检索结果-南通市图书馆

Validation of user-friendly models predicting extracapsular extension in prostate cancer patients

Asian Journal of Urology 2023年第1期10卷 81-88页

作者： Leandro Blas Masaki Shiota Shohei Nagakawa Shigehiro Tsukahara Takashi Matsumoto Ken Lee Keisuke Monji Eiji Kashiwagi Junichi Inokuchi Masatoshi Eto Department of Urology Graduate School of Medical SciencesKyushu UniversityFukuokaJapan

Objective:There are many models to predict extracapsular extension(ECE)in patients with prostate cancer.We aimed to externally validate several models in a Japanese cohort.Methods:We included patients treated with robotic-assisted radical prostatectomy for prostate cancer.The risk of ECE was calculated for each patient in several models(prostate side-specific and non-side-specific).Model performance was assessed by calculating the receiver operating curve and the area under the curve(AUC),calibration plots,and decision curve analyses.Results:We identified ECE in 117(32.9%)of the 356 prostate lobes included.Patients with ECE had a statistically significant higher prostate-specific antigen level,percentage of positive digital rectal examination,percentage of hypoechoic nodes,percentage of magnetic resonance imaging nodes or ECE suggestion,percentage of biopsy positive cores,International Society of Urological Pathology grade group,and percentage of core involvement.Among the sidespecific models,the Soeterik,Patel,Sayyid,Martini,and Steuber models presented AUC of 0.81,0.78,0.77,0.75,and 0.73,respectively.Among the non-side-specific models,the memorial Sloan Kettering Cancer Center web calculator,the Roach formula,the Partin tables of 2016,2013,and 2007 presented AUC of 0.74,0.72,0.64,0.61,and 0.60,respectively.However,the 95%confidence interval for most of these models overlapped.The side-specific models presented adequate calibration.In the decision curve analyses,most models showed net benefit,but it overlapped among them.Conclusion:Models predicting ECE were externally validated in Japanese men.The side-specific models predicted better than the non-side-specific models.The Soeterik and Patel models were the most accurate performing models.

关键词： Prognosis Prostate cancer Nomogram Extracapsular extension

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Laser-assisted direct roller imprinting of large-area microstructured optical surfaces

引用

Microsystems & Nanoengineering 2024年第1期10卷 257-266页

作者： keisuke Nagato Ken Takahashi Yuki Yajima Masayuki Nakao Department of Mechanical Engineering Graduate School of EngineeringThe University of Tokyo7-3-1 HongoBunkyo-kuTokyo 113-8656Japan

In this study,a high-throughput fabrication method called laser-assisted direct roller imprinting(LADRI)was developed to lower the cost of nanoimprinting large-area polymer films and to address problems associated with nanoimprinting,namely,microstructural damage and precision in flatness of entire film.With LADRI,the laser directly heats the microstructured surface of the roller mold,which heats and melts the surface of a polymethyl methacrylate(PMMA)film to replicate the microstructures on the mold rapidly.In this study,the effects of laser power density,scanning speed,size of the microstructures,and contact pressure on the replication speed were investigated experimentally.The replication speed increased as the power and scanning speed increased.However,because the film required heating until it filled the entire depth of the microstructure,an appropriate replication speed was necessary.This result was supported by simulation of the temperature distribution inside the mold and the PMMA using transient heat conduction analyses.To demonstrate the applications of LADRI,two different optical surfaces were replicated:an antireflection(AR)structure with conical structures sized several hundred nanometers and a lightextraction structure with a microlens array(MLA)comprising 10μm lenses,for display and illumination,respectively.The replication degree of the MLA was governed by the contact pressure.Polymer flow simulation indicated that the heat conduction and flow speeds of the melted PMMA surface were comparable within several tens of micrometers.In addition,the reflectivity of the AR structure decreased from 4 to 0.5%,and the light intensity of the light-extraction structure increased by a factor of 1.47.

