نتایج جستجو برای: glow
تعداد نتایج: 2925 فیلتر نتایج به سال:
The random urine sample shown in Fig. 1 was collected from a 43-year-old woman with systemic lupus erythematosus. A routine urinalysis (Aution Max AX-4280; Iris Diagnostics) revealed no remarkable findings and, specifically, was negative for protein. The corresponding urine protein concentration, however, was 448 mg/dL (reference interval, 12 mg/dL) as measured with a turbidimetric assay (Cobas...
The Price of Warm Glow This paper presents a model and experimental evidence to explain the “volunteering puzzle" where agents prefer volunteering time to donating money when monetary donations are, ceteris paribus, more efficient for providing resources to charity. In the model agents receive heterogeneous utility from pure and impure altruism (Andreoni 1989) that permits warm glow to vary bet...
Emission spectra of constituent gas species from glow discharge plasmas using argon-helium, krypton-helium, argon-krypton, and krypton-argon gas mixtures were analyzed to elucidate collisional energy transfer between these gas species occurring in the plasma. In the argon-helium mixed gas plasma, the enhancement or quenching of particular Ar II lines was observed when helium was added to an arg...
Luminescence is the emission of photons from electronically excited states. The electron in the in the lowest excited singlet state (S1), has the opposite spin orientation as the second electron in the lower ground state (S0) orbital. The ground state and excited state electrons are said to be paired. Fluorescence is the emission which results from the return to the lower orbital of the excited...
The thermoluminescence (TL) properties of CVD diamond film irradiated with b rays and illuminated with UV and visible light (200–450 nm) have been studied. The film (23mm) was grown for 47 h on monocrystalline silicon. The TL glow curves are similar for b irradiation and short wavelength UV light. The b dose response curves and UV light time response curves exhibit linear–supralinear–sublinear ...
During 1964-65 a continuing investigation was performed to examine the feasibility of obtaining information on the time-changing characteristics of the aurora and night air glow by low-light level image orthlcons at the RadioOptical Observatory of the General Electric Company's Research & Development Center In Schenectady, New York. Although no auroras were detected during this interim period, ...
The PressureSense Glow Plug combines a miniature fiber optic-based cylinder pressure sensor with the automotive glow plug. The 1.7mm diameter sensor is sealed inside a glow plug heater and the sensor signal conditioner is encapsulated into a “smart connector”. The sensor operates on the proven principle of light intensity changes, transmitted by two optical fibers, upon reflection from a deflec...
A detailed evaluation of the analytical characteristics of a particle beam/hollow cathode glow discharge atomic emission spectroscopy (PB/HC-AES) system is described for applications in the area of organic sample analysis. The optimization of sample introduction, nebulization parameters, and glow discharge conditions was performed for the elemental analysis (focusing on C and H) of a group of a...
Amorphous sulfated zirconium hydroxide was promoted with iron or manganese via the incipient wetness technique, to give 0.5–3.5 weight% promoter in the final catalyst. An exothermic reaction during the calcination temperature ramp (to 823 or 923 K) leads to a rapid overheating (“glow”) of the sample. XRD shows that crystallization starts before and progresses during the overheating. The surface...
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