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The mechanical property testing shows that the seamless PLLA tubes perform excellent radial strength,which indicates that the mechanical properties of biodegradable stents made of these tubes was supposed to be excellent.PLLA and its composites were first used in preparing seamless tubes as antecedency of laser-cut biodegradable coronary stents in china.Finite element analyses of the biodegradable coronary stent model indicate the explorative design basically meets the requirement of reasonable and applicable stents.There is not such kind of research yet in domestic.Optimum laser-cuttting parameters of CO2 laser was cauculated based on experiential formula,within it,biodegradable coronary stents,especially those with complex structure would be manufacutured from seamless tubes quickly by laser microprocessing with high consistency to the design model.The processing efficiency of the CO2 laser demonstrated in experiential formula by us will play an important guiding role in manufacturing biodegradable stents by laser-processing.Our stents that ascribed to laser-cutted,slotted tube stent are proved to be biodegradable, self-expandable and good biocompatible,basically reach the international level on the aspest of manufacturing procedures and design.

研究结果表明:壳聚糖改性材料综合性能优于纯PLLA,更适合于作为可降解冠脉支架的原材料;自主设计的探索性自膨胀管状闭环型可降解冠脉支架的性能符合冠脉设计要求,设计、验证生物可降解冠脉支架模型的研究在国内还未见报道;制备的改性PLLA无缝管的力学性能优越,可通过激光切割获得冠脉支架,这是国内首次采用聚乳酸材料来制备通过激光加工出可降解冠脉支架的无缝管;二氧化碳激光器加工精度能达到加工要求,加工出来的血管支架名义设计与实测值误差小,实现了冠脉支架、尤其是带有复杂外观设计冠脉支架的快速化、规范化加工,对二氧化碳激光器加工聚乳酸材料的效果研究在国内外属于首创,获得的经验公式对日后的深入研究有重要的指导意义;制备的支架为激光切割管状闭环型冠脉支架,支架外观设计、支架加工手段、支架的性能都基本接近国际水平,支架样品符合设计的理念,可以实现自膨胀功能。

A novel layout of IC transformer is proposed to achieve both high turn ratio and coupling coefficient in this paper. In order to discuss the coupling coefficient, the layouts are designed with different turn ratio. The thesis is mainly includes of three experiment topics. The multi-stack structure is proposed to achieve prior goal in first topic. Two groups of proposed devices are designed to maintain identical self- inductances in transformer's primary and secondary coils. Total six devices are fabricated in foundry 90-nm CMOS technology. Using the 9 and 5 metal layers in primary and secondary coils in a specific layout, measurement results show that the transformer has the largest benefit using the bottommost return layer in layout design. In one word, the adoption of more metal layers to construct different turn ratio transformer shows not only improving the N value but also saving the chip area in this experiment.

中文摘要本文是针对不同圈数比变压器探讨其耦合量的变化,并且期望其变压器能同时达到高圈数比及高耦合系数的特性,本论文主要可分为三个实验主题,首先第一个主题提出以90nm CMOS制程技术实现的多层金属层的布局方式,并以相同的一、二次侧自感值分为两组,利用不同返回层来达到不同的圈数比,且从量测结果可以得知,在变压器布局设计上使用最底金属层来作返回层会得到较好的特性,最后从此实验得知一结论,利用合适的多层金属架构达到不同的圈数比,不仅可以改善圈数比,还可以缩小晶片面积。

There is a small action range in archery.Simple methods and analysis is inadequate,so the author,on the basis of testing the archery athletes in national team with the Qualisisy infrared photoelectric testing system,Footscan sole pressure testing system,Noraxon myoelectricity remote testing system, etc,analyzes comprehensively the action technique of the athletes in national team from the posture,body motion characteristics,body posture equilibrium and stability,distribution of centre sole pressure, myoelectricity characteristics,etc,with the methods of relative software and data statistics.The conclusions and the suggestions are as follows:Conclusion:Firstly,the communality of posture angle,muscle strength,the activation order of main muscle during raising the bow, raising the bow and the timing of the raising could be used as the evaluation index of technique action in archery;Secondly,the length of the time needed in the different periods couldn\'t be used as technique evaluation index since it has no relation with the result.But the time of raising and pulling back the row is relatively fixed,and the time has a positive relation with the archery achievement of the national team in China.Thirdly,the central index of the sole pressure could be used as the reference criterion of selecting athletes and forecasting achievement.During playing archery,the interrelation between the central index of the sole pressure and the achievement is different individually and in different periods.Fourthly,there is low stability of the archery athletes in the front and back direction during the action, caused by the athletes\' posture disequilibrium of dorsal abdominal muscle and non-professional sport shoes..Fifthly,kinematics and electromyography shows that the people on archery in China haven\'t taken the raising and pulling back the row seriously.

