[PDF] Top 20 Characterization and modelling of induced "virtual" perturbations in chirped pulse φ OTDR

... section of the fiber induces a local variation of the refractive ...a chirped pulse φ-OTDR system, the variation of the refractive index causes a local shift of the ... See full document

... linewidth of 1.6 MHz emitting at 1546.66 nm and working in continuous ...current and temperature controller to select the laser central ...signal in the laser driver, which introduced a ... See full document

... use of linearly chirped probe pulses in phase sensitive-(Φ)OTDR technology has been recently demonstrated to allow for high-resolution, quantitative and dynamic temperature or ... See full document

... aim of this letter is to derive and experimentally validate a model for the virtual perturbation induced by the cumulative round-trip time delay ...changes in the refractive index ... See full document

... spectrum and spectral phase retrieval of femtosecond pulses at 74 Hz refresh rate by a spectral interferometry ...measured and generated with a pulse shaper based on a micro-machined ... See full document

... analysis of major, minor and trace elements present in the meteorites ...means of LIBS, it is possible to quantify some trace elements which are impossible to detect or quantify by other ... See full document

... research and developments in Modular ...repetition of the same geometry or module, for the generation of large virtual environments for the simulators that are designed by ...share ... See full document

... economically and politically the western world to a security of supply ...One of the main strategical reason is the great unbalance between producer regions (Saudi Arabia, Gulf of Mexico, ... See full document

... However, in ZDF rats the CB2 antagonist was not capable of block- ing the WIN ...doses of WIN were required to obtain signi fi cant antino- ciception in ZDF ...rats. In any case, ... See full document

... most of them use commercial codes as platforms for their ...included in all the models using kinematic or isotropic hardening laws in most of ...welding of thick steel plates. They ... See full document

... Although some authors have used this test to derive material parameters for different constitutive models (Schulze-Bauer and Holzapfel 2003; Rodriguez et al. 2007), the aim of the pre[r] ... See full document

...  Challenges in Diagnosis, Management, and Treatment of Allopurinol-­Induced DRESS Syndrome: Case Report and Literature Review. Allopurinol-­Induced Recurrent DRESS Sy[r] ... See full document

... region of the RNA of the HCV, and produce the increase of viral RNA in infected liver ...factor in the host and a potential target for the treatment of infec- tions ... See full document

... ml of the enzyme ...release of reducing groups was determined by the dinitrosalicylic acid method (Miller, ...unit of PG was defined as the amount of enzyme that released 1 µ mol of ... See full document

... qualitative and quantitative traits of the leaves, pod, seed, and architecture of each plant were measured, as was the reaction of the common bean plants to disease (Table ...evaluated ... See full document

... FHR and RF1 is comparable to MIC reported in studies with other ...plants in Ethiopia: roots of Calpurnia aurea, seeds of Ocimum basilicum, leaves of Artemisia abyssinica, Croton ... See full document

... 兲 of a pulsed Q-switched Nd:YAG laser with a top-hat en- ergy profile 共 Spectron Model SL 284; pulse width, 5 ns; nominal beam diameter, 4 mm 兲 was used to irra- diate the ...focus and cylindrical ... See full document

... Laser Induced Breakdown Spectroscopy (LIBS), also found in the literature as Laser Induced Plasma Spectroscopy (LIPS), is an analytical technique that allows obtaining the elemental composition ... See full document

... removal of infectious endocarditis vegetations on pacemaker ...was induced. The trace shows the progressive development of a giant J wave through representative moments in a period of ... See full document

... evolution of the optical pulse is known, the Rayleigh scattering process is simulated using the algorithm described in ...[9]. In particular, the backscattering process is modelled by a set ... See full document