We study a model loosely inspired by the giant carbon molecule C, namely a negligibly thin spherical shell of radius R, carrying a continuous fluid with ma... G Barton - 《Journal of Physics A Mathematical General》 被引量: 70发表: 2004年 The complex Sine-Gordon equation as a symmetry ...
CSR theory2), these drivers are often confounded in real ecosystems. Agricultural systems in particular, tend to be found on a continuum between low intensity (low disturbance, no nutrient input) and high intensity (high disturbance, such as mowing, and high nutrient input). We ...
The tube radius of CNT is given byrc = 0 2 鈭 (2 + + 2)Where 0 = 30 is the lattice constant of graphite sheet and 0= 1.42 0 is the distance between the nearest-neighboring carbon atoms. A SWCNTS is metallic if m-n= 3q, where q=0, 1, 2...thus, armchair nanotubes are ...
This evolution marks a shift from merely responsive materials to autonomous robotics, effectively narrowing the gap between synthetic materials and natural living systems and opening up broad application prospects. This review presents a multiscale analysis of LCE actuators, covering their molecular to ...
All actively star forming galaxies are forming clusters, and the local initial conditions likely determine whether bound massive clusters or unbound associations are formed. Here, we focus on observed scaling relations between cluster populations and the properties of the host galaxy. In particular, we...
Let us denote those three objectives by: f1, f2 and f3 respectively. Obviously, some tradeoff between them is needed, but in case of a fully automated MASS it is not possible to consult an external DM every time another vessel is encountered. RPs cannot be used because the objective values...
Comparisons of the integrated liquid water content from a ground-based microwave radiometer and PMS observations with the Cloud Optical Thickness (COT) of EOS/MODIS cloud products are carried out, respectively. Two equations are obtained for describing the relationship between cloud liquid water content...
andθvare the bulk Lorentz factor, three-velocity normalized by the speed of light, Thomson cross section, and angle between the line-of-sight (LOS) of the observer and velocity direction, respectively. Here we choose a value ofτ = 100 for the injection radius. As shown later, our...
Here it represents the constraint that each Course entity must be related to (has assigned to it) one, and only one, Instructor entity. The crow's foot symbol with a circle that appears at both ends of the relation between the Course and Student entities indicates a zero-to-many relation...
We have a total commercial capacity of more than 200,000 liters with flexible scales between 400 and 12,000 liters. For products derived from microbial fermentation technology more than 12,000 liters of commercial capacity with flexible scales from 200 liters to 4,500 liters are installed at...