Post-doctoral Fellow (3 posts)

first_imgRef.: 503222Work type: Full-timeDepartment: Department of Chemistry (25200)Categories: Academic-related StaffHong KongApplications are invited for appointment as Post-doctoral Fellow(3 posts) in the Department of Chemistry (Ref.: 503222),to commence as soon as possible for one year, with the possibilityof renewal subject to satisfactory performance and fundingavailability.Applicants should possess a Ph.D. degree in Chemistry orBiochemistry. They should have experience in the research area ofsynthetic chemistry, biochemistry, or molecular biology. Fluency inwritten and spoken English, good organizational skills, a strongsense of responsibility, the ability to work independently andself-motivation are essential. The appointees are expected to workon the projects in chemical biology or medicinal chemistry researchunder the supervision of Professor Xuechen Li. Enquiries about theposts should be sent to Professor Li at [email protected] highly competitive salary commensurate with qualifications andexperience will be offered, in addition to annual leave and medicalbenefits. At current rates, salaries tax does not exceed 15% ofgross income.The University only accepts online application for the above posts.Applicants should apply online and upload an up-to-date C.V. Reviewof applications will commence as soon as possible and continueuntil September 1 , 2021 , or until the posts arefilled, whichever is earlier.Advertised: Feb 8, 2021 (HK Time)Applications close: Sep 1, 2021 (HK Time)last_img read more

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SRA ‘wrong to pursue costs via conduct rules’

first_imgThe Solicitors Regulation Authority was wrong to use professional conduct rules to pursue a former practitioner for costs, a tribunal has found. David Bellchamber had been ordered to pay fixed costs adding up to £850 in connection with a 2011 tribunal rebuke and subsequent unsuccessful appeal. He refused to pay, arguing the costs were excessive. In March the SRA took the matter to the Solicitors Disciplinary Tribunal, claiming Bellchamber had failed to comply with the costs issue in an ‘open, timely and co-operative manner’. However the SDT found that Bellchamber had been ‘entirely open’ in his refusal to pay. The tribunal found the SRA was no different to any other litigant acting as a claimant and should have issued civil proceedings to recover the sum. An SRA spokesperson said: ‘The cost of delivering sanctions should be borne by those individuals who are disciplined. We are considering the next appropriate steps to recover the profession’s money in light of the SDT’s decision.’last_img read more

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6G to Use Ultra-Rapid Electro-Optical Modulators to Convert Terahertz into Optical Signals

first_imgWhile the world eagerly waits to use the full potential of 5G cellular technology, researchers are now already working on technologies for the next generation of wireless data transmission – “6G”. The sixth generation update is expected to have far higher transmission rates and shorter delays than 5G, and also an increased device density, with artificial intelligence (AI) playing an important role. But on the way towards the sixth generation cellular network, many challenges have to be mastered regarding both individual components and their interaction.Future wireless data networks will have to reach higher transmission rates and shorter delays, while supplying an increasing number of end devices. For this purpose, network structures consisting of many small radio cells will be required. To connect these cells, high-performance transmission lines at high frequencies up to the terahertz range will be needed. Moreover, seamless connection to glass fiber networks must be ensured, if possible. Addressing the challenge, researchers at the Karlsruhe Institute of Technology (KIT), as published in the journal Nature Photonics, have used ultra-rapid electro-optical modulators to convert terahertz data signals into optical signals.The next generation of wireless networks will consist of a number of small radio cells to quickly and efficiently transmit large data volumes. These cells will be connected by transmission lines, which can handle tens or even hundreds of gigabits per second per link. The necessary frequencies are in the terahertz range, i.e. between microwaves and infrared radiation in the electromagnetic spectrum. In addition, wireless transmission paths have to be seamlessly connected to glass fiber networks. In this way, the advantages of both technologies, i.e. high capacity and reliability as well as mobility and flexibility, will be combined.Scientists of the KIT Institutes of Photonics and Quantum Electronics (IPQ), Microstructure Technology (IMT), and Radio Frequency Engineering and Electronics (IHE) and the Fraunhofer Institute for Applied Solid State Physics IAF, Freiburg, have now developed a promising approach to converting data streams between the terahertz and optical domains. As reported in Nature Photonics, they use ultra-rapid electro-optical modulators to directly convert a terahertz data signal into an optical signal and to directly couple the receiver antenna to a glass fiber.In their experiment, the scientists selected a carrier frequency of about 0.29 THz and reached a transmission rate of 50 Gbit/s. According to Professor Christian Koos, Head of IPQ and Member of the Board of Directors of IMT, the modulator is based on a plasmonic nanostructure and has a bandwidth of more than 0.36 THz. The results reveal the great potential of nano-photonic components for ultra-rapid signal processing. The concept demonstrated by the researchers will considerably reduce the technical complexity of future radio base stations and enable terahertz connections with very high data rates – several hundred gigabits per second are feasible.Click here to read the published paper.last_img read more

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