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Chlorine-mediated surface reconstruction enables highly active and stable ▫▫ for acidic chlorine evolution
No full textThe electrochemical chlorine evolution reaction (CER) is central to seawater electrolysis for converting Cl to Cl2, yet its practical application is hindered by the high cost and Cl-coordination-induced instability of conventional Ir and Ru-based catalysts. Herein, we present an electrolyte Cl-mediated reconstruction of Co3O4 xClx layer formed on Co3O4 in acidic saline solution. This in situ reconstructed layer enables highly efficient and durable acidic CER. Through a combination of in situ and ex situ characterizations, we show that the spontaneously incorporated Cl induces structural defects and modulates the oxidation behavior of Co sites, facilitating rapid oxidation of tetrahedral Co2+ at low potentials to initiate CER while inhibiting over-oxidation of octahedral Co3+ at high potentials. The resulting catalyst achieves 97% Cl2 selectivity with a low overpotential of ~0.15 V at 10 mA cm 2 while maintaining stable operation for more than 250 h. This work provides a simple and effective electrolyte-mediated reconstruction strategy to enhance both the selectivity and stability of non-precious-metal catalysts for acidic chlorine evolution
A novel chirp-signal framework for chaotic map construction and PRBG applications
No full textThis work proposes a systematic approach for constructing discrete chaotic systems from chirp signals and illustrates it through two representative maps. Detailed analysis shows that the resulting systems exhibit complex dynamics, including crises, period-doubling transitions to chaos, and, in some regimes, robust chaos. With multiple control parameters and high Lyapunov exponents, the maps demonstrate strong sensitivity to initial conditions, as confirmed through bifurcation diagrams and Lyapunov exponent plots. The maps are integrated into a pseudo-random bit generator (PRBG) to evaluate their statistical suitability, and both pass all tests of the NIST Statistical Test Suite. Additional evaluations include key-space estimation, operation-based computational complexity, and execution speed measurements. The results indicate that the proposed chirp-based maps are effective candidates for chaotic PRBG design and related applications
The limits of freedom
No full textSyntactic investigations of the so called ‘free word order’ languages typically focus on a small set of non-canonical orderings within a given compositional meaning that are attributed either to a single displacement operation (e.g. ‘left-branch extraction’) or some other factor (e.g. information structure). An empirical assessment of acceptability patterns over the full set of orderings available within the space of permutational possibilities is rarely undertaken on a non-trivial scaleconsequently, the full extent of actual word order flexibility available to the speakers of these languages is difficult to estimate. In this study, using the factorial methodology of experimental syntax, we report the results of a sentence acceptability judgment task in Serbo-Croatian which includes a full set of permutations over a five-word kernel. Analyses of variance in the collected patterns of acceptability data permit one to quantitatively assess the ‘weight’ or impact of each displacement and their combinations on acceptability of respective permutational variants. They also suggest that despite having to deal with an (expectedly) larger spectrum of acceptable permutational variants, speakers of Serbo-Croatian are sensitive to abstract structural properties such as constituency, special status of clausal left-periphery as well as distinct origin of particular displacement types. We discuss some methodological aspects of larger-scale permutational studies and their potential benefits as a fine-tuned instrument for probing into the phenomenon of free word order at the level of native speakers’ intuitions
Remembrance and monument
No full textPrispevek predstavlja raziskavo Moradas de Branislava Susnik | Bivališča Branislave Sušnik, ki se je od svojega začetka leta 2019 izrazila v različnih oblikah: dvojezičnem portalu (marec–april 2020), razstavi (julij 2020), dokumentarnem filmu o rojstni hiši Branislave Sušnik Hiša med vodami Henrike von Dewitz in nazadnje v dvojezični monografiji Bivališča Branislave Sušnik: dokumenti, besedila, podobe in pričevanja. Prispevek opiše multimedijski projekt, v katerem smo iz-vedli raziskavo o dvojni identiteti in dvojnem pomenu dela Branislave Sušnik v kulturnih okoljih Slovenije in Paragvaja. Za izhodišče smo vzeli Medvode, rojstni kraj Branislave Sušnik, zasnovan pa je interdisciplinarno in transdisciplinarno. Prinaša rezultate raziskav, ki so bile izvedene v Medvodah, pa tudi prevedena in avtorska besedila ter izvirno in doslej še neobjavljeno gradivo, ki so ga prispevali umetniki, pisatelji in raziskovalci iz Slovenije in Paragvaja. To z različnih vidikov (besedila, film, vizualno gradivo, splet) ponuja raznovrstnost pogledov na delo, lik in dediščino slovensko-paragvajske znanstvenice Branislave Sušnik.The article presents Moradas de Branislava Susnik | Branislava Sušnik‘s Dwellings, a research that has assumed various forms since its initiation in 2019: as a bilingual portal (March–April 2020), an exhibition ( July 2020), a documentary film about the birthplace of Branislava Sušnik, A House InBetween Waters, by Henrike von Dewitz (in the making – September 2020) and, a bilingual monograph Branislava Susnik’s Dwellings: Documents, Texts, Images and Testimonials. Within the framework of this multimedia project, research was conducted into the dual identity, affilia-tion and dual meaning of Branislava Sušnik’s work in the cultural environments of Slovenia and Paraguay. Taking Medvode, Branislava Sušnik’s birthplace, as a starting point, the project adopts both inter- and transdisciplinary approach. In addition to the results of the research undertaken in Medvode, it includes translated and original works, as well as unprecedented and previously unpublished material contributed by artists, writers and researchers from Slovenia and Paraguay. This material provides a variety of views (considered from different angles: written works, film, visual material, the Web) of the work, personality and legacy of the Slovenian-Paraguayan scientist Branislava Sušnik
Drevo Branislave Sušnik
No full textV prispevku sta predstavljena ženski in moški princip kraja, pa tudi simbolni pomen drevesa