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Technical specifications to meet the requirements of an Automatic Code Compliance Checking tool and current developments in infrastructure construction

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RESULTS IN engineering 2022年 16卷

作者： Schuk, v Jimenez, M. E. Pombo Martin, U. Univ Stuttgart Inst Railway & Transportat Engn Pfaffenwaldring 7-3 Stock D-70569 Stuttgart Germany

Building Information Modeling has revolutionized the construction industry by, for example, contributing to the automation of different activities related to the design, planning, and construction of civil works. Tasks such as the review of construction-related codes and regulations, which today still require a great deal of human effort, have begun to be automated through the development of digital applications and tools, thus resulting in the BIM use case Automated Code Compliance Checking (ACCC). So far, however, the research and development around this topic have been focused mainly on the building area, leaving a gap for the infrastructure sector. With this article, the authors intend to contribute to closing this gap, by providing an overview of the current state of development of ACCC tools in infrastructure construction. This overview supports the identification of challenges and requirements for the development of such tools, which are also discussed in detail in the current work. Finally, the author's considerations regarding the formalization and structuring of the engineering knowledge and infrastructure data required for the development of ACCC tools, as well as its mapping in a graph database, which allows access to all the necessary and relevant information for the code checking process, are presented. The result of the research carried out is the detailed structuring of the regulations and their rules from infra-structure construction and the possible modeling implementation in a graph database. In practice, this should help the leading software manufacturers in cooperation with infrastructure engineers, to develop a full-fledged ACCC tool.

关键词： BIM Formalization of engineering knowledge Classification of regulation rules Automatic Code Compliance Checking Structured infrastructure data Graph -based data modeling

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High efficiency titanium nitride bowtie nanoparticle and upconverter layer incorporated kesterite tandem solar cell

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RESULTS IN PHYSICS 2023年 55卷

作者： Akhtary, Nowshin Zubair, Ahmed Bangladesh Univ Engn & Technol Dept Elect & Elect Engn Dhaka 1205 Bangladesh

Thin-film photovoltaic (Pv) technology offers an economically viable and flexible way to harness solar energy. Using a material that absorbs more solar light than silicon significantly reduces material consumption and costs. Solar cells based on the kesterite mineral structure and its alloys stand out from other thin-film solar cells due to their earth-abundance and non-toxicity. Incorporating plasmonic nanoparticles in the kesterite absorber layer opens a promising path of enhancing light trapping efficiency. Again, the main losses in solar cells result from the incomplete utilization of the solar spectrum. The otherwise unused sub-bandgap photons can be utilized by adding an upconverting layer on a solar cell. This paper demonstrates a theoretical design and performance analysis of a high-efficiency kesterite solar cell by incorporating titanium nitride (TiN) plasmonic bowtie nanoparticles (NPs) and an upconverter layer. We compared the optical characteristics of various shapes and sizes of nanoparticles to find the optimum solar cell efficiency. The 100 nm thick bowtie-shaped NP had the highest power conversion efficiency, eta of 24.80% and had the open circuit voltage v-oc = 0.59 v, and short circuit current density, J(sc) = 45.43 mA/cm(2). The absorbed power for bowtie-shaped TiN NP incorporation enhanced the average absorption from similar to 61% to similar to 88% for the kesterite layer. For 100 nm thickness, the absorption enhancement, g, was greater than 1 for the whole spectral range, and the maximum value was similar to 1.2. Incorporating a yttrium aluminum garnet upconverter layer increased the solar cell efficiency to similar to 27.44.%.

关键词： Plasmonic nanoparticles Kesterite TiN Bowtie Upconverter layer Power-voltage characteristic current density-voltage characteristic Solar cells

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Computational pathology: A survey review and the way forward

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Journal of Pathology Informatics 2024年 15卷 100357-100357页

