نتایج جستجو برای: frequency meter

تعداد نتایج: 508236  

Journal: :Archives of disease in childhood. Fetal and neonatal edition 2003
L Buckland N Austin A Jackson T Inder

OBJECTIVE To determine the levels of sound to which infants are exposed during routine transport by ambulance, aircraft, and helicopter. DESIGN Sound levels during 38 consecutive journeys from a regional level III neonatal intensive care unit were recorded using a calibrated data logging sound meter (Quest 2900). The meter was set to record "A" weighted slow response integrated sound levels, ...

Journal: :The New England journal of medicine 1996
W P McGuire W J Hoskins M F Brady P R Kucera E E Partridge K Y Look D L Clarke-Pearson M Davidson

BACKGROUND Chemotherapy combinations that include an alkylating agent and a platinum coordination complex have high response rates in women with advanced ovarian cancer. Such combinations provide long-term control of disease in few patients, however. We compared two combinations, cisplatin and cyclophosphamide and cisplatin and paclitaxel, in women with ovarian cancer. METHODS We randomly ass...

2017
Jun Mo Zhongliang Deng Buyun Jia Xinmei Bian

Digital multimedia broadcasting signal is promised to be a wireless positioning signal. This paper mainly studies a multimedia broadcasting technology, named China mobile multimedia broadcasting (CMMB), in the context of positioning. Theoretical and practical analysis on the CMMB signal suggests that the existing CMMB signal does not have the meter positioning capability. So, the CMMB system ha...

2017
Imtiaz Parvez Arif I. Sarwat Anurag K. Srivastava

In the smart grid, smart meters, and numerous control and monitoring applications employ bidirectional wireless communication, where security is a critical issue. In key management based encryption method for the smart grid, the Trusted Third Party (TTP), and links between the smart meter and the third party are assumed to be fully trusted and reliable. However, in wired/wireless medium, a man-...

2016
Khalid A. Al-Rubeaan Amr T. M. Saeb Dhekra M. AlNaqeb Hamed M. AlQumaidi Turki A. AlMogbel

OBJECTIVES To assess the rate of bacterial contamination of the multi-use vial and single-use packed glucose meter strips, and to identify the type and frequency of various bacterial contamination in different hospital wards. METHODS This prospective observational study was conducted by a team from the Strategic Center for Diabetes Research in 7 general hospitals in the Central region of Saud...

Journal: :international journal of occupational hygiene 0
mohammad hossein beheshti parviz ghandhari

oroginal article tiller is a handy multi – a purpose tractor is used in agriculture. the noise emitted from tiller may be seriously affected auditory system users. the purpose of this study was to evaluate the exposure to noise in operators of this device. in this study 36cultivator tiller was examined. measurement of sound is based in iso 5131-1996 and iso 7216 standard and was conducted in in...

2014
Susan Stockton Karen Breshears David McA. Baker

BACKGROUND Optimal human function and performance through diet strategies are critical for everyone but especially for those involved in collegiate or professional athletics. Currently, individualized medicine (IM) is emerging as a more efficacious approach to health with emphasis on personalized diet strategies for the public and is common practice for elite athletes. One method for directing ...

2015
Andrew Bell Hero P. Wit Li Zuo

The vibrating reed frequency meter, originally employed by Békésy and later by Wilson as a cochlear model, uses a set of tuned reeds to represent the cochlea's graded bank of resonant elements and an elastic band threaded between them to provide nearest-neighbour coupling. Here the system, constructed of 21 reeds progressively tuned from 45 to 55 Hz, is simulated numerically as an elastically c...

2010
Baoding Zhang Yan Zhang

Manual meter reading was main way in traditional water management. It was not only waste of human and material resources, but also very inconvenient. Especially in recent years, with the emergence of a number of high residential, this way of water management was obviously inefficient. In this paper, based on the study of existed water meters, a kind of design schema of intelligent water meter w...

2018
Guochao Wang Lilong Tan Shuhua Yan

We report on a frequency-comb-referenced absolute interferometer which instantly measures long distance by integrating multi-wavelength interferometry with direct synthetic wavelength interferometry. The reported interferometer utilizes four different wavelengths, simultaneously calibrated to the frequency comb of a femtosecond laser, to implement subwavelength distance measurement, while direc...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید