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A　three－dimensional　ocean　general　circulation　model　for　mesoscale　eddies──Ⅰ　Meander　simulation　and　linear　growth　rate

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Acta Oceanologica Sinica 1996年第1期15卷 31-53页

作者： Wang Jia and moto ikeda Rosenstiel School of Marine and Atmospheric Science University of Miami 4600 Rickenbacker Causeway Miami FL 33149 United States Graduate School of Environmental Earth Science Hokkaido University Sapporo 060 Japan

A three-dimensional, primitive-equation model, Blumberg's ECOMSI (Estuarine and Coastal Ocean Model with a Semi-Implicit scheme), is modified and applied to the simulation of the ocean mesoscale eddies and unstable baroclinic waves across a density front in a channel. The model uses a semi-implicit scheme to remove the most stringent Courant-Friedriechs-Levy (CFL) constraint. We have modified this model by introducing a predictor-corrector scheme to remove the inertial instability due to the Euler forward scheme in time used in the ECOMSI. Instead, the neutral amplification of the eigenvalue is obtained for the inertial oscillation. Thus,the new version of the model (called the predictorcorrector or P-C version) is able to simulate the unstable baroclinic waves and ocean mesoscale eddies in a very low viscosity environment. Meanders of a current with some similarity to mesoscale features are well reproduced. The unstable baroclinic waves are examined for flat, positive (same sense as isopycnal tilt) and negative bottoms. The growth rates with flat, gentle, medium, and steep slopes and with different wavelength (wave number) channels are discussed. A gentle positive slope significantly suppresses the meandering wave growth rate which slightly shifts to a lower wave number coml. Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149, USA. Email: Jia. wang rsmas. miami. edu. 2. Graduate School of Environmental Earth Science, Hokkaido University, Sapporo. Japan 060. Email: mikeda eoas. hokudai. ac. jp. pared to the flat bottom. A gentle 11egative slope, however, favors the 'va\'e growth with foe maximum shifting towardsthe higher wave number. When the negative slope becomes steeper, the growth rate slgnlflcantly reduces correspondingly.

关键词： mesoscale and Meander

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A three-dimensional ocean general circulation model for mesoscale eddies——Ⅱ Diagnostic analysis

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Acta Oceanologica Sinica 1997年第1期16卷 29-43页

作者： moto ikeda Graduate School of Environmental Earth Science Hokkaido University Sapporo Japan 060.

A three-dimensional density field associated with mesoscaie unstable waves generated by the 3-D, primitive-equation model (Wang and ikeda, 1996) is provided to the quasi-geostrophic pressure tendency and ω-equations, and to the (ageostrophic) Q-vector equation. Diagnostic analyses, analogous to the approaches in meteorology: ω-equation and Q-vector method, are for the first time developed to examine the mesoscaie dynamical processes and mechanisms of the unstable waves propagating in the mid-latitude ocean. The weaknesses and strengths of these two diagnostic approaches are evaluated and compared to the model results. The Q-vector method is then recommended to diagnose the vertical motion associated with the mesoscaie dynamics from a hydrographic CTD (conductivity-temperature-depth) array, while the quasi-geostrophic equations produce some small-scale features (errors) in the diagnosed fields.

关键词： Diagnostic analysis A three-dimensional ocean general circulation model for mesoscale eddies

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Modeling seasonal variations of ocean and sea ice circulation in the Beaufort and Chukchi Seas:A model-data fusion study

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Chinese Journal of Polar Science 2008年第2期19卷 168-184页

作者： Wang Jia Kohei Mizobata Hu Haoguo Jin Meibing Zhang Sheng Walter John-son Koji Shimada moto ikeda NOAA Great Lakes Environmental Research Laboratory ~ GLERL） 4840 S State Road Ann Arbor MI 48108USA Department of Ocean Sciences Tokyo University of Marine Science and Technology 4-5-7 Kounan Minato-kuTokyo 108-8477 Japan Cooperative Institute for Limnology and Ecosystems Research （ CILER） School of Natural Resources and Environment University of Michigan 4840 S State Road Ann Arbor MI 48108 USA International Arctic Research Center University of Alaska Fairbanks Fairbanks AK 99775-7340 USA Minerals Management Service Department of Interior 381 Elden Street Herndon VA 20170-4817 USA Graduate School of Earth and Environmental Science Hokkaido University Sapporo Hokkaido Japan

