stimulated scattering of light

Ngày tải lên: 29/06/2014, 09:20

... minutes. Because administration is vastly reduced, the cost of such light licenses” has been dramatically reduced, encouraging adoption of competitive high data rate services at the e-band frequencies. It ... is important to note that despite the name light licensing” the possession of such a license still gives the link operator the same full benefits of a traditional link license, including link ... licensee can register for any number of individual e-band link in the USA and its territories. Application for an e-band license is via the website of one of three database managers. The FCC...

Ngày tải lên: 10/12/2013, 19:15

... studying visible light because the slit spacing is on the order of the wavelength of the light (~ few tenths of microns)  Visible light is a very small part of the spectrum of electromagnetic waves. ...  Conclusions of diffraction picture on the screen:  Depending on the size of aperture, the number of open zones m is odd or even: • If m is odd → at the center point P there is a light spot • ... properties of wave processes, Huygen introduced the concept of wave front, and the rule how to draw a wave front from known sharp of at some former time  We can squeeze more resolution out of a given...

Ngày tải lên: 17/01/2014, 04:20

... XX Chapter XX Quantum theory of light Quantum theory of light §1. Blackbody radiation. Planck’s theory of radiation §2. Photoelectric effect. Einstein’s theory of light §3. Compton scattering • Therefore ... confimation of the quantum nature of light, and particularly, of X-rays. 3.1 Experimental results: • The wavelength of the incoming monochromatic X-rays:  • The wavelength of the scattering X-rays: ... earlier Planck’s theory of radiation, the postulates of Einstein’s theory is as follows: Light consists of small “packages” of energy called photons or light quanta. The energy of a photon is =...

Ngày tải lên: 24/01/2014, 07:20

... appli- cation of these two light sources for tens of thousands of years. 1.1.1 Daylight architecture In the case of daylight this meant consi- stently adapting architecture to the requirements for lighting ... the Lighting Technology department at Darmstadt University of Technology until 1978. Joined Erco in 1979 as Head of Lighting Technology. Professor of Lighting Techno- logy in the Faculty of Architecture ... the development of more efficient artificial light sources, the knowledge that has been gained of day- light technology was now joined by the scope offered by artificial light. Light no longer...

Ngày tải lên: 16/02/2014, 20:20

... orientation. The tilt of LH2 dimers was further studied by measuring the protruding profiles of each LH2 within the dimer on the basis of the height differences of both sides and the size of LH2’s (Fig. ... The inset of Fig. 4A shows a scheme of the packing config- uration of dimers. Such a specific arrangement is exemplified in the inset of Fig. 4B, in which the up and down configuration of LH2’s can ... diameter of up to 2 lm and a height of 6.5 ± 1.0 nm (n = 20). Areas of empty lipid bilayer without incorporated LH2’s had an average height of 4.0 ± 0.7 nm (n = 20). Already at the low magnification of...

Ngày tải lên: 18/02/2014, 18:20

... other of the two chief functions of the Hands of the Cause. A message of 3 June 1957 celebrated the action of the Israeli government in executing the final decision of the court of appeals of that ... communities of both East and West stimulated an expansion in the teaching work and a deepening of the friends' understanding of the implications of the Faith's message. Century of Light by ... ignorant, destroying the foundation of true humanity. The gift of God to this enlightened age is the knowledge of the oneness of mankind and of the fundamental oneness of religion. War shall cease between...

Ngày tải lên: 21/02/2014, 08:20

... experiment of AVP -stimulated enhance- ment of the surface level of P-LAP. Cells were treated with various concentrations of AVP for 30 min at 37 °C and then biotinylated. (C) Kinetic analysis of AVP -stimulated ... in the rate of hydrolysis of S-benzyl-Cys-MCA, a preferential synthetic substrate for the enzyme (data not shown). The role of vasopressin receptors in AVP -stimulated translocation of P-LAP AVP ... and Ó FEBS 2003 Vasopressin -stimulated translocation of P-LAP (Eur. J. Biochem. 270) 1989 Involvement of the V 2 receptor in vasopressin -stimulated translocation of placental leucine aminopeptidase/oxytocinase in...

