نتایج جستجو برای: photoelectric

تعداد نتایج: 7215  

Journal: :Journal of clinical pathology 1970
S M Lewis B J Burgess

A number of photoelectric haemoglobinometers have been evaluated as to their suitability for haemoglobinometry in the routine clinical laboratory. They have been tested for accuracy, precision, linearity of response, instrument comparability and, where relevant, for carry-over. The advantages and defects of each are described.

Journal: :Dalton transactions 2013
Fengyan Li Fanzhi Meng Lifang Ma Lin Xu Zhixia Sun Qiao Gao

The first 3D pure inorganic framework based on heteropolymolybdate anion [V2Mo16O58](10-) has been synthesized and its photoelectric properties demonstrated.

Journal: :Investigative ophthalmology 1971
R E Christensen I Posalski R Wong H Weisman

Ocular blood flow in dogs was monitored loith the use of a specially designed photoelectric plethysmograph transducer. The ocular pulse waves demonstrated were (1) of low amplitude, (2) coincident with cardiac systole, and (3) rapidly affected by stimuli known to influence cerebral blood flow. Changes in ocidar pulse amplitude correlated ivith concurrent blood gas analyses (arterial COi and O!)...

1999
H. M. Przewlocki

A comprehensive model is presented of the internal photoemission in MOS systems, at low electric fields (| | < 104 V/cm) in the dielectric. Model equations are separately solved for the case of zero photocurrent (J = 0) and for nonzero photocurrent (J ≠ 0), allowing calculation of various photoelectric characteristics of MOS structures. These calculated characteristics are shown to remain in ex...

Journal: :Physical review letters 2015
Thomas Juffmann Brannon B Klopfer Gunnar E Skulason Catherine Kealhofer Fan Xiao Seth M Foreman Mark A Kasevich

The emission times of laser-triggered electrons from a sharp tungsten tip are directly characterized under ultrafast, near-infrared laser excitation at Keldysh parameters of 6.6<γ<19.1. Emission delays up to 10 fs are observed, which are inferred from the energy gain of photoelectrons emitted into a synchronously driven microwave cavity. Few femtosecond timing resolution is achieved in a config...

2013
Zhaocun Zong Hongxia Wang Lingmin Kong

PbTe/Pb-based nanocomposite was assembled by combining the regular PbTe/Pb nanostructure and the ZnxMn1-xS nanoparticles; the photoelectric property of the nanocomposite was measured in situ. The results showed that the through current of the nanocomposite had an obvious increase compared to that of the individual PbTe/Pb nanomaterial under the same irradiation conditions. The improvement of ph...

2014
Zhen Yan Hui Zhao

Studying out isochronous and automatic project about three-dimensional imaging system of dairy cow forming by computer, CCD video camera, frame grabber, photoelectric switch, SCM, automatic door, electric barrier etc. SCM detects signal of photoelectric switch, and it makes sure info of the orientation of dairy cow. Computer control frame grabber to grab image. The dynamic link libraries techno...

2005
WARREN C. JOHNSON

Applications The Eimer and Amend Photoelectric Colorimeter can be used wherever "visual" colorimetric methods are employed. Published determinations with this type of instrument include the following: Fluorides, HCN (turbidity), Blood sugar, Urine sugar, Blood creatinine, Cholesterol, Hemoglobin, Indican, Bilirubin, Nitrogen, Blood protein, Urine protein, Spinal fluid protein, Urea, Creatine, G...

Journal: :Applied physics letters 2015
Xi Zhang Hongrui Jiang

Photo-self-charging cells (PSCs) are compact devices with dual functions of photoelectric conversion and energy storage. By introducing a scattering layer in polymer-based quasi-solid-state dye-sensitized solar cells, two-electrode PSCs with highly compact structure were obtained. The charge storage function stems from the formed ion channel network in the scattering layer/polymer electrolyte s...

2009
L. Miaja-Avila J. Yin S. Backus G. Saathoff M. Aeschlimann M. M. Murnane H. C. Kapteyn

We show that ultrafast surface science studies using the laser-assisted photoelectric effect can benefit from longer-wavelength infrared dressing beams. We compare soft-x-ray photoemission from a Pt 111 surface dressed by 1300 and 780 nm light. Using 1300 nm light, the amplitude of the laser-assisted photoelectric signal is enhanced sevenfold compared with 780 nm. This allows lower dressing las...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید