200 results
Search Results
2. The construction and evaluation of secretory expression engineering bacteria for the trans-Cry3Aa-T-HasA fusion protein against the Monochamus alternatus vector.
- Author
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Xiaohong Han, Chenyan Huang, Huan Qi, Yukun Zhu, Xinran Hu, Yingxin Wen, Yirong Long, Lei Xu, and Feiping Zhang
- Subjects
CHIMERIC proteins ,PINEWOOD nematode ,TOXINS ,CONIFER wilt ,WESTERN immunoblotting ,BACTERIA ,ENGINEERING - Abstract
Pine wood nematode disease is currently the most deadly forest disease in China, and the Monochamus alternatus is its primary vector. Controlling the M. alternatus is crucial for managing pine wood nematode disease. This study, based on the selected HasA (pGHKW4) secretory expression vector, used electroporation to combine the genetically modified high-toxicity toxin Cry3Aa-T with the entomopathogenic bacterium Yersinia entomophaga isolated from the gut of the M. alternatus. The SDS-PAGE and Western blotting techniques were employed to confirm the toxin protein's secretion capability. The engineered bacteria's genetic stability and effectiveness in controlling M. alternatus were assessed for their insecticidal activity. The results of the SDSPAGE and Western blotting analyses indicate that the HasA system effectively expresses toxin protein secretion, demonstrates certain genetic stability, and exhibits high insecticidal activity against M. alternatus. This study constructed a highly toxic entomopathogenic engineered bacterial strain against M. alternatus larvae, which holds significant implications for controlling M. alternatus, laying the foundation for subsequent research and application of this strain. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. A Review of Deep Learning Applications in Tunneling and Underground Engineering in China.
- Author
-
Su, Chunsheng, Hu, Qijun, Yang, Zifan, and Huo, Runke
- Subjects
DEEP learning ,TUNNELS ,MACHINE learning ,SUBWAY tunnels ,INFORMATION technology ,UNDERWATER tunnels ,ENGINEERING - Abstract
With the advent of the era of big data and information technology, deep learning (DL) has become a hot trend in the research field of artificial intelligence (AI). The use of deep learning methods for parameter inversion, disease identification, detection, surrounding rock classification, disaster prediction, and other tunnel engineering problems has also become a new trend in recent years, both domestically and internationally. This paper briefly introduces the development process of deep learning. By reviewing a number of published papers on the application of deep learning in tunnel engineering over the past 20 years, this paper discusses the intelligent application of deep learning algorithms in tunnel engineering, including collapse risk assessment, water inrush prediction, crack identification, structural stability evaluation, and seepage erosion in mountain tunnels, urban subway tunnels, and subsea tunnels. Finally, it explores the future challenges and development prospects of deep learning in tunnel engineering. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
4. Recent development and engineering practices of space grid structures in China.
- Author
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Luo, Yaozhi and Xue, Yu
- Subjects
- *
LARGE space structures (Astronautics) , *STRUCTURAL engineering , *STRUCTURAL engineers , *MAKERSPACES , *ENGINEERING - Abstract
Space grid structures are widely used in the field of structural engineering due to their good mechanical properties and simple construction procedures. This paper reviews the development of space grid structures and mainly introduces the development of space grid structures in China in recent years. Some typical applications of space grid structures are introduced and the technical developments are summarized. It shows that China not only has a large number of engineering applications of space grid structures, but also a rapid development of related technologies. Finally, some prospects for space grid structures are discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
5. The development and engineering practice of building cable structures in China.
- Author
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Chen, Zhihua
- Subjects
- *
DOMES (Architecture) , *CABLE structures , *ENGINEERING - Abstract
This paper introduces the development process of building cable structures in China over the past 70 years according to three stages: the initial, slow, and rapid development. It also summarizes the types of cable components and joints of building cable structures. The structural characteristics and representative projects of suspension, cable membrane, beam string (cable-supported), and cable dome structures are reviewed in this paper. Finally, the achievements and prospects of cable structures in China are discussed. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
6. From Industry 4.0 to Construction 4.0: barriers to the digital transformation of engineering and construction sectors.
- Author
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Wang, Kaiyang, Guo, Fangyu, Zhang, Cheng, and Schaefer, Dirk
- Subjects
DIGITAL transformation ,EXPLORATORY factor analysis ,INDUSTRY 4.0 ,CONSTRUCTION project management ,CONSTRUCTION industry ,ENGINEERING ,PARTIAL least squares regression - Abstract
Purpose: The purpose of this study is to systematically identify, assess, and categorize the barriers to digital transformation (DT) in the engineering and construction sectors, and thus to better understand the impact and how these sectors might be overcome. Design/methodology/approach: This study adopted a sequential mixed qualitative and quantitative data collection and analysis approach. DT barriers were first identified from relevant literature and verified by an expert panel. Then, a questionnaire survey assessing the impacts of the identified DT barriers was distributed to construction professionals in China, and 192 valid responses were retrieved. Further, the data obtained were analyzed using ranking analysis, exploratory factor analysis (EFA), and partial least squares-structural equation modeling (PLS-SEM). Findings: Based on the ranking analysis, the top three barriers are "lack of industry-specific standards and laws," "lack of clear vision, strategy and direction for DT," and "lack of support from top management for DT." EFA enabled the grouping of the 26 barriers into 3 categories: (1) lack of laws and regulations (LLR), (2) lack of support and leadership (LSL), and (3) lack of resources and professionals (LRP). The PLS-SEM analysis revealed that LLR, LSL, and LRP were found to have significant negative impacts on DT. Originality/value: These findings contribute to the body of knowledge on DT in the construction industry and help construction firms and government bodies improve the understanding of these barriers to DT and put forward relevant policies and incentives, thus seizing the DT benefits as a way to enhance construction project management. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
7. Researchers at Huanggang Normal University Report Research in Engineering (Fault Diagnosis for Modular Multilevel Converter Switching Devices via Multimodal Attention Fusion).
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FAULT diagnosis ,RESEARCH personnel ,UNIVERSITY research ,HIGH voltages ,ENGINEERING ,DIAGNOSIS methods - Abstract
Researchers at Huanggang Normal University in China have developed a novel multimodal attention fusion (MAF) model for fault diagnosis in modular multilevel converters (MMCs) used in high voltage direct current (HVDC) transmission projects. The MAF model combines time series and visual attention models to extract fault features from the internal circulating currents of the MMCs. The researchers found that the MAF model achieved fault diagnosis accuracies of 98.4% and 97.3% on two different datasets, outperforming existing methods. This research contributes to improving the security and reliability of MMCs in HVDC transmission systems. [Extracted from the article]
- Published
- 2023
8. Qingdao University of Technology Researcher Has Provided New Study Findings on Building Construction (The Application of Extended Reality Technology in Architectural Design Education: A Review).
