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Steelmaking Plant can be reduced to 20ppm by increasing argon flow of RH degasser and controlling vacuity According to the above results, the main efforts to develop IF steels have been made at No 3 Steelmaking Plant.

研究结果表明:钢水增碳主要在大包中发生,影响钢水增碳的主要因素是钢液与包壁接触面积与钢水体积之比,在高温下,耐火材料中CO的压力和钢水中Als的含量对钢水增碳也有一定的影响;钢水脱氧后将增硅,钢水的增硅量主要受大包渣的碱度、中包绝热板材料和中包保护渣碱度的影响;通过增大RH真空处理装置的氩气流量和控制真空度,能将三炼钢厂大包钢水的碳含量降到20ppm左右。

And to make the product be easy of purification, the excess of amine was reduced to 50% from 150%. Then the diiodoalkane reacted with dialkylmethylamine into diquaternary ammonium iodide, and obtained three diquaternary compounds whose spacer groups were -(CH2)6-, N,N"-dimethyl- N,N,N",N"-tetraoctyl-1,6-hexane diammonium diiodide, N,N"-dimethyl-N,N,N",N"-tetradecyl-1,6-hexane diammonium diiodide, N,N"-dimethyl-N,N,N",N-tetradodecyl -1,6-hexane diammonium diiodide.

对于更长间隔链的双子型季铵盐,一方面为了加快亲核取代反应速率,先将1,6-二氯己烷、3-氧杂-1,5-二氯戊烷转化成1,6-二碘己烷、3-氧杂-1,5-二碘戊烷,另一方面为了降低产物提纯的难度,将叔胺的过量由150%降到50%,使二碘代烷与双长烷基甲基叔胺在相同的温度下、反应相同的时间,经过相同的后处理,得到3个间隔链为-(CH2)6-的双子型季铵碘化物,(C8H17)2N+(CH3)(CH2)6 (CH3)N+(C8H17)2·2I-、(C10H21)2N+(CH3)(CH2)6(CH3)N+(C10H21)2·2I-和(C12H25)2N+(CH3)(CH2)6(CH3)N+(C12H25)2·2I-。

It was found that the thermodynamically unfavourable isomerization of quadracyclane to norbornadiene could be accomplished in the presence of toluene or durene as a co-sensitizer.

首次发现在甲苯、杜苯等芳烃共敏化下,可以使原来不能进行的、热力学不利的四环烷→降冰片二烯异构化得以进行,并根据CIDNP结果提出这是由于生成了敏化剂/底物/芳烃三元基激络合物使反应的势能面改变造成的并促进单线态的系间窜跃。

T he b iggest v alue o f a xial t ensile s tress i n c oncrete u nder t he a ction o f w ater p ressure a nd thermal load could be as high as 4.23MPa, which will lead the occurrence of circumferential cracks. So reinforcement along the axial direction must be laid.

在常规荷载和温降荷载共同作用下,斜直管段混凝土最大轴向拉应力可达4.23MPa,已经远远超过了C25混凝土的设计抗拉强度1.3MPa,在管道混凝土内可能出现环向裂缝,因此在进行管道轴向配筋时应采取一定工程措施。

The water content of the water content of the paper, directly influenced the business card printing and membership card to make the quality of the water content, right now, paper strength that is slowing down, the role of the epigene, the paper fiber will be pulled out, so that the plastic deformation increases brand drying rate affected; if the moisture content is too small, the paper will be issued with a crisp, easily damaged, generate static electricity.

纸张的含火量纸张的含火量的多多,间接感化着制卡和会员卡制息品的质量,含火量功多,纸张的不弱量会降矮,在边辛的功用下,纸张纤维会被不推出,使不不弹性变形加不弱,使痕迹的潮湿速量施到感化;如含火量功多,纸张会不收不韧,便当变不败毁坏,爆发静电等。

When the amount of hydrochloric acid added in hydrolysis process of aluminum ethoxide was relatively high, the formed AlCl〓 could enhance the self-pulverization of fibrillar γ-AlOOH powders during its dehydration process and lead to the formation of amorphous ultrafine alumina powders with the particle size of 3~5nm, which could melt and become glass like at 500℃, and then become spherical by crystallization.

