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高手翻译,有追加!谢谢,拒绝机译!

小哥他哥们儿 2007-04-28 21:49:54 562  浏览
  • 为研制更为安全有效的疫苗用于禽传染性支气管炎的防制。本研究选取IBV的M基因,通过PCR扩增在两端引入BamHⅠ酶切位点,经酶切插入“自杀性”DNA疫苗载体pSCA1 CMV IE启动子之下的克隆位点,构建了“自杀性”DNA疫苗表达质粒pSCA1-M。经由菌落PCR、酶切及测序鉴... 为研制更为安全有效的疫苗用于禽传染性支气管炎的防制。本研究选取IBV的M基因,通过PCR扩增在两端引入BamHⅠ酶切位点,经酶切插入“自杀性”DNA疫苗载体pSCA1 CMV IE启动子之下的克隆位点,构建了“自杀性”DNA疫苗表达质粒pSCA1-M。经由菌落PCR、酶切及测序鉴定目的基因被成功克隆至载体pSCA1,且方向正确。分别取等量的重组质粒pSCA1-M、常规IBV M基因DNA疫苗pcDNAM及空载体pSCA1转染Vero细胞。48h后经间接免疫荧光试验观察发现,pSCA1-M以及pcDNAM转染组细胞浆均可见特异性亮绿色荧光,pSCA1空载体组无荧光为阴性。这证实“自杀性”DNA疫苗载体能成功表达M基因。而pSCA1-M组所发荧光细胞数比pcDNAM组少,说明的“自杀性”DNA疫苗转染率低于常规DNA疫苗。 为评价IBV “自杀性”DNA疫苗的免疫效果,分别用构建的“自杀性”DNA疫苗pSCA1-M、常规DNA疫苗pcDNAM、空载体pSCA1和IBV灭活疫苗免疫非免疫健康雏鸡,并设对照组注射等量的PBS液。自免疫后每隔一周各组鸡只采血分离血清持续五周,采用流式细胞仪(FACS)和间接ELISA试验分别对宿主外周血T淋巴细胞亚类CD3+、CD4+、CD8+和特异性抗IBV血清IgG的动态变化进行检测,并在第五周后以IBV强毒株进行攻毒保护实验。间接ELISA试验检测结果表明,我们构建的“自杀性”DNA疫苗能刺激机体产生针对IBV的特异性血清抗体,免疫后第三周上升到峰值,随后开始下降,其抗体水平与常规IBV DNA疫苗相当,低于灭活疫苗。T淋巴细胞亚类动态变化结果显示,“自杀性”DNA疫苗pSCA1-M组CD3+、CD4+、CD8+各T淋巴细胞数量均高于其余各组,表现为差异显著(P<0.01或P<0.05)。但在第4周左右有一个明显的下降,之后又略有回升。这说明“自杀性”DNA疫苗能诱导机体产生高于常规DNA疫苗和灭活疫苗的细胞免疫,但随着宿主细胞的凋亡迅速下降。攻毒保护试验结果统计,pSCA1-M组鸡只发病率为12%,保护率为45%;pcDNAM组鸡只发病率为13%,保护率略低于pSCA1-M,为40%;空载体组发病率(75%)<对照组(85%),攻毒保护率两组相同为25%;灭活苗组无鸡只发病死亡。对强毒的抵抗力单基因的“自杀性”DNA疫苗与常规DNA疫苗相当(40%)<灭活苗()。 本研究采用IBV M基因构建“自杀性”DNA疫苗对鸡进行免疫,并对其免疫效果进行评价,在国内外还未见报道。可为研制IBV “自杀性”DNA疫苗提供了基础材料和科学依据。 万分感谢!!! 展开

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  • myv0999 2007-04-29 00:00:00
    The M gene is one of infectious bronchitis virus important immunity original genes, the M gene possibly has the important antigen decision bunch, also has highly the conservative nature in the evolution process. This research selects the M gene of IBV , on the foundation of researching the IBV structure protein gene, expands the PCR increases introduces the BamH I enzyme in the beginnings and ends to cut the position spot, cuts the insertion after the enzyme "the suicide" DNA vaccine carrier pSCA1 CMV the IE start under clone position spot, constructed "the suicide" the DNA vaccine to express material particle pSCA1-M. By the way of colony PCR, the enzyme cut and measured the foreword appraisal goal gene succeeds the clone to carrier pSCA1, also the direction is correct. Separately takes the isometric reorganization material particle pSCA1-M, conventional IBV M gene DNA vaccine pcDNAM and the spatial carrier pSCA1 extension dyes the Vero cell. After 48h, by the indirect immunity fluorescence experiment observation we discovery that pSCA1-M as well as the pcDNAM extension dyes the group 细胞浆 obviously specificity bright green fluorescence, the pSCA1 spatial carrier group does not have the fluorescence is the negative. This confirmed "the suicide" DNA vaccine carries can express the M gene successfully. But the pSCA1-M group institute luminescence cell number are less than the pcDNAM group which shows "the suicide" DNA vaccine extension dyeing rate to be lower than the conventional DNA vaccine. In order to appraise IBV "the suicide" DNA vaccine immunity effect, we use constructly "the suicide" DNA vaccine pSCA1-M, conventional DNA vaccine pcDNAM, spatial carrier pSCA1 and the IBV 灭活 vaccine separately immunity non- immunity health young chicken, and supposes the comparison group to inject the isometric PBS fluid. Since every week after immunization group chickens blood serum separation sustained five weeks. Using FACS and indirect ELISA test regarding 宿主外周 T lymphocyte subpopulations CD 3 +, CD4 +, CD8 + and specificity of serum IgG anti-IBV dynamic change detection separately, after the fifth week take the IBV strains strong attacking drug protection experiment. The indirect ELISA experiment examination result indicated that, we construct "the suicide" DNA vaccine be able to stimulate the organism to produce in view of the IBV specificity blood serum immune body. The third week after the immunity rise the peak value, afterwards starts to drop, its immune body level quite to conventional IBV and the DNA vaccine, is lower than the 灭活 vaccine. The T lymphocyte subgroup dynamic change result showed that, "the suicide" DNA vaccine pSCA1-M group and CD3+, CD4+, CD8+ each T lymphocyte quantity is higher than others. It displays difference remarkable (P<0.01 or P<0.05). But it has an obvious drop about at the 4th week, and slightly afterwards. It indicated that "the suicide" DNA vaccine can induce the organism to produce higher cellular immunity than the conventional DNA vaccine and 灭活 vaccine , but rapid drop along with the death of 宿主 cell. The attacks poisonous protection test result statistics that, the pSCA1-M group chicken disease incidence's rate is 12%, the protection's rate is 50%; The pcDNAM group chicken disease incidence's rate is 13%, the protection's rate is 40%, which is slightly lower than pSCA1-M; The spatial carrier group disease incidence's rate (75%) < the comparison group (85%), two groups of the attacks poisonous protection's rate are in the same as 25%; 灭活苗组无鸡 only arises the death. 对强毒的抵抗力单基因的“自杀性”DNA疫苗与常规DNA疫苗相当(40%)<灭活苗()。 This research uses the IBV M gene to construct "the suicide" DNA vaccine to immunity the chicken, and carries on the appraisal to its immunity effect. It has not been reported at home and in the world . It can provide the foundation material and the scientific basis for researching IBV "the suicide"DNA vaccine. 有句不会翻译~

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高手翻译,有追加!谢谢,拒绝机译!
为研制更为安全有效的疫苗用于禽传染性支气管炎的防制。本研究选取IBV的M基因,通过PCR扩增在两端引入BamHⅠ酶切位点,经酶切插入“自杀性”DNA疫苗载体pSCA1 CMV IE启动子之下的克隆位点,构建了“自杀性”DNA疫苗表达质粒pSCA1-M。经由菌落PCR、酶切及测序鉴... 为研制更为安全有效的疫苗用于禽传染性支气管炎的防制。本研究选取IBV的M基因,通过PCR扩增在两端引入BamHⅠ酶切位点,经酶切插入“自杀性”DNA疫苗载体pSCA1 CMV IE启动子之下的克隆位点,构建了“自杀性”DNA疫苗表达质粒pSCA1-M。经由菌落PCR、酶切及测序鉴定目的基因被成功克隆至载体pSCA1,且方向正确。分别取等量的重组质粒pSCA1-M、常规IBV M基因DNA疫苗pcDNAM及空载体pSCA1转染Vero细胞。48h后经间接免疫荧光试验观察发现,pSCA1-M以及pcDNAM转染组细胞浆均可见特异性亮绿色荧光,pSCA1空载体组无荧光为阴性。这证实“自杀性”DNA疫苗载体能成功表达M基因。而pSCA1-M组所发荧光细胞数比pcDNAM组少,说明的“自杀性”DNA疫苗转染率低于常规DNA疫苗。 为评价IBV “自杀性”DNA疫苗的免疫效果,分别用构建的“自杀性”DNA疫苗pSCA1-M、常规DNA疫苗pcDNAM、空载体pSCA1和IBV灭活疫苗免疫非免疫健康雏鸡,并设对照组注射等量的PBS液。自免疫后每隔一周各组鸡只采血分离血清持续五周,采用流式细胞仪(FACS)和间接ELISA试验分别对宿主外周血T淋巴细胞亚类CD3+、CD4+、CD8+和特异性抗IBV血清IgG的动态变化进行检测,并在第五周后以IBV强毒株进行攻毒保护实验。间接ELISA试验检测结果表明,我们构建的“自杀性”DNA疫苗能刺激机体产生针对IBV的特异性血清抗体,免疫后第三周上升到峰值,随后开始下降,其抗体水平与常规IBV DNA疫苗相当,低于灭活疫苗。T淋巴细胞亚类动态变化结果显示,“自杀性”DNA疫苗pSCA1-M组CD3+、CD4+、CD8+各T淋巴细胞数量均高于其余各组,表现为差异显著(P<0.01或P<0.05)。但在第4周左右有一个明显的下降,之后又略有回升。这说明“自杀性”DNA疫苗能诱导机体产生高于常规DNA疫苗和灭活疫苗的细胞免疫,但随着宿主细胞的凋亡迅速下降。攻毒保护试验结果统计,pSCA1-M组鸡只发病率为12%,保护率为45%;pcDNAM组鸡只发病率为13%,保护率略低于pSCA1-M,为40%;空载体组发病率(75%)<对照组(85%),攻毒保护率两组相同为25%;灭活苗组无鸡只发病死亡。对强毒的抵抗力单基因的“自杀性”DNA疫苗与常规DNA疫苗相当(40%)<灭活苗()。 本研究采用IBV M基因构建“自杀性”DNA疫苗对鸡进行免疫,并对其免疫效果进行评价,在国内外还未见报道。可为研制IBV “自杀性”DNA疫苗提供了基础材料和科学依据。 万分感谢!!! 展开
2007-04-28 21:49:54 562 1
急求英译汉高手(词霸翻译不加分)翻译好了 追加50
http://hi.baidu.com/lyl464797826/blog/item/0c12e646eca6ee3287947334.html
2010-06-19 21:53:22 469 1
英语高手帮忙翻译段英文 谢谢!!
In this paper, the degradation of an azo dye Orange G (OG) on nitrogen-doped TiO2 photocatalysts has been investigated under visible light and sunlight irradiation. Under visible light irradiation, the doped TiO2 nanocatalysts demonstrated ... In this paper, the degradation of an azo dye Orange G (OG) on nitrogen-doped TiO2 photocatalysts has been investigated under visible light and sunlight irradiation. Under visible light irradiation, the doped TiO2 nanocatalysts demonstrated higher activity than the commercial Dugussa P25 TiO2, allowing more efficient utilization of solar light, while under sunlight, P25 showed higher photocatalytic activity. According to the X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and UV–vis spectra analyses, it was found that both the nanosized anatase structure and the appearance of new absorption band in the visible region caused by nitrogen doping were responsible for the significant enhancement of OG degradation under visible light. In addition, the photosensitized oxidation mechanism originated from OG itself was also considered contributing to the higher visible-light-induced degradation efficiency. The effect of the initial pH of the solution and the dosage of hydrogen peroxide under different light sources was also investigated. Under visible light and sunlight, the optimal solution pH was both 2.0, while the optimal dosage of H2O2 was 5.0 and 15.0 mmol/l, respectively. Azodyes, which are characterized by the presence of one or more azo bonds ( N N ), are among the most notorious widespread environmental pollutants associated with textile,cosmetic, food colorants, printing, and pharmaceutical indus-tries. Because of their non-degradability, toxicity, potential mutagenicity and carcinogenicity, wastewaters originating from these dyes production or application industries pose a major threat to the surrounding ecosystems and human beings’ health.[1–3].Environmental concerns and the need of meeting the strin-gent international standards for rejecting wastewaters has made the development of novel and cost-effective processes for the purification of azo dyes effluents an issue of major technological importance. 展开
2011-05-06 19:00:45 323 2
帮忙翻译 化工文献 在线等 拒绝使用自动翻译
Nano-sized Beta zeolites, with a crystal size of 80–100 nm, were synthesized via surface wet method. The nano-sized Hbeta zeolites exhibit much higher activity and stability in the Friedel–Crafts acylation of anisole and toluene with acet... Nano-sized Beta zeolites, with a crystal size of 80–100 nm, were synthesized via surface wet method. The nano-sized Hbeta zeolites exhibit much higher activity and stability in the Friedel–Crafts acylation of anisole and toluene with acetic anhydride than theconventional zeolites of largeparticle size.The smallcrystalsize of nano-sized zeolitesmay bringon more accessible activesites and then enhance the catalytic activity. The exposed pore openings in nano-sized zeolites allow a fast desorption of heavy products from the catalyst and can then reduce the occupancy of active sites by the adsorption of products ,this can then alleviate the catalyst deactivation and improve the catalyst stability deactivation and improve the catalyst stability. 急用 在线等 拒绝用自动翻译 因为这个谁都会 如果有超级好用的自动在线翻译或软件也可以推荐 展开
2009-05-31 04:30:04 394 4
翻译~~高手进
汉族占全国人口的94%,是主体民族,而且“汉语”就是“中文”。ZG有56个民族,如果要找出一个Z能代表整个国家的东西,shou选自然是占主体汉服。... 汉族占全国人口的94%,是主体民族,而且“汉语”就是“中文”。ZG有56个民族,如果要找出一个Z能代表整个国家的东西,shou选自然是占主体汉服。 展开
2007-12-02 03:24:07 604 2
哪位英语高手帮帮忙,翻译英语文章!谢谢1
