均热
- 与 均热 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Defines a d imensionless initial height of a heat source to reflect the effect of a heat source on heat distribution regularity of an air conditioned room with upward displacement, using variance analysis method obtains the dimensionless relationship between the heat distribution resularlty and other factors as Arn, Zr,ZJ and DIHHS, and reveals their importance in desoendins ceder as Arn, Zr, DIHHS and Zj.
提出了用热射流起始无因次高度来反映热源起始高度对下送风空调房间热分布系数α的影响,利用回归原理得出了α随阿基米德数Ar_n、热射流自由度Zr、机械射流自由度Zj及热射流起始无固次高度变化的准则关系式。用连结向量图法和对实验数据回归公式的F检验,对影响室内热分布规律的各个因素进行了分析,发现这些因素均为主要影响因素,其影响的相对主次依次为Ar_n,Zr,和Zj,回归结果具有很强的显著性。
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The result indicated that, DTA and DSC apparatus constants of CDR-1 dynamic differential thermal analyzer increase along with temperature increment, but influence of temperature on DTA apparatus constant is more remarkable.
采用6种标准物质测定CDR-1型差动热分析仪的差热分析法和差示扫描量热法仪器常数,结果表明:CDR-1型差动热分析仪的差热分析法和差示扫描量热法仪器常数均随温度的升高而增大,而差热分析法仪器常数受温度的影响更为显著。
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The results show that the compound conductive fiber has typical structure of sheath-core consists of black greened polyaniline electric conductive deposition as the skin and the white polypropylene matrix fiber as the core, which makes the compound fiber preferable physical mechanical property. The intensity and the elongation ratio of the electric conductive fiber are decreased but the thermal stability is enhanced after modified. The compound fiber has the good acid resistance but poor base resistance. The thermal stability of the compound fiber prepared by 4-methyl-benzene sulfonic acid is better than that prepared by hydrochloride acid. Moreover, the compound fiber can be re-doped by other organic or inorganic acid after freed from the adsorbed acid. Furthermore, the electric conductivity of the compound fiber decreases with the temperature increasing but hardly changed with the humidity. The adsorptive ability and therefore the content of the polyaniline, the constant of electric conduction, and the durability of the compound fiber can be enhanced by thinning the diameter, section heteromorphosis, section heteromorphosis and plasma treatment of the surface or blending with COPET of the fiber.
结果表明:复合纤维是聚丙烯与聚苯胺的共混体系,具有典型的皮芯型结构,皮层为墨绿色的聚苯胺沉积层,形成连续的导电通道,芯层为白色的聚丙烯基质纤维,提供物理机械性能;导电改性后纤维的强度、强力和伸长率均有下降,但热稳定性得到提高;复合纤维的耐酸性比耐碱性好,以对甲苯磺酸做掺杂酸比盐酸掺杂聚苯胺热稳定性好,脱掺杂后的复合纤维,可用其它无机酸或有机酸进行再掺杂;复合导电纤维的电导率随温度升高降低幅度较大,但几乎不受湿度影响;基质纤维细旦化、截面异形化、表面等离子体处理或共混COPET等改性处理均能提高纤维的吸附性,进而提高复合纤维表面聚苯胺含量、电导率和耐久性。
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The results show that the atmosphere has a big influence on the thermal stability of C_(60).C_(60) begins to decompose at 423.5℃in the air,the deomposed peak temperature is 668.5℃,but very stable in the helium atmosphere,only sublimate,the crystal shape of C_(60) has a certain influence to its thermal stability.The synthesized nine kinds of nitro-fullerene derivatives all have good thermal stability and their decomposed peak temperatures all exceed 350℃.The thermal explosion temperature for 5 seconds delay of product 4 is 253℃.The category,number and position of nitryl group in nitro-fullerene derivatives all have influence on their thermal stability.
利用差热分析仪和DSC-TG综合热分析仪对C_(60)及其硝基衍生物的热稳定性进行了研究,结果表明,环境气氛对C_(60)热稳定性影响很大,C_(60)在空气中423.5℃开始分解,放热峰值温度为668.5℃,在氦气中很稳定,仅表现为升华,C_(60)的晶型对其热稳定性也有一定的影响;合成得到的九种硝基富勒烯衍生物都具有较好的热稳定性,分解峰值温度均高于350℃;产物4的5秒爆发点测试结果为253℃。
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Results The two methods had the positive effects on BPH patients, the IPSS and urinefollow-metry rate were improved obviously in the two groups, and the curative effects of tamsolusin was much better than ERTH in the improvement of IPSS, but the urinefollow rate improvement in the two grpups was not significantly different.
