg/g) of histamine. This technique is a reliable method of screening in food samples and bacterial strains, with low sample preparations requirements, a short incubation time and a low cost.


2006 ◽  
Vol 113 ◽  
pp. 435-441 ◽  
Author(s):  
Xiao Kang Liu ◽  
Dong Lin Peng ◽  
Xing Hong Zhang ◽  
Xi Hou Cheng

A theory of time-space coordinate transformation is presented for measuring space with time. A novel type of displacement sensor named time grating is developed, and methods of electronic rectifying, self-compensation and self-correction are proposed to intelligentize the sensor. Experiment results coming from applications conform to the validity of the proposed theory and methods. The experiment and test results show that high-precision measurement is achieved without high-precision manufacture and that angular displacement is measured very accurately without a dividing scale, which embeds the remarkable characteristics of low cost but high accuracy to the time grating sensor.


Sign in / Sign up

Export Citation Format

Share Document