维普中文期刊产品整合服务
3篇 您的检索式:作者名="L.Rodrigues"
    题名 作者 年代 出处 被引量
1A Long-Range Generalized Predictive Control Algorithm for a DFIG Based Wind Energy System显示文摘This paper presents a new Long-range generalized predictive controller in the synchronous reference frame for a wind energy system doubly-fed induction generator based. This controller uses the state space equations that consider the rotor current and voltage as state and control variables, to execute the predictive control action. Therefore, the model of the plant must be transformed into two discrete transference functions, by means of an auto-regressive moving average model, in order to attain a discrete and decoupled controller, which makes it possible to treat it as two independent single-input single-output systems instead of a magnetic coupled multiple-input multiple-output system. For achieving that, a direct power control strategy is used, based on the past and future rotor currents and voltages estimation. The algorithm evaluates the rotor current predictors for a defined prediction horizon and computes the new rotor voltages that must be injected to controlling the stator active and reactive powers. To evaluate the controller performance, some simulations were made using Matlab/Simulink. Experimental tests were carried out with a small-scale prototype assuming normal operating conditions with constant and variable wind speed profiles. Finally, some conclusions respect to the dynamic performance of this new controller are summarized.J.S.Solis-Chaves Lucas L.Rodrigues C.M.Rocha-Osorio Alfeu J.Sguarezi Filho 2019IEEE/CAA Journal of Automatica Sinica2019,6,5:1
2Wetgrass项目--合成草皮球场的性能及运动员舒适度的重要一步显示文摘葡萄牙纺织和服装工业技术中心(CITEVE)长期以来一直从事产业用和功能性纺织品领域的研究。CITEVE参与的Wetgrass项目旨在开发一种新的足球场合成草皮系统,以避免草坪在炎热的晴天过热,减少球员滑倒时对皮肤的磨损影响,主要目标是在提高球员的舒适度和安全性的情况下,不影响运动表现和球的正常行为。Wetgrass项目由国家创新局(ANI)和指定的2家葡萄牙公司——Safina公司(葡萄牙合成草坪制造和品牌公司)、Exporplás公司(葡萄牙单丝生产和品牌公司)共同资助,2个STC实体单位、纳米技术和智能材料中心(CeNTI)及CITEVE为项目合作人。L.Rodrigues H.Rosendo S.Silva N.Durāes B.Moura R.Silva A.Moreira 沈嘉豪(译) 王依民(校) 2017国际纺织导报2017,45,4:0
3Physics, chemistry, and Hirshfeld surface analyses of gamma-irradiated thalidomide to evaluate behavior under sterilization doses显示文摘Thalidomide was indicated as a sedative and antiemetic and prescribed for pregnant women. Its tragic teratogenic effects culminated in withdrawal from the market. Since the discovery of its anti-angiogenic and anti-inflammatory actions, thalidomide has been used in the treatment of leprosy and multiple myeloma,which justify studies of its stability. We investigated the effects of irradiation of thalidomide up to 100 k Gy(fourfold the usual sterilizing dose for pharmaceutics). The β polymorph of thalidomide was obtained in an isothermal experiment at 270 °C. All samples underwent gamma irradiation for specific times. At different doses, decomposition of the pharmaceutical was not observed up to 100 k Gy. The observed effect was angle turning between the phthalimide and glutarimide rings modulated by repulsion towards the carbonyl group,leading to a stable energetic configuration, as measured by the equilibrium in the torsion angle after irradiation. The thalidomide molecule has a center of symmetry, so a full turn starting from 57.3° will lead to an identical molecule. Further irradiation will start the process again. Samples irradiated at 30 and 100 k Gy have more compact unit cells and a lower volume, which leads to an increase in the intermolecular hydrogen interaction within the unit cell, resulting in higher thermal stability for polymorph α.Valner A.F.S.N.Mussel Max R Ferreira Maria B.E Marques Maria I.Yoshida Mariana R.Almeida Bernardo L.Rodrigues Wagner N.Mussel 2018Journal of Pharmaceutical Analysis2018,8,3:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费