公开(公告)号：US20230194420A1

公开(公告)日：2023-06-22

申请号：US18112364

申请日：2023-02-21

Applicant: CSIR

Inventor： ETTIENNE COX

IPC: G01N21/3504 ,  G01M3/38

CPC classification number: G01N21/3504 ,  G01M3/38 ,  G01N2021/1772

Abstract: This invention relates to a method of and system for facilitating detection of a particular predetermined gas in a scene under observation. The gas in the scene is typically associated with a gas leak in equipment. To this end, the system comprises an infrared camera arrangement; a strobing illuminator device having a strobing frequency matched to a frame rate of the camera; and a processing arrangement. The processing arrangement is configured to store a prior frame obtained via the infrared camera arrangement; and compare a current frame with the stored prior frame and generate an output signal in response to said comparison. The system also comprises a display device configured to display an output image based at least on the output signal generated by the processing arrangement so as to facilitate detection of the particular predetermined gas, in use.

公开(公告)号：US20210234328A1

公开(公告)日：2021-07-29

申请号：US16972075

申请日：2019-06-04

Applicant: CSIR

Inventor： Lebohang Teboho Bell ,  Sandile Ngcobo

IPC: H01S3/109 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/06 ,  H01S3/10

Abstract: A frequency double or mixing laser includes a laser pump, a rear optical element, a Brewster window, a laser generator medium, an output coupler and a nonlinear crystal located inside the resonator cavity. The nonlinear crystal may be located inside the resonator cavity before the output coupler. The laser may further include at least one optical element that controls the phase or/and the amplitude of the fundamental laser beam to a high-order.

公开(公告)号：US10767018B2

公开(公告)日：2020-09-08

申请号：US15686991

申请日：2017-08-25

Applicant: CSIR

Inventor： Ray Sinha Suprakas ,  Jayita Bandyopadhyay ,  Mary Khoza ,  Vincent Ojijo ,  Manfred Rudolf Scriba

IPC: C08J3/05 ,  C08F8/48 ,  C08F8/42 ,  C08F255/02 ,  C08F8/12 ,  C08L23/12 ,  C08L51/06 ,  C08J3/00 ,  C08J3/24

Abstract: This invention relates to a process for producing an isotactic polypropylene based composite, comprising: reactive blending of isotactic polypropylene homo-polymer; polypropylene grafted with a carboxylic anhydride or a furan type moiety such as maleic anhydride grafted polypropylene; and an amino silane such as (3-aminopropyl)triethoxysilane to produce an isotactic polypropylene based composite such that the crystallization temperature of the isotactic polypropylene based composite is in a range of about 120° C. to about 126° C. The reactive blending can further take place in the presence of an organically modified nanoclay.

公开(公告)号：US10731290B2

公开(公告)日：2020-08-04

申请号：US15318324

申请日：2015-06-12

Applicant: CSIR

Inventor： Stephen Anthony Chapple

IPC: D06M11/68 ,  C09K21/04 ,  C09K21/12 ,  D06M13/44 ,  B27K3/52 ,  D06M101/06

Abstract: A liquid flame retardant composition is in the form of an admixture which includes a phosphate-based flame retardant, ammonium hydroxide and zinc borate. The invention extends to a method of providing a phosphate-based liquid flame retardant composition, to the use of a phosphate-based flame retardant, ammonium hydroxide and a zinc borate in the manufacture of a liquid flame retardant composition, to a cellulosic material treated with the liquid flame retardant composition and to a method of inhibiting strength loss in a cellulosic material when the cellulosic material is exposed to heat.

公开(公告)号：US20200092028A1

公开(公告)日：2020-03-19

申请号：US15750959

申请日：2016-08-05

Applicant: UNIVERSITY OF THE WITWATERSRAND, JOHANNESBURG ,  CSIR

Inventor： Andrew FORBES ,  Angela DUDLEY ,  Carmelo Guadalupe Rosales GUZMÁN

IPC: H04J14/04 ,  H04B10/516 ,  H04B10/66

Abstract: The invention relates to optical communication methods and systems. In particular, the invention relates to an optical communication method and system which is configured to create a multiplexed beam from an incident beam, wherein the multiplexed beam comprises a predetermined number of spatial modes simultaneously generated and multiplexed together in a fashion that is independent of wavelength. The spatial modes have two degrees of spatial freedom. The multiplexed beam is de-multiplexed downstream from multiplexing thereof in the communication system in a simultaneous fashion independent of wavelength to yield the predetermined number of spatial mode. The modes are used in optical communication as channels or as bits in a bit (de) encoding scheme.

