Five-Year Follow-up of 399 Phakic Artisan–Verisyse Implantation for Myopia, Hyperopia, and/or Astigmatism
- 作者：Jose Luis Gü ; ell ; Merce Morral ; Oscar Gris ; Javier Gaytan ; Maite Sisquella ; Felicidad Manero
- 关键词：Protein kinase C ; Chronic hypoxia ; Protein kinase C inhibitors
- 刊名：Ophthalmology
- 出版年：2008
- 期刊代码：211_01616420
- 类别：med
- 出版时间：June 2008
- 卷：115
- 期：6
- 页码：1002-1012
- 文件大小：1160 K
摘要
This paper introduces a Diesel/methanol compound combustion system (DMCC) and its application to a naturally aspirated Diesel engine with and without an oxidation catalytic converter. In the DMCC system, there are two combustion modes taking place in the Diesel engine, one is diffusion combustion with Diesel fuel and the other is premixed air/methanol mixture ignited by the Diesel fuel. Experiments were conducted on a four cylinder DI Diesel engine, which had been modified to operate in Diesel/methanol compound combustion. Experiments were conducted at idle and at five engine loads at two levels of engine speeds to compare engine emissions from operating on pure Diesel and on operating with DMCC, with and without the oxidation catalytic converter. The experimental results show that the Diesel engine operating with the DMCC method could simultaneously reduce the soot and NOx emissions but increase the HC and CO emissions compared with the original Diesel engine. However, using the DMCC method coupled with an oxidation catalyst, the CO, HC, NOx and soot emissions could all be reduced.