检索结果-内蒙古大学图书馆

Effect of Graphite Addition on Microstructure, Mechanical Properties and Thermal Properties of Injection Molded AZ91D Alloy+1

引用

Materials Transactions 2024年第4期65卷 374-380页

作者： Hideshima, Yasutoshi Maeda, Fumiya Fukuta, Tadao Ozaki, Koichi Course of Advanced Systems Engineering Graduate School of Computer Science and Systems Engineering Okayama Prefectural University Soja719-1197 Japan Process Technology Development Department Technology Development Division Seiko Epson Corp. Suwa399-0211 Japan Department of Systems Engineering Faculty of Computer Science and Systems Engineering Okayama Prefectural University Soja719-1197 Japan

Magnesium chips were coated with a high concentration of graphite using a binder and were used as the raw material for injection molding. The microstructure of the magnesium injection-molded product with added graphite exhibited a dispersion of needle-like graphite particles. No significant voids were observed at the interfaces between the graphite and the matrix. The addition of more than 0.5 mass% graphite decreased the proof stress and tensile strength of the injection-molded products. The Young’s modulus of the graphite-added products tended to decrease with an increase in the graphite content, which is consistent with the lower limit of the rule of mixtures. The thermal conductivity of the 6.9 mass% graphite-added product increased compared with that of the AZ91D magnesium alloy and the coefficient of linear thermal expansion decreased. Both values are within a range that satisfied the rules of mixtures. © 2024 The Japan Institute of Metals and Materials.

关键词： Thermal expansion

来源：评论

学校读者我要写书评

暂无评论

Direct Sputtered Copper Seed Layer Formation on Low Dielectric Resin to Reduce Transmission Loss

Direct Sputtered Copper Seed Layer Formation on Low Dielectr...

引用

2024 International 3D Systems Integration Conference, 3DIC 2024

作者： Shimizu, Akihiro Fukada, Kazuhiro Endo, Shinichi Abe, Mitsuru Matsui, Akiko Technology & Engineering Department 1 Photon Process Division Ushio Inc. Hyogo Himeji Japan Research & Development Center Research and Development Department Shibaura Machine Co. Ltd. Kanagawa Zama Japan Photon Process Division Photon Process GBU Ushio Inc. Osaka Osaka Japan Assembly Solution Business Unit Assembly Technology Division NTT Devices Cross Technologies Corporation Kanagawa Kawasaki Japan

ISBN: (纸本)9798331516505

We developed a method to form a copper seed layer directly on resins with excellent dielectric properties using sputtering (referred to as the direct sputtering method). One of the key challenges to implementing 6G wireless communication systems that use millimeter waves is minimizing high-frequency transmission losses, as the transmission loss is affected by the dielectric (resin substrate) and the conductor (copper wiring) used to fabricate the transmission line. We compared our direct sputtering method for fabricating transmission circuits with the electroless copper plating method by evaluating the characteristics of their high-frequency transmission up to 100 GHz. Our direct sputtering method has several advantages over the electroless copper plating method, including a streamlined fabrication process for the transmission circuit. The direct sputtering method reduces the usage of chemicals and the high-frequency transmission loss in the transmission circuit. Thus, our direct sputtering method is beneficial to the fabrication of transmission circuits for 6G wireless communications. © 2024 IEEE.

关键词： Copper plating

来源：评论

学校读者我要写书评

暂无评论

Fabrication of SiC particle dispersed AZ91D magnesium alloy composite by injection molding method and their properties

引用

Keikinzoku/Journal of Japan Institute of Light Metals 2024年第3期74卷 141-146页

作者： Hideshima, Yasutoshi Maeda, Fumiya Fukuta, Tadao Ozaki, Koichi Graduate School of Computer Science and Systems Engineering Okayama Prefectural University 111 Kuboki Okayama Soja-shi719-1197 Japan Process Technology Development Department Technology Development Division Seiko Epson Co. Suwa-shi Nagano Japan Faculty of Computer Science and Systems Engineering Okayama Prefectural University Okayama Soja-shi Japan

