化工类英文科技文献译中文

浅景韵 2009-03-05 08:04:04 298 浏览

There is a fair body of literature concerning the electroreduction of glucose. This has been reviewed by Fedoronko. He divided his review into the polarographic work and that done on solid electrodes. The polarographic studies form a cohere... There is a fair body of literature concerning the electroreduction of glucose. This has been reviewed by Fedoronko. He divided his review into the polarographic work and that done on solid electrodes. The polarographic studies form a coherent picture， in which the experimentally observed data， which take the form of a plateau， not diffusion controlled， are explained in terms of a rate-determining step of mutarotation from the cyclic (inactive) form of the sugar to the linear (electroactive) form. The process is known to be both acid and base catalyzed， and has been reviewed by Capon. It is generally assumed that no hydrogen evolution takes place in the polaro- graphic plateau region. 翻译通顺有加分！谢谢大家！不需要机器翻译的！展开

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夏大大io307 2009-03-06 00:00:00

不好意思，好多专业单词不认识啊

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韩静菲1 2009-03-06 00:00:00

我只是进来看看的，看来200分都没人搞的定啊。搞的定的都没上百度啊

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yyli0728 2009-03-06 00:00:00

这是关于电解葡萄糖的一篇详尽文献。FEDORONKO已经评论过此案。他从极谱法和固体电极法两方面来论述。极谱分析形成的相关图片上面含有实验观测的数据，并以没有漫射控制普拉图形式表现出来，根据旋光作用的速率决定法来解释，原糖的怠性状态到线性电解质状态，整个过程需要酸和基础催化剂，而且已经由CAPON论证。通常假设在图形的平坦区域没有氢气的形成。

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沧玄神州 2009-03-06 00:00:00

有一个公平的研究文献的葡萄糖electroreduction。这一直是由Fedoronko。他将他的评论变成了工作，做polarographic固体电极。研究了一幅清晰的图象polarographic形式，在试验观测数据，形成一个稳定的不扩散控制，是解释一个限速步骤的从循环(消极mutarotation)形式的糖的线性(导电)的形式。这个过程是两酸和碱催化，并由Capon。人们通常认为，无氢进化发生在polaro -图形高原地区。

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jyh61161551 2009-03-06 00:00:00

有较为合理数量的文献是关于葡萄糖的电解还原。费德隆科（Fedoronko）阅读回顾了这些文献。他将文献分为极谱工作和对固体电极完成的部分。极谱研究形成一个连贯的图片，其中实验观测数据，采取的平面的形式，不控制扩散，被解释为依靠从糖的循环（无效）形式到线性（电）的形式时速率决定过程的变旋作用。这一过程被称为酸碱催化，卡蓬（Capon）对此进行了回顾。人们普遍认为，析氢在极谱法坪区不会发生。

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gtbhtrhy 2009-03-06 00:00:00

关于葡萄糖的电还原已有大量文献。对此，Fedoronko曾做过综述。他在综述中将这些工作分为极谱法和固态电极法两类。其中极谱法的工作已经给出了一个连贯的图像，这个图像把不受扩散控制的平台形实验数据解释为糖分子从环状结构（非活性状态）转化为线性结构（电活性状态）这一变旋反应的速率决定步骤。这个过程已知既可为酸催化又可为碱催化，Capon对此有过综述。通常认为在电极图形平台区域没有氢析出反应发生。

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化工类英文科技文献译中文: There is a fair body of literature concerning the electroreduction of glucose. This has been reviewed by Fedoronko. He divided his review into the polarographic work and that done on solid electrodes. The polarographic studies form a cohere... There is a fair body of literature concerning the electroreduction of glucose. This has been reviewed by Fedoronko. He divided his review into the polarographic work and that done on solid electrodes. The polarographic studies form a coherent picture， in which the experimentally observed data， which take the form of a plateau， not diffusion controlled， are explained in terms of a rate-determining step of mutarotation from the cyclic (inactive) form of the sugar to the linear (electroactive) form. The process is known to be both acid and base catalyzed， and has been reviewed by Capon. It is generally assumed that no hydrogen evolution takes place in the polaro- graphic plateau region. 翻译通顺有加分！谢谢大家！不需要机器翻译的！展开

