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Energy neutrality potential of wastewater treatment plants: A novel evaluation framework integrating

《环境科学与工程前沿(英文)》 2022年 第16卷 第9期 doi: 10.1007/s11783-022-1549-0

摘要:

• Framework of indicators was established based on energy efficiency and recovery.

关键词: Wastewater treatment plants     Energy neutrality potential     Energy efficiency     Energy recovery     Evaluation framework    

An integrated framework for automatic green building evaluation: A case study of China

《工程管理前沿(英文)》 2024年 第11卷 第2期   页码 269-287 doi: 10.1007/s42524-023-0274-0

摘要: With the burgeoning emphasis on sustainable construction practices in China, the demand for green building assessment has significantly escalated. The overall evaluation process comprises two key components: The acquisition of evaluation data and the evaluation of green scores, both of which entail considerable time and effort. Previous research predominantly concentrated on automating the latter process, often neglecting the exploration of automating the former in accordance with the Chinese green building assessment system. Furthermore, there is a pressing requirement for more streamlined management of structured standard knowledge to facilitate broader dissemination. In response to these challenges, this paper presents a conceptual framework that integrates building information modeling, ontology, and web map services to augment the efficiency of the overall evaluation process and the management of standard knowledge. More specifically, in accordance with the Assessment Standard for Green Building (GB/T 50378-2019) in China, this study innovatively employs visual programming software, Dynamo in Autodesk Revit, and the application programming interface of web map services to expedite the acquisition of essential architectural data and geographic information for green building assessment. Subsequently, ontology technology is harnessed to visualize the management of standard knowledge related to green building assessment and to enable the derivation of green scores through logical reasoning. Ultimately, a residential building is employed as a case study to validate the theoretical and technical feasibility of the developed automated evaluation conceptual framework for green buildings. The research findings hold valuable utility in providing a self-assessment method for applicants in the field.

关键词: automatic evaluation     green building     BIM     web map service     ontology inference application    

Evaluation of the situational awareness effects for smart distribution networks under the noveldesign of indicator framework and hybrid weighting method

Leijiao GE, Yuanliang LI, Suxuan LI, Jiebei ZHU, Jun YAN

《能源前沿(英文)》 2021年 第15卷 第1期   页码 143-158 doi: 10.1007/s11708-020-0703-2

摘要: As a key application of smart grid technologies, the smart distribution network (SDN) is expected to have a high diversity of equipment and complexity of operation patterns. Situational awareness (SA), which aims to provide a critical visibility of the SDN, will enable a significant assurance for stable SDN operations. However, the lack of systematic evaluation through the three stages of perception, comprehensive, and prediction may prevent the SA technique from effectively achieving the performance necessary to monitor and respond to events in SDN. To analyze the feasibility and effectiveness of the SA technique for the SDN, a comprehensive evaluation framework with specific performance indicators and systematic weighting methods is proposed in this paper. Besides, to implement the indicator framework while addressing the key issues of human expert scoring ambiguity and the lack of data in specific SDN areas, an improved interval-based analytic hierarchy process-based subjective weighting and a multi-objective programming method-based objective weighting are developed to evaluate the SDN SA performance. In addition, a case study in a real distribution network of Tianjin China is conducted whose outcomes verify the practicality and effectiveness of the proposed SA technique for SDN operating security.

关键词: distribution networks     operation and maintenance     expert systems    

Metal-organic framework UiO-66 membranes

Xinlei Liu

《化学科学与工程前沿(英文)》 2020年 第14卷 第2期   页码 216-232 doi: 10.1007/s11705-019-1857-5

摘要: Metal-organic frameworks (MOFs) have emerged as a class of promising membrane materials. UiO-66 is a prototypical and stable MOF material with a number of analogues. In this article, we review five approaches for fabricating UiO-66 polycrystalline membranes including synthesis, secondary synthesis, biphase synthesis, gas-phase deposition and electrochemical deposition, as well as their applications in gas separation, pervaporation, nanofiltration and ion separation. On this basis, we propose possible methods for scalable synthesis of UiO-66 membranes and their potential separation applications in the future.

