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Hohai University patents (2016 archive)


Recent patent applications related to Hohai University. Hohai University is listed as an Agent/Assignee. Note: Hohai University may have other listings under different names/spellings. We're not affiliated with Hohai University, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "H" | Hohai University-related inventors


Heat source-free fiber positioning and orienting system for seepage of submerged or partially-submerged structures and monitoring method thereof

A heat source-free fiber positioning and orienting system for seepage of submerged or partially submerged structures and monitoring method thereof includes a plurality of seepage monitoring devices connected through rotary supports. The seepage monitoring devices include first seepage monitoring units symmetrically distributed on the front and back and second seepage monitoring units symmetrically distributed on left and right. ... Hohai University

Method for preparing high-density hexagonal boron nitride ceramic material

A method for preparation of a high-density hexagonal boron nitride (hbn) ceramic material is disclosed. According to the method, the surface of hbn powder is coated with an evenly-dispersed sio2 nanoparticle layer using tetraethyl orthosilicate as a precursor, and then the high-density hbn ceramic material is obtained by pressureless sintering. ... Hohai University

Method for preparing titanium nitride-titanium diboride-cubic boron nitride composite material

A method for preparing a titanium nitride-titanium diboride-cubic boron nitride composite material is disclosed. Titanium powder and cubic boron nitride raw powders are mixed by a planetary ball milling method, and then the titanium nitride-titanium diboride-cubic boron nitride composite material is prepared through the steps of wet mixing, drying, sieving, pre-sintering through a high-temperature vacuum furnace, cold isostatic press molding and high-temperature sintering.. ... Hohai University

Transparent frozen soil and preparation method and application thereof

The present invention discloses a transparent frozen soil, which is prepared from a fluorine-containing polymer, cube ice and a colorless pore fluid by steps of preparing materials, blending, vacuuming, consolidating, and freezing. The fluorine-containing polymer is teflon af 1600 produced by american dupont company, with the refractive index of 1.31, the particle diameter ≦0.074 mm, and the density of 2.1-2.3 g/cm3. ... Hohai University

Application of a fluorine-containing polymer in preparation of transparent frozen soil

The present invention discloses the application of a fluorine-containing polymer in the preparation of a transparent frozen soil, which is used as a transparent solid material while in the preparation of a transparent frozen soil, wherein the fluorine-containing polymer is teflon af 1600 produced by american dupont company, with the refractive index of 1.31 and the density of 2.1-2.3 g/cm3, and are particles with the particle diameter of 0.25-2.0 mm or particles with the particle diameter ≦0.074 mm, and its particles have irregular shape. When said fluorine-containing polymer of the present invention is used as a transparent solid material for preparing a transparent frozen soil, the prepared transparent frozen soil has high transparency, low price, no toxicity and no harm, and good similarity with the properties of the natural frozen soil body, can widely substitute natural frozen soil, is used for simulating complicated geological conditions, and is effectively used in model tests in the geotechnical engineering.. ... Hohai University

Transparent frozen soil and preparation method and application thereof

The present invention discloses a transparent frozen soil, which is prepared from a fluorine-containing polymer, cube ice and a colorless pore fluid by steps of preparing materials, blending, vacuuming, and freezing. The fluorine-containing polymer is teflon af 1600 produced by american dupont company, with the refractive index of 1.31, and are particles with the particle diameter of 0.25-2.0 mm, and the density of 2.1-2.3 g/cm3. ... Hohai University

Distributed sensing optical fiber multi-objective multi-degree-of-freedom static and dynamic test device and method

The present invention relates to a distributed sensing optical fiber performance multi-objective multi-degree-of-freedom static and dynamic test integrated platform and a test method. Wherein an optical fiber multi-degree-of-freedom fixing system is sequentially connected with an artificial loading and unloading device and an oil pressure control loading and unloading device, and an optical fiber under test is connected with the optical fiber multi-degree-of-freedom fixing system and a distributed optical fiber brillouin frequency shift acquisition system; and test on performance of optical fiber is achieved by controlling devices in the optical fiber multi-degree-of-freedom fixing system. ... Hohai University








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