求一篇化工类英语文献，带中文翻译，谢谢: 求一篇化工类英语文献，带中文翻译，谢谢，原文Z好是PDF格式

求翻译英文文献: 2.2. Material Characterizations. A field emission scanning electron microscope (SEM， JEOL 6701F) was used to investigate the morphologies， particle sizes of the samples. Transmission electron microscopy and elemental compositions of the ... 2.2. Material Characterizations. A field emission scanning electron microscope (SEM， JEOL 6701F) was used to investigate the morphologies， particle sizes of the samples. Transmission electron microscopy and elemental compositions of the samples were determined by JEM-2100F (JEOL) coupled with an energy-dispersive X-ray spectroscopy (EDX， Phoenix) system. Wide-angle and low-angle X-ray powder diffraction (XRD) of the as-obtained samples were recorded on a Rigaku D/max-2500 with Cu Kα radiation (λ = 1.540 56 Å) operated at 40 kV and 200 mA. Raman measurements were performed using a DXR from Thermo Scientific with a laser wavelength of 532 nm. To calculate the pore size distribution and pore volumes， the nitrogen absorption and desorption isotherms were measured at 77.3 K with an Autosorb-1 specific surface area analyzer from Quantachrome. The content of N in N-doped porous carbon was determined by NHC elemental analysis using Flash EA 1112. Thermogravimetric (TG) analysis of S/C composite was performed on TG/DTA 6300 in an N2 flow to obtain the S content in the composite. A four-contact method was applied to measure the powder electronic conductivity of porous carbons. The powder sample was pressed to disk at 4 MPa with two stainless-steel plungers， whose resistance was measured by a Keithley 2400 digital multimeter in fourwire mode. The conductivity of the sample was calculated according to the resistance and the size of the disk. Information of the surface elements was obtained by X-ray photoelectron spectroscopy (XPS) performed on the Thermo Scientific ESCALab 250Xi using 200 W monochromatic Al Kα radiation. The 500 μm X-ray spot was used for XPS analysis. The base pressure in the analysis chamber was about 3 × 10−10 mbar. All reported data of XPS binding energy are calibrated based on the hydrocarbon C 1s line at 284.8 eV from adventitious carbon. Spectra were fitted with Lorentzian−Gaussian functions and smart background using Thermo Avantage software. 展开

求助，英文文献翻译！: 2. Experimental 2.1 Materials Nano-CaCO3 particles (D50: 30−70 nm by TEM (Fig. 1) and BET: ca.17m2·g-1) were supplied by Shanghai Zhuoyue Nanotech Corporation. Methyl methacrylate (MMA， Shanghai Lingfeng Chemicals) was purified ... 2. Experimental 2.1 Materials Nano-CaCO3 particles (D50: 30−70 nm by TEM (Fig. 1) and BET: ca.17m2·g-1) were supplied by Shanghai Zhuoyue Nanotech Corporation. Methyl methacrylate (MMA， Shanghai Lingfeng Chemicals) was purified by distillation under reduced pressure; potassium persulphate (K2S2O8， initiator， Shanghai Lingfeng Chemicals) was of chemical grade. Silane coupling agent A174 (γ-methacryloxypropyltrimethoxysilane) was purchased from Shanghai Yaohua Factory. Polyvinylchloride (PVC， WS-1000S) was supplied by Shanghai Chlor-Alkali Chemical Co.， Ltd. Fig. 1 Morphology of untreated CaCO3 nanoparticles. Fig. 2 Morphology of PMMA-coated CaCO3 nanoparticles. 2.2 PMMA emulsion polymerization on CaCO3 nanoparticles 2.2.1 Surface silanation of nano-CaCO3 particles The nano-CaCO3 particles were homogeneously dispersed in ethanol (solid content 20%) by a sonication dispersion equipment. The slurry was then heated to 80°C with stirring， and the silane coupling agent A174 (5%， calculated based on the weight of nano-CaCO3 particles) was added into the slurry. After the slurry was stirred for 120 min at 80°C， it was filtered and the filter cake was then dried at 120°C in low vacuum for 120 min to obtain silanated CaCO3 powders. 展开