A 3.8-kin Coupled Ice-Ocean Model （C1OM） was implemented to successfully reproduce many observed phenomena in the Beaufort and Chukchi seas, including the Bering-inflow-originated coastal current that splits into three branches： Alaska Coastal Water （ACW） , Central Channel, and Herald Valley branches. Other modeled phenomena include the Beaufort Slope Current （BSC） , the Beaufort Gyre, the East Siberian Current （ ESC）, mesoscale eddies, seasonal landfast ice, sea ice ridging, shear, and deformation. Many of these downscaling processes can only be captured by using a high-resolution CIOM, nested in a global climate model. The seasonal cycles for sea ice concentration, thickness, velocity, and other variables are well reproduced with Solid validation by satellite measurements. The seasonal cycles for upper ocean dynamics and thermodynamics are also well reproduced, which include the formation of the cold saline layer due to the injection of salt during sea ice formation, the BSC, and the subsurface upwelling in winter that brings up warm, even more saline Atlantic Water along the shelfbreak and shelf along the Beaufort coast.

关键词： ocean and sea ice circulation Beaufort and Chukchi Seas model-data fusion.

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Modeling Arctic Ocean heat transport and warming episodes in the 20th century caused by the intruding Atlantic Water

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Chinese Journal of Polar Science 2008年第2期19卷 159-167页

作者： Wang Jia Jin Meibing Jun Takahashi Tatsuo Suzuki Igor V Polyakov Kohei Mizobata moto ikeda Fancois J. Saucier Markus Meier NOAA Great Lakes Environmental Research Laboratory 4840 S State Road Ann Arbor Michigan 48108 USA International Arctic Research Center University of Alaska Fairbanks 930 Koyukuk Dr. Fairbanks AK 99775USA Frontier Research Center for Global Change 3173-25 Showamachi Kanazawa-ku Yokohama City Kanagawa236-0001 Japan Department of Ocean Science Tokyo University of Marine Science and Technology Tokyo Japan Graduate School of Earth and Environmental Science Hokkaido University Sapporo Hokkaido Japan Institute of Ocean Science University of Quebec at Rimouski 310 Ursulines Street Rimouski G5L 3A1 Canada Rossby Centre Swedish Meteorological and Hydrological Institute Sweden

This study investigates the Arctic Ocean warming episodes in the 20th century using both a high-resolution coupled global climate model and historical observations. The model, with no flux adjustment, reproduces well the Atlantic Water core temperature （AWCT） in the Arctic Ocean and shows that four largest decadalscale warming episodes occurred in the 1930s, 70s, 80s, and 90s, in agreement with the hydrographic observational data. The difference is that there was no pre-warming prior to the 1930s episode, while there were two pre-warming episodes in the 1970s and 80s prior to the 1990s, leading the 1990s into the largest and prolonged warming in the 20th century. Over the last century, the simulated heat transport via Fram Strait and the Barents Sea was estimated to be, on average, 31.32 TW and 14.82 TW, respectively, while the Bering Strait also provides 15.94 TW heat into the west- ern Arctic Ocean. Heat transport into the Arctic Ocean by the Atlantic Water via Fram Strait and the Barents Sea correlates significantly with AWCT （ C = 0.75 ） at 0- lag. The modeled North Atlantic Oscillation （NAO） index has a significant correlation with the heat transport （ C = 0.37 ）. The observed AWCT has a significant correlation with both the modeled AWCT （ C =0.49） and the heat transport （ C =0.41 ）. However, the modeled NAO index does not significantly correlate with either the observed AWCT （ C = 0.03 ） or modeled AWCT （ C = 0.16 ） at a zero-lag, indicating that the Arctic climate system is far more complex than expected.

关键词： Arctic Ocean heat transport warming episodes modeling.

