Patents Assigned to North Dakota State University
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Publication number: 20200318862Abstract: Standalone and self-contained cooling systems using compressed liquid and/or gas CO2 containers positioned in an insulated or non-insulated vessel encompassing a container which is either vertically positioned in an upright or an upside-down position. The liquid and/or gas CO2 coolant is then released into a capillary system or flow metering system to allow the CO2 to enter a second body to where the CO2 coolant properties may be leveraged. The second body includes, by way of example, a plate, a cushion, a spot treatment pad for a person's muscle, or a cooler. The temperature is controlled by a metering CO2 releasing system encompassing an electronic control device which sends alerts when pre-defined thresholds are exceeded. The invention's metering CO2 releasing system may be triggered by an electronic or a thermostatic valve or may be triggered manually or by an electronic solenoid.Type: ApplicationFiled: February 27, 2020Publication date: October 8, 2020Applicants: Frostime LLC, NORTH DAKOTA STATE UNIVERSITYInventors: Mark Holzwanger, Xianghong Henry Liu, Heng Hu, Harry Holzwanger, Maria Grazia Verardi, Robert A. Sailer, William John Refling
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Publication number: 20180274824Abstract: Standalone and self-contained cooling systems using compressed liquid and/or gas CO2 containers positioned in an insulated or non-insulated vessel encompassing a container which is either vertically positioned in an upright or an upside-down position. The liquid and/or gas CO2 coolant is then released into a capillary system or flow metering system to allow the CO2 to enter a second body to where the CO2 coolant properties may be leveraged. The second body includes, by way of example, a plate, a cushion, a spot treatment pad for a person's muscle, or a cooler. The temperature is controlled by a metering CO2 releasing system encompassing an electronic control device which sends alerts when pre-defined thresholds are exceeded. The invention's metering CO2 releasing system may be triggered by an electronic or a thermostatic valve or may be triggered manually or by an electronic solenoid.Type: ApplicationFiled: May 21, 2018Publication date: September 27, 2018Applicants: Frostime LLC, NORTH DAKOTA STATE UNIVERSITYInventors: Mark Holzwanger, Xianghong Henry Liu, Heng Hu, Harry Holzwanger, Maria Grazia Verardi, Robert A. Sailer, Justin Hoey, William John Refling
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Publication number: 20180266734Abstract: Standalone and self-contained cooling systems using compressed liquid and/or gas CO2 containers positioned in an insulated or non-insulated vessel and consisting of a specially designed unit where the containers are vertically positioned in an upright or upside-down position. The liquid and/or gas CO2 coolant is then released into capillary tube(s) embedded into a heat transfer plate or heat exchanger thus leveraging the CO2 coolant properties. The temperature is controlled by a metering CO2 releasing system encompassing an electronic control device which can be operated remotely and/or via a touch screen and which sends alerts when pre-defined thresholds are exceeded. The invention's metering CO2 releasing system may be triggered by an electronic or a thermostatic valve or may be triggered manually or by an electronic solenoid. The invention's cooling system also encompasses check valves, which avoid liquid and/or gas CO2 from escaping when removing or replacing CO2 containers individually.Type: ApplicationFiled: May 17, 2018Publication date: September 20, 2018Applicants: Frostime LLC, NORTH DAKOTA STATE UNIVERSITYInventors: Mark Holzwanger, Xianghong Henry Liu, Heng Hu, Harry Holzwanger, Maria Grazia Verardi, Robert A. Sailer, Justin Hoey
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Publication number: 20180259230Abstract: Standalone and self-contained cooling systems using compressed liquid and/or gas CO2 containers positioned in an insulated or non-insulated vessel and consisting of a specially designed unit where the containers are vertically positioned in an upright or upside-down position. The liquid and/or gas CO2 coolant is then released into capillary tube(s) embedded into a heat transfer plate or heat exchanger thus leveraging the CO2 coolant properties. The temperature is controlled by a metering CO2 releasing system encompassing an electronic control device which can be operated remotely and/or via a touch screen and which sends alerts when pre-defined thresholds are exceeded. The invention's metering CO2 releasing system may be triggered by an electronic or a thermostatic valve or may be triggered manually or by an electronic solenoid. The invention's cooling system also encompasses check valves, which avoid liquid and/or gas CO2 from escaping when removing or replacing CO2 containers individually.Type: ApplicationFiled: May 13, 2018Publication date: September 13, 2018Applicants: Frostime LLC, NORTH DAKOTA STATE UNIVERSITYInventors: Mark Holzwanger, Xianghong Henry Liu, Heng Hu, Harry Holzwanger, Maria Grazia Verardi, Robert A. Sailer, Justin Hoey
