公开(公告)号：US12193532B2

公开(公告)日：2025-01-14

申请号：US18561291

申请日：2021-06-01

Applicant: NANJING FORESTRY UNIVERSITY

Inventor： Chao Deng ,  Farzad Seidi ,  Qiang Yong ,  Xiangyu Jin ,  Chengcheng Li ,  Haiying Wei

IPC: D06M13/328 ,  A41D13/11 ,  B32B5/02 ,  B32B5/26 ,  B32B7/02 ,  D04H1/26 ,  D04H1/425 ,  D04H1/4291 ,  D04H1/4374 ,  D04H1/4382 ,  D04H1/492 ,  D04H3/16 ,  D06M13/355 ,  D06M13/395 ,  D06M16/00 ,  D06M101/30

Abstract: An antibacterial and antiviral degradable mask and a manufacturing method thereof are provided. From outside to inside, the mask sequentially comprises a surface layer (1), a core layer (2), and an inner layer (3) that contacts the face; the surface layer (1) is made of an antibacterial and antiviral cellulose spunlace non-woven fabric; the core layer (2) is made of a polypropylene melt-blown non-woven fabric; the inner layer (3) is made of a polypropylene spunbond non-woven fabric or a degradable natural cotton fabric. The mask can have both antibacterial and antiviral functions; moreover, the material is degradable, and thus, environmental pollution pressure caused by non-degradable petroleum-based fiber materials such as polypropylene can be effectively relieved.

公开(公告)号：US12161995B1

公开(公告)日：2024-12-10

申请号：US18676521

申请日：2024-05-29

Applicant: Nanjing Forestry University ,  Aica Nanjing Co., Ltd

Inventor： Qian Zhang ,  Fengwen Sun ,  Zhang Zhang ,  Yangyan Qi ,  Yundan Dong

IPC: B01J20/28 ,  B01J20/30 ,  D01D1/02 ,  D01D5/00

Abstract: A preparation method for a nanocomposite fiber membrane material based on a bio-based liquefied formaldehyde resin is provided. A bio-based raw material is processed through a phenol/polyethylene glycol complex liquefaction process, followed by divalent alkali metal hydroxide high ortho-position induction synthesis resinification and modification with the polymer polyvinyl alcohol to create a spinnable precursor as PVA-BLF. Subsequently, a coaxial electrospinning device is utilized, where PVA-BLF serves as a core layer and a titanium dioxide dispersion is used as a shell layer, to fabricate a PVA-BLF/TiO2 nanocomposite fiber membrane material. The average diameter of the nanocomposite fiber membrane is 150-450 nm, and the specific surface area is 500-700 m2/g. The porosity exceeds 60%, and the fracture elongation ranges from 5.5% to 6.5%, demonstrating excellent filtration performance and excellent regeneration performance, which can be developed as adsorption materials for water and air purification.

公开(公告)号：US20240383169A1

公开(公告)日：2024-11-21

申请号：US18451821

申请日：2023-08-17

Applicant: NANJING FORESTRY UNIVERSITY

Inventor： QiLiang Fu ,  YuJie Chen ,  Yue Jiao ,  Lei Ye ,  Zhi Yang ,  ChangTong Mei ,  Yan Wu ,  KaiLi Wang

IPC: B27K3/02 ,  B27K3/15 ,  B27K3/36

Abstract: A transparent wood surface imprinting optical device is provided. A preparation method for the device includes cleaning and drying surfaces of transparent wood, spin-coating polymethyl methacrylate (PMMA) on a substrate of the transparent wood to obtain a PMMA layer, and spin-coating an ultraviolet (UV) glue on the PMMA layer to obtain a UV glue layer; placing the transparent wood on a silicon wafer, attaching a transparent grating array imprinting template on the UV glue layer, exposing the UV glue layer, and removing the transparent grating array imprinting after the exposing, thereby to obtain a grating-structure-based transparent wood; and replacing the grating structure imprinting template by a lattice structure imprinting template to prepare lattice-structure-based transparent wood. The diffraction efficiency of the grating structure and the lattice structure on the transparent wood are greater and more stable than those of PMMA substrates.