当盐酸与乙醇铝的摩尔比从0.0增加到0.04时,粉末成球温度从1200℃降到500℃;在高酸量时形成的AlCl〓,能促进γ—AlOOH脱水时的自粉碎效应,生成无定形的超细Al〓O〓粉末,粒径为3~5nm,在500℃经熔化形成玻璃态,再晶化成球,而在其它情况下,粉末靠收缩经表面扩散方式成球。

Under the guidance of DPRIF integrating strategy, we set up an integreted SOFM-SVM model. Then we analyzed and optimized the model from the aspects of operating mechanism, data interface and function expandedness. The PCA method was introduced to reduce dimensionality and extract features, then to strengthen the clustering explanation; defined a CMI index, to ascertain the most effective or the best clustering number; A new Anti-NO algorithm was proposed to recognize and to filter the suspecious data in the sample; The medium result of SVM model was used to extract the borderline datas between two classified groups. This research compensated for the achievements of data recognition including pattern data, noises data and borderline data.

在DPRIF整合策略指导下构建了一个整合的SOFM-SVM模型,对该模型从运作机制、数据接口、功能扩展几个方面进行分析和改进:引入PCA方法进行数据降维和特征提取,用以加强聚类解释;结合统计聚类中的聚类误差概念定义一个聚类数有效性指标,利用SOFM算法中间结果进行指标求解,以筛选出有效或最佳聚类数;提出一种新的噪声识别算法用于对样本中的异常数据进行甄别和过滤;利用SVM模型的中间结果提取分类边界数据;进一步充实了包括模式类、噪声集和边界在内的模式识别成果。

The new phone comes after Japan's fertil IT y rate -- the average number of children a woman bears in her lifetime -- fell to an all-time low of 1.25 in 2005, sparking worries about a shrinking population.

日本女性的生育率(指一名妇女在其一生中所生育孩子的数量)在2005年时降至1.25,创下了有统计数字以来的最低点,并进一步引发了日本社会对本国人口数量日益萎缩的巨大担忧,而此款新型手机也正是在这一特定背景下应运而生的。

Computed tomography of the abdomen and lower gastrointestinal study with barium enema were arranged and showed fistulous tract between the descending colon near the splenic flexure and the left perirenal space.

腹部电脑断层以及下胃肠道钡剂摄影被安排,显示靠近脾曲部的降结肠与和左侧肾旁空间之间有瘻管形成。

Totally 60 semi-circular bending specimens cored from superpave gyratory compactor with three groups of notch depths are tested at the temperature of-10 and 20℃ The experimental results reveal good repeatability in EAM characterization. The tensile strength ratio of SCB to the indirect tensile test is at a range of 1.4 to 1.7, and the ultimate strength of EAM is exponentially dependent on the notch depths. At the test temperatures, the critical J-integral value of EAM is much higher than that of hot mix asphalt with thermoplastic asphalt binder. The response mode of EAM changes from ductile mode to brittle mode and the fracture energy increases 30% when temperature decreases from 20 to-10℃, while its critical J-integral value decreases only 15%.

结果表明,环氧沥青混合料的半圆弯曲试验结果复现性好;由非切口试件的半圆弯曲试验与标准间接拉伸试验所测得的环氧沥青混合料的抗拉强度,其比值在1.4~1.7之间,且SCB抗拉强度与切缝深度指数相关;在20℃与-10℃试验条件下,环氧沥青混合料具有比热塑性HMA高得多的临界J-积只分值;当温度由20℃降至-10℃时,环氧沥青混合料的响应模式由延性变为脆性,断裂能增加30%,而临界J-积分值下降15%。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。