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Publication number: 20180202692Abstract: Standalone and self-contained cooling systems using compressed liquid and/or gas CO2 containers positioned in an insulated or non-insulated vessel and consisting of a specially designed unit where the containers are vertically positioned in an upright or upside-down position. The liquid and/or gas CO2 coolant is then released into capillary tube(s) embedded into a heat transfer plate or heat exchanger thus leveraging the CO2 coolant properties. The temperature is controlled by a metering CO2 releasing system encompassing an electronic control device which can be operated remotely and/or via a touch screen and which sends alerts when pre-defined thresholds are exceeded. The invention's metering CO2 releasing system may be triggered by an electronic or a thermostatic valve or may be triggered manually or by an electronic solenoid. The invention's cooling system also encompasses check valves, which avoid liquid and/or gas CO2 from escaping when removing or replacing CO2 containers individually.Type: ApplicationFiled: March 18, 2018Publication date: July 19, 2018Applicants: Frostime LLC, NORTH DAKOTA STATE UNIVERSITYInventors: Mark Holzwanger, Xianghong Henry Liu, Heng Hu, Harry Holzwanger, Maria Grazia Verardi, Robert A. Sailer, Justin Hoey
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Patent number: 8237161Abstract: Amorphous semiconductor films with enhanced charged carrier transport are disclosed. Also disclosed is a method for fabricating and treating the film to produce the enhanced transport. Also disclosed are semiconductor p-n junctions fabricated with the films which demonstrate the enhanced transport. The films are amorphous and include boron, carbon, and hydrogen.Type: GrantFiled: August 10, 2010Date of Patent: August 7, 2012Assignee: North Dakota State University Research FoundationInventors: Anthony N. Caruso, Joseph A. Sandstrom, David A. Bunzow
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Publication number: 20120037904Abstract: Amorphous semiconductor films with enhanced charged carrier transport are disclosed. Also disclosed is a method for fabricating and treating the film to produce the enhanced transport. Also disclosed are semiconductor p-n junctions fabricated with the films which demonstrate the enhanced transport. The films are amorphous and include boron, carbon, and hydrogen.Type: ApplicationFiled: August 10, 2010Publication date: February 16, 2012Applicant: NORTH DAKOTA STATE UNIVERSITY RESEARCH FOUNDATIONInventors: Anthony N. Caruso, Joseph A. Sandstrom, David A. Bunzow
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Publication number: 20110046257Abstract: The invention provides an improved unsaturated polyester prepared from the polycondensation of unsaturated diacid monomers or unsaturated acid anhydride mononers and polyol monomers and. optionally, one or more saturated aliphatic or aromatic diacid monomers or anhydride monomers thereof. The improvement comprises 0.5 to 50 weight percent, based on the total monomer weight, of an hydroxyalkyl-functional siloxane of formula (1) below. The invention also relates to a UV curable coating formulation containing a siloxane-functional unsaturated polyester resin, a vinyl ether functional diluents and a photoinitiator. The invention further provides a method of preparing an article with a low-surface energy coating. According to the method, at least one surface of an article with a coating formulation of the invention; and the coating is then cured as described above with UV light to form a low-surface energy coating on the surface.Type: ApplicationFiled: February 20, 2009Publication date: February 24, 2011Applicant: NORTH DAKOTA STATE UNIVERSITYInventors: Dean C. Webster, Neena Ravindran, Ankit Vora