求助，英文文献翻译~: PMMA has good compatibility with PVC due to specific interaction of a hydrogen bonding type between carbonyl groups (C=O) of PMMA and hydrogen from (CHCl) groups of PVC (Belhaneche-Bensemra et al.， 2002; Ramesh et al.， 2002). Zhou et al... PMMA has good compatibility with PVC due to specific interaction of a hydrogen bonding type between carbonyl groups (C=O) of PMMA and hydrogen from (CHCl) groups of PVC (Belhaneche-Bensemra et al.， 2002; Ramesh et al.， 2002). Zhou et al. (2001) studied the relationship between the coating thickness of PMMA on the surface of talc and mechanical properties of PMMA-g-talc/PVC composites， and found that there existed a critical thickness. Xie (2001) found that the PMMA coating on talc improved the dispersion of talc in the PVC matrix and enhanced the interfacial adhesion between talc and PVC. There appears to be a critical coating thickness of PMMA on the talc surface for optimum toughening. Quan et al. (2002) reported improved toughness and intension of the PVC composites filled with CaCO3/ACR core-shell complex particles prepared by in-situ emulsion polymerization of acrylic ester. In the present work， PMMA coated on the surface of CaCO3 nanoparticles by in-situ emulsion polymerization was characterized by FT-IR and 1H-NMR. The effects of PMMA thickness and particle fraction on the mechanical properties of PMMA-coated CaCO3 /PVC nanocomposites were also investigated. 展开

纳米材料英文文献加翻译:

通信方面的英文文献翻译！！: 以下是文献的一部分，愿意帮忙的高手留下邮箱，我把文件发给你，若能完成，加分：SpatialCompressiveSensingApproachForFieldDirectionalityEstimation.I.INTRODUCTIONVarietyoft... 以下是文献的一部分，愿意帮忙的高手留下邮箱，我把文件发给你，若能完成，加分： Spatial Compressive Sensing Approach For Field Directionality Estimation. I. INTRODUCTION Variety of techniques for field directionality estimation were studied in literature [1]-[5]. Thus， a theoretical analysis of the relationship between the hydrophone array output and the noise field was conducted in [1]-[5]. The developed techniques were based on the array beamformer output or the crossspectral matrix between outputs of array elements [4]-[5]. The problem of a field directionality estimation in ocean， using horizontal line towed array was also addressed in literature [5]- [8]. Recently， problems of direction of arrival and field directionality estimation for moving sensors arrays have attracted renewed interest [9]-[12]. It was shown that an array motion can improve an array performance assuming temporal coherence of successive samples [10]-[11]. In [12]， the wavefield sampling method that exploits the linear relationship between the noise field and the collection of beamformer outputs over various array orientations was proposed. It was shown that the wavefield sampling (WS) method outperforms other tested methods. This algorithm was implemented via the recursive estimation method and its convergence to the unique solution was promised for a specific set of array orientations and beamformer look directions. However， a method for a proper array orientation and beamformer look direction sequence selection remains an open question. The quality of the field directionality estimation is determined by the angular resolution. The higher angular resolution is， the more accurate estimation of the far field sources， and better detection performance can be achieved. One of fundamental relations in the array signal processing is that the angular resolution is directly proportional to the number of the array elements [13]. This relation motivates the desire for longer arrays that can achieve higher resolution. Unfortunately， the requirement contradicts the implementation and installation limitations that motivate shorter arrays. Moreover， implementation of longer arrays for maneuvering platforms such as unmanned underwater vehicles (UUV) can even be impossible [14]. These contradictions motivate the quest for alternative array signal processing methods. Usually， the field directionality is modeled as a finite set of strong far-field narrow-band sources and an isotropic lowpower noise [1]. In this work， the model of the field directionality is adopted in the following way. First， the bearing angle space is uniformly sampled into a large number of discrete angles. Next， it is assumed that ether the high energy that corresponds to the far-field strong sources or the low-energy that corresponds to the isotropic noise is received at the sensor array from every of these discrete azimuth angles. 展开

波谱英文文献在哪里下载?:

白暨豚的资料(中文和英文）: 给我一篇关于白暨豚的英文，谢谢啦！Z好有中文翻译。... 给我一篇关于白暨豚的英文，谢谢啦！Z好有中文翻译。展开

急求“红外测温控制系统”的英文文献: 急求“红外测温控制系统”的英文文献，Z好是非接触，在线式的，基于单片机的，谢谢了！

西门子编程软件都是英文，怎么改成中文: 我装的时候语言选项里没有中文选项，可是英文用着太费力了，怎么样才能把他改成中文的。谢谢。中文版的软件在哪里免费下载啊。谢谢

