三体的
- 与 三体的 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Using the information from exploratory adit can class rock mass structure, drawing lessons from internal successful experiences in rock mass quality and weathering zone classification, dam abutment rock mass is classed by choosing quantization indices of rock mass structure, the outcome same as investigation, accord with commonly geoloical rule. Using the information from slope image can finish stability analysis of lithologic slope, get 3-D cutaway view and date, it is important datum for research engineering geoloical condition of dam abutment rock mass.
利用勘探平洞洞壁图片采集的结构面信息处理成坝肩岩体结构研究的基本量化指标及实体模型,进行拉西瓦水电站坝肩岩体结构类型划分,并借鉴国内岩体风化分带、岩体质量分级规范,以岩体结构量化指标作为风化分带和质量分级的主要指标,划分两岸坝肩岩体风化分带、岩体质量分级,划分结果与野外现场判定及地质师室内划分结果相符合;利用边坡图片解译结果完成了坝肩岩体抗滑稳定边界条件分析,及不稳定块体的量化值和三维展示图,为坝肩工程地质条件评价提供重要资料。
-
Triglyceride content in the fat body was as high as 75% at the initial stage of pupation, but decreased gradually with the development of the pupae. Accordingly, triglyceride content in the ovary was only 20% at the beginning and increased to 64% before eclosion, and the content of diglyceride and free fatty acids in the blood also increased significantly. This suggests that fat in the ovary is transported from the fat body through the blood.
在化蛹初期,脂肪体中甘油三脂的含量高达75%左右,随着蛹体发育而逐渐降低;与此同时,卵巢中甘油三脂的含量在化蛹初期仅为20%,到羽化前增加到64%;血液中甘油二脂和游离脂肪酸的含量也有明显增加,说明卵巢中的脂肪是由脂肪体经血液转送而来的。
-
The results show that the microscopical pore structure of the three dimensional orthogonal woven carbon fabric structure perform is composed of body-centered cubes which arranged periodically at spaces. The net structure and shape of the pores of perform are determined by the size and proration of the fasciculus diameter, which are key factors influencing the gaseous permeability and final density of composites. Once the proration of the fasciculus diameters of different directions is determined, the trend of diversification of the permeability followed by pore rate during CVI process and the density of composites are stated, and the permeability increases with the increase of the fasciculus diameter.
研究结果表明:三维正交结构炭纤维预制体的宏观孔隙结构在空间上可以看成是由呈周期性排列的体心立方"晶胞"构成; X , Y 和 Z 3个方向纤维束直径大小及比例关系决定三维正交结构炭纤维预制体宏观孔隙网络的结构和形状,也是决定反应气体在孔隙中的比渗透率和复合材料最终致密度的重要因素;当 X , Y 和 Z 3个方向纤维束直径的比例关系一定时,不同预制体在CVI增密过程中比渗透率随孔隙率变化的趋势相同;复合材料的最终致密度一定;比渗透率随纤维束直径增大而略有增大。
-
In this thesis,the AM1,MNDO,MINDO/3(mainly AM1)and INDO/S-CI semiempirical MO methods were used toinvestigate the excited-state intramolecular protontransfer reactions of salicylic acid derivatives—salicylic acid,methyl salicylate,salicylaldehyde,o-hydroxyaceto-phenone,salicylamide and 3-hydroxy-picolinamide (6 conformers and 2-3 anion species);2-(2'-hydroxy-5' methylphenyl) benzotriazole(4 conformers),2-(2' hydroxyphenyl) benzimidazole (3 conformers and 3anion species),Bis-2,5-(2-benzoxazolyl)hydroquinone(3 conformers),2-(2'-hydroxyphenyl)benzothiazole(2conformers) and 7-azaindole dimer (2 conformers).Theinvestigations were described as follows.Geometry optimization,relative stability andhydrogen bonding energy First,for sylicylic acid derivative molecules,the AM1,MNDO and MINDO/3 methods were used toinvestigate ground-state geometry optimization,energies,relative stabilities and hydrogen-bondingenergies on the five kinds of the molecules(designing 6 conformers and 2-3 anion species).Comparing with experimental data,the optimizedgeometry,the order of stability,the hydrogen-bonding energies and the distances between O-O in O-H..O hydrogen bonds by AM1 method were in agreementwith the experimental data,however,the C-C bondlengths optimized by MNDO and MINDO/3 were longer,C-O and O-H bond lengths were shorter;for C-N bondlengths,the results opitimized by MNDO method werethe same as those by AM1 method,nevertheless the C-Nbond lengths given by MINDO/3 method were muchshorter.For some sylicylic acid derivatives(e.g.methyl salicylate,salicylamide),the order ofstabilities on the conformers given by MNDO andMINDO/3 methods were not in agreement with theexisting conformers deduced by experimental methods,and the hydrogen bonding energies calculated by MNDO.and MINDO/3 methods were smaller.Second,the studyon the other systems found that the optimizedgeometry of the proton-transfered product with INDOmethod could not be obtained,only could theoptimized geometry of reactant be obtained,and thecalculated hydrogen bonding energies were greater.Many results of calculation indicated that the studyon the excited-state intramolecular proton transferreaction system using AM1 method was suitable andreliable.