英语高手,谢谢了!ThecatalystsupportwasimpregnatedwithacetonesolutionofRuCl3.nH2Ouptorutheniumcontentof4w%,understirringfor6h.Afterconcentrationinarotaryevaporator,theobt... 英语高手,谢谢了! The catalyst support was impregnated with acetone solution of RuCl3.nH2O up to ruthenium content of 4 w%, under stirring for 6 h. After concentration in a rotary evaporator, the obtained material was dried in air at 383 K overnight and subjected to preliminary reduction with a 1N2/3H2 stream at 698 K, and then cooled in 1N2/3H2 atmosphere. The potassium promoter was introduced by incipient wet impregnation with KNO3 solution at room temperature with molar ratio of K+ /Ru = 5/1. After stirring for 6 h and infusing for 24 h, the samples were dried in a rotary evaporator at 343K and then dried in the air at 383K for 12 h. The ammonia synthesis activities of the catalysts with about 35-60 meshes were evaluated by 1N2/3H2 flow of 2100 mL/h at 0.2 MPa from 623 K to 773 K. The amount of effluent ammonia was determined by titration method. As we can see from the Table 1, under the same reaction conditions, the catalyst K-Ru/Mg(Al)O exhibited the highest activity, 38.42 mL NH3•h-1•g-1 at 673K, 3 times more active than K-Ru/MgO, 12.88 mL NH3•h-1•g-1 at 748K. This means that selection of supports takes great effects on the activity of catalysts. The ammonia synthesis activity of different supports are K-Ru/Mg(Al)O > K-Ru/Mg-Al-Ca(1) > K-Ru/Mg-Al-Ca(2) > K-Ru/Al2O3 > K-Ru/CaO > K-Ru/MgO. The combinatorial supports showed higher activity than single supports. However, the sequence of temperature corresponding to the highest activity is just opposite to that of the activity. The optimal temperature for K-Ru/Mg(Al)O, 673K, is the lowest of all, on the contrary, that of K-Ru/MgO is the highest, 748K. The Mg(Al)O has a larger surface area of 140.95 m2•g-1 , similar to γ-Al2O3, 110-180 m2•g-1 . The other two combinational supports have little surface areas but higher activities than Al2O3. It suggested that the activity of the catalyst is influenced not only by the dispersion of Ru crystals but also by the crystal structure of the supports. Table 1 Ammonia synthesis activities and BET surface areas Catalyst Optimal activity Highest activity Surface area of support temperature(K) (NH3/mL•h-1•g-1) (m2•g-1) K-Ru/MgO 748 12.88 K-Ru/Al2O3 698 23.79 K-Ru/CaO 723 23.22 K-Ru/Mg(Al)O 673 38.42 140.95 K-Ru/Mg-Al-Ca(1) 698 30.75 29.10 K-Ru/Mg-Al-Ca(2) 698 26.12 14.69 Acknowledgments This work was supported by the NNSF of China (20273053, 20023001 and 29933040), the 973 Programming (001CB108906) and the NSF of Fujian province (E0310001). References 1. C. J. H. Jacobsen, S. Dahl, P. L. Hansen et al., J. Mol. Catal. A, 2000, 163, 19. 2. F. Cavani, F. Trifiro, A. Vaccari, Catal. Today, 1991, 11, 173. 展开
2018-11-14 18:00:49 268 0
高手帮忙翻译!!+100
虚拟仪器是一种新的测试与测控技术,近年来得到了迅速发展,基于虚拟仪器的机器视觉系统就是其领域的一个重要分支。本文围绕基于虚拟仪器的机器视觉有关理论和其在玻璃瓶口缺陷检测中... 虚拟仪器是一种新的测试与测控技术,近年来得到了迅速发展,基于虚拟仪器的机器视觉系统就是其领域的一个重要分支。本文围绕基于虚拟仪器的机器视觉有关理论和其在玻璃瓶口缺陷检测中的具体应用进行了研究。 针对玻璃瓶这一对象检测的高精度、高准确度、实时性的特点,本文提出了一种基于LabVIEW的数字图像处理检测方案,并在设计过程中解决了一系列关键问题:利用硬件和软件的编程实现了对玻璃瓶口的缺陷监测;使用阈值进行图像的二值化处理,并进行开启、闭合以增强图像质量;使用Vision Builder AI对有故障的图像进行故障特征识别; 通过理论研究与实验,证明了本文所提出的玻璃瓶口缺陷监测方法是有效和可行的,为其机器视觉检测的进一步研究和开发奠定了很好的基础 请用专业术语,不要用在线翻译。谢谢····好可以多加分 展开
2008-06-10 11:03:29 394 3
翻译翻译,请高手帮我翻译一下这个说明
Followthesysteminstallationinstructionscarefullyandinthespecifiedorder.ThesoftwaremustbeinstalledonthecomputerbeforeconnectingtheUSBcable.2.1FacilitiesRequirementsFacilit... Follow the system installation instructions carefully and in the specified order. The software must be installed on the computer before connecting the USB cable. 2.1 Facilities Requirements Facilities requirements for the alpha-SE system are listed in Table 2-1 and the system dimensions are given in Fig. 2-1. As shown in Fig. 2-2, the alpha-SE tool requires a clear work area of 20 by 18 inches (500 by 460 mm), excluding the operator computer. 2.2 Unpacking the Hardware Opening the Shipping Container Move the alpha-SE shipping container to the area where the tool will be installed. Open the container and remove the top and side pieces of packing foam. Carefully remove all smaller components from the shipping container, verifying that you received all components, as shown in Fig. 2-3. Finally, remove the alpha-SE ellipsometer and position it on your clear 20” by 18” (510 by 460 mm) workspace. Caution: The alpha-SE ellipsometer without sample chuck weighs approximately 37 lbs. (16 kg.). Please find an assistant to lift the alpha-SE unit out of the shipping carton and on to clear work surface. 展开
2008-06-22 06:30:36 755 4
高分求高手翻译,不要机械翻译
