检索结果-内蒙古大学图书馆

SSRN 2024年

作者： Lisboa, Halana Santos Nascimento, Victor Ruan Silva da Silva, Alan Rozendo Campos de Resende, Iraí Tadeu Ferreira Bharagava, Ram Naresh Saratale, Rijuta Ganesh Saratale, Ganesh Dattatraya de Souza, Ranyere Lucena Figueiredo, Renan Tavares Ferreira, Luiz Fernando Romanholo Catalysis Energy and Materials Laboratory Institute of Technology and Research Tiradentes University Av. Murilo Dantas 300 SE Aracaju Brazil Food Research Laboratory Institute of Technology and Research Tiradentes University Av. Murilo Dantas 300 SE Aracaju Brazil Federal Institute of Education Science Technology of Sergipe Av. Lourival Batista SE Lagarto Brazil Lucknow226 025 India Research Institute of Integrative Life Sciences Dongguk University–Seoul Ilsandong-gu Goyang–si Gyeonggido10326 Korea Republic of Department of Food Science and Biotechnology Dongguk University-Seoul Ilsandong-gu Goyang-si Gyeonggido10326 Korea Republic of Graduate Program in Genomic Sciences and Biotechnology Catholic University of Brasília Brasília71.966-700 Brazil

Amid the global water stress affecting billions, the importance of saltwater desalination technologies is evident, given the abundance of seawater on Earth. Solar distillation emerges as a sustainable solution, harnessing renewable energy and employing user-friendly equipment. This study focuses on enhancing self-sustaining technologies reliant on solar energy, such as solar collectors, aluminum oxide/water nanofluid, a basin coated with titanium dioxide nanoparticles, and copper fins for improved heat management. These modifications yielded a remarkable 58% increase in the daily production of distilled water. In addition, an Artificial Neural Network (ANN) model was developed, utilizing inputs such as solar radiation, wind speed, ambient and basin temperature, and glass cover temperature to forecast water production. The robustness of the ANN was validated through a high coefficient of determination (0.9948) and low errors (mean absolute error: 2.2174, mean squared error: 3.0210), underscoring its practical utility in predicting desalination system productivity prior to implementation. Furthermore, Garson's algorithm was employed to assess the significance of process variables, providing valuable insights into system optimization. Overall, this research offers a comprehensive exploration of advancements in solar distillation technologies, emphasizing their potential for addressing water scarcity challenges and paving the way for sustainable water management practices. © 2024, The Authors. All rights reserved.

关键词： Aluminum oxide

来源：评论

学校读者我要写书评

暂无评论

Alumina sol bonded castables for blast furnace main troughs. Part 1 - dispersants, gelling agents and secondary binders.

引用

Ceramics International 2025年

作者： L.B. Nascimento V.G. Domiciano V.C. Pandolfelli RHI Magnesita GmbH Technology Center Leoben Austria Federal University of São Carlos Graduate Program in Materials Science and Engineering São Carlos Brazil RHI Magnesita Research and Development Center Contagem Brazil

Calcium aluminate cement (CAC) is broadly used in refractory compositions due to its advantages, although CaO can affect the castable’s hot properties when silica is present. The need for higher-temperature applications and tougher conditions has led to innovations in high-performance materials, focusing on reducing CAC content and using binders without CaO or SiO 2 . Although progress has been made in their application, these binders still have limitations. Colloidal alumina is particularly promising for generating a silica-free system with higher refractoriness and lower liquid phase formation, depending on the refractory composition. Based on these aspects, this work evaluated the influence of using colloidal alumina as a binder in refractory castables (Al 2 O 3 -SiC-C) for blast furnace main troughs, comparing its properties to a commercially available silica sol castable. The influence of different dispersants, gelling agents and secondary binders on the properties of both sol-bonded castables was investigated. The results indicated that citric acid was the most effective dispersant in providing suitable rheological behavior based on its interaction with alumina particles (electrostatic mechanism), magnesia sinter and calcium aluminate cement. Furthermore, using optimized amounts of citric acid, MgO and CAC, a colloidal alumina-bonded refractory composition with higher green mechanical strength and suitable working time was obtained compared to the colloidal silica castable used as reference.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Genetic mutation patterns among glioblastoma patients in the Taiwanese population – insights from a single institution retrospective study