本论文用AM1、MNDO、MINDO/3(主要是AM1)和INDO/S-CI半经验分子轨道方法对水杨酸衍生物系列——水杨酸、水杨酸甲酯、水杨醛、O-羟基乙酰苯酮、水杨酰胺和3-羟基吡啶酰胺(6种异构体和2-3种阴离子);2-(2'-羟基-5'-甲基苯基)苯并三〓唑(4种异构体);2-(2'-羟基苯基)苯并咪唑(3种异构体和3种阴离子);2,5-二间氮杂氧茚氢醌(3种异构体);2-(2'-羟基苯基)间〓杂硫茚(2种异构体)和7-〓吲哚二体(2种异构体)的激发态分子内质子转移反应在以下几个方面进行了较系统的理论研究:几何构型优化和相对稳定性及氢键能首先以水杨酸衍生物系列分子为例,用AM1、MNDO和MINDO/3方法考察了5种分子(每种分子设计6种异构体和2-3种阴离子)的基态几何构型优化,能量、相对稳定性和氢键能计算,通过和实验数据进行比较,AM1方法给出的优化几何构型、稳定性次序、氢键能和O—H。。。O氢键的0—0距离与实验数据吻合最好,MNDO和MINDO/3方法优化的C-C键长偏长,C-O键和O-H键长偏短;对于C-N键长,MNDO和AM1优化结果差别不大,而MINDO/3给出了过短的C-N键长,MNDO和MINDO/3方法给出的有些水杨酸衍生物分子(如水杨酸甲酯和水杨酰胺)异构体的稳定性次序和实验上推测的可存在异构体结果不一致,MNDO和MINDO/3方法给出的氢键能偏低,对其他体系的研究发现INDO方法常常不能得到质子转移产物的优化几何构型,只能得到反应物的优化构型,并且估算的氢键能偏高,大量的计算结果表明AM1方法对本论文研究的激发态分子内质子转移反应体系是适宜和可靠的。
-
From the structural analysis of three praseodymium complexes, we could draw a conclusion that as the dentate arms of carboxyl group on ligands elongating, the coordination numbers of Pr and the coordination modes of ligands increase, and the mean distances between metallic atoms of metallic helices existing in these complexes augment.2. By altering 5-substituting group of isophthalic acid three series of lanthanide complexes 8~19 with 5-methylisophthalic acid and 5-nitroisophthalic acid have been prepared.
从得到的三个配体的镨配合物的结构分析可以看出,随配体的羧基齿臂的增长,Pr的配位数逐渐增大,配体的配位模式增多,配合物中存在的螺旋金属链中的金属间平均距离增大。2、通过改变间苯二甲酸配体的5位取代基,制备了5-甲基间苯二甲酸和5-硝基间苯二甲酸的三个系列稀土羧酸配合物8~19。
-
Based on the results, it has found that six distinct layers can be identified from lateral to medial in the olfactory bulbs, and the adults have more cells than the subadults. Ventricles of the adults take up larger vacuity, have richer choroids plexus, and primordial pallium and primordial hippocampus of them are more developed than the subadults, in which the primordial piriform is well-developed. Ventral to the primordial hippocampus, there is a septal area which can not be divided into medial and lateral parts in both adults and subadults, nor there is lateral limiting sulcus to separate the primordial piriform and the corpus striatum, but only in the subadults, a medial limiting sulcus can be clearly identified to separate the primordial hippocampus and the septal area. Besides, the corpus striatum of Onychodactylus fischeri is paleostriatum. The cell group that located at two sides of the third ventricle is amygdale, and shape and size of neurons within the telencephalon are poorly differentiation.
结果表明:爪鲵嗅球内细胞从外到内大致可分为6层结构,亚成体的细胞数量少于成体;成体爪鲵的侧脑室所占空间较大,脉络丛更为丰富,原始大脑皮层和原始海马都比亚成体发达,后者大脑内原始梨状区较为发达;隔区位于原始海马的下方,成体和亚成体都没有外侧隔核和内侧隔核之分,也没有外侧界沟作为原始梨状区和纹状体的分界,而在亚成体的侧脑室壁有内侧界沟区分原始海马和隔区,成体则没有;此外,爪鲵的纹状体属于古纹状体,杏仁核是位于第三脑室两侧的两个细胞团,端脑内细胞形态和大小分化较为单一。
-
During growth phase the metabolic flux to glycerol synthesis was much large, and the carbon was mostly catabolized in TCA in the glycerol production process. With large flux through TCA cycle ATP could be overproduced by NADH oxidation and most ATP may be in futile cycle, which may be the reason that the yield of glycerol is hard to be improved.