Bimetallic dendrimer-encapsulated nanoparticles(DENs)are important materials,because they have demonstrated improvement in performance compared to the monometallic DENs in many systems when they are used as catalysts.This tutorial review fo... Bimetallic dendrimer-encapsulated nanoparticles(DENs)are important materials,because they have demonstrated improvement in performance compared to the monometallic DENs in many systems when they are used as catalysts.This tutorial review focuses on the recent research advances in bimetallic DENs with respect to their synthesis,characterization,and applications as catalysts.Bimetallic DENs can be made mainly via three routes:co-complexation,sequential loading,and partial displacement.The research in bimetallic DENs has been significantly promoted by the advancement of characterization instruments.The performances of bimetallic DENs as homogeneous and heterogeneous catalysts in organic synthesis have been compared with both monometallic DENs and their physical mixtures.It is concluded that the synergistic electronic effect in bimetallic nanoparticles enhances their catalytic activities. 能翻译多少都可以的 展开
2009-03-24 13:04:22 297 2
请高手帮忙翻译翻译啊,通顺即可,完全用翻译器的请绕道~谢谢~~
Interim Report on Pressure Effect on Waxy-Crude Pipeline-Restart Conditions Investigated by a Model System Yield Phenomenon and Pipeline Restart. Yield stress is the threshold stress required to initiate flow of a viscoplastic ᤙ... Interim Report on Pressure Effect on Waxy-Crude Pipeline-Restart Conditions Investigated by a Model System Yield Phenomenon and Pipeline Restart. Yield stress is the threshold stress required to initiate flow of a viscoplastic fl uid. Waxy crude-oil gels are viscoplastic in nature and exhibit time-dependent Bingham plastic flow behavior during restart under imposed constant pumping pressure. The yielding process of a gel is a complicated process, and different models have been proposed to explain this phenomenon. Wardhaugh and Boger (1991) defined yield stress as the “shear stress at which the gelled oil ceases to behave as a Hookean solid.” Chang et al. (1998) adopted a three-yield stress concept: elastic limit (which defines the onset of viscoelastic creep), static (where fracture occurs), and dynamic yield stress (which describes the broken down structure after yielding). Among these three, only the static yield stress is used to design the restart pump for initiation of flow after shut-in. Several types of apparatus and different techniques (direct and indirect) have been used for determining the yield stress. The results obtained and conclusions regarding their validity and usefulness differ widely. Setups used are capillary U-tubes, large pilot pipeline facilities, lab-scale model pipelines, controlled-stress or -shear rotational rheometry experiments (CSR). The capillary tube and pilot-scale pipeline measurement tech-niques have been criticized as being unsuitable for understanding the yielding behavior of statically cooled waxy crude oils because of nonlinear pressure distribution, pipe compressibility effects, porosity of wax structure, and contraction effects (Wardhaugh and Boger 1991). However, the authors added that an exception to their conclusion was the work by Ronningsen (1992), where reasonable estimates of the yield stress as compared to model pipeline results were obtained with a constant stress rheometer. Recently, Lee et al. (2007) also reported the consistency between the concentric rheometer and a model pipeline system. In fact, model pipeline test is the most common laboratory method resorted to in gel strength measurement because of its geometrical resemblance to the real pipeline. In such tests, gel is formed under controlled conditions (cooling rate, aging temperature, etc.) and pressure is then slowly applied on one end of the gel until flow is observed. The gel strength (τ) is then calculated by: 公式1 展开
2012-05-03 00:39:39 397 2
有英语高手或者会labview的高手帮忙翻译下
LabVIEW就是基于虚拟仪器的开发环境,本文阐述了基于虚拟仪器技术在阻抗参数测量中的应用,根据电子测量的基本原理、计算方法和流程,利用了LabVIEW的特有语言—G语言—对被测对象进行... LabVIEW就是基于虚拟仪器的开发环境,本文阐述了基于虚拟仪器技术在阻抗参数测量中的应用,根据电子测量的基本原理、计算方法和流程,利用了LabVIEW的特有语言—G语言—对被测对象进行程序编译、运行、修改并Z终显示运行结果 有高手帮忙翻译下 展开
2009-06-12 22:57:18 301 1
寻求高手翻译有机化学英语论文!!
