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This paper is the continuance of that of Lewalle (2001). Lewalle has made use of Gaussian wavelet to obtain the N-S equations with flexion as fundamental quantity in the infinite domain. In that work, Lapalace operator has been degraded to one-order operator. Moreover the resulted N-S equations take the form of diffusion equations with local bilinear mutual interaction kernel.
本文是Lewalle工作的继续,Lewalle利用高斯子波,得到了以弯曲度为基本量的无穷域中N-S方程,此时Lapalace算子降低为一阶导数,并且N-S方程变形为具有局部化双线性相互作用的扩散方程的形式。
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Let x: M→S(superscript n+1)(n≥3) be a hypersurface in the (n+1)-dimensional unit sphere without umbilic points. Denote the Mbius metric, the Mbius form, the Blaschke form and the Mbius second fundamental form of x by G,Ф, A and B, repcectively, which are Mbius invariants in Mbius differential geometry.
设x: M→S(上标 n+1)(n≥3)是n+1-维单位球中的无脐点超曲面,Mbius不变量G,Ф,A和B分别表示x的Mbius度量,Mbius形式,Blaschke形式和Mbius第二基本形式。
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In [29], the author gave that let G be a 2-connected graph with order n and S ≥ t, if |N ∪ N|≥ n - t for any nonadjacent vertices u and v in G, then G is pancyclic or n = 2t, G ≌ K_.
在[29]中,作者给出定理:设G是一个n阶2-连通图,且δ≥t,若对G中的任意两个不相邻的点u和v有|N∪N|≥n-t,那么G是一个泛圈图或n=2t,G≌K_。
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In the chiral SU(3) quark model, we use the coupling between quarks and nonet scalar meson fields and nonet pseudo-scalar meson fields to describe the medium and long range interactions, and use one gluon exchange to describe the short range interaction. In the extended chiral SU(3) quark model, besides the nonet pseudo-scalar meson fields and the nonet scalar meson fields, the coupling between vector meson fields and quarks is also considered, the short range interaction can be dominately described by vector meson exchange. We investigate the nucleon-hyperon interaction in the extended chiral SU(3) quark model and study the S-wave phase shifts of N-Λ and N-Σ systems. Comparing to the results in chiral SU(3) quark model, we find that the short-range interaction could be described either by the one-gluon exchange or vector meson exchange.
在手征SU(3)夸克模型中,用夸克与标量介子九重态和赝标介子九重态场的耦合来描述中长程相互作用,单胶子交换来描述短程相互作用,推广的手征SU(3)夸克模型是在原来手征SU(3)夸克模型的基础上进一步引入了夸克和矢量介子九重态场的耦合,主要由矢量介子交换来描述短程相互作用,在推广手征SU(3)夸克模型下研究了核子-超子相互作用过程,计算了N-Λ和N-Σ相互作用的S波散射相移,通过和手征SU(3)夸克模型的结果比较,发现N-Λ和N-Σ系统的短程相互作用既可以由单胶子交换来描述,也可以由矢量介子交换来描述。
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The anode structure of CI-LIGBT is optimized by numerical simulation, and it is pointed out that segmented p〓 anode region surrounded by n〓 anode region is the key to improve the ability of current limiting, and the more deeper the n〓 anode junction relative to the p〓 anode junction, the more powerful the ability of current limiting is. The affection of the breakdown voltage BV〓 of the reverse biased p〓n〓 junction and the sample resistance upon the latching current, the latching voltage and the on-state voltage have been studied, and it is indicated that the tradeoff between the on-state voltage and the latching characteristics is the excellentest when BV〓 is 1. 1V so that its on-state voltage can be just only 0.6V higher than conventional LIGBT. It is also found that this device is especially suit to high temperature environment. Based on X. B. Chen's surface voltage sustaining structure using optimized variational lateral doping and Ludikhuize's multiple floating rings structure, high voltage LIGBT and is studied in this paper.