作者： Hosseini, Mahdi S. Bejnordi, Babak Ehteshami Trinh, vincent Quoc-Huy Chan, Lyndon Hasan, Danial Li, Xingwen Yang, Stephen Kim, Taehyo Zhang, Haochen Wu, Theodore Chinniah, Kajanan Maghsoudlou, Sina Zhang, Ryan Zhu, Jiadai Khaki, Samir Buin, Andrei Chaji, Fatemeh Salehi, Ala Nguyen, Bich Ngoc Samaras, Dimitris Plataniotis, Konstantinos N. Department of Computer Science and Software Engineering (CSSE) Concordia Univeristy Montreal H3H 2R9 QC Canada Qualcomm AI Research Qualcomm Technologies Netherlands B.V. Amsterdam Netherlands Institute for Research in Immunology and Cancer of the University of Montreal Montreal H3T 1J4 QC Canada The Edward S. Rogers Sr. Department of Electrical & Computer Engineering (ECE) University of Toronto Toronto M5S 3G4 ON Canada Huron Digitial Pathology St. Jacobs N0B 2N0 ON Canada Department of Electrical and Computer Engineering University of New Brunswick Fredericton E3B 5A3 NB Canada University of Montreal Hospital Center Montreal H2X 0C2 QC Canada Department of Computer Science Stony Brook University Stony Brook 11794 NY United States

Computational Pathology (CPath) is an interdisciplinary science that augments developments of computational approaches to analyze and model medical histopathology images. The main objective for CPath is to develop infrastructure and workflows of digital diagnostics as an assistive CAD system for clinical pathology, facilitating transformational changes in the diagnosis and treatment of cancer that are mainly address by CPath tools. With evergrowing developments in deep learning and computer vision algorithms, and the ease of the data flow from digital pathology, currently CPath is witnessing a paradigm shift. Despite the sheer volume of engineering and scientific works being introduced for cancer image analysis, there is still a considerable gap of adopting and integrating these algorithms in clinical practice. This raises a significant question regarding the direction and trends that are undertaken in CPath. In this article we provide a comprehensive review of more than 800 papers to address the challenges faced in problem design all-the-way to the application and implementation viewpoints. We have catalogued each paper into a model-card by examining the key works and challenges faced to layout the current landscape in CPath. We hope this helps the community to locate relevant works and facilitate understanding of the field's future directions. In a nutshell, we oversee the CPath developments in cycle of stages which are required to be cohesively linked together to address the challenges associated with such multidisciplinary science. We overview this cycle from different perspectives of data-centric, model-centric, and application-centric problems. We finally sketch remaining challenges and provide directions for future technical developments and clinical integration of CPath. For updated information on this survey review paper and accessing to the original model cards repository, please refer to GitHub. Updated version of this draft can also be found from arXiv.

关键词： Clinical pathology Computer aided diagnosis (CAD) Deep learning Digital pathology Survey Whole slide image (WSI)

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Magnetic susceptibility, optical, and adhesive properties of Co40Fe40v10B10 films

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SURFACE engineering 2020年第4期36卷 405-410页

作者： Liu, Wen-Jen Ou, Sin-Liang Chang, Yung-Huang Chen, Yuan-Tsung Wang, Yu-Tang Liang, You-Cheng Tseng, Jiun-Yi Ch, Po-Wei I Shou Univ Dept Mat Sci & Engn Kaohsiung Taiwan Da Yeh Univ Bachelor Program Design & Mat Med Equipment & Dev Changhua Taiwan Natl Yunlin Univ Sci & Technol Bachelor Program Interdisciplinary Studies Touliu Taiwan Natl Yunlin Univ Sci & Technol Grad Sch Mat Sci 123 Univ RdSect 3 Touliu 64002 Yunlin Taiwan Acad Sinica Inst Phys Taipei Taiwan

The low-frequency alternating current magnetic susceptibility (chi(ac)) property decreased when the frequency increased. The highest chi(ac) meant the spin sensitivity was maximized at an f(res). Of all CoFevB thicknesses, the 20-mm thickness had the highest chi(ac) value (9.85 x 10(-3)) at an f(res) of 1000 Hz. The transmittance percentage decreased from 43% to 10% as the thicknesses changed from 10 to 40 nm. The absorbance of the CoFevB films decreased. Finally, the surface energy revealed the lowest value at 20 nm. A high surface energy indicates high adhesive characteristics. The maximal surface energy of the 40-nm thickness was 38 mJ mm(-2), indicating excellent adhesion. The optimal magnetic performance of 20-nm film, because it exhibits the highest chi(ac) value.