- Subjects
ARCHITECTURAL education ,BUILDING design & construction ,ARCHITECTURAL design ,RESEARCH personnel ,TEACHER effectiveness - Abstract
A new study conducted by researchers at Qingdao University of Technology in China explores the use of extended reality (XR) technology in architectural education. The study examines the applications and outcomes of XR technology in construction education over the past five years and highlights its potential benefits and drawbacks. The research concludes that XR technology has a significant impact on teacher effectiveness, student motivation, reflection and improvement, and teacher-student communication. It suggests that XR technology may increasingly replace conventional teaching techniques in architectural classrooms. [Extracted from the article]
- Published
- 2023
9. Research on Tissue Engineering Detailed by Researchers at Affiliated Drum Tower Hospital of Nanjing University Medical School (Developing engineering technologies for the treatment of systemic lupus erythematosus).
- Subjects
TISSUE engineering ,RESEARCH personnel ,UNIVERSITY hospitals ,MEDICAL schools ,AUTOIMMUNE diseases ,SYSTEMIC lupus erythematosus ,ENGINEERING - Abstract
Researchers at the Affiliated Drum Tower Hospital of Nanjing University Medical School in China have conducted research on tissue engineering for the treatment of systemic lupus erythematosus (SLE), a complex autoimmune disease that affects multiple organs and tissues. The researchers highlight the need for novel treatments for SLE, as only a few new drugs have been approved for the disease since the 1950s. They discuss the potential of engineering technologies such as tissue engineering, organs-on-chips, and intelligent delivery systems, including engineered nanocarriers and cell-based therapies, in addressing the limited treatment options for SLE. The research aims to provide insights into the application and challenges of engineering technologies in SLE treatment. [Extracted from the article]
- Published
- 2023
10. New Engineering Study Findings Recently Were Published by Researchers at Yanshan University (Multi-Stage Information Spreading Model in Simplicial Complexes Driven by Spatiotemporal Evolution of Public Health Emergency).
- Subjects
RESEARCH personnel ,PUBLIC health ,ENGINEERING - Abstract
A recent study conducted by researchers at Yanshan University in China explores the impact of public health emergencies on the spread of information. The study focuses on the spatiotemporal evolution of public health emergencies and its effect on individuals' behaviors. The researchers analyze the dynamics of information spreading in simplicial complexes and find that the strength of interactions plays a significant role in expanding the impact and scale of information spread. The study also suggests that the worsening or improvement of public health emergencies in different regions can further enlarge the impact and scale of information spread. This research provides valuable insights into understanding the relationship between public health emergencies and information spreading. [Extracted from the article]
- Published
- 2023
11. Patent Application Titled "Polypeptide And Application Thereof In Bone Repair" Published Online (USPTO 20230357321).
- Subjects
PATENT applications ,PATENT offices ,INTERNET publishing ,TISSUE scaffolds ,TISSUE engineering - Abstract
A patent application titled "Polypeptide And Application Thereof In Bone Repair" has been published online by the US Patent and Trademark Office. The patent application, filed by inventors from Sichuan University in China, describes a polypeptide called GS18 that has been synthesized to promote bone repair. GS18 can be used in conjunction with tissue engineering scaffolds to treat various types of bone defects. The polypeptide has shown promising results in promoting osteogenesis and bone formation in pre-clinical studies. It is considered a low-cost and versatile therapeutic agent with potential clinical applications. [Extracted from the article]
- Published
- 2023
12. The little things matter: Chemists develop new sensor for microvolume pH detection.
- Subjects
SOIL pollution ,CHEMISTS ,DETECTORS ,RESEARCH personnel ,EARLY detection of cancer - Abstract
Scientists from Xi'an Jiaotong-Liverpool University in China have developed a new method for measuring pH in small volumes of samples. The current methods for measuring pH are not sensitive enough or too fragile for commercial use. The researchers have created a pH sensor using microfluidic channels and electrodes made of light-responsive layered materials and metals. This sensor can accurately detect minor variations in pH and has potential applications in various fields, including cancer detection and identifying contamination in soil. The team is currently seeking collaborations with industry developers to integrate the technology into lab equipment. [Extracted from the article]
- Published
- 2023
13. Study Findings from Dalian Minzu University Advance Knowledge in Electronics (BCAFL: A Blockchain-Based Framework for Asynchronous Federated Learning Protection).
- Subjects
ASYNCHRONOUS learning ,RESEARCH personnel ,COLLABORATIVE learning ,POISONING ,RESEARCH funding - Abstract
A study conducted by researchers at Dalian Minzu University in China has developed a blockchain-based framework called BCAFL for protecting asynchronous federated learning. The framework addresses the issue of low training efficiency in synchronous methods and incentivizes participation. It also introduces mechanisms to handle low-quality model providers and malicious party poisoning attacks, enhancing the reliability and efficiency of collaborative learning. In testing, BCAFL achieved an accuracy of approximately 90% in 20 rounds and reduced accuracy loss by 20% when subjected to data poisoning attacks. The research was funded by the Fundamental Research Funds For The Central Universities. [Extracted from the article]
- Published
- 2023
14. Crucial Development Technologies for Volcanic Hydrocarbon Reservoirs: Lessons Learned from Asian Operations.
- Author
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Liu, Songxia, Zhang, Yaoyuan, Wu, Qilin, Ayers, Walter B., Wang, Yanquan, and Ott, William K.
- Subjects
HORIZONTAL wells ,HYDROCARBON reservoirs ,GAS condensate reservoirs ,GAS reservoirs ,PETROLEUM reservoirs ,DRAG (Hydrodynamics) ,VOLCANIC ash, tuff, etc. ,HYDRAULIC fracturing - Abstract
Oil and gas reservoirs in volcanic rocks are a particular type of unconventional reservoir and present unique challenges for exploration and production engineers. To help the oil industry understand volcanic reservoirs and solutions to complex development problems, we reviewed their key engineering technologies as well as their geological characteristics. The distinctive geological characteristics of volcanic hydrocarbon reservoirs are strong heterogeneity, low porosity and permeability, complex fracture systems, etc. The volcanic reservoir rock types in order of hydrocarbon abundance are basalt (38.5%), andesite (15.9%), volcaniclastic (12.1%), and rhyolite (11.5%). The porosity ranges from 0.1 to 70%, and permeability ranges from 0.0007 to 762 md. In some commercially developed volcanic reservoirs of China, the average porosity is 7.7–13%; the average permeability is 0.41–3.4 md. Engineers have applied a variety of adapted technologies to produce volcanic reservoir economically. Horizontal wells can increase production and reserves by 4–6 times those of vertical wells, and longer wells are preferred. Specialized hydraulic fracturing techniques are suggested, including small or mixed proppant size, second HF treatment after proppant slugging, high-viscosity frac fluid with high-temperature resistance, special fluid loss reducer, high pump pressure, Extreme Overbalance Perforating, limited-entry fracturing, matrix acidizing, etc. Water control measures include producing below critical rates, partial perforation or penetration, controlling hydraulic fracture height, using horizontal wells, implementing complete cementing job, etc. Well productivity evaluation should be conducted to understand well performance and appropriately allocate production rates among wells, using the modified AOF method and other productivity prediction models considering breakdown fracture gradient, gas slippage effect, non-Darcy effect, etc. Well sites need to be selected based on recognizing profitable lithologies, lithofacies, high porosity and permeability, relatively developed fracture systems, thick net pay zones, etc. The critical questions for the industry are how to enhance volcanic reservoir recovery with more efficient and economic hydraulic fracturing and water control techniques. This is one of the first papers systematically summarizing the engineering technologies and unique solutions to develop volcanic reservoirs. Further and more complete reviews can be carried out in the future, and more novel and effective techniques can be explored and tested in the field. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
15. Research on Suitability Evaluation of Urban Engineering Construction Based on Entropy Weight Hierarchy-Cloud Model: A Case Study in Xiongan New Area, China.
