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Aimed at the characteristics such as heavy traffic,serious surcharge,a lot of long scarps,long term of high temperature,raininess and heavy fog in summer of Beijing-Zhuhai expressway in Gongdong Province,this paper,which adopts uniform design method with 16 levels and 4 factors,studies the relativity between coarse aggregate content and ,optimizes the mix of SMA mixture.

针对京珠高速公路粤境内北段交通量大、超载严重、长陡坡路段多、夏季高温多雨多雾等特点,采用16水平4因素的均匀设计法,研究了各档粗集料用量与骨架间隙率之间的相关性,优化了SAM矿料级配,并对SMA高温稳定性及影响因素进行了分析,且重点研究了粗集料用量、沥青用量、纤维品种等对SMA高温稳定性的影响。

In the new process, middlelowtemperature waste heat is used as heat source and LNG cold energy is divided into the lowtemperature latent cold energy and the hightemperature sensible cold heat. Nitrogen Brayton cycle recovers lowtemperature latent LNG cold energy, while the ammoniawater Rankine cycle recovers the hightemperature sensible LNG cold heat, whereby the graded use of energy can be realized. The exergy efficiency of LNG cold energy utilization can be effectively improved.

流程中以中低温余热为热源,并将LNG冷量分为低温级的潜热冷量和高温级的显热冷量两级,氮气Brayton循环回收LNG低温级的潜热冷量,氨水混合物Rankine循环回收LNG高温级的显热冷量,实现了能量的梯级利用,有效提高了LNG冷能利用的火用效率。

In contrast, in 55℃ treatment for 5 and 10 minutes, it was increased to about 140% of the control, and was further increased to about 240% and 290%, resp. after following readaptation to room temperature in 60 minutes. Thus in the inactivation of the PSⅡ reaction centers, a slow, indirect process was induced by high temperature stress, in addition to a prompt, direct action.

而55℃5分钟和55℃10分钟高温胁迫后,在恢复期内其PSⅡ无活性中心的含量从常温的1.4倍左右的基础上分别上升至2.4和2.9倍,说明高温胁迫对PSⅡ中心除了起瞬时钝化作用外,还存在一个间接的较为缓慢的持续钝化作用。

This technology is now being applied commercially, notably by UK recycler Milled Carbon.

目前该领域的研究已经初现成果,比如增强塑料在一份报告中对高温分解法进行了阐述,即环氧树脂在低氧燃烧过程中被高温降解,现在这项技术已经被著名的英国碳纤维回收商---Milled Carbon所采纳。

The anode structure of CI-LIGBT is optimized by numerical simulation, and it is pointed out that segmented p〓 anode region surrounded by n〓 anode region is the key to improve the ability of current limiting, and the more deeper the n〓 anode junction relative to the p〓 anode junction, the more powerful the ability of current limiting is. The affection of the breakdown voltage BV〓 of the reverse biased p〓n〓 junction and the sample resistance upon the latching current, the latching voltage and the on-state voltage have been studied, and it is indicated that the tradeoff between the on-state voltage and the latching characteristics is the excellentest when BV〓 is 1. 1V so that its on-state voltage can be just only 0.6V higher than conventional LIGBT. It is also found that this device is especially suit to high temperature environment. Based on X. B. Chen's surface voltage sustaining structure using optimized variational lateral doping and Ludikhuize's multiple floating rings structure, high voltage LIGBT and is studied in this paper.

通过数值模拟,优化了CI-LIGBT的阳极区结构,指出采用被n〓阳极区包围的单元状p〓阳极区是提高该器件限流能力的关键,而n〓阳极区结深相对p〓阳极区结深越大,器件的限流能力越强;分析了反偏p〓n〓结击穿电压BV〓和取样电阻对器件闩锁电压、闩锁电流和导通压降的影响,得出BV〓在1.1V时器件导通压降和抗闩锁能力间的折衷关系最优,其导通压降仅比普通LIGBT高0.6V;分析了温度对LIGBT闩锁性能的影响,表明CI-LIGBT即使在450K的高温下也不会闩锁,尤其适用于高温工作环境。

Juseleeno Nobulega Da Roose transliteration is a Brazilian, was born in 1960, 47-year-old, the current job is the school teacher, and now with his wife and children who live in very poor four days of his was a very plain citizens.

但5 月初就如此高温,可想而知到2010年的夏天地球温暖化会越严重,非洲各国的气温十分有可能创下想像以外之高温

Received the asphalt mixture mechanics performance index with frequency through FSCH test, it point out that the complex shearing modulus: G*, G*/sind can appraise the high-temperature performance of different asphalt mixture well. But phase angle: d can't relatively produce quality of high-temperature performance of every asphalt mixture obviously.

通过FSCH试验得到不同频率下沥青混合料力学性能指标,指出复数剪切模量G*、G*/sinδ能较好地评价不同沥青混合料的高温性能,而相位角δ不能明显地比较出各沥青混合料高温性能的优劣。

Received the asphalt mixture mechanics performance index with frequency through FSCH test, it point out that the complex shearing modulus: G*, G*/sind can appraise the high-temperature performance of different asphalt mixture well. But phase angle: d cant relatively produce quality of high-temperature performance of every asphalt mixture obviously.

通过FSCH试验得到不同频率下沥青混合料力学性能指标,指出复数剪切模量G*、G*/sinδ能较好地评价不同沥青混合料的高温性能,而相位角δ不能明显地比较出各沥青混合料高温性能的优劣。

Effects of different silane coupling agents on high temperature resistance of epoxy modified silicon resin were studied.

研究了不同硅烷偶联剂对环氧改性有机硅树脂耐高温性能的影响,研究结果表明,使用KH560的环氧改性有机硅树脂耐高温性能较使用其它硅烷偶联剂的为好。

Silk-screen printing development has a long history, and there is a lot of research for printing ink which is used for silk-screen printing of different function.

丝网印刷发展历史悠久,对于丝网印刷采用的各种功能的油墨的研制也很多,这些油墨一般都是在常温条件下使用,而耐高温的丝网油墨则是在高温下使用,现在主要是指玻璃印刷和陶瓷印刷时用的油墨。

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