资源类型

期刊论文 15

会议视频 1

年份

2023 1

2022 2

2021 3

2020 2

2019 1

2016 1

2015 1

2010 1

2007 1

1999 1

展开 ︾

关键词

square-twist折纸 1

保护地空缺 1

加速度数据；智能监测；内置传感器；智能手机；地铁 1

可编程性 1

国家公园 1

城市走廊 1

巨型绿野 1

建筑科学 1

折纸超材料 1

氢能源汽车；运输走廊；加氢站；SWOT分析 1

生态廊道 1

秦巴山脉区域 1

秦巴山脉地区 1

移动机器人；定位；即时定位和建图（SLAM）；走廊环境；粒子滤波；视觉特征 1

空间格局 1

空间规划 1

自然保护地体系 1

超材料 1

非周期性排布 1

展开 ︾

检索范围：

排序： 展示方式：

Analysis on damage causes of built-in corridor in core rock-fill dam on thick overburden: A case study

Jia’ao YU; Zhenzhong SHEN; Zhangxin HUANG

《结构与土木工程前沿（英文）》 2022年 第16卷 第6期   页码 762-780 doi: 10.1007/s11709-022-0847-8

摘要： The stress state of the built-in corridor in core rock-fill dam on thick overburden is extremely complex, which may produce cracking and damage. The purpose of this paper was to investigate the effect of thick overburden on the stress and deformation of the built-in corridor in a rock-fill dam, and ascertain the damage causes of the corridor. The rationality of the analysis method for corridor with similar structure is another focus. The approach is based on finite-element method and the calculation result accuracy is verified by the field monitoring data. The improved analysis method for corridors with similar structure is proposed by comparing various corridor load calculation methods and concrete constitutive models. Results demonstrate that the damage causes of the corridor are the deformability difference between the overburden and concrete and the special structural form. And the calculation model considering dam construction process, contact between concrete and surrounding soil, and concrete damage plasticity can reasonably reflect the mechanical behavior of the corridor. The research conclusions may have a reference significance for the analysis of tunnels similar to built-in corridors.

关键词： thick overburden     built-in corridor     stress     deformation     causes for damage     concrete damaged plasticity    

HTML PDF 收藏

Rapid evaluation technology for CNC machine tool slide level based on built-in sensors

Yuqing ZHOU, Xuesong MEI, Gedong JIANG, Nuogang SUN,

《机械工程前沿（英文）》 2010年 第5卷 第1期   页码 79-86 doi: 10.1007/s11465-009-0070-5

摘要： Slide level impacts the CNC machine tool performance. The deterioration of slide level will result in the torsional vibration of a feed-axis control system and lower the CNC machine tool control precision. It is necessary to investigate the rapid evaluation technology for the slide level of a CNC machine tool. In this paper, a new type of rapid evaluation method for machine tool slide level is proposed, which uses the linear scale, motor encoder, and AC servo motor current/output torque. To acquire level information, the built-in sensors test principle is profoundly investigated, and the mathematical model between the slide level and the measured data is established. In addition, two different level identification methods are comparatively analyzed. The analysis results of experiments show that it is simple, rapid, feasible, and reliable to use built-in sensors information for evaluating slide level.

关键词： slide level     built-in sensors     Stribeck effect     model identification    

HTML PDF 收藏

Smart contract applications in the built environment: How prepared are Nigerian construction stakeholders

《工程管理前沿（英文）》 doi: 10.1007/s42524-023-0275-z

摘要： Studies have demonstrated that advanced technology, such as smart contract applications, can enhance both pre- and post-contract administration within the built environment sector. Smart contract technology, exemplifying blockchain technologies, has the potential to improve transparency, trust, and the security of data transactions within this sector. However, there is a dearth of academic literature concerning smart contract applications within the construction industries of developing countries, with a specific focus on Nigeria. Consequently, this study seeks to explore the relevance of smart contract technology and address the challenges impeding its adoption, offering strategies to mitigate the obstacles faced by smart contract applications. To investigate the stakeholders, this research conducted 14 virtual interview sessions to achieve data saturation. The interviewees encompassed project management practitioners, senior management personnel from construction companies, experts in construction dispute resolution, professionals in construction software, and representatives from government construction agencies. The data obtained from these interviews underwent thorough analysis employing a thematic approach. The study duly recognizes the significance of smart contract applications within the sector. Among the 12 identified barriers, issues such as identity theft and data leakage, communication and synchronization challenges, high computational expenses, lack of driving impetus, excessive electricity consumption, intricate implementation processes, absence of a universally applicable legal framework, and the lack of a localized legal framework were recurrent impediments affecting the adoption of smart contract applications within the sector. The study also delves into comprehensive measures to mitigate these barriers. In conclusion, this study critically evaluates the relevance of smart contract applications within the built environment, with a specific focus on promoting their usage. It may serve as a pioneering effort, especially within the context of Nigeria.