关键词： microstructure roller conduction

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of dissolved oxygen on methane production from bottom sediment in a eutrophic stratified lake

引用

Journal of Environmental Sciences 2023年第3期125卷 61-72页

作者： Yasuyuki Maruya keisuke Nakayama Masafumi Sasaki Katsuaki Komai Graduate School of Engineering Kyushu University744 MotookaNishi-KuFukuoka 819-0395Japan Graduate School of Engineering Kobe UniversityRokkodai-Cho 1-1Nada-KuKobe 657-8501Japan Department of Engineering Kitami Institute of TechnologyKohen-Cho 165Kitami 090-8507Japan

Clarifying the role of sulfate and dissolved oxygen (DO) in methane production may allow for precise and accurate modeling of methane emissions in eutrophic lakes.We conducted field observations of sulfate,methane,and DO concentrations in Lake Abashiri,a typical brackish and eutrophic lake in a cold region,to develop a DO-based method for quantitively estimating methane production in a eutrophic lake and analyzed the results.We found that sulfate concentrations decreased rapidly from 900.0 mg/L in water overlying the sediments to nearly 0.0 mg/L in the bottom sediment.Methane production was almost uniform across sediment depths of 0.05 to 0.25 m,ranging from 1400 to 1800μmol/m^(2)/day.Also,methane production was found to be a function of DO concentrations in water overlying the bottom and could be modeled by a logistic function:constant production at 1,400μmol/m^(2)/day for DO concentrations of 0.0 to 3.0 mg/L,rapidly decreasing to 0μmol/m^(2)/day for DO concentrations of 3.0 to 6.0 mg/L.This methane model was verified using a simple one-dimensional numerical model that showed good agreement with field observations.Our results thus suggest that the proposed methane model reduces uncertainty in estimating methane production in a eutrophic lake.

关键词： Dissolved oxygen(DO) Stratification Methane Anoxia Numerical simulation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Missing flux from the ocean: isotope revealed an important NOx flux mediated by microbial processes

引用

National Science Review 2022年第9期9卷 139-139页

作者： keisuke Koba Center for Ecological Research Kyoto University

NOxin the atmosphere can affect human health and economic development as well as atmospheric chemistry and climate.us, it is crucial to deeply understand the dynamics of NOxincluding its sources and sinks. However, as in the cases of other nitrogen compounds such as nitrous oxide, it is quite difficult to trace the fate of NOx, then close its budget.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Magnetic and magnetocaloric properties in GdZn_(2) synthesized by ball milling

引用

Journal of Rare Earths 2022年第3期40卷 462-466,I0004页

作者： keisuke T.Matsumoto Akihiro Hosokawa Koichi Hiraoka Graduate School of Science and Engineering Ehime University3Bunkyo-choMatsuyamaEhime790-8577Japan

In this study,we prepared GdZn_(2)by mechanical alloying method and measured its magnetization to reveal the magnetic and magnetocaloric properties.For a milling time(MT)≥10 and 20 h,the GdZn_(2)phase was confirmed by X-ray diffraction measurements.For MT=40 and 60 h,amorphous like patterns are observed.For MT=10 and 20 h,magnetization(M)as a function of temperature below 80 K shows ferromagnetic-like increase.The observed values of M are 4.5μ_(B) at 5 K for MT=10 and 20 h,which is smaller than that of the theoretical expected value of 7μ_(B).For MT=40 and 60 h,the long-range ferromagnetic order collapses because there is no spontaneous magnetization.The value ofΔT,whereΔT is the full width at half maximum of the magnetic entropy change(ΔS_(m)(T)),increases significantly for MT≤20 h because of the gradual release of magnetic entropy by the milling effect.Since M decreases with increasing MT,the maximum values of|ΔS_(m)|,the relative cooling power,and the refrigerant capacity also decreases.

