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Chinese Journal of Catalysis 2017年第3期38卷 426-433页

作者： Asep Bayu Surachai Karnjanakom katsuki kusakabe Abuliti Abudula Guoqing Guan 弘前大学科学技术研究生院日本弘前036-8560 弘前大学北日本新能源研究所日本青森030-0813 崇城大学纳米科学系日本熊本860-0082

Well dispersion of tin species in an isolated form is a quite challenge since tin salts are easily hydrolyzed into（hydr）oxides during aqueous stannation of β-*** this study,immobilization of tin species on high silica commercial β-zeolite by using SnCl_2/Choline chloride（ChCl） complex followed with calcination provided a convenient way to get well dispersed Sn in β-zeolite in the aqueous condition,which was observed based on electron microscopy images,UV visible spectra and X-ray diffraction *** existence of ChCl facilitated tin species to incorporate into zeolite.（1-2）wt%of Sn loaded β-zeolites exhibited good catalytic activity and high selectivity for glucose-fructose isomerization reaction.

关键词： Sn-β zeolite Immobilization Choline chloride Glucose Isomerization Fructose

Utilization of fruit waste for H_(2)-rich syngas production via steam co-gasification with brown coal

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Carbon Resources Conversion 2023年第4期6卷 315-325页

作者： Aisikaer Anniwaer Nichaboon Chaihad Aghietyas Choirun Az Zahra Irwan Kurnia Yutaka Kasai Suwadee Kongparakul Chanatip Samart katsuki kusakabe Abuliti Abudula Guoqing Guan Graduate School of Science and Technology Hirosaki University1-BunkyochoHirosaki 036-8560Japan Energy Conversion Engineering Laboratory Institute of Regional InnovationHirosaki University3-BunkyochoHirosaki 036-8561Japan Industrial Research Institute Aomori Prefectural Industrial Technology Research Center4-11-6Daini-TonyamachiAomori 030-0113Japan Department of Chemistry Faculty of Science and TechnologyThammasat UniversityPathumtani 12120 Thailand Department of Nanoscience Sojo University4-22-1Nishi-kuKumamoto-shiKumamoto 860-0082Japan Department of Chemistry Faculty of Mathematics and Natural SciencesUniversitas PadjadjaranJl.Raya Bandung–Sumedang KM.21 JatinangorSumedang 45363Indonesia

In this work,to efficiently utilize waste fruit and low-rank coal for the hydrogen(H_(2))-rich syngas production,steam co-gasification of banana peel(BP)and brown coal(BC)was studied in a fixed-bed *** results showed that the gasification rate of BC was highly enhanced after mixing it with BP and the obvious synergistic effect was observed in all investigated three mixing weight ratios(i.e.,1:1,1:4,4:1),resulting in a higher carbon conversion as well as a H_(2)-rich gas production yield for the ***,the extent of promotion by synergistic effect was affected by the reaction temperature,mixing ratio,and steam *** was found that the high potassium(K)species content in the BP provided the catalytic effect not only on water-gas shift reaction but also on tar reforming/cracking,thereby enhancing the gasification of *** addition,it is confirmed that steam should be an important factor to promote the synergistic effect and H_(2)-rich gas production.

关键词： Steam co-gasification Waste banana peel Brown coal H2-rich syngas Synergistic effect

High Temperature Separation of Hydrogen from Mixture of Gases by Using Microporous Silica Membranes

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材料科学与工程（中英文B版） 2011年第1期1卷 90-96页

作者： Sajid Hussain Shah Yoshimitsu Uemura SuzanaYusup katsuki kusakabe Department of Chemical Engineering Universiti Teknologi PETRONAS Bander Seri Iskandar Tronoh 31750 Malaysia Department of Living Environmental Science Fukuoka Women＇s University 1-1-1 Kasumigaoka Higashi-ku Fukuoka 813-8529Japan

Stress-dependent shear wave splitting and permeability in fractured porous rock

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Journal of Rock Mechanics and Geotechnical Engineering 2019年第1期11卷 1-11页

作者： Daisuke katsuki Marte Gutierrez Abdulhadi Almrabat Petroleum Engineering Department Colorado School of Mines Department of Civil and Environmental Engineering Colorado School of Mines

It is well known that shear wave propagates slower across than parallel to a fracture, and as a result, a travelling shear wave splits into two directions when it encounters a fracture. Shear wave splitting and permeability of porous rock core samples having single fracture were experimentally investigated using a high-pressure triaxial cell, which can measure seismic shear wave velocities in two directions mutually perpendicular to the sample axis in addition to the longitudinal compressive wave velocity. A single fracture was created in the samples using a modified Brazilian split test device, where the cylindrical sample edges were loaded on two diametrically opposite lines by sharp guillotines along the sample length. Based on tilt tests and fracture surface profilometry, the method of artificially induced tensile fracture in the sample was found to create repeatable fracture surfaces and morphologies. Seismic velocities of the fractured samples were determined under different levels of stress confinement and fracture shear displacement or mismatch. The effective confining stress was varied from 0.5 MPa to55 MPa, while the fractures were mismatched by 0 mm, 0.45 mm and 1 mm. The degree of matching of the fracture surfaces in the core samples was evaluated using the joint matching coefficient(JMC). Shear wave splitting, as measured by the difference in the magnitudes of shear wave velocities parallel(V_(S1))and perpendicular(V_(S2)) to the fracture, is found to be insensitive to the degree of mismatching of the fracture joint surfaces at 2 MPa, and decreased and approached zero as the effective stress was *** models for the stress-and JMC-dependent shear wave splitting and fractured rock permeability were developed based on the experimental observations. The effects of the joint wall compressive strength(JCS), JMC and stress on the stress dependency of joint aperture were discussed in terms of hydro-mechanical response. Finally, a useful relationship