Abstract In this work, the effects of the microporosity and chemical surfaceof polymeric adsorbents on adsorptive properties of phenol wereinvestigated. Textural parameters of four kinds of polymeric resins, namely AB-8, D4006, NKA-II and ... Abstract In this work, the effects of the microporosity and chemical surfaceof polymeric adsorbents on adsorptive properties of phenol wereinvestigated. Textural parameters of four kinds of polymeric resins, namely AB-8, D4006, NKA-II and D16 resin, were separately measuredby ASAP 2010. The surface chemistry of these polymeric resins was determined by means of inverse gaschromatography (IGC) and diffusereflectance infrared Fourier transform spectroscopy (DRIFTS). Static equilibrium adsorption experiments were carried out to obtain theisotherms of phenol on the polymeric resins. It was shown that NKA-II and AB-8 resin possessed relatively high BET surface areas andmicropore volumes, while D4006 and D16 resin possessed comparatively low BET surface areas and micropore volumes. The results of IGCexperiments revealed that NKA-II resin had extraordinary high specific component of the free energy of adsorption both for polar acetone andbenzene probe, and thus extraordinary strong surface polarity compared to the other polymeric resins. It was also found that the isotherm ofphenol on NKA-II was much higher than that on the other polymeric resins due to its strongest surface polarity and largest micropore volumeamong four kinds of resins. These experimental observations indicated that adsorption of phenol on the polymeric resins depended greatly ontheir microporosity and surface chemistry. The well-developed microporosity and the strong surface polarity would improve the adsorptionof phenol on the polymeric resins. 2004 Elsevier B.V. All rights reserved. Keywords: Polymeric resin; Phenol; Porosity; Surface chemistry; Inverse gas chromatography 在线等答案,翻译好的加分!!! 展开
2008-05-05 20:57:20 259 1
请教高手这段话怎么翻译
Therefore, combining the results from the SEM, EDS, and XRD pattern, the phase composition of GWZM852 alloy could be inferred to include an a-Mg matrix and large block-shaped Mg12Zn(Y,Gd) phases distributed in a discontinuous network wi... Therefore, combining the results from the SEM, EDS, and XRD pattern, the phase composition of GWZM852 alloy could be inferred to include an a-Mg matrix and large block-shaped Mg12Zn(Y,Gd) phases distributed in a discontinuous network with some small block- and rod-shaped eutectic phases scattered at the edge of the Mg12Zn(Y, Gd) phases. 展开
2013-03-13 08:33:03 359 4
50分!高手帮忙翻译一下
LabVIEWisapowerfulandcomplexprogrammingenvironment.LabVIEWisshortforLaboratoryVirtualInstrumentEngineeringWorkbench.Itisapowerfulandflexibleinstrumentationandanalysissoft... LabVIEW is a powerful and complex programming environment. LabVIEW is short for Laboratory Virtual Instrument Engineering Workbench. It is a powerful and flexible instrumentation and analysis software development application created by the folks at National Instruments—a company that creates hardware and software products that leverage computer technology to help engineers and scientists take measurements, control processes, and analyze and storem data. National Instruments was founded over twenty-five years ago in Austin, Texas by James Truchard (known as Dr. T), Jeffrey Kodosky, and William Nowlin. At the time, all three men were working on sonar applications for the U.S. Navy at the Applied Research Laboratories at The University of Texas at Austin. Searching for a way to connect test equipment to DEC PDP-11 computers, Dr. T decided to develop an interface bus. He recruited Jeff and Bill to join him in his endeavor, and together they successfully developed LabVIEW and the notion of a “virtual instrument.” In the process they managed to infuse their new company—National Instruments—with an entrepreneurial spirit that still pervades the company today. Engineers and scientists in research, development, production, test, and service industries as diverse as automotive, semiconductor, aerospace, electronics, chemical, telecommunications, and pharmaceutical have used and continue touse LabVIEW to support their work. LabVIEW is a major player in the area of testing and measurements, industrial automation, and data analysis. For example, scientists at NASA’s Jet Propulsion Laboratory used LabVIEW to analyze and display Mars Pathfinder Sojourner rover engineering data, including the position and temperature of the rover, how much power remained in the rover’s battery, and generally to monitor Sojourner’s overall health. LabVIEW provides an extensive library of virtual instruments and functions to help you in your programming. It includes conventional program debugging tools with which you can set breakpoints, single-step through the program, and animate the execution so you can observe the flow of data. 毕业设计急用,望高手帮忙翻译一下 展开
2007-06-12 15:44:11 606 2
英语高手帮忙翻译一下
ThequalitysystemofthecompanyisinconformitywithISO9002.Makingcomprehensiveuseofbiotechnology,thecompanyspecializesinmanufacturingandsellingC-4seriesorganicacidsandchiralpr... The quality system of the company is in conformity with ISO 9002 . Making comprehensive use ofbiotechnology, the company specializes in manufacturing and selling C-4series organic acids and chiral products. These products are widely used in many fields such as food, phamaceutical and chemical industries, and are well accepted by the overseas markets. The man products are L-Malic acid , DL-Malic acid, L(+)-Tartaric acid , Fumaric acid, Maleic acid and other organic acids. Annual productivity amounts to 20,000 tones. The company has become an important manufacturer of C-4 series organic acids in the world . All the products of the company have respectively met the different international aadvanced standards such as Food chemicals Codex, U.S. Pharmacopoeia ,British Pharmacopoeia and the products have obtained Star-K Kosher certificate. Above 70% of the Companys products are exported to Japan, Europe, Australias, the United states and middle East , and they are renown and well recognized in the international markets. The company will devote itself to research and development of enzyme technology and organic electrochemistry. It will continuously introduce new food additives, chiral pharmaceutical intermediates, chiral auxiliaries and chiral drugs. Depending on superior quality, good service and high reputation, the company is willing to establish a long-term mutually beneficial business partnership with overseas customers and continue contribute to the happy life of humans. 展开
2009-09-17 10:19:02 497 2
谁能帮我翻译下这片文章?翻译的好的在追加100分!!!