关键词： Mechanical alloying Magnetocaloric effect GdZn_(2) Rare earths

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Degradation diagnosis of lithium-ion batteries using AC impedance technique in fixing the state of charge of an electrode

引用

Journal of Energy Chemistry 2021年第2期30卷 285-289,I0010页

作者： keisuke Ando Tomoyuki Matsuda Daichi Imamura E-Mobility Research Division Japan Automobile Research Institute2530 KarimaTsukubaIbaraki 305-0822Japan

A sustainable society requires an increase in electrified vehicles(xEVs) with a low environmental impact. Among various types of xEVs, battery electric vehicles (BEVs) with lithium-ion batteries(LIBs) have received co... 详细信息

关键词： Degradation diagnosis AC impedance dV/dQ curve analysis Lithium-ion battery Non-destructive analysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

An EMG-Based Biomimetic Variable Stiffness Modulation Strategy for Bilateral Motor Skills Relearning of Upper Limb Elbow Joint Rehabilitation

引用

Journal of Bionic Engineering 2023年第4期20卷 1597-1612页

作者： Ziyi Yang Shuxiang Guo keisuke Suzuki Yi Liu Masahiko Kawanishi Graduate School of Engineering Kagawa UniversityTakamatsuKagawa761-0396Japan Key Laboratory of Convergence Medical Engineering System and Healthcare Technology School of Life Science and TechnologyBeijing Institute of TechnologyBeijing100081China National Rehabilitation Center for Persons with Disabilities Tokorozawa359-8555Japan Faculty of Medicine Kagawa UniversityTakamatsuKagawa761-0793Japan

Bilateral rehabilitation systems with bilateral or unilateral assistive robots have been developed for hemiplegia patients to recover their one-side paralysis.However,the compliant robotic assistance to promote bilateral inter-limb coordination remains a challenge that should be addressed.In this paper,a biomimetic variable stiffness modulation strategy for the Variable Stiffness Actuator(VSA)integrated robotic is proposed to improve bilateral limb coordination and promote bilateral motor skills relearning.An Electromyography(EMG)-driven synergy reference stiffness estimation model of the upper limb elbow joint is developed to reproduce the muscle synergy effect on the affected side limb by independent real-time stiffness control.Additionally,the bilateral impedance control is incorporated for realizing compliant patient-robot interaction.Preliminary experiments were carried out to evaluate the tracking performance and investigate the multiple task intensities’influence on bilateral motor skills relearning.Experimental results evidence the proposed method could enable bilateral motor task skills relearning with wide-range task intensities and further promote bilateral inter-limb coordination.

关键词： Biomimetic stiffness modulation Compliant physical human-robot interaction(pHRI) Electromyography(EMG) Variable stiffness actuator(VSA) Rehabilitation robotics Synergy-based control Skill relearning

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The marriage of coherent Raman scattering imaging and advanced computational tools

引用

Light(Science & Applications) 2023年第6期12卷 943-945页

作者： Walker Peterson Kotaro Hiramatsu keisuke Goda Department of Chemistry The University of TokyoTokyo 113-0033Japan Research Center for Spectrochemistry The University of TokyoTokyo 113-0033Japan Department of Bioengineering University of CaliforniaLos AngelesCA 90095USA Institute of Technological Sciences Wuhan UniversityWuhanHubei 430072China LucasLand Inc.Tokyo 101-0052Japan

Coherent Raman scattering microscopy can provide high-contrast tissue and single-cell images based on the inherent molecular vibrations of the sample.However,conventional techniques face a three-way trade-off between Raman spectral bandwidth,imaging speed,and image fidelity.Although currently challenging to address via optical design,this trade-off can be overcome via emerging computational tools such as compressive sensing and machine learning.

关键词： coherent overcome hough

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Experimental and Numerical Study on the Diffusion Laws of Cement Grout in Rough Rock Fracture

Experimental and Numerical Study on the Diffusion Laws of Ce...