关键词： Cobalt iron vanadium boron alloy low-frequency alternate-current magnetic susceptibility resonance frequency transmittance percentage adhesion

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CCAT: A status update on the EoR-Spec instrument module for Prime-Cam

arXiv

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arXiv 2024年

作者： Freundt, Rodrigo Li, Yaqiong Henke, Doug Austermann, Jason Burgoyne, James R. Chapman, Scott Choi, Steve K. Duell, Cody J. Huber, Zach Niemack, Michael Nikola, Thomas Lin, Lawrence Riechers, Dominik A. Stacey, Gordon vaskuri, Anna K. vavagiakis, Eve M. Wheeler, Jordan Zou, Bugao Department of Astronomy Cornell University IthacaNY14853 United States Department of Physics Cornell University IthacaNY14853 United States NRC Herzberg Astronomy and Astrophysics 5071 West Saanich Rd VictoriaBCV9E 2E7 Canada Quantum Sensors Division National Institute of Standards and Technology BoulderCO80305 United States Department of Physics and Astronomy University of British Columbia VancouverV6T 1Z1 Canada Department of Physics and Atmospheric Science Dalhousie University HalifaxNSB3H 4R2 Canada Department of Physics and Astronomy University of California RiversideCA92521 United States Cornell Center for Astrophysics and Planetary Sciences Cornell University IthacaNY14853 United States Institut für Astrophysik Universität zu Köln Zülpicher Strasse 77 Köln50937 Germany Department of Physics Duke University DurhamNC27708 United States Department of Applied and Engineering Physics Cornell University IthacaNY14853 United States

The Epoch of Reionization Spectrometer (EoR-Spec) is an upcoming Line Intensity Mapping (LIM) instrument designed to study the evolution of the early universe (z = 3.5 to 8) by probing the redshifted [CII] 158 µm fine-structure line from aggregates of galaxies. The [CII] emission is an excellent tracer of star formation since it is the dominant cooling line from neutral gas heated by OB star light and thus can be used to probe the reionization of the early Universe due to star formation. EoR-Spec will be deployed on Prime-Cam, a modular direct-detection receiver for the 6-meter Fred Young Submillimeter Telescope (FYST), currently under construction by CPI vertex Antennentechnik GmbH and to be installed near the summit of Cerro Chajnantor in the Atacama Desert. This instrument features an image plane populated with more than 6500 Microwave Kinetic Inductance Detectors (MKIDs) that are illuminated by a 4-lens optical design with a cryogenic, scanning Fabry-Perot Interferometer (FPI) at the pupil of the optical system. The FPI is designed to provide a spectral resolving power of R ∼ 100 over the full spectral range of 210–420 GHz. EoR-Spec will tomographically survey the E-COSMOS and E-CDFS fields with a depth of about 4000 hours over a 5 year period. Here we give an update on EoR-Spec’s final mechanical/optical design and the current status of fabrication, characterization and testing towards first light in 2026. © 2024, CC BY.

关键词： Fabry-Perot interferometers

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Blockchain for Energy Market: A Comprehensive Survey

arXiv

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arXiv 2024年

作者： Jiang, Tianqi Luo, Haoxiang Yang, Kun Sun, Gang Yu, Hongfang Huang, Qi vasilakos, Athanasios v. Glasgow College University of Electronic Science and Technology of China Chengdu611731 China Key Laboratory of Optical Fiber Sensing and Communications Ministry of Education University of Electronic Science and Technology of China Chengdu611731 China Guangyuan Power Supply Company State Grid Sichuan Electric Power Company Guangyuan628033 China Peng Cheng Laboratory Shenzhen518066 China Sichuan Provincial Key Laboratory of Power System Wide-Area Measurement and Control University of Electronic Science and Technology of China Chengdu611731 China School of Information Engineering Southwest University of Science and Technology Mianyang621010 China Center for AI Research University of Agder Grimstad4879 Norway

The energy market encompasses the behavior of energy supply and trading within a platform system. By utilizing centralized or distributed trading, energy can be effectively managed and distributed across different regions, thereby achieving market equilibrium and satisfying both producers and consumers. Additionally, the energy market can address future production control and environmental concerns such as energy shortages and environmental deterioration. However, recent years have presented unprecedented challenges and difficulties for the development of the energy market. These challenges include regional energy imbalances, volatile energy pricing, high computing costs, and issues related to transaction information disclosure. These factors have hindered the smooth operation of the energy market. Researchers widely acknowledge that the security features of blockchain technology can enhance the efficiency of energy transactions and establish the fundamental stability and robustness of the energy market. This type of blockchain-enabled energy market is commonly referred to as an energy blockchain. currently, there is a burgeoning amount of research in this field, encompassing algorithm design, framework construction, and practical application. It is crucial to organize and compare these research efforts to facilitate the further advancement of energy blockchain. This survey aims to comprehensively review the fundamental characteristics of blockchain and energy markets, highlighting the significant advantages of combining the two. Moreover, based on existing research outcomes, we will categorize and compare the current energy market research supported by blockchain in terms of algorithm design, market framework construction, and the policies and practical applications adopted by different countries. Finally, we will address current issues and propose potential future directions for improvement, to provide guidance for the practical implementation of blockchain in the