Experimental Method All experiments were carried out in a high-pressure CO2 apparatus (Speed-SFE from Applied Separations) (see Figure 1) with a 300-mL extractor designed for a maximum pressure of 690 bar and a maximum temperature of 2... Experimental Method All experiments were carried out in a high-pressure CO2 apparatus (Speed-SFE from Applied Separations) (see Figure 1) with a 300-mL extractor designed for a maximum pressure of 690 bar and a maximum temperature of 250 °C. The volume of the extractor had to be reduced to 50 mL by a metallic cylinder, which tightens to the extractor wall, because as preliminary tests showed the equilibrium cell has to be completely filled with material. Otherwise, diffusion is the limiting factor and time for reaching equilibrium was too long. The extraction vessel was filled with compressed CO2 by an air-driven pump at closed outlet valves and under static conditions, which means desired pressure and temperature; the cell was incubated for 15 h, maintaining these conditions to reach equilibrium. In preliminary experiments the equilibrium time of 15 h was determined to reach equilibrium. CO2 Sampling. At equilibrium a CO2 phase sample is taken by opening the outlet valve and expanding a certain amount of CO2-substance mixture into a cooling trap filled with toluene, which has the highest solubility for the measured substances under atmospheric conditions. The pure gaseous CO2 passes a rotameter, showing the actual flow rate, and a gas flowmeter for determining the expanded CO2 amount. The content of the cooling trap was filled up with toluene to 30 mL and analyzed by a gas chromatographic method using an electron capture detector (GC-ECD). With the mass of expanded CO2 and composition of the cooling trap solubility at a certain pressure and temperature was calculated. Sampling was repeated four times at a given pressure and temperature and the standard deviation was lower than 5%. Gas Chromatographic Method. The tolueneflame retardant mixture of CO2 sampling was analyzed in a gas chromatograph (HP 5890 Serie II) with an ECD using a capillary column (type HP-1, 12 m  0.2 mm  0.2 ím). The injector temperature was held constant at 290 °C and the detector temperature at 300 °C. The oven temperature was held constant at 290 °C. Calibration with different amounts of HBCD and TBBA in toluene has been done before determining the linear range of calibration line and retention time of substances 展开
2008-06-04 17:17:07 486 1
帮我翻译一段话,谢谢
AretheurbansoilsofGuangzhoupolluted?Inareviewofheavymetalpollutionofsoilsinchina,chenetal.(1999)suggestedthat“Heavy-metalsoilpolltionisdefinedasthephenomenawheretheheavy... Are the urban soils of Guangzhou polluted? In a review of heavy metal pollution of soils in china,chen et al.(1999) suggested that“Heavy-metal soil polltion is defined as the phenomena where the heavy-metal content in soils exceeds natural background levels and causes ecological destruction and deterioration of environmental quality” Table 6 compares the Guangzhou date with some background date and also some critical and trigger limits derived from the Netherlands and U.K. It can be seen from Table 6 that all top soil heavy metals,with the exception of Ni in the Park,are above the average value for Guangdong province. They also,again with the exception on Ni in the park,exceed the values for samples from Hainan Island,which affords a“clean”baseline data sea for the region. what is also of interest is that if the rations of heavy metal content for roadside sites in Guangzhou are compared to the Hainan data in from of a ratio then ratios of 3.09,1.04,4.16,1.84 and 1.59 are obtained for Cu,Ni,Zi,Pb and Cu respectively. With the exception of the 4.16 for Zn they are not dissimilar to rations of roadside to park top soil reported previously for Guangzhou. This suggests that the roadside to park comparison for soils in Guangzhou may pick up enhancement of heavy metals associated with vehicular traffic. 展开
2009-06-21 09:02:15 266 1
帮忙翻译一下,谢谢
IFRS13willhelpincreasetransparencywhenentitiesusemodelstomeasurefairvalue,particularlywhenusersneedmoreinformationaboutmeasurementuncertainty,suchaswhenthemarketforanasse... IFRS 13 will help increase transparency when entities use models to measure fair value, particularly when users need more information about measurement uncertainty, such as when the market for an asset or a liability has become less active. IFRS 13 requires entities to disclose information about the valuation techniques and inputs used to measure fair value, as well as information about the uncertainty inherent in fair value measurements (which was of particular concern during the global fi nancial crisis). Some of those disclosures, including the fair value hierarchy, were already introduced in March 2009 through an amendment to IFRS 7 Financial Instruments: Disclosures. Those disclosures have been relocated to IFRS 13. The requirements in IFRS 13 also incorporate the guidance in a FASB Staff Position (FSP) issued in April 2009. 展开
2012-04-29 01:58:49 416 6
请高手帮忙翻译一下 3
