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This study uses the soil parameter reduction coefficients to model the seismic pile responses affected by liquefied soils. One dimensional wave equation analyses were conducted for the solutions. Based on the bore-hole data and nearby seismic record, the soil parameter reduction coefficients of liquefied layers can be obtained through a pre-analysis for liquefaction potential of the site. The reduction coefficients were used to reduce the soil modulus for liquefied soils, and the lumped mass analysis is performed to obtain the free-field response of the site. The ground deformations are superimposed onto the pile elements for discrete wave equation analysis, and the non-linear pile responses can be simulated through the modified Bouc-Wen model. Thus the deformations and failure mechanism of the pile are able to investigate.
中文摘要本研究之土质参数折减系数模式,系以一维波动方程模拟地盘液化状态下之桩基础动力反应,依据现场土层钻探资料与邻近测站之地震纪录,由土壤液化潜能评估法配合日本相关规范求得液化土层之土质参数折减系数,以此系数对土壤强度模数进行折减,并使用集中质块法求取自由场之地盘液化反应,再以此为前置解作用於桩基础之波动方程求解,桩身刚度以简化之Bouc-Wen模式模拟其非线性行为,以了解液化地盘内基桩之变形行为与破坏机制。
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The person that fall behind and Kang Cheng start the mass rally that wants to be held this jointly, change to stand former days the habit of galley proof of long old can small standard, to specialization, dimensions changes trend move, and this congress puts forward: Go fighting with belief, also be the times that grows a depression in the way station in 8 years, meet, sturdy encouragement, also be pair of prospective direction exploration likewise begin.
落伍者和康盛创想这次联合举办的大会,一改往日站长大会小模小样的习惯,向专业化,规模化趋势转移,而此次大会提出的:"用信念去战斗",也是在08年中小站长圈萧条的时代,一次聚会,一次坚定的鼓励,同样也是对未来方向探索的开始。
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The main achievements of the project are as follows: 1 the hypothesis that a decrease in seed mass causes an increase in mean dispersal distance has been tested based on the experiments of weed dispersal by wind. The experimental results partly support the hypothesis. The results will help farmers to make an optimal strategy of weed control; 2 a statistic method for inferring probabilistic distribution function of a random variable has been developed, by which probabilistic distribution functions of weed species dispersal have been determined; 3 the reproduction structure of Bromus sterilis has been studied; 4 a more complex CA model with 25 neighborhood cells were built, which can simulate spread of a weed population. This work promotes developments in both theory and application of CA models; 5 the "mean law" in weed control has been proposed. Accordingly, the algorism of patch spring may be calibrated; 6 the "patch" and "true patch" have been mathematically defined so that herbicide can be efficiently applied; 7 simulation validates that initial configurations of weed will affect dispersal of its population and strategies of controlling it, or its distribution patterns affect its dispersal progresses.
主要完成的工作和取得的成果有:1)用实验证实了重量较轻的杂草种子并不一定飞得比较重的远,其结果有助于农民制订杂草的优化控制策略;2)发展了一种推断随机变量分布函数的统计方法并用它来获得了几个杂草种的扩散分布函数;3)对杂草Bromus sterilis的繁殖结构进行了研究;4)建立了一个具有25邻的较复杂的能模拟杂草扩散的CA模型,并在理论和应用方面促进了CA模型的发展;5)在杂草控制方面提出了&平均法则&,据此可对按块施药方法进行校正;6)精确地定义了&块&和&真块&以便在杂草控制中能更有效地使用除草剂;7)模拟证实杂草种群的初始配置影响其扩散和控制策略,或者格局影响过程。
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The free radical scavenging properties of six Aloe species are to be investigated in some modified chemical system. The antioxidant was purified by silica column and thin layer chromatography and analyzed by HPLC. A fraction was purified from A. brevifolia Mill showed the most effective scavenging activities on 〓 and ·OH (66. 01% and 38. 98% respectively). With the analysis of IR spectrum, UV spectrum and mass spectrum, the structure of FA was identifed as 8-C-D-glucopyranosyl-2- [2-hydroxy] propyl-5-methyl-7-hydroxychromone. Its scavenging activity on free radicals is higher than that of aloe-emodin. Its antioxidant activity may be due to the phenoxyl on glucosyl chromone which can be react with free radicals and form relatively stable free radicals.
本研究利用分别产生超氧阴离子自由基和羟自由基的化学模型体系研究比较了不同品种芦荟提取物的清除活性氧自由基的抗氧化作用,进一步利用硅胶柱结合薄层层析法和反相高压液相色谱法,从短叶芦荟叶子中首次分离了具有较强自由基清除能力(超氧阴离子自由基和羟自由基清除率分别为66.01%和38.98%)的成分FA,利用红外光谱、紫外光谱和质谱等仪器分析结果推断出该活性成分的分子结构为8-C-吡喃葡萄糖-2-[2-羟基]-丙基-5-甲基-7-羟基对氧萘酮,它的自由基清除能力高于芦荟大黄素,是一种天然抗氧化剂。
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In conclusion, we should keep in mind the possibility of epiglottic hemangioma when confronted with a common epiglottic mass. A hasty intubation, biopsy, and excision can be dangerous. To arrive at an accurate diagnosis and the appropriate treatment, detailed pre-operative evaluations, including magnetic resonance images and angiography, may be needed for differential diagnosis in selected cases.
