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Effects of dry temperature and dry time on properties of heat cured sand and the relationship with binder composition are as follows:sands bonded by binders that are not modified have high strength when dry temperature is high and dry time is long,but their anti-wettability power is poor . Sands bonded by binders that are modified by B but not modified by M can be dried quickly and sand strength is high but anti-wettability power is also poor. Sands bonded by binders that are modified by M but not modified by B can also be dried quickly to obtain maximum strength,then the strength becomes lower when they are dried continually for more time. and sand strength is high but anti-wettability power is also poor. Sands bonded by binders that are modified by M as well as by B at the same time can be dried quickly to obtain maximum strength at low temperature and short time. But the anti-wettability of sand mold is best when they are dried at high temperature and long time.
烘干温度和烘干时间对热硬砂性能的影响及其与粘结剂改性的关系是:未经改性剂B和改性剂M改性的粘结剂砂,脱水速度较慢,烘干温度越高,时间越长,则硬化强度也越高,但未经改性的粘结剂热硬砂的抗吸湿性较差;经改性剂B而不经改性剂M改性的粘结剂热硬砂,烘干硬化速度较快,强度也高,但在高湿度下的抗吸湿性不好;经改性剂M改性而不经改性剂B改性的粘结剂热硬砂,烘干时强度先随烘干时间升高至最大值后,继续烘干时强度又出现下降;经改性剂B和经改性剂M共同改性的粘结剂热硬砂能在短时间和较低的烘干温度下就可烘干到最高强度,即烘干脱水的速度较快,但试样的抗吸湿性差,若在更高温度和更长时间下烘干,试样的抗吸湿性得到改善,综合考虑烘干强度和抗吸湿性要求,对于φ30×30mm试样,理想的烘干温度是200℃,烘干时间20分钟。
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The mechanical behavior of Shape Memory Alloys material is tested, and the constitutive model of the SMA is established. A kind of SMA combined rubber isolator is developed, and the isolation effect of the SMA combined rubber isolator for long-span bridge and tall building structures is numerically simulated, from which the adaptive isolation performance and the self-restoring capacity of the SMA combined rubber isolator are verified. A kind of SMA damper is developed, the mechanical behavior of the SMA damper is tested, and the model of restoring force of the SMA damper is established. The theory and method of adaptive control based on the SMA damper for the long-span bridge are built, and the effectiveness and reliability of the adaptive control for the long-span bridge using the SMA damper are verified through numerical simulation and model test. The MRF-04K type magnetorheological damper is developed, the mechanical behavior of the MR damper is tested, and the model of restoring force of the MR damper is established. The theory and method of adaptive control based on the MR damper for the long-span bridge and tall building structures are built, and the effectiveness and reliability of the adaptive control for the long-span bridge and tall building structures using the MR damper are verified through numerical simulation and model test. In addition, the theory and method of sub-structural damage identification for long-span bridge are derived, the influence of soil-structure dynamic interaction on the seismic isolation and control effects with different isolation and control measures and the damage responses and the sliding base-isolation of large structures under the excitation of underground explosion are investigated.
试验研究了形状记忆合金材料的力学性能,建立了SMA材料的本构模型;研制了一种SMA复合橡胶隔震支座,数值仿真分析了应用SMA复合橡胶支座的大跨桥梁和高层建筑结构的隔震效果,从而验证了SMA复合橡胶支座的自适应隔震性能及其震后自恢复能力;研制了一种SMA阻尼器,试验研究了SMA阻尼器的力学性能,建立了SMA阻尼器的恢复力模型,建立了基于SMA阻尼器的大跨桥梁结构自适应控制理论与方法,通过数值仿真与模型试验验证了大跨桥梁结构SMA阻尼器自适应控制的有效性与可靠性;研制了一种MRF-04K型磁流变阻尼器,试验研究了MR阻尼器的力学性能,建立了MR阻尼器的恢复力模型,建立了基于MR阻尼器的大跨桥梁和高层建筑结构的自适应控制理论与方法,通过数值仿真和模型试验验证了大跨桥梁和高层建筑结构MR阻尼器自适应控制的有效性与可靠性;还建立了大跨桥梁结构的子结构损伤识别的理论与方法,研究了土-结构动力相互作用对不同隔震和控制措施的减震控制效果的影响以及地下爆炸波作用下各类大型结构的灾害响应与滑移隔震。
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In this dissertation, many works have been done on the basis of the summarization of the merits of all kinds of meshless methods after a large number of relevant references are read and studied. The basic ideas, principles of meshless methods and their development in the recent years are introduced synoptically. Applications of Element-free Galerkin method in elastic foundation plate are studied deeply and some useful conclusions are obtained as follows:(1) Comparisons between numerical solutions and analytical solutions for several different styles of weight functions, including Gaussian weight function, spline weight function and singular weight function etc, are performed. The results show that Gaussian weight function is the best one.(2) Ranges of relevant parameters for Gaussian weight function are given.(3) Influences of nodal distribution schemes and the number of Gaussian integrated dots on computational results are discussed.