2.2.1. Physical and physicochemical characterization The particle size distribution of the Ch-zeolite was determined using a laser diffraction equipment (CILASk 1064) and standard wet sieving (Mesh Tylerk series). Scanning electron mic... 2.2.1. Physical and physicochemical characterization The particle size distribution of the Ch-zeolite was determined using a laser diffraction equipment (CILASk 1064) and standard wet sieving (Mesh Tylerk series). Scanning electron microscopy (SEM-PHILIPSk XL20) was used for photomicrographs as well as to analyse the Ch-zeolite composition (Energy Dispersion X-ray, EDX). The sample was initially placed in a vacuum chamber for coating with a thin layer (few nanometers) of gold (Au). The specific surface area of the material was measured by the methylene blue technique and by nitrogen gas adsorption methods, with the latter also providing information about particle porosity. In the methylene blue adsorption method, aqueous solutions (50 ml) of methylene blue (100 mg l 1) were agitated using an orbital shaker (Marconik) for an hour at room temperature in the presence of different quantities of the Ch-zeolite (0.05–0.3 g). The suspensions were then allowed to settle for 23 h and the resulting supernatants were centrifuged at 5000 rpm before the analysis of the residual methylene blue concentration. Results obtained correspond to averaged values of three different experiments. The specific surface area was evaluated by the Langmuir model, assuming the formation, at high concentrations, of a dye monolayer and 1.08 nm2 molecule 1, for the cross-sectional area (Van den Hul and Lyklema, 1968). The Ch-zeolite specific surface area was evaluated by the nitrogen gas adsorption method, using automated equipment (Autosorb 1-Quantachrome Instrumentsk), employing multipoint BET isotherm adsorption data fitting. Also from these data, the porosity of the material was evaluated through parameters such as volume of total pores (d < 206 nm), surface area and volume of micropores (d < 2 nm; Micropore Analysis Method). Zeta potential measurements for the natural and ammonia loaded zeolite, as a function of medium pH, were determined using a Zeta Plusk equipment (Brookhaven Instruments). Suspensions (0.01% v/v) of the Ch-zeolite, previously sieved below 37 Am (400 Mesh Tylerk), in a 10 3 mol l 1 solution of KNO3 were used and the medium pH was controlled with the addition of HNO3 (pH< 7) and KOH (pH>7), separately. For the Ch-zeolite saturated with ammonia, suspensions of the material were prepared by the same procedure, except that the sample was loaded with 100 mg NH3–N l 1 of ammonia. 展开
2018-11-22 17:49:22 242 0
毕业设计外文翻译,高手请进,感激不尽!
ResearchonIntegrationofCoalMineMonitoringandControlSystemwithFieldBusControlSystemAbstract:AccordingtotheconstructionofcurrentcoalminemonitoringandcontrolsystemsinChina,t... Research on Integration of Coal Mine Monitoring and Control System with Field Bus Control System Abstract:According to the construction of current coal mine monitoring and control systems in China,the paper proposes three kinds of applicable schemes of integrating PLC and DCS systems with field bus technology to digitize the system and to improve the flexibility and extent of the system.Essentially,the paper introduces the integration of FCS on I/O layers.Based on a real coal mine safety-monitoring and control system applied with a CAN field bus,the major technology of system relays and extensions is discussed.We believe that one of the most applicable methods is currently replacing the connection between function-stations and field-sensors with a CAN bus on I/O layers for system integration. Key words:monitor and control;field bus control system;CAN;integration 1 Coal Mine Monitoring and Control System and Field Bus Technology As one of the most important methods to improve modern management and production efficiency in coal mines,monitoring and control technology have been widely adopted to maintain safety in coal production.Taking advantage of foreign technologies from the 1980’s,coal mine monitoring and control systems have expanded rapidly in China.At present, automatic control has come into use in most large-scale coal mines,which greatly improved production efficiency and safety and lowered costs. In China,most sub-systems of coal mine systems work independently.They follow a DCS system structure of three layers(center layer,sub-station layer and sensor layer)which consists of a tree to-pology.They are composed of sensors,sub-stations on or under the ground,center stations,multiple controllers and display terminals(Fig.1).They work with analogue signals of 4–20 mA or 200–1000 Hz. Each coupled cable can only act as one line for transmission[1]. Currently control networks have been developed for digitalization and networking.Because traditional analogue signals of 4–20 mA or 200–1000 Hz can only carry simple measurement information and con-trol signals,the communication rate is restricted. Therefore,it is necessary to digitalize and network the entire monitoring and control system. Fig.1 Traditional Structure of Coal Mine Monitoring and Control System 展开
2018-11-22 17:28:40 399 0

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