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公开(公告)号：US20230079842A1
公开(公告)日：2023-03-16
申请号：US17942507
申请日：2022-09-12
摘要： Fast-ejection safety systems for hotwire cutters are provided. The safety system comprises a microcontroller, a wire shield, a servo motor and a servo motor arm. The safety system further comprises one or more ultrasonic sensors, a power source, and a safety system casing.
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12.发明申请公开(公告)号：US20220363970A1
公开(公告)日：2022-11-17
申请号：US17631335
申请日：2020-07-29
发明人： Ahmed Hamza , Ibnelwaleed Ali Hussein , Mohamed Shamlooh , Mustafa Nasser , Musaab Magzoub , Saeed Salehi
IPC分类号： C09K8/035 , C08J3/11 , E21B21/00 , E21B33/138
摘要： A gel material for oil and gas conformance control operations is provided. The gel material includes a plurality of gel material components including polyacrylamide, triamine silica, and nanosilica which are added in suitable amounts to form the gel material under a gel formation condition. The present technology replaces and/or supplements conventional crosslinkers and provides enhanced polymeric gels, such as, for oil and gas field applications including wellbore strengthening, loss circulation materials, and water shut-off applications, at high temperatures. The present technology is compatible with fresh and high salinity water.
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13.发明申请公开(公告)号：US20220212175A1
公开(公告)日：2022-07-07
申请号：US17568657
申请日：2022-01-04
申请人： QATAR UNIVERSITY
发明人： Sardar ALI , Dharmesh KUMAR , Ahmed GAMAL , Mahmoud M. KHADER , Muftah EL-NAAS
摘要： Provided herein is a novel silica-supported nickel nanocomposite and a novel one-pot solution combustion synthesis of that nanocomposite. The method allows the synthesis of small size nickel nanoparticles (e.g., 3 nm to 40 nm) for which a considerable percentage of nickel is inserted into silica, experiencing strong metal-support interaction. These exceptional physicochemical properties make them desirable for various industrial applications, such as electronic, heterogeneous catalysis as well as conversion and storage of energy.
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14.发明申请公开(公告)号：US20220202519A1
公开(公告)日：2022-06-30
申请号：US17609551
申请日：2019-05-09
申请人： QATAR FOUNDATION , QATAR UNIVERSITY
发明人： John-John CABIBIHAN , Kishor Kumar SADASIVUNI , Anas TAHIR , Julien ABINAHED , Nikhil NAVKAR , Abdulla AL-ANSARI
摘要： A tactile sensor, a surgical instrument, and a method of making the tactile sensor are provided. In one embodiment, a tactile sensor includes a first electrode, a second electrode, and an intermediate layer between the first electrode and the second electrode. The intermediate layer includes a polyurethane-zinc oxide nanocomposite. Further, one or both of the first and second electrodes may include a silver conductive paste.
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公开(公告)号：US20220119576A1
公开(公告)日：2022-04-21
申请号：US17076491
申请日：2020-10-21
申请人： QATAR UNIVERSITY
IPC分类号： C08G8/22 , C01B32/318
摘要： In certain aspects and embodiments, the present invention provides a radiolytic polymerization/gelation method for the synthesis of gels and their subsequent activated carbon derivatives. In certain exemplary embodiments, resorcinol-formaldehyde gels are produced from resorcinol and formaldehyde without additives, catalysts, buffers, initiators or other species. In certain embodiments, ionizing γ-type radiation from 60Co is used as a radiation source in the gel crosslinking process. Different compositions of resorcinol/formaldehyde and a wide range of irradiation doses were examined. Various techniques are used to characterize the outcome product, either the gels or their derived carbon gels or activated carbon.
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公开(公告)号：US11299395B2
公开(公告)日：2022-04-12
申请号：US16846020
申请日：2020-04-10
申请人： QATAR UNIVERSITY
摘要： In some aspects and embodiments, the present application provides a wide range of porous 1-D polymeric graphitic carbon-nitride materials that are atomically doped with binary metals in different morphologies. In some embodiments, the graphitic carbon-nitride materials can be prepared with high mass production from inexpensive and natural abundant precursors. In some embodiments, the materials were used successfully for the oxidation of CO to CO2 under ambient reaction temperature in addition to the reduction of CO2 into hydrocarbons. In some embodiments, the materials can be used for practical and large-scale gas conversion for household or industrial applications.
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公开(公告)号：US20210113771A1
公开(公告)日：2021-04-22
申请号：US16756780
申请日：2019-05-29
申请人： QATAR UNIVERSITY
发明人： Sami ALKHATIB , Faris TARLOCHAN
摘要： To prevent accidental needle stick injuries, a syringe has a plunger configured to pull the syringe into the syringe barrel after clinical use. The syringe has an additional safety feature that restricts subsequent movement of the plunger. After the needle has been retracted in its entirety within the barrel of the syringe, movement of the plunger is restricted by a two-part locking mechanism, a notch on the plunger and a T-shaped slot on the barrel with a one-way catch section to prevent the needle tip from being pushed accidentally through the barrel wall.
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公开(公告)号：US20210112116A1
公开(公告)日：2021-04-15
申请号：US17069067
申请日：2020-10-13
发明人： Emna Baccour , Fatima Haouari , Aiman Erbad , Amr Mohamed , Mohsen Guizani
摘要： The present disclosure provides a system and methods for determining and reserving an optimized amount of required cloud instance resources in order to provide quality streaming to viewers while also reducing overhead costs. For content providers, the choice of appropriate cloud location to transcode the live streams and appropriate number of video representations to serve the current viewership is a key in minimizing cost. However, this task cannot typically be done on the fly due to the properties of live streaming characterized by its dynamic, heterogeneity and wideness. The provided system helps predict the incoming load and the exact number of resources to allocate at each cloud site to help prevent the content provider from over-provisioning resources, leading to an extra cost, or under-provisioning resources, leading to viewers' dissatisfaction.
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公开(公告)号：US10794965B2
公开(公告)日：2020-10-06
申请号：US16383167
申请日：2019-04-12
发明人： Ahmed Gaouda , Khaled Bashir Shaban , Magdy Salama , Atef Abdrabou , Ramadan Elshatshat , Mutaz Mohamed Elhassan Elsawi Khairalla , Ahmed Abdrabou
摘要： Certain embodiments may generally relate to a smart fault detection device for power grids, and a method of fault detection for power grids. A method may include receiving raw data samples of currents in grounding conductors and line conductors. The method may also include processing the raw data samples under at least one of a plurality of system operating modes. The method may also include monitoring normal operation and anticipating an impending fault while operating under at least one of the system operating modes. The method may further include extracting fault information based on the monitoring. The method may also include reporting the fault information to a supervisory control and data acquisition system human-machine interface. The method may further include anticipating faults based on an analysis of the raw data samples.
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公开(公告)号：US20200236911A1
公开(公告)日：2020-07-30
申请号：US16256982
申请日：2019-01-24
申请人： QATAR UNIVERSITY
摘要： Embodiments of the present invention are directed to articles used as an artificial reef and/or used as a part of an artificial reef, methods of making the articles, methods of using the articles, and methods of forming artificial reefs. The articles include a top, at least one support member, and optionally, a base. In some embodiments, the water permeability of the top of the article is greater (and in some embodiments, at least 10% greater) than the water permeability of the support, the water permeability of the optional base, or both. In preferred embodiments, the top, support(s), and optional base are formed of concrete.
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