A method of measuring the materials thermal conductivity is proposed, through optimal approach of the measurement of the surface temperature with the analytical solution to calculate the materials thermal conductivity in the third boundary condition.

提出了一種根據(jù)第三類邊界條件下物體瞬態(tài)溫度場的變化規(guī)律，利用物體表面溫度的實(shí)測值推算物體導(dǎo)熱系數(shù)的快速測定方法久久R99视频。

The traditionary mechanical design methods and theories can not be used in MEMS design due to surface effect and size effect.

由于尺寸效應(yīng)和表面效應(yīng)等因素的影響，在微尺度下的機(jī)械設(shè)計(jì)不能直接套用傳統(tǒng)的機(jī)械設(shè)計(jì)理論和分析方法。

An AlTiN ceramic coating was deposited on the surface of biomedical Ti6Al4V alloy by High Ionic Pulse technology. The properties of biofriction and wear of AlTiN coating in simulated serum lubrication at 37℃ were investigated and compared with that of non-coating Ti6Al4V alloy.

采用高度離子化脈沖工藝在醫(yī)用鈦合金Ti6Al4V表面制備AlTiN涂層又粗又长又色又爽视频；在摩擦磨損試驗(yàn)機(jī)上測試了涂層在37℃的模擬人體生理血清液潤滑條件下的摩擦磨損性能国产日韩视频合集一区，并與之和未經(jīng)涂層的Ti6Al4V合金作比較。

Results indicate that as the molecular mass of polyethylene glycol increases, the conductance is increased obviously, and the surface tension is decreased from 36.28 mN/m to 31.30 mN/m, while the cloud point is increased from 39.6 ℃ to 58.9 ℃. Their emulsifying abilities to BA, MMA and BMA are superior to that of OP-10, and the surfactants is homopolymerize or copolymerize with acrylate at 70 ℃ under the initiation of AIBN.

結(jié)果表明男女猛烈无遮挡免费视频滚床，隨聚乙烯醇分子量的增加一级大香一级大香香蕉，非離子表面活性劑的電導(dǎo)率顯著增加、表面張力由36.28 mN/m降低至31.30 mN/m欧美国产综合操逼视频、濁點(diǎn)由39.6 ℃增加至58.9 ℃一级片高清无码在线观看不卡，對丙烯酸丁酯、甲基丙烯酸甲酯和甲基丙烯酸丁酯的乳化能力均優(yōu)于常用乳化劑OP-10先锋影音最新资源网站，以AIBN作引發(fā)劑在70 ℃下既能均聚又可與丙烯酸酯進(jìn)行共聚反應(yīng)69毛片免费视频观看。

The silica/Polystyrene monocore-shell nanocomposite particles(95nm in diameter) were synthesized through miniemulsion polymerization by using sodium dodecyl sulfate surfactant,hexadecane costabilizer in the presence of silica particles(50nm in diameter) coated with methacryloxytrimethoxysilane.

采用細(xì)乳液聚合法，以3-甲基丙烯酰氧基丙基三甲氧基硅烷(KH570)表面改性的直徑50nm的氧化硅粒子為核av网站在线管看，在乳化劑国产丝袜福利在线、助乳化劑、引發(fā)劑存在的情況下制備了小粒徑少妇高潮太爽了在线观看、單核核殼結(jié)構(gòu)氧化硅/聚苯乙烯納米復(fù)合微球日韩精品激情视频网站免费观看。

The using instance of mould is complex, its always abated by abrasion, fatigue, or bad hot stability, and so on. To extend the longevity of mould, people try to use general heat treatment and other surface treatment, especially the gas nitriding, because of its inherent excellence, such as wearable、incohesive国产美女激情视频、co-fatigueQVOD经典激情视频图片小说、stand against permanence intensity and causticity under changeable load and so on, also the gas nitriding facility is cheapness, so the gas nitriding technics is abroad used.

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Conditions in the laboratory, using traditional microbiological culture method study the different heavy metal concentrations of exogenous Cd2+ for Pistia stratiotes and Myriophyllum spicatum L root-like surface of the impact of micro-organisms .

在實(shí)驗(yàn)室條件下，用傳統(tǒng)的微生物培養(yǎng)法亚洲中文字幕久久精品，研究了不同濃度的外源重金屬 Cd2+對大薸和穗狀狐尾藻根表面微生物的影響黄色视频免费观看91。

It has nonreciprocity similar to that of ferromagnet on condition that the external magnetic field is parallel to magnetic lattices, and the dispersion relation of the antiferromagnet has nonreciprocity , too.

通過計(jì)算和討論得到了當(dāng)外磁場沿x軸方向，原磁晶磁矩沿z軸方向免费一级日本大片，波矢沿±y軸方向時日逼小黄片，反鐵磁質(zhì)表面磁極化激元的極化與鐵磁質(zhì)在平行于磁晶磁矩的外磁場下的極化相類似，具有非對易性超级毛片网址在线观看，且其色散關(guān)系也具有非對易性一级黄色AAA性爱片。

ABSTRACT The study on experiment and theory on Adsorption and Desorption of Light Paraffinic Hydrocarbons in Real Reservoir Cores at High Temperature and High Pressure is a theme which is of difficult, but of practical and theoretical values, and which also is the foundation of the study on the laws of phase behavior and percolation of gas condensate system in porous media.

高溫高壓下烴類氣體在儲層介質(zhì)表面吸附的實(shí)驗(yàn)和理論研究是具有相當(dāng)難度和較高理論價值和應(yīng)用價值的前沿性研究課題国产激情av在线，是儲層介質(zhì)天然氣和凝析油氣體系相平衡規(guī)律以及滲流規(guī)律研究的基礎(chǔ)。

It is shown that the adsorption of propiolic alcohol on the surface of pure aluminium is the important reason resulted from corrosion inhibition and that the rule of adsorption conforms with Langmuir's isotherm.

采用失重法研究了氫氧化鈉溶液中丙炔醇在不同溫度和濃度下對銘的緩蝕作用97无码免费公开在线视频，發(fā)現(xiàn)丙炔醇在鋁表面上的吸附是產(chǎn)生緩蝕作用的重要原因美女下部隐私扒开视频无遮挡，且吸附規(guī)律服從Langmuir吸附等溫式。