- Author
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Gao, Yi-Hang, Han, Bo, Miao, Jin-Jie, Jin, Shuang, and Liu, Hong-Wei
- Subjects
ENTROPY ,RESEARCH evaluation ,URBAN planning ,URBAN growth ,ENGINEERING ,CONSTRUCTION projects - Abstract
The development of Xiongan New Area in Hebei Province, China, as a significant national choice, has considerable strategic significance for the integrated growth of Beijing, Tianjin, and Hebei. This paper proposes a cloud model for the suitability evaluation of the construction of Xiongan New Area based on entropy weight analysis, taking into account the geological conditions, groundwater environment, environmental geological problems, and other factors of the suitability of image city development. According to the research, the suitability evaluation findings for the project building employing the cloud model are in strong accord with those of the traditional model and have some application potential. The evaluation's findings indicate that the project construction in Xiongan New Area is acceptable, with suitable and relatively suitable sites making up 81.4% of the total area and excellent circumstances for project development, construction, and usage. This study offers helpful direction for Xiongan New Area's urban land-space design and serves as a useful point of comparison for studies looking at the viability of other deep Quaternary Plain region engineering buildings. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
16. Owner-based benefit evaluation of BIM applications in China's engineering projects.
- Author
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Li, Xiaojuan, Zhang, Zhou, Jim, C.Y., Lai, Jiyu, and Chen, Xueqing
- Subjects
BUILDING information modeling ,LITERATURE reviews ,SHOPPING centers ,ENGINEERING ,CONSTRUCTION industry - Abstract
Purpose: This paper aims to establish a model to evaluate the benefits of building information modeling (BIM) from the owners' perspective. The model analyzes the correlation between five secondary benefit indicators and their subsystems: product, financial, organizational, management and strategic. The final key factors of BIM benefits provide a decision-making basis for owners to raise the efficiency of BIM application. Design/methodology/approach: Firstly, the authors combed 31 BIM-related literature and interviewed experts to identify 15 preliminary benefit indicators. The authors established a BIM benefit evaluation system based on relevant concepts, including two primary indicators, five secondary indicators and 15 tertiary indicators. Secondly, the authors analyzed the indicators by the extension theory of matter element analysis and a questionnaire survey of expert opinion. Finally, the new method was applied to a case study of a large shopping center in east China for empirical verification. Findings: A BIM benefit evaluation model, including a three-tiered hierarchy of primary, secondary and tertiary indicators, was constructed through literature review and expert opinions. The model determined the critical factors of BIM benefits, enhanced understanding of owner benefits and improved BIM application under the owners' leadership. Originality/value: At present, most studies focus on specific project stages or benefit indicators. This study developed an integrated BIM benefit evaluation system that targets owners. The findings could foster the development of China's construction industry, promote owner-led BIM application and advocate adopting the benefit evaluation method. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
17. Teaching system transformation of logistics engineering major from the perspective of smart economy: an empirical study from China.
- Author
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He, Yang, Liu, Weihua, Shi, Xiaoran, and Gao, Peiyuan
- Subjects
COLLEGE majors ,EMPIRICAL research ,CHINA studies ,ENGINEERING ,LOGISTICS ,STUDENT participation - Abstract
The technology and service modes of logistics industry are changing greatly in smart economy, and innovation is becoming new development engine, which promotes the urgent transformation requirement of teaching system of logistics engineering majors in universities. Based on the data from logistics engineering majors in Chinese universities in 2021, a relevant study on the undergraduate logistics engineering major is carried out. Along with 'ability-motivation-opportunity' (AMO) theory, this paper analyses the influence of ability, motivation and opportunity on the transformation. The current situation of teaching system, the existing problems and the improvement measures are investigated. Based on the above analysis, this paper puts forward the relevant suggestions to promote the cultivation of innovative talents, mainly including planning and designing the training programme system for logistics engineering major, placing more emphasis on logistics practice courses, promoting undergraduate students' participation in various logistics contests, and increasing the level of teaching investment and guarantee. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
18. Overall Design of Xingguo Test Line of Suspended Permanent Maglev Monorail Transportation System.
- Author
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LI Xiaofei and LI Jisheng
- Subjects
MAGNETIC levitation vehicles ,SYSTEMS engineering ,TEST design ,TRANSPORTATION engineering ,MANUFACTURING processes ,ENGINEERING ,INTELLIGENT transportation systems - Abstract
In order to promote the development and application process of suspended permanent maglev monorail transportation system, China has built suspended permanent maglev monorail transportation system engineering test line, Xingguo engineering test line, and the line has made useful explorations on many key technologies in the engineering process of the system. The key technical contents such as the overall layout of the test line, the suspension guidance and drive system, track beam and turnout, manufacturing process, which are different compared to the permanent maglev monorail transit and the conventional rubber wheel suspended monorail transit, are studied emphatically in this paper. The research shows that, under the premise of meeting the basic requirements of the test line, the reasonable overall layout reduces the land and engineering investment at the greatest extent. The innovative design of core systems, such as permanent maglev, realizes the stable suspension guidance and drive of the test line vehicles, and the design of key systems such as track beam bridge, turnout and processes lays the foundation for the safe operation of the test line. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
19. Global sensitivity analysis of parameters based on sPCE: The case study of a concrete face rockfill dam in northwest China.