AZ91D magnesium alloy chips were coated with SiC powder using a binder, and injection molding was attempted using SiC powder coated magnesium chips as raw material. The metallurgical structure of the injection molded products showed uniform dispersion of SiC particles in the matrix, and there were no significant defects such as voids at the SiC particle-matrix interface. The hardness and 0.2% proof stress of the injection molded products tended to improve with increasing SiC content, while the elongation decreased with increasing SiC content. The Young's modulus of the injection molded products improved with increasing SiC content. It was confirmed that the specific bending rigidity of the injection molded products also improves due to the significant increase in the Young's modulus, although the addition of SiC leads to an increase in density. © 2024 The Japan Institute of Light Metals.

关键词： Silicon carbide

来源：评论

学校读者我要写书评

暂无评论

Application of response surface methodology with central composite design to evaluate the extraction of U(VI) into ionic liquids

引用

Materials Today: Proceedings 2022年 57卷 1738-1744页

作者： Kumar, Pradeep Vincent, Tessy Khanna, Ashok Department of Chemical Engineering IET Lucknow 226021 India Process Development Division Nuclear Recycle Group BARC Mumbai India Department of Chemical Engineering IIT Kanpur 208016 India

Application of response surface methodology with central composite design to evaluate Uranium (VI) extraction from acidic medium by tri-n-butyl phosphate (TBP) solution into Ionic liquids has been studied. At low acidic solution i.e. at 0.01 M HNO3 the enhancement in distribution ratio DU in [EMIM][TF2N], [BMIM][TF2N], [Trihexyl tetradecyl phosphonium][TF2N] compared to dodecane is ∼ 347, 260 and 82 times and to TBP it is ∼ 300, 225 and 70 times respectively. Percent extraction (% E) of uranium into [EMIM][TF2N] is found to be highest 93% compared to other ionic liquids. The RSM with two-level-two-full factorial CCD was employed to predict the statistical model which relates the TBP composition and pH to the DU with (R2 = 98.6%). The model equation is tested for its suitability by analysis of variance (ANOVA) and it is found to be in good agreement with the experimental data. © 2021

关键词： Ionic liquids

来源：评论

学校读者我要写书评

暂无评论

Transducer misplacement compensation for in-lab-made 3D photoacoustic tomography systems using Nature-inspired algorithms

Transducer misplacement compensation for in-lab-made 3D phot...

引用

Photons Plus Ultrasound: Imaging and Sensing 2023

作者： Rahaman, Jarjish Prakash, Ravi Ranjbaran, Mohsen Manwar, Rayyan Avanaki, Kamran CSIR- National Chemical Laboratory Chemical Engineering & Process Development Division Pune India University of Illinois-Chicago Biomedical Engineering Department ChicagoIL United States

ISBN: (纸本)9781510658639

Three-dimensional (3D) photoacoustic tomography is a method of choice for imaging round organs such as brain and breast. Many research groups have used a fully populated hemispherical transducer array with 256, 512, 1028, or 2048 elements and used that for 3D imaging. These transducer arrays are expensive and require a sophisticated data acquisition unit. Other groups have used much smaller number of transducers with a rotating mechanism which eventually filled out the entire hemisphere. We have built a 3D hemispherical array with 28 transducers which are placed on a 3D printed dome-like unit. The location of transducers however may be off-placed by a few millimeters (due to human error and errors in 3D printing). This may be to defocus the reconstructed image if the acceptable positions of transducers are not selected. In this work, we developed a compensation algorithm for misplacement of these transducers using Cuckoo search (CS) algorithm. The CS algorithm finds the optimum location for the transducers using levy flight which relies on levy distribution. The optimum location of each of these transducers is found within -4 mm to 4 mm of their locations. Universal back projection algorithm was used for image reconstruction and the sharpness of 3D image was used as the cost function;additionally, two more objective functions, the Brenner gradient, and the Tenenbaum gradient was investigated. © 2023 SPIE.

关键词： Cost functions

来源：评论

学校读者我要写书评

暂无评论

Novel Denoising Technique for Optical Coherence Tomography Images

Novel Denoising Technique for Optical Coherence Tomography I...

