强磁性

At the normal state, porphyrin molecules do not have EPR signal. However, light excitation may cause a transition of porphyrin molecules from singlet to triplet. At the same time, the change from diamagnetism to paramagnetism occurred to porphyrin molecules. In this case, the two un-paired electrons are nearby each other and cause a strong interaction, giving EPH signal with sharp peak at g = 2.000. The g value increased with an increase in electron cloud density.

常态下卟啉分子没有EPR信号，在光的激发下，卟啉分子由原来的逆磁性分子变成顺磁性的激发三重态分子，这种激发三重态分子在分子轨道上具有两个未成对电子，这两个电子相距很近，彼此之间发生很强的相互作用而产生电子，它的g值随卟啉共轭体系平均电子云密度增大而变大。

At the normal state, porphyrin molecules do not have EPR signal. However, light excitation may cause a transition of porphyrin molecules from singlet to triplet. At the same time, the change from diamagnetism to paramagnetism occurred to porphyrin molecules. In this case, the two un-paired electrons are nearby each other and cause a strong interaction, giving EPR signal with sharp peak at g =2.000. The g value increased with an increase in electron cloud density.

常态下卟啉分子没有EPR信号，在光的激发下，卟啉分子由原来的逆磁性分子变成顺磁性的激发三重态分子，这种激发三重态分子在分子轨道上具有两个未成对电子，这两个电子相距很近，彼此之间发生很强的相互作用而产生电子，它的 g 值随卟啉共轭体系平均电子云密度增大而变大。

When pH is 5, temperature is 80℃, stir speed is 200 r/min, the dosage of sodium oleate is between 0.4 and 0.5 times of the quantity of ferrous, the effect of enwrap is best and the size of magnetic nanoparticles is small, the magnetism of magnetic nanoparticles is strong.

当PH=5，温度为80℃，搅拌速度为200r/min，油酸钠的用量大约为Fe(上标 2+)的0.4~0.5倍时，包裹效果最好，得到的磁性颗粒小、磁性强。

Card line structure and by using magnetic nickel-plated treatment, permeability strong, anti-corrosion resistance.

卡线结构采用磁性材料并经镀镍处理、导磁性极强，抗腐蚀性强。

The austenite of the alloys possesses strong ferromagnetism, while martensite showes the characteristics of paramagnetism.

奥氏体具有强的铁磁性，而马氏体表现为顺磁或反铁磁性。

Through this issue, we found that with 2% NaOH-NALC digested within 10 minutes in the rapid decomposition of the viscous sputum, in ensuring the effectiveness of digestion at the same time not too much because of the role of NaOH to kill bacteria (time to 20 minutes), and would not affect the role of magnetic particles; quantitative simulation of self-made through the application of clinical samples, we compared the acid-fast stain and auramine O staining of the detection limit, auramine O fluorescence staining against the backdrop of a clear dark green light acid-fast stain of Mycobacterium tuberculosis than the white background of the red eye-catching TB is more capacity, auramine O staining in the detection limit of 0.05 to 0.001 between Maxwell, higher than the acid-fast stain of Michael's 0.05 units, The former is more sensitive; In addition, the accumulation of magnetic nanoparticles of the samples after the smear, in the microscope show the number of TB was significantly higher than that of the specimens has not been enriched.

通过本次课题，我们发现用2%NaOH-NALC消化液可在10分钟内迅速裂解痰液的粘性介质，在保证消化效果的同时不会由于NaOH过强的作用杀死细菌（时间控制在20分钟内），亦不会影响磁性颗粒的作用；通过应用自制定量模拟临床标本，我们比较了抗酸染色和金胺O荧光染色的检出限，金胺O荧光染色黑暗背景下发出明显绿色亮光的结核杆菌较抗酸染色白色背景中的红色结核杆菌更容醒目，金胺O荧光染色的检出限在0.05~0.001个麦氏单位之间，高于抗酸染色的0.05个麦氏单位，前者敏感度较高；另外，经过磁性纳米颗粒富集作用后的标本涂片，在镜下显示其结核杆菌数量明显高于未经过富集的标本。

The Ni-Fe and Mg-Al-Fe-LDH show paramagnetism at normal temperature, the calcined samples of LDHs show super-paramagnetism. The magnetization increases with the higher Fe~(3+) content and is independent of the crystal structure of LDHs. Magnetization of the calcinates of Ni-Fe-LDHs is higher than the Mg-Al-Fe-LDHs.3. Two novel SFME systems were found for the first time, that is furaldehyde/DMF/water and furaldehyde/ethanol/water system.