- Author
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Ran L, Yang J, Ma C, Cheng L, and Zhou M
- Subjects
- China, Models, Statistical, Sample Size, Advance Directives, Engineering
- Abstract
To effectively identify the key material parameters of different zones of concrete face rockfill dams and improve the efficiency of parameter optimization, a global sensitivity analysis method of parameters based on sparse polynomial chaotic expansion (sPCE) is proposed in this paper. The latin hypercube sampling method is used to select multiple groups of material parameters, and then finite element method is used to calculate the displacement of dam characteristic nodes in dam body. On this basis, the displacement is expanded by sPCE, and the polynomial basis function is reconstructed by orthogonal matching pursuit to improve the construction and analysis efficiency of the proxy model. According to the chaos coefficients, Sobol' indices are calculated to evaluate the influence of the material parameters and their interaction on different displacements of the dam. The results show that the sPCE model can accurately simulate dam displacement and its statistical characteristics with a relatively small sample size. The sensitivity of the same parameter has spatial variability, and under the influence of parameter levels and spatial distribution of different materials, the parameter sensitivity ranking of different zones has certain differences. The proposed method provides a new reference to sensitivity analysis and uncertainty analysis for practical engineering., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2023 Ran et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2023
- Full Text
- View/download PDF
20. Microseismic Monitoring Technology Developments and Prospects in CCUS Injection Engineering.
- Author
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Meng, Lingbin, Zheng, Jing, Yang, Ruizhao, Peng, Suping, Sun, Yuan, Xie, Jingyu, and Li, Dewei
- Subjects
- *
OPTICAL disks , *RESEARCH & development projects , *GREENHOUSE gas mitigation , *ENGINEERING - Abstract
CO2 geological storage projects are an essential tool for China to achieve the double carbon target of energy savings and emission reductions. In order to safely and effectively control the implementation of injection projects and monitor the dynamics of CO2 injection, multi-dimensional and multi-disciplinary monitoring tools are required. Among them, microseismic monitoring is a key technology for predicting reservoir dynamics and reflecting reservoir geomechanical behavior. Such monitoring has been carried out previously for reservoirs in other countries, but experimental projects are also gradually being developed in China. In this paper, we focus on the research and analysis results of microseismic monitoring of carbon storage projects in various work areas. For different reservoir conditions, we explore combinations of the monitoring implementation methods in China, comparing the differences in each work area. We propose a joint well and ground microseismic monitoring method and a multi-spatial and multi-physical field coupling research system for use in the implementation of domestic demo projects for the future research and development of microseismic monitoring of carbon storage projects. The monitoring program can meet the requirements for certain periodic repeated or continuous observations and can intelligently assess the risk and handle the alert behavior. The foundation is laid for the development of the future microseismic monitoring technology to achieve the goal of developing cost-controllable, permanent, and real-time monitoring equipment. The application of the monitoring system in China has been effective, and this experience can contribute to the development of injection engineering in the future. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
21. New Mathematical Biosciences and Engineering Study Findings Have Been Reported by Researchers at North University of China (A region-adaptive non-local denoising algorithm for low-dose computed tomography images).
- Subjects
COMPUTED tomography ,LIFE sciences ,ENGINEERING ,IMAGE denoising ,ALGORITHMS - Abstract
Keywords: Algorithms; Computed Tomography; Imaging Technology; Life Sciences; Mathematical Biosciences and Engineering; Technology EN Algorithms Computed Tomography Imaging Technology Life Sciences Mathematical Biosciences and Engineering Technology 2023 FEB 18 (NewsRx) -- By a News Reporter-Staff News Editor at Medical Imaging Week -- New research on mathematical biosciences and engineering is the subject of a new report. Algorithms, Computed Tomography, Imaging Technology, Life Sciences, Mathematical Biosciences and Engineering, Technology. [Extracted from the article]
- Published
- 2023
22. Using medical knowledge graphs in smart applications for clinical diagnoses and more.
- Subjects
KNOWLEDGE graphs ,CLINICAL medicine ,DIAGNOSIS ,ELECTRONIC health records ,INFORMATION technology - Published
- 2023
23. Perimeter description of research publications on drones by prolific engineering writers.
- Author
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Suryani, I., Basir, N., Norkhairi, A., Halim, M. Z. A., and Zubir, F.
- Subjects
- *
BIBLIOMETRICS , *CONFERENCE papers , *ENGINEERING , *ACADEMIC discourse , *AUTHORS - Abstract
Teaching technical writing to engineering researchers particularly post graduate students is a demanding and complex task. Often the challenge faced by the language instructor is in having inadequate understanding on students' expected writing output which is engineering research publication. While the language instructors may find the language use aspect manageable, it is the understanding on expected writing output for engineering discipline that is a challenge; therefore, supporting language module developers to understand those expected outputs is essential and needed for the advancement in language teaching. In view on the need for the description of the targeted output which is engineering publication, this study focuses on supporting the understanding of engineering research publication specifically on drones. This study is aimed to describe the perimeter of research publication on drones written by prolific engineering writers. This paper uses bibliometric analysis method which is based on identifying the core research and authors, as well as the works that cited them. This study examines 275 research publications indexed in SCOPUS database and also investigates 1947 research publications that cited the 275 publications as reference source. The findings show that the publications are mostly articles, conference papers and reviews deriving mostly from the US, China and the UK whereas the citing documents are mostly from China, the UK and the US. This paper presents the description on the perimeter for both groups. Such description provides a ready narrative to language instructors as well as ready narratives and guidance on writing/content dimension for young scholars embarking on writing scholarly articles on drone research. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
24. 政府投资工程项目 IDI 运作模式设计.
- Author
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黄 旭 and 吴龙梁
- Subjects
QUALITY of service ,TOTAL quality management ,PUBLIC administration ,INSURANCE ,ENGINEERING ,USER-generated content - Abstract
Copyright of Journal of Engineering Management / Gongcheng Guanli Xuebao is the property of Journal of Engineering Management Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
25. Surface Modification of Steel Slag Aggregate for Engineering Application in Asphalt Mixture.
- Author
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Niu, Dongyu, Zhang, Zhao, Meng, Jiandang, Yang, Zhengxian, Jing, Ruxin, Liu, Xueyan, Lin, Peng, and Sheng, Yanping
- Subjects
SLAG ,STEEL ,ENGINEERING ,CONTACT angle ,MIXTURES ,BITUMINOUS materials ,ASPHALT ,DENTAL adhesives - Abstract
The proper disposal of steel slag has always been a great challenge for the metallurgical industry in China and around the world. In this work, the steel slag aggregate (SSA) was surface pretreated (PSSA) and applied into asphalt mixture. The adhesive behavior between the bitumen and five different types of aggregates (i.e., limestone, diorite, diabase, SSA, PSSA) were evaluated based on the contact angle and binder bond strength tests. The pavement performance of three asphalt mixtures which contain normal aggregate, SSA and PSSA respectively, was analyzed by Marshall stability test, wheel-tracking rutting test, low-temperature bending creep test and water sensitivity test. The results showed that surface modification can improve the surface properties of SSA, reduce its contact angle with bitumen, and eventually lead to the improvement of adhesion between them. In addition to the satisfied low-temperature properties, PSSA was found to significantly improve the anti-rutting property and reduce the water sensitivity of asphalt mixture. This work is expected to promote an alternative application for recycling of SSA in pavement engineering. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
