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In our research on study chemical reaction of active methylene compounds and brom-acetophenone. Because of brom-acetophenone is compound that contain carbonyl and halogen ,which will take place electrophilic substitution and nucleophilic addition. When active methylene compounds are ethyl acetoacetate and β-diketone, controlling reaction condition, we have found that mono-substitution's production and di-substitution's. production is isolated; active methylene compounds are acetoacetanilide and acetoacetanilide derivate, pyrrolidin-2-one derivants were obtained by substitution and close-ring reaction .but there is no report about it.

本文是让活泼亚甲基类化合物与溴代苯乙酮发生化学反应,由于溴代苯乙酮是含有羰基的卤代烃结构,它可以发生亲电取代和亲核加成反应,当活泼亚甲基类化合物为乙酰乙酸乙酯和β-二酮时,控制反应条件可以发生单取代和双取代两种产物;当活泼亚甲基类化合物为乙酰乙酰芳胺类化合物来反应时,溴代苯乙酮中的羰基与氨基会发生分子内的关环反应生成吡咯烷-2-酮衍生物,这在以前的研究中是没有发现的。

Nd and Y showed more evident effects than Gd and La due to lower temperature of eutectic reaction with aluminum. In order to investigate mechanism of the formation of the intercellular dispersoid which is being in debate and possibility of suppressing the dispersoid, a nucleation kinetic model which including unsteady nucleation and effect of alloy element was established.

Al-Fe-Mo-Si-Zr-Ti合金粉末具有四种凝固组织,初生Al〓〓,α-Al与Al〓共晶,胞晶及显微胞晶,合金元素Mo的加入,显著提高合金粉末凝固前的过冷度,使10~40μm粉末的凝固机制发生了变化,由导热控制型转变成溶质扩散控制型,从而基本上消除了该尺寸范围内粉末凝固组织中共晶成分和初生相,但对大于40μm的粉末,因共晶区富Zr核心的优先形成而使Mo的作用效果不明显。

City of God is the most dangerous slums of Rio de Janeiro, where the children live in a little manual gun, any access to this area of the truck had been robbed escape the fate, which has become a violent drug-fast broadcast movies heaven, even the police are not willing to be easily involved.

上帝之城是里约热内卢最危险的贫民窟,住在这里的孩子们几乎人手一支枪,任何进入此区的货车都难逃被劫的命运,这里已成了暴力毒品快播电影的天堂,连警察都不愿意轻易涉足。

Material and MethodsRA Rabbit Model group: 15 early RA rabbits of the same weight and variety Control group:10 normal rabbits of the same weight and varietyMethods of making RA rabbit model:elect 15 normal rabbits of the same weight and variety, dissolve Ovalbumin in 0.9% sodium chloride solution, to make the solution of 20mg/ml concengtration, blend the same quantity of complete Freund′s Adjuvant equably ,inject the mixed solution into endermic tissue of the rabbit′s scapular section, making the rabbits allergic, inject 1 ml of the mixed solution to one rabbit every time, inject 1 ml of the mixed solution in 5 different places of the rabbit′s scapular section, inject the rabbit one time every week,inject 3 weeks continuously,it turned out to be that the rabbits will be allergic, inject Ovalbumin blent with the 0.9% sodium chloride solution into the knee joint cavity of the rabbits in the fourth week, 5 mg Ovalbumin every knee joint cavity,two knees of every rabbit of the 15 rabbits are both injected,the arthrosis diameter and the exterior temperature of the knees will be added obviously in 24 hours,and they will drop gradually,at the time of the 14th or 21th day, the arthrosis diameter and the exterior temperature of the knees will get to the balance time,the incidence rate of RA is 100%.after the RA model succeeds,it is the early time of RA from the first week to the fourth week,after the fourth week,it is the late time of RA, the cartilage of the femoral condyle and the subchondral bone cortices will be changed unrecoverily.