关键词: membrane     metal-organic framework     UiO-66     separation    

Livelihood transformation from fishing to tourism: an adaptive sustainable livelihood framework for understanding

《农业科学与工程前沿(英文)》 doi: 10.15302/J-FASE-2024560

摘要: Livelihood transformation from fishing to tourism: an adaptive sustainable livelihood framework for understanding lakeside communities of China

关键词: communities China     livelihood framework lakeside    

A temporal framework for building up of healthy soils PERSPECTIVE

《农业科学与工程前沿(英文)》 2024年 第11卷 第2期   页码 292-296 doi: 10.15302/J-FASE-2024561

摘要:

A temporal framework for building up of healthy soils

Optimizing iodine capture performance by metal–organic framework containing with bipyridine units

《化学科学与工程前沿(英文)》 2023年 第17卷 第4期   页码 395-403 doi: 10.1007/s11705-022-2218-3

摘要: Radioactive iodine exhibits medical values in radiology, but its excessive emissions can cause environmental pollution. Thus, the capture of radioiodine poses significant engineering for the environment and medical radiology. The adsorptive capture of radioactive iodine by metal–organic frameworks (MOFs) has risen to prominence. In this work, a Th-based MOF (denoted as Th-BPYDC) was structurally designed and synthesized, consisting of [Th63-O)43-OH)4(H2O)6]12+ clusters, abundant bipyridine units, and large cavities that allowed guest molecules diffusion and transmission. Th-BPYDC exhibited the uptake capacities of 2.23 g·g−1 and 312.18 mg·g−1 towards I2 vapor and I2 dissolved in cyclohexane, respectively, surpassing its corresponding analogue Th-UiO-67. The bipyridine units boosted the adsorption performance, and Th-BPYDC showed good reusability with high stability. Our work thus opened a new way for the synthesis of MOFs to capture radioactive iodine.

关键词: metal–organic framework     iodine     adsorption     nuclear waste     environmental remediation    

隐私计算——概念、计算框架及其未来发展趋势 Article

李凤华, 李晖, 牛犇, 陈金俊

《工程(英文)》 2019年 第5卷 第6期   页码 1179-1192 doi: 10.1016/j.eng.2019.09.002

摘要:

随着信息技术的快速发展和个性化服务的不断演进,大型互联网公司在服务用户过程中积累了海数据。此外,数据的频繁跨境、跨系统、跨生态圈交互已成为常态,加剧了隐私信息在不同信息系统中有意/无意留存,但随之而来的隐私信息保护短板效应、隐私侵犯追踪溯源难等问题越来越严重,致使现有的隐私保护方案不能提供体系化的保护。本文从信息采集、存储、处理、发布(含交换)、销毁等全生命周期的各个环节角度出发,阐明了现有常见应用场景下隐私保护算法的局限性,提出了隐私计算理论及关键技术体系,其核心内容包括:隐私计算框架、隐私计算形式化定义、隐私计算应遵循的四个原则、算法设计准则、隐私保护效果评估、隐私计算语言等内容。最后以四个应用场景为示例描述了隐私计算的普适性应用,并展望了隐私计算的未来研究方向和待解决问题,期待指引开放环境下用户隐私保护等方面的理论与技术研究。

关键词: 隐私计算     隐私信息描述     隐私度量     隐私保护效果评估     隐私计算语言    

Iteration framework for solving mixed lubrication computation problems

《机械工程前沿(英文)》 2021年 第16卷 第3期   页码 635-648 doi: 10.1007/s11465-021-0632-8

摘要: The general discrete scheme of time-varying Reynolds equation loses the information of the previous step, which makes it unreasonable. A discretization formula of the Reynolds equation, which is based on the Crank–Nicolson method, is proposed considering the physical message of the previous step. Gauss–Seidel relaxation and distribution relaxation are adopted for the linear operators of pressure during the numerical solution procedure. In addition to the convergent criteria of pressure distribution and load, an estimation framework is developed to investigate the relative error of the most important term in the Reynolds equation. Smooth surface with full contacts and mixed elastohydrodynamic lubrication is tested for validation. The asperity contact and sinusoidal wavy surface are examined by the proposed discrete scheme. Results show the precipitous decline in the boundary of the contact area. The relative error suggests that the pressure distribution is reliable and reflects the accuracy and effectiveness of the developed method.

