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    题名 作者 年代 出处 被引量
1切削加工系统的稳定性分析显示文摘本文根据一台数控车床的实际加工过程,建立了切削系统的动力学模型,并导出了切削过程闭环系统的传递函数。这一动力学模型,概括了再生型颤振和振型耦合颤振原理。稳定性分析所用的结构传递函数和动态切削力系数,是根据切削系统解耦的条件,在切削过程中辩识和测量得到的。稳定性分析得到的极限切削宽度值与切削颤振试驻的实验值,可良好地吻合。稳定性极限值的大小与左刃或者右刃切削方式,走刀量以及切削速度等因素有关。文中建立的切削过程动力学模型和稳定性分析方法,可用于预测加工过程的稳定性。徐燕申 Minis I.E. Magrab E.B. 1990振动工程学报1990,3,1:5
2Synthesis of highly fluorescent carbon dots from lemon and onion juices for determination of riboflavin in multivitamin/mineral supplements显示文摘In this work, lemon and onion biomasses commonly found in street markets are for the first time used to develop a facile, fast and low-cost one-step microwave-assisted carbonization method for synthesis of highly fluorescent carbon dots (CDs). The structure and optical properties of CDs were investigated by TEM, XRD, XRF, UV-Vis, FTIR, and fluorescence spectroscopy. CDs displayed satisfactory optical pro-prieties, a high quantum yield of 23.6%, and excellent water solubility, and the particle size was 4.23-8.22 nm with an average diameter of 6.15 nm. An efficient fluorescent resonance energy transfer (FRET) between the CDs and riboflavin was achieved with CDs acting as donor and riboflavin as acceptor. A linear relationship between FRET and the riboflavin concentration from 0.10 to 3.0 μg/mL was observed, allowing the development of an accurate and fast analytical method to determine this vitamin in multivitamin/mineral supplements. Despite the potential interferences in these supplements, CDs were selective for riboflavin under optimized conditions. A paired t-test at a 95% confidence level indicated no statistically significant difference between the proposed and the reference methods. Recovery test presented values ranged from 96.0% to 101.4%. The limit of detection and relative standard deviation were estimated at 1.0 ng/mL and <2.6% (n = 3), respectively. CDs were successfully synthesized in a domestic microwave oven (1450 W, 6 min), presenting satisfactory parameters when compared with results of other studies reported in the literature, suggesting that the proposed method is a potentially useful method for the synthesis of CDs and determination of riboflavin.Severino S. Monte-Filho Stefani I.E. Andrade Marcelo B. Lima Mario C.U. Araujo 2019Journal of Pharmaceutical Analysis2019,9,3:4
3肺静脉的常规处理及无缝合技术处理:适应证从修复术后肺静脉狭窄到早期肺静脉异常的演变Coles J.G. Konstantinov I.E. 刘少伟 2005世界核心医学期刊文摘(心脏病学分册)2005,0,6:3
4HITEMP, the high-temperature molecular spectroscopic database显示文摘L.S. Rothman I.E. Gordon R.J. Barber H. Dothe R.R. Gamache A. Goldman V.I. Perevalov S.A. Tashkun J. Tennyson 2010Journal of Quantitative Spectroscopy and Radiative Transfer2010,,15:2
5The HITRAN 2008 molecular spectroscopic database显示文摘L.S. Rothman I.E. Gordon A. Barbe D.Chris Benner P.F. Bernath M. Birk V. Boudon L.R. Brown A. Campargue J.-P. Champion K. Chance L.H. Coudert V. Dana V.M. Devi S. Fally J.-M. Flaud R.R. Gamache A. Goldman D. Jacquemart I. Kleiner N. Lacome W.J. Lafferty J 2009Journal of Quantitative Spectroscopy and Radiative Transfer2009,,9:2