引用

Cancer Gene Therapy 2024年第6期31卷 894-903页

作者： Huang, Yu-Fen Chiao, Ming-Tsang Hsiao, Tzu-Hung Zhan, Yong-Xiang Chen, Tse-Yu Lee, Chung-Hsin Liu, Szu-Yuan Liao, Chih-Hsiang Cheng, Wen-Yu Yen, Chun-Ming Lai, Chih-Ming Chen, Jun-Peng Shen, Chiung-Chyi Yang, Meng-Yin Department of Neurosurgery Neurological Institute Taichung Veterans General Hospital Taichung Taiwan Department of Medical Research Taichung Veterans General Hospital Taichung 40705 Taiwan Precision Medicine Center Taichung Veterans General Hospital Taichung 40705 Taiwan Doctoral Program in Translational Medicine National Chung Hsing University Taichung Taiwan Rong Hsing Translational Medicine Research Center National Chung Hsing University Taichung Taiwan Institute of Medicine Chung Shan Medical University Taichung 402 Taiwan Graduate Institute of Life Science Department of Life Science College of Life Science National Chung Hsing University Taichung Taiwan Department of Post-Baccalaureate Medicine College of Medicine National Chung Hsing University Taichung Taiwan School of Medicine Taipei Medical University Taipei Taiwan Department of Minimally Invasive Skull Base Neurosurgery Neurological Institute Taichung Veterans General Hospital Taichung Taiwan Department of Physical Therapy Hung Kuang University Taichung Taiwan Institute of Biomedical Sciences National Chung Hsing University Taichung Taiwan School of Medicine National Defense Medical Center Taipei Taiwan Department of Critical Care Medicine Taichung Veterans General Hospital Taichung Taiwan Functional Neurosurgery Division Neurological Institute Taichung Veterans General Hospital Taichung Taiwan Institute of Molecular Biology College of Life Science National Chung Hsing University Taichung Taiwan Biostatistics Task Force Taichung Veterans General Hospital Taichung Taiwan Basic Medical Education Center Central Taiwan University of Science and Technology Taichung Taiwan

This study utilized Next-Generation Sequencing (NGS) to explore genetic determinants of survival duration in Glioblastoma Multiforme (GBM) patients. We categorized 30 primary GBM patients into two groups based on their survival periods: extended survival (over two years, N = 17) and abbreviated survival (under two years, N = 13). For identifying pathogenic or likely pathogenic variants, we leveraged the ClinVar database. The cohort, aged 23 to 66 (median: 53), included 17 patients in Group A (survival >2 years, 10 males, 7 females), and 13 patients in Group B (survival <2 years, 8 males, 5 females), with a 60% to 40% male-to-female ratio. Identified mutations included CHEK2 (c.1477 G > A, p.E493K), IDH1 (c.395 G > A, p.R132H), and TP53 mutations. Non-coding regions exhibited variants in the TERT promoter (c.-146C > T, c.-124C > T) and TP53 RNA splicing site (c.376-2 A > C, c.376-2 A > G). While Group A had more mutations, statistical significance wasn’t reached, likely due to sample size. Notably, TP53, and ATR displayed a trend toward significance. Surprisingly, TP53 mutations were more prevalent in Group A, contradicting Western findings on poorer GBM prognosis. In Taiwanese GBM patients, bevacizumab usage is linked to improved survival rates, affirming its safety and effectiveness. EGFR mutations are infrequent, suggesting potential distinctions in carcinogenic pathways. Further research on EGFR mutations and amplifications is essential for refining therapeutic approaches. TP53 mutations are associated with enhanced survival, but their functional implications necessitate detailed exploration. This study pioneers genetic analysis in Taiwanese GBM patients using NGS, advancing our understanding of their genetic landscape. © The Author(s) 2024.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Effect of Tio2 Support for Co Nanoparticle Catalysts for Hydrogen Generation from Nabh4 Hydrolysis

