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US7769490B2 - Robotic vacuum cleaner - Google Patents

US7769490B2 US12/181,869 US18186908A US7769490B2 US 7769490 B2 US7769490 B2 US 7769490B2 US 18186908 A US18186908 A US 18186908A US 7769490 B2 US7769490 B2 US 7769490B2 Authority US United States Prior art keywords typically control nozzle drive sensors Prior art date 2001-09-26 Legal status (The legal status is an assumption and is not a legal conclusion.

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2002 NASA SBIR & STTR Abstract Archives

Implementation of the technique and inducer transfer function identification will occur in Phase II. The proposed dynamic transfer function characterization methodology is applicable to any high energy density turbomachine subject to impeller induced flow instabilities, such as boiler feed pumps or re-injection pumps and compressors.

Stanford University

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Wearable systems with thermal imaging capabilities may be provided for detecting the presence and location of persons or animals in an environment surrounding the system in accordance with an embodiment. A wearable system may include a wearable structure such as a helmet with a plurality of imaging modules mounted to the wearable structure.

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On the other hand, the residual polarization of piezoceramics can never achieve the very high efficiency in the entire volume of the ceramic that is evident in single-domain single-crystal ferroelectric materials . Single-crystal ferroelectric materials are often applied in frequency-stabilized oscillators and surface acoustic devices [3,92,93].

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With the increasing growth of the algae industry and the development of algae biorefinery, there is a growing need for high-value applications of algae-extracted biopolymers. The utilization of such biopolymers in the biomedical field can be considered as one of the most attractive applications but is challenging to implement. Historically, polysaccharides extracted from seaweed have been used ...

Polymer/layered silicate (clay) nanocomposites: An ...

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Under Phase I, they will determine the necessary betatron design parameters including the electromagnet dimensions, the pole shapes, pole gap, and the optimum placement of the electron gun for injection. They will utilize computer programs recently developed by them for the Department of Energy for high repetition-rate betatrons.

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Hydro-entanglement is a versatile process for bonding non-woven fabrics by the use of fine, closely-spaced, high-velocity jets of water to rearrange and entangle loose arrays of fibres.

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LTECH MACHINE CORPORATION (Formerly: JP Hi-Tech Machine Corporation) ... i.e., manufacture/assembly of healthcare and wellness products, such as grab rails, shower seats, water and energy saving shower kits for the aged and disabled, energy saving plumbing valves, spill containment kits, and production of PET/PVC clam packaging and various ...

Polymers | March 2019 - Browse Articles - MDPI

The best-performing polymer solar cells provided a high open-circuit voltage of 0.9 V, an efficient fill factor of around 70%, and a highest power conversion efficiency (PCE) of over 6% with the use of the eco-friendlier o-xylene/MN solvent systems.

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Simon Picaud-Vannereux, Florence Lutin, Eric Favre, Denis Roizard. Energy efficiency of membrane vs hybrid membrane/cryogenic processes for propane recovery from nitrogen purging vents: A simulation study. Separation and Purification Technology, Elsevier, 2020, 240, pp.116613. 10.1016/j.seppur.2020.116613 . hal-02535809 Accès au bibtex

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The project focuses on developing new energy-saving electric vehicles, forming the finished Automobile partss for the new energy-saving electric vehicle, achieving the relevant industrial cluster, and developing the new energy-saving electric car manufacturing chain, and driving the development of associated support industries.

waste plastic oil: Topics by Science.gov

May 01, 2018 · For this purpose 1 l volume, energy efficient batch reactor was manufactured locally and tested for pyrolysis of waste plastic. The feedstock for reactor was 50 g waste polyethylene. The average yield of the pyrolytic oil , wax, pyrogas and char from pyrolysis of PW were 48.6, 40.7, 10.1 and 0.6%, respectively, at 275 degrees C with non ...

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A schematic diagram of an injection molding machine and the major steps of injection molding procedure is shown in Figure 7a . It can be seen that an injection molding machine is composed primarily of an injection unit and clamping unit. Briefly speaking, a single complete cycle of injection molding process can be divided into five steps . In ...

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thin glass tubes: Topics by Science.gov

Jun 01, 2018 · Energy-efficient modification of reduction-melting for lead recovery from cathode ray tube funnel glass. SciTech Connect. Okada, Takashi, E-mail: [email protected]; Yonezawa, Susumu. 2013-08-15. Highlights: • We recovered Pb from cathode ray tube funnel glass using reduction melting process. • We modified the melting process to achieve ...

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Kumar Mahendra S, Prakash Senthil K, Chandrasekaran V, Sasikala R, Stable and energy efficient routing for mobile ad-hoc networks using backbone nodes, INTERNATIONAL JOURNAL OF ADVANCED RESEARCH IN COMPUTER SCIENCE, 3(2), 303-308, 2012; Ashwani K, Gupta P, Chauhan R, Power Aware Routing in Ad Hoc Networks, Transactions on Internet Research, 1(2 ...

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EM [email protected] FU U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy; Argonne National Laboratory, a U.S. Department of Energy Office of Science laboratory [DE-AC02-06CH11357] FX This work was supported by the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy, Fuel Cell Technologies Program.

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The calculated free energy ratios for the Pb/Al (100) and {111} interfaces are in good agreement with recent high resolution transmission electron microscopy measurements performed in the range 500 K T 600 K. The simulations indicate a strong temperature dependence of the free energy ratios, from 1.10 at T = 500 K to 1.31 at T = 0 K. Comparison ...

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Maglev - Term Paper

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1. An inkjet drop ejection apparatus comprising: a wafer substrate having a front side and a back side opposite the front side; an array of ink ejection nozzles formed on the front side by lithographic etching and deposition techniques; and, a plurality elongate ink feed channels etched from the back side for supplying ink to the nozzles.

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Electric Power Security and High Efficiency Key Lab., Huazhong University of Science and Technology, Wuhan 430074, China Diangong Jishu Xuebao/Transactions of China Electrotechnical Society 204-209 Comprehensive revisions on fault-location algorithm suitable for dedicated passenger line of high-speed electrified railway

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