نتایج جستجو برای: spectroscopy instruments

تعداد نتایج: 232436  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Ernst K Zinner Frederic Moynier Rhonda M Stroud

Recent developments in analytical instrumentation have led to revolutionary discoveries in cosmochemistry. Instrumental advances have been made along two lines: (i) increase in spatial resolution and sensitivity of detection, allowing for the study of increasingly smaller samples, and (ii) increase in the precision of isotopic analysis that allows more precise dating, the study of isotopic hete...

2003
C. Wigger

The Gamma-ray instruments on-board INTEGRAL offer an unique opportunity to perform time resolved analysis on GRBs. The imager IBIS allows accurate positioning of GRBs and broad band spectral analysis, while SPI provides high resolution spectroscopy. GRB 030501 was discovered by the INTEGRAL Burst Alert System in the ISGRI field of view. Although the burst was fairly weak (fluence F20−200 keV ≃ ...

2016
Nina Molchan Dmitriy Eliseev Valery Fertikov

The aim of the work was the assessment of capability for the change control in the structure of a compact material of pelletized heatproof nickel alloy grade EP741NP using the atomic emission method. The proposed method of evaluation is based on the statistical significance of the analytical response differences during atomic emission spectroscopy of solid specimens taken from one sample before...

2014

Solids with strong electron–electron interaction, namely strongly correlated electron systems (SCES), have various physical properties, such as non-BCS superconducting, colossal magneto-resistance, heavy fermion and so on, which cannot be predicted by first-principle band structure calculation. Due to the physical properties, the materials are the candidates of the next generation functional ma...

1995
Wray L. Buntine Tarang Patel

The Optical Plume Anomaly Detection (OPAD) program at the NASA Marshall Space Flight Center is UBing plume spectroscopy for the diagnosis of the Space Shuttle Main Engines. A challenging part of this program is matching high resolution spectral data with a physicist’s model of spectroscopy to produce estimates of metallic erosion through the plume. This paper describes the discovery process use...

Journal: :Dental historian : Lindsay Club newsletter 2006
Rufus M Ross

John Maxwell Fairley was a prolific collector and amassed quite a collection of old dental instruments, obtained mainly from the North East of Scotland. John qualified LDS in 1941 and a year later graduated BDS from St Andrews University. He was a member of the Lindsay Society in 1985 and on the committee from 1988 until 1990. One of his contributions to dental history was a comprehensive accou...

Journal: :Computer aided surgery : official journal of the International Society for Computer Aided Surgery 1999
H Das H Zak J Johnson J Crouch D Frambach

A tool was developed that assists surgeons in manipulating surgical instruments more precisely than is possible manually. The tool is a telemanipulator that scales down the surgeon's hand motion and filters tremor in the motion. The signals measured from the surgeon's hand are transformed and used to drive a six-degrees-of-freedom robot to position the surgical instrument mounted on its tip. A ...

2004
U. Mukherjee B. Paul

We present the timing and spectral properties of the transient Be/X-ray binary pulsar 3A 0535+262 during quiescence using three observations with the narrow field imaging instruments (NFI) of BeppoSAX. Assuming a distance of 2 kpc for this system, the 2–10 keV X-ray luminosities measured from the three observations are in the range of 1.5–4.0 × 10 33 erg s −1 , indicating a very low rate of acc...

Journal: :AORN journal 2010
Nancy Chobin

The need for properly trained sterile processing staff members has grown with the increased sophistication of surgical procedures. In 1998, I conducted a survey of hospitals about various aspects of training sterile processing personnel, including the length of time for training employees to process general surgical and specialty surgical instruments. To evaluate trends, I conducted a second su...

2009
I Selvaggio F Cadeddu MG Muzi F Andreoli D Amabile G Milito

Background Haemorrhoidectomy is frequently associated with significant postoperative pain and prolonged hospital stay; different techniques and devices have been developed to overcome these problems, including modifications of the technique (excision without legation) and introduction of new surgical instruments (LigasureTM, Harmonic ScalpelTM). We evaluated the surgical outcomes of Milligan Mo...

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