SSRN

引用

SSRN 2022年

作者： Altaf, Cigdem Tuc Colak, Tuluhan O. Minkina, Valentina G. Shabunya, Stanislav I. Sankir, Mehmet Demirci Sankir, Nurdan Kalinin, Vladimir I. Micro and Nanotechnology Graduate Program TOBB University of Economics and Technology Sogutozu Caddesi No 43 Sogutozu Ankara06560 Turkey A.V. Luikov Heat and Mass Transfer Institute The National Academy of Sciences of Belarus P. Brovka 15 Minsk220072 Belarus Department of Materials Science and Nanotechnology Engineering TOBB University of Economics and Technology Sogutozu Caddesi No 43 Sogutozu Ankara06560 Turkey

The influence of the structural differences in TiO2 (Degussa P25 and Mesh 325) as supporting materials for Co nanoparticles has been revealed in aqueous and alkaline NaBH4 hydrolysis. The activation energies for TiO2 (Mesh 325)/Co and Co/TiO2 (P25)/Co catalysts in aqueous solution of NaBH4 were 64.3 kJ . mol-1 and 56.76 kJ . mol-1, respectively. On the other hand, the activation energy values of the hydrolysis process in alkaline NaBH4 solutions using TiO2 (Mesh 325)/Co and TiO2 (P25)/Co catalysts have been calculated as 55 kJ . mol-1 and 45.2 kJ . mol-1, respectively. Consequently, hydrogen generation rate (HGR) for TiO2(Mesh 325)/Co and TiO2(P25)/Co in an aqueous-alkaline solution are 145 and 363 ml . min . gcat-1, respectively which are twice higher in that of aqueous NaBH4 hydrolysis reaction. © 2022, The Authors. All rights reserved.

关键词： Hydrolysis

来源：评论

学校读者我要写书评

暂无评论

Phase Stability of Hexagonal/cubic Boron Nitride Nanocomposites

arXiv

引用

arXiv 2023年

作者： Biswas, Abhijit Xu, Rui Christiansen-Salameh, Joyce Jeong, Eugene Alvarez, Gustavo A. Li, Chenxi Puthirath, Anand B. Gao, Bin Garg, Arushi Gray, Tia Kannan, Harikishan Zhang, Xiang Elkins, Jacob Pieshkov, Tymofii S. Vajtai, Robert Glen Birdwell, A. Neupane, Mahesh R. Pate, Bradford B. Ivanov, Tony Garratt, Elias J. Dai, Pengcheng Zhu, Hanyu Tian, Zhiting Ajayan, Pulickel M. Department of Materials Science and Nanoengineering Rice University HoustonTX77005 United States Sibley School of Mechanical and Aerospace Engineering Cornell University IthacaNY14853 United States Department of Physics and Astronomy Rice University HoustonTX77005 United States Department of Materials Science and Engineering Indian Institute of Technology Kanpur Kanpur208016 India Applied Physics Graduate Program Smalley-Curl Institute Rice University HoustonTX77005 United States DEVCOM Army Research Laboratory RF Devices and Circuits AdelphiMD20783 United States Naval Research Laboratory WashingtonDC20375 United States

Boron nitride (BN) is an exceptional material and among its polymorphs, two-dimensional (2D) hexagonal and three-dimensional (3D) cubic BN (h-BN and c-BN) phases are most common. The phase stability regimes of these BN phases are still under debate and phase transformations of h-BN/c-BN remain a topic of interest. Here, we investigate the phase stability of 2D/3D h-BN/c-BN nanocomposites and show that the co-existence of two phases can lead to strong non-linear optical properties and low thermal conductivity at room temperature. Furthermore, spark-plasma sintering of the nanocomposite shows complete phase transformation to 2D h-BN with improved crystalline quality, where 3D c-BN grain sizes governs the nucleation and growth kinetics. Our demonstration might be insightful in phase engineering of BN polymorphs based nanocomposites with desirable properties for optoelectronics and thermal energy management applications. © 2023, CC BY.