结果两组病人对热疗和α1A受体阻滞药物的治疗均有肯定的疗效,与治疗前对照症状及尿流率显著改善;盐酸坦索罗辛的IPSS改善优于热疗组,尿流率的改善程度两组相似,差别无统计学意义;两组病人并发症均较轻,多为一过性,并未影响治疗。
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The experimental results are as follows:(1) Without EAF the fouling resistance increase along with addition of time and change of the heat transfer coefficient is just contrary to the result. However, with EAF fouling resistance still enhances at the beginning of experiment and later, it gradually minishes after experiment has started for some time. Of course, the change of heat transfer coefficient still is contrary to the outcome. But when experiment lasts longer time, fouling resistance and heat transfer coefficient change in the same trend as the fore results at the beginning of the experiment. However, They all go to the tranquilization until the last.
实验结果表明:(1)没有经过电磁处理时,污垢热阻随着时间的增加而增加,换热系数随着时间的增加而减小;一旦经过电磁场的处理,污垢热阻开始时仍呈上升趋势,经过一段时间以后,便逐渐下降,换热系数的变化与此正好相反,即在实验开始时呈下降趋势,后来逐渐上升;当实验时间延长时,发现污垢热阻及换热系数在实验开始时的变化趋势与前面的实验结果基本相同,但到后来,二者的数值则分别均趋于稳定。
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Based on a computing model of floor heating residences, indoor thermal environment and heat distribution under the effect of heat charge/discharge, operation control and solar radiation has been concluded. Concept and formula of equivalent heat supply has been put forward which indicate that actual heat supply will be equal to the sum of design heat supply and equivalent heat supply. Recommend coefficient has been given taken Dalian as an example. Computed according to the new method, design heat supply can be reduced to 37% in cloudy day and 43.3% in sunny day, energy saving effect is very obvious. In Tromb wall solar house, effect of concrete wall on indoor temperature swing and attenuation of temperature wave is very obvious. While the outdoor air-temperature swing exceeds 10℃, indoor air-temperature swing belows 3℃. In the experiment, maximal difference in temperature between inner surface and outer surface of the 300mm wall exceeded 10℃. Heat storage and collector efficiency varies adversely according to solar radiation. Factors such as thickness, material, absorptance of the wall and permeation of the glass cover all have big influence on heat storage and collector efficiency. There exsisted an optimal thickness of the wall, which can make the best of heat storage and collector efficiency. Most of the heat stored in conventional Trombe wall during the daytime has been lost to the outside at night without heat preservation. Heat preservation on the outside surface of the wall has effectively improved heat release performance of the wall at night, heat supply to the room has increased too.
通过建立的地板采暖系统动态热性能分析模型,得出了在蓄放热特性、运行方式和太阳辐射等因素耦合作用下的室内热环境及热量分配比例,提出了等效供热量的概念及计算公式,指出实际所需供热量应等于设计供热量加上等效供热量,并以大连为例,给出了等效供热量的修正系数,以新方法计算,阴天可减少设计供热量37%,晴天最大可以减少设计供热量43.3%,节能效果显著;集热蓄热墙式太阳房中,混凝土蓄热墙的室温均一化效果和对温度波的削减作用非常明显,当室外温度波动最大幅度超过10℃时,室温波幅不超过3℃,实验中300mm厚墙体内外表面温差超过10℃;墙体蓄热效率与集热效率随太阳辐射照度的变化呈相反的变化趋势;墙体厚度、材料、表面吸收率以及盖板透过率等因素对集热和蓄热效率均有较大的影响,存在一个最佳的墙体厚度值,使得墙体集热和蓄热综合性能最优;传统的蓄热墙夜间没有外保温,辐射散热损失很大,研究表明墙体外保温方式明显改善了蓄热墙夜间的散热性能,增加了向室内的供热量。
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By the study of the relationship between vegetation and spatial characteristics of UHI, the mainly spatial characteristics of UHI has been analyzed and it was:(1) The terrain of the suburbs is higher than the urban region, the gradient of the terrain height is small, and this geomorphological featrue is conducive to assemble of the heat, the UHI phenomenon of Changsha is obvious especially in the summer night;(2) The UHI distribution is similar to the outline of the urban construction. The LST of urban is 3-5℃ higher than the flat low areas close around the city, and 6-8℃ higher than further areas. The region which has the most obvious UHI phenomenon is the region surrounded by the second city ring road, and the UHI phenomenon gradually weakened from the city centre to suburb;(3) The impact of geomorphological character to UHI is notable, the relationship between vegetation index and UHI is Anti-related, it was indicated that the improvement of the vegetational status is very important to the elimination of UHI phenomenon, the implementation of the urban green land planning can reduce UHI effect.
