Television Camera Tubes and Its Application in Space Observation

construction and validation of translation metacognitive strategy questionnaire and its application to translation quality

like any other learning activity, translation is a problem solving activity which involves executing parallel cognitive processes. the ability to think about these higher processes, plan, organize, monitor and evaluate the most influential executive cognitive processes is what flavell (1975) called “metacognition” which encompasses raising awareness of mental processes as well as using effectiv...

extraction and characterization of allium irancum plant extract and its application in the green synthesis of silver nano particles and oxidation of thiocarbony1 compounds

سنتز سبز نانوذرات فلزی (nps) درسالهای اخیر توجه بسیارزیادی را به خود جلب کرده است. زیرا این پروتوکل کم هزینه وسازگار با محیط زیست از روش های استاندارد سنتز. در این پایان نامه ما گزارش میکنیم یک روش ساده و سازگار با محیط زیست برای سنتز نانوذرات نقره با استفاده از محلول آبی عصاره گیاه allium iranicum به عنوان یک عامل کاهش دهنده ی طبیعی. نانو ذرات نقره مشخص شد با استفاده از تکنیک های uv-visible، x...

A new camera projection model and its application in reprojection

In this paper we present a new camera projection model, which is intermediate between the a ne camera model and the pin hole projection model. It is modeled as a perspective projection of 3D points into an arbitrary plane, followed by an a ne transform of these projected points. We observe that the reprojection of a point into a novel image can be achieved uniquely provided that we have located...

Television and its Viewers

Thermal-imaging camera tubes with pyroelectric targets

Pyroelectric targets for thermal television can have broad spectral bandwidth, fast response to chopped signals and can operate uncooled. Analysis shows that targets of triglycine sulphate (TGS) are capable of good spatial resolution and high responsivity in practical thicknesses. The noise sources and constraints for electron beam readout in both cathode-potential and anode-potential stabilize...