26. Navigating and negotiating global science: tensions in China's national science system.
- Author
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Wen, Wen, Zhou, Lu, and Hu, Die
- Subjects
HIGHER education ,SCHOLARLY publishing ,ENGINEERING ,THEORY of knowledge - Abstract
This study aimed to understand the tensions in China's national science system as China is becoming a central player in global knowledge production. Publishing patterns and international co-authorship patterns of Chinese universities were utilized to analyse the dynamics and tensions in the national science system. Findings show that China's scientific publishing and collaboration behaviours are embedded in the 'centre-periphery' framework of the global science system, which stimulates conflicts between the rapid growth of English publishing and the need of developing China's local indigenous research. The Chinese national science system is increasingly stratified as it moves from the 'periphery' towards the 'centre' of the global science system. Its integration into the global science system is reliant upon a handful of top research universities and disciplines in the natural sciences and engineering. A tension lies between the universal and open nature of science and the hierarchical global science network. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
27. Uranium releasing behavior from a uranium waste rock heap in southern China: indication from sink.
- Author
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Feng, Zhigang, Li, Peishan, Ma, Qiang, Zhang, Bin, and Huang, Chong
- Subjects
METALLURGY ,URANIUM mining ,URANIUM ,POLLUTION ,WATER treatment plant residuals ,SOILS ,ENGINEERING - Abstract
The waste rock heap is a kind of potential uranium (U) pollution source in U mining and metallurgy areas. In this study, we discussed the distribution characteristics of U in the soil (sludge) around a waste rock heap of a granite-type U mine in southern China, and the aim was to indicate U releasing behavior from the pollution source from the perspective of the sink. This work proves that U carried by colloidal solution can be transported for a longer distance. Thus, in the follow-up regulation engineering for U waste rock heap to inhibit U from entering the environment, it should be concerned on not only the diffusion of U in the form of debris, but especially the migration of U as colloidal solution. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
28. 《高速铁路设计规范》等标准信号部分局部修订解析.
- Author
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闫宏伟, 沈志凌, 吴歆彦, and 赵泽宇
- Subjects
ELECTRIC multiple units ,SYSTEMS design ,AUTOMOBILE parking ,RAILROADS ,SIGNALS & signaling ,DESIGNERS ,ENGINEERING standards ,ENGINEERING ,RAILROAD design & construction - Abstract
Copyright of Railway Standard Design is the property of Railway Standard Design Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
- View/download PDF
29. Rheological Characterization and Accumulation Tests for Strong Thixotropic Engineering Slurry.
- Author
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Yuan, Kekuo, Lu, Yating, Li, Wanlu, Yu, Hongdan, and Gao, Shan
- Subjects
MORTAR ,SLURRY ,CEMENT slurry ,YIELD stress ,ENGINEERING ,LOGARITHMIC functions ,RHEOLOGY - Abstract
Underground void subsidence hazards, especially mine goaf, have now become one of the major social problems affecting the well-being of civilians and development in China. The objective of this study was to propose a kind of strong thixotropic engineering slurry and filling treatment for use in underground void subsidence hazards. The optimal agent ratio for thixotropic cement slurry/mortar was obtained by indoor tests, where the rheological agent is 7.5% compared to the weight of cement, the water–solid ratio is in the range of 0.7~0.8, and the aeolian sand ratio can be 0~1.5 times that of cement. The rheological properties of slurry and mortar were tested using a Brookfield RST-SST rheometer. The results show that aeolian sand can be used as thixotropic cement mortar for a backfilling treatment for underground voids (mine goaf). The static yield stress increases non-linearly compared to existing thixotropic models. The stress decays sharply with shearing (the shear rate is more or less 10 s
−1 ) and then the stress increases with the increase in shear rate (the shear rate is more than 10 s−1 ). The increase in the stress of the slurry is greater than in the mortar. A natural logarithmic function between yield stress and rest time (only 1 parameter), an exponential function with two parts for stress–shear rate (a rheology model, with only 3 parameters), and an exponential function for the accumulation law (only 2 parameters) were proposed in turn. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF
30. Special Issue on the 2020 International Conference on Automation Science and Engineering.
- Author
-
Dotoli, Mariagrazia, Shen, Weiming, Jia, Samuel Qing-Shan, and Zhong, Ray Y.
- Subjects
SCIENCE conferences ,CONFERENCES & conventions ,ROBOTICS conferences ,ENGINEERING ,INTERDISCIPLINARY research - Abstract
We are pleased to present this Special Issue of TASE, including 12 extended articles selected from the technical program of the 2020 International Conference on Automation Science and Engineering (CASE2020). CASE2020 was held virtually due to the COVID19 pandemics, August 20–21, 2020, and was originally scheduled in Hong Kong, China. CASE is an offspring of TASE and is the flagship automation conference of the IEEE Robotics and Automation Society, constituting the primary forum for cross-industry and multidisciplinary research in automation. The 2020 CASE theme was Automation Analytics, a global challenge emphasized at the conference by several invited and regular sessions, as well as specific workshops. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
31. Investigation on long-term progressive deformation of engineering slope based on comprehensive monitoring.
- Author
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Zhang, Shi-shu, Guo, Song-feng, Qi, Sheng-wen, Tang, Feng-jiao, Hu, Jin-shan, Zhao, Xiao-ping, Ran, Cong-yan, Wang, Xin, Zou, Yu, Huang, Xiao-lin, Zheng, Bo-wen, and Liang, Ning
- Subjects
RAINWATER ,ERGONOMICS ,SURFACE of the earth ,ENGINEERING ,INCLINOMETER ,WATER power - Abstract
A landslide always results from a progressive process of slope deformation. In recent years, an increasing number of slope instabilities have occurred with regard to human engineering activities such as hydropower or traffic construction in mountainous area, which cause even greater casualties and economic loss compared with the natural hazards. The development of such earth surface process may hold long period with mechanisms still not fully understood. Using monitoring technology is an effective and intuitive approach to assist analyzing the slope deformation process and their driving factors. This study presents an engineering slope excavated during the construction of Changheba Hydropower Station, which is located in the upper reaches of Dadu River, Sichuan Province, southwest China. The engineering slope experienced and featured a five-year continuous deformation which caused continuous high risks to the engineering activities. We conducted in-depth analysis for such a long-term deformation process based on ground and subsurface monitoring data, collected successive data with a series of monitoring equipment such as automated total station, borehole inclinometers and other auxiliary apparatus, and identified the deformation process based on the comprehensive analysis of monitoring data as well as field investigation. After analyzing the effects of engineering activities and natural factors on the continuous deformation, we found that the overburden strata provided deformable mass while the excavation-produced steep terrain initiated the slope deformation in limit equilibrium state over a long period of time; afterwards, the intense rainwater accelerated slope deformation in the rainy season. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
32. 高原铁路大跨桥梁轨道结构选型研究.
