Stable RuIr Nanoalloy Catalyst for Levulinic Acid Hydrogenation Reaction by Jingru Wang, Xianshu Dong, Yuping Fan, Yingyong Wang, Xiangyun Guo

Subjects: “…RuIr alloy…”
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Design of beamforming for IRS multi-partition-aided THz multi-subarray by Zufan ZHANG, Rui TANG

“…In the IRS-aided THz communication system, in order to break the channel sparsity limitation on the system spatial multiplexing gain, a hybrid beam forming architecture with wide-spaced multi-subarrays at the transceiver/transmitter side was proposed and the transmission scheme of IRS multi-partition-aided THz multi-subarrays was designed.Firstly, a non-convex objective function with multivariate coupling and non-convex constraints was constructed based on the principle of maximizing spectrum efficiency.Then, the optimization problem was decoupled into two easy-to-solve sub-problems, namely, the reflection coefficient matrix design of IRS and the hybrid beamforming matrix design at the transceiver/receiver.Finally, the Riemannian manifold optimization algorithm was used to calculate the reflection coefficient matrix of IRS, and the closed solution of the hybrid beamforming matrix design at the transceiver/receiver was obtained through mathematical derivation.Simulation results show that compared with the baseline scheme, the proposed scheme can achieve better spectrum efficiency.…”
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Sugardating - Rufferi, udnyttelse og mellemmandsvirksomhed i den digitale tidsalder by Nicolaj Sivan Holst

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Prof. Dr. Katarina Čufar received the Jesenko Lifetime Achievement Award by Marko Petrič, Milan Šernek

“…This is the third award for Katarina Čufar within just a few months, as at the end of 2020 she also received the Golden Plaque from the University of Ljubljana and the Zois Prize of the Republic of Slovenia for significant scientific achievements and exemplary teaching. …”
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Dr. Ferhat Ca'biri ile Tunus İbadîleri Üzerine Söyleşi by Mehmet Mahfuz Söylemez

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Er der betænkeligheder ved udviklingen i den moderne kriminalitetsbekæmpelse? by K. Kirchheiner

“…Intet resum´e…”
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Electrochemical corrosion of Al-Pd alloys in HCl and NaOH solutions by Palcut M., Ďuriška L., Špoták M., Vrbovský M., Gerhátová Ž., Černičková I., Janovec J.

“…Journal of Mining and Metallurgy. Section B: Metallurgy…”
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Performance enhancement scheme for IRS-assisted cognitive backscatter communication network by Bin LYU, Yi CAO, Jian LI, Ting QI

“…In order to achieve the self-sustainable cognitive radio network （CRN） and improve its communication efficiency， an efficient multi-mode switching scheme assisted by the intelligent reflecting surface （IRS） for the overlay scenario was proposed.In particular， the secondary transmitter （ST） could work in either backscatter communication （BackCom） mode or harvest-then-transmit （HTT） mode.The IRS was exploited to enhance the energy harvesting， information backscattering， and information transmission efficiencies at the ST.To maximize the system sum-rate， an optimization problem about the phase shirts at the IRS， time scheduling， and power allocation was formulated.Since the formulated problem was non-convex， an efficient block coordinate descent （BCD） based algorithm was proposed to achieve the sub-optimal solution.Simulation results confirm that the proposed scheme can achieve up to 200% sum-rate gain over the benchmark schemes.…”
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Antiferromagnetic Phase Transition in Cr2As via Anisotropy of Exchange Interactions by V. I. Valkov, A. V. Golovchan, Upali Aparajita, Oleksiy Roslyak

“…The electronic structure of antiferromagnetic Cr2As is investigated. Anisotropy of exchange interactions between chrome sublattices is determined JXCrI−CrII=4.77 meV,JYCrI−CrII=−6.36 meV. …”
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Leadership crisis in African higher education in the 4IR: lesson(s) for the future by Chinaza Uleanya

Subjects: “…Fourth Industrial Revolution (4IR) era…”
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Metodeveilederen i Nav<subtitle>støttespiller, kunnskapsmegler og fanebærer</subtitle> by Karianne Nyheim Stray, Talieh Sadeghi, Mette Sønderskov

“…Resultatene viser at metodeveilederne spiller en avgjørende rolle i å støtte jobbspesialister, men at rollen kjennetegnes av tre dilemmaer: 1) faglig ledelse uten personalansvar, 2) utfordringer med å forsvare Supported Employment (SE)-metodikken i møte med tradisjonelle Nav-praksiser, og 3) behov for kontinuerlig forankring. …”
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Od Ostroroga do „Pszczelnictwa Współczesnego” – zarys wielkopolskiego piśmiennictwa pszczelniczego by Roman Tomaszewski

“…Biorąc pod uwagę bogactwo poruszonego tematu, a przy tym objętość jednego artykułu, starano się w nim przedstawić ważniejsze dzieła książkowe i czasopisma, a jednocześnie w miarę możliwości ludzi, którzy często prócz związków z pszczelarstwem zapisali się dzięki swej różnorodnej działalności na kartach historii regionu. …”
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Ecological-trophic structure of soil microbial communities in the the middle Ob floodplain by Ellina G. Nikitkina, Inna V. Lushchaeva, Victor A. Nikitkin, Sergey N. Kirpotin, Larisa G. Kolesnichenko

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Conformally Flat Pseudoprojective Symmetric Spacetimes in fR,G Gravity by Uday Chand De, Sameh Shenawy, Abdallah Abdelhameed Syied, Nasser Bin Turki

“…Finally, we investigate conformally flat  PPS4 spacetimes and conformally flat  PPS4 perfect fluids in fR,G theory of gravity, and amongst many results, it is proved that the isotropic pressure and the energy density of conformally flat perfect fluid  PPS4 spacetimes are constants and such perfect fluid behaves like a cosmological constant. …”
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Effects of El Nino Southern Oscillation on the Discharge of Kor River in Iran by Morteza Mohsenipour, Shamsuddin Shahid, M. J. Nazemosadat

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Dental Education Digitalization: Virtual Reality (VR) and Augmented Reality (AR) by Kaan Orhan, Merve Onder

Subjects: “…ar…”
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Mobile AR/VR in 5G based on convergence of communication and computing by Yiqing ZHOU, Bule SUN, Yanli QI, Yan PENG, Ling LIU, Zhilong ZHANG, Yitong LIU, Danpu LIU, Zhaoxin LI, Lin TIAN

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Alder, køn og social status ved klinisk undersøgelse for alkoholpåvirkethed by I. Andersen, E. Vad, I. Mark

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Kontroll av ekstraordinære etterforskningsmetoder - overvåkningssamfunnet og den nye teknikk by Nils Dalseide

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Retssikkerhet og rettslig kontroll under fullbyrdelse av frihetsberøvende sanksjoner by Gerd Benneche

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