在本文中,作者在认真阅读和研究所搜集到的大量参考文献、综合各种无网格法优点的基础上,首先,对无网格法的基本思想、基本原理、发展现状作了概括性的介绍;其次,对无单元Galerkin法在弹性地基板计算中的应用进行了较为深入的探讨:(1)分别对高斯型、样条型、奇异型等不同形式的权函数进行比较分析,数值计算结果与级数解析解的比较表明,高斯型权函数效果较好:(2)对高斯型权函数进行参数研究,得到地基板计算中相关参数的选取范围;(3)对不同节点分布方案和不同高斯积分对计算结果的影响等作了有益的讨论。
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Money is dignity, is to maintain national dignity shall be inviolable character of the soft weapons; money is life, it is a closed door of death the most effective operation; money are comfortable home are the main founder of the Happy; money status, are invisible carrying you into the upper reaches of the轿夫; money to eat and drink are Laksa, stalls are to solve this problem the experts; money is happiness, is to remove the formalin pain; money is speed, the faster you are called mind is no longer a dream; money is free, you are able to relax a good candidate; money pass through the door all the common language; money is gold, it could put gold or gold with the same things to quantify; money is right, right money, money can help you find;七情六欲money, money can help you to meet.
钱是尊严,是保持人格国格不受侵犯的软武器;钱是生命,它是关上死亡之门的最行之有效的手术;钱是安乐窝,是幸福的主要缔造者;钱是地位,是看不见的抬着你进入上流的轿夫;钱是吃喝拉撒,是解决这摊子问题的专家;钱是快乐,是清除痛苦的福尔马林;钱是速度,是叫你走得快的想法不再是梦;钱是自由,是能为你松绑的好人选;钱是通行证,是通过一切门的公共语言;钱是金子,它可以把金子或者跟金子一样的东西都进行量化;钱是权利,有钱就有权,钱可以帮你找;钱是七情六欲,钱可以帮你满足。
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The main study areas are as follows: 1 The landscape classification system of the urban-rural ecotone is set up based on the studying on land-use type of urban area and rural area, and then it is used to establish a regional landscape data warehouse for deposition, modification and management; 2 A group of landscape structure and pattern indices and patch area spectrum analysis methods are used to describe the structural and heterogeneous characters of all the landscape elements from different aspects; 3 The temporal and spatial difference of the landscape pattern of main road belts of the research area are also analyzed with the same method. Their basic process and regularity of urban axial expanding of the southwestward of Shanghai City are initially knewn well; 4 According to the traits of the ecotone, the principles and basis of vegetation classification, the ecotone vegetation classification system is set up, its species constitute, community patch characters, the relationship between vegetation types and landscape categories are analyzed, meanwhile, the vegetation sample maps are made; 5 Based on above studies, some landscape ecological stratedies within the research area were discussed. The following are the results of this study
城乡交错带地区的景观分类,在对城市地区和农村地区的土地利用类型研究的基础上建立了城乡交错带的分类体系,并在此基础上用ARC\INFO软件分时段、分区、分要素建立研究区的景观图形数据库,对数据进行存储、修改和管理;2)利用多种景观结构、格局指数和斑块面积谱分析方法,从不同的侧面对各种景观组分的结构以及区域的景观格局特征进行了分析,并对其成因进行了探讨;3)利用相同的分析方法,分析了城乡交错带中的城市干道两侧的景观格局特征的空间和时间分异情况,初步掌握上海城市西南轴向扩张的基本过程和规律;4)对城乡交错带中非独立的景观要素-植被,研究其遥感图象信息的基本特征,建立适合区域特点的植被分类体系,并在样区中建立了植被图形数据库和计算机制图,分析了植被景观种类组成、斑块等级等特征以及与不同景观的相互关系;5)在上述研究的基础上,对研究区内的景观生态对策进行了研究。