- Author
-
伍卫凡
- Subjects
LONG-span bridges ,COLD regions ,RAILROAD bridges ,RAILROADS ,GEOMETRY ,ENGINEERING ,PLATEAUS - Abstract
Copyright of Railway Standard Design is the property of Railway Standard Design Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
- View/download PDF
33. Systematic Thinking and Evaluation of Construction Quality Management Standardization of Power Engineering in China.
- Author
-
Yuan, Tai-Ping, Ou, Jing-Feng, Wang, Juan, and Zhang, Wei
- Subjects
CONSTRUCTION management ,TOTAL quality management ,ENGINEERING management ,INDUSTRIAL engineering ,ENGINEERING - Abstract
Power engineering is complex, involving many participants, numerous management factors, and different stages. To improve the quality management level of power engineering and realize the standardization of power engineering quality management, power engineering construction quality management standardization (CQMS) is evaluated using the order relation analysis method (G1 method) and the cloud model method. Firstly, based on systematic thinking and practice in China, the CQMS framework is proposed, and the evaluation index system including organizational performance, management behaviour performance, and entity performance related to power engineering construction quality is established. Subsequently, the G1 method is used to determine the weight of each index, and the cloud model method is used to implement the evaluation process. The results are divided into five grades, representing the five grades of construction quality management. Finally, taking a practical multiterminal DC demonstration project in China as an example, the CQMS performance is described and evaluated. The evaluation results directly reflect the level and difference of CQMS and show that this evaluation method can provide a reference for CQMS in power engineering. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
34. 北京地铁车站浅埋暗挖法建造技术发展综述.
- Author
-
杨秀敏, 张顶立, and 房 倩
- Subjects
SUBWAY stations ,SUBWAYS ,SUSTAINABLE development ,TUNNEL design & construction ,ENGINEERING ,GROUND penetrating radar - Abstract
Copyright of Railway Standard Design is the property of Railway Standard Design Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
- View/download PDF
35. The Application of Adaptive Analytic Hierarchy Process Driven by Multisource Big Data in the Training of School-Enterprise Joint Engineering Ability.
- Author
-
Zhang, Liqing
- Subjects
ANALYTIC hierarchy process ,ANALYTIC network process ,ENGINEERING education ,BIG data ,MARKETING management ,ENGINEERING ,ENGINEERS - Abstract
The Chinese government has pointed out in relevant literature that by 2020, China is in short supply of high-level innovative technology talents, and China's engineering education will face unprecedented challenges. Based on the needs of China's future economic development, the Ministry of Education urgently launched the "Excellent Engineer Education and Training Program" in 2010, which aims to cultivate a large number of solid theoretical foundations, strong practical skills, and high innovation capabilities for the industry, the world, and the future. An outstanding engineer is the one who can quickly adapt to the needs of economic and social development. The program is divided into three levels of undergraduate, master, and doctoral training. The undergraduate level focuses on training in a series of high-quality applications capable of not only being competent in the management and marketing of the production site but also in the design, development, and operation of engineering projects. Talent: to achieve this training goal, the in-depth cooperation between schools and enterprises has become the key. In order to achieve the undergraduate-level training goals of the "Excellence Program," various local colleges and universities have adopted the method of school-enterprise cooperation, combined with their own school positioning, trying to explore a training path suitable for their own development. This research takes China's local application-oriented universities as the research object and uses the literature method to sort out and summarize the status quo of the school-enterprise cooperation in training outstanding engineers in China's local application-oriented universities. Select two different application-oriented universities located in areas with large economic development gaps, analyze their common problems, and try to put forward countermeasures and suggestions. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
36. Engineering geological and petrological characterization of paleoweathered rock in the K1/J2 contact zone in the Ordos Basin, China.
- Author
-
Zhu, Tingen, Li, Wenping, Wang, Qiqing, and Hu, Yanbo
- Subjects
CLAY minerals ,SULFIDE minerals ,OXIDE minerals ,WEATHERING ,LONGITUDINAL waves ,ENGINEERING ,AXIAL loads ,QUARTZ - Abstract
Various geological processes (mineral composition, structure, tectonics, weathering, etc.) affect the physical–mechanical properties of rock. Petrological and engineering geological characteristics of paleoweathered rock (PWR) from the K
1 /J2 contact zone are described in detail via field investigation and experimental testing. This PWR exhibits mainly sandy grains and mud structures, layered and massive strata, and calcareous and argillaceous cements; fissures are developed and often filled with argillaceous and detrital materials; nine minerals and seven oxides are present, and quartz is present in each sample. Long-term weathering results in a consistent bulk density and high total porosity due to the transformation of primary minerals into secondary clay minerals, forming PWR that undergoes argillization in water. The axial point load strength (PLS) is the largest among the tested PLSs, followed by the diametral PLS, and the irregular PLS. The uniaxial compressive strength (UCS) varies widely, but the results are reliable. The mineralogical, physical and mechanical properties of the PWR are compared to predict one parameter from another and study their mutual influence. The PLS and UCS of the PWR are negatively correlated with the elastic mineral group (EMG) content, weathering alteration indexes, water content, and total porosity and positively correlated with the quartz content, brittle mineral group (BMG) content, bulk density, real density, and longitudinal wave velocity. The UCS and the PLS, axial (diametral) PLS and irregular PLS are positively correlated. These results provide a theoretical basis for physical and mechanical property prediction of PWR masses and rapid estimation of UCS in engineering. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF
37. 隧道超深竖井设计施工技术研究现状及展望.
- Author
-
赵东平 , 吴 楠, 李 华, and 涂怀宇
- Subjects
ROCK music ,SET theory ,CONSTRUCTION equipment ,EMPIRICAL research ,ENGINEERING - Abstract
Copyright of Railway Investigation & Surveying is the property of Railway Investigation & Surveying Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
- Full Text
- View/download PDF
38. Using Environment Based Design Method to Improve Mechanical Curriculum Teaching
- Author
-
Meng, Jie, He, Gaofa, Li, Xiang, Ren, Liancheng, Dong, Chaoqun, and Liu, Min
- Abstract
This paper regards the mechanical curriculum teaching as a design problem and uses environment-based design (EBD) method to solve it. First, environment components and their relations of the mechanical curriculum are found out by recursive object model (ROM). Then, conflicts in the teaching process are identified by analysing the above relations. Finally, solutions for solving these conflicts are generated. The proposed method is applied to mechanical manufacturing technology foundation (MMTF) curriculum with 217 students in grade 2016 in China. The solutions used in MMTF include decreasing the mental stress of students, developing more experimental projects, applying real cases and projects, adopting variety of assessments and so on. Compared with the performance of students in grade 2015, the average attendance rate and final scores are both increased, and three of the four achievement values of graduation attributes are risen. The practical example illustrates the EBD method is effective in improving curriculum teaching.
