排序方式: 共有32条查询结果,搜索用时 15 毫秒
1.
Saponara S. Fanucci L. Marsi S. Ramponi G. Kammler D. Witte E.M. 《Circuits and Systems II: Express Briefs, IEEE Transactions on》2007,54(7):596-600
This brief presents an application-specific instruction-set processor (ASIP) for real-time Retinex image and video filtering. Design optimizations are addressed at algorithmic and architectural levels, the latter including a dedicated memory structure, an adapted pipeline, bypasses, a custom address generator and special looping structures. Synthesized in CMOS technology, the ASIP stands for its better energy-flexibility tradeoff versus reference ASIC and digital signal processing Retinex implementations. 相似文献
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M. Kammler 《Materialwissenschaft und Werkstofftechnik》2006,37(5):396-401
Investigations to determine the bending strength of bonded grinding materials Apart from the process characteristics, the safeness of grinding wheels against the breakage caused by centrifugal forces is of special interest. The calculation of the bursting speed of grinding wheels based on experimentally determined bending strengths deviates significantly from measured bursting speeds. This is because of the incorrect determination of the bending strength based on BGG 931. By taking into account the plane stress conditions in the area of applied load, an improved approach to determine the bending strength of bonded grinding materials was developed. 相似文献
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Beaucage G Kammler HK Mueller R Strobel R Agashe N Pratsinis SE Narayanan T 《Nature materials》2004,3(6):370-374
Flame synthesis is one of the most versatile and promising technologies for large-scale production of nanoscale materials. Pyrolysis has recently been shown to be a useful route for the production of single-walled nanotubes, quantum dots and a wide variety of nanostructured ceramic oxides for catalysis and electrochemical applications. An understanding of the mechanisms of nanostructural growth in flames has been hampered by a lack of direct observations of particle growth, owing to high temperatures (2,000 K), rapid kinetics (submillisecond scale), dilute growth conditions (10(-6) volume fraction) and optical emission of synthetic flames. Here we report the first successful in situ study of nanoparticle growth in a flame using synchrotron X-ray scattering. The results indicate that simple growth models, first derived for colloidal synthesis, can be used to facilitate our understanding of flame synthesis. Further, the results indicate the feasibility of studies of nanometre-scale aerosols of toxicological and environmental concern. 相似文献
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In this work, a possible way to enhance the epitaxial growth of metastable, tensile strained SixC1 − x layers by the addition of germanium is demonstrated. During ultra-high vacuum chemical vapor deposition growth, the co-mixing of germane to the SixC1 − x precursors was found to enhance the growth rate by a factor of ~ 3 compared to the growth of pure SixC1 − x. Furthermore, an increase of the amount of substitutional incorporated carbon has been observed. Selective SixGeyC1 − x − y deposition processes utilizing a cyclic deposition were developed to integrate epitaxial tensile strained layers into source and drain areas of n-channel transistors. 相似文献
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Grinding tools like one side recessed grinding wheels are used in many machining applications and must provide a high reliability
against fracture concerning safety-relevant and economic aspects. The calculation of the bursting speed on the basis of the
mechanical properties is an important tool for the design of grinding wheels. However, no equation is available to estimate
the bursting speed of these types of grinding tools so far. For the calculation of the bursting speed of one side recessed
grinding wheels a parametric study using FEA was carried out. The results of these investigations provide the basis for a
geometric function, which allows in association with a newly-developed fracture criteria to calculate the bursting speed of
one side recessed grinding wheels. For the validation of the developed concept spin burst tests with grinding wheels of eight
different geometries and two granulations were carried out. The results of these investigations show a very good correlation
of the calculated and measured bursting speeds for all tested types of grinding wheels. 相似文献
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Heinbach Christoph Beinke Jan Kammler Friedemann Thomas Oliver 《Electronic Markets》2022,32(2):807-828
Electronic Markets - The omnipresence of digital platforms (DPs) across industries yields platform-based business concepts that disrupt the road freight market, enabling the digitalization of road... 相似文献
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Carsten Reichel Joerg SchoenekessStephan Kronholz Gunda BeerninkAnnekathrin Zeun Andreas DietelThorsten Kammler 《Thin solid films》2012,520(8):3170-3174
GLOBALFOUNDRIES 32 nm high-k metal gate technology, with SiGe channel for VT control of P-field effect transistor, is taken into production. This epitaxial channel material is being introduced into high volume manufacturing in complementary metal oxide semiconductor technology. The morphology of the SiGe channel (cSiGe) for narrow width transistors is carefully controlled by process conditions such as epitaxial growth temperature, pre bake condition or in-situ Si recess prior epitaxial deposition. A micro loading effect observed in 28 nm technology was eliminated by an in-situ recess of the silicon before epitaxial deposition. Due to the significant cost of this process step, an epitaxial batch system has been evaluated to reduce the cost of ownership dramatically. Also the cSiGe process has been optimized to minimize the thickness variation of the SiGe channel due to the strong response of VT to cSiGe thickness. 相似文献
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