And the results have good repeatability , , influence and its mechanism of substrate temperatures ( from 120 to 300 ) and heat treatment temperature ( 400 , ih ) on the chemical composition , micro - structure and optical properties of tio _ ( 2 ) thin film deposited at the condition of pressure in depositing chamber being 2 x 10 - 2pa and deposite rate being o . znm - s - 1 are studied through modern analysis technologies Tio _ 2薄膜的化学计量和晶体结构直接影响薄膜的性能，本文采用xps 、 xrd 、 sem和uv - vis分光光度计研究了热处理前后不同的基片温度条件( 120 、 200和300 )对薄膜成分、结构和光学性能影响的规律及其机制。
The preliminary results as follows : - different doses ir induced gl / s cell cycle checkpoint in hela cells cyclin e / cdk2 kinase activity in hela cells decreased at ih , then increased at 3h , reached maximum at 12h exposed to2 gy - irradiation ; but its activity upregulation started at ih , and reached maximum at 12 h exposed to logy irradiation R )对细胞周期g1 / s检查点的影响cycnne / cdkz激酶活性在zgy照射后lh略有下降， 3h略有回升， 12h活性达到最大; 10gy照射后其活性从lh开始增加， 12h活性达到最大。
2 . 32 discarded unmutured oocytes on dayo , forty - two discarded unfertilized oocytes on day2 and 91 discarded unfertilized oocytes on day3 ( dayo refers to the day of oocyte collection ) from 53 icsi cycles ; 127 normal fertilized embryos from 62 ivf and 41 icsi cycles with a grade of ih - ivand improper to freeze after day3 embryo transfer ; 97 discarded embryos after day3 thawed - embryo transfer with a grade of iii - ivfrom 39 cycles . 3 天)废弃的未成熟卵子32个，受精后第二天山2天)未受精卵子42个和第三天口3天)未受精卵子91个; 62个ivt和41个icsl周期中d3天移植后评分较低的in一w级不适宜冷冻的正常受精胚胎共127个， 39个解冻周期中移植后废弃的m一w级胚胎97个。
Meanwhile the photocatalytic performance of the films by using of rhodamine b as evaluation standards was studied . the results showed that in this experiment condition the optimal preparation condition for tio2 films which have better photoactivity was found to be : tio2 sol concentration 0 . 7mol / l , the amount of peg 0 . 5g , coating cycles 3 , heat - treated terms 480 c , ih 研究结果表明：在本实验条件下，具有较好光催化活性的tio _ 2薄膜的最佳制备条件为： tio _ 2溶胶的浓度为0 . 7mol 1 ，聚乙二醇的加入量为0 . 5g ，镀膜层数为3 ，热处理温度为480 ，保温1h 。
These studies support the hypothesis that ih might arise from invading angioblasts or placental cells and these epcs excessively secrete vascular growth factors , resulting in an increasing favorable local environment for endothelial proliferation , and contribute to aberrant endothelial growth in ih 认为可能的发病机制是调控细胞增殖及分化的基因区发生突变的内皮祖细胞过度分泌血管形成因子，造成局部微环境血管形成抑制的失衡，内皮细胞迅速增殖而形成婴幼儿血管瘤。
First , after investigation of two original strains " biological characteristics , we studied the main influence factors on protoplasts formation and regeneration in s . mycarofaciens and s . erythreus , and determined the best protoplasts formation and regeneration conditions of two original strains . the former shake - cultured in s " medium at 28 ? , 220r . min ~ ( - 1 ) for 24h , lysised by 3mg / ml lysozyme , keeping warm at 32 ? for 50 ~ 60min , regenerated on r _ ( 5 " ) medium , 28 ? for 5 ~ 6d . the latter used two - step culture , then used img / ml lysozyme keeping warm at 37 ? for ih ; the protoplasts were plated on r5 " regeneration medium at 28 ? for 5d 首先在对两亲株的生物学特性进行了鉴定后，考察了影响两亲株原生质体形成和再生的主要因素，确定了生米卡链霉菌和红霉素链霉菌原生质体形成及再生的最佳条件：前者用s培养基，在28 、 220r . min ~ ( - 1 )培养24h后，用3mg ml的溶菌酶在32恒温酶解50 60min ，得到的原生质体在干燥的r5培养基上28倒置培养5 6天，可得到再生率在20左右的再生菌落；后者采用二级菌丝培养，用1mg ml的溶菌酶在37恒温酶解1h左右，得到的原生质体也在干燥的r5培养基上28倒置培养5天，即可得到再生率在20左右的再生菌。