分析发现菌体生长阶段合成丙三醇的代谢流较大,这可能是细胞为了维持高渗透压环境下正常生理功能所需;但是在菌体生长停止后,产丙三醇阶段合成丙三醇的代谢流并没有增加,而是TCA循环中代谢流增加,于是产生的NADH氧化生成更多ATP,大都ATP可能是无效循环消耗掉,这是丙三醇产率没有达到理想产率的根本所在。
-
In order to explain clearly the variation status of embryo from tetrapoid Robinia pseudoacacia and fully use the variation resource initiated in the sexual reproduction of TRP in the further improvement of TRP, the classification and vitalities of seed embryos from tetraploid Robinia pseudoacacia were studied. The main results are as follow. According to the cotyledon number, color and plumpness, the seed embryos of TRP could be divided into 5 types: YVT (yellow, very replete,2 cotyledons), YMT( yellow, more replete,3 cotyledons ), YRF ( yellow, replete,4 cotyledons ), GNT ( green, no-replete, 2 cotyledons ) and WNT ( white, no-replete, 2 cotyledons ).
为了阐明刺槐同源四倍体种子胚变异状况及充分利用刺槐同源四倍体有性过程创造的变异资源对四倍体刺槐进行遗传改良,研究了刺槐同源四倍体种子胚类型及其生活力特征,主要结论如下:刺槐同源四倍体种子胚按照子叶数量、颜色及饱满程度,可以划分出5个类型:黄二、黄三、黄四、绿二及白二,所有类型种子胚混合平均单胚重量接近二倍体的1/2。
-
The results show that the microscopical pore structure of the three dimensional orthogonal woven carbon fabric structure perform is composed of body-centered cubes which arranged periodically at spaces. The net structure and shape of the pores of perform are determined by the size and proration of the fasciculus diameter, which are key factors influencing the gaseous permeability and final density of composites. Once the proration of the fasciculus diameters of different directions is determined, the trend of diversification of the permeability followed by pore rate during CVI process and the density of composites are stated, and the permeability increases with the increase of the fasciculus diameter.
研究结果表明:三维正交结构炭纤维预制体的宏观孔隙结构在空间上可以看成是由呈周期性排列的体心立方&晶胞&构成; X , Y 和 Z 3个方向纤维束直径大小及比例关系决定三维正交结构炭纤维预制体宏观孔隙网络的结构和形状,也是决定反应气体在孔隙中的比渗透率和复合材料最终致密度的重要因素;当 X , Y 和 Z 3个方向纤维束直径的比例关系一定时,不同预制体在CVI增密过程中比渗透率随孔隙率变化的趋势相同;复合材料的最终致密度一定;比渗透率随纤维束直径增大而略有增大。
-
Using maximum flooding surface and local explosure erosion surface as the correlation framework surface in the 4-th hierarchical base-level cycles, sand-body in the 3-th hierarchical base-level cycles formed in the 4-th hierarchical base-level cycles may be correlated layer by layer. The law of the sand-body and the characters of reservoir heterogeneity formed in the 4-th hierarchical base-level cycles are discussed. The study shows:①During early period of the 4-th hierarchical base-level cycle rising, subaqueous distributary channel formed, continuously stacked vertically, and migrated in limit range laterally, and channel sand-body stretches farther longitudinally, and lacks interbeds of mud rock and siltsand in sand rock, reservoir heterogeneity is relatively weak.②During mid-period of the 4-th hierarchical base-level cycle rising, subsaqueous distributary channel migrated actively, channel divided and converged strongly to form netted sand-body and sand sheet mainly, but interbeds of mud rock and siltsand increases gradually in sand-body, reservoir heterogeneity increased.③During later period of the 4-th hierarchical base-level rising and early period of the 4-th hierarchical base-level falling, reservoir sand-body was poor, and only form thin sand-body of subsaqueous distributary channel, subsaqeuous creveas and distal mouth bar, sand-bodys are surrounded by mud and silt rock.
进一步采用以第4层次基准面旋回中相当最大湖泛面的相转换面和具有区域性暴露侵蚀作用的层序边界面为等时地层对比框架的边界,对发育于MSC2—MSC4三个第4层次基准面旋回的第3层次基准面旋回内砂体进行了逐层等时对比,探讨第4层次等时地层对比格架内储集砂体发育分布规律,及储集砂体的非均质性特点,研究发现:①第4层次基准面上升初期发育的水下分流河道,砂体呈连续叠置、侧向迁移受限,纵向上呈长距离延伸的带状产出,砂体间泥、粉砂岩夹层少,储层非均质性相对较弱;②在第4层次基准面上升中期发育的水下分流河道侧向迁移活跃,纵向延伸过程中分流汇合作用强烈,以形成网状或席状连片砂体为主,但砂体间泥、粉砂岩夹层逐渐增多,储层非均质性增强;③第4层次基准面上升晚期和下降早期,不利于储集砂体发育,仅出现少量薄的水下分流河道、水下决口扇、远—河口砂坝砂体。
- 推荐网络例句
-
The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.
其基本内涵可概括为:以确有疗效的中药复方为研究对象,以现代科学技术和传统中医药理论为技术支持,以该复方所治病证的药效响应为评价标准,以优化重组疗效更优的新复方为研究目的。
-
Ever since our world has been a world, native forests have been indiscriminately exploited by man.
自从我们的世界一直是世界原生森林被任意剥削人。
-
I don't… don't know. He's unconscious.
我不……我不知道他休克了。