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In this paper for the two-dimensional diffusion equation, the net region is divided into bands, a special kind of block.
      
Some of them including the existence problem, minimax problem, net representation, bend minimization, area minimization, placement problem, routing problem, etc.
      
A series of Petri net-based definitions were formulated for describing four types of structural errors in a rule-based system (RBS), including inconsistency, incompleteness, redundancy and circularity.
      
A marked ω-Petri net model of acyclic RBS was constructed.
      
The results showed that the diurnal course of net photosynthetic rate displayed a two-peak pattern, that of stomatal conductance displayed a hollow pattern, and that of transpiration rate displayed a signal-peak pattern.
      
This was done by determining the duration of each life stage of the mites, the intrinsic rate of population increase (rm), mean generation time (T) and net reproductive rate (R0) of the spider mites on each of the host plant species.
      
In group T1, the seedling of baldcypres had lower apparent light use efficiency, lower apparent CO2 use efficiency and a lower net photosynthetic rate, with the net photosynthetic rate 24.9% lower than that of group CK.
      
However, T2 and T3 did not differ from CK in apparent light use efficiency, apparent CO2 use efficiency and net photosynthetic rate.
      
Net photosynthetic rate was not significantly related to the contents of chlorophyll and carotenoid, the ratio of chlorophyll to carotenoid, relative air humidity and intercellular CO2 concentration.
      
Moreover, nitrogen supply levels affected contents of total nitrogen and soluble proteins in leaves, and net photosynthetic rates.
      
And net photosynthetic rates were affected little by phosphate supply.
      
Low levels of NO3- in these forest soils generally correspond to low net rates of nitrification.
      
In case it is planted in drought conditions, this tree species should be watered appropriately in order to keep its normal net photosynthetic rate.
      
The decomposition study showed that A450 exhibited significantly higher decomposition rate, mineralization rates of N, P and K as well as much shorter N and P net immobilization periods.
      
We have studied the photoluminescence (PL) of the hole-net structure of silicon and the porous structure of SiGe where the PL intensity at 706 nm and 725 nm wavelength increases obviously.
      
In this study, we developed an assessment method of indicator system (AMIS) based on analytical hierarchy process (AHP), fuzzy mathematics, and the theory of net-hierarchy.
      
Characteristics of net ecosystem carbon dioxide exchange (NEE) from August to October of Alpine meadow on the Tibetan Plateau, C
      
As a proxy of the vegetation growing process, NDVI difference represents net primary productivity of vegetation at a certain time interval under an environment controlled by certain climatic conditions and other factors.
      
The popular FG-NET and the large scale Yamaha aging database are used for the age estimation experiments, and our algorithm outperforms those state-of-the-art algorithms ever reported by other interrelated literatures significantly.
      
In this paper, we present the design and implementation of our expertise oriented search system, Arnetminer (http://www.arnetminer.net).
      
 

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