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  • The effect of geometry variants on the performance of

    2021-4-2u2002·u2002The aerodynamic performance of the vertical axis wind turbines (VAWTs) is poor in both the high and low ranges ωR/V1 with the reason being different in both cases. 1–6 1. B. F. Blackwell, The Vertical-Axis Wind Turbine 'How It Works' (Sandia Laboratories, Albuquerque, NM, 1974). 2.

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  • Perspective on photovoltaic optical power converters ...

    2021-10-27u2002·u2002As an example of shorter wavelength OPCs, Fig. 13 shows the performance of InGaP single-junction devices for optical input powers between 100 and 500 mW. A good efficiency of 59.7% is obtained at the lower input powers and up to 415 mW of output power is obtained at an input power of 1 …

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  • Straight-Bladed Vertical Axis Wind Turbines: History ...

    2019-3-1u2002·u2002Wind turbine is a kind of rotating machinery. Although the horizontal axis wind turbine (HAWT) is the most popular wind turbine, the vertical axis wind turbine (VAWT) with the main advantages of smart design, novel structure, and wind direction independence receives more and more attention in small-scale wind power market. The straight-bladed VAWT (SB-VAWT) is one of the most researched and ...

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  • AXIS Q1785-LE Network Camera

    2021-11-29u2002·u2002AXIS Q1785-LE Network Camera is a tough, top-of-the-line camera with outstanding 32x optical zoom. It's an all-integrated camera that's all set to take on just about any challenge, indoors or out.

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  • What's Behind that Mirror - Leading Optical Publication

    2021-3-10u2002·u2002optical performance by reducing acuity and useable clear fields of view. The further the eye rotates away from the lens optical center, the greater the oblique aberration. Whether from an off-axis gaze angle or lens tilt angle relative to the line of sight, a significant angle is formed between the lens optical axis and the patient's line of sight.

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  • Non-intrusive torque measurement for rotating shafts

    2018-5-10u2002·u2002Non-intrusive, reliable and precise torque measurement is critical to dynamic performance monitoring, control and condition monitoring of rotating mechanical systems. This paper presents a novel, contactless torque measurement system consisting of two shaft-mounted zebra tapes and two optical sensors mounted on stationary rigid supports.

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  • WORLD-BEAM® QS18 Clear Object Detection Datasheet

    2019-6-13u2002·u2002The Banner QS18 sensor is a high performance clear object detection sensor. The polarized coaxial optical design ensures reliable detection of transparent, translucent, and opaque targets at any distance between the sensor and the reflector. Low contrast sensing applications include PET bottles, glass containers, and transparent films.

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  • Electrically tunable lenses, Beam steering, Laser speckle ...

    2020-8-19u2002·u2002With a focus tuning range of -2.0 to +2.0 diopters the spot can be controlled over a large range along the z-axis (working distance change of up to 180mm). Our proprietary built-in optical feedback mechanism allows for a long term repeatability of 0.02 diopters. The EL-10-42-OF is optimized for the use at 1064nm and 532nm. Applications

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  • (PDF) Sımple Method For The Determınatıon of Band Gap

    The band gap can be obtained by extending the straight line from the straight segment of the graph touching the E axis, the band gap of the sample was found to have decreasing values of 3.24, 3.21 ...

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  • Best gaming mouse 2021

    2021-11-30u2002·u2002Oh, and if that wasn't enough of a recommendation to go and bag this mouse, then the Razer DeathAdder V2 has also won the Best Gaming Mouse …

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