关键词: mixed lubrication     discretization formula     relative error     Reynolds equation     asperity    

MANURE AND METROPOLES---A GLOBAL FRAMEWORK FOR NUTRIENT CYCLING IN FOOD SYSTEMS

《农业科学与工程前沿(英文)》 2021年 第8卷 第1期

Fluorescence detection of phosphate in an aqueous environment by an aluminum-based metal-organic framework

《环境科学与工程前沿(英文)》 2022年 第16卷 第12期 doi: 10.1007/s11783-022-1594-8

摘要:

● A novel Al-MOF was successfully synthesized by a facile solvothermal method.

关键词: Fluorescence     Metal-organic framework     Phosphate     Detection     Al-MOF    

Covalent triazine framework with efficient photocatalytic activity in aqueous and solid media

Cyrine Ayed, Wei Huang, Kai A. I. Zhang

《化学科学与工程前沿(英文)》 2020年 第14卷 第3期   页码 397-404 doi: 10.1007/s11705-019-1884-2

摘要: Covalent triazine frameworks (CTFs) have been recently employed for visible light-driven photocatalysis due to their unique optical and electronic properties. However, the usually highly hydrophobic nature of CTFs, which originates from their overall aromatic backbone, leads to limitations of CTFs for applications in aqueous media. In this study, we aim to extend the range of the application media of CTFs and design hybrid material of a CTF and mesoporous silica (SBA-15) for efficient photocatalysis in aqueous medium. A thiophene-containing CTF was directly synthesized in mesopores of SBA-15. Due to the high surface area and the added hydrophilic properties by silica, the hybrid material demonstrated excellent adsorption of organic molecules in water. This leads not only to high photocatalytic performance of the hybrid material for the degradation of organic dyes in water, but also for efficient photocatalysis in solvent-free and solid state. Furthermore, the reusability, stability and easy recovery of the hybrid material offers promising metal-free heterogeneous photocatalyst for broader applications in different reaction media.

关键词: photocatalysis     covalent triazine framework     aqueous medium     SBA-15     solid state    

Standard Framework Construction of Technology and Equipment for Big Data in Crop Phenomics

Weiliang Wen,Shenghao Gu,Ying Zhang,Wanneng Yang,Xinyu Guo,

《工程(英文)》 doi: 10.1016/j.eng.2024.06.001

摘要: Crop phenomics has rapidly progressed in recent years due to the growing need for crop functional genomics, digital breeding, and smart cultivation. Despite this advancement, the lack of standards for the creation and usage of crop phenomics technology and equipment has become a bottleneck, limiting the industry’s high-quality development. This paper begins with an overview of the crop phenotyping industry and presents an industrial mapping of technology and equipment for big data in crop phenomics. It analyzes the necessity and current state of constructing a standard framework for crop phenotyping. Furthermore, this paper proposes the intended organizational structure and goals of the standard framework. It details the essentials of the standard framework in the research and development of hardware and equipment, data acquisition, and the storage and management of crop phenotyping data. Finally, it discusses promoting the construction and evaluation of the standard framework, aiming to provide ideas for developing a high-quality standard framework for crop phenotyping.

关键词: Crop phenomics     Big data     Phenotyping technology and equipment     Standard framework     Industrial mapping    

Nickel-based metal−organic framework-derived whisker-shaped nickel phyllosilicate toward efficiently

《化学科学与工程前沿(英文)》 2022年 第16卷 第10期   页码 1493-1504 doi: 10.1007/s11705-022-2168-9

摘要: Metal−organic framework-derived materials have attracted significant attention in the applications of functional materials. In this work, the rod-like nickel-based metal−organic frameworks were first synthesized and subsequently employed as the hard templates and nickel sources to prepare the whisker-shaped nickel phyllosilicate using a facile hydrothermal technology. Then, the nickel phyllosilicate whiskers were evaluated to enhance the mechanical, thermal, flammable, and tribological properties of epoxy resin. The results show that adequate nickel phyllosilicate whiskers can disperse well in the matrix, improving the tensile strength and elastic modulus by 13.6% and 56.4%, respectively. Although the addition of nickel phyllosilicate whiskers could not obtain any UL-94 ratings, it enhanced the difficulty in burning the resulted epoxy resin nanocomposites and considerably enhanced thermal stabilities. Additionally, it was demonstrated that such nickel phyllosilicate whiskers preferred to improve the wear resistance instead of the antifriction feature. Moreover, the wear rate of epoxy resin nanocomposites was reduced significantly by 80% for pure epoxy resin by adding 1 phr whiskers. The as-prepared nickel phyllosilicate whiskers proved to be promising reinforcements in preparing of high-performance epoxy resin nanocomposites.

