查询词典 freeze

We find that the HBT radius for the freeze-out emission case is substantially greater than that for the case without absorption of multiple scattering.

研究发现，在冻结发射情况下的HBT半径要明显大于没有考虑多重散射吸收情况下的结果，源的膨胀速度导致HBT半径变小。

The transverse expansion velocity of particles emitted at the freeze-out time is adopted as a signal of the pressure gradient.

用压力梯度对所得结果进行了分析。径向速度用来表征压力梯度。

The Milan club have become his home, Crespo has confirmed many times how much the atmosphere at the club has stimulated him and given him a new lift and will to play football after facing what was a big freeze-out in England.

米兰成为了他的家，克雷斯波也多次表示，球队的气氛在激励着他，给了他新生的机会，在离开不如意的英格兰后有信心重新开始。

However, a unique critical excitation energy is revealed in different freeze-out densities when the excitation energy is used as a variable instead of temperature.

当激发能代替温度作为一个自变量时，临界激发能将不再灵敏地依赖于系统的冻结密度。

However, lockup option in the subscribing agreement between the issuer and strategic investors can easily be abused as an anti-takeover or freeze-out means.

但定向增发认购协议中锁定期权的安排很容易被上市公司控制者滥用作抵制敌意收购、排挤异议股东的手段。

Longitudinal flow ; transverse flow ; central dip ; thermal freeze-out

纵向流；横向流；中心下凹现象；热解冻

Compared to S-S collisions, Pb-Pb collisions live longer until thermal freeze-out, expand more in the transverse direction, develop more transverse collective flow.

与S-S碰撞相比较，Pb-Pb碰撞在热解冻前膨胀时间更长，横向膨胀更充分。

ABSTRACT It occurs that the performance of silicon bipolar transistors degradates seriously at low temperatures due to the gap-narrowing effect、the carrier freeze-out effect and the trapping effect of shallow dopants, which has significant influence on the operation of ultra-high-speed bipolar circuits and BiCMOS circuits at low temperatures.

硅双极晶体管由于禁带变窄效应，载流子冻析效应和浅能级杂质陷阱效应的作用，其电流增益和频率性能在低温下严重退化，从而极大地影响了低温高速双极电路和高性能的低温BiCMOS技术的发展。

Simultaneously, the exports of ionization rate and nonionzed concentration are set up as a powerful tool for studying thoroughly the freeze-out effect. dN〓/dp and dN〓/dn are neglected in the linearized equation system of the iteration methods of Newton and Gummel, due to having lower 15 orders or more than dN〓/dn and dN〓/dp, thus the computing effort is cut down with no effect on precision. A new cut-off technique is adopted to accelerate the convergence speed, about twice reduced for Newton iteration method and six times or so for Gummel iteration method. The approximate formulae of Fermi-Dirac statistics are also put forward with simpler form and higher precision. 3. A term dependent on time is added to the electron and hole current succession equations respectively. It is only this model that conservation of charge in transient analysis and alternating small-signal analysis at low temperature can be kept by. 4. The performance of SE-PISCES is explained by the simulation example of PISCES-2B, diode.

研究了低温半导体器件模拟的数值方法：对载流子浓度进行了新的归一化；编制了不考虑掺杂所引进的内建电场时的电离率计算程序；由于低温杂质电离率随偏压状态而变化，为此编制了每次求解迭代时的电离浓度计算程序，并将其插入到求解迭代程序中；同时，设置了杂质电离率和未电离杂质浓度的出口点，为更深入地研究冻析效应提供了有力工具；在Newton迭代法和Gummel迭代法的线性化方程组中忽略了dN〓/dp、dN〓/dn，是因为它们比dN〓/dn、dN〓/dp低15个数量级以上，这样减小了计算量又不影响模拟精度；对Newton迭代法和Gummel迭代法采取了新的截断技术，提高了收敛速度，Newton法迭代法和两次左右，Gummel法减少六次左右；给出了表达式更简单而精度更高的Fermi-Dirac积分近似计算公式。

Based on the analysis of the traditional thermal storage, the partial freeze-up of ice-on-coil used conductive plastics is proposed.

在对传统的蓄冷方法分析的基础上，提出了采用导热塑料的不完全冻结方式的蓄冰系统。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。