公开(公告)号：US20200056969A1

公开(公告)日：2020-02-20

申请号：US16662927

申请日：2019-10-24

Applicant: CSIR

Inventor： Frederick Christoffel Rust ,  Morris De Beer

IPC: G01N3/36 ,  G01N3/32 ,  G01N3/08 ,  G01N33/42

Abstract: A method of testing pavement includes repeatedly simulating wheel loading on the pavement by repeatedly applying a plurality of discrete forces with a downwards component, in series and one after the other, to an upper surface of a test strip of the pavement thereby to simulate a load exerted by a travelling wheel and hence subjecting the pavement to accelerated testing. The discrete forces are provided by repeatedly actuating a series of actuators, one after the other, each to exert a force with a downwards component to the upper surface of the test strip of pavement, or to a portion thereof.

公开(公告)号：US10396357B2

公开(公告)日：2019-08-27

申请号：US15322626

申请日：2015-07-03

Applicant: CSIR

Inventor： Kenneth Ikechukwu Ozoemena ,  Charl Jeremy Jafta

IPC: H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  C01G53/00 ,  H01M4/02

Abstract: A process for producing a layered lithium-manganese-nickel-cobalt oxide material, includes producing a raw layered lithium-manganese-nickel-cobalt oxide (‘LMNC’) material. Optionally, a dopant capable of enhancing the performance of the layered LMNC material when used as a cathode material in an electrochemical cell, is introduced during the production of the raw LMNC material. Before any annealing of the raw LMNC material is effected, it is subjected to microwave treatment. The resultant treated material is annealed to obtain the layered LMNC material.

公开(公告)号：US10167466B2

公开(公告)日：2019-01-01

申请号：US14916338

申请日：2014-09-04

Applicant: CSIR

Inventor： Stephanie Fanucchi ,  Youtaro Shibayama ,  Shaun Burd ,  Musa M. Mhlanga

IPC: C12N15/85 ,  C12N15/01 ,  C12N9/22 ,  C12N15/63 ,  C12Q1/6841 ,  C12Q1/6876

Abstract: This invention relates to a single cell assay for determining the effect of chromosomal contact on the transcriptional activity of genes of interest in a cell and to methods of silencing gene expression in a cell by way of perturbing gene regulatory elements which are engaged in chromosomal contact.

公开(公告)号：US20180375097A1

公开(公告)日：2018-12-27

申请号：US16064241

申请日：2016-12-14

Applicant: CSIR

Inventor： Kenneth Ikechukwu Ozoemena ,  Kumar Raju

IPC: H01M4/525 ,  H01M10/0525 ,  H01M4/505 ,  C01G53/00 ,  H01M4/1391

Abstract: A process for producing a doped lithium manganese-oxide spinel material includes producing, by means of a solid-state reaction, a spinel precursor comprising lithium-manganese-oxide doped with nickel. The precursor is subjected to microwave treatment, to obtain a treated precursor. The treated precursor is annealed to obtain a nickel-doped lithium-manganese-oxide spinel material.

公开(公告)号：US20180134575A1

公开(公告)日：2018-05-17

申请号：US15576192

申请日：2016-05-12

Applicant: CSIR

Inventor： David Steyn VAN VUUREN ,  Thebe Phillip MOKONE

IPC: C01G31/04

CPC classification number: C01G31/04

Abstract: A process (10) for the production of VCI4 includes suspending a solid particulate oxygen-free vanadium compound starting material in a liquid reaction medium to form a reaction mixture, and reacting the oxygen-free vanadium compound starting material suspended in the liquid reaction medium with a chlorinating agent (18) to produce liquid VCI4. The liquid reaction medium in the reaction mixture is maintained at a reaction temperature above its normal boiling point and the oxygen-free compound starting material and the chlorinating agent are reacted at a reaction pressure higher than the vapour pressure of the liquid reaction medium at the reaction temperature of the process so that the reaction mixture does not boil.