关键词： Nanocomposites

来源：评论

学校读者我要写书评

暂无评论

Enhancing wound healing and adhesion through dopamine-assisted gelatin-silica hybrid dressings

引用

International Journal of Biological Macromolecules 2024年第Part2期258卷 128845页

作者： Lin, Yu-Chien Wang, Huey-Yuan Tang, Yao-Chun Lin, Wan-Rong Tseng, Ching-Li Hu, Chih-Chien Chung, Ren-Jei Department of Chemical Engineering and Biotechnology National Taipei University of Technology Taipei10608 Taiwan School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Avenue Singapore639798 Singapore Department of Stomatology MacKay Memorial Hospital Taipei104217 Taiwan Graduate Institute of Biomedical Materials and Tissue Engineering College of Biomedical Engineering Taipei Medical University Taipei11031 Taiwan International Ph. D. Program in Biomedical Engineering College of Biomedical Engineering Taipei Medical University Taipei11031 Taiwan Research Center of Biomedical Device College of Biomedical Engineering Taipei Medical University Taipei11031 Taiwan International Ph. D. Program in Cell Therapy and Regenerative Medicine College of Medicine Taipei Medical University Taipei11031 Taiwan Bone and Joint Research Center Chang Gung Memorial Hospital Linkou33305 Taiwan Taipei10608 Taiwan

Gelatin, widely employed in hydrogel dressings, faces limitations when used in high fluid environments, hindering effective material adhesion to wound sites and subsequently reducing treatment efficacy. The rapid degradation of conventional hydrogels often results in breakdown before complete wound healing. Thus, there is a pressing need for the development of durable adhesive wound dressings. In this study, 3-glycidoxypropyltrimethoxysilane (GPTMS) was utilized as a coupling agent to create gelatin-silica hybrid (G-H) dressings through the sol-gel method. The coupling reaction established covalent bonds between gelatin and silica networks, enhancing structural stability. Dopamine (DP) was introduced to this hybrid (G-H-D) dressing to further boost adhesiveness. The efficacy of the dressings for wound management was assessed through in-vitro and in-vivo tests, along with ex-vivo bioadhesion testing on pig skin. Tensile bioadhesion tests demonstrated that the G-H-D material exhibited approximately 2.5 times greater adhesion to soft tissue in wet conditions compared to pure gelatin. Moreover, in-vitro and in-vivo wound healing experiments revealed a significant increase in wound healing rates. Consequently, this material shows promise as a viable option for use as a moist wound dressing. © 2023

关键词： Adhesion

来源：评论

学校读者我要写书评

暂无评论

Reduction of interface defects in gate-recessed GaN HEMTs by neutral beam etching

引用

materials Today Advances 2024年 23卷

作者： Yu, Chia Hao Chiang, Wei Hsiang Chen, Yi-Ho Samukawa, Seiji Wuu, Dong Sing Chung, Chin-Han Hsiao, Ching-Lien Horng, Ray Hua Institute of Electronics National Yang Ming Chiao Tung University Department of Materials Science and Engineering National Chung Hsing University Graduate Degree Program of College of Electrical and Computer Engineering National Yang Ming Chiao Tung University Institute of Comunications Engineering National Yang Ming Chiao Tung University Department of Applied Materials and Optoelectronic Engineering National Chi Nan University International College of Semiconductor Technology National Yang Ming Chiao Tung University Thin Film Physics Division Department of Physics Chemistry and Biology (IFM) Linköping University