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Publication number: 20100089124Abstract: An apparatus for measuring permeability accurately in expansive clay and non-expansive soils is provided. The apparatus includes hollow porous stone cylinders which prevent the sample from bulging and at the same time allow application of confining pressure on the soil sample enclosed in a flexible membrane, which simulates the field condition and allows for application of back pressure to aid in saturation. The apparatus also allows for accurate comparison of hydraulic characteristics of swelling clays with fluids of various dielectric and other properties. The apparatus can also be used to consolidate the sample either three dimensionally or in one direction and perform permeability tests as well as find out the consolidation characteristics of the sample.Type: ApplicationFiled: September 25, 2009Publication date: April 15, 2010Applicant: NORTH DAKOTA STATE UNIVERSITYInventors: DINESH RAMANATH KATTI, PRIYANTHI AMARASINGHE, KALPANA S. KATTI
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Publication number: 20080171212Abstract: A protective coating including a crosslinked polyester that is removable with a basic composition, as well as coated articles, methods of preparing a protective coating, and methods of using a protective coating.Type: ApplicationFiled: June 9, 2005Publication date: July 17, 2008Applicant: NORTH DAKOTA STATE UNIVERSITYInventors: Tara J. Shedlosky, Gordon P Bierwagen, Dean C. Webster, Andrew M. Huovinen
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Publication number: 20080138912Abstract: Applicants have produced a chromophore and a polymer that are highly sensitive to the presence of various agents, including organophosphates, pesticides, neurotoxins, metal ions, some explosives, and biological toxins. The detection is accomplished by detecting a change in the fluorescence characteristics of the chromophore or polymer when in the presence of the agent to be detected. The chromophore and polymer may be incorporated into sensors of various types, and they are adaptable for potential field use in areas where detection of these types of agents is desired.Type: ApplicationFiled: January 24, 2006Publication date: June 12, 2008Applicant: North Dakota State UniversityInventors: Johnson Thomas, Philip Boudjouk
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Publication number: 20080063189Abstract: An apparatus and method is described of reducing joint weight for integers involved in a scalar multiplication, such as during cryptography. By way of example, the method is utilized within elliptic curve cryptography (ECC), wherein reducing joint weight speeds the execution of the scalar multiplication and reduces memory overhead. Generally, the recoding technique of the present invention involves generating a binary signed-digit representation for the two or more non-negative integers and then replacing groups of the binary signed-digits from left to right according to a predetermined pattern in order to reduce joint weight. The recoding process of the present invention is performed in a left-to-right order which is compatible with the order of the scalar multiplication. The present method reduces the amount of memory required for performing cryptography and allows it to be implemented in hardware or any desired combination of hardware and software.Type: ApplicationFiled: November 10, 2006Publication date: March 13, 2008Applicant: NORTH DAKOTA STATE UNIVERSITYInventors: RAJENDRA KATTI, XIAOYU RUAN
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Patent number: 7304298Abstract: A photoemissive ion mobility spectrometer is disclosed for of chlorinated hydrocarbons and nitro-organic materials. Backside illumination of a thin gold film by pulsed laser radiation, pulsed ultraviolet xenon flashlamp, or like UV source, is used to produce bursts of low energy photo-emitted electrons. These swarms of thermalized electrons are directly attached by electronegative analytes or by reactant molecules, followed by charge transfer to the more electronegative analyte. Total internal reflection is incorporated for the backside illumination using optical elements such as a fused silica prism. The spectrometer allows for the direct vaporization of adsorbed explosive molecules from surfaces followed by direct injection into the photoemissive ion mobility spectrometer through a heated inlet.Type: GrantFiled: July 20, 2006Date of Patent: December 4, 2007Assignee: North Dakota State UniversityInventors: Orven F. Swenson, Feng Hong
