direction of the camera, the local shape recovered assuming the extremum is a minimum is the reflection of the A global shape from shading algorithm which develops a technique to merge local shape from shading results obtained shape recovered assuming the extremum is a maximum, around singular points into the complete shape using the mounand therefore the same saddle point will be found. This t...

The quantum mechanical description of isomerization is based on bound eigenstates of the molecular potential energy surface. For the near-minimum regions there is a textbook-based relationship between the potential and eigenenergies. Here we show how the saddle point region that connects the two minima is encoded in the eigenstates of the model quartic potential and in the energy levels of the ...

Zombie fires in peatlands disappear from the surface, smoulder underground during winter, and ‘come back to life’ spring. They can release hundreds of megatonnes carbon into atmosphere per year are believed be caused by surface wildfires. Here, we propose rate-induced tipping (R-tipping) a subsurface hot metastable state bioactive peat soils as main cause fires. Our hypothesis is based on conce...

An efficient physical optics (PO) calculation method is proposed for the electromagnetic (EM) scattering of electrically large targets coated with magnetized plasma characterized by asymmetric tensor dielectric parameters. The outer surface arbitrarily shaped target discretized into triangular elements. According to principle tangent plane approximation and using wave spectrum expansion method,...

Abstract The unit compacting pressure in the fine-grained material consolidation process roller press can reach >100 MPa and is a parameter that results, among other things, from properties of consolidated compaction geometry. Achieving right during briquetting one factors guarantee proper quality briquettes. distribution temperature on surface briquettes correlates with locally exerted pres...

An axisymmetric jet issued from a sharp edged circular convergent nozzle has been studied experimentally in the near field at Reynolds number 5.3x104  to search the saddle shape behavior of mean velocity and the role of mean static pressure in the jet flow. Due to the vena contracta effect the centerline mean velocity of the jet increases about 4.2% of its exit value and corresponding decrease ...

Results from analyzing the curvature of a surface can be used to improve the implementation, e ciency, and e ectiveness of manufacturing and visualization of sculptured surfaces. In this paper, we develop a robust method using hybrid symbolic and numeric operators to create trimmed surfaces each of which is solely convex, concave, or saddle and partitions the original surface. The same method i...