نتایج جستجو برای: red fiber
تعداد نتایج: 278320 فیلتر نتایج به سال:
By conventional melting and quenching methods, 3Yb2O3-0.2Tm2O3-xHo2O3 (wt%, x=0.2~1.2) was doped into an easily fiberized tellurite glass with composition of 78TeO2-10ZnO-12Na2O (mol%) to form YTH-TZN78 glasses. Under 976 nm excitation, the direct sensitizing effect of Yb ions (Yb→Ho) and indirect sensitizing and self-depopulating effects of Tm ions (Yb→Tm→Ho) were found to present intense red ...
The effect of multivariate adjustment including folate on the strong protective effect of fiber in foods on colorectal cancer risk in the European Prospective Investigation into Cancer and Nutrition was investigated in 1,721 cases identified in the latest follow-up. The inclusion of an additional 656 cases confirmed our previously published results, with a strong and significant reduction in co...
Abstract Red Mud is a bauxite solid waste which dangerous for the environment because of its alkalinity (10-13). With very high pH, it can interfere with hydrological conditions areas that are directly affected by mud. Efforts to utilize red mud have use-value been widely carried out. consists Gibbsite, Hematite and Cristobalite. The main ingredients Fe 2 O 3 , Al SiO still be utilized 44.66%, ...
The changes of rat muscle fiber structure and fiber types after the reunification of the nerve and cross-innervation between the nerve to M. soleus (SOL) and M. extensor digitorum longus (EDL) were cytologically studied and the following results were obtained: 1. After the reunification of the nerve, the tendency toward grouping to a single fiber type was observed, although in normal muscle, th...
A fiber-based multimodal imaging system that combines multiphoton microscopy (MPM) with Fourier domain optical coherence microscopy (OCM) is reported. The system uses a fiber-based femtosecond laser, a fiber coupler, and a double-clad fiber (DCF) device. The fiber laser has a central wavelength of 1.04 μm and bandwidth of 29 nm. Longer excitation wavelength is used to increase penetration depth...
Parvalbumin is a muscle protein that aids in relaxation from contraction. Parvalbumin binds myoplasmic Ca(2+) during contractions, reducing calcium concentration and enhancing relaxation. Different isoforms of parvalbumin have varying affinities for calcium, and relaxation rates in skeletal muscle may be affected by variations in the isoforms of parvalbumin expressed. This study examines the ef...
Magnified red-free photography reveals distinct differences in the appearance of the peripapillary retinae in two commonly confused conditions. Eyes with congenitally blurred disc margins have normal striated nerve fiber bundle patterns and glistening vascular highlights that are also visible with a direct ophthalmoscope and a bright red-free light source. In eyes with incipient papilledema, th...
sensor which uses whispering gallery modes (WGMs) in dielectric microspheres for biomolecular detection. The WGMs are excited by evanescent coupling to an etch-eroded single mode optical fiber. WGM resonance positions are detected as Lorentzian dips in the intensity of the fiber-transmitted light. The polarization of molecules interacting with the evanescent field of the WGM on the microsphere ...
We demonstrate a fiber-based, three-color femtosecond source for simultaneous imaging of three fluorescent proteins (FPs) using two-photon fluorescence microscopy (2PM). The three excitation wavelengths at 775 nm, 864 nm and 950 nm, are obtained through second harmonic generation (SHG) of the 1550-nm pump laser and the 1728-nm and 1900-nm solitons generated through soliton self-frequency shift ...
The tapered SiO2 nanofiber for the trap [1] is drawn from a conventional optical fiber in a hydrogen-oxygen flame [2–4]. Fig. SM1 shows the radius r(z) as a function of axial coordinate z from SEM measurements for a set of 8 fiber tapers. The central region ∆z yields an average radius r(z) = 215 ± 10 nm for −3 < z < 3 mm, as shown in (b). The red curve is a theoretical calculation for r(z) [2] ...
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