引用

Photonics in Dermatology and Plastic Surgery 2024

作者： Rahaman, Jarjish May, Julia Puyana, Carolina Tsoukas, Maria Avanaki, Kamran CSIR- National Chemical Laboratory Chemical Engineering & Process Development Division Pune India Department of Dermatology University of Illinois at Chicago ChicagoIL United States The Richard and Loan Hill Department of Biomedical Engineering University of Illinois at Chicago ChicagoIL United States

ISBN: (纸本)9781510668911

This study introduces a learning-assisted denoising technique for skin Optical Coherence Tomography (OCT) images. By combining Reinforcement Learning (RL) with the Denoising Convolutional Neural Network (DnCNN), we achieve enhanced denoising capabilities. The method iteratively refines DnCNN parameters through RL-guided policies, demonstrating superior performance. Tailored for skin OCT images, the approach prioritizes preserving vital structures for accurate clinical assessments. This integration of RL into DnCNN training represents a promising advancement in medical image denoising, particularly for dermatological diagnostics. © 2024 SPIE.

关键词： Image denoising

来源：评论

学校读者我要写书评

暂无评论

Thickness Dependence of Ferroelectricity for Thin (Al0.9Sc0.1)N-based FeRAM

Thickness Dependence of Ferroelectricity for Thin (Al0.9Sc0....

引用

International Meeting for Future of Electron Devices

作者： Soshun Doko Naoko Matsui Toshikazu Irisawa Koji Tsunekawa Nana Sun Yoshiko Nakamura Kazuki Okamoto Hiroshi Funakubo Process Development Division Canon ANELVA Corporation Kawasaki Kanagawa Japan Department of Materials Science and Engineering Tokyo Institute of Technology Yokohama Kanagawa Japan

ISBN: (数字)9798331506711

ISBN: (纸本)9798331506728

The thickness dependences of the crystallinity and ferroelectricity for (Al 0.9 Sc 0.1 )N films were investigated. The (001) out-of-plane orientation and ferroelectricity of (Al 0.9 Sc 0.1 )N film depend on the thickness of (Al 0.9 Sc 0.1 )N film and Pt bottom electrode. 30-nm-thick (Al 0.9 Sc 0.1 )N films deposited on 5-nm-thick Pt bottom electrodes maintain the (001) orientation and saturated high remanent polarization (P r ) (> 100 μC/cm 2 ). We succeeded in reducing the total thickness of the Pt bottom electrode and (Al 0.9 Sc 0.1 )N film to 35 nm.

关键词： Electrodes Nonvolatile memory Ferroelectric films Films Random access memory Logic Electron devices

来源：评论

学校读者我要写书评

暂无评论

Design,synthesis,and biological evaluation of 1,2,4-triazole derivatives as potent antitubercular agents

引用

Chinese Chemical Letters 2024年第3期35卷 326-331页

作者： Yu Wen Shichun Lun Yuxue Jiao Wei Zhang Tianyu Hu Ting Liu Fan Yang Jie Tang Bing Zhang William R.Bishai Li-Fang Yu Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development School of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai 200062China Center for Tuberculosis Research Department of MedicineDivision of Infectious DiseaseJohns Hopkins School of MedicineBaltimoreMD21231-1044United States Shanghai Institute for Advanced Immunochemical Studies and School of Life Science and Technology ShanghaiTech UniversityShanghai 201210China Shanghai Key Laboratory of Green Chemistry and Chemical Process School of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai 200062China