通过分析长沙城市地区的土地覆盖、植被绿地状况与热岛空间分布状况的关系,揭示出研究区域UHI主要特征为:(1)从研究区域地表覆盖图发现,长沙市城区四周均有相对地势较高的山地,但地形梯度不大,接近四面环山的地貌特征,容易造成城区的热量聚集,有利于城市热岛效应的形成,使得长沙城区存在明显的热岛分布;(2)UHI分布与城市结构的轮廓相一致,长沙城区与地势相对平坦的近郊区的地表温度差异为3~5℃,与地势较高的周边远郊区的地表温度差异为6~8℃,长沙城区热岛效应与城市规划呈对应关系,热岛效应最显著的区域为二环线内,并从中心沿三环逐渐向郊区减弱;(3)地表覆盖类型对UHI的效应明显,长沙地区植被绿地状况与UHI呈现明显反相关分布,揭示出植被绿地对降低UHI具有重要的作用,大范围的绿地建设能有效降低UHI。
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The results indicate the mutual effect exists between the single coals, which could increase the maximum of thermal weight loss obviously and has a small effect on the temperature extent of the weight loss. The main pyrolysis production of coal is coke, but the main production of waste plastics is tar; the yield of water became decrease and the gas became increase by adding the waste plastics. And the CRI and CSR decreased with the ratio of waste plastics in coal. The main ingredients of tar from blend coal are aromatic hydrocarbon and alkane, while those of waste plastics are alkane and alkene. The result of co-coking with coal and waste plastics make the light tar and the aromatic hydrocarbon increase obviously. The combustible ingredient(CO、H2、CH4) of gas from co-coking with coal increase at different ratio; Co-coking with coal and waste plastics could increase the combustible ingredient and thermal value of gas.
结果表明,废塑料与煤混合物在煤的塑性温度区间内存在明显的相互作用,使最大热解失重峰迁移,热解速率变大,且随着废塑料配比的增加呈现规律性的变化;煤热解产物固体焦炭为主,而废塑料的热解产物以焦油为主,废塑料的添加使得总体焦炭和水产率下降,焦炉煤气和焦油的产率增加,即共焦化呈现出明显的&增油减水&效应;随着塑料添加量的增加,焦炭热强度呈现劣化趋势;废塑料代替瘦煤配煤炼焦可使其比例提高到3%而不影响焦炭的质量;纯煤焦化所得焦油以芳香烃类和烷烃类为主,而废塑料热解焦油以烷烃和烯烃为主;废塑料配煤炼焦,可使得的焦油呈现&环构化&和&轻质化&趋势;废塑料的添加可使煤气中的可燃组分(CO、H2、CH4)的含量均有不同程度的增加;废塑料配煤炼焦可以优化焦炉煤气的组成,增加煤气中的可燃组分,提高焦炉煤气的热值。
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The results showed that 9 natural vegetation types were distributed in 6 gradients. Except gradientⅠ, the dominant vegetation types along other gradients were all monsoon evergreen broadleaved forest. Gradient had greater effects on the distribution of seasonal rainforest and temperate coniferous forest, had some effects on the distribution of mountain rainforest, deciduous monsoon threat and river valley savanna forest, had smaller effects on monsoon evergreen broadleaved forest had no effect on warm-hot savanna forest and tropical bamboo forest.
结果表明:9个自然植被类型在6个坡度级均有分布;6个坡度级中除Ⅰ坡度级优势类型是水域外其他坡度级的优势植被类型均是季风常绿阔叶林;坡度对季节雨林和暖温性针叶林的分布影响较大,对山地雨林、落叶季雨林和河谷稀树灌木草丛的分布有一定影响,对季风常绿阔叶林和暖热性稀树灌木草丛的分布影响较小,对暖热性针叶林和热性竹林的分布无影响。
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?