China
Africa
Explore chapters and articles related to this topic
Discrete Mathematics
Published in Dan Zwillinger, CRC Standard Mathematical Tables and Formulas, 2018
The incidence structure (X,B) $ (X, B) $ is called a t-(v,k,λ) $ t - (v, k, \lambda ) $ design ifFor all j, kj = k and 1 < k < v, andAny subset of t points is contained in exactly λ $ \lambda $ blocks.
Design Planning
Published in Luciano Lavagno, Igor L. Markov, Grant Martin, Louis K. Scheffer, Electronic Design Automation for IC System Design, Verification, and Testing, 2017
A wireplan is an incidence structure of modules and global wires. A global wire is one that can be sped up by buffer insertion. The latter implies that its (minimum) length and layer are known. For the modules, a trade-off between speed and size should be available. If timing constraints are given for the inputs and outputs, time budgets can be assigned to the modules so that the total size is minimal. The modules can then be designed using the concept of constant delay so that they do not exceed their budget.
Design Planning
Published in Louis Scheffer, Luciano Lavagno, Grant Martin, EDA for IC System Design, Verification, and Testing, 2018
A wireplan is an incidence structure of modules and global wires. A global wire is one that can be sped up by buffer insertion. The latter implies that its (minimum) length and layer are known. For the modules, a trade-off between speed and size should be available. If timing constraints are given for the inputs and outputs, time budgets can be assigned to the modules so that the total size is minimal. The modules can then be designed using the concept of constant delay so that they do not exceed their budget.
500 Hz ultraviolet dye laser with pulse energy 1.7 mJ and potential for PLIF imaging
Published in Journal of Modern Optics, 2020
Zhigang Zhou, Deying Chen, Rongwei Fan, Xudong Li, Zhaodong Chen, Tong Luo, Zhiwei Dong, Yugang Jiang
The tunable dye laser system is based on a MOPA structure as shown in Figure 2. The pump laser is split into two beams by a beam splitter to pump the resonator and amplifier after beam shaping. A grazing incidence structure with an intra-cavity beam expand is applied in the resonator to ensure the linewidth of the dye laser. The output laser of the master oscillator is amplified after the dye laser passes through the amplifier dye cell. In order to get ultraviolet laser in the UV band, a SHG crystal is installed on an electronic turntable, and a Pellin-Broca prism is used to separate the frequency-doubled ultraviolet dye laser from the fundamental dye laser. The output of the Nd:YAG laser and the dye laser are measured by a power meter (PM150/PS19, Coherent Inc.). The pulse width of the lasers is measured by a photo-detector (DET10A, Thorlabs Inc.).
Wave transformation due to barrier-rock porous structure placed on step-bottom
Published in Ships and Offshore Structures, 2020
In the case of barrier-rock porous structure of semi-infinite thickness, the porous structure is assumed to occupy the whole leeward region from the seaward point of construction. The wave reflection due to semi-infinite barrier-rock porous structure is examined for the variable angle of incidence, structure/rigid step-height and skin depth.