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Publication number: 20070208975Abstract: The present invention provides an apparatus and method for implementing low-power linear feedback shift registers (LFSR) that efficiently produce single or multiple outputs. In one case of single output generation the gates are permanently connected to the respective flip-flops reducing the number of switches necessary. In the case of multiple outputs the outputs are generated several clock cycles at once, which enables the frequency of operation to be reduced by a factor equal to the number of outputs produced at a time. In either case grouping is utilized for reducing the number of gates necessary and the power dissipation. The invention is applicable to a wide range of applications, including but not limited to data compression, encryption, communication, error correction, built-in self-test, and so forth.Type: ApplicationFiled: November 10, 2006Publication date: September 6, 2007Applicant: NORTH DAKOTA STATE UNIVERSITYInventors: RAJENDRA KATTI, ABDULLAH MAMUN
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Patent number: 7089244Abstract: A system and method for concurrency control in high performance database systems. Generally includes receiving a database access request message from a transaction. Then, generating an element that corresponds to the access request message. The element type is that of a read element, commit element, validated element, or restart element. The element is then posted to a read-commit (RC) queue. If the element is a commit element, an intervening validation of the transaction is performed. Upon the transaction passing validation the requested database access is performed.Type: GrantFiled: May 16, 2003Date of Patent: August 8, 2006Assignee: North Dakota State UniversityInventors: Victor T. Shi, William K. Perrizo
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Publication number: 20060083664Abstract: A test panel for use in preparing a coating array, includes a plate having a non-corrosive surface and a plurality of raised edges integrally formed as part of the non-corrosive surface. The raised edges define a plurality of wells. Also disclosed is a method of testing coatings placed on a panel.Type: ApplicationFiled: June 17, 2005Publication date: April 20, 2006Applicant: North Dakota State UniversityInventor: James Bahr
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Publication number: 20050287573Abstract: A multi-well plate includes a plurality of wells, and each well has a base and one or more side walls. A liner is located adjacent the base of at least one of the plurality of wells. A method for forming a multi-well plate system includes providing a multi-well plate and applying a liner to a well of the multi-well plate.Type: ApplicationFiled: June 17, 2005Publication date: December 29, 2005Applicant: North Dakota State UniversityInventors: Shane Stafslien, James Bahr
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Publication number: 20050273875Abstract: The invention provides Fusarium resistant tetraploid wheat.Type: ApplicationFiled: March 2, 2005Publication date: December 8, 2005Applicant: North Dakota State UniversityInventor: Elias Elias
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Publication number: 20050210555Abstract: ‘SunDak’ is a new cultivar of Syringa pekinensis, Pekin lilac tree. This new cultivar has a coppery-orange exfoliating bark pattern that separates into shaggy curls; large, abundantly produced creamy-white flower panicles; attractive seed capsules; upright broadly-oval to rounded form; typically grows multiple-trunked and with improved winter hardiness.Type: ApplicationFiled: March 18, 2004Publication date: September 22, 2005Applicant: North Dakota State UniversityInventors: Dale Herman, Scott Redlin, Larry Chaput
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Publication number: 20030236786Abstract: A system and method for concurrency control in high performance database systems. Generally includes receiving a database access request message from a transaction. Then, generating an element that corresponds to the access request message. The element type is that of a read element, commit element, validated element, or restart element. The element is then posted to a read-commit (RC) queue. If the element is a commit element, an intervening validation of the transaction is performed. Upon the transaction passing validation the requested database access is performed.Type: ApplicationFiled: May 16, 2003Publication date: December 25, 2003Applicant: North Dakota State University and North Dakota State University NDSU-Research FoudationInventors: Victor T. Shi, William K. Perrizo