Zhejiang University

Dobi Global, LLC

Ningbo Zhuyun Houseware Co., Ltd

Hongtao Wang

Youtong Fang

Jiabin Liu

Liang Meng

Litian Wang

Yu Tian

Yuqing Xu

Xiaoqing Wang

Yizhi Zhang

Ye Wu

Ruowen Rong

John G Zhang

Qinguo He

Jianqin Wang

Jindong Zhang

Xiaoyang Fang

A method and apparatus for dual mode imaging uses an ultrasonic detection device, a diffuse optical tomography (DOT) detection device for imaging a breast. The DOT detection device is configured to detect changes of tissue blood oxygen. A host machine in communication with the ultrasonic detection device and the DOT detection device is used for imaging the breast by simultaneously generating functional images and structural information images of the breast based on the imaging.

Dual mode three-dimensional breast imaging device and method

A high-efficiency and short-process method for preparing a high-strength and high-conductivity copper alloy is disclosed, comprising the following steps: performing horizontal continuous casting to obtain an as-cast primary billet of copper alloy, wherein the alloying elements in the obtained as-cast primary billet being in a supersaturated solid solution state; after peeling the obtained as-cast primary billet, directly performing continuous extrusion, cold working and aging annealing treatment to obtain a copper alloy, and keeping the alloying elements of the billet in a supersaturated solid solution state during the process of continuous extrusion. The method shortens the flow, reduces energy consumption and improves the product forming rate.

High-efficiency and short-process method for preparing a high-strength and high-conductivity copper alloy

Tissue box

A multi-degree-of-freedom sample holder, comprising a housing and a rotating shaft, is disclosed. A frame is provided between the housing and the rotating shaft, and the frame is coaxial with the housing and rotating shaft. The present invention has multiple degrees of freedom such as high-precision translational freedom of the sample along the X-axis, Y-axis and Z-axis, and 360&#xb0; rotation of the sample around the axis, etc. The sample is always aligned with the sample holder shaft during the rotation, and the static electricity accumulated on the sample can be led out.

Multi-degree-of-freedom sample holder

A stainless steel with high strength and high toughness and processing method thereof are disclosed in the present invention. The stainless steel comprising: C of 0.01%&#x2dc;0.1% weight percentage, N of 0.05%&#x2dc;0.2%, P of no higher than 0.03%, S of no higher than 0.003%, Si of 0.5%&#x2dc;1%, Mn of 1.0%&#x2dc;2.0%, Cr of 15%&#x2dc;17%, Ni of 5% to 7%, and Fe. The stainless steel contains austenite and strain-induced martensite structure, wherein the martensite is of irregular approximately spindle body shape, and the average size of its long axis ranges from 50 to 1000 nm and that of its short axis ranges from 20 to 500 nm, the volume percent of martensite in the stainless steel is 0.1% to 20%.

High strength and high toughness stainless steel and processing method thereof

The present invention discloses a super-strong high-conductivity copper alloy and applications thereof as the contact wire materials of high speed railways allowing a speed of over 400 km per hour. The copper alloy comprises niobium, chromium, zirconium, titanium and remaining copper; the copper alloy exists in the form of long bar or wire, wherein niobium is distributed in the copper matrix in the form of nanofibers and solid solution atoms, chromium is distributed around the niobium fibers and the copper matrix in the form of nano-particles and solid solution atoms, zirconium is distributed around the niobium fibers and in the copper matrix in the form of copper-zirconium compound nano-particles and solid solution atoms; titanium is distributed in the copper matrix in the form of copper-titanium GP zone and solid solution atoms; the total amount of niobium, chromium and zirconium solid solution atoms contained in the copper alloy is less than 0.2%.

High-strength and high-conductivity copper alloy and applications of alloy as material of contact line of high-speed railway allowing speed higher than 400 kilometers per hour

A high-strength and high-conductivity copper alloy and applications of the alloy as a material of a contact line of a high-speed railway allowing a speed higher than 400 kilometers per hour. The copper alloy has the following characteristics: (1) constituents of the copper alloy are in the form of CuXY, X is one or more selected from Ag, Nb and Ta, and Y is one of more selected from Cr, Zr and Si; (2) at a room temperature, the element X in the copper alloy exists in the form of a pure phase and solid solution atoms, the element Y exists in the form of a pure phase and solid solution atoms or a CuY compound and solid solution atoms, the content of the element X existing in the form of the solid solution atoms is lower than 0.5%, and the content of the element Y existing in the form of the solid solution atoms is lower than 0.1%; and (3) the copper alloy exists in the form of long strip rods or lines, the element X in the form of the pure phase is embedded in the copper alloy in the form of fibers disposed in parallel approximately, and the axial direction of the fibers is approximately in parallel with the axial direction of the copper alloy rods or lines; and the element Y existing in the copper alloy in the form of the pure phase or the CuY compound is embedded in the copper alloy in the form of particles. The copper alloy is suitable for being used as a material of a contact line of a high-speed railway allowing a speed higher than 400 kilometers per hour.

A method of processing fully austenitic stainless steels, comprising the following steps: (1) performing a solution treatment on a raw material with a certain chemical composition, and cooling to get samples, the raw material contains: 0&#x2dc;0.2% of C, 0&#x2dc;0.2% of N, not more than 0.03% of P, not more than 0.001% of S, 0.5%&#x2dc;1% of Si, 1.0%&#x2dc;2.0% of Mn, 15%&#x2dc;17% of Cr, 5%&#x2dc;7% of Ni by weight, the remaining is Fe, and the content of C and N should not be zero simultaneously with a total content of both at 0.15%&#x2dc;0.2%; and (2) performing hot-working for deformation of the samples obtained in step (1), to get a fully austenitic stainless steel. The stainless steel prepared by the hot-working deformation of the present invention has a yield strength of 2 to 3 times of that before hot-working deformation and an elongation of 1.05 to 1.2 times of that before hot-working deformation.

Growing community of inventors

Hangzhou, China

Hongtao Wang