This paper presents a novel method, which can be used to extract blob-like object from a blob-like image. The method firstly uses an interest point detecting algorithm with automation scale selection to detect interest points and their scales. Secondly, centered at each interest point a local rectangle region can be constructed with two scales of the point in two different directions. Since such a region contains a single object, the set of these local regions can be regarded as an approximate segmentation for the original image. Further more, we can use a clustering method to extract a blob object from each local region. Experimental results show that our method can efficiently extract single object.
The high energetic particle generated from nuclear fusion will severely change material structures and properties of the reactor, where the surface of the steering gear would become fluffy. On this basis, the SRIM software is introduced in this paper, aiming to investigate the impact of different ions with different masses and energies on material structures in order to observe the damage on the material caused by the radiation. According to our simulation, a drop in 13% elastic property has been observed. The bombardment can produce a considerable amount of damage, which should be taken into consideration during the design. Thus, the tungsten shield can’t be used as weight supporting element. Besides, regarding the above discussion, a wider margin should be taken into consider when designing the fusion reactor. We hope to figure out some uncontrollable error and imperfection still existing in the simulation. These results offer a guideline for better observation of the damage on the material caused by the radiation.
Separators present the crucial functions of separating the positive and negative electrodes due to the free flow of lithium ions through the liquid electrolyte that fills in their open pore. Separators for liquid electrolyte Lithium-ion batteries can be classified into porous polymeric membranes, nonwoven mats, and cellulose separators. When a lithium-ion battery is being overcharged, it releases the heat and results in the inner-short. The polyethylene (PE) separators used here had shut down at around 135°C to cool the exothermal batteries. To enhance the meltdown temperature of the separator, a PE separator was coated with polymers synthesized from various ethylene glycol dimethacrylate monomers. At the same time, nonwoven mats have the potential to be low cost and thermally stable separators. Furthermore, the lithium-ion phosphate/lithium half cell using cellulose separator exhibited stable charge-discharge capability even at 120 °C. This paper presents an overview of the PE and PP membranes of lithium-ion battery separators, discusses how to solve their disadvantages, and reviews the cellulose-based materials developed for potential application in the lithium-ion battery.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.