通过数值模拟,优化了CI-LIGBT的阳极区结构,指出采用被n〓阳极区包围的单元状p〓阳极区是提高该器件限流能力的关键,而n〓阳极区结深相对p〓阳极区结深越大,器件的限流能力越强;分析了反偏p〓n〓结击穿电压BV〓和取样电阻对器件闩锁电压、闩锁电流和导通压降的影响,得出BV〓在1.1V时器件导通压降和抗闩锁能力间的折衷关系最优,其导通压降仅比普通LIGBT高0.6V;分析了温度对LIGBT闩锁性能的影响,表明CI-LIGBT即使在450K的高温下也不会闩锁,尤其适用于高温工作环境。
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The present invention relates to sulphonyloxazolamines of general formula, wherein R, R represent independently from each other H, A,-(CH2)n-Ar or alkenyl with 2-6 C atoms, R and R together also represent a mononuclear saturated heterocycle with 1-2 N, O and/or S atoms, Z is H, A, CF3, NO2, Hal, OH, OA, NH2, NHA or NA2, A represents alkyl with 1-6 C atoms, Ar is Z-monosubstituted or Z-disubstituted phenyl, halogen is F, Cl, Br or I, n is 1 or 2 or the physiologically acceptable salts or solvates thereof.
本发明涉及式磺酰基∴唑胺或其生理上可接受的盐或溶剂化物,其中R 1 ,R 2 每一个相互独立为H、A、-(CH 2 )n-Ar或具有2到6个C原子的链烯基,R 1 和R 2 也一起为具有1到2个N、O和/或S原子的单核饱和杂环,Z为H、A、CF 3 、NO 2 、卤素、OH、OA、NH 2 。NHA或NA 2 ,A为具有1到6个C原子的烷基,Ar为被Z取代的或Z二-取代的苯基,卤素为F、Cl、Br或I,n为1或2。
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Study the bioactivity of the n-HA/PA66 composite and the effects it would be to body's metabolism of calcium and phosphorus ion in vivo.(3) Study the osteo-conductivity and the ability to repair bone defect of the porous n-HA/PA66 composite and the feasibility use it as the scaffold of bone tissue engineering. Objects and Methods as follows: 1.To evaluate the biocompatability of nano-hydroxyapatite crystals and polyamide composite (n-HA/PA66) with the L929 cells.To proceed the morphological observation and take pictures of L929 cells after 1d,2d,4d,and 7d of co-cultured with extract of n-HA/PA66 ,and direct contact with n-HA/PA66.To determine light absorbtion value of every hole under 500 nm with enzyme linked immunity instrument after 1 d,2 d,4 d,and 7 d of contact of n-HA/PA66 extract with L929 cells,and direct contact with n-HA/PA66.In the meanwhile calculate the relative multiplication rate of cells,and evaluate them by six degree tests for cytotoxicity. To investigate the acute and chronic toxic reaction on the whole body induced by the new nano-hydroapatite crystals and polyamide composite(n-HA/PA66)after implanting in vivo and its effects on partial constitution of animal organs after implanting in vivo,and evaluate the potential and degree of subcuticular stimulation reaction.
本实验主要由以下三部分组成:一、n-HA/PA66 复合材料在动物体内、体外的生物相容性及生物安全性评价二、n-HA/PA66 复合材料植入动物体内的生物活性及近期对机体钙、磷代谢影响的实验研究三、网孔 n-HA/PA66 复合材料作为支架修复兔桡骨节段缺损的动物实验研究主要研究目标及方法如下:参照 GB/T16886.5-1997-ISO 10993-5:1992《医疗器械生物学评价细胞毒性试验体外法》之评价标准和要求,采用规定的 L929 细胞(小鼠结缔组织成纤维细胞),分别经直接接触和材料浸提液与细胞共培养等方式对 n-HA/PA66 复合材料进行细胞毒性测试,采用细胞形态观察法观察两种细胞各组在 24h、48h、72h、5 天后各时相点的细胞形态学变化,并在显微镜下照相,从而对细胞与材料的生物相容性进行定性评价;同时采用细胞生长抑制法,以酶标仪定量测定评价各组 1,2,4,7 天 L929 细胞的相对增殖率,以定量测定并判别材料对细胞的毒性程度。
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D、B. f/F. n combinations accorded with other's conclusions. Symbiotic relationship of AU126/P. n、AU126/F. n、AU126/X112 showed the unculturable phylotypes's roles in the subgingival oral flora.
