Progress of electron source and crystal observation method

Single Crystal Diamond Needle as Point Electron Source

Diamond has been considered to be one of the most attractive materials for cold-cathode applications during past two decades. However, its real application is hampered by the necessity to provide appropriate amount and transport of electrons to emitter surface which is usually achieved by using nanometer size or highly defective crystallites having much lower physical characteristics than the i...

cellular behavior and scanning electron microscope evaluation of pro-root mta, root mta and modified mta on fibroblast l929

چکیده ندارد.

A Novel Blind Source Separation Method with Observation Vector Clustering

We propose a new method for separating sparse signals from their mixtures. Separation is achieved by clustering the normalized observation vectors and extracting each cluster as each separated signal. We show the practical result of speech separation with non-linear sensor arrangements in both a determined and an underdetermined scenarios. We also consider the musical noise problem and show the...

chemical recycling of polycarbonate waste using conventional heating and microwave assisted method

پلی کربنات یکی از پلاستیکهای مهمی است که به صورت گسترده در تولید لوحهای فشرده، قطعات رایانه، مواد ساختمانی و غیره مورد استفاده قرار می گیرد. این پلیمر بصورت عمده از تراکم مونومر بیس فنولa (bpa) و کربنیل کلرید یا دی متیل کربنات ها بدست می آید. در سالهای اخیر بازیافت شیمیایی پلی کربنات بیشتر مورد توجه بوده است. بازیافت شیمیایی پلی کربنات برای بدست آوردن مواد اولیه آن با روشهای متفاوتی مانند تجزی...

Experimental observation of the strong influence of crystal orientation on Electron Rutherford Backscattering Spectra