公开(公告)号：US20240035056A1

公开(公告)日：2024-02-01

申请号：US18274770

申请日：2021-05-06

Applicant: NANJING FORESTRY UNIVERSITY

Inventor： Caoxing HUANG ,  Qiang YONG ,  Yuheng TAO ,  Chenhuan LAI ,  Yong XU ,  Xin LI

IPC: C12P19/04 ,  C12N9/40 ,  C12N9/24

CPC classification number: C12P19/04 ,  C12N9/2465 ,  C12Y302/01022 ,  C12N9/2491 ,  C12Y302/01025

Abstract: A method and special complex enzyme for hydrolyzing a galactomannan (GM) to prepare a small-molecule GM and a galactomannan oligosaccharide (GMOS) is provided. The method includes: conducting fermentation with microcrystalline cellulose (MCC) and melibiose as carbon sources and Trichoderma reesei (T. reesei) as an enzyme-producing strain to obtain a supernatant, which is a complex enzyme solution with enzymatic activities of β-mannanase and α-galactosidase; and directly using the complex enzyme solution for enzymatic hydrolysis of a GM as a substrate to prepare the small-molecule GM and the GMOS.

公开(公告)号：US11810455B2

公开(公告)日：2023-11-07

申请号：US17296923

申请日：2020-06-15

Applicant: NANJING FORESTRY UNIVERSITY

Inventor： Jianxiao Ma ,  Song Fang ,  Tao Lu

IPC: G08G1/08 ,  G08G1/04 ,  G08G1/052

CPC classification number: G08G1/08 ,  G08G1/04 ,  G08G1/052

Abstract: An urban tunnel variable lane dividing line control method, comprising: setting a distance between adjacent infrared detection apparatuses, and arranging a number n of infrared detection apparatuses side by side directly above the center of a lane of an urban tunnel; when a certain infrared detection apparatus in the urban tunnel detects a passing vehicle signal, extending the travelling direction, and if a number a of adjacent infrared detection apparatuses further along the travelling direction do not detect a passing vehicle signal within a time t, determining that the vehicle is a very slow vehicle, and changing a number m of LED indication lights which are fully illuminated to be illuminated at intervals. The urban tunnel variable lane dividing line control method can determine whether a very slow vehicle is present in a lane, and adjust a display state of a lane dividing line in an urban tunnel in real time, thereby increasing urban tunnel traffic efficiency, and preventing very slow vehicles from affecting urban tunnel traffic capacity.

公开(公告)号：US20230119588A1

公开(公告)日：2023-04-20

申请号：US17965429

申请日：2022-10-13

Applicant: Nanjing Forestry University ,  JM Industries Group ,  Fujian Shuangyi Bamboo and Wood Development Co., Ltd.

Inventor： Jiabin Cai ,  Shuai Cao ,  Minghan Li ,  Nan Zhou ,  Chang Liu ,  Pengyu Wang

IPC: B27J1/00

Abstract: Provided is a node diaphragm scraping and sorting device for a bamboo split which is configured to scrape node diaphragms of the bamboo splits and to sequentially sort the bamboo inner layers and bamboo outer layers of the bamboo splits towards the same direction. The device includes a node diaphragm scraping device, a sorting device and a clamping and conveying device which are arranged from front to back along an axis. The node diaphragm scraping device includes a conical cylinder, two pressing semi-rings, and a scraping ring. The sorting device includes an e-shaped sleeve composed of an inner cylinder and an outer cylinder, and two shifting forks located at both ends of the sleeve. The clamping and conveying device includes an inner ring moving on the axis, two clamping semi-rings and a conveying power device. The structure, function and technical parameters of each branch device are also introduced in detail.

公开(公告)号：US20220063126A1

公开(公告)日：2022-03-03

申请号：US17522786

申请日：2021-11-09

Applicant: Nanjing Forestry University

Inventor： Haiyang Zhang ,  Yanjun Li ,  Xinzhou Wang ,  Zhichao Lou

IPC: B27K9/00 ,  B27J1/00 ,  B27K5/06

Abstract: Disclosed is a bamboo strip shaping method, which includes the following steps: S01: cutting a bamboo tube, and removing inner joints, outer joints and bamboo outer skin; S02: trisecting or quartering the bamboo tube in a longitudinal direction to obtain curved bamboo strips; S03: placing the curved bamboo strips in a bamboo strip shaping device for processing; S04: subjecting the curved bamboo strips to steam treatment and heating softening treatment; S05: pressing and shaping the curved bamboo strips to obtain flattened bamboo strips, and drying for a first time under a maintained pressure; S06: wetting bamboo outer skin surfaces and bamboo inner skin surfaces of the flattened bamboo strips, and drying for a second time; and S07: wetting the bamboo outer skin surfaces and the bamboo inner skin surfaces of the flattened bamboo strips, and drying for a third time.