- Published
- 2022
- Full Text
- View/download PDF
39. The Recent Progress China Has Made in the Backfill Mining Method, Part III: Practical Engineering Problems in Stope and Goaf Backfill.
- Author
-
Yu, Haoxuan, Li, Shuai, and Wang, Xinmin
- Subjects
MINING methodology ,ENGINEERING ,MINING engineering ,MINERAL industries ,ARTIFICIAL intelligence - Abstract
With the continuous innovation and development of science and technology, the mining industry has also benefited greatly and improved over time, especially in the field of backfill mining. Mining researchers are increasingly working on cutting-edge technologies, such as applying artificial intelligence to mining production. However, in addition, some problems in the actual engineering are worth people's attention, and especially in China, such a big mining country, the actual engineering faces many problems. In recent years, Chinese mining researchers have conducted a lot of studies on practical engineering problems in the stope and goaf of backfill mining method in China, among which the three most important points are (1) Calculation problems of backfill slurry transportation; (2) Reliability analysis of backfill pipeline system; (3) Stope backfill process and technology. Therefore, this final part (Part III) will launch the research progress of China's practical engineering problems from the above two points. Finally, we claim that Part III serves just as a guide to starting a conversation, and hope that many more experts and scholars will be interested and engage in the research of this field. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
40. Comprehensive Evaluation of BIM Calculation Quantity in Domestic Construction Engineering Based on Fuzzy Comprehensive Evaluation.
- Author
-
Deng, Yi, Rao, Ziyuan, and Cai, Ling
- Subjects
- *
STRUCTURAL engineering , *INFORMATION technology management , *SYSTEMS engineering , *PRODUCTION engineering , *ENGINEERING - Abstract
Nowadays, with the leap-forward development of computer technology and the transformation of information technology management concepts, China's construction industry is quietly entering the era of refined management. Accurate estimation and cost control have become among the key considerations of the construction industry. For the calculation of engineering quantity, there are already many software devices that can be used for the calculation of engineering structure quantity, which means that the incorrect operation of personnel has been reduced to some extent, improving the work efficiency and measurement accuracy. The purpose of this paper is to solve the problems of computational missing, computational errors, inefficiency, data loss, and repetitive system in traditional computing based on the advantages of BIM computing system, which provide a reliable basis for cost forecasting and control. At the same time, using BMI calculation system to solve the problem of steel reinforcement in construction engineering, as well as the use of personnel, the existing calculation software still needs a lot of time and energy. We proposed a comprehensive evaluation study of reinforcement calculation in domestic construction engineering BIM calculation system based on a fuzzy comprehensive evaluation. This paper first summarizes the BIM calculation system of construction engineering, uses fuzzy comprehensive evaluation system as an important evaluation index system in domestic construction engineering BIM calculation system, through the judgment of various factors affecting the actual effect of the calculation system, and uses the fuzzy evaluation system combined with a case to demonstrate the superiority of the proposed research. Therefore, through the above research and experiments, it is concluded that the research method of this paper solves many problems in the process of engineering structure reinforcement calculation and provides a good reference method for the establishment of comprehensive evaluation system of reinforcement calculation, as well as providing an effective validation for the widespread use of BIM technology in the construction industry. Finally, it is also beneficial for users to comprehensively evaluate the BIM calculation system of the construction industry and provide a basic reference condition for different industries to use and choose BIM calculation systems. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
41. Social Stability Risk Diffusion of Large Complex Engineering Projects Based on an Improved SIR Model: A Simulation Research on Complex Networks.
- Author
-
Zhengqi He, Dechun Huang, and Junmin Fang
- Subjects
SOCIAL stability ,SOCIAL influence ,SOCIAL networks ,INTERPERSONAL relations ,ENGINEERING - Abstract
The development of China's new urbanization has driven the rapid increase in large complex engineering projects, which have the characteristics of large-scale investment, long-term construction, and wide social influence, easily causing benefit conflicts among relevant stakeholders, and breaking out social stability risks. In the previous research, the risks of large complex engineering projects mainly concentrated on the assessment of economic risk, schedule risk, etc. However, there were few studies on social risks, and they did not consider how the risks spread on the complex networks based on the social connections such as interpersonal relationship. From the subject of social stability risk diffusion of large complex engineering projects, this paper constructs a related risk diffusion model based on the SIR model to analyze risk diffusion mechanism. through Net Logo simulation platform, the model is placed under a small-world network environment that is closest to the topology structure of real social interpersonal relationship network for simulation research, aiming to find out key factors of social stability risk intervention for large complex engineering projects, which greatly contributes to the social stability risk management of large complex engineering projects. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
42. New criterion for the spalling failure of deep rock engineering based on energy release.
- Author
-
Xiao, Peng, Li, Diyuan, Zhao, Guoyan, and Liu, Huanxin
- Subjects
- *
ROCK bursts , *STRAIN energy , *GOLD mining , *MINING methodology , *ENGINEERING , *ENGINEERING standards , *MINE accidents - Abstract
Ground pressure hazards in deep rock engineering, such as rock spalling and rock burst, are big challenges and threats to personnel and equipment safety. In order to investigate the mechanism of ground pressure disasters in deep rock engineering, in-situ investigations were carried out in a deep gold mine in China. The survey results show that with the increase of the mining depth, the number and severity of ground pressure disaster events increase significantly. The investigation results of ground pressure disaster in the gold mine are analyzed by three methods. The effects of the maximum tangential stress, strain rebound and strain energy release on the failure of surrounding rock under different burial depths are obtained. The failure behaviors of surrounding rock are well explained by these methods at different mining depths. The new method considering strain energy release can well explain the phenomenon of core disking and it can accurately calculate the theoretical thickness of core disk. In addition, a theoretical calculation basis for the support design of energy absorbing bolt is provided in the paper and the support design figure is put forward by considering energy absorbing bolt. • According to in-site investigations, ground pressure hazard events increased significantly with depth. • Strain energy released by surrounding rock increases rapidly with a function of second power of mining depth. • Phenomenon of core disking is well explained, and calculation formula of rock disk thickness is provided. • The energy-absorbing materials such as energy-absorbing bolts can well absorb the released strain energy. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
43. Unspoken Modernity: Bamboo-Reinforced Concrete, China 1901-40.
- Author
-
Chang-Xue Shu
- Subjects
REINFORCED concrete construction ,BAMBOO construction ,INDUSTRIALIZATION ,MODERN architecture - Published
- 2021
- Full Text
- View/download PDF
44. A Practical Method for the Automatic Recognition of Rock Structures in Panoramic Borehole Image during Deep-Hole Drilling Engineering.
