Article
Forestry
V. Shanin, A. Juutinen, A. Ahtikoski, P. Frolov, O. Chertov, J. Ramo, A. Lehtonen, R. Laiho, P. Makiranta, M. Nieminen, A. Lauren, S. Sarkkola, T. Penttila, B. Tupek, R. Makipaa
Summary: The study used a simulation model to analyze the impact of continuous-cover forestry on CO2 and CH4 emissions in nutrient-rich drained peatland sites in southern Finland. Results showed that the peatland forest acted as a carbon sink with low and medium harvesting intensities, but became a carbon source with high harvesting intensities due to increased soil methane emissions and decreased tree production. The simulations highlight a significant trade-off between maintaining carbon in drained peatland forests and generating harvest revenues.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Materials Science, Ceramics
Yang Liu, Lulu Liu, Peng Li, Peng Fu, Juan Du, Ziliang Li, Huaiyong Li, Jigong Hao, Wei Li, Huarong Zeng
Summary: In our work, lead-free ferroelectric ceramics based on (1-x) (0.935BNT-0.065BaTiO3)-xSrRECoO4 (BNBT6.5-xSREC, RE = Pr, Eu, Sm) were prepared, exhibiting large electrostrain and photoluminescence effect. By introducing SREC dopant into BNBT6.5, the long-range ferroelectric order of ceramics was disrupted, resulting in a weak polar state dominated by polar nanoregions. The electrostrain was greatly promoted due to the reversible transition of PNRs under the electric field. When the content of SREC was 0.012, large field-induced strains of 0.38-0.44% were obtained, equivalent to a large signal d33* (Smax/Emax) of 543-586 pm/V. The modified ceramics showed strong photoluminescence with bright red or orange emissions, depending on the type of RE elements, relying on the luminescence effect of RE3+ ions in SREC. However, the strong emission was strongly quenched in samples with a higher SREC content due to the photoluminescence quenching effect of Co3+ ions in the SREC dopant. The quenching model can be attributed to the formation of non-radiative recombination centers induced by Co3+ ions, which affect the energy transition of RE3+ ions from the excited state to the ground state.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Ceren Kutahyali Aslani, Vladislav V. Klepov, Mahmoud A. A. Aslani, Hans-Conrad Zur Loye
Summary: The detailed structural analysis and luminescence properties of novel iodates Ln(2)(IO3)(3)(IO4) were successfully obtained via mild hydrothermal synthesis. The structures were determined by single-crystal X-ray diffraction, with the band gaps of La-2(IO3)(3)(IO4) and Nd-2(IO3)(3)(IO4) estimated to be 3.0 and 3.4 eV. La-2(IO3)(3)(IO4) was used as a host matrix for Eu, Tb, and Dy doping to introduce luminescence.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Physical
Ravi P. N. Shankar, Fabio Orlandi, Pascal Manuel, Weiguo Zhang, P. Shiv Halaysyamani, A. Sundaresan
Summary: The study investigates the structural, magnetic, and electrical properties of a new family of doubly ordered perovskites NaLnNiWO(6) synthesized under high-pressure and high-temperature conditions. These materials exhibit a unique crystal structure with antiferromagnetic order of Ni2+ ion moments and a polar structure without electric polarization but with dielectric anomalies.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Ornithology
Francisco Santander, Sergio O. Alvarado, Cristian F. Estades
Summary: This study explored the impact of forest cover on the abundance of habitat-generalist and forest-specialist raptors in South-central Chile. The research found that forest specialist species showed a positive relationship with local forest cover, while most habitat-generalist species exhibited a negative or non-linear relationship with forest cover. Interestingly, the models with the highest statistical support included total forest cover (native forest + plantations) as a predictor, indicating that habitat-generalist species did not significantly differentiate between natural and artificial forests.
ARDEOLA-INTERNATIONAL JOURNAL OF ORNITHOLOGY
(2021)
Article
Chemistry, Physical
Kaiming Zhu, Zhanglin Chen, Hui Liu, Xin Yi, Yihuan Wang, Junjie Chen, Xuanyi Yuan, Guanghua Liu
Summary: A series of CaAlSiN3:Ln (Ln=Eu, Ce, Dy, Pr, Tb, Gd, Sm, Tm, Nd) phosphors were successfully prepared by combustion synthesis, and their polychromatic visible afterglow emissions were observed. CaAlSiN3:Eu2+ and CaAlSiN3:Ce3+ showed the best red and yellow long persistent luminescence with persistent times of 4980 s and 4860 s, respectively. Eu2+, Ce3+ co-doped CaAlSiN3 exhibited enhanced red long persistent luminescence with a persistent time of 6300 s, attributed to a more appropriate trap depth distribution.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Zoran Mazej, Evgeny Goreshnik
Summary: In this study, under specific conditions, different compositions of Ln(XeF2) and Ln(XeF2)3 salts can be prepared by using LnF(3) and XeF2 with different molar ratios, along with a specific synthetic approach. The structure of the La atom is influenced by the molar ratio and temperature, leading to changes in the crystal structure.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Engineering, Chemical
Somayeh Dashti, Farzaneh Sadri, Sina Shakibania, Fereshteh Rashchi, Ahmad Ghahreman
Summary: This study investigated the synergistic effect of Cyanex 572 mixed with TBP on the extraction and separation of heavy rare earth elements erbium and terbium. The results showed that the mixture of 25% TBP + 75% Cyanex 572 could extract about 70% of erbium and 85% of terbium at pH 1.5, demonstrating effective separation.
