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您的检索式：作者名="Matthias Hecht"
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| 1 | 电动车尾门电动推杆用低音调齿轮的开发与验证显示文摘高速电动机目前被广泛用于汽车自主驾驶系统。由于高速电动机采用小质量设计,因此为了使转速和输出扭矩达到目标值,通常将渐开线齿轮组和它配套使用。然而,传统的渐开线齿轮在工作中噪声较大,因此一种新型的具有不规则轮齿设计的低音调(Low⁃Tone)齿轮被开发,以减少齿轮传动装置的噪声。通过优化算法,开发设计了一种Low⁃Tone齿轮,并应用于一个驱动电动车尾门启闭的电动推杆系统。之后在该系统运行期间,对使用Low⁃Tone齿轮和使用传统齿轮所产生的声压进行测量对比。结果表明,Low⁃Tone齿轮对于噪声有较好的抑制作用,其优势特别体现在音调特性方面。 | 任亚雄 HECHT Matthias ADAMS Christian MELZ Tobias | 2021 | 同济大学学报(自然科学版)2021，49，S01： | 0 |
| 2 | Cavity-assisted ultrafast long-range periodic energy transfer between plasmonic nanoantennas显示文摘Radiationless energy transfer is at the core of diverse phenomena,such as light harvesting in photosynthesis1,energy-transfer-based microspectroscopies2,nanoscale quantum entanglement3 and photonic-mode hybridization4.Typically,the transfer is efficient only for separations that are much shorter than the diffraction limit.This hampers its application in optical communication and quantum information processing,which require spatially selective addressing.Here,we demonstrate highly efficient radiationless coherent energy transfer over a distance of twice the excitation wavelength by combining localized and delocalized5 plasmonic modes.Analogous to the Tavis–Cummings model,two whispering-gallery-mode antennas6 placed in the foci of an elliptical plasmonic cavity7 fabricated from single-crystal gold plates act as a pair of oscillators coupled to a common cavity mode.Time-resolved two-photon photoemission electron microscopy(TR 2P-PEEM)reveals an ultrafast long-range periodic energy transfer in accordance with the simulations.Our observations open perspectives for the optimization and tailoring of mesoscopic energy transfer and long-range quantum emitter coupling. | Martin Aeschlimann Tobias Brixner Mirko Cinchetti Benjamin Frisch Bert Hecht Matthias Hensen Bernhard Huber Christian Kramer Enno Krauss Thomas H Loeber Walter Pfeiffer Martin Piecuch Philip Thielen | 2017 | Light(Science & Applications)2017，6，1： | 0 |
| 3 | Fully printed origami thermoelectric generators for energy-harvesting显示文摘Energy-harvesting from low-temperature environmental heat via thermoelectric generators(TEG)is a versatile and maintenancefree solution for large-scale waste heat recovery and supplying renewable energy to a growing number of devices in the Internet of Things(IoT)that require an independent wireless power supply.A prerequisite for market competitiveness,however,is the costeffective and scalable manufacturing of these TEGs.Our approach is to print the devices using printable thermoelectric polymers and composite materials.We present a mass-producible potentially low-cost fully screen printed flexible origami TEG.Through a unique two-step folding technique,we produce a mechanically stable 3D cuboidal device from a 2D layout printed on a thin flexible substrate using thermoelectric inks based on PEDOT nanowires and a TiS2:Hexylamine-complex material.We realize a device architecture with a high thermocouple density of 190 per cm2 by using the thin substrate as electrical insulation between the thermoelectric elements resulting in a high-power output of 47.8μWcm^(−2)from a 30 K temperature difference.The device properties are adjustable via the print layout,specifically,the thermal impedance of the TEGs can be tuned over several orders of magnitudes allowing thermal impedance matching to any given heat source.We demonstrate a wireless energy-harvesting application by powering an autonomous weather sensor comprising a Bluetooth module and a power management system. | Andres Georg Rösch AndréGall Silas Aslan Matthias Hecht Leonard Franke MdMofasser Mallick Lara Penth Daniel Bahro Daniel Friderich Uli Lemmer | 2021 | npj Flexible Electronics2021，5，1： | 0 |
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