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Preface to special issue on “Engineering Nanostructured Materials for Advanced Energy and Environmental

《化学科学与工程前沿(英文)》 2023年 第17卷 第11期   页码 1621-1622 doi: 10.1007/s11705-023-2365-1

摘要: Preface to special issue on “Engineering Nanostructured Materials for Advanced Energy and Environmental Catalysis”

Influence of advanced engineering measures on displacement and stress field of surrounding rock in tunnels

《结构与土木工程前沿(英文)》 doi: 10.1007/s11709-023-0966-x

摘要: Based on significant improvements in engineering materials, three advanced engineering measures have been proposed—super anchor cables, high-strength concrete anti-fault caverns, and grouting modification using high-strength concrete-to resist fault dislocation in the surrounding rock near tunnels crossing active strike-slip faults. Moreover, single- or multiple-joint advanced engineering measures form the local rock mass-anti-fault (LRAF) method. A numerical method was used to investigate the influence of LRAF methods on the stress and displacement fields of the surrounding rock, and the anti-fault effect was evaluated. Finally, the mechanism of action of the anchor cable was verified using a three-dimensional numerical model. The numerical results indicated that the anchor cable and grouting modification reduced the displacement gradient of the local surrounding rock near the tunnels crossing fault. Furthermore, anchor cable and grouting modifications changed the stress field of the rock mass in the modified area. The tensile stress field of the rock mass in the modified anchor cable area was converted into a compressive stress field. The stress field in the modified grouting area changed from shear stress in the fault slip direction to tensile stress in the axial tunnel direction. The anti-fault cavern resisted the dislocation displacement and reduced the maximum dislocation magnitude, displacement gradient, and shear stress. Among the three advanced engineering measures, the anchor cable was the core of the three advanced engineering measures. An anchor cable, combined with other LRAF measures, can form an artificial safety island at the cross-fault position of the rock mass to protect the tunnel. The research results provide a new supporting idea for the surrounding rock of tunnels crossing active strike-slip faults.

关键词: anti-fault effect     engineering measures     LRAF method     stress and displacement field     tunnel-crossing active faults    

Protein microspheres for pulmonary drug delivery

Yongda SUN,

《化学科学与工程前沿(英文)》 2010年 第4卷 第1期   页码 82-86 doi: 10.1007/s11705-009-0307-1

摘要: A new supercritical fluid (SCF) technique was developed for the preparation of microspheres for pulmonary drug delivery (PDD). This technique, based on the anti-solvent process, has incorporated advanced engineering design features to enable improved control of the particle formation process. Human recombinant insulin (HRI) was used as a model compound to evaluate the efficiency of this SCF process. An aqueous solution of HRI with a co-solvent was sprayed into high pressure carbon dioxide that extracted the solvent and water, leading to a dry fine powder with good particle size distribution and near ideal morphology for pulmonary drug delivery.

关键词: advanced engineering     improved     pressure     aqueous     technique    

Concrete corrosion in wastewater systems: Prediction and sensitivity analysis using advanced extreme

Mohammad ZOUNEMAT-KERMANI, Meysam ALIZAMIR, Zaher Mundher YASEEN, Reinhard HINKELMANN

《结构与土木工程前沿(英文)》 2021年 第15卷 第2期   页码 444-460 doi: 10.1007/s11709-021-0697-9

摘要: The implementation of novel machine learning models can contribute remarkably to simulating the degradation of concrete due to environmental factors. This study considers the sulfuric acid corrosive factor in