关键词： Fractured rock Sandstone Stress dependency Shear wave splitting Wave velocity Permeability Fracture stiffness Elastic modulus

Therapeutic potential of prophylactic exercise for intracerebral hemorrhage

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Neural Regeneration Research 2022年第7期17卷 1484-1485页

作者： Keita Kinoshita Kelly K.Chung Hiroshi katsuki Ken Arai Neuroprotection Research Laboratory Departments of Radiology and NeurologyMassachusetts General Hospital and Harvard Medical SchoolCharlestownMAUSA Department of Chemico-Pharmacological Sciences Graduate School of Pharmaceutical SciencesKumamoto UniversityKumamotoJapan

Exercise and brain health:Physical activity helps promote and maintain our brain health,including memory and cognitive *** has shown that exercise is a safe behavioral intervention that reduces the risk of hypokinetic... 详细信息

关键词： diseases Therapeutic hemorrhage

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求解最优潮流问题的内点半定规划法

中国电机工程学报 2008年第19期28卷 56-64页

作者：白晓清韦化 katsuki Fujisawa 广西大学电气工程学院广西壮族自治区南宁市530004 东京电机大学数学科学系

基于内点半定规划(semi-definite programming,SDP),提出一种求解最优潮流(optimal power flow,OPF)的新方法——SDP-OPF法。该方法将非凸OPF问题等价转换为半定规划问题,然后应用原始–对偶内点法求解。根据OPF半定规划模型的特点,采... 详细信息

基于内点半定规划(semi-definite programming,SDP),提出一种求解最优潮流(optimal power flow,OPF)的新方法——SDP-OPF法。该方法将非凸OPF问题等价转换为半定规划问题,然后应用原始–对偶内点法求解。根据OPF半定规划模型的特点,采用基于半定规划的稀疏技术,使存储效率和计算性能得以大幅度提高。以4节点的简单电力系统为例,展示模型等价转换的过程及如何获取原OPF问题的解。IEEE-300节点等6个标准系统的仿真计算表明:所提算法具有超线性收敛性,其计算结果与内点非线性规划的结果一致,且能保证解的全局最优性,可在多项式时间内完成,是一种应用前景广阔的方法。

关键词：最优潮流半定规划内点法稀疏技术

Two-Dimensional Super High Density Multi-Fiber Connector

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光学学报 2003年第S1期23卷 285-286页

作者： Takashi Shigenaga katsuki Suematsu Masao Shinoda Takayuki Ando The Furukawa Electric Co. Ltd.The Furukawa Electric Co. Ltd.The Furukawa Electric Co. Ltd.The Furukawa Electric Co. Ltd.

We have developed 32-fiber and 60-fiber super high density multi fiber connector. This 32-fiber connector can be applicable for single-mode fiber and 60-fiber connector for multi-mode fiber. We have also established P... 详细信息

关键词： that in et have be MT high Two-Dimensional Super High Density Multi-Fiber Connector of

Relationship between Turbid Water and Coral Damage Distribution Using ALOS AVNIR-2 Images and Diving Survey Data Immediately after the Heavy Rain Disaster of the Amami-Oshima Island, Japan

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Advances in Remote Sensing 2015年第1期4卷 25-34页

作者： Yuji Sakuno katsuki Oki Faculty of Engineering Hiroshima University Hiroshima Japan Tida Planning Limited Company Kagoshima Japan

To understand the relationship between turbid water and coral damage caused by the heavy rain disaster at the end of October 2010 in Amami-Oshima, Kagoshima Prefecture, Japan, turbid water and coral damage distribution monitoring was attempted using satellite imagery and a diving survey immediately after the disaster. ALOS AVNIR-2 images (spatial resolution: 10 m) on October 6 (before the disaster), October 24, October 30, and October 31 (after the disaster) were obtained as satellite data in 2010. The red-silt deposition index (RSI) map based on the method by Nadaoka and Tamura (1992) was also created. Moreover, a diving survey was conducted via the spot check method on December 18, 2010. As a result, comparison between the high turbidity (RSI) areas estimated using AVNIR-2 data and the coral damage areas judging from the field survey was considered relatively light. It is shown that satellite data such as AVNIR-2 can be a powerful tool to monitor damage distribution of coral reefs after heavy rain.