6Microbiological, biochemical and biogenic amine profiles of Terrincho cheese manufactured in several dairy farms显示文摘Ana I.E. Pintado Olívia Pinho Isabel M.P.L.V.O. Ferreira M. Manuela E. Pintado Ana M.P. Gomes F.X. Malcata 2008International Dairy Journal2008,,6:1
7尼日利亚的水电资源和开发计划显示文摘尼日利亚电力部门面临着许多挑战:供电不稳定,只有不到40%的居民可享受正常的供电。目前还在进行的各种改革旨在改善这种情况,电力对于满足今后的需求将起着十分重要的作用。介绍了拟进行开发的水电工程。I.E.埃克波 刘洪斌(译) 刘忆瑛(校) 2006水利水电快报2006,27,9:1
8尼日利亚电力行业存在的问题和发展前景显示文摘简要回顾了尼日利亚电力行业近期的发展历史,重点在于寻求改善能源供应的方法。水电开发将为满足该国未来的水与能源需求发挥关键作用。I.E.埃克波 马元珽 2008水利水电快报2008,29,9:1
9A Lagrangean decomposition approach for oil supply chain investment planning under uncertainty with risk considerations显示文摘F. Oliveira V. Gupta S. Hamacher I.E. Grossmann 2012Computers and Chemical Engineering2012,,:1
10Experimental Subendocardial Ischemia in Dogs with Normal Coronary Arteries显示文摘GERALD D. BUCKBERG DAVID E. FIXLER JOSEPH P. ARCHIE JULIEN I.E. HOFFMAN 1972Circulation Research1972,,1:1
11TO BE OR NOT TO BE A LIVING DONOR: Questionnaire to Parents of Children Who Have Undergone Renal Transplantation1显示文摘Helena M.E. K?rrfelt Ulla B. Berg Frank I.E. Lindblad Gunnar E. Tydén 1998Transplantation1998,,7:1
12Updated database plus software for line-mixing in CO 2 infrared spectra and their test using laboratory spectra in the 1.5–2.3<ce:hsp sp='0.16'/>μm region显示文摘J. Lamouroux H. Tran A.L. Laraia R.R. Gamache L.S. Rothman I.E. Gordon J.-M. Hartmann 2010Journal of Quantitative Spectroscopy and Radiative Transfer2010,,15:1
13Catalytic effect of halide additives ball milled with magnesium hydride显示文摘I.E. Malka T. Czujko J. Bystrzycki 2009International Journal of Hydrogen Energy2009,,:1
14Direct fit of experimental ro-vibrational intensities to the dipole moment function: Application to HCl显示文摘G. Li I.E. Gordon P.F. Bernath L.S Rothman 2011Journal of Quantitative Spectroscopy and Radiative Transfer2011,,:1
15Physiological Basis of Clinically Used Coronary Hemodynamic Indices显示文摘Jos A.E. Spaan Jan J. Piek Julien I.E. Hoffman Maria Siebes 2006Circulation2006,,3:1
16SPECT3D – A multi-dimensional collisional-radiative code for generating diagnostic signatures based on hydrodynamics and PIC simulation output显示文摘J.J. MacFarlane I.E. Golovkin P. Wang P.R. Woodruff N.A. Pereyra 2007High Energy Density Physics2007,,1:1
17切削过程传递函数辨识的新方法显示文摘本文提出一种切削过程传递函数辨识的新方法,即用输入脉冲响应位移使切削过程传递函数从切削系统中解耦来测量内调制动态切削力系数.讨论了提高测量信噪比的可行方法,用指数窗函数压缩切削力测量中的噪声,其带来的误差是可以忽略的.最后示出了不同切削参数下动态切削力系数的测量值,并进行了简要的讨论.徐燕申 Minis I.E. Magrab E.B. 1991振动工程学报1991,4,1:1
18Effect of microstructure and non-metallic inclusions on the impact properties of flux-cored weld metals显示文摘G.O. Schumann I.E. French 1997Scripta Materialia1997,,12:1
19Chitinase and β-1,3-glucanase enzymatic activities in response to infection by Alternaria alternata evaluated in two stages of development in different tomato fruit varieties显示文摘I.E. Cota R. Troncoso-Rojas R. Sotelo-Mundo A. Sánchez-Estrada M.E. Tiznado-Hernández 2007Scientia Horticulturae2007,,1:1
20Role of Acquired and Hereditary Thrombotic Risk Factors in Colon Ischemia of Ambulatory Patients显示文摘I.E. Koutroubakis A. Sfiridaki A. Theodoropoulou E.A. Kouroumalis 2001Gastroenterology2001,,3:1
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