射箭的肢体动作幅度小,简单的手段和分析不能满足其需要,笔者结合各种运动生物力学仪器优点及射箭项目的特性,选用Qualisisy红外光点测试系统、Footscan足底压力测试系统、Noraxon肌电遥测系统等对国家队射箭队运动员进行多方位的测试,运用相关软件及数理统计方法,对运动员的射箭动作技术,从射箭动作的姿态构架、肢体运动特点,身体姿态平衡稳定性、足底压力中心分布、肌电特性等进行全面分析,结论及建议如下:结论:第一,姿态角、肌肉用力激活程度、举弓阶段主要用力肌肉激活顺序、举弓、开弓时间等的一致性可作为射箭技术动作评价指标;第二,各动作阶段所用时间的长短不能作为技术评价指标,但举、开弓的时间相对较固定,开举弓时间比与中国国家队射箭成绩正弱相关达到显著性;第三,闭眼状态下足底压力中心单位面积轨迹长与144支箭最好成绩正相关达到显著性,可作为身体素质、选材及成绩预测的参考依据;实射时身体平衡的足底压力中心指标与成绩的相关程度具有个体性差异、阶段性差异;第四,射箭运动员实射时身体在前后方向上的稳定性较差,这与运动员的站立姿态、腹背肌力量的不匹配以及射箭没有专业运动鞋有关;第五,运动学及肌电学都表明中国射箭训练对举弓、开弓阶段的重视不够,背部肌肉用力特征不明显,撒放技术合理性不高。

Hydrastine(97.7%) was obtained with extracted rate 65%by extracting the Goldenseal with mixed Solvent;Berberine hydrochloride (99.9%) was obtained by adding hydrochloride acid to alcohol (alcohol∶H 2O=1∶1) solution of the extract and Hydrastine (99.5%) was gained by CLC method with the yield 1%.

原药材用混合溶剂直接提取分离,可得到含北美黄连碱 97.7%的结晶体,提取率达 6 5%;提取物经醇水溶解、酸化,可直接获得小檗碱盐酸盐结晶,纯度达到 99.9%;用柱色谱法,可得到 99.5%的北美黄连碱,收率约 1

We try to find out more methods to releasing pressure and its probabilities to provide design circles or the related toy manufacturers with guidelines and opinions.The study result showed that Healing toys can be separated into five types, the type that is a personification in vision for appreciation purpose, the type that is controlled by the human voice and can interact with people, the type that can make an action by theuser's touch control for entertainment purpose, the type that is sensitive to the light and reacts with regular actions, and the type that contains IC chips and has some kinds of artificial intelligence. Through three rounds of Delphi method, we knew that the word "Healing" was named because the healing toys can soothe, relieve and transfer the strong pressure inside somebody's mind. The characteristics of those toys are having cute appearance, harmlessness, tenderness, lovableness, two-way interaction, addition function that can give surprise, and relationship related with emotions of oneself.The concrete feelings given by the healing toys are happiness, relaxation, reducing pressure, transferring attention, deferring bad moods, and having the power to change emotions. Besides, the healing toys are considered suitable to be assisting materials to heal somebody's mind by playing games because it has characteristics of helping to transfer or relieve negative emotions and helping to transfer attention. The questionnaire results from Mature age generation indicated that the most favorable, healable and desirable toy is the type that contains IC chips and has some kinds of artificial intelligence; and the type that is a personification in vision for appreciation purpose is in contrast. Considering the related perspectives toward the healing toys, people of Mature age generation mostly agree the expert, Delphi for his viewpoints.