- Author
-
Zou, Xianjian, Wang, Chuanying, Zhang, Huajun, and Chen, Shuangyuan
- Subjects
IMAGE analysis ,IMAGING systems ,BOREHOLES ,CHARACTERISTIC functions ,DRILLS (Practice) ,ENGINEERING ,DRILLING & boring - Abstract
Featured Application: The obtained kinds of borehole camera images of long or deep holes in the tunnels of the building Sichuan-Tibet Railway. Digital panoramic borehole imaging technology has been widely used in the practice of drilling engineering. Based on many high-definition panoramic borehole images obtained by the borehole imaging system, this paper puts forward an automatic recognition method based on clustering and characteristic functions to perform intelligent analysis and automatic interpretation researches, and successfully applied to the analysis of the borehole images obtained at the Wudongde Hydropower Station in the south-west of China. The results show that the automatic recognition method can fully and quickly automatically identify most of the important structural planes and their position, dip, dip angle and gap width and other characteristic parameter information in the entire borehole image. The recognition rate of the main structural plane is about 90%. The accuracy rate is about 85%, the total time cost is about 3 h, and the accuracy deviation is less than 4% among the 12 boreholes with a depth of about 50 m. The application of automatic recognition technology to the panoramic borehole image can greatly improve work efficiency, reduce the time cost, and avoid the interference caused by humans, making it possible to automatically recognize the structural plane parameters of the full-hole image. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
45. 国际工程投标阶段风险管控实践.
- Author
-
唐元文 and 朱海龙
- Subjects
ENGINEERING contracts ,BIDS ,LOSS control ,BUSINESS enterprises ,ENGINEERING - Abstract
Copyright of China Harbour Engineering is the property of Editorial Office of China Harbour Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
- Full Text
- View/download PDF
46. Sinology with Engineering Characteristics: Commentary on Jue Hou's "The Cybernetic Writing Pad".
- Author
-
Mitcham, Carl
- Subjects
CHINA studies ,CYBERNETICS ,COMPUTER engineers ,COMPARATIVE linguistics ,ENGINEERING - Abstract
Jue Hou's study of interactions between computer engineers and Chinese script reformers in the 1970s enriches growing STS and China studies interest in Chinese engineering. It can also make a distinctive sinological contribution to contemporary efforts to develop the field of comparative philology. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
47. Design of Distance Teaching Platform for Network English Course of Communication Engineering Specialty.
- Author
-
Xue, Yi and Meng, Di
- Subjects
- *
ENGLISH teachers , *ENGINEERING teachers , *ENGINEERING , *DISTANCE education , *ACTIVE learning - Abstract
In recent years, distance education based on network environment has made great progress in China. The combination of network technology and teaching activities has brought new enlightenment to the education field. Under this background, this paper designs the distance teaching platform of network English course for communication engineering specialty, optimizes the design function of network English course platform, analyzes the common forms of the network English Course Teaching of communication engineering specialty and the new requirements of new forms for Distance English teachers, and probes into how to improve the teaching water of network English course teachers of communication engineering specialty In order to promote the further development and popularization of Distance English education. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
48. 世界交通沉管隧道工程建造情况与 我国沉管科技发展现状.
- Author
-
刘凌锋, 林巍, 尹海卿, 刘亚平, 邹威, 许思妍, and 纪宇诺
- Subjects
WATER depth ,TUNNELS ,TUBES ,ENGINEERING ,PATENTS ,SPEED - Abstract
Copyright of China Harbour Engineering is the property of Editorial Office of China Harbour Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2021
- Full Text
- View/download PDF
49. Skill levels and gains in university STEM education in China, India, Russia and the United States.
- Author
-
Loyalka P, Liu OL, Li G, Kardanova E, Chirikov I, Hu S, Yu N, Ma L, Guo F, Beteille T, Tognatta N, Gu L, Ling G, Federiakin D, Wang H, Khanna S, Bhuradia A, Shi Z, and Li Y
- Subjects
- Adolescent, China, Female, Humans, India, Male, Mathematics education, Russia, Students, United States, Young Adult, Academic Performance, Engineering education, Science education, Technology education, Thinking, Universities
- Abstract
Universities contribute to economic growth and national competitiveness by equipping students with higher-order thinking and academic skills. Despite large investments in university science, technology, engineering and mathematics (STEM) education, little is known about how the skills of STEM undergraduates compare across countries and by institutional selectivity. Here, we provide direct evidence on these issues by collecting and analysing longitudinal data on tens of thousands of computer science and electrical engineering students in China, India, Russia and the United States. We find stark differences in skill levels and gains among countries and by institutional selectivity. Compared with the United States, students in China, India and Russia do not gain critical thinking skills over four years. Furthermore, while students in India and Russia gain academic skills during the first two years, students in China do not. These gaps in skill levels and gains provide insights into the global competitiveness of STEM university students across nations and institutional types., (© 2021. The Author(s), under exclusive licence to Springer Nature Limited.)
- Published
- 2021
- Full Text
- View/download PDF
50. Engineering leadership in a Chinese industrial context: An exploration using the four capabilities model.
- Author
-
Zhu, Jiabin, Hu, Yu, Zheng, Tianyi, and Li, Yike
- Subjects
LEADERSHIP ,ENGINEERS ,INDUSTRIAL engineers ,ENGINEERING ,SEMI-structured interviews - Abstract
Background: Over the past two decades, state policies and industrial associations have challenged engineering educators to expand the training of future engineers beyond technical competencies to the broader domain of professional skills development, with one key aspect being engineering leadership. Purpose: This study adopted the four capabilities (4‐Cap) model, which views leadership as a set of four capabilities—sensemaking, relating, visioning, and inventing—as a conceptual framework to explore and operationalize the core skills and attributes required for engineers in a Chinese industrial context. Method: A qualitative study was conducted through semistructured interviews with 23 practicing engineers from different industries (e.g., IT, automobile) and various types of companies (e.g., state‐owned companies, foreign‐invested enterprises) in China. Using a thematic analysis approach, themes relating to engineering leadership within and beyond the 4‐Cap model were reported. Results: Qualitatively, more themes emerged for the dimension of inventing than for the other dimensions. The themes and patterns suggested the central role of inventing, which predominantly represented an innovative process of design‐oriented problem‐solving and project management closely associated with themes in the other dimensions. Therefore, the 4‐Cap model was revisited and revised by highlighting the core construct of inventing. Conclusion: This study enriches the current understanding of engineering leadership, especially in a Chinese industrial context. The results emphasize the importance of design, problem‐solving, and the social component in the daily work of engineering professionals. Suggestions for educational practices and future research, along with a call for more empirical data on engineering leadership in China and from a global context, are proposed. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
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