资料与方法RA模型组:早期RA家兔模型15只,品种及体重接近。对照组:正常家兔10只,品种及体重接近。RA家兔模型制作方法:选取15只成年家兔,体重、品种接近,将卵蛋白溶解于生理盐水,配成浓度为20mg/ml的溶液,与等量完全弗氏佐剂混匀,注入家兔肩胛区皮下致敏,每只家兔每次注射1ml,于肩胛区5个不同区域注射,每周一次,连续注射3周而致敏,第4周向膝关节腔注射卵蛋白生理盐水溶液,每只关节腔注射5mg卵蛋白,15只家兔膝关节全部注射,24h内此关节直径和表面温度大幅度上升,以后缓慢下降,至14~21d达到平台期,发病率达100%。造模成功后第1~4周为早期改变,第4周以后出现不可逆的关节软骨及骨破坏。采用高频超声对RA模型组与对照组的膝关节髌上囊液体厚度、滑膜及股骨髁软骨厚度及软骨下骨皮质的回声情况进行对比观察。结果RA组模型组膝关节髌上囊积液及滑膜的厚度明显厚于对照组,其股骨髁软骨的厚度与对照组相比无明显差异,其软骨下骨皮质与对照组相比无明显改变。

As a result, they finally elucidated Chuci, poems with strong local color, to something within the Confusion system, and reckoned that each of them was for expostulation.

汉代学者在《诗经》学"美刺讽谕说"的影响下,对屈原作品和事迹的理解出现了偏差,最终把具有浓厚地方特色的楚辞,也阐释成了儒学体系内的东西,认为它们篇篇都是用来讽谏的了。

In my study, we use a 4F acoustic lens which f-number is 1.3 to set up a photoacoustic imaging system. With same axial and lateral magnification, 3D photoacoustic imaging system with 4F acoustic lens can detect photoacoustic signal distribution on object plane in real-time, and get the different axial distance signal to show the 3D photoacoustic image by different signal receiving time.

本研究采用相对孔径为1.3的4F声透镜,设计三维光声影像系统,利用4F声透镜景深范围内之轴向与横向放大倍率相等,即时性的重现物平面所发出的同调性光声讯号分布,并利用不同的接收时间来呈现不同深度距离的讯号成像,取得物平面上受测物的三维光声影像。

Suitable style: over the shoulder length hair, a little bit, not too long hair as a whole into the arc, North Korea Neice slightly bent; even if the hair is not very neat endings, nor have no sense of modesty; red Although they are warm, Department of But the deep red wine was able to give the feeling of cold, this mysterious hair-style, if there is a dark-colored clothing with the words, it is the standard cool crush - Scorpio!

适合的样式:头发长度过肩一点点,不要太长了,头发整体成弧型,朝内测稍微弯曲;就算头发末梢不是非常整齐,也不会有不端庄的感觉;红色虽然属于暖色系,但是深沉的葡萄红色却能给人冷酷的感觉,这种充满神秘色彩的发式,若是有深色服装的配合的话,那就是标准的酷美眉--天蝎座!

The many dark clusters of cells in the hepatic parenchyma are islands of extramedullary hematopoiesis typical for fetal liver.

肝实质内的许多色暗的成串的细胞是髓质外的岛状肝细胞增生。这是胎儿肝脏的典型表现。

After convolutional encoding , the data is reordered by the interleaver. At the receiver , the data pass through deinterleaver for the purpose of dividing possible consecutive error bursts into inconsecutive code , so it can be corrected by convolutional decoding. Matrix interleaver with CPLD is designed , because it is convenient to program. Considering various matrix interleaver , an all - purpose matrix interleaver is designed. You can ap2 ply it to your own project only altering initial parameters.

交织编码在3G系统中已经大量使用,数据通过卷积编码后进行分组交织,在接收端完成反交织,将连续误码分散成非连续误码,从而使得误码在纠错允许的范围内得到纠正; CPLD 具有方便的在线编程功能,可以用来实现交织编码;考虑到矩阵交织器的多样性而设计的通用矩阵交织器,只须通过修改一些参数值即可实现不同的交织器,大大节省了设计时间。

Petals golden yellow, not tinged red, oblong-obovate to broadly obovate, 1.2-1.8 × 1-1.4 cm, 1.5-2 × as long as sepals; margin entire or slightly eroded-denticulate with row of intramarginal gland-dots; apiculus rounded to obsolete.

花瓣金黄色,不微染红色,对宽倒卵形长圆状倒卵形, 1.2-1.8 * 1-1.4 厘米,1.5-2 *等长于萼片;边缘全缘或稍具细牙齿腐蚀的的具成排的近边缘内的腺体小圆点;细尖的圆形到废退。

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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。