This study investigates and compares the impact of different etching techniques on the fabrication of GaN high electron mobility transistors (HEMTs) between the inductively coupled plasma reactive ion etching (ICP-RIE) and the neutral beam etching (NBE) for the gate recess. By conducting direct current analysis, it was found that devices manufactured using the NBE exhibited superior electrical performance as compared with those produced using the ICP-RIE. These enhanced electrical characteristics include a transconductance of up to 100.4 mS/mm, a threshold voltage (V_th) of −2.3 V, an on/off current ratio of 1.1 × 10⁹, a subthreshold swing (S.S.) of 99.63 mV/dec, and a remarkably low gate leakage current. Additionally, we noted varying degrees of hysteresis in the I–V characteristics were related to process disparities possibly leading to interface defects. Multi-frequency capacitance-voltage (C–V) measurements were used to identify the interface defects at the oxide/AlGaN interface of the gate. The results revealed that devices fabricated using the NBE exhibited a lower interface defect density as compared with those fabricated using the ICP-RIE, thereby elucidating the reduced hysteresis observed in the I–V characteristics. These findings indicated the significant advantages of the NBE process in the fabrication of GaN HEMTs. © 2024 The Authors

关键词： GaN HEMTs Gate recess Interface defects Multi-frequency C–V Neutral beam etching

来源：评论

学校读者我要写书评

暂无评论

A Novel Coated Suture Displays Antimicrobial Activity Without Compromising Structural Properties

引用

Journal of Oral and Maxillofacial Surgery 2024年第9期82卷 1147-1162页

作者： Daood, Umer Ilyas, Muhammad Sharjeel Ashraf, Mariam Akbar, Munazza Asif, Amina Khan, Abdul Samad Sidhu, Preena Sheikh, Zeeshan Davamani, Fabian Matinlinna, Jukka Peters, Ove A. Yiu, Cynthia Associate Professor Head of Restorative Division Division of Restorative Dentistry School of Dentistry International Medical University Kuala Lumpur Kuala Lumpur Malaysia Assistant Professor Department of Oral Biology Post Graduate Medical Institute Lahore Pakistan Associate Professor Postgraduate Medical Institute Lahore Pakistan Professor Postgraduate Medical Institute Lahore Pakistan Assistant Professor Postgraduate Medical Institute Lahore Pakistan Professor Department of Restorative Dental Sciences College of Dentistry Imam Abdulrahman Bin Faisal University Dammam Saudi Arabia Senior Lecturer Head of Restorative Division Division of Restorative Dentistry School of Dentistry International Medical University Kuala Lumpur Kuala Lumpur Malaysia Assistant Professor Department of Periodontology Applied Oral Sciences & Dental Clinical Sciences Faculty of Dentistry Dalhousie University Halifax NS Canada Associate Professor Division of Human Biology Faculty of Biomedical Science School of Health Sciences International Medical University Kuala Lumpur Malaysia Professor Applied Dental Sciences Division of Human Biology Dental Materials Science Applied Oral Sciences & Community Dental Care Faculty of Dentistry The University of Hong Kong Hong Kong China Professor Applied Dental Sciences University of Manchester School of Dentistry Manchester United Kingdom Professor Program Convenor Department of Endodontics Arthur A Dugoni School of Dentistry University of the Pacific San Francisco Professor Program Convenor Department of Endodontics The University of Queensland Brisbane QLD Australia Professor Head of Paediatric Dentistry Pediatric Dentistry Division Paediatric Dentistry and Orthodontics Faculty of Dentistry The University of Hong Kong Hong Kong China