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The basic theories of mathematical morphology for binary image are stated, and the most simple structure elements of morphologic transformation for binary images are proposed and proved. The geodetic morphologic transformation models are also developed. For the purpose of improving the speed of transformation in computer, the"set symmetric difference"is introduced to adapt each model. Some new morphologic filtering models and quantitative evaluating model of filtering effects in image processing are proposed, under the applied condition. The morphologic thinning methods are studied, and two new morphologic thinning models are developed. On the basis of analyzing the characteristics of mining maps, the image vectorizing tactics and a series of algorithms are proposed, including dynamic adaptive image thresholding using two thresholds, graphic and text separation, noise removal, and multi elements extracting models with mathematical morphology. Accuracy preserving compressed vectorizing model for image vectorization is put forward to generate vector data in multi layer.
论文对二值图象形态学的基础理论进行了较系统的阐述,提出并证明了二值图象处理中形态变换的最简单结构元素,并发展了测地形态变换模型;为了提高形态变换的计算机实现速度,引入了集合论中"对称差"的概念对各形态变换模型进行了改化;针对数学形态学在图象处理中的实际应用,提出了新的形态滤波模型及滤波效果的度量评价模型;研究了形态细化方法,提出了快速形态细化和保形快速形态细化算法;在研究矿图基本特征基础上,提出了人机协同矿图扫描图象矢量化处理策略及一系列扫描图象处理算法模型,包括双阈值动态自适应图象二值化、图文分离、噪声去除、图面多种要素提取形态变换模型等;在图象栅格—矢量转换中,提出了保精度压缩矢量化模型,以生成分层要素矢量数据。
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After analyzing the merit and lack of 9I model, the main idea is proposed: to distill some basic topological relations from 9I model, of which the composite topological relations of complex objects are made up. In detail, the composite topological relationships between region and region, line and line, line and region are particularly discussed;(2)Analyze the characteristics and inner relations of cadastral features. According to the expressional model of complex topological relations, the author discovers the possible topological relations between parcels, parcel lines and parcel points. In addition, sum up the general topological relationship rules of cadastral data.(3) Then the topological relations model is extended to the spatio-temporal data. Time in cadastral database and change semantic are discussed. It's redefined that spatio-temporal topological relations is composed of time, location, status and event relation. Spatio-temporal topological relationships can be represented by extended 4I model. Taking cadastral parcels as example, there are different possible spatio-temporal topological relationships between parcels when they are extended, shrunken, split, merged or others. Thus, some deductions are drawn that, for example, if parcels have be coexisting for some time they are impossible to be overlapped. Furthermore, the parents of parcels alternated and their possible change types can be detected by their spatio-temporal topological relationships.(4) Before carrying out the experiment, the calculation method must be designed.
