这类新型谐振单元尺寸大大缩小,结构紧凑,为低频段的频率选择性表面阵列的实现提供了可能。
These new resonant cells are greatly reduced in dimensions and very compact in structures, so it is possible to realize the lower frequency selective surface.
研究了诺卡氏菌在不同影响因素条件下,在黄铁矿和闪锌矿表面的选择性吸附。
The selective adsorption of Nocardia on the surface of pyrite and sphalerite was studied under various conditions.
乙基化的选择性则与催化剂的表面酸强度、酸性中心位置和孔道结构等因素有关。
Ethylation selectivity, was affected by strength of surface acid sites, location of acid sites and pore structure.
研究了草分枝杆菌在不同的影响因素条件下,在黄铁矿和闪锌矿表面的选择性吸附情况。
The selective attachment of Mycobacterium Phlei on the surface of pyrite and sphalerite is studied by various factors.
由于纳米材料催化剂具有独特的晶体结构及表面特性,因而其催化活性和选择性大大高于传统催化剂。
Nanometer catalyst material had peculiar crystallographic structure and surface property, thus its catalytic activity and selectivity were too much greater than these of traditional catalyst.
本文的主要内容是介绍晶体硅太阳电池选择性扩散新工艺和表面钝化的理论研究。
It is described that the innovatory technology of selective diffusion and study on surface passivation in theory for crystalline silicon solar cell.
第二,选择性只与表面的库伦作用力有关。
Second, the selectivity depends on the Coulomb interaction on the surface, not the lipophilicity.
自然杀伤细胞通过其表达的不同类型的受体选择性识别细胞表面的相应配体,提供自然杀伤细胞反应的自我调节信号。
Different types of receptors expressed by natural killer (NK) cells may selectively recognize their specific ligands on some other cells and provide self-regulatory signals to control NK responses.
这几种表面活性剂对煤浮选有良好的促进作用,具有捕收能力强、选择性高、节油明显等优点,有较好的应用前景。
The tests show that the surfactants have good behaviour in floatation, and have advantages, such as good collective power, high selectivity and saving oil , so they have good prospect.
在电极表面修饰特殊的化学基团,能提高检测灵敏度和选择性。
Modification of specific chemical groups on the electrode surface can improve the detection sensitivity and selectivity.
本发明还涉及本发明提供的塑料组合物在塑料表面选择性金属化中的应用。
The invention also relates to application of the plastic compound in the selective metallization of a plastic surface.
本发明还提供了一种塑料表面选择性金属化的方法。
Moreover, the invention provides a method of the selective metallization of the plastic surface.
还利用短链硫醇分子和短链、长链硫醇分子形成的混合自组装膜,研究了自组装膜表面的酸性基团的解离性质和混合自组装膜的选择性解吸研究。
The mixed SAMs have also been prepared, the features of dissociation activity of acidic group in the interface and selective desorption have also been studied.
这一结果证明,真空紫外光刻后,蛋白质在基材表面的吸附呈现区域选择性,可以形成蛋白质图案。
This result proved that proteins were absorbed on the surface selectively, and protein patterns could be formed then.
纳米分子筛因具有高的外表面积和短的孔道结构而显示了独特的催化活性和选择性,近年来已成为催化界的研究热点。
Novel catalytic performance and selectivity from nano-size zeolites with high exterior surface area and shorter pore pathway have aroused great interest in catalysis field.
强流脉冲电子束轰击可以实现316L不锈钢表层的选择性净化,表面织构化及表面快速钛合金化,从而提高不锈钢的耐蚀性。
The main results are summarized as follows:1, HCPEB bombardment induces the selective purification on the top surface of 316L stainless steel, surface texturation and rapid surface alloying with Ti.
彩色表面对可见光谱有较高的选择性,黑白系列的表面色对可见光谱的反射没有选择性。
The color surface has much more selectivity, while there isn't selectivity of visual spectrum for black and white surface color.
同时,硼化物覆盖了表面酸中心,堵塞了孔道,因而提高了反应的选择性;
At the same time, boride thus formed covered the surface acid sites and blocked the pores and channels, leading to higher para-selectivity.
本文介绍自行研制的高对比度滤光片。它具有较低的表面光反射率、选择性透过率和电磁屏蔽特性。
A new type of high contrast filter has been investigated in this paper. lt has features of lower light reflection on surface, selective transmission and effective electromagnetic screen.
含硅粘结剂的催化剂抗磨损能力和焦炭选择性较好,催化剂的强度可以通过添加表面活性剂和铝盐得到改善。
FCC catalysts using silica sol as the binder features improved selectivity to coke and higher resistance to attrition. strength of the catalysts can be enhanced by adding surf…
高碘酸钠选择性氧化后亚麻纤维大分子上生成了活性醛基,随着氧化程度的加深,纤维表面变得粗糙,结晶度不断降低。
The surface of flax fiber became rough and crystallinity decreased while increasing oxidized degree of flax fiber. The structure and properties of the proteinic oxidized flax fiber were studied.
未添加表面活性剂所制得催化剂样品的乳酸反应转化率为33.5%,而丙烯酸及乙醛的选择性分别为40.2%和1.8%。
The conversion of lactic acid was 33.5%over catalyst synthesized with no surfactant, while the selectivity of acetaldehyde and acrylic acid were 40.2%and 1.8%respectively.
未添加表面活性剂所制得催化剂样品的乳酸反应转化率为33.5%,而丙烯酸及乙醛的选择性分别为40.2%和1.8%。
The conversion of lactic acid was 33.5%over catalyst synthesized with no surfactant, while the selectivity of acetaldehyde and acrylic acid were 40.2%and 1.8%respectively.
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