研究结果显示疗伤系玩具可分为「视觉拟人化观赏型」、「声控感音式互动型」、「触控式动作娱乐型」、「感光规律模式互动型」与「智慧电子IC科技型」五大类型;经由三回合制Delphi法可得知疗伤系玩具被称之为「疗伤系」是因其具「抚慰安定」、「放松功能」与「可转移内心压力达到治疗」等原因,其特性则是具「可爱造形」、「无伤害感」、「柔和」、「使人喜爱」、「双向互动性」、「惊喜附加功能」及「与自己情感有相关性」此7项,而疗伤系玩具赋予的具体感觉层面有「愉悦感」、「放松感」、「抒压感」、「转移注意力」、「暂缓坏情绪」和「具转移情绪的力量」,另外,疗伤系玩具是被认同适合作心理或游戏治疗辅具的,因其具「可帮助转移或抒解负面情绪」、「放松感」及「可帮助转移注意力」等特质;而熟龄问卷的调查结果则指出,对熟龄族最具有好感、疗伤感及购买欲的疗伤系玩具是「智慧电子IC科技型」,反之则是「视觉拟人化观赏型」,经由因素分析后也得知,疗伤系玩具所具有的意象感为「移转情感性」、「感官舒适性」、「抚慰心灵性」与「互动体验性」此四大特性层面;另外,熟龄族大都皆「同意」Delphi法专家对疗伤系玩具所探讨出的相关论点与看法。

The conclusions were as follows: theνO-H andνC=O IR absorption maxima shifted towards higher wave numbers after imprinting 17β-estradiol on TFMAA-co-TRIM copolymer with the red shift of theνO-H groups being apparent after precipitation polymerization for 16h while that forνC=O groups being observed after polymerization for 24h. A strong interaction between TFMAA and 17β-estradiol was confirmed by the high selectivity for 17β-estradiol, as indicted by the values of the separation factor of isomers of 17β-estradiol/17α-estradiol (2.28) and the imprinted factor (3.01). Particle diameter of TFMAA-co-TRIM polymer was between 300 nm and 1.5μm, which suited well for solid phase sorbent throughout at low column pressure. The recognition of imprinting TFMAA-co-TRIM polymer for sterol molecules was driven by enthalpy eluted with acetronitile, and low temperature was in favor of the separation of sterol structure analogues on imprinting column. TFMAA-co-TRIM polymer possessed of determinate anti-heat stability, with melting point beginning at 255.84℃, Tp=257.40℃, control TFMAA-co-TRIM polymer and imprinting TFMAA-co-TRIM polymer were respectively decompounded at 267.79℃and 343.11℃, and solid micro-extraction noddle prepared by the special polymerization also showed definite recognition for 17β-estradiol by GC/MS detecting at 270℃. By selection of various washing and elution solvents, elution reagents of close polymerization system were of more advantage in template molecules retention and recognition on molecularly imprinted solid phase extraction column. At a certain extent, progesterone, 17α-estradiol, 17β-estradiol and 4-androstene-3, 17-dione could be intercepted on the MISPE column. Especially, MISPE had high selectivity for progesterone, and imprinting TFMAA-co-TRIM polymer could achieve adsorption balance within 50 min by absorption kinetics test for 17β-estradiol. However, MISPE column showed better selectivity and enrichment property for 17β-estradiol than C18 and CSPE columns according to the data from HPLC and GC/MS analyses. Recovery of 17β-estradiol on MISPE column was up to 85.5% while when prime extracting solution of milk powder was sampled, the recovery of CSPE and C18 columns were 43.7% and 30.7%, respectively.