MINERALS ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
H. A. Rahnamaye Aliabad, H. Vahidi, M. Samsami, Iftikhar Ahmad, Gulten Kavak Balci
Summary: The optoelectronic, magnetic and thermoelectric properties of BaLn(2)ZnO(5) (Ln = Eu, Pr, Sm) insulators were studied using the FP-LAPW method. The compounds were found to be wide-band-gap insulators with suitable optical threshold energies for UV detectors and LEDs. The static dielectric function exhibited negative values and high reflectivity in the energy range of 10-12 eV. The magnetic moment at the Ln sites decreased with a decrease in f-state electron count, confirming the non-metallic nature of the compounds. The p-type BaLn(2)ZnO(5) and BaLn(2)ZnO(5) compounds doped with 1 x 1022 cm(-3) were shown to have potential applications in thermoelectric devices.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Ethics
Aurelie Mahalatchimy, Pin Lean Lau, Phoebe Li, Mark L. Flear
Summary: Gene-editing technologies are the subject of global competition and regulatory race, with EU-level legal regulation focusing on tensions around naturalness, morality and ethics, and medical objectives. Despite strong EU competence in the internal market, concerns around eugenics and human enhancement have shaped a multifaceted imaginary in relation to the use of gene-editing technologies. This imaginary not only limits EU-level regulation, but also seeks to ensure its legitimacy.
JOURNAL OF LAW AND THE BIOSCIENCES
(2021)
Article
Chemistry, Inorganic & Nuclear
Burak Ay, Emel Yildiz, Masaya Enomoto, Atsushi Okazawa, Norimichi Kojima
Summary: Various lanthanide complexes were synthesized and their crystal structures and magnetic properties were analyzed. It was found that the coordination network structure of the complexes is controlled by the positional isomer of pyridinedicarboxylate. Additionally, the gas storage capacities of the compounds for hydrogen and carbon dioxide were investigated.
Article
Nanoscience & Nanotechnology
R. Urakawa, W. Asano, M. Nishikawa, M. Kawahara, T. Nishi, D. Oshima, T. Kato, T. Ishibashi
Summary: Bi-substituted rare-earth iron garnets (Bi:RIG) exhibit excellent magneto-optical properties that increase with Bi content. This paper reports on the structure and magnetic properties of Bi2.5:RIG thin films prepared on GGG substrates. XRD analysis reveals that the Bi2.5:RIG films have the same orientation as the GGG substrates, and their lattice constants depend on the ionic radii of the rare-earth ions. MO measurements show typical Faraday spectra for Bi:RIGs. The magnetic anisotropy properties of Bi2.5:RIG films are investigated using ferromagnetic resonance measurement.
Article
Chemistry, Physical
Dewei Li, Liyuan Sun, Jichao Zhu, Lifang Hu, Dongcai Guo
Summary: A series of rare earth oxides electrocatalysts were prepared with optimized addition of rare earth for enhanced ORR activities. The study showed that ORR performance of rare earth oxides composited carbon catalysts can be improved through accommodating oxygen vacancies. The best composite catalyst was chosen for detailed exploration and the performance in rechargeable Zn-air battery was also investigated, laying a good foundation for further exploration of rare earth based ORR catalyst with higher performance.
APPLIED SURFACE SCIENCE
(2021)
Article
Physics, Condensed Matter
Memoona Mehmood, Muhammad Nasir Rasul, Altaf Hussain, Muhammad Amir Rafiq, Faisal Iqbal, Alina Manzoor, Muhammad Azhar Khan
Summary: In this study, the physical properties of novel antiperovskite materials XCRh3 (X = Cd, Ta, W, Re, Os, Ir, Pt, Au, Hg, Ce, Pr, Nd, Pm, Sm, Eu, Tb) were investigated using density functional theory. The study focused on structural, electronic, elastic, magnetic, and thermodynamic properties, and included the computation of mechanical parameters and analysis of thermodynamic properties under various pressures and temperatures.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Law
Kathrin Boehling, Maria Fernanda Marques Todeschini
Summary: Starting from 2021, the new Land Use, Land Use Change & Forestry Regulation will contribute to achieving carbon neutrality across the European Union. However, the regulation fails to fully utilize the potential of the European forest sector for climate mitigation. The limited scope of the regulation is attributed to coalitional politics and the behavior of the Commission.
JOURNAL FOR EUROPEAN ENVIRONMENTAL & PLANNING LAW
(2021)
Article
Forestry
A. Q. Nyrud, K. M. A. Heltorp, Anders Roos, Francisco X. Aguilar, Katja Lahtinen, Noora Viholainen, Sami Berghall, Anne Toppinen, B. J. Thorsen, Matleena Kniivila, Antti Haapala, Elias Hurmekoski, T. Hujala, H. F. Hoen
Summary: This study investigated public attitudes towards multi-storey wood buildings in seven European countries and found that the level of knowledge about wood buildings was lower in countries where brick, stone, and concrete were commonly used in construction, such as the United Kingdom, Germany, and Denmark. Finland and Sweden had the most positive attitudes towards wood buildings. The study also identified factors such as fire vulnerability, material solidity, indoor environment, and moisture vulnerability that influenced people's perception of wood buildings as a nice place to live.
SCANDINAVIAN JOURNAL OF FOREST RESEARCH
(2024)