跪求一篇有关于频率计的英文文献: 只要于频率计有关即可 2000字中文文献（带有翻译）急急急！！！！发邮箱：289941885@qq.com

谁能帮我翻译一下这段英文文献啊: Fig. 1 shows that diamond particles are dispersed in the copper matrix. Since the diamond particles are easy to be stripped off during mechanical polishing， small pits are left on the surface of samples. When the samples were analyzed b... Fig. 1 shows that diamond particles are dispersed in the copper matrix. Since the diamond particles are easy to be stripped off during mechanical polishing， small pits are left on the surface of samples. When the samples were analyzed by electron probe for carbon， the particles displayed high carbon peaks， as shown in Fig. 2. Fig. 3 exhibits the analyzed result for extracted product of the copper–diamond composite by X-ray diffraction (XRD) analysis. It is shown that three dif- fraction peaks exist， shown as A， B and C， respectively. The interplanar distances corresponding to the three peaks and standard ones for diamond are compared in Table 1. The measured values of the interplanar distances are in good agreement with the standard ones， demon- strating that the extracted product should be the carbon in diamond state. Fig. 4(a) gives a TEM micrograph showing distribution and morphology of diamond particles (indicated as A， B， and C) in the copper–diamond composite. The calibration of interplanar distance for diffraction rings in Fig. 4(b) was given in Table 2. Compared to Table 1， it is also demon- strated that the calibrated interplanar distances for the diffraction rings conform to the standard ones of diamond. Therefore， it is believed that the graphitization of diamond particles hardly occurs after sintering at 1150–1220 K in the copper–diamond composite. Although diamond is a metastable allotropic modifica- tion of carbon， the graphitization of diamond particles in the copper–diamond composite did not occur， or the degree of graphitization was too small to be found. It is believed that the beginning temperature of graphi- tization would be associated with the purity of diamond powders. The impurities such as some metallic elements reduce the beginning temperature of diamond graphitiza- tion. When diamond is fabricated by the static synthesis method， Fe and Ni are often used as catalysts and are present in diamond as impurities to decrease the beginning temperature of graphitization [6]. It is understandable that both for the graphitization and its reverse reactions， their activation energies can be decreased by catalytic agents. Compared with the diamond fabricated by static synthesis， the diamond powders prepared by explosion method do not contain metallic impurities， thus leading to an obvious increase in the beginning temperature of graphitization. Hence， the detonation synthetic diamond might be more resistant to graphitization and probably suitable for the electric contact materials. 展开

煮蛋器量杯英文mittel是什么中文意思: 煮蛋器量杯英文mittel是什么中文意思

外贸函电简单句——中文译成英文，谢谢啦: 1.如贵公司能提供此类产品，请航邮样品杯一只，并附上贵公司价目单和有关插图。2.我方可给予5%的折扣，不过定货数量在100或100件以上的产品才有此种折扣。3.你方报盘无法接受，因为这... 1.如贵公司能提供此类产品，请航邮样品杯一只，并附上贵公司价目单和有关插图。 2.我方可给予5%的折扣，不过定货数量在100或100件以上的产品才有此种折扣。 3.你方报盘无法接受，因为这里有几批日本货以低得多的价格出售。但是，鉴于我们之间的长期贸易关系，特向你方作此还盘。 4.一俟收到信用证修改通知书后，我方就能立即发货，在香港转船。 5.我方对贵方产品的质量和价格均感满意，现寄去试订单，请供应现货。 6.我们很高兴地告知已接受你方第234号订单。现寄上第789号销售确认书一式两份，请签退一份供我方存档。 7.乙方保证其供给的机器符合甲方的要求和规格。 8.鉴于其他客户皆已接受此价格，我方不能再降价。 9.由于采用FOB价购货，贵方应在利物浦港将货物装在我方指定的船上。一俟订舱后，我方将告知装运货物的船名。 10. 如贵方需要手套一副一副地包装，总共还要一笔500美元的费用。 11.含锡量超过99.85% 的锡锭，出售时有溢价。 12.我方很遗憾得知贵方货物在途中严重受损。保险公司将按照投保险别赔偿贵方损失。 13.对于空舱费、滞期费以及由此而遭受的一切其他损失，卖方应完全负责 14.我方相信，我方现在报盘的机器，从别处用同样的价格是买不来的。 15.必须了解，我方同意延期付款并不等于接受贵方关于所供货物的意见。展开