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Mixed layer in the Sea of Japan:numerical simulation andlong-term data analysis

Acta Oceanologica Sinica 2005年第1期24卷 76-85页

作者： TRUSENKOVA Olga khrapchenkov fyodor ISHIDA Hajime V.I.Il'ichev Pacific Oceanological Institute Russian Academy of Sciences Vladivostok 690041 RussiaV.I.Il'ichev Pacific Oceanological Institute Russian Academy of Sciences Vladivostok 690041 RussiaFaculty of Engineering Kanazawa University Kanazawa 920-8667 Japan

Seasonal variation and topography of the mixed layer in the Sea of Japan are studied by comparison of results from long-term observation data analysis and from numerical simulation with the MHI oceanic model (Shapiro. 1998. Marine Hydrophysical Journal, 6: 26-40). The data are retrieved from Oceanographic A tlas of the Bering Sea, Okhotsk Sea, and Japan/East Sea (Rostov, Rostov, Dmitrieva, et al. 2003. Pacific Oceanography, 1(1):70-72). The simulated and long-term patterns are compared. An impact of surface buoyancy flux, wind, and convergence/divergence of surface currents upon the mixed layer in the Sea of Japan is analyzed.

关键词： numerical modeling circuktion of the Sea of Japan mixed layer depth seasonal variation spatial patterns

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Notes from underground

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作者： fyodor Dostoevsky translated and edited by Michael R. Katz.

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卡拉玛佐夫兄弟

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作者： (俄)陀思妥耶夫斯基(fyodor Dostoyevsky)

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Spatial avoidance of patches of polluted chernozem soils by soil invertebrates

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Insect Science 2009年第1期16卷 99-105页

作者： Konstantin B. Gongalsky Svetlana A. Belorustseva Daria M. Kuznetsova Alexander V. Matyukhin Lyubov A. Pelgunova fyodor A. Savin Alexander S. Shapovalov A.N. Severtsov Institute of Ecology and Evolution Russian Academy of Sciences Moscow Department of Invertebrate Zoology Faculty of Biology Moscow State University Moscow Department of Biogeography Faculty of Geography Moscow State University Moscow and 4Belogorye Nature Reserve Monastyrsky pereulok Borisovka Belgorod Region Russian Federation

Soil invertebrates and heavy metal concentrations are heterogeneously distributed in the soil of steppe plots surrounding an iron mining enterprise in southern Russia. This study assesses whether patches of high soil invertebrate abundance coincide with patches of low concentrations of pollutants. For this aim, spatial analysis by distance indices （SADIE） was applied. Three valleys in Belogorye Nature Reserve were chosen. One valley faced the tailing pond to the north and the other two faced south-east or south-west. Two sampling plots were chosen in each valley, 60 m apart from each other. On every plot 16 soil cores were collected from a grid of 4 × 4 units with a 5-m distance between each sample unit. Each soil core had an area of 76 cm2 and was 12-15 cm deep. All macroinvertebrates were hand-sorted and identified to family. Abundance of soil invertebrates was not controlled by patches of metal concentration in the soil. Epigaeic groups, like insects and other invertebrates inhabiting the litter layer, were not directly associated with local parameters of the soil. On the contrary, belowground invertebrate abundance （elaterid larvae and earthworms） showed significant dissociation with some heavy metal （Fe, Pb, Zn） concentrations in the soil. The patchiness of soil pollution may act as a leading factor ofbelowground soil invertebrate distribution. The spatial structure of animal populations in industrially transformed soils needs further research.

关键词： invertebrates macrofauna SADIE soil pollution spatial distribution

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白痴

白痴

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作者： (俄)F. 陀思妥耶夫斯基(fyodor Dostoyevsky)

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On-chip beam rotators,adiabatic mode converters,and waveplates through low-loss waveguides with variable cross-sections

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Light(Science & Applications) 2022年第8期11卷 1876-1890页

作者： Bangshan Sun fyodor Morozko Patrick S.Salter Simon Moser Zhikai Pong Raj B.Patel Ian A.Walmsley Mohan Wang Adir Hazan Nicolas Barré Alexander Jesacher Julian Fells Chao He Aviad Katiyi Zhen-Nan Tian Alina Karabchevsky Martin J.Booth Department of Engineering Science University of OxfordOxfordOX13PJUK School of Electrical and Computer Engineering Ben-Gurion University of the NegevP.O.B.653Beer-Sheva8410501Israel Institute of Biomedical Physics Medical University of InnsbruckMüllerstraße 446020InnsbruckAustria Ultrafast Quantum Optics group Department of PhysicsImperial College LondonLondonUK Department of Physics University of OxfordOxfordUK Erlangen Graduate School in Advanced Optical Technologies(SAOT) Friedrich-Alexander-University Erlangen-NürnbergPaul-Gordan-Straße 691052ErlangenGermany State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun130012China

Photonics integrated circuitry would benefit considerably from the ability to arbitrarily control waveguide cross-sections with high precision and low loss,in order to provide more degrees of freedom in manipulating propagating ***,we report a new method for femtosecond laser writing of optical-fiber-compatible glass waveguides,namely spherical phase-induced multicore waveguide(SPIM-WG),which addresses this challenging task with three-dimensional on-chip light *** in the heating regime with high scanning speed,precise deformation of cross-sections is still achievable along the waveguide,with shapes and sizes finely controllable of high resolution in both horizontal and vertical transversal *** observed that these waveguides have high refractive index contrast of 0.017,low propagation loss of 0.14 dB/cm,and very low coupling loss of 0.19 dB coupled from a single-mode ***-WG devices were easily fabricated that were able to perform on-chip beam rotation through varying angles,or manipulate the polarization state of propagating light for target *** also demonstrated SPIM-WG mode converters that provide arbitrary adiabatic mode conversion with high efficiency between symmetric and asymmetric nonuniform modes;examples include circular,elliptical modes,and asymmetric modes from ppKTP(periodically poled potassium titanyl phosphate)waveguides which are generally applied in frequency conversion and quantum light *** inside optical glass,these waveguides and devices have the capability to operate across ultra-broad bands from visible to infrared *** compatibility with optical fiber also paves the way toward packaged photonic integrated circuitry,which usually needs input and output fiber connections.

关键词： waveguide waveguides polarization

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