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北太平洋海冰异常对夏季东亚副热带季风降水影响的机制

北太平洋海冰异常对夏季东亚副热带季风降水影响的机制

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中国气象学会2004年年会

作者：赵平张向东周秀骥 moto ikeda 殷永红中国气象科学研究院 International Arccic Research Center University of Alaska Fairbanks USA Graduate School of Environmental Earth Science Hokkaido University Japan 中国气象科学研究院 International Arccic Research Center University of Alaska Fairbanks USA Graduate School of Environmental Earth Science Hokkaido University Japan 中国气象科学研究院

用观测资料诊断分析和数值模拟方法,本文研究了春季白令海和鄂霍次克海的海冰范围极端异常与东亚夏季风降水变率之间的关系和相关的动力学机制,结果表明:当春季白令海和鄂霍次克海的海冰范围偏少时,夏季东亚高纬度地区存在一个异常高压... 详细信息

用观测资料诊断分析和数值模拟方法,本文研究了春季白令海和鄂霍次克海的海冰范围极端异常与东亚夏季风降水变率之间的关系和相关的动力学机制,结果表明:当春季白令海和鄂霍次克海的海冰范围偏少时,夏季东亚高纬度地区存在一个异常高压,该异常高压使我国南方冷空气活动频繁,阻止了东亚副热带夏季风向北推进,使梅雨锋及其降水加强,其中欧洲陆面过程是连接春季海冰与东亚夏季风之间的桥梁

关键词：北太平洋海冰东亚副热带夏季风降水诊断分析数值模拟

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Measurements of the Ca II infrared triplet lines of young stellar objects

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Research in Astronomy and Astrophysics 2013年第10期13卷 1189-1201页

作者： Yoichi Itoh Keiko moto'oka Yoichi Itoh The Saga Prefecture Space & Science Museum 16351 Nagashima Takeo Takeo Saga 843-0021 Japan Nishi-Harima Astronomical Observatory Center for Astronomy University of Hyogo 407-2 Nishigaichi Sayo Hyogo 679-5313 Japan yitoh @nhao.jp

Equivalent widths and line widths of Ca II infrared triplet emission lines were measured in the high-resolution optical spectra of 39 young stellar *** found that the equivalent widths of the emission lines decrease with stellar *** has often been claimed that strong chromospheric activity is generated by a dynamo process caused by fast rotation of the ***,we found no clear correlation between the strength of the Ca II lines and the stellar rotation ***,we found that the objects with high mass accretion rates had stronger Ca II emission *** correlation supports the turbulent chromosphere model or the magnetic accretion theory for classical T Tauri *** also noticed that the equivalent widths of Ca II lines in transitional disk objects are one-tenth of those in classical T Tauri stars,even if the masses of the circumstellar disks are comparable.

关键词： stars:pre-main sequence stars:emission lines

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针焦电极在石墨化过程中的晶胀机理和晶胀抑制剂的作用

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新型炭材料 1991年第1期7卷 5-13页

作者： Ken-Ichi Fuji moto 李悦

本文根据文献的试验结果,阐述了针焦电极在石墨化过程中的晶胀机理。石墨化时因孔壁变软,而发生不规则膨胀,使气体可从针焦颗粒的孔隙间逸出,因此,气体逸出的速率和温度范围,逸出气体的性质,杂原子,如焦炭中的硫和氮等逸出的位置,以及... 详细信息