因此,当我们发现会厌部位的肿块时,纵然它有一般的外表,还是要想到血管瘤的可能性,贸然的麻醉插管、切片检查及手术切除颇具风险,唯有术前详尽的检查,包括核磁共振和血管造影,方可给予正确的评估及选择适切的治疗方式。
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On the basis of our series and the findings of Yapar et al, the sonographic features of pelvic TB may be categorized as wet type or dry type as follows. The wet type, found in 12 (75%) of 16 patients, is characterized by incompletely septated ascites, particulate ascites, loculated fluid (although clear ascites can also be commonly associated with tuberculous peritonitis ), a thickened peritoneum or omentum, and an adnexal mass, mimicking ovarian cancer; the dry type, found in a small number of cases, is characterized primarily by adnexal masses, adhesions, and loculated fluid, mimicking tubo-ovarian abscesses or complexes.
根据咱们和Yapar等人的发明,骨盆内部空腔TB的超声特征可以分为湿型或干型。16例病人中发明12例湿型TB,其特点是水臌内存在不完全的分隔、光点和多房性积液(尽管清亮的水臌通常也能归并结石性腹膜炎),和腹膜或网膜增厚和容易误诊成卵巢癌的附件团块;少量的病例呈干型TB,其特点主要是附件团块、粘连和多房性积液,象是输卵管-卵巢脓肿或复合体。
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On the basis of our series and the findings of Yapar et al, the sonographic features of pelvic TB may be categorized as wet type or dry type as follows. The wet type, found in 12 (75%) of 16 patients, is characterized by incompletely septated ascites, particulate ascites, loculated fluid (although clear ascites can also be commonly associated with tuberculous peritonitis ), a thickened peritoneum or omentum, and an adnexal mass, mimicking ovarian cancer; the dry type, found in a small number of cases, is characterized primarily by adnexal masses, adhesions, and loculated fluid, mimicking tubo-ovarian abscesses or complexes.
根据我们和Yapar等人的发现,盆腔TB的超声特征可以分为湿型或干型。16例病人中发现12例湿型TB,其特点是腹水内存在不完全的分隔、光点和多房性积液(尽管清亮的腹水通常也能合并结核性腹膜炎),以及腹膜或网膜增厚和容易误诊成卵巢癌的附件团块;少量的病例呈干型TB,其特点主要是附件团块、粘连和多房性积液,象是输卵管-卵巢脓肿或复合体。
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On the basis of our series and the findings of Yapar et al, the sonographic features of pelic TB may be categorized as wet type or dry type as follows. The wet type, found in 12 (75%) of 16 patients, is characterized by incompletely septated ascites, particulate ascites, loculated fluid (although clear ascites can also be commonly associated with tuberculous peritonitis ), a thickened peritoneum or omentum, and an adnexal mass, mimicking oarian cancer; the dry type, found in a small number of cases, is characterized primarily by adnexal masses, adhesions, and loculated fluid, mimicking tubo-oarian abscesses or complexes.
根据我们和Yapar等人的发现,盆腔TB的超声特征可以分为湿型或干型。16例病人中发现12例湿型TB,其特点是腹水内存在不完全的分隔、光点和多房性积液(尽管清亮的腹水通常也能合并结核性腹膜炎),以及腹膜或网膜增厚和容易误诊成卵巢癌的附件团块;少量的病例呈干型TB,其特点主要是附件团块、粘连和多房性积液,象是输卵管-卵巢脓肿或复合体。
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The results show that in the applied load range of 10250 N, the mass loss rate of coated AZ91D alloy can be identified to three stages, which are related with whether the coating is worn out. Abrasion is the main mechanism for the coated alloy. The friction coefficient of the coated alloy during sliding wear appears oscillation before it reaches a constant value, which is close to the μ value of the matrix alloy. The mass loss rate of coated alloy increases slightly with increasing applied load when the applied load is more than 150 N because of high plastic deformation accommodation on the matrix alloy surface.
结果表明:根据载荷大小,涂层处理后AZ91D镁合金的磨损行为明显分为3个阶段,这些阶段同陶瓷层是否磨穿密切相关;微弧氧化涂层AZ91D镁合金的磨损机理主要是磨粒磨损;受表面状况的影响,陶瓷涂层的摩擦因数在 0.20~0.45 间波动;在较高载荷下,涂层被磨穿后,涂层的摩擦因数趋于基体合金的摩擦因数,涂层合金的表面变形能力提高,该阶段质量磨损速率随载荷增加,趋势变得缓慢。
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For instance, it is important to consider how one area or one mass organization should support the struggle waged in another area or by another mass organization, and how meetings of the masses and of their cadres and conferences of representatives--all of a specified size--should be held, etc.
例如,应该讲究这一区域对另一区域斗争的声援,这一群众团体对另一群众团体斗争的声援,召开必需的一定范围的群众会、群众干部会、代表大会等等,都是很重要的。
- 推荐网络例句
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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.
每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。
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Maybe they'll disappear into a pothole.
也许他们将在壶穴里消失
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But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.
但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。