具体研究工作及成果如下:(1)根据点集拓扑理论中与拓扑空间相关的概念,本文对空间的点、线、面进行了重新定义,以区分对象的复杂性;分析了9I模型在表示简单对象方面的优点,以及在表达复杂对象上的不足,阐述了本文的研究思路和解决方案,并以复杂的面面、线线和线面为例详细探讨了复合拓扑关系的表达方法;(2)分析了地籍权属数据和地类数据的内涵、特点和要素之间的联系,根据复杂对象的拓扑关系表达模型,本文讨论了宗地、界址线、界址点之间,图斑、线状地物、零星地类之间可能存在的拓扑关系和形式化表达方法,归纳总结了地籍对象的拓扑关系满足的约束性规则;(3)将拓扑关系的研究延伸到时空领域,从地籍对象的时态性出发,本文阐述了地籍数据中时间的含义和变化语义描述的需要;从时间、位置、状态、事件等之间的拓扑关系方面,重新系统性地进行了时空拓扑关系的定义;研究了一维时间和二维空间的集成表达方式,以宗地、界址线为例,分析了变更前后不同时间区间里可能的拓扑关系,探讨了时空拓扑关系对时空变化操作类型和变化语义的推理方法和意义;(4)为实现空间拓扑关系的查询分析等应用,本文研究了空间拓扑关系的计算方法。
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It's five days, you came a long long way but I'm still sad, cause you never show me your face you tell me you have whelk, but I don't care about this don't you miss me honey, my little princess where you are packing away the flower in the page where you are listenning to the music by the Oasis where you are sliding away the birthday which I waited I have to look for a grave without your love and kiss except your family, am I the first you wanna see don't lie to me, why you are not in a sweat I bought a finger ring but I don't know how to give if you don't like it, you can throw me away where you are walking along the road with me again where you are sitting at the plaza with me in the holiday where you are spending all your times in my Christmas evening please don't leave me in the rain oh I need your love and kiss
它是5天,你就很长很长的路但我还是悲伤,因为你从未告诉我你的脸你告诉我,你有青春痘,但我不在乎这个难道你想念我,亲爱的,我的小公主你在哪里包装的花朵在页面你在哪里听音乐的绿洲吗你的生日,我滑等待我必须找一个坟墓失去你的爱和吻除了你的家人,是我第一个你想看不要对我撒谎,你为什么不流汗我买了一个戒指,但我不知道怎么给如果你不喜欢它,你可以把我赶出去你走在路上跟我说一遍好吗你在哪里,坐在广场同我在度假吗你把所有的时间在我的圣诞晚会吗请不要将我置身于雨啊,我需要你的爱和吻
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He deals the cards as a meditationAnd those he plays never suspectHe doesn't play for the money he winsHe doesn't play for the respectHe deals the cards to find the answerThe sacred geometry of chanceThe hidden law of probable outcomeThe numbers lead a danceI know that the spades are the swords of a soldierI know that the clubs are weapons of warI know that diamonds mean money for this artBut that's not the shape of my heartHe may play the jack of diamondsHe may lay the queen of spadesHe may conceal a king in his handWhile the memory of it fadesI know that the spades are the swords of a soldierI know that the clubs are weapons of warI know that diamonds mean money for this artBut that's not the shape of my heartThat's not the shape, the shape of my heartAnd if I told you that I loved youYou'd maybe think there's something wrongI'm not a man of too many facesThe mask I wear is oneWell, Those who speak know nothingAnd find out to their costLike those who curse their luck in too many placesAnd those who fear are lostI know that the spades are the swords of a soldierI know that the clubs are weapons of warI know that diamonds mean money for this artBut that's not the shape of my heartThat's not the shape, the shape of my heartThat's not the shape, the shape of my heart
他出牌前沉思冥想对出的每一张牌都很有把握他不是为了赢钱而玩牌也不是为了获得尊重他出牌是为了找寻答案找寻幸运的神圣机率在胜利后面隐藏着一种规则那些数字在领舞我知道黑桃是士兵的宝剑我知道草花是战争的武器我知道在这种游戏里方块就是钱但那不是我心的形状他可以出方块J他可以出黑桃Q他可以使小花招藏起K接着真的忘了自己有张K我知道黑桃是士兵的宝剑我知道草花是战争的武器我知道在这种游戏里方块就是钱但那不是我心的形状那不是我心的形状如果我告诉你我爱你你可能会觉得不妥我不是多面派我只有一张面具好吧,那些发言的人其实什么也不知道他们最终会付出代价就像有些人到处说自己不幸还有那些退缩的人,他们都已迷失我知道黑桃是士兵的宝剑我知道草花是战争的武器我知道在这种游戏里方块就是钱但那不是我心的形状
