孔径

Chirp Z transform based imaging algorithm, an important frequency domain algorithm for synthetic aperture radar, was studied in this paper.

基于Chirp Z变换的合成孔径雷达成像算法是一种重要的频域类成像算法，文中对该算法进行了研究。

The results show that the bioceramic coating contains such bioactive phases as hydroxyapatite and tricalcium phosphate during laser cladoping. And the interlaced flake structure and micropores of about 0.5~2 μm in size exist on the surface of accidented gradient bioceramic coating, suitable to grow new bone along with the surface and micropore.

结果表明：激光熔覆复合涂层中生成了羟基磷灰石和磷酸三钙等生物活性相，凹凸不平的表面出现网络交错的片状结构和微孔(孔径为0.5~2 μm)，有利于新骨沿着表面及内部连通微孔攀附生长。

The results show that the TiO2 porous films can be obtained by anode oxidation using 10% H2SO4, voltage of 120V on the surface of Ti-6Al-4V alloy, and the aperture size is about 100-200nm. The acerate CaHPO4 with size of 200-400nm can be gained by the electrochemical deposition. Ultimately, the acerate CaHPO4 changed to the sheet Ca10(PO4)62 after being treated with 0.1mol/L NaOH in autoclave at 200℃ for 10 hours .

结果表明：钛合金（Ti-6Al-4V）板经以10％的硫酸为电解液和电压为120V时阳极氧化，产生孔径大约为100-200nm的多孔氧化膜，再经电化学沉积，得到尺寸大小约200-400nm针状的CaHP04，最后经盛有浓度为0.1mol/LNaOH 水溶液、温度为200℃的高压釜中水热合成10h，针状的CaHP04 转变为片状的Ca10(PO4)62。

The method of determination of total particulate carbohydrate in sea water by Anthrone reagent has been studied.

海水中颗粒态有机质是指悬浮于海洋中的有生命和无生命的微粒，一般以。。45微米孔径滤膜过滤来区分溶解态和颗粒态，截留在滤膜上的为颗粒态物质。

A TeO_2 acousto-optic tunable filterwith large angular apert- ure is described.

本文描述了用 TeO_2 晶体制作的大角孔径声光可调滤光器。

In order to obtain pockety aperture, this paper prepares inorganic membrane with choosing diatomite of TengChong. The quality of this choosing diatomite is alterd by adding argentic oxide to improve its sorption capacity of ammonia and separate effect of ammonia water. Diatomite is choosed through the experiments of ultrasonic.

本文用精选后的腾冲硅藻土来制膜，力求使膜的孔径分布均匀，同时用氧化银来改性硅藻土来改变硅藻土对氨的吸附能力，提高氨／水分离效果。

The method comprises the steps of dipping and mixing the mipor asphaltic base globular active carbon prepared by the traditional method with an inorganic metal salt solution by a certain ration; heating under an inert atmosphere to 600 to 1200 DEG C at a temperature increasing rate of 1 to 20 DEG C/min for the secondary carbonization; using acid to wash off the remaining metal inside the carbonized material, so as to obtain the asphaltic base globular active carbon with a high mesoporous rate and narrow distribution of mesoporous spertures.

本发明提供了一种浸渍金属盐二次炭化制备中孔沥青基球形活性炭的方法，该方法是将传统方法制备得到的微孔沥青基球形活性炭按一定比例与无机金属盐溶液浸渍混合，然后在惰性气氛下以1～20℃/min的升温速率加热到600～1200℃下进行二次炭化，炭化料经酸洗除去内部残留的金属后，可制得中孔率较高、中孔孔径分布窄的沥青基球形活性炭。

Micrometer-sized m esoporous silica spheres (1.5～4 μm) with smooth surfaces, which have an avera ge pore size of 3 2 nm and a BET surface area of 972 m 2/g, can be prepared at 1∶1 weight ratio between EO 20 PO 70 EO 20 and CTAB.

在EO20PO70EO20与CTAB质量比为1：1时可得到形貌完好、表面光滑的介孔氧化硅微米球(1.5～4μm)，其平均孔径为3.2 nm，比表面积为972m2/g。

This method has been proved in theory and applied successfully in the signal processing of shallow water Bathymetric Side-scan Sonar System whose array is small.

这种方法使盖氏圆准则在不减少阵列有效孔径的前提下，仍然可以对有相关性的信源数得到准确估计。

At low heat flux, the results show that the heat transfer coefficients of mono and biporous surfaces are up to 120 and 70 kW/m2K, respectively.

实验结果显示，单孔与双孔径毛细结构的热传系数最高可达120 与70 kW/m2K。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新