关键词： Deterioration

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engineering the Interfacial Structure of Heavy Metal-Free Colloidal Heterostructured Quantum Dots for High-Efficiency Photoelectrochemical Water Oxidation without Co-Catalyst

ADVANCED ENERGY AND SUSTAINABILITY RESEARCH

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ADvANCED ENERGY AND SUSTAINABILITY RESEARCH 2023年第2期4卷

作者： Zhao, Hongyang Wang, Wenhao Li, Xin Li, Peihang Cai, Mengke You, Yimin Wang, Rui Channa, Ali Imran Tong, Xin Wang, Zhiming M. Univ Elect Sci & Technol China Inst Fundamental & Frontier Sci Chengdu 610054 Peoples R China Univ Elect Sci & Technol China Yangtze Delta Reg Inst Huzhou Huzhou 313001 Peoples R China Hongik Univ Dept Mat Sci & Engn Seoul 04066 South Korea Chengdu Univ Inst Adv Study Chengdu 610106 Sichuan Peoples R China

Solar-driven photoelectrochemical (PEC) water splitting cell fabricated using colloidal quantum dots (QDs) is deemed as low-cost and high-efficiency solar-to-fuel conversion systems for future carbon neutrality. However, current QDs-based PEC technologies are still hindered by several critical restrictions including the sluggish water oxidation kinetics and the frequent use of highly toxic QDs (e.g., Pb, Cd-chalcogenides) as well as co-catalysts, thus limiting their prospective commercial developments. Herein, the optoelectronic properties of heavy metal-free InP/ZnSe core/shell QDs are tailored by introducing the interfacial GaP layers with variable thicknesses. As-prepared InP/GaP/ZnSe core/shell QDs are used to sensitize TiO2 film as photoanodes for PEC water oxidation, showing an unprecedented photocurrent density of 4.1 mA cm(-2) at 1.23 v versus reversible hydrogen electrode with excellent durability under one sun AM 1.5 G illumination. It is demonstrated that engineering the thickness of the interfacial GaP layer enables optimized optical properties and can introduce appropriate intermediate energy levels to promote the charge extraction from the InP core to the ZnSe shell for enhanced PEC water oxidation efficiency. This study paves the way for interfacial engineering of "green" core/shell QDs to realize cost-effective, environment-friendly, high-performance, and co-catalyst-free QDs-based PEC water splitting system.

关键词： colloidal quantum dots environment-friendly InP GaP ZnSe interfacial layer engineering photoelectrochemical systems

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Low-bandgap polymers with quinoid unit as π bridge for high-performance solar cells

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Journal of Energy Chemistry 2020年第1期29卷 180-187,I0007页

作者： Bilal Shahid Xiyue Yuan Qian Wang Di Zhou Ergang Wang Xichang Bao Dangqiang Zhu Renqiang Yang Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101ShandongChina Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Department of Chemistry and Chemical Engineering/Applied Chemistry Chalmers University of TechnologyGothenburg SE-41296Sweden

To construct efficient low band gap polymers,increasing the Quinone structure of the polymer backbone could be one desirable *** this work,two D–Q–A–Q polymers P1 and P2 were designed and synthesized with thiophenopyrrole diketone(TPD)and benzothiadiazole(BT)unit as the core and ester linked thieno[3,4-b]thiophene(TT)segment as π-bridging,and the main focus is to make a comparative analysis of different cores in the influence of the optical,electrochemical,photochemical and morphological *** with the reported PBDTTEH–TBTTHD-i,P1 exhibited the decreased HOMO energy level of-5.38 e v and lower bandgap of 1.48 e ***,when replaced with BT core,P2 showed a red-shifted absorption profile of polymer but with up-shifted HOMO energy *** fabricated the photovoltaic devices in conventional structure,just as expected,the introduction of ester substituent made an obvious increase of vOC from 0.63 to 0.74 v for ***,due to the deep HOMO energy level,higher hole mobility and excellent phase separation with PC71 BM,a superior photovoltaic performance(PCE=7.13%)was obtained with a short-circuit current density(JSC)of 14.9 m A/cm^2,significantly higher than that of P2(PCE=2.23%).Generally,this study highlights that the strategy of inserting quinoid moieties into D–A polymers could be optional in LBG-polymers design and presents the importance and comparison of potentially competent core groups.

