查询词典 hydrogen

We get the optimum process scheme which is suitable for the unit, through analysising and comparising different absorption schemes in the incipience of running of PSA. As to different operation conditions during pressure swing absorption actual operating, we propose to refer absorption cycle time, hydrogen yield and recovery rate as target of process characteristic, study and find out the interrelation between process parameters which influences each other and controls guideline; Through optimizing process conditions, we find out the best operation clicking in actual production, then confirm the best range of absorption cycle time, which make hydrogen yield of plant, hydrogen products purity and hydrogen recovery rate come up to the production requirement at the same time.

通过装置运行初期对不同吸附方案的分析、比较，选出适合本套装置的最优方案，针对变压吸附实际运行过程中的不同生产条件，提出了吸附时间、氢气产量和氢气回收率作为工艺条件研究的主要对象，找出相互影响的工艺参数和控制指标的相互关系；通过对工艺条件的优化，找出实际生产中最佳操作点，确定吸附时间的最佳范围，使装置氢气产量、氢产品纯度和氢气回收率同时满足生产要求，并对影响氢气回收率的其他因素进行了阐述，对优化操作提出建议。

The results show that:First, concentration of hydrogen peroxide have the most obvious influence to oil yield and carbon black yield,with the increase of concentration of hydrogen peroxide the oil yield first increase then decrease,when concentration of hydrogen peroxide is 8.19% or so,the oil yield reach to the biggest value, and with the increase of concentration of hydrogen peroxide carbon black yield decrese;Then,reaction time have more obvious influence to oil yield and carbon black yield,oil yield increase but carbon black yield decrease with the increase of reaction time;Thirdly,reaction tempreture have some influence to oil yield and carbon black yield,samely,oil yield increase but carbon black yield decrease with the increase of reaction tempreture;Finally,reaction pressure does almost no influence on oil yield and carbon black yield.

研究结果表明：过氧化氢质量浓度对产油率和炭黑产率的影响最为显著，产油率随过氧化氢质量浓度的提高先提高后降低，在过氧化氢质量浓度为8.19%左右时达到最大值，炭黑产率随过氧化氢质量浓度的提高而降低；反应时间对产油率和炭黑产率的影响也比较显著，产油率随反应时间的增加而提高，炭黑产率随反应时间的增加而降低；反应温度对产油率和炭黑产率也有一定的影响，产油率随反应温度的提高而相应地提高，炭黑产率随反应温度的提高而降低；在本文实验范围内，反应压力对产油率和炭黑产率基本上没有影响。

This paper introduced a few of methods of hydrogen storage,including compressed hydrogen, liquidized hydrogen,metal hydrides,carbon nanotubes,organic liquid hydrides storage,and commented their recent developments,and pointed out direction of hydrogen energy storage progress.

介绍了高压压缩储氢、深冷液化储氢、金属氢化物储氢、碳纳米管吸附储氢及有机液体氢化物储氢等几种储氢技术的发展现状，并指出储氢技术未来的发展方向。

The P-C-T curves for Ti_(0.17)Zr_(0.08)V_(0.35)- Cr_(0.1)Ni_(0.3) and Ti_(0.17)Zr_(0.08)V_(0.35)Cr_(0.1)Ni_(0.3)Mm_(0.01) alloys have been depicted by electrochemical methods. It is shown that as temperature rises, the hydrogen equilibrium pressure of the alloys goes up, but the hydrogen desorbing performance deteriorates. After addition of Mm, the hydrogen equilibrium pressure of the alloy comes down, and the hydrogen desorbing performance meliorates.

同时本文还通过电化学方法绘制了Ti_(0.17)Zr_(0.08)V_(0.35)Cr_(0.1)Ni_(0.3)和Ti_(0.17)Zr_(0.08)V_(0.35)Cr_(0.1)Ni_(0.3)Mm_(0.01)合金的P-C-T曲线，发现，温度上升时，Ti_(0.17)Zr_(0.08)V_(0.35)Cr_(0.1)Ni_(0.3)合金的平衡氢压上升，随温度上升，合金的放氢特性变差；添加Mm后，合金的平衡氢压降低，曲线的整体斜率变小，放氢平台宽度增大，说明合金的放氢特性得到改善。

In the third chapter of this dissertation, based on the physical and chemical properties of hydrogen and the combustion characteristics of hydrogen, the quasi-dimension combustion calculation model of hydrogen-fueled engine is set up through analyzing the characteristics of turbulence flame and chemical reaction kinetic of hydrogen-air mixture.

但是，对氢燃料发动机燃烧模型的研究尚处于空白。

It's between two isotopes of hydrogen, two kinds of hydrogen, deuterium, which is heavy hydrogen, which you can get from seawater, and tritium which is super-heavy hydrogen.

这两种氢，其一为氘，它是重氢，可由海水获得；而氚是超重的氢。

Vast sea in a beautiful ball to over the ascension of hydrogen, vapor ...... for the dull sky adds a touch of brilliant color, eye along the slide at the end of the ball of hydrogen, you will find that the ball was a hand-held hydrogen slim girls.

茫茫人海中，一只漂亮的氢气球向上空升腾、升腾……为乏味的天空添加了一抹绚丽的色彩，眼光顺着氢气球滑到尽头，你便会发现手持氢气球的是一位亭亭玉立的少女。

This paper has intruduced the design principle, functio n and performance index of the QJY-A type hydrogen humidity monitor and the appl ication for on-line measuring hydrogen absolute humidity of the hydrogen -coo led generator set in the generation station.

介绍了QJY -A型氢气湿度监控仪的设计原理、仪器功能、性能指标及在发电厂氢冷发电机组氢气绝对湿度在线测量中的应用。

The degree of hydrogen bonded amidogen of the polyurea is high and the hydrogen-bonded urea carbonyl is 57.2%, including 63.1% ordered hydrogen bonding.

结构形态研究表明，PAE-F聚脲呈现非晶形态；氨基氢键化程度高，脲羰基总氨键化程度为57.2%，其中完善氢键化程度为63.1%。

Results: Using of handy infrared gas spectrometer, the ammonia, sulphur dioxide, acetone, butanone, ethyl acetate, chloroform, benzene, toluene, methyl alcohol, ethyl alcohol, isopropanol, and other harmful gases can be carried out quickly Online Testing. The arsine, hydrogen chloride, hydrogen cyanide, hydrogen sulfide can not be detected online.

结果：可利用便携式红外气体分析仪对氨、二氧化硫、丙酮、丁酮、乙酸乙酯、氯仿、苯、甲苯、甲醇、乙醇、异丙醇等有害气体可进行快速的在线检测，不能对砷化氢、氯化氢、氰化氢、硫化氢进行快速在线检测。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48