Nijhof
Egbert Nijhof, Westdorpe NL
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20120252990 | Polymerization Process to Make Low Density Polyethylene - A high pressure polymerization process to form an ethylene-based polymer comprises the steps of: A. Injecting a first feed comprising ethylene and optionally a chain transfer agent system (CTA system) into a first autoclave reactor zone operating at polymerization conditions to produce a first zone reaction product, the CTA system of the first reactor zone having a transfer activity Z1; and B. (1) Transferring at least part of the first zone reaction product to a second reactor zone selected from a second autoclave reactor zone or a tubular reactor zone and operating at polymerization conditions, and, optionally, (2) freshly injecting a second feed into the second reactor zone to produce a second zone reaction product, with the proviso that the second reactor zone contains a CTA system having a transfer activity Z2; and with the proviso that the ratio of Z1/Z2 is less than 1. | 10-04-2012 |
20140303309 | Polymerization Process to Make Low Density Polyethylene - A high pressure polymerization process to form an ethylene-based polymer comprises the steps of: | 10-09-2014 |
Engbert Nijhof, Eindhoven NL
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20090115341 | LAMP DRIVING CIRCUIT - In a lamp driving circuit for operating a high intensity discharge lamp, an a commutation circuit comprises at least two switching devices. The switching devices are alternately switched active at a commutation frequency. The active switching device switches at a switching frequency. During an ignition mode, the switching frequency and the commutation frequency are substantially equal. A resulting commutation voltage is supplied to an inverter resonant circuit for generating a supply current. At a node of the inverter resonant circuit, a clamping circuit limits the generated voltage to a predetermined maximum voltage. The voltage at said node of the inverter resonant circuit is applied to an output resonant circuit. The output resonant circuit operates in the ignition mode as a resonator for generating a high ignition voltage; in a steady state operation mode, the output resonant circuit operates as a low-pass filter for reducing a high frequency current component in a lamp current. | 05-07-2009 |
Engbert Bernard Gerard Nijhof, Eindhoven NL
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20090134878 | METHOD AND SYSTEM FOR OPERATING A DISCHARGE LAMP SUCH AS TO DETECT DEFECTIVE OPERATION OF THE LAMP - A method is described for detecting defective operation of a discharge lamp ( | 05-28-2009 |
20090267528 | LAMP DRIVING CIRCUIT - A lamp driving circuit ( | 10-29-2009 |
20100026189 | LAMP DRIVING CIRCUIT, AND DETECTION CIRCUIT FOR DETECTING AN END-OF-LIFE CONDITION - A lamp driving circuit ( | 02-04-2010 |
20100060184 | METHOD AND SYSTEM FOR OPERATING A GAS DISCHARGE LAMP - In an application of a gas discharge lamp (La) arranged at a relatively large distance from its driving lamp driver circuit, parasitic capacitances (C | 03-11-2010 |
Inger S Nijhof, Utrecht NL
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20160067205 | Combination Therapies with Anti-CD38 Antibodies - The present invention relates to combination therapies with anti-CD38 antibodies and all-trans retinoic acid. | 03-10-2016 |
Jeroen Nijhof, Genova IT
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20150304035 | METHOD OF OPTIMIZING OPTICAL SIGNAL QUALITY IN AN OPTICAL COMMUNICATIONS LINK, OPTICAL NETWORK ELEMENT AND OPTICAL COMMUNICATIONS LINK - A method of optimizing optical signal quality in an optical communications link comprising a plurality of sections each comprising an optical amplification apparatus and an optical fibre span, the method comprising: for each section, determining a respective optimal optical channel power which minimizes a sum of an indication of a respective linear optical noise and an indication of a respective nonlinear optical noise; and generating and transmitting at least one control signal arranged to cause a target optical channel power of each section to be set to the respective optimal optical channel power. | 10-22-2015 |
20150341117 | METHOD OF CONFIGURING AN OPTICAL COMMUNICATION NETWORK CONFIGURED FOR CO-PROPAGATING RAMAN AMPLIFICATION AND AN OPTICAL COMMUNICATION NETWORK ELEMENT - A method includes: selecting an optical pump signal power of a Raman amplifier such that a saturated gain of the Raman amplifier is at a maximum operating level without exceeding a gain threshold above which an optical signal to noise ratio penalty is no longer negligible in the Raman amplifier; selecting an optical signal power for at least one optical communication signal to be transmitted across the optical link to maximise a Q-factor of the optical signal when the Raman amplifier is configured for said maximum operating level of the saturated gain; generating a pump signal power control signal to cause an optical pump signal source of the Raman amplifier to generate an optical pump signal having the selected optical pump signal power; and generating a signal power control signal configured to cause the optical communication signal to be delivered into the optical link at the selected optical signal power. | 11-26-2015 |
Niels Nijhof, Eindhoven NL
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20110013816 | RESPIRATION DETERMINATION APPARATUS - The present invention relates to a respiration determination apparatus and method for determining respiration of a person ( | 01-20-2011 |
20110026666 | OBJECT LOCALIZATION IN X-RAY IMAGES - An x-ray system ( | 02-03-2011 |
20150038862 | SYSTEM FOR PROVIDING AN ELECTRICAL ACTIVITY MAP - The invention relates to a system for providing an electrical cardiac activity map by means of electrical signals acquired by a plurality of surface electrodes on an outer surface of a living being ( | 02-05-2015 |
Niels Nijhof, Utrecht NL
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20140148677 | SYSTEM FOR PROVIDING AN ELECTRICAL ACTIVITY MAP USING OPTICAL SHAPE SENSING - The invention relates to a system ( | 05-29-2014 |
20150302634 | REAL-TIME SCENE-MODELING COMBINING 3D ULTRASOUND AND 2D X-RAY IMAGERY - An apparatus for visualizing image material in a multimodal imaging environment. Images (XF, USV) from an X-ray imager ( | 10-22-2015 |