Background: Treated or coated sutures promise to prevent contamination of wounds. Purpose: The purpose of the study was to coat surgical sutures with a new quaternary ammonium silane (QAS) antimicrobial compound at two different application temperatures and then to evaluate the resulting structural, physical, mechanical, and biological properties. Study Design, Setting, Sample: In vitro and in vivo studies were conducted using male albino Wistar rats approved by the Joint Ethical Committee of IMU and postgraduate Medical Institute, Lahore. Only suture samples, coated uniformly with verified presence of the compound and of adequate length were used. Samples which were not coated uniformly and with inadequate length or damaged were excluded. Predictor Variable: Predictor variables were sutures with and without QAS coatings and different temperatures. Sutures were coated with QAS at 0.5 and 1.0% wt/vol using the dip coating technique and sutures with and without QAS coating were tested at 25 and 40 °C temperatures. Main Outcome Variable(s): Outcome variables of structural and physico-mechanical properties of QAS-coated and non-coated sutures were measured using Fourier transform infrared spectroscopy (for structural changes), confocal laser and scanning electron (for diameter changes), and tensile strength/modulus (for mechanical testing). Biologic outcome variables were tested (bacterial viability);macrophage cultures from Wistar rats were tested (M1/M2 polarization detecting IL-6 and IL-10). Macrophage cells were analyzed with CD80+ (M1) and CD163+ (M2). Chemotaxis index was calculated as a ratio of quantitative fluorescence of cells. Covariates: Not applicable. Analyses: Ordinal data among groups were compared using the Wilcoxon Mann-Whitney U test along with the comparison of histological analysis using the Wilcoxon Sign-rank test (P < .05). Results: Fourier transform infrared spectroscopy peak at 1490 cm⁻¹ confirmed the presence of QAS on suture's surfa

关键词：

来源：评论

学校读者我要写书评

暂无评论

Polarization-sensitive in-sensor computing in chiral organic integrated 2D p-n heterostructures for mixed-multimodal image processing

引用

Nature Communications 2025年第1期16卷 1-11页

作者： Lee, Je-Jun Han, Seong-Jun Choi, Changsoon Seo, Chaewon Hwang, Seungkwon Kim, Jihyun Hong, Jung Pyo Jang, Jisu Kyhm, Jihoon Kim, Jung Woo Yu, Byoung-Soo Lim, Jung Ah Wang, Gunuk Kang, Joohoon Kim, Yonghun Ahn, Suk-Kyun Ahn, Jongtae Hwang, Do Kyung Center of Quantum Technology Post-Silicon Semiconductor Institute Korea Institute of Science and Technology (KIST) Seoul South Korea KU-KIST Graduate School of Converging Science and Technology Korea University Seoul South Korea School of Chemical Engineering Pusan National University Busan South Korea Energy and Environment Materials Research Division Korea Institute of materials Science (KIMS) Changwon South Korea Department of Chemical and Biomolecular Engineering Yonsei University Seoul South Korea Technology Support Center Research Resources Division Korea Institute of Science and Technology (KIST) Seoul South Korea Division of Nanoscience & Technology KIST School University of Science and Technology (UST) Seoul South Korea Soft Hybrid Materials Research Center Advanced Materials Research Division Korea Institute of Science and Technology (KIST) Seoul South Korea Department of Physics Changwon National University Changwon South Korea

Sensor-based computing minimizes latency and energy consumption by processing data at the capture point, thereby eliminating extensive data transfer and enabling real-time decision-making. Here, we present a breakthrough in in-sensor computing via circularly polarized light detectors that integrate cholesteric liquid crystal reflectors with two-dimensional van der Waals p-n heterostructures. Our device exhibits a high dissymmetry factor (1.90), allowing effective separation of mixed circularly polarized images, along with a rapid photoresponse (4 μs) and wide linear dynamic range (up to 114.1 dB), suitable for analog multiply-and-accumulate operations in convolution-based in-sensor computing. Harnessing these detectors, we propose mixed-multimodal in-sensor computing using the chiral state of circularly polarized light to dynamically control responsivity, which enables the blending of two arbitrary image processing modes within a single, non-reconfigurable circuit. By effectively integrating polarization-sensitive detectors into the in-sensor computing framework, the proposed architecture preserves kernel optimization capabilities while simplifying circuit complexity. © The Author(s) 2025.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The Japanese Vision for the Black Hole Explorer Mission