Inhibition of mycobacterial membrane protein large 3(MmpL3)thereby affecting the mycolic acid biosynthetic pathway has been proven to be an effective strategy for developing antitubercular *** on the X-ray crystal structure of MmpL3 inhibitor complexes,a series of novel 1,2,4-triazole derivatives were designed,synthesized and evaluated antitubercular activity against Mtb strain *** structure–activity relationship exploration resulted in the identification of compounds 21 and 28,which possess potent antitubercular activity against Mtb strain H37Rv[minimum inhibitory concentration(MIC)=0.03–0.13μg/mL]and the clinical isolates of multidrug resistance(MDR)and extensive drug resistance(XDR)tuberculosis(MIC=0.06–1.0μg/mL).Moreover,compounds 21 and 28 showed neglectable cytotoxicity(IC_(50)≥32μg/mL)to the mammalian Vero cells and favorable physicochemical and pharmacokinetic properties according to the in silico absorption,distribution,metabolism and excretion(ADME)***,the potential target of representative 1,2,4-triazole 28 was identified to be MmpL3 using a microscale thermophoresis(MST)assay.

关键词： Tuberculosis MDR and XDR-TB MmpL3 inhibitor 1 2 4-Triazole Structure-based drug design

来源：评论

学校读者我要写书评

暂无评论

MXene-based materials for efficient applications in perovskite solar cells:A review

引用

材料科学技术（英文版） 2025年第12期215卷 214-232页

作者： Yue Li Yuhua Wang Zichao Xu Bo Peng Ngoc Quang Tran Kuldeep K Saxena S. Vadivel Xinghui Liu Hubei Province Key Laboratory of Systems Science in Metallurgical Process Wuhan University of Science and TechnologyWuhan 430081China Center for Innovative Materials & Architectures Vietnam National University Ho Chi Minh700000Vietnam Division of Research and Development Lovely Professional UniversityPhagwaraIndia Department of Physics Saveetha School of EngineeringSaveetha Institute of Medical and Technical Sciences(SIMATS)ThandalamChennaiTamil Nadu 602105India Science and Technology on Aerospace Chemical Power Laboratory Laboratory of Emergency Safety and Rescue TechnologyHubei Institute of Aerospace ChemotechnologyXiangyang 441003China

Perovskite solar cells(PSCs)exhibit significant development potential in the last decade due to their high efficiency and low manufacturing cost,with power conversion efficiencies(PCE)as high as 26.1％.How-ever,several problems still limit PSCs'performance and industrialization,including layer defects,energy level mismatch,and chemical *** are a promising class of two-dimensional(2D)tran-sition metal carbides and nitrides with excellent hydrophilicity,the tunable figure of merit,desirable electrical conductivity,abundant surface chemical end groups,and low-temperature solution *** properties make MXenes easy to combine with other materials and enrich their composites'physical and chemical properties,making them more useful in *** review systematically summa-rizes the relationship and development of PSCs and *** strategies for combining MXenes with various layer components in PSCs were ***,we discussed the advantages of MXenes as the hole-transporting layer,electron-transporting layer,perovskite active layer,and ***,we look forward to future research on MXene-based materials in the field of PSC and the next step of commercialization.

关键词： Perovskite solar cells MXenes High-efficiency Two-dimensional materials

来源：评论

学校读者我要写书评

暂无评论

Correction to: Calcination Temperature Impacting the Structure and Activity of CuAl Catalyst in Aqueous Glycerol Hydrogenolysis to 1,2-Propanediol (Topics in Catalysis, (2025), 68, 3-4, (318-331), 10.1007/s11244-024-02032-5)

引用

Topics in Catalysis 2025年 1-2页

作者： Mane, Rasika Potdar, Aparna Jeon, Yukwon Rode, Chandrashekhar School of Chemistry and Chemical Engineering Queen’s University Belfast David Keir Building Stranmillis Road BelfastBT9 5AG United Kingdom Panchwati Pashan Road Pune411008 India Department of Environmental and Energy Engineering Yonsei University Gangwon-do Wonju26493 Korea Republic of Chemical Engineering and Process Development Division CSIR-National Chemical Laboratory Dr. Homi Bhabha Road Pashan Pune411008 India

In this Article the wrong figure appeared as Fig. 7.;the Figure should have appeared as shown below Incorrect version: Correct version: The original article has been corrected. © The Author(s) 2025.

关键词：

来源：评论

学校读者我要写书评

暂无评论

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

请选择保存的检索档案：

请选择收藏分类：

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

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

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：