this research uses computational modeling to explore another method to increase diesel engine performance while maintaining low pollutant emission levels. previous studies have shown that injection-rate profiles and injector configurations play important roles on the performance and emissions of particulate and nox in di diesel engines. since the most important engine design parameters, includi...

This research uses computational modeling to explore another method to increase diesel engine performance while maintaining low pollutant emission levels. Previous studies have shown that injection-rate profiles and injector configurations play important roles on the performance and emissions of particulate and NOx in DI diesel engines. Since the most important engine design parameters, includi...

OBJECTIVE Various ventral and incisional hernia repair techniques exist and have largely replaced the open ones. The purpose of this study was to document the 2-port technique and demonstrate that it is feasible, efficient, and safe. To our knowledge, this is the largest report on this topic to date in the English-language literature. METHODS Forty patients with ventral hernias (VH) or incisi...

We report a development and fabrication of an folded waveguide (FWG) antenna to produce and heat the plasma via ion Bernstein wave on the Large Helical Device (LHD) in the ion cyclotron range of frequency (ICRF). This antenna is 428 mm in height, 1050 mm in width and 3950 mm in length with 23 vanes and 24 folds. It will be installed to the horizontal vacuum port with an inclination angle of 38....

An overview on four-year operation of the negative-ion-based NBI (N–NBI) system for the Large Helical Device (LHD) is presented, and prospects of negative-ion technology for applying it to future helical fusion reactors are discussed from theses experiences. The N–NBI system was designed and constructed based on the results of R&D at NIFS. Using three beam lines, the total port-through injectio...

Neurofilaments purified from invertebrate giant axons have been analyzed with the electron microscope. The neurofilaments have a helical substructure which is most easily observed when the neurofilaments are partially denatured with 0.5 M KCl or 2 M urea. When the ropelike structure comprising the neurofilaments untwists, two strands 4--5.5nm in diameter can be resolved. Upon further denaturati...