关键词： built environment industry     digitalization     Nigeria     smart contract     technological revolution    

HTML PDF 收藏

Built environment and management: exploring grand challenges and management issues in built environment

Liang WANG, Xiaolong XUE, Rebecca J. YANG, Xiaowei LUO, Hongying ZHAO

《工程管理前沿（英文）》 2019年 第6卷 第3期   页码 313-326 doi: 10.1007/s42524-019-0049-9

摘要： Engineering management research objects have gradually been transformed from micro-scale projects to macro-scale built environment. Built environment has driven the advancement of civilization through human history. From the Stone Age to the modern era, built environment, which refers to manmade surroundings, has provided the setting for human activities. Built environment has undergone developments and evolution processes as civilization grew. Today, technological advancements cause influences of built environment to encompass every aspect of life, as material, spatial and cultural products of the human labor force, which combines material factors and energy in a lively way of work and in forms. However, the concept of built environment remains unclear. Built environment faces a major challenge, such as the use of science and technology to solve key national and global issues. Thus, the definitions of built environment were systematically reviewed and summarized from different perspectives and levels to address these issues. The grand challenges of built environment, including climate change and energy consumption, urbanization and infrastructure construction, growth, and innovation, were summarized. Furthermore, the corresponding management issues and future development strategies were proposed to solve identified challenges of built environment.

关键词： built environment     innovation     sustainability     resilience     urbanization     digitalization     infrastructure    

HTML PDF 收藏

Understanding building-occupant-microbiome interactions toward healthy built environments: A review

Shuai Li, Zhiyao Yang, Da Hu, Liu Cao, Qiang He

《环境科学与工程前沿（英文）》 2021年 第15卷 第4期 doi: 10.1007/s11783-020-1357-3

摘要： Abstract • The built environment, occupants, and microbiomes constitute an integrated ecosystem. • This review summarizes research progress which has focused primarily on microbiomes. • Critical research needs include studying impacts of occupant behaviors on microbiomes. Built environments, occupants, and microbiomes constitute a system of ecosystems with extensive interactions that impact one another. Understanding the interactions between these systems is essential to develop strategies for effective management of the built environment and its inhabitants to enhance public health and well-being. Numerous studies have been conducted to characterize the microbiomes of the built environment. This review summarizes current progress in understanding the interactions between attributes of built environments and occupant behaviors that shape the structure and dynamics of indoor microbial communities. In addition, this review also discusses the challenges and future research needs in the field of microbiomes of the built environment that necessitate research beyond the basic characterization of microbiomes in order to gain an understanding of the causal mechanisms between the built environment, occupants, and microbiomes, which will provide a knowledge base for the development of transformative intervention strategies toward healthy built environments. The pressing need to control the transmission of SARS-CoV-2 in indoor environments highlights the urgency and significance of understanding the complex interactions between the built environment, occupants, and microbiomes, which is the focus of this review.

关键词： Microbiome     Built Environment     Occupant     Health    

HTML PDF 收藏

Big Geodata Reveals Spatial Patterns of Built Environment Stocks Across and Within Cities in China

Zhou Huang,Yi Bao,Ruichang Mao,Han Wang,Ganmin Yin,Lin Wan,Houji Qi,Qiaoxuan Li,Hongzhao Tang,Qiance Liu,Linna Li,Bailang Yu,Qinghua Guo,Yu Liu,Huadong Guo,Gang Liu,

《工程（英文）》 doi: 10.1016/j.eng.2023.05.015

摘要： The patterns of material accumulation in buildings and infrastructure accompanied by rapid urbanization offer an important, yet hitherto largely missing stock perspective for facilitating urban system engineering and informing urban resources, waste, and climate strategies. However, our existing knowledge on the patterns of built environment stocks across and particularly within cities is limited, largely owing to the lack of sufficient high spatial resolution data. This study leveraged multi-source big geodata, machine learning, and bottom-up stock accounting to characterize the built environment stocks of 50 cities in China at 500 m fine-grained levels. The per capita built environment stock of many cities (240 tonnes per capita on average) is close to that in western cities, despite considerable disparities across cities owing to their varying socioeconomic, geomorphology, and urban form characteristics. This is mainly owing to the construction boom and the building and infrastructure-driven economy of China in the past decades. China’s urban expansion tends to be more “vertical” (with high-rise buildings) than “horizontal” (with expanded road networks). It trades skylines for space, and reflects a concentration–dispersion–concentration pathway for spatialized built environment stocks development within cities in China. These results shed light on future urbanization in developing cities, inform spatial planning, and support circular and low-carbon transitions in cities.