引用

作者： keisuke OKATSU 山东大学

学位级别：硕士

隧道作为一种可以有效提高交通运输效率的工程建筑物,在世界各国的基础建设过程中得到了大力发展。但是由于山区的水文和地质条件十分复杂,在隧道开挖过程中极易发生突涌水等灾害,给隧道的施工过程带来了极大的困难。特别是在富水的裂... 详细信息

隧道作为一种可以有效提高交通运输效率的工程建筑物,在世界各国的基础建设过程中得到了大力发展。但是由于山区的水文和地质条件十分复杂,在隧道开挖过程中极易发生突涌水等灾害,给隧道的施工过程带来了极大的困难。特别是在富水的裂隙岩体地层,发生突水突泥灾害的风险极高,通常采用注浆法进行治理。注浆法是一种将胶凝材料（例如水泥浆液）注入到裂隙岩体或其他软弱地层中的灾害治理方法,能够大幅改善裂隙岩体的防水性能和力学性能。实际地层中的裂隙岩体通常含有大量的裂隙,成为地下水流动的主要通道。由于裂隙岩体内的裂隙表面粗糙度不均匀、开度变化大、交叉裂隙角度多变等特点,造成浆液扩散规律复杂多变。目前对裂隙岩体注浆的浆液扩散机理上不清楚,难以对注浆堵水和加固效果进行有效的评价。因此,本文通过开展室内大型注浆模拟试验和相应的数值模拟,研究分析了水泥浆液在不同粗糙裂隙中的扩散规律,分析了不同因素对浆液扩散的影响。本文的主要研究内容和结论如下:（1）采用室内试验的方法,基于粗糙单裂隙模型,考虑了不同的裂隙开度、注浆压力和裂隙粗糙度（JRC）等因素对单裂隙注浆的影响,研究了单裂隙内浆液压力梯度和流量变化规律。结果表明,裂隙粗糙度和注浆压力越大,浆液的压力梯度也越大;而裂隙开度越大,浆液的压力梯度越小。因此,裂隙岩体的裂隙表面越粗糙、裂隙开度越大,水泥浆液的扩散范围也越大。（2）采用COMSOL软件建立了单裂隙注浆模型,并开展了相关的数值计算。综合考虑了裂隙开度、注浆压力、裂隙粗糙度和地下水对浆液扩散规律的影响,得到的浆液扩散规律变化趋势与试验结果基本一致,并进一步研究了水泥浆液在含地下水单裂隙中的扩散范围,得到了单裂隙中水泥浆液和地下水随注浆时间的变化情况。（3）采用数值模拟方法,研究了水泥浆液在Y型交叉裂隙中的扩散规律,综合考虑了 Y型交叉裂隙夹角和裂隙粗糙度对水泥浆液扩散规律的影响。结果表明,Y型交叉裂隙的浆液压力梯度、浆液流量、雷诺数等均小于单裂隙,并且随着Y型交叉裂隙夹角增大,浆液流量逐渐变小。

关键词：水泥浆液扩散粗糙裂隙交叉裂隙室内注浆试验数值模拟

来源：

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Unlocking the secrets of the invisible world:incredible deep optical imaging through in-silico clearing

引用

光:科学与应用(英文版) 2023年第8期12卷 1439-1440页

作者： Ting-Hui Xiao Yuqi Zhou keisuke Goda Henan Key Laboratory of Diamond Optoelectronic Materials and Devices School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450052China Institute of Quantum Materials and Physics Henan Academy of SciencesZhengzhou 450046China Department of Chemistry School of ScienceThe University of TokyoTokyo 113-0033Japan institute of Technological Sciences Wuhan UniversityWuhan 430072China Department of Bioengineering University of CaliforniaLos AngelesCA 90095USA

In-silico clearing enables deep optical imaging of biological samples by correcting image blur caused by scattering and aberration.This breakthrough method offers researchers unprecedented insights into three-dimensional biological systems,with enormous potential for advancing biology and medicine to better understand living organisms and human health.

关键词： clearing visible breakthrough

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：