检索结果-南通市图书馆

A Scalable Low-k/Cu Interconnect Technology using Self-Assembled Ultra-Low-k Porous Silica Films

2011中国妇产科学术会议暨浙江省计划生育与生殖医学学术年会暨生殖健康讲习班

作者： T.Maruo N.Ohara S.Yoshida K.Nakabayashi h.matsuo h.Yamada Kobe Children’S hospital and Feto-Mternal Medical Center KobeJapan Dept of Obstetrics & Gynecology Kobe University Graduate School of MedicineKobeJapan

BACKGROUND & OBJECTIVES:The use of levonorgestrel-releasing intrauterine system(LNG-IUS) is effective for long-term management of menorrhagic women with uterine myomas because of striking reduction in menorrhagia. however,the size of myomas during use of LNG-IUS increased in some but decreased in other *** prompted us to characterize the effects of progesterone(P4) on cultured leiomyoma cell *** that study,it became evident

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

A Scalable Low-k/Cu Interconnect Technology using Self-Assem...

2004 7th International Conference on Solid-State and Integrated Circuits Technology（ICSICT 2004）

作者： T.Kikkawa Y.Oku K.Kohmura N.Fujii h.Tanaka T.Goto A.Ishikawa h.matsuo h.Miyoshi A.Nakano Y.Sonoda N.hata Y.Seino T.Yoshino S.Takada K.Kinoshita MIRAI Advanced Semiconductor Research CenterNational Institute of Advanced Industrial Science and Technology Research Center for Nanodevices and Systems Hiroshima University

＜正＞A novel ultra-low-k porous silica film was developed by use of a self-assembly technology.A periodic hexagonal porous silica film and disordered porous silica film were formed by self-assembling surfactants and acidic silica derived from tetraethoxysilane（TEOS） on a Si *** properties of the periodic porous film such as porosity,pore diameter and resulting dielectric constant can be controlled by the alkyl chain length of the surfactant and the molecular ratio of surfactant/*** mechanical properties of the porous silica film can be reinforced by introducing tetramethyl-cyclo-tetra-siloxane （TMCTS） treatment without increasing the dielectric *** elastic modulus of 8 GPa and dielectric constant of 2 were achieved for the porous silica film. Ultra-low-k/Cu damascene integration was demonstrated for 45 nm BEOL technology.

关键词： Silicon compounds Semiconductor films Mechanical factors Dielectric constant Self-assembly Substrates Integrated circuit technology Ultra large scale integration Periodic structures Furnaces

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

利用胎儿MRI预测早期妊娠的深度学习模型

国际医学放射学杂志 2021年第4期44卷 495-495页

作者： Y.Kojita h.matsuo T.Kanda M.Nishio K.Sofue M.Nogami 孙羽

摘要目的比较双顶径(BPD)和前 3 个月获得的胎儿脑MRI,评价一种预测孕龄的深度学习模型。方法机构伦理委员会批准了这项回顾性研究,纳入了 184 个胎儿(平均胎龄:

关键词：深度学习模型 MRI 早期妊娠

Dynamic stress concentration in an infinitely long cylindrical cavity due to a point spherical source embedded within a fluid-saturated poroelastic formation of infinite extent

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 139-156页

作者： h.hOSSEINI O.BALILAShAKI Department of Mechanical Engineering Faculty of EngineeringGolestan University

The effects of a harmonically exciting monopole source on an infinitely long cylindrical cavity embedded entirely within a fluid-saturated poroelastic formation of infinite extent are examined theoretically. It is assumed that the source is located outside the cavity at a specified distance from the borehole axis. The magnitudes of the hoop and radial stresses beside the pore pressures exerted on the interface and inside the porous medium surrounding the borehole are calculated and discussed. Biot's poroelastic modeling along with three types of boundary conditions for the cylindrical interface including the ideal fluid, empty borehole, and rigid inclusion with a hard boundary is employed for the analysis. Utilizing a proper translational addition theorem for expressing the incident spherical wave in terms of cylindrical wave expansions, the proposed boundary conditions at the interface are satisfied. Stresses are formulated by means of wave potential functions in a three-dimensional(3D) manner. The effects of the frequency and the radial distance between the source and borehole on the induced stresses are examined for the first cylindrical modes over frequency spectra. Two permeability conditions for the interface and three types of soils for the porous formation are considered throughout the analysis. To give an overall outline of the study, a numerical example is presented. The results clearly indicate that the distance is a key parameter and has considerable effects on the induced stress values. In addition, the interface permeability condition and soil characteristics play an important role in determining the dynamic response of the borehole. Finally,the obtained results are compared with the relevant analyses existing in the literature for some limit cases, and good agreement is achieved.

关键词：

Neuroinflammation as a therapeutic target in huntington's disease

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第3期20卷 817-818页

作者： Andrea Kwakowsky Thulani h.Palpagama Center for Brain Research and Department of Anatomy and Medical Imaging Faculty of Medical and Health SciencesUniversity of AucklandAucklandNew Zealand Pharmacology and Therapeutics School of MedicineGalway Neuroscience CentreUniversity of GalwayGalwayIreland

In 1872, George huntington presented his essay “On Chorea” to the Meigs and Mason Academy of Medicine and, in doing so, detailed a disease that would later bear his name. huntington's disease(hD) is a genetic, neurodegenerative disease that manifests as the loss of motor control,cognitive impairment,and mood and psychiatric changes in paents.

