نتایج جستجو برای: total pi electron energy
تعداد نتایج: 1693074 فیلتر نتایج به سال:
background: understanding of the incident electron energy and angular distributions from clinical electron accelerators (linacs) is important for dosimetry and treatment planning. the most important goals of this study were to evaluate the energy fluence and angular distributions of electron beams from a neptun 10pc linac using the monte carlo (mc) code. materials and methods: the linac electro...
OBJECTIVE To explain the energetic physiologic basis for acupuncture electroconductance effects and for gas discharge visualization (GDV) assessment methods, using a quantum biophysical model of entropy and information flows. DESCRIPTION The main reservoir of free energy in biologic processes is electron-excited states of complex molecular systems. Communities of delocalized excited pi-electr...
Abstract Using data taken at 29 center-of-mass energies between 4.16 and 4.70 GeV with the BESIII detector Beijing Electron Positron Collider corresponding to a total integrated luminosity of approximately 18.8 , process e^+e^- \to p \bar{p} \bar{n} \pi^{-} + c.c. is observed for first time statistical significance 11.5\sigma . The average Born cross sections in energy...
We report highly efficient organic photosensitizers containing pi-conjugated alkoxy-substituted oligophenylenevinylene linkers with electron donor-acceptor units for dye-sensitized solar cells. TA-DM-CA showed an overall solar-to-energy conversion efficiency of 9.67% at AM 1.5 illumination (100 mW cm(-2)).
Abstract We present calculations of the photoionization (PI) cross sections rubidium and cesium Rydberg atoms for light with wavelengths ranging from infrared to ultraviolet, using model potentials Marinescu et al (1994 Phys. Rev. A 49 982). The origins pronounced PI minima are identified by investigating free-electron wavefunctions. These include broad in nS ϵP channels both Rb Cs, energy ϵ , ...
Ever since the introduction of the chemiosmotic hypothesis [l] for the coupling of phosphorylation to electron flow, the role of the two major components (pH gradient, ApH, and membrane potential, a$) of the total electrochemical energy gradient utilized for ATP synthesis has been actively investigated in several systems [2-91. The importance of both the proton gradient [6,7] and the membrane p...
High resolution angle-resolved photoemission spectroscopy data along the (0,0)-(pi,pi) nodal direction with significantly improved statistics reveal fine structure in the electron self-energy of the underdoped (La2-xSrx)CuO4 samples in the normal state. Fine structure at energies of (40-46) meV and (58-63) meV, and possible fine structure at energies of (23-29) meV and (75-85) meV, have been id...
We report single-wall carbon nanotube (CNT) doped liquid crystal materials which show significant improvement in the response time for optical controlled birefringence (OCB) cells. Four different types of liquid crystals (LCs) were chosen to mix with CNTs and they demonstrated similar results in improving the response time. Experimental results show that the anchoring energy at alignment layers...
BACKGROUND High intakes of phytochemical-rich foods have beneficial effects on lipid profiles and cardiovascular disease (CVD). In this study, we assessed the association between the dietary phytochemical index (PI) and changes in lipid profile after 3-year follow-up among Iranian adults. METHODS This longitudinal study was conducted in 1983 subjects, aged 19-70 years, selected among particip...
Collisions of 0-4 eV electrons with thin DNA films are shown to produce single strand breaks. The yield is sharply structured as a function of electron energy and indicates the involvement of pi* shape resonances in the bond breaking process. The cross sections are comparable in magnitude to those observed in other compounds in the gas phase in which pi* electrons are transferred through the mo...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید