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  peak
     Study on Two Peak Phenomena in Micellar Electrokinetic Capillary Chromatography
     胶束电动毛细管色谱双现象研究
短句来源
     INTERNAL FRICTION PEAK ASSOCIATED WITH THE STRESSINDUCED DIFFUSION OF CARBON IN LOW-CARBON ALLOY MARTENSITE
     碳在低碳合金马氏体中微扩散所引起的内耗
短句来源
     INTERNAL FRICTION PEAK ASSOCIATED WITH THE STRESSINDUCED DIFFUSION OF HYDROGEN MOLECULES IN HIGH CHROMIUM-NICKEL ALLOY STEELS
     氢分子在几种高铬镍合金钢中微扩散所引起的内耗
短句来源
     MECHANISM OF CARBON DIFFUSION PEAK IN F. C. C. IRON-NICKEL ALLOYS
     碳在面心铁-镍合金中扩散的机构
短句来源
     AN INTERNAL FRICTION PEAK RELATED TO δ-FERRITE IN A Cr-Ni-Mo-Ti HEAT-RESISTING STEEL
     18-8-3-1 Cr-Ni-Mo-Ti耐热钢中与δ铁素体有关的一个内耗
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  peaks
     FURTHER EXPERIMENTS ON THE DISLOCATION INTERNAL FRICTION PEAKS WITH ANOMALOUS AMPLITUDE EFFECTIN Al-0.5% Cu ALLOY AND THE DISLOCATION KINK ATMOSPHERE MODEL
     铝-0.5%铜合金中反常振幅效应内耗的进一步实验和位错弯结气团模型
短句来源
     LOW FREQUENCY DISLOCATION INTERNAL FRICTION PEAKS WITH ANOMALOUS AMPLITUDE EFFECT IN Al-0.1% Mg ALLOY
     铝-0.1%镁合金中表现反常振幅效应的低频位错内耗
短句来源
     IDENTIFICATION OF SPECTRAL PEAKS OF R_(1-6) AND R_(7, 8)RETINULAR CELLS FROM ERG OF THE COMPOUND EYE OF HOUSEFLY
     从舍蝇复眼ERG光谱敏感性的测定对R_(1-6)和R_(7、8)网膜细胞产生的敏感的鉴别
短句来源
     INTERNAL FRICTION PEAKS IN COLD-WORKED Ti-2.5 Cu-O ALLOY
     Ti—2.5 Cu—O合金的冷加工内耗
短句来源
     Hight and Shape of Metastable Ion Peaks
     亚稳离子高和
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  hump
     The study of the experimental data indicates that the equatorial anomaly crests in the Far East is situated somewhere between Changsa (28.1°N, 113.0°E) and Guangzhou (23.2°N, 113.3°E). The northern hump of the equatorial anomaly is mostly between Hengyang (26.8°N, 112.5°E) and Yingde (24.2°N, 113°E).
     由观测资料的分析表明,东经115°线附近,电离层赤道异常区在我国长沙(28.1°N,113.0°E)以南和广州(23.2°N,113.3°E)以北地段,其北‘驼’顶位于衡阳(26.8°N,112.5°E)至英德(24.2°N,113.5°E)一带上空.
短句来源
     The relative transmittance T at the hump peak of 130Hz under E=2.0kV/mm is nearly 7 times that of zero electric field strength.
     当E=2.0 kV/mm时,在130 Hz处透射的相对透射率约为零电场时的7倍。
短句来源
     As φ increases from 16% to 31%,the maximum T changes from 1.8 to 7(E=2.0kV/mm) and the responding(frequency) band of the enhanced hump moves towards the high frequency direction.
     随颗粒体积分数从16%增大到31%,电流变液中声波最大相对透射率(E=2.0 kV/mm)从1.8变为7,增强的响应频带向高频移动。
短句来源
     Multiple hump function optimization based on niche genetic algorithm
     基于小生境遗传算法的多函数优化
短句来源
     With high water head and a catchment area of 53.2km~2,the Shangcheng Hydropower plant in Hezhou city of Guangxi shoulders hump modulation and dry regulating.
     广西贺州市上程水电站工程,是高水头电站,电站定位为调调枯,坝址以上集雨面积53.2 km2。
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  crest
     The silk infrared rays spectrum of element structure of protein,appearing wave crest at 3300cm~(-1),1650cm~(-1), 1520cm~(-1),1235cm~(-1). 960cm~(-1),600-700cm~(-1).
     茧丝蛋白质分子结构的红外光谱出现3300cm~(-1)、1650cm~(-1)、1520cm~(-1)、1235cm~(-1)、960cm~(-1)、600~700cm~(-1)谱
短句来源
     SPAM has sulfonate band at 1200cm-1 wave crest and has primary alcohol R-CH2-O-absorption peak at 1240cm-1 wave crest.
     SPAM在1200cm-1处有碘酸盐谱带,在1240cm-1处有伯醇R─CH2─O─吸收
短句来源
     With a 1. 10 mm diameter light spot on the surface of graphite, if the laser energy decreases from 320 mJ to 150 mJ, the attenuating time of the sound crest of ablation increases from 3 ms to 8 ms, and the critical ablating energy of graphite is about 65 mJ.
     当光斑直径为1.10mm时,激光能量从320mJ下降到150mJ,烧蚀声下降时间从3 ms上升到8 ms,石墨的烧蚀光能约为65mJ。
短句来源
     (4) The position of the northern crest ionospheric equatorial anomaly near 120°E is on Hainan in the morning,nearly on Guangzhou in the afternoon.
     (4)120°E附近电离层赤道异常北上午段在海南岛附近,下午段在广州附近。
短句来源
     Their structure are verified by infrared spectroscopy, the result shows that SPAM, HPAM and PAM have absorption peak of amides at 1620cm-1 and 1660 cm-1 wave crest.
     测定结果表明:SPAM、HPAM、PAM3种物质在1620cm-1和1660cm-1处均有酰胺Ⅰ带和Ⅱ带的吸收
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  peak
The α-isomer exhibited rapid and significantly higher peak plasma concentrations in all the species post intramuscular administrations, while β-isomer showed prolonged plasma levels.
      
The peak potential obtained was -1.17 V (vs Ag-AgCl).
      
The peak current was proportional to the concentration of calcium in the range of 5.0×10-8-4.2×10-5 mol L-1.
      
But at the end of the period, i.e., 2 or 3 days before the cell density reaches the maximum, an NO peak appeared, with the NO concentration reaching 10 nmol/L.
      
The unbound ketoprofen concentration was directly measured from the height of the frontal peak.
      
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  peaks
The liquid chromatograms obtained by TIC from ESI-MS provided more information on chromatographic peaks than those obtained by DAD or TIC from APCI-MS.
      
The maximum RRS peaks are at 307 nm (hsDNA, sDNA) and 290 nm (ctDNA), and other peaks are at 350 nm.
      
The main characteristic peaks in these transient absorption spectra were attributed and the growth-decay trends of several transient species were investigated.
      
Three oxidation peaks were observed for CO absorbed on Pt-CNTs/GC electrodes.
      
Among the three oxidation peaks, peak I was presumed to be due to the bridged CO absorption while peaks II and III were attributed to the split in the linear CO which is absorbed on the Pt-CNTs/GC nanocluster with different particle size and Pt film.
      
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  hump
Let λ and μ be sequence spaces and have both the signed-weak gliding hump property, (λ, μ) the algebra of the infinite matrix operators which transform λ into μ.
      
In this paper, it is proved that if λ and μ are β-spaces and λβ and μβ have also the signed-weak gliding hump property, then for any polar topology τ, ((λ, μ), τ) is always sequentially complete locally convex topological algebra.
      
The numerical results of the magnetic dipole magnetic field show that the magnetic magnitude distribution has a hump-shape, whose direction is perpendicular with the antenna axis direction.
      
A localization method based on the hump-shape signal detection is presented.
      
Construction of the stochastic models of routing the railway freight cars descending from the yard hump was considered.
      
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  crest
We found that the change of sap flow velocity was a single-crest curve on clear days and multi-crest curve on cloudy and rainy days.
      
Neural crest tumors of childhood are particularly resistant to apoptosis induction by chemotherapeutic agents.
      
