| 1. | It is a new heat transfer enhancement method to apply helmholtz resonance chamber to convective heat transfer in a pipe 将helmholtz共振腔应用于换热器来增强换热是一种新的强化换热方法。 |
| 2. | The regulations of the transition metal vanadium oxide synthesis were found . those results are helpful to synthesize the vanadates effectively 论文工作表明水热方法是一条合成具有特殊形貌钒酸盐的有效途径。 |
| 3. | Based on the specialization of infrared optical system loading in missile , it proved that optical passive athermalisation technique is a wise choice 根据弹载红外光学系统工作的特殊性,采用光学被动消热方法进行实例设计,得出了在? 30 ~ 50范围内实现环境温度补偿的系统设计参数和评价结果。 |
| 4. | The formation mechanism of cds nanowires was also discussed . only short cds nanorods with low aspect ratio were obtained in the case of only using ethylenediamine as the reaction medium 首次以聚乙烯醇( pva )为基体采用溶剂热方法成功制备了cds纳米线,表征了其结构性能,并讨论了其制备机理。 |
| 5. | The effect on optical system caused by environmental temperature variation and several typical athermalisation techniques as well as theirs ' advantages and disadvantages were presented in this paper 摘要环境温度的变化对红外光学系统的影响很大,针对此类问题,分析了国内外典型的消热方法,比较其优缺点。 |
| 6. | New york ( reuters health ) - by relying more on steaming , boiling and stewing to cook foods and using acidic marinades on meat cooked with dry heat , people may be able to stay healthier , a new york city researcher suggests 纽约市一位研究者建议,更多地采用蒸、煮和炖的方法来烹饪食物,以及用酸性物质浸泡一下准备用干热方法烹饪的肉类,对人体可能更健康。 |
| 7. | The results revealed that cds nanorods were formed by using ethylenediamine and the mixture of ethylenediamine and water as solvents . the cds nanorods were about 12 - 20nm wide and 50 - 300nm long when absolute ethylenediamine was used as solvent 利用溶剂热方法,以乙二胺与水的混合物为反应溶剂制备了cds纳米棒和纳米晶,并对其结构性能进行了表征,对反应机理进行了研究。 |
| 8. | Take the solar energy as the auxiliary power , using solar energy light hot principle and inexhaustible solar energy continuously heating way , uses the advanced collection hot method and the many kinds of chemical energy absorption way memory energy , again through physics switching device , according to needs to achieve the refrigeration system hot goal 以太阳能为辅助动力,利用太阳能的光热原理和取之不尽的太阳能连续不断的供热方式,采用先进的集热方法及多种化学能吸收方式存储能量,再通过物理转换装置,根据需要达到制冷制热的目的。 |
| 9. | In this thesis , a series of chalcogenides were synthesized by using complex as precursors via hydrothemal route . by varying reaction condition and choosing the suitable precursors , the nanocrystal with different morphology were obtained . the main point can be summarized as follows : 1 以金属配合物为前驱体,通过水热溶剂热方法制备了一系列硫族化合物;通过对前驱体的选择和反应条件的调节,探索了前驱体结构及反应条件对最终形成的纳米材料结构和形貌的影响,对论文内容总结如下: 1 |
| 10. | The transition metal vanadates with special morphology were synthesized by the hydrothermal technique at low temperature , and characterized by sem , xrd , ir and eds technique . the regulations and affecting factors for the synthesis of the transition metal vanadates with special morphology were obtained and the route of low temperature synthesis was developed . most attentions were payed to the synthesis of transition metal vanadates 本论文采用水热方法进行具有特殊形貌的钒酸盐晶体的合成研究工作,初步探索具有特殊形貌过渡金属的钒酸盐晶体的合成规律,找出合成过程中的影响因素,开发过渡金属钒酸盐的低温合成路线,合成具有特殊形貌的钒酸盐的单晶,有利于发现新材料。 |