关键词： urban system engineering     built environment stock     spatial pattern     urban sustainability     big geodata    

HTML PDF 收藏

Advanced nitrogen removal using pilot-scale SBR with intelligent control system built on three layer

YANG Qing, WANG Shuying, YANG Anming, GUO Jianhua, BO Fengyang

《环境科学与工程前沿（英文）》 2007年 第1卷 第1期   页码 33-38 doi: 10.1007/s11783-007-0006-4

摘要： Since eutrophication has become increasingly severe in China, nitrogen and phosphorous have been the concern of wastewater treatment, especially nitrogen removal. The stabilization of the intelligent control system and nitrogen removal efficiency were investigated in a pilot-scale aerobic-anoxic sequencing batch reactor (SBR) with a treatment capacity of 60 m/d. Characteristic points on the profiles of dissolved oxygen (DO), pH, and oxidation reduction potential (ORP) could exactly reflect the process of nitrification and denitrification. Using the intelligent control system not only could save energy, but also could achieve advanced nitrogen removal. Applying the control strategy water quality of the effluent could stably meet the national first discharge standard during experiment of 10 months. Even at low temperature ( = 13vH), chemical oxygen demand (COD) and total nitrogen (TN) in the effluent were under 50 and 5 mg/L, respectively.

关键词： eutrophication     pilot-scale aerobic-anoxic     stabilization     oxidation reduction     nitrification    

HTML PDF 收藏

基于智能手机内置传感器的地铁轨道状态监测 Research Articles

从建力1,2,高鸣源3,4,王源5,陈嵘1,2,王平1,2

《信息与电子工程前沿（英文）》 2020年 第21卷 第8期   页码 1119-1266 doi: 10.1631/FITEE.1900242

摘要： 智能手机内置多种传感器，可作为一种智能传感设备收集信息（如振动与位置）。本文提出一种方法，以智能手机为传感平台，通过开发相应的应用软件实时获取车辆加速度、速度和位置信息，从而实现基于绿色理念的地铁轨道状态监测。通过智能手机和高精度传感器现场试验，根据检测数据的标准差、Sperling指标和ISO-2631计权加速度验证其准确性。结合无全球定位系统覆盖的隧道环境坐标校准算法，提出一种车辆定位方法。基于时域积分法，建立车辆纵向加速度与车辆运行区间里程位置的关系，计算相邻车站间的距离并与实际值比较。验证了所提方法有效性，且证实该方法可用于无全球定位系统覆盖的隧道环境。结果表明，站间距范围内车辆位置误差可控制在5%以内。该研究充分利用智能手机，为智能轨道交通领域人类生活提供一种智能且环保的方法。

关键词： 加速度数据；智能监测；内置传感器；智能手机；地铁    

HTML PDF 收藏

淮河生态经济带氢能运输走廊发展SWOT分析

张亮亮,刘 勇,周凌云

《中国工程科学》 2015年 第17卷 第3期   页码 96-99

摘要：

针对汽车等载运工具消耗石油资源迅速增长而石油资源不足问题，用氢能做汽车等载运工具的燃料，是解决载运工具燃料问题的重要举措之一。国内已在江苏沿海建成非并网风电制氢示范工程，并规划建设沿淮千里淮河氢能运输走廊。本文通过SWOT（strengths,weaknesses，opportunities，threats）分析表明淮河生态经济带氢能运输走廊发展优势与劣势并存，机遇与威胁同在，并提出了淮河生态经济带氢能运输走廊发展目标。最后，本文提出了淮河生态经济带氢能运输走廊发展的对策与建议。

关键词： 氢能源汽车；运输走廊；加氢站；SWOT分析    

HTML PDF 收藏

Comparative analysis of impact of human occupancy on indoor microbiomes

《环境科学与工程前沿（英文）》 2021年 第15卷 第5期 doi: 10.1007/s11783-020-1383-1

摘要：

• Exposure to indoor microbiomes is a public health concern in educational facilities.