结果表明，Ni-Fe和Mg-Al-Fe型LDHs本身及其煅烧产物在常温下均呈现顺磁性，其煅烧产物均呈现超顺磁性；同类LDH中其煅烧产物的磁性大小与Fe~(3+)含量成正比而与LDH的晶体结构无关，Ni-Fe LDHs及其煅烧产物的磁性强于Mg-Al-Fe LDHs及其煅烧产物，。3。

These samples were collected along a main street across the urban area and a mountain route from foot to the top. Results demonstrate that the main magnetic minerals in the street dust are magnetite, maghaemite and haematite with some paramagnetic minerals. Plots of Mrs/Ms vs. Bcr/Bc and Xfd % vs. X ARM/SIRM indicate that the main grain size of magnetic minerals in the street dust are pseudo single domain. The results reveal that the Lanzhou city is more polluted in spring than in summer. The main pollution sources are anthropogenic activities （81.9%） and natural dust （18.1%）, especially the former. The spatial distribution of pollution is controlled by the topography and weather conditions.

结果表明，兰州市街道尘埃中磁性矿物含量较高，主要磁性矿物是铁磁矿、磁赤铁矿和赤铁矿，并伴有少量顺磁性矿物；磁性矿物粒度主要是准单畴；市区污染春季较夏季严重，春季高频率的强沙尘暴可能带来了更多的磁性矿物；兰州市污染物的沉积和分布在很大程度上受到气象条件和地形地貌格局的影响，市区每个盆地东端高于其它地区；兰州市污染以人为活动产物为主，人为活动贡献约为81.9％，其中包含交通约22.6％的贡献，自然降尘贡献约为18.1％；特殊的地形和气象条件，使得兰州市区的大气环境容量比平原城市的环境容量小得多，进而导致严重的大气污染。

We found that the microstructures and magnetic properties were not influenced with depositing temperature and sputtering power. The magnetic properties were only affected by Fe layer thickness. When the Fe layer thickness is thinner than 5 nm, weak exchange coupling raised between Fe cap layer and FePt recording layer. When the thickness reached 10 nm, the strongest exchange coupling formed. Film coercivity didn't distinctly vary as Fe layer thickness is thinner than 15 nm. Consequently, we measured DCD curves and had the same conclusions. Indeed, the appearance of exchange coupling is confirmed with 10 nm Fe cap layer.

我们并发现溅镀Fe之温度与瓦数，并不会对结构或是磁性质有显著的影响，Fe厚度的改变虽然也不会改变结构，但是对Cr/Pt/FePt/Fe磁性质却有明显的变化，当Fe厚度薄时(3、5 nm)，在Fe和FePt界面仅有弱的交换耦合力产生，Fe厚度是10 nm时，此时交换耦合力为最强，厚度再增加到15、20 nm时，Hc反而略为上升，同样的我们量测DCD曲线，也证实了Fe厚度10 nm的确有交换耦合力存在。

Through this topic, we discover with the 2%NaOH-NALC digesting fluid may in 10 minute in rapid decomposition sputamentum resisting medium, during guarantee digestion effect not because the NaOH strong function will have killed the bacterium (timing control in 20 minutes), also will not affect the magnetic pellet the function; Through the application self-restraint quota simulation clinical specimen, we have compared the acid-fast stain and the pyoktanin yellow O fluorescence dye pick out limit, the pyoktanin yellow O fluorescence dyes the dark background to after-crop the obvious green bright the bacillus tuberculosis to compare in the acid-fast stain white background the red bacillus tuberculosis to accommodate strikingly, the pyoktanin yellow O fluorescence dyes picks out limits between 0.05~0.001 Mai unit, is higher than the acid-fast stain 0.05 Mai unit, the former sensitivity is high; Moreover, concentrates the function after magnetic nano particles the specimen smear, under the mirror demonstrated that its bacillus tuberculosis quantity is higher than the specimen which obviously has not passed through concentrates.

通过本次课题，我们发现用2%NaOH-NALC消化液可在10分钟内迅速裂解痰液的粘性介质，在保证消化效果的同时不会由于NaOH过强的作用杀死细菌（时间控制在20分钟内），亦不会影响磁性颗粒的作用；通过应用自制定量模拟临床标本，我们比较了抗酸染色和金胺O荧光染色的检出限，金胺O荧光染色黑暗背景下发出明显绿色亮光的结核杆菌较抗酸染色白色背景中的红色结核杆菌更容醒目，金胺O荧光染色的检出限在0.05~0.001个麦氏单位之间，高于抗酸染色的0.05个麦氏单位，前者敏感度较高；另外，经过磁性纳米颗粒富集作用后的标本涂片，在镜下显示其结核杆菌数量明显高于未经过富集的标本。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。