公开(公告)号：US11103850B2

公开(公告)日：2021-08-31

申请号：US16307508

申请日：2017-12-08

Applicant: Nanjing Forestry University

Inventor： Songlin Zuo ,  Meng Miao ,  Yunyang Zhao

IPC: C01B32/205 ,  B01J20/20 ,  B01J20/28 ,  B01J20/30

Abstract: The present application provides a graphite-like crystallite-based carbon nanomaterial, and a preparation method and application thereof. The graphite-like crystallite-based carbon nanomaterial provided by the present invention is a carbon nanomaterial having graphite-like crystallites as structural units, and includes, based on 100 parts by mass of chemical composition, 50-60 parts of carbon, 30-50 parts of oxygen, and 1-3 parts of hydrogen, where the structural units of the graphite-like crystallite-based carbon nanomaterial are the graphite-like crystallites; the size of the graphite-like crystallite-based carbon nanomaterial is 5-10 nm; and the graphite-like crystallite-based carbon nanomaterial is a non-fluorescent carbon nanomaterial. The present invention also provides a preparation method of the graphite-like crystallite-based carbon nanomaterial, including: selectively oxidizing a graphite-like microcrystalline charcoal by using an oxidant solution, and etching away an amorphous charcoal bonded between graphite-like crystallites, to achieve the purpose of dissociating the graphite-like microcrystalline charcoal, thereby obtaining a graphite-like crystallite-based carbon nanomaterial.

公开(公告)号：US10808001B2

公开(公告)日：2020-10-20

申请号：US16487846

申请日：2018-02-13

Applicant: NANJING FORESTRY UNIVERSITY

Inventor： Guibin Wang ,  Li Xu ,  Shilong Yang ,  Fuliang Cao

IPC: C07F15/00 ,  C07F15/06

Abstract: A method for preparing a biflavone-cobalt complex includes using the amentoflavone as the ligand and the cobalt ion as the central ion, the amentoflavone-cobalt complex is obtained by reaction, and the structure of the complex is characterized by infrared spectroscopy, UV-vis absorption spectroscopy and high resolution mass spectrometry. Meanwhile, the antitumor and antioxidant activities of the amentoflavone-cobalt complex are studied in the present invention. MTT method shows that the amentoflavone-cobalt complex has better antitumor activity, and the antitumor activity thereof is stronger than that of the amentoflavone. Pyrogallol auto-oxidation method, ABTS method and FRAP method show that the antioxidan activity of the amentoflavone-cobalt complex is stronger than that of the amentoflavone itself. The formation of the flavonoid-cobalt complex enhances the antitumor and anti-oxidation activities of the amentoflavone, and is expected to be used in the development of drugs.

公开(公告)号：US20200308990A1

公开(公告)日：2020-10-01

申请号：US16484075

申请日：2018-08-28

Applicant: NANJING FORESTRY UNIVERSITY

Inventor： JIANBIN ZHOU ,  YIMENG ZHANG ,  HUANHUAN MA

IPC: F01K7/16 ,  F01K11/02 ,  F01K13/00 ,  F01K3/18 ,  F23G5/027

Abstract: A method and apparatus for generating electricity and producing carbon and heat via biomass fixed bed gasification, said method and apparatus utilising medium calorific value combustible gas to satisfy high-temperature high-pressure boiler heat requirements, and increasing overall electricity generation efficiency. The method and apparatus have low nitrogen oxides amounts, satisfy environmental protection requirements, and do not require denitrification treatment. The method comprises the following steps: feeding a biomass raw material into a gasification apparatus to prepare a medium calorific value biomass combustible gas, and performing gasification on the biomass raw material at 700-850° C. under the effect of an air/water vapour pre-mixed gasification agent to produce a combustible gas, the calorific value of the combustible gas being 1600-1800 kcal, the temperature being 200-300° C.; directly feeding the combustible gas into an environmentally friendly combustion chamber for combustion, and then into a high-temperature high-pressure boiler, the gas combusting within the high-temperature high-pressure boiler to produce high-temperature high-pressure steam, which drives a steam turbine to generate electricity; utilising steam waste heat discharged by the steam turbine; using boiler tail gas to heat air by means of an air preheater, the hot air being respectively fed into the combustion chamber and the gasification apparatus by means of an air blower, and utilising the waste heat.