关键词： Built environment     Indoor microbiome     Occupant     Building     Sequencing    

HTML PDF 收藏

二滩水电站——本世纪建成的我国最大的水电站

黄新生

《中国工程科学》 1999年 第1卷 第1期   页码 86-86

HTML PDF 收藏

长走廊环境下视觉特征辅助的移动机器人定位研究 Research Article

葛耿育1,3,张毅2,王维1,胡立鹤1,王洋1,蒋勤1

《信息与电子工程前沿（英文）》 2023年 第24卷 第6期   页码 876-889 doi: 10.1631/FITEE.2200208

摘要： 定位在移动机器人导航系统中起着至关重要的作用，是自主移动的基本能力。在室内环境中，当前主流的定位方案使用2D激光雷达，利用即时定位和建图（SLAM）技术来构建占据栅格地图；然后，基于已知的地图来定位。然而，此类方案仅在具有显著几何特征的区域有效。对于重复、对称或类似结构的区域，例如长走廊，常规粒子过滤方法将失效。为解决这一问题，本文提出一种从粗到细的模式，该模式使用视觉特征辅助长走廊中的移动机器人定位。首先，移动机器人被远程控制，沿着中线从起始位置移动到终点。在移动过程中，使用基于激光的SLAM方法建图。同时，根据关键帧选择策略创建关键帧图像组成的视觉地图。关键帧通过时间戳与机器人的姿势相关联。其次，基于提取的激光扫描距离特征，提出一种移动策略，确定初始粗略位置。这对于移动机器人来说至关重要，因为它给出了机器人需要移动到哪里才能调整姿势的指令。然后，移动机器人根据移动策略以适当的视角捕捉图像，并将其与图像地图进行匹配，以获得粗略的定位。最后，提出一种改进的粒子滤波方法来实现精细定位。实验结果表明，该方法对全局定位是有效和鲁棒的。定位成功率达98.8%，平均移动距离仅0.31米。此外，当移动机器人被绑架到走廊中的另一个位置时，该方法依然有效。

关键词： 移动机器人；定位；即时定位和建图（SLAM）；走廊环境；粒子滤波；视觉特征    

HTML PDF 收藏

秦巴山脉国家公园与自然保护地空间体系研究

周语夏,刘海龙,赵智聪,杨锐

《中国工程科学》 2020年 第22卷 第1期   页码 86-95 doi: 10.15302/JSSCAE2020.01.009

摘要：

为了优化秦巴山脉区域的生态空间格局，保障我国中央生态屏障的生物多样性与水源涵养等生态功能供给，在秦巴山脉区域进一步完善和落实以国家公园为主体的自然保护地空间体系，研究通过分析指示物种的适宜生态环境条件，进行最小成本路径分析，对秦巴山脉主要生态廊道进行空间识别，并结合现有保护地分布做保护空缺分析。研究建议在秦巴山脉新增伏牛山国家公园，结合大熊猫国家公园试点陕西片区新增秦岭国家公园，从而形成该区域4 个国家公园空间布局，并在此基础上，通过新增其他类型自然公园，进一步完善现有自然保护地在重要珍稀物种及水源地保护空缺方面的问题。

关键词： 秦巴山脉区域     国家公园     自然保护地体系     保护地空缺     生态廊道    

HTML PDF 收藏

基于高速交通网络的秦巴山脉地区空间格局研究

武廷海,张能

《中国工程科学》 2016年 第18卷 第5期   页码 52-59 doi: 10.15302/J-SSCAE-2016.05.008

摘要：

改善通达性是秦巴山脉地区扶贫开发和实现可持续发展的重要手段。本文根据《国家公路网规划(2013年—2030年)》与《中长期铁路网规划》中确定的高速交通网络，研究秦巴山脉地区及周边城市群地区中心城市的可达性，进而模拟秦巴山脉地区的空间格局。研究发现，随着国家规划高速交通网络的建设，秦巴山脉地区将形成以西安为中心的西安—万州、西安—襄阳、西安—洛阳三条放射型主要城市走廊，以及西安—天水、西安—广元、达州—襄阳—南阳—洛阳三条次要城市走廊。受其城市走廊的影响，秦巴山脉地区将形成以陇南、巴中、十堰、栾川为核心的四个巨型绿野。本文建议，未来的秦巴山脉地区空间规划，在努力发挥秦巴山脉地区对周边城市群地区生态平衡作用的同时，要自觉建立秦巴山脉地区内部的空间秩序，合理安排城市走廊与巨型绿野，实现保护与发展的平衡。