Ngày tải lên: 08/03/2014, 02:20

... absorption at 680 nm (blue–green light) and 700 nm (red and far-red light) , respectively. State 1 is induced by excess PSI light (light 1) and State 2 by excess PSII light (light 2). State 1-to-State ... process of state transitions represents a short-term adaptation of the photosynthetic apparatus to the con- ditions of imbalanced illumination of PSII or PSI. It occurs on a timescale of seconds ... over- excitation of PSI (or preferential illumination with light 1), oxidation of the PQ pool occurs followed by de-activation of LHCII-specific kinase(s) and dephos- phorylation of mobile LHCII...

Ngày tải lên: 16/03/2014, 06:20

... dependence of the backscattering cross section contains information on the shape of the object. 3 Integral Representations of Scattering and Born Approx- imat ion 3.1 Integral Expression for Scattering ... Remote Sensing of a Three-Dimensional Scattering Medium with Inhomogeneous Profiles Passive Remote Sensing of a Three-Dimensional Random Medium Thermal Emission of Layers of Spherical Scatterers ... Basic Scattering Parameters 2 Scattering Amplitudes and Cross Sections 2 Scattering Amplitude Matrix 6 Rayleigh Scattering 9 Rayleigh Scattering by a Small Particle 9 Rayleigh Scattering...

Ngày tải lên: 17/03/2014, 13:40

... which govern the operation of other light sources, such as lasers. 1.1 EMISSION OF THERMAL LIGHT We have all undoubtedly encountered thermal light in the form of emission of light from a red-hot object ... production of light in its many forms: everything from incandescent lamps to lasers. In this chapter we exam- ine the fundamental nature of light itself as well as one of the most basic sources of light: ... EMISSION in the form of visible light. The largest portion of the electrical energy injected into the system appears as heat and infrared light. Various forms of light use various means of excitation....

Ngày tải lên: 17/03/2014, 14:28

... Last year. Astronaut Fox was the pilot on the first flight of the space-plane 'Space Bird One'. I remember the day of the take-off. It was a beautiful day -sunshine, blue sky, and ... runway: the part of an airport where planes land and take off shark: an often dangerous fish with sharp teeth and a triangle-shaped fin on its back spear-fishing: a way of killing fish by ... high buildings. There were circles of lights, great wheels that went round and round. They changed color all the time, like rainbows. And there were bridges of light - long, very thin bridges....

Ngày tải lên: 20/03/2014, 16:18

... poor light- emitting cells seemed to be useful as a control to confirm that the biosynthesis of flavins is stimulated in the cells strongly emitting light. Therefore, we measured the amount of light ... with those of seven species. Amino acid identity (%) in the sequences of five Rib proteins of P phosphoreum (P.p.) or V. fischeri (V.f.) with respect to one of the seven species and number of amino ... than the parent. The evidence above supports that the function of the lux operon is not to produce light, and light is a by-product of the bacterial luciferase [17,30]. Van den Berg et al. divided...

Ngày tải lên: 31/03/2014, 08:20

... physics of stars and massive black holes. The ÿrst light from stars and quasars ended the “dark ages” 2 of the universe and initiated a “renaissance of enlightenment” in the otherwise fading glow of ... below, in the case of reionization the linearity of the physics means that F HII is a very good approximation to Q HII up to the end of the overlap phase of reionization. The model of individual H ... The abundance of dark matter halos In addition to characterizing the properties of individual halos, a critical prediction of any theory of structure formation is the abundance of halos, i.e.,...

Ngày tải lên: 24/04/2014, 17:06

Ngày tải lên: 04/06/2014, 12:35

Ngày tải lên: 05/06/2014, 11:26