通过研究阐明:紫外聚合产物TFMAA-co-TRIM中的νO-H振动吸收峰在聚合16h后红移,νC=O振动吸收峰在聚合24h后红移;TFMAA-co-TRIM对雌二醇异构体的印迹因子达到了3.01,α为2.28,优于其它功能单体参与得到的聚合物识别特性;TFMAA-co-TRIM聚合物粒径介于300 nm至1.5μm之间,作为色谱固定相具有良好的通量和低的柱压;在乙腈流动相中,TFMAA-co-TRIM分子印迹固定相的分离过程主要被焓驱动,低温有利于分子印迹固定相分离甾醇结构类似物;TFMAA-co-TRIM分子印迹聚合物在255.84℃时开始熔融,Tp=257.40℃,聚合物CP的降解温度在267.79℃,MIP降解温度在343.11℃,制备的固相微萃取头初步经GC/MS 270℃的耐热性测定;不同的洗提溶剂筛选证明了选择接近聚合溶剂的洗脱体系更有利于MISPE发挥识别效应;分子印迹固相萃取柱对孕酮、17α-雌二醇、17β-雌二醇和雄烯二酮都具有不同程度的保留特性,可作为此类化合物的吸附材料,特别对孕酮强保留的富集特性,可作为孕酮的选择性识别吸附剂,其分子印迹聚合物对17β-雌二醇的吸附动力学测定显示在50 min内基本达到吸附平衡,具有作为传感器核心敏感材料的潜力;对比萃取奶粉中17β-雌二醇性能,MISPE柱比非分子印迹固相萃取柱和C18柱具有更高的保留,回收率依次为85.5%,43.7%和30.7%。

Using NaCl and Na2HPO4 in turn to elute bound alkaline phosphatase, a 65-fold purified enzymatic preparation was obtained in one step with a yield of 89%.

用NaCl和Na2HPO4进行阶段洗脱,可使酶的纯化倍数一步达到65倍,活力回收率达到89%。

Dark are the streets, gloom's creeping out of the walls Dirt comes alive and all the neon-lights call Demons and fools and a lady of black She's of the kind nighttime-insomniac She sees the pray and she's aware The times are hard but she don't care She's a vampire Desire darker than black She's a vampire Reach higher, no turning back Her wings are curtains of the night She knows no wrong or right Dead are the places where this goddess has been Cold is the skin that this creature has seen Her universe is an ocean of blood Her dining table the cradle of mud She sees the prey and she's aware The times are hard but she don't care She's a vampire Desire darker than black She's a vampire Reach higher, no turning back Her wings are curtains of the night She knows no wrong or right The night is blind, the mistress she is calling you To be by her side forevermore Follow her until her thirst is sated An immortal lie, heartblood Can't help yourself, she's got you paralyzed So would you kiss the sun goodbye?

黑暗的街道,昏暗的蔓延出墙泥土变得生机勃勃,所有的霓虹灯光致电魔,傻瓜和夫人黑色她的那种夜间insomniac 她认为,她祈祷的认识对正处于艰难时期,但她不在乎她是一个吸血鬼暗黑色的愿望比她是一个吸血鬼达到更高,没有回头路可走她的翅膀窗帘的夜晚她知道没有任何错误或正确的死者的地方这个女神已经被冷战是这种动物的皮肤出现她的宇宙是一个海洋的血液她餐桌泥的摇篮她认为猎物和她认识对正处于艰难时期,但她不在乎她是一个吸血鬼暗黑色的愿望比她是一个吸血鬼达到更高,没有回头路可走她的翅膀窗帘的夜晚她知道没有任何错误或正确的夜晚是盲目的,她是女主人打电话给你要在她身边永远跟着,直到她的渴望是饱食不朽的谎言, heartblood 不能帮助自己,她有你瘫痪因此,你会亲吻太阳再见?

Processes digitised waveforms at high PRF rates (up to 10 kHz) on up to 8 gates simultaneously.

数字化处理波形的脉冲刷新率较高(达到10 kHz),可同时达到8个门控。

The results showed that Chlorothalonil 75 % WP,Thiram 50 % WP,Prochloraz 25 % EC and Mancozeb 70 % WP were good fungicides against C. cassiicola,with control efficacy 92.71 %,89.16 %,87.31 % and 73.20 %,respectively.

试验结果表明:所选的4种药剂75%百菌清可湿性粉剂、50%福美双可湿性粉剂、25%咪鲜胺乳油和70%代森锰锌可湿性粉剂对黄瓜褐斑病的田间最高防效可分别达到92.71%、89.16%、87.31%和73.20%,是防治黄瓜褐斑病的优良杀菌剂。

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She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了,但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场,你等着挨绳子吧!

Several theories about reigniting and extinguishing of the arc have been refered.

本文综合考虑了几种电弧重燃和熄灭理论。