Communication
The Benefit Of The Doubt (01/01/1959 to 31/12/1959) When Dr. Fidel Castro seized power in Cuba at the beginning of the year, he enjoyed wide international sympathy as the brave rebel who had overthrown a brutal tyranny. With every passing month, however, doubts about...
Communication
For wave propagating in periodic structures made of semiconductor material, the build-in grating or corrugation induces dielectric or refractive index perturbation, and such perturbation results in an interaction between the forward and backward propagating waves....
Communication
Distributed feedback (DFB) laser is the most widely used light source in optical communication systems. A DFB laser is a laser where the whole resonator consists of a periodic structure, which acts as a distributed reflector in the wavelength range of laser emission,...
Medicine
practical way to monitor smoking and environmental factors Cigarette smoking is the principal cause of premature death and disability in the United States. Tobacco smoking is causally linked to 13 different types of neoplastic disease. Of the 230,000 Americans who are...
Communication
The OFDR system provides information on the local characteristic of fiber network with high resolution and moderate range. It measures the backscatter signal during the entire measurement span as a function of frequency in a complex fashion, and then...
Communication
In order to confirm the amplitude and frequency of a laser has been modulated independently, we need a detection method that is capable of decoupling these two signals. The frequency variation caused by carrier induced effect is usually very small. For frequency chirp...
Communication
The easiest way is to change the current running through the laser diode, which is also called direct modulation. More current leads to more optical gain, and more gain yields more output intensity from the laser diode. The problem with directly modulation is that...
Communication
Classification of social unrest Social unrests can be classified in terms of causes, effects and forms of emergence. John E Archer in his book “Social Unrest and popular protest in England” introduced an overall classification for causes of social unrests:...
Communication
In an uncoated, pure Bragg grating structure, two strongest reflection peaks present at each side of forbidden band . When the Bragg grating structure is integrated to a laser diode to form a distributed feedback (DFB) laser, these two reflection peaks will be the two...
Communication
Although a pure FM signal is highly desired in applications such as spectroscopy, sensing, and communication, it is theoretically very difficult to realize. Very few works claimed to have achieved pure FM signal. The existing methods to generate pure frequency...
Communication
Pioneers of social unrest research The study of social unrests in modern context was initiated by 1960s. Before that, just a few historians had shown any inclination to follow the issue of civil disorder and social unrests. Frank Ongley Darvall is an exception. As a...
image processing
Lexicon Since our approach is based mainly on lexical cues, we need a lexicon of word pairs, which is used during the alignment rocess. The lexicon can be prepared manually within CSV or XLS file and updated with new word pairs as necessary. owever, n order to...
image processing
Misalignment Patterns A parallel text (from now on it will be called bitext) is extracted from two texts, and there is no guarantee that the text segments rom each text are aligned together. In fact, there are many factors that cause and exacerbate the bitext ...
Communication
Semiconductor laser diodes have unparalleled broad range of application, including optical data transmission and storage , metrology , spectroscopy , material processing , and various kinds of medical treatments . They are made of semiconductor material that can...
image processing
Alignment Challenges The main challenge for alignment is that sentences/segments do not necessarily map one to-one, and there are many possible atterns for misalignment, as will be shown in the following section. The bottom line in the alignment process is to ...
MATLAB
Stroke Stroke provides an excellent model for the study of , in part due to its prevalence. Strokes are unfortunately quite common: 1 in 6 men and 1 in 5 women worldwide will suer a stroke, and it can aect people of any age: around 27 per 100,000 perinatal (< 30...
