车上面容

一般都是一副倦容。蜷缩在一定没有多宽敞的驾驶舱,注意力必须始终高度集中,手脚并用程度只有鼓手可以超越,快时是一种累,慢慢爬行时又是、更是一种累。公车乘客,也往往不轻松,那么不舒适的BUS,其他"国际化大都市"可不多。路口遇到红灯,怎不可以出出神?目光涣散,当是情理中事。     

The impact of job assignment rules for straddle carriers on the throughput of container terminals

Straddle carriers represent a critical resource in the handling of containers within a container terminal. It is essential that they are deployed in an as efficient manner as possible. The research presented in this paper is motivated by the need to critically evaluate job assignment rules for straddle carriers that operate in a multiple straddle environment. This is achieved by developing a discrete event simulation model using industrial simulation software to model a container terminal located in Melbourne, Australia. The model accounts for variables such as the number of straddle carriers needed, the speed of straddle carriers, the arrival rate of trucks, and the job assignment rule. A principal finding of the study is that increasing the number of straddles in the present set‐up from 6 to 7 has a negligible effect on daily throughput. However, an increase in the number of straddles to 7 is expected to have a profound effect on reducing the average waiting time of trucks within the terminal from over 16 minutes to under 9 minutes, a decrease of 46.5%. However, a further increase in the number of straddles results in no further increase in daily throughput. It was observed that the throughput of the terminal is very sensitive to the speeds at which straddles travel. The management of the terminal has proposed a new heuristic job assignment rule for straddles, because the present rule does not assign the jobs to straddles closest to the truck requesting to load or unload a container. As a result a new heuristic job assignment rule was tested. The simulation results revealed that both the old and new rules performed equally well using performance indicators such as average container flow time, daily throughput, average waiting time of jobs, number of jobs in the queue, and straddle utilisation. Therefore, the new rule will not improve these performance measures if implemented     

尊重

初习垂钓,先要学习尊重生命,懂得放手放生。他虽小,父亲只要不断向他重复,他会记得很牢。Lexus GS460,不太可能是任何人初学驾驶的教具。其实它被取消此一资格,并不因为自己有何罪过,只是售价有些昂贵,只是动力太过富裕。     

爱要快

我打开Google Earth,以伪上帝视角,略带不该有的情感色彩,凝望这地方的一片厂区——Lansing Grand River Assembly——密歇根兰辛大河装配厂, GM在这里雕塑出一台又一台凯迪拉克。我看到巨大的厂区停车场上,停满凯迪拉克。我不可能分辨,里面有多少GTS-V,而我很想有答案。     

时代妖娆

每时代皆有经典。PASSAT新领驭,经典生命力再出发,自如带我们穿越光阴。1912年的Route Ghisi,法租界风情至今留存,回顾回眸,原也是一份难忘情怀。今天最辉煌,因为它是今天。假如今天可以收藏,只要经典,就不要犹豫。正如这部座驾所述说的:这座城市,从不缺少创造力。而未来,是旷世之美。德国,PASSAT的故乡。世博会德国馆,2010年沪上最酷去处。挂入最高挡,驶向未来,它到来时,请勿缺席。