arXiv

引用

arXiv 2024年

作者： Akiyama, Kazunori Niinuma, Kotaro Hada, Kazuhiro Doi, Akihiro Hagiwara, Yoshiaki Higuchi, Aya E. Honma, Mareki Kawashima, Tomohisa Kolev, Dimitar Koyama, Shoko Masui, Sho Ohsuga, Ken Sano, Hidetoshi Takami, Hideki Tsunetoe, Yuh Uzawa, Yoshinori Akahori, Takuya Akiyama, Yuto Galison, Peter Hayashi, Takayuki J. Hirota, Tomoya Inoue, Makoto Iwata, Yuhei Johnson, Michael D. Kino, Motoki Kofuji, Yutaro Mizuno, Yosuke Moriyama, Kotaro Nagai, Hiroshi Nakamura, Kenta Notsu, Shota Ono, Fumie Oya, Yoko Oyama, Tomoaki Rana, Hannah Saida, Hiromi Saito, Ryo Saito, Yoshihiko Sasada, Mahito Sawada-Satoh, Satoko Takahashi, Mikiya M. Takamura, Mieko Tong, Edward Tsuji, Hiroyuki Yoshioka, Shogo Watanabe, Yoshimasa Massachusetts Institute of Technology Haystack Observatory WestfordMA01886 United States Mizusawa VLBI Observatory National Astronomical Observatory of Japan Iwate023-0861 Japan Black Hole Initiative Harvard University CambridgeMA02138 United States Graduate School of Sciences and Technology for Innovation Yamaguchi University Yamaguchi753-8512 Japan The Graduate School of Science Nagoya City University Aichi467-0001 Japan Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Kanagawa252-5210 Japan Department of Space and Astronautical Science The Graduate University for Advanced Studies SOKENDAI Kanagawa229-8510 Japan Natural Science Laboratory Toyo University Tokyo112-8606 Japan Division of Science School of Science and Engineering Tokyo Denki University Saitama350-0394 Japan Department of Astronomy Graduate School of Science The University of Tokyo Tokyo113-0033 Japan Institute for Cosmic Ray Research The University of Tokyo Chiba277-8582 Japan Space Communication Systems Laboratory Wireless Networks Research Center National Institute of Information and Communications Technology Tokyo184-8795 Japan Graduate School of Science and Technology Niigata University Niigata950-2181 Japan Advanced Technology Center National Astronomical Observatory of Japan Tokyo181-8588 Japan Center for Computational Sciences University of Tsukuba Ibaraki305-8577 Japan Faculty of Engineering Gifu University Gifu501-1193 Japan Harvard University CambridgeMA02138 United States Azabu Junior and Senior High School Tokyo106-0046 Japan Astronomical Science Program The Graduate University for Advanced Studies SOKENDAI Tokyo181-8588 Japan Institute of Astronomy and Astrophysics Academia Sinica Taipei10617 Taiwan Center for Astrophysics Harvard & Smithsonian CambridgeMA02138 United States Kogakuin University of Technology & Engineering Academic Support Center 2665-1 Nakano Hachioji Tokyo192-0015 Japan Tsung-Dao Lee Institut

The Black Hole Explorer (BHEX) is a next-generation space very long baseline interferometry (VLBI) mission concept that will extend the ground-based millimeter/submillimeter arrays into space. The mission, closely aligned with the science priorities of the Japanese VLBI community, involves an active engagement of this community in the development of the mission, resulting in the formation of the Black Hole Explorer Japan Consortium. Here we present the current Japanese vision for the mission, ranging from scientific objectives to instrumentation. The Consortium anticipates a wide range of scientific investigations, from diverse black hole physics and astrophysics studied through the primary VLBI mode, to the molecular universe explored via a potential single-dish observation mode in the previously unexplored 50-70 GHz band that would make BHEX the highest-sensitivity explorer ever of molecular oxygen. A potential major contribution for the onboard instrument involves supplying essential elements for its high-sensitivity dual-band receiving system, which includes a broadband 300 GHz SIS mixer and a space-certified multi-stage 4.5K cryocooler akin to those used in the Hitomi and XRISM satellites by the Japan Aerospace Exploration Agency. Additionally, the Consortium explores enhancing and supporting BHEX operations through the use of millimeter/submillimeter facilities developed by the National Astronomical Observatory of Japan, coupled with a network of laser communication stations operated by the National Institute of Information and Communication technology. Copyright © 2024, The Authors. All rights reserved.

关键词： Radio astronomy

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：