The special characteristics of a flush wave are also possessed by a flow in a lower millrace at some distance from the dam, with the overflow of water arising in the reservoir over the crest of the dam.
      
It is interesting that the separation does not occur on the rigid wall but at an interface near the crest of the soliton.
      
A solitary wave is characterized in this approximation by two variables - the energy density per unit length measured along its crest, and the direction of the normal to the wave crest.
      
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  其他


Hair-line cracks or flakes in steel are known to be associated with the presence of hydrogen. A prevailing theory states that the crack formation is due to disruptive hydrogen pressure being built up in defects in steel. However, little was known regarding to the nature of these defects and the detailed mechanism of the hair-line crack formation. An attempt was made in the present research to investigate this problem by means of internal friction measurements. The preliminary experiments show: (1) The presence...

Hair-line cracks or flakes in steel are known to be associated with the presence of hydrogen. A prevailing theory states that the crack formation is due to disruptive hydrogen pressure being built up in defects in steel. However, little was known regarding to the nature of these defects and the detailed mechanism of the hair-line crack formation. An attempt was made in the present research to investigate this problem by means of internal friction measurements. The preliminary experiments show: (1) The presence of hydrogen in certain steels may give rise to the appearance of an internal friction peak when internal friction is plotted against the temperature of measurement; (2) a slight amount of cold-work or soaking at a given temperature has a considerable effect on the optimum temperature of the observed internal friction peak, which indicates that the internal friction peak may be connected with the defects or stress condition in steel; (3) the internal friction peak shows an anomalous amplitude effect, i.e., at a given temperature of measurement an internal friction peak is obtained when the internal friction is plotted against the stress amplitude. Such an anomalous behavior is similar to that previously observed by. one of the authors (Ke) in the case of aluminimum containing 0.5% Cu. It is therefore considered that the internal friction peaks observed may be related to the interaction of hydrogen with the dislocations in steel.

钢的内部发裂已经公认为与钢中的氢气有关。现有的理论认为这是由于氢气聚集于钢中的内部缺陷产生破裂压力所引起,然而关于缺陷的性质和引起内部发裂的详细机构迄今还没有明确的了解。本文尝试用内耗测量的方法来研究这个问题。初步实验的结果指出: (1)氢在钢中可以引起内耗(将内耗表示为测量温度的函数时); (2)轻微冷加工或保温对于内耗的颠值温度有着显著的影响,这表示所得的内耗与钢中的缺陷和应力状态有关系; (3)所得的内耗表现有反常的振幅效应,即在一定的观测温度时,如将内耗表示为外加应力的函数,则也得到一个内耗。这与本文作者之一以前在铝铜合金中所观测到的反常内耗的性质和表现相同,因而所得的内耗可能是由于氢与钢中的原子脱节的交互作用所引起来的。

It is well-known that blue brittleness and temper brittleness of steel are related to diffusion and precipitation in steel. An attempt was made in the present research to investigate this problem by means of internal friction measurements. Experiments show that the diffusion of carbon in α-iron is not affected by carbon concentration, alloying elements and the stage of precipitation in iron. The diffusion of nitrogen in α-iron is, however, hindered by the addition of alloying elements, and is enhanced during...

It is well-known that blue brittleness and temper brittleness of steel are related to diffusion and precipitation in steel. An attempt was made in the present research to investigate this problem by means of internal friction measurements. Experiments show that the diffusion of carbon in α-iron is not affected by carbon concentration, alloying elements and the stage of precipitation in iron. The diffusion of nitrogen in α-iron is, however, hindered by the addition of alloying elements, and is enhanced during the initial stage of precipitation.

