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The effective channel mobility of4H-SiC MOSFETs is increased significantly by high temperature anneals in nitric oxide.4H-SiC MOSFET with hydrogen postoxidation annealing has a lower threshold voltage of3.1V and a wide gate voltage operation range in which the inversion channel mobility is more than100cm 2 /Vs.
SiC的雪崩击穿电场是Si的十倍,因此,理论上SiC单极功率器件的导通电阻可以比Si器件的低400倍,但在6H-SiCMOS结构中,由于反型层的电子迁移率较小,沟道迁移率测量值仅为40~50cm2/Vs,远远低于6H-SiC的体迁移率400cm2/Vs眼1熏2演,限制了SiC功率MOSFET的导通电阻Ron。
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An injected air volume as small as 0.15 mL wasdetected by ICE in 90% of injections performed, whereas PCDand TEE detected only half of the boluses of 0.25–0.30mL of air, and required boluses of 0.4–1.0 mL to achieve100% detection.
ICE 对于与0.15 mL 一样小的注射空气容量的发现率为90%,而 PCD 和 TEE 对于0.25–0.30mL 的空气注射量的发现率仅50%,且空气容量需要达到0.4–1.0 mL ,发现率才能达到100%。
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An injected air volume as small as 0.15 mL wasdetected by ICE in 90% of injections performed, whereas PCDand TEE detected only half of the boluses of 0.25–0.30mL of air, and required boluses of 0.4–1.0 mL to achieve100% detection.
ICE 对於与0.15 mL 一样小的注射空气容量的发现率为90%,而 PCD 和 TEE 对於0.25–0.30mL 的空气注射量的发现率仅50%,且空气容量需要达到0.4–1.0 mL ,发现率才能达到100%。
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To the product yield is mainly studied in the brominating process, and the best synthesizing process conditions is obtained; the effect of the selection, quantity of the solvent, the reaction temperature, reaction time, and the catalyzer to the product yield is researched in the process of ketalization and the relative preferable process conditions has been got.
在脱溴反应中,主要研究了溶剂的用量、溶剂配比、物料配比、反应时间和反应温度等对目标产物得率的影响;在选择性溴化反应中,主要研究了溶剂和溴化剂的选择、物料配比、溶剂的用量等参数对产物质量和得率的影响,最终得到了合成的最佳工艺条件;在缩酮化反应中,主要研究了溶剂的选择、溶剂的用量、反应温度、反应时间和催化剂的选择等参数对产物得率的影响,并得到合成的较佳工艺条件。
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Red cell membrane damnified by oxidation can be recovered with LSPC at 5.0 g/mL, the fluorescence polarization degree of the membrane was similar to normal level, indicate that increased anisotropic by membrane oxidation decreased with LSPC.2 Antioxidation Effect of LSPC on skinLSPC can improve body antioxidation ability by increasing the antioxidase synthesis and its activity in skin and serum.
半体内法测得LSPC能显著激活NK细胞活性。表明,LSPC对免疫功能有较强的调节作用。4莲房原花青素对酪氨酸酶及黑色素生物合成抑制作用初步研究 LsPC对黑色素的生物合成有显著的抑制作用。7.8 X10一49/L一5.09几LsPc对酪氨酸酶活力有抑制作用,其中,7.8 X1049/L一0.19/L时,随LsPC浓度增大抑制率下降;0.lg/L~4.og/L时,随着LSPC浓度增大抑制率逐渐增高,最大抑制率高达99.9%,且该抑制作用属于可逆的竞争性抑制。
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The results show that the mechanical properties of this PMMA depend strongly on the testing temperature. The Young's modulus and flow stress were found to decrease with increasing temperature at low strain rate. At the strain rate of 10^(-1) 1/s, strain soften was observed under all experiment temperatures. At high strain rate, with the temperature increase, the flow stress deceases remarkably while the failure strain increases, and the strain softening was also observed at the temperature above 333K.
试验结果表明:在准静态载荷下,随着温度的升高,材料的弹性模量和流动应力减小,在应变率为10^(-1) 1/s时表现出明显的应变软化行为;在高应变率(550 1/s)下,随着温度的升高,材料的流动应力逐渐减小而破坏应变增大,当温度超过333K时也有应变软化现象发生;在相同温度下,随着应变率的升高,材料的流动应力增大,但破坏应变减小。
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The absorption power of the resin is 810 for deionizing water, 770 for alcoho...
所得树脂吸水率达810,对10%的醇水溶液的吸液率达770,对0.9%的盐水溶液的吸液率达150。
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After treated with Kuhan Jiedu Liangxue Heji(Mixture with Bitter Taste And Cold Nature for Detoxicating And Cooling Blood),the number and aggregation rate of platelet obviously ascend while there is not any improvement in the group treated with Qingying Liangxue Heji(Mixture for Clearing Away Heat From Ying-Fen Syndrome and Cooling Blood),which n...
