1) ultrasonic field
超声场
1.
Electrochemical property research of nickel nanopowders prepared under ultrasonic field;
超声场制备纳米镍粉的电化学性能研究
2.
Nano copper powder produced by chemical reduction under ultrasonic field and its influence facts;
超声场辅助增强化学还原法制备纳米铜粉及影响因素
3.
Effects of Melt Temperature on Solidified Structure of Sn-Sb Peritectic Alloy in Ultrasonic Field;
超声场下熔体温度对SnSb合金凝固组织的影响
2) Ultrasound
[英]['ʌltrəsaʊnd] [美]['ʌltrə'saund]
超声场
1.
Preliminary study on the effect of ultrasound on supercritical carbon dioxide extraction of pyrethrins;
超声场强化超临界CO_2萃取除虫菊酯的初步研究
2.
Effect of ultrasound on the leaching of electrolytes in a capillary;
超声场对毛细管内电解质浸出过程的影响
3.
Effect of ultrasound on diffusivities of electrolyte in a capillary;
超声场对毛细管内电解质扩散系数的影响
3) ultrasound field
超声场
1.
Study on the osmotic dehydration of longan sarcocarp enhanced by ultrasound field;
超声场强化龙眼渗透脱水研究
2.
Water losses rates and solid gain rates of carrot were obtained by experiment consequently,the water losses rates constant and the solid gain rates constant of carrot with ultrasound field and nature were ascertained.
对超声场强化胡萝卜渗透脱水过程中的质量传递进行了研究,建立了渗透脱水传质模型。
3.
The effect of ultrasound field on glycyrrhizic acid yield and purity of crude glycyrrhizic acid was studied during the course of extracting glycyrrhizic acid by soaking glycyrrhiza powder in ammonia solution.
研究了以甘草粗粉为原料，用氨水作为溶剂，在超声场的介入下对甘草酸提取率和粗品纯度的影响，与未加超声场的传统方法相比，超声场的介入可显著缩短提取时间，并获得较高的提取率。
4) ultrasonic
[英][,ʌltrə'sɔnɪk] [美]['ʌltrə'sɑnɪk]
超声波声场
1.
Measurements of ultrasonic fields andtheir standards;
超声波声场测定法及其标准
5) ultrasonic field
超声波场
1.
The mechanism of desorption enhanced by ultrasonic field was expatiated.
根据超声条件下吸附相分子的受迫振动和非吸附相分子的波动,分别讨论了吸附相分子及非吸附相分子在超声波场中获得的能量并进行了数量级分析和比较。
2.
According to the forced vibration of the molecules in the adsorption phase and the fluctuation of the molecules in the fluid phase within an ultrasonic field,the energies obtained by the molecules in both the adsorption phase and the fluid phase are then investigated.
从分子动力学规律出发,建立了Langmuir吸附系统在外场作用下的吸附相平衡关系式,并根据超声条件下吸附相分子的受迫振动和非吸附相分子的波动,分别讨论了吸附相分子及非吸附相分子在超声波场中获得的能量,结果表明:在超声波场中,吸附相分子比非吸附相分子获得更多的能量是Langmuir吸附平衡等温线降低的本质所在。
6) ultrasonic irradiation
超声波场
1.
The reaction mechanism of dispersion polymerization of styrene assist-initiated through ultrasonic irradiation is put forward through test and theoretical analysis,which is stepwise carried out in different regions.
通过实验研究和理论分析,提出了超声波场作用下分散聚合的反应是分区域分阶段逐步进行的反应机理。
2.
On the basis of experiment design, the feasibility study on dispersion polymerization of styrene assist-initiated through ultrasonic irradiation was done.
通过实验设计,对超声波场下辅助引发苯乙烯(St)分散聚合反应的可行性进行了研究。
补充资料：超声场测定方法
超声场测定方法
measurement methods for ultrasonic field
超声场测定方法的肋川c 6eld)(~u块”犯nt右刀又与书2。姗th叼sfor日-t的空间。不同的超声振动源以及不同的传播条件将形成不同的超声能量的分布空间，即不同的超声场。根据惠更斯原理，探头发射面上的每一点都应看成是一点状声源，它们各自发射的球面子波在声场中相遇时将发生干涉，结果使声场内声压或声强变化剧烈，起伏不均，甚至在某些空间点上声压为零，而另外一些空间部位的声压则呈极大值。远场呈现出放射状，并逐渐过渡到球面波。 声场测量方法如下:首先安装好被测超声探头和水听器，定位装里可使水听器沿3个正交轴在水槽声压┌─────┬─┬─┐├丝──┐ │…│{ ││_八 │ │ │ │└┬──┼─┼─┴─┘ │.、 │. │ │ │\ │ └──┴─┘ 声脉冲幅度测t原理图内移动，并可绕:、y轴转动。利用定位装里调节水听器，在被测探头的辐射声场中找到声压最大值，其声脉冲波形如图所示。该信号经放大后输人到信号处理设备，求出脉冲声压平方积分P;和脉冲宽度‘d。t‘为瞬时声压平方对时间积分值达到其终值(即P。)之1崛的时刻t0:，‘与达到该终值之以跳时刻气，，.之间的时间间隔的1.25倍。参见超声声强可求得: 尸，__P偏“两和‘，“砂式中:I，为空间峰值脉冲平均声强，I，为空间峰值时间平均声强，p为介质密度，。为声速，T为声脉冲重复周期。(熊大莲)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条