The projection lens is the core component of DMD-based maskless lithography and its imaging quality directly affects transferal exposure pattern. Based on traditional system, we have designed diffractive optical element (DOE) aspheric surfaces to optimize refractive/diffractive hybrid system improve quality. We found that best effect obtained when DOE very close front group before diaphragm sys...

Background and Objectives: To compare the efficacy of three surgical methods in tonsillectomy patients; combination monopolar bipolar diathermy (diathermy), coblation dissection using Evac (coblation), Harmonic scalpel assisted (harmonic). Materials Methods: Ninety-seven patients underwent a single institute between January 2020 May 2021. Postoperative pain was evaluated visual analogue scale (...

background: culture media enrichment through the addition of protein hydrolysates is beneficial for achieving higher protein expression. methods: in this study, designing the optimum mixture of four soy and casein-derived hydrolysates was successfully performed by design of experiment and specific productivity increased in all predicted combinations. protein profile of recombinant cho (rcho) ce...

Geographical variation in coronary revascularisation rates Sir-I found the paper by Black et all on the geographical variation in coronary re-vascularisation rates extremely interesting. This is a vital area if the NHS is to try to achieve a more equitable service. I am impressed by the tremendous size of the study embarked upon to investigate these variations and the wealth of information avai...