关键词： huntington inflammation Medicine

Glial response in the midcingulate cortex in huntington’s disease

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第1期20卷 207-208页

作者： Thulani h.Palpagama Andrea Kwakowsky Center for Brain Research and Department of Anatomy and Medical Imaging Faculty of Medical and Health SciencesUniversity of AucklandAucklandNew Zealand Pharmacology and Therapeutics School of MedicineGalway Neuroscience CenterUniversity of GalwayGalwayIreland

huntington’s disease(hD)is a genetic disease characterized by the progressive degeneration of the striatum and *** can present with a variety of symptoms that can broadly be classified into motor symptoms,inclusive of choreatic movements and rigidity,mood and psychiatric symptoms,such as depression and apathy,and cognitive symptoms,such as cognitive *** causal mutation underlying hD results from an expansion of a CAG repeat sequence on the IT15 gene,resulting in the formation and accumulation of a mutant huntingtin protein.

关键词： huntington degeneration cortex

Computational Analysis of a Variable Ejector Flow

在线全文

学校读者我要写书评

暂无评论

Journal of Thermal Science 2006年第2期15卷 140-144页

作者： h.D. KIM J.h. LEE T. SETOGUChI S.matsuo School of Mechanical Engineering Andong National University 388 Songchun-dong Andong 760-749 Korea Department of Mechanical Engineering Saga University 1 Honjo Saga 840-8502 Japan

The present study addresses a variable ejector which can improve the ejector efficiency and control the re-circulation ratio under a fixed operating pressure ratio. The variable ejector is a facility to obtain specific recirculation ratio under a given operating pressure ratio by varying the ejector throat area ratio. The numerical simulations are carried out to provide an understanding of the flow characteristics inside the variable ejector. The sonic and supersonic nozzles are adopted as primary driving nozzles in the ejector system, and a movable cone cylinder, inserted into a conventional ejector-diffuser system, is used to change the ejector throat area ratio. The numerical simulations are based on a fully implicit finite volume scheme of the compressible, Reynolds-Averaged Navier-Stokes equations. The results show that the variable ejector can control the recirculation ratio at a fixed operating pressure ratio.

关键词： variable ejector ejector throat area ratio re-circulation ratio

Optimization Study of a Coanda Ejector

在线全文

学校读者我要写书评

暂无评论

Journal of Thermal Science 2006年第4期15卷 331-336页

作者： h.D.Kim G.Rajesh T.Setoguchi S.matsuo School of Mechanical Engineering Andong National University388Songcheon-dongAndongGyeongbuk 760-749Korea Department of Mechanical Engineering Saga University1HonjoSaga 840-8502Japan

The Coanda effect has long been employed in the aerospace applications to improve the performances of various devices. This effect is the ability of a flow to follow a curved contour without separation and has well been utilized in ejectors where a high speed jet of fluid emerges from a nozzle in the ejector body, follows a curved surface and drags the secondary flow into the ejector. In Coanda ejectors, the secondary flow is dragged in the ejector due to the primary flow momentum. The transfer of momentum from the primary flow to the secondary flow takes place through turbulent mixing and viscous effects. The secondary flow is then dragged by turbulent shear force of the ejector while being mixed with the primary flow by the persistence of a large turbulent intensity throughout the ejector. The performance of a Coanda ejector is studied mainly based on how well it drags the secondary flow and the amount of mixing between the two flows at the ejector exit. The aim of the present study is to investigate the influence of various geometric parameters and pressure ratios on the Coanda ejector performance. The effect of various factors, such as, the pressure ratio, primary nozzle and ejector configurations on the system performance has been evaluated based on a performance parameter defined elsewhere. The performance of the Coanda ejector strongly depends on the primary nozzle configuration and the pressure ratio. The mixing layer growth plays a major role in optimizing the performance of the Coanda ejector as it decides the ratio of secondary mass flow rate to primary mass flow rate and the mixing length.

关键词： Coanda ejector compressible mixing layer flow dragging mixing length induced flow

A Study of the Critical Nozzle for Flow Rate Measurement of high-Pressure hydrogen Gas

在线全文

学校读者我要写书评

暂无评论

Journal of Thermal Science 2007年第1期16卷 28-32页

作者： h.D.Kim J.h.Lee K.A.Park T.Setoguchi S.matsuo School of Mechanical Engineering Andong National University388Songchun-dongAndong 760-749Korea Dynamics Group Korea Research Institute of Standards and SciencePO Box 102YusongTaejon 305-606Korea Department of Mechanical Enginering.Saga University 1Honjo—machiSaga-shiSaga 840—8502Japan

The mass flow rate measurement using a critical nozzle shows the validity of the inviscid theory, indicating that the discharge coefficient increases and approaches unity as the Reynolds number increases under the ideal gas law however, when the critical nozzle measures the mass flow rate of a real gas such as hydrogen at a pressure of hundreds bar, the discharge coefficient exceeds unity, and the real gas effects should be taken into account. The present study aims at investigating the flow features of the critical nozzle using high-pressured hydrogen gas. The axisymmetric, compressible Navier-Stokes computation is employed to simulate the critical nozzle flow, and a fully implicit finite volume method is used to discretize the governing equation system. The real gas effects are simulated to consider the intermolecular forces, which account for the possibility of liquefying hydrogen gas. The computational results are compared with past experimental data. It has been found that the coefficient of discharge for real gas can be corrected properly below unity adopting the real gas assumption.

关键词： critical nozzle compressible flow hydrogen gas ideal gas law real gas effect