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Salix matsudana, Ulmus pumila, Quermus mongolica, Populus alba×P.beroliensis and Betula platyphlla are frontal 5 tree species with weight value 90.37, 90.12, 88.12, 87.55 and 86.2 respectively, were used for farmland protection forest; Acer negundo, Salix matsudana, Juniperus rigida, Fraxinus mandshurica and Ulmus pumila are frontal 5 tree species with weight value 78.14, 76.92, 75.96, 74.72 and 74.56 respectively, were used for urban protection forest; Ulmus pumila, Salix matsudana, Populus alba×P.beroliensis, Acer negundo and Larix gemelinii are frontal 5 arbor tree species with weight value 80.07, 79.07, 77.5, 72.42 and 71.67 respectively, were used for road protection forest; Salix matsudana, Populus alba×P.beroliensis, Ulmus pumila, Larixgemelinii and Betula platyphlla are frontal 5 tree species with weight value 92.37, 88.72, 86.62, 85.82 and 85.7 respectively, were used for river protection forest; Fraxinus mandshurica, Larix gemelinii, Populus alba*P.beroliensis, Ulmus pumila and Salix matsudana are frontal 5 tree species with weight value 89.61, 8.35, 87.12, 85.56 and 80.15 respectively, were used for wood forest; Cornus alba, Prunus tomentosa, Primus triloba, Syringa obalata and Sambucus williamsii are frontal 5 shrubs with weight value 82.93, 81.23, 80.85, 78.38 and 77.78 respectively, were used for landscape forest; and Acer negundo,Malus baccata, Sorbus pohuashanensis, Prunus maackii and Prunus padus are frontal 5 arbors with weight value 82, 81.52, 80.3, 79.62 and 78.9 respectively, were used for landscape forest; Prunus salicina, Prunu
根据哈尔滨地区不同林种的功能要求,给出了不同指标的期望值,通过查询系统可以得到旱柳、榆树、蒙古栎、银中杨、白桦为符合农田防护林的前五位的树种,权重值分别为90.37、90.12、88.12、87.55、86.2;糖槭、旱柳、杜松、水曲柳、榆树为符合城市防护林的前五位的树种,权重值分别为78.14、76.92、75.96、74.72、74.56;榆树、早柳、银中杨、糖槭、兴安落叶松为符合道路防护林的前五位的乔木树种,权重值分别为80.07、79.07、77.5、72.42、71.67;旱柳、银中杨、榆树、兴安落叶松、白桦为符合河岸防护林的前五位的树种,权重值分别为92.37、88.72、86.62、85.82、85.7:水曲柳、兴安落叶松、银中杨、榆树、旱柳为符合用材林的前五位的树种,权重值分别为89.61、88.35、87.12、85.56、80.15;红瑞木、毛樱桃、榆叶梅、紫丁香、接骨木为符合风景林前五位的灌木树种,权重值分别为82.93、81.23、80.85、78.38、77.78,糖槭、山丁子、花楸、山桃稠李、稠李为符合风景林前五位的乔木树种,权重值分别为82、81.52、80.3、79.62、78.9;李、杏、文冠果、山楂、野梨为符合经济林的前五位的树种,权重值分别为88.85、80.88、73.25、69.35、63.77。
- 相关中文对照歌词
- You Are What You Are (Beautiful)
- Some Things Just Are The Way They Are
- Honey, Are You Straight Or Are You Blind?
- We Are The Way We Are
- Men Are From Mars, Women Are From Hell
- You Are, You Are
- You Are What You Are
- When You Are Who You Are
- You Are / You Are Lord
- We Are Who We Are
- 推荐网络例句
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The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.
采用不同浓度K2CrO4(0,0.4,0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗,测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。
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By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.
通过分析数学形态学在图像中的理论基础,研究二值图像的形态分析算法,探讨最小结构元素的两种基本形态:膨胀和腐蚀;分析了数学形态学复杂算法的基本原理,把数学形态学的部分并行处理理念引入到家实际应用中。
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Have a good policy environment, real estate, secondary and tertiary markets can develop more rapidly and improved.
有一个良好的政策环境,房地产,二级和三级市场的发展更加迅速改善。