用苦寒解毒凉血合剂治疗,血小板数和聚集率皆明显回升,而无苦寒解毒的清营凉血合剂效果较差。说明苦寒解毒药物能使减少的血小板数回升,降低的聚集率升高。提示临床治疗急性热病出现血小板数量减少和聚集率降低,应注重用苦寒解毒药物治疗。
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Lithologies are mostly sand and carbonate rocks, caps are mud rock, shale and magmatite. Entrap types are anticline, fault block rebuilt by breaking and the screened entrap diapered rock mass. The composition is CO_2, N_2, CH_4, C_2H_6 and He etc. It is magma air source body and its geologic fashions are intrusion and buried volcanic conduit. The relations between gas reservoirs and gas source bodies have three types: magma intrusion-breaking-communicated gas reservoir, magma intrusion-contacted CO_2 reservoir and buried volcanic conduit-contacted gas reservoir. The CO_2 migration in magma intrusion is consisted of fusing and crystallizing phases;it in volcanic conduit is consisted of near-surface effusion and crystallizing phases.The buoyancy of CO_2 in water far more than migration resistance in breaking or chink, CO_2 is easy float upward, the floating can results in differentiation of different density gases and concentration of sealed gas. The gas in sand reservoir firstly migrate into the higher porosity and coefficient of permeability sand, and along with the pressure going up it migrate into the lower. In magma intrusion-breaking-reservoir migration, CO_2 firstly migrate into watered breaking, began gravity differentiation and concentrate, the gas pressure time and again go up, CO_2 migrate into reservoir and concentrate under expansibility as the pressure reach upward a given extend. The CO_2 in reservoir experience four breaking modes: chemistry deposition, dissolution, diffusion and mechanic breaking, the pressure balance can be broken by faulting and the CO_2 will further migrate and form new reservoir.
济阳坳陷已发现的八里泊、阳25、平方王、平南、高青、花17 CO_2气藏主要储集层位有奥陶系、中生界、沙四段、沙三段、沙一段、馆陶组和明化镇组,储集层岩性以砂岩和碳酸盐岩为主,盖层以泥质岩、页岩和岩浆岩为主。;圈闭类型主要为受断裂改造的背斜、断块及刺穿岩体遮挡圈闭。;气体成分主要有CO_2、N_2、CH_4、C_2H_6、He等。;主要气源体为岩浆气源体,气源体的主要地质形式为侵入体和埋藏的火山通道。;气藏和气源体的空间关系有岩浆侵入体一断裂一气藏沟通型、岩浆侵入体-CO_2气储集层接触型和埋藏火山通道-气储集层接触型三种类型。;岩浆侵入体CO_2气运移分为熔融运移阶段和结晶运移阶段,火山通道中CO_2气运移分成近地表喷发阶段和结晶运移阶段。;断裂中,CO_2在水中的浮力远大于运移阻力,CO_2气容易上浮,CO_2在断裂中的易浮性导致不同密度气体的分异和走向上封闭的断裂气体相对富集。;气体在砂岩储集层运移聚集具有选择性,会优先进入孔隙度和渗透率较高的砂岩,随着压力增加,才会进入孔隙度和渗透率较低的砂岩;在岩浆气源体-断裂-储集层空间输导格架下,CO_2气在膨胀力的驱动下,首先进入含水的断裂并重力分异而聚集,气体压力会不断增高,当压力增至一定程度,CO_2气会向高孔隙度、渗透率的储集层运移并聚集。;在岩浆气源体-储集层接触空间输导格架下,CO_2气受膨胀力的驱动直接向储集层运移并聚集。;成藏的CO_2气会经历化学沉淀、溶解、扩散和机械破坏四种破坏方式,会受断裂切割而打破压力平衡,沿断裂进一步运移和聚集成藏。
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Results The arrive rate of the funds was 31%.The success show up rate of the patients who referred by the hospitals to tuberculosis dispensaries was 47%.
结果 经费到位率 31 。3%、可疑症状转诊到位率 4 7%、涂阳发现率 1 2 。4 / 1 0万、涂阳肺结核病人督导率 5 1 。4 %、涂阳肺结核病人完成治疗率73%,距规划目标的 1 0 0 %、70 %、1 8.5 / 1 0万、80 %、90 %均有较大差距。
- 推荐网络例句
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We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.
索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。
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The relationship between communicative competence and grammar teaching should be that of the ends and the means.
交际能力和语法的关系应该是目标与途径的关系。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。