关键词: metal−organic framework     nickel phyllosilicate     whisker     epoxy resin     mechanical response     tribological performance     flammable property    

Cobalt nanoparticle decorated N-doped carbons derived from a cobalt covalent organic framework for oxygen

《化学科学与工程前沿(英文)》 2021年 第15卷 第6期   页码 1550-1560 doi: 10.1007/s11705-021-2104-4

摘要: The low cost and highly efficient construction of electrocatalysts has attracted significant attention owing to the use of clean and sustainable energy technologies. In this work, cobalt nanoparticle decorated N-doped carbons (Co@NC) are synthesized by the pyrolysis of a cobalt covalent organic framework under an inert atmosphere. The Co@NC demonstrates improved electrocatalytic capabilities compared to N-doped carbon without the addition of Co nanoparticles, indicating the important role of cobalt. The well-dispersed active sites (Co-Nx) and the synergistic effect between the carbon matrix and Co nanoparticles greatly enhance the electrocatalytic activity for the oxygen reduction reaction. In addition, the Co content has a significant effect on the catalytic activity. The resulting Co@NC-0.86 exhibits a superb electrocatalytic activity for the oxygen reduction reaction in an alkaline electrolyte in terms of the onset potential (0.90 V), half-wave potential (0.80 V) and the limiting current density (4.84 mA·cm–2), and a high selectivity, as well as a strong methanol tolerance and superior durability, these results are comparable to those of the Pt/C catalyst. Furthermore, the superior bifunctional activity of Co@NC-0.86 was also confirmed in a home-built Zn-air battery, signifying the possibility for application in electrode materials and in current energy conversion and storage devices.

关键词: cobalt embedment     N-doped carbons     covalent organic framework     oxygen reduction     Zn-air battery    

标题 作者 时间 类型 操作

Energy neutrality potential of wastewater treatment plants: A novel evaluation framework integrating

期刊论文

An integrated framework for automatic green building evaluation: A case study of China

期刊论文

Evaluation of the situational awareness effects for smart distribution networks under the noveldesign of indicator framework and hybrid weighting method

Leijiao GE, Yuanliang LI, Suxuan LI, Jiebei ZHU, Jun YAN

期刊论文

Metal-organic framework UiO-66 membranes

Xinlei Liu

期刊论文

Livelihood transformation from fishing to tourism: an adaptive sustainable livelihood framework for understanding

期刊论文

A temporal framework for building up of healthy soils

期刊论文

Optimizing iodine capture performance by metal–organic framework containing with bipyridine units

期刊论文

隐私计算——概念、计算框架及其未来发展趋势

李凤华, 李晖, 牛犇, 陈金俊

期刊论文

Iteration framework for solving mixed lubrication computation problems

期刊论文

MANURE AND METROPOLES---A GLOBAL FRAMEWORK FOR NUTRIENT CYCLING IN FOOD SYSTEMS

期刊论文

Fluorescence detection of phosphate in an aqueous environment by an aluminum-based metal-organic framework

期刊论文

Covalent triazine framework with efficient photocatalytic activity in aqueous and solid media

Cyrine Ayed, Wei Huang, Kai A. I. Zhang

期刊论文

Standard Framework Construction of Technology and Equipment for Big Data in Crop Phenomics

Weiliang Wen,Shenghao Gu,Ying Zhang,Wanneng Yang,Xinyu Guo,

期刊论文

Nickel-based metal−organic framework-derived whisker-shaped nickel phyllosilicate toward efficiently

期刊论文

Cobalt nanoparticle decorated N-doped carbons derived from a cobalt covalent organic framework for oxygen

期刊论文