关键词： 秦巴山脉地区     空间格局     高速交通网络     空间规划     城市走廊     巨型绿野    

HTML PDF 收藏

基于刚性与非刚性Square-Twist胞元混合排布的折纸超材料设计与性能编程研究 Article

马家耀, 臧世玺, 陈焱, 由衷

《工程（英文）》 2022年 第17卷 第10期   页码 82-92 doi: 10.1016/j.eng.2022.02.015

摘要：

相比由完全相同的胞元组成的超材料，由类型和性能均不同的胞元形成的超材料能够实现更大的力学性能调控范围。然而，目前关于此种超材料的几何设计和性能编程方法鲜有报道。本文通过将一系列不同类型的square-twist 折纸胞元进行空间排布，设计了一种新型折纸超材料。首先建立了超材料胞元的空间排布规则，保证了相邻胞元山-谷线折痕的几何匹配。进而进行了双轴拉伸实验，实验结果表明该新型超材料的变形能、最大刚度和初始峰值力均可由组成胞元的对应特性叠加得到，并且通过改变胞元类型、数量、几何参数、材料参数可以实现对超材料力学性能的大范围编程调控。此外，对具有固定胞元数量的超材料，通过改变山-谷线折痕的排布可以得到胞元类型与数量不同的一系列超材料，从而实现根据具体需求的力学性能重编程。本工作为可编程折纸超材料的设计提供了新的思路，在机械等工程领域具有广阔的应用前景。

关键词： 折纸超材料     超材料     square-twist折纸     非周期性排布     可编程性    

HTML PDF 收藏

标题 作者 时间 类型 操作

Analysis on damage causes of built-in corridor in core rock-fill dam on thick overburden: A case study

Jia’ao YU; Zhenzhong SHEN; Zhangxin HUANG

期刊论文

Rapid evaluation technology for CNC machine tool slide level based on built-in sensors

Yuqing ZHOU, Xuesong MEI, Gedong JIANG, Nuogang SUN,

期刊论文

Smart contract applications in the built environment: How prepared are Nigerian construction stakeholders

期刊论文

Built environment and management: exploring grand challenges and management issues in built environment

Liang WANG, Xiaolong XUE, Rebecca J. YANG, Xiaowei LUO, Hongying ZHAO

期刊论文

Understanding building-occupant-microbiome interactions toward healthy built environments: A review

Shuai Li, Zhiyao Yang, Da Hu, Liu Cao, Qiang He

期刊论文

Big Geodata Reveals Spatial Patterns of Built Environment Stocks Across and Within Cities in China

Zhou Huang,Yi Bao,Ruichang Mao,Han Wang,Ganmin Yin,Lin Wan,Houji Qi,Qiaoxuan Li,Hongzhao Tang,Qiance Liu,Linna Li,Bailang Yu,Qinghua Guo,Yu Liu,Huadong Guo,Gang Liu,

期刊论文

Advanced nitrogen removal using pilot-scale SBR with intelligent control system built on three layer

YANG Qing, WANG Shuying, YANG Anming, GUO Jianhua, BO Fengyang

期刊论文

基于智能手机内置传感器的地铁轨道状态监测

从建力1,2,高鸣源3,4,王源5,陈嵘1,2,王平1,2

期刊论文

淮河生态经济带氢能运输走廊发展SWOT分析

张亮亮,刘 勇,周凌云

期刊论文

Comparative analysis of impact of human occupancy on indoor microbiomes

期刊论文

二滩水电站——本世纪建成的我国最大的水电站

黄新生

期刊论文

长走廊环境下视觉特征辅助的移动机器人定位研究

葛耿育1,3,张毅2,王维1,胡立鹤1,王洋1,蒋勤1

期刊论文

秦巴山脉国家公园与自然保护地空间体系研究

周语夏,刘海龙,赵智聪,杨锐

期刊论文

基于高速交通网络的秦巴山脉地区空间格局研究

武廷海,张能

期刊论文

基于刚性与非刚性Square-Twist胞元混合排布的折纸超材料设计与性能编程研究

马家耀, 臧世玺, 陈焱, 由衷

期刊论文