Example 3. How many ways are there to put m balls into n bins. Assume m ≤ n. 1. Balls are distinct and bins are distinct. Every ball has n choices. Hence n. Exercise 2. Why is the answer not m by looking at the opposite argument. 2. Balls are not distinct but bins are distinct. Take m identical balls and n− 1 identical sticks and permute them. Every permutation gives a different arrangement. So...

Motion Detection and Segmentation in Dynamic Video Backgrounds Vivek Arya Amity University Haryana __________________________________________________________________________________________ Abstract--Nowadays roads are getting overcrowded, especially in metro cities. Hence the main aim of proposed research is to build a traffic monitoring system which replace or reduce the human monitoring syst...

This paper presents a method that uses camera motion parameters to recognise 7 types of American Football plays. The approach is based on the motion information extracted from the video and it can identify short and long pass plays, short and long running plays, quaterback sacks, punt plays and kickoff plays. This method has the advantage that it is fast and it does not require player or ball t...

Recently, the use of renewable energies has increased to  environmental pollution, limitation of fossil energy resources and energy security  One of the means that enable us to use such energies is fuel cells (FC). However, there are many problems  in the commercialization of FC from an economically and operation perspective. One of the most important problems is heat management. New heat pipes...

Introduction: Pulmonary fungus ball is a rare complication in pre-existing pulmonary cavitary lesions, due to some chronic pulmonary diseases including tuberculosis, lung abscess and sarcoidosis. Fungus ball is mostly caused by aspergillus. In many patients, fungus ball is asymptomatic, but in a significant number of them it can develop cough and hemoptysis, which may be massive and fatal. The ...

The title of Ball and Mankiw’s paper asks: What Do Budget Deficits Do? One answer to that question is a restatement on the pure theory of debt-financed budget deficits. An alternative answer would develop the effects on the U.S. or world economies on the assumption that the U.S. federal government balances its budget by reducing spending, instead of raising tax rates, or running deficits equal ...

clarithromycin (cla), a broad-spectrum macrolide, is a poorly soluble drug with dissolution rate limited absorption. the aim of this investigation was to prepare cla nanoparticles from a ternary ground mixture in the presence of sodium lauryl sulfate (sls) and polyvinyl pyrrolidone (pvp) as co-grinding water-soluble compounds, in order to improve the drug dissolution rate. different weight rati...

the molybdenum dicilicide is an intermetallic compound with two allotropies tetragonal ?-mosi2 and hexagonal ?-mosi2.the ?-mosi2 phase is established to 1900 ?c and ?-mosi2 phase from 1900 to 2050 ?c. this material has considerable properties that provide different applications in different industries such as air-space industry and gas turbines. the molybdenum synthesis can be down in various w...

Physical activity is an important aspect of good health for everyone; it is even more important for psychiatric patients who usually live an unhealthy lifestyle. In recent years, there has been growing focus on the use of soccer as a vehicle to improve the health of subjects with severe mental illness. The aim of this study was to investigate the effects of soccer practice on the self-reported ...