d、B.f/F.n细菌组合的共生关系与文献报道一致,AU126/P.n、AU126/F.n、AU126/X112细菌对间的共生关系显示了未获培养微生物在龈下菌群中扮演的角色。
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The FTIR spectrum of DTC-TETA showed strong absorption peaks at 1 461-1 388 cm-1 and 1 174-996 cm-1 which were attributed to partly double bonds of C and C,respectively.The UV spectrum of DTC-TETA had two absorption peaks at 265 and 290 nm,assigned to π—π* transition of N…C…S radical and nonbonding electron n—π* transition of S…C…S radical to conjugated system,respectively.
在DTC-TETA的红外光谱图中,在1461-1388cm-1处和1174-996cm-1处分别出现含有部分双键性质的〖JGC〖ZJXS,YN键和键的特征吸收峰;在紫外光谱图中,分别在265和290 nm处出现两个最大吸收峰,分别对应于N…C…S基团的π—π*跃迁和S…C…S基团中硫原子上非键电子向共轭体系的n—π*跃迁;元素分析结果表明该化合物中碳、氢、氮、硫的摩尔比近似为
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At the same time, most WDR neurons failedto respond to the light brush applied to the receptive fields, but they couldbe intensively excited by the noxious pinch.(5) The latency of the latedischarges was shortened from 118.83 ± 3.67ms to 50.72 ± 1.36ms (n〓32, P〓0. 01).(6) Preceding graded number of A〓fiber conditioning inputs (〓mA, 100 μs) delayed the C-activity evoked by the following nociceptive teststimulus activating both A- and C-fiber applied to the sciatic nerve. The latedischarges decreased from 9.29 ± 0.97 to 6.71 ± 0.68 with the A-fiberconditioning stimulus increasing from 1 to 5 (n〓8, P〓0. 05).(7) The intervalbetween the conditioning stimulus and test stimulus (C-T interval) wasincreasing, the inhibition tended to plateau off. At shorter time intervalsthe inhibition became more effective. When C-T interval was limited in 50ms,the inhibitory effects was the strongest, here, the late discharges reducedfrom 12.57±1.21to 2.29±0.42 (n=11, P<0. 01).(8) Behavior research showedthat the rat model of snake venom exhibited neuropathic pain with heathyperalgesia, cold and mechanical allodynia, which corresponding to the acuteelectrophysiological findings.
此时轻刷WDR神经元的感受野不能引起其活动改变,但伤害性齿镊夹捏仍可引起WDR神经元放电增多;〓5〓晚成分放电的潜伏期缩短,即宁静期的时程变短,由给蛇毒前的118.83〓3.67ms降至50.72〓1.36ms〓n〓32,P〓0.01〓;〓6〓在正常动物,如果预先给予只激活A纤维的弱条件电刺激〓mA,100μs〓可抑制随后的伤害性检验刺激所诱发的WDR神经元的晚成分放电,当条件刺激个数从1增加至5时,每次伤害性检验刺激所诱发的晚成分放电数从9.29〓0.97个降至6.71〓0.68个〓n〓8,P〓0.05〓;〓7〓固定条件刺激数为1个,当条件刺激与检验刺激之间的间隔增大时,A纤维条件刺激对WDR神经元晚成分放电的抑制作用逐渐减弱,当条件刺激与检验刺激之间的间隔在50 ms以内时,抑制效应最为显著,此时,晚成分放电数由正常时的12.57〓1.21个降至2.29〓0.42个〓n〓11,P〓0.01〓;〓8〓与急性研究中的WDR神经元电活动的变化结果相匹配,利用蛇毒制备的大鼠模型在行为学上表现为热痛觉过敏、冷觉的痛性感觉异常及机械痛觉过敏等慢性痛症状。
- 相关中文对照歌词
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- 推荐网络例句
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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。
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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。
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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。