一般认为钢的变脆例如蓝脆和回火脆都与钢中的扩散和沉淀有关系。本文尝试用内耗测量的方法研究碳与氮在α-铁及碳素钢中的扩散、脱溶和沉淀,从而进一步地了解钢的变脆的机构。实验的结果指出,碳在α-铁中的扩散不受自身浓度、合金元素和沉淀历史的影响。氮的情形与碳显著不同,合金元素使氮的扩散变慢,在沉淀初期使氮的扩散加速。 较有系统地研究了碳、氮在加工后的α-铁中脱溶时所引起的内耗(当振动频率约为每秒1周时出现在250℃左右),发现了高温淬火在含碳或氮较多的试样中所产生的内应力也可以引起这个内耗。实验指出:①这个脱溶内耗的出现条件与钢的蓝脆的出现条件相同,都是一种应变时效或淬火时效的现象;②与这个内耗有关的碳、氮是处于原子的状态。这些联系使我们认为钢的蓝脆是一种应变脱溶或淬火脱溶的过程,是由于原子状态的碳或氮聚集于钢中的内应力区域或晶体缺陷(例如原子脱节)中所引起来的。关于这方面的深入研究正在继续进行中。 根据本实验及以前关于钢铁中碳氮的扩散、脱溶和沉淀所得的结果,对于钢的回火脆的机构也提出了一种初步的看法。回火脆是一种回火沉淀的过程,引起回火脆的沉淀似乎是氮化物而不...

一般认为钢的变脆例如蓝脆和回火脆都与钢中的扩散和沉淀有关系。本文尝试用内耗测量的方法研究碳与氮在α-铁及碳素钢中的扩散、脱溶和沉淀,从而进一步地了解钢的变脆的机构。实验的结果指出,碳在α-铁中的扩散不受自身浓度、合金元素和沉淀历史的影响。氮的情形与碳显著不同,合金元素使氮的扩散变慢,在沉淀初期使氮的扩散加速。 较有系统地研究了碳、氮在加工后的α-铁中脱溶时所引起的内耗(当振动频率约为每秒1周时出现在250℃左右),发现了高温淬火在含碳或氮较多的试样中所产生的内应力也可以引起这个内耗。实验指出:①这个脱溶内耗的出现条件与钢的蓝脆的出现条件相同,都是一种应变时效或淬火时效的现象;②与这个内耗有关的碳、氮是处于原子的状态。这些联系使我们认为钢的蓝脆是一种应变脱溶或淬火脱溶的过程,是由于原子状态的碳或氮聚集于钢中的内应力区域或晶体缺陷(例如原子脱节)中所引起来的。关于这方面的深入研究正在继续进行中。 根据本实验及以前关于钢铁中碳氮的扩散、脱溶和沉淀所得的结果,对于钢的回火脆的机构也提出了一种初步的看法。回火脆是一种回火沉淀的过程,引起回火脆的沉淀似乎是氮化物而不是碳化物。

The coupling between elastic and magnetic phenomena in ferro-magnetic materials often gives rise to internal friction. In previous studies on magnetoelastic internal frictions, the applied magnetic field was mostly static. In the present experiment, nickel specimen was made to vibrate in torsion under an alternating magnetic field, and a pronounced internal friction peak was observed when internal friction was plotted as a function of the alternating magnetic field strength. This peak did not appear under similar...

The coupling between elastic and magnetic phenomena in ferro-magnetic materials often gives rise to internal friction. In previous studies on magnetoelastic internal frictions, the applied magnetic field was mostly static. In the present experiment, nickel specimen was made to vibrate in torsion under an alternating magnetic field, and a pronounced internal friction peak was observed when internal friction was plotted as a function of the alternating magnetic field strength. This peak did not appear under similar conditions when using a static magnetic field. The position of the peak was shifted toward the side of a higher magnetic field when the nickel specimen was either cold-worked or contained carbon; and it was shifted toward the side of a lower magnetic field when the specimen was previously annealed at an elevated temperature. The height of the peak was considerably raised with an increase of vibrating frequency.

在铁磁性物质中,弹性现象与磁性现象之间的耦合每每引起内耗。过去作磁弹性内耗研究所用的磁场大都是静磁场。我们令镍试样在交变磁场中作扭转振动,测量内耗。把内耗表示为磁场强度的函数时,得到一个显著的内耗。这个内耗在静磁场下不出现。把镍试样经过冷加工处理或在试样中加碳,都足以把内耗的位置移向高磁场强度的一边,而保温退火则把内耗移向低磁场强度的一边。此外,这个内耗的高度由于所用扭转频率的增加而显著地增加。 根据镍的磁化曲线上各部分所相当的可逆及不可逆过程,可以定性地解释上述内耗的来源及其所受各种因素的影响。

 
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