本文根据文献的试验结果,阐述了针焦电极在石墨化过程中的晶胀机理。石墨化时因孔壁变软,而发生不规则膨胀,使气体可从针焦颗粒的孔隙间逸出,因此,气体逸出的速率和温度范围,逸出气体的性质,杂原子,如焦炭中的硫和氮等逸出的位置,以及焦炭结构(尤其是颗粒大小)、孔隙(孔洞和裂缝)、和最佳取向情况等都会影响晶胀的程度。这些因素与气体逸出产生的压力,焦炭软化时间和气体逸出条件,以及孔壁压强对气体阻力有关。使用粘结剂和浸渍沥青能够改善焦炭颗粒内部孔隙,因为它们能够扩散到作为电极骨架的焦炭颗粒孔隙内。石墨化也导致碳的收缩,因此,收缩和晶胀都影响到电极的大小。这两种作用的效果是相反的。本文以上述影响晶胀因素为基础,对晶胀程度作定量的描述,虽然在孔径某一范围内(0.1～1μm)晶胀程度增加,而扩大到1～100μm时,晶胀被抑制的问题尚不清楚,但依据此机理,仍可提出如下的抑制晶胀方法: 1.缓和石墨化升温速度。 2.吸收释放出的杂原子。 3.控制气化过程扩大骨架焦炭的孔隙。 4.清除针焦或其起始原料的杂原子。根据晶胀机理,本文讨论了晶胀抑制剂的作用。

关键词：针焦电极石墨化晶胀抑制剂

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克服多标准无线电基站发射机测试的挑战

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中国集成电路 2013年第11期22卷 64-66页

作者： moto Itagaki 安捷伦科技公司

下一代基站发射机和接收机不仅采用单一无线制式的多载波（MC）技术,并且引入了在单一发射机路径中的多种制式,这些对带宽提出了更宽的要求.例如,GSM、W-CDMA和LTE多载波可以同时从一个多标准无线电（MSR）基站单元进行传输.蜂窝网络可... 详细信息

下一代基站发射机和接收机不仅采用单一无线制式的多载波（MC）技术,并且引入了在单一发射机路径中的多种制式,这些对带宽提出了更宽的要求.例如,GSM、W-CDMA和LTE多载波可以同时从一个多标准无线电（MSR）基站单元进行传输.蜂窝网络可以支持多种制式,这对于降低基站规模和成本而言十分重要.

关键词：发射机无线电基站标准测试 W-CDMA 蜂窝网络多载波

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应对多标准无线电基站发射机测试的挑战

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电子设计技术 EDN CHINA 2012年第6期19卷 55-56页

作者： moto Itagaki 安捷伦科技公司

下一代基站发射机和接收机将会支持更宽的带宽,不仅包括采用单一无线制式的多载波（MC）,还包括在单一发射机路径中的多种制式。例如,GSM、W-CDMA和LTE多载波可以同时从一个多标准无线（MSR）基站单元进行传输。蜂窝网络可以支持多种制式,

关键词：多标准无线电基站发射机安捷伦

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Anterior Compartment Syndrome after an Achilles Tendon Repair: A Case Report

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Open Journal of Orthopedics 2016年第3期6卷 47-51页

作者： Kobayashi moto Miyamoto Seiya Kashiwagura Takeshi Nozaka Koji Chida Shuichi Miyakoshi Naohisa Shimada Yoichi Department of Orthopedic Surgery Hiraka General Hospital Yokote Japan Department of Orthopedic Surgery Nakadori General Hospital Akita Japan Department of Rehabilitation Akita City Hospital Akita Japan Department of Orthopedic Surgery Akita University Akita Japan

Compartment syndrome may cause irreversible dysfunction if not treated correctly. The occurrence of compartment syndrome is not recognized as a potential complication after Achilles tendon rupture, and only a small number of such cases have been reported. We report the case of a 16-year-old girl with rupture of the right Achilles tendon. On postoperative day 4, she experienced severe anterior ankle pain. A blood test revealed a creatine kinase level of 7976 IU/L;the pressure in the distal anterior compartment was 90 mmHg and proximal compartment was 40 mmHg (needle manometer method). Magnetic resonance imaging (MRI) revealed a signal change in the anterior compartment. Anterior compartment syndrome was diagnosed on the basis of clinical findings, pressure measurements, and MRI findings. Emergency surgery was performed, and the anterior fascia was released. However, the dysfunction in the form of limited range of ankle motion remained. The cause of the compartment syndrome after Achilles tendon rupture was unclear. The patient’s involvement in basketball and positioning of the ankle in plantar flexion with a cast might have been contributing factors in our case. We need to consider the possibility that compartment syndrome may occur after Achilles tendon rupture.

关键词： Achilles Tendon Rupture Compartment Syndrome Complication

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