关键词： ALOS AVNIR-2 Heavy Rain Disaster Amami-Oshima Island Red-Silt Deposition Index

Effects of CO<sub>2</sub>Injection on the Seismic Velocity of Sandstone Saturated with Saline Water

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International Journal of Geosciences 2012年第5期3卷 908-917页

作者： Marte Gutierrez Daisuke katsuki Abdulhadi Almrabat Civil and Environmental Engineering Colorado School of Mines St. Golden USA

Geological sequestration (GS) of carbon dioxide (CO2) is considered as one of the most promising technologies to reduce the amount of anthropogenic CO2 emission in the atmosphere. To ensure success of CO2 GS, monitoring is essential on ascertaining movement, volumes and locations of injected CO2 in the sequestration reservoir. One technique is to use time-lapsed seismic survey mapping to provide spatial distribution of seismic wave velocity as an indicator of CO2 migration and volumes in a storage reservoir with time. To examine the use of time-lapsed seismic survey mapping as a monitoring tool for CO2 sequestration, this paper presents mathematical and experimental studies of the effects of supercritical CO2 injection on the seismic velocity of sandstone initially saturated with saline water. The mathematical model is based on poroelasticity theory, particularly the application of the Biot-Gassmann substitution theory in the modeling of the acoustic velocity of porous rocks containing two-phase immiscible pore fluids. The experimental study uses a high pressure and high temperature triaxial cell to clarify the seismic response of a sample of Berea sandstone to supercritical CO2 injection under deep saline aquifer conditions. Measured ultrasonic wave velocity changes during CO2 injection in the sandstone sample show the effects of pore fluid distribution in the seismic velocity of porous rocks. CO2 injection was shown to decrease the P-wave velocity with increasing CO2 saturation whereas the S-wave velocity was almost constant. The results confirm that the Biot-Gassmann theory can be used to model the changes in the acoustic P-wave velocity of sandstone containing different mixtures of supercritical CO2 and saline water provided the distribution of the two fluids in the sandstone pore space is accounted for in the calculation of the pore fluid bulk modulus. The empirical relation of Brie et al. for the bulk modulus of mixtures of two-phase immiscible fluids, in comb

关键词： Biot-Gassmann Theory CO2 Geological Sequestration Poroelasticity Porous Rocks Two-Phase Fluid Flow Seismic Velocity

基于转录组测序和网络药理学探究青蒿琥酯干预U87和U251脑胶质瘤细胞的药效差异机制

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药学学报 2023年第6期58卷 1475-1483页

作者：李涛毛霞张彦琼林娜 SATO Takashi MIZUNO Koji OKUYAMA katsuki 黄丰云南中医药大学中药学院云南昆明650500 中国中医科学院中药研究所北京100700 东京药科大学生物化学系东京都八王子市192-0392

青蒿琥酯具有干预脑胶质瘤的潜能,但其药理作用机制尚不明确。本研究首先基于U87和U251两种人源脑胶质瘤细胞,探究青蒿琥酯对细胞活性、增殖和凋亡的影响,发现青蒿琥酯对U87细胞活性和增殖能力的抑制作用强于对U251细胞;Hoechst和TUNEL... 详细信息

青蒿琥酯具有干预脑胶质瘤的潜能,但其药理作用机制尚不明确。本研究首先基于U87和U251两种人源脑胶质瘤细胞,探究青蒿琥酯对细胞活性、增殖和凋亡的影响,发现青蒿琥酯对U87细胞活性和增殖能力的抑制作用强于对U251细胞;Hoechst和TUNEL细胞凋亡染色实验也发现,青蒿琥酯可以显著促进U87细胞的凋亡(P <0.05),而仅大剂量的青蒿琥酯可促进U251细胞的凋亡(P <0.01)。接着,利用青蒿琥酯处理前后的U87和U251细胞裂解液,通过转录组测序检测和差异数据分析,分别获得青蒿琥酯敏感性和非敏感性细胞株的差异基因集以及青蒿琥酯效应相关基因集,旨在挖掘青蒿琥酯对两类细胞敏感性不一的分子机制。通过构建上述各对比组差异基因互作网络和计算网络拓扑特征值,筛选药效相关的关键网络靶标;生物功能富集分析结果表明,上述关键网络靶标显著富集于多条与脑胶质瘤病理环节相关的信号通路,其中,与细胞凋亡相关的转录激活因子4 (ATF4)-DNA损伤诱导转录因子3 (DDIT3)-聚腺苷二磷酸核糖聚合酶1 (PARP1)信号轴的富集显著性最高。分子对接结果也表明,青蒿琥酯与ATF4和DDIT3均具有较好的结合能力。本研究初步揭示了青蒿琥酯干预U87脑胶质瘤细胞的潜能与其抑制肿瘤细胞内异常活化的ATF4-DDIT3-PARP1信号轴,进而诱导细胞凋亡有关;同时也表明了PARP1可能是U251细胞对青蒿琥酯产生耐药的重要靶标。相关结果为青蒿琥酯治疗脑胶质瘤,以及解决脑胶质瘤治疗药物耐药的现状提供了新的实验依据。

关键词：青蒿琥酯脑胶质瘤转录组测序网络药理学药理机制