关键词： Low bandgap polymer Side-chain engineering Quinone structure π-bridging

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Photovoltaic performance improvement of GaAs1-xBix nanowire solar cells in terms of light trapping capability and efficiency

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SOLAR ENERGY 2021年 221卷 468-475页

作者： Roy, Debamita Samajdar, Dip Prakash Biswas, Abhijit Heritage Inst Technol Dept Elect & Commun Engn Chowbaga Rd Kolkata 700107 W Bengal India Indian Inst Informat Technol Design & Mfg Dept ECE Jabalpur 482005 Madhya Pradesh India Univ Calcutta Dept Radio Phys & Elect 92 Acharya Prafulla Chandra Rd Kolkata 700009 W Bengal India

This paper investigates optoelectmnic performance of nanowire (NW) solar cells using GaAs and its alloy GaAs1-xBix for three different mole fractions of Bi e.g., x = 0.01, 0.043, 0.078 using extensive numerical simulation in order to evaluate the potential of the alloy as a solar cell material. Finite-difference time-domain (FDTD) method is used to obtain the optimum geometric dimensions of the nanowire in order to achieve maximum photocurrent. GaAs0.922Bi0.078 NW solar cell of length 2-mu m and optimized diameter D = 140 nm with filling ratio (FR) of 0.5, produces a maximum J(sc) of 49.31 mA/cm(2) which is 23% higher than its GaAs counterpart. Additionally, GaAsBi NW exhibits much higher absorption, and lower reflection as well as transmission coefficients for the incident optical irradiation, due largely to its bandgap bowing property owing to incorporation of Bi, as compared to GaAs NW. Furthermore, we present electric field distribution and optical generation rate profiles under the incident irradiation in NWs to obtain a better insight into the device physics. various material and transport parameters of the novel alloy material required to carry out electrical simulation using Lumerical 3D charge transport simulator, are presented in detail, and the effect of SRH recombination lifetime on the electrical performance i. e., open circuit voltage v(oc )and power conversion efficiency (PCE) of the NW solar cells is studied. Our findings reveal that GaAs0.99Bi0.01 NW exhibits the maximum PCE of 34.34% found to be 6.425% larger than that of GaAs NW under AM 1.5G illumination.

关键词： FDTD GaAs1-x Bi-x Nanowires Refractive index Short circuit current density SRH recombination lifetime

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Investigation of a Solar Concentrator for Water Distillation 1

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International Conference on Thermal engineering and Management Advances, ICTEMA 2020

作者： Mahavar, Sunita Goyal, Ankit Balakin, Boris v. Department of Physics University of Rajasthan Jaipur India Western Norway University of Applied Sciences Bergen Norway NRNU Moscow Engineering Physics Institute Moscow Russia

ISBN: (数字)9789811623479

ISBN: (纸本)9789811623462

The non-availability of freshwater is one of the major problems faced by humanity. Major developments in water purification technologies are needed in the current scenario at an affordable price. Different types of treatment processes are available to supply freshwater to rural and urban areas at large and small scales. However, conventional fossil-fuel-powered desalination techniques consume extensive amounts of resources and can have damaging impact on the environment. Abundant, cheap and clean renewable energy sources are a promising alternative for powering modern desalination processes. The present paper focuses on an experimental study of a dish-type solar concentrator for water distillation. Different types of receivers (pressurized/non-pressurized and transparent/opaque) are tested, and analysis is made for the optimization of receiver design and to obtain maximum yield. Tests are also performed with transparent receiver in order to execute further tests with activated charcoal (AC), graphene and metal nanoparticle-dispersed water. In water quality test, TDS and pH values are measured before and after the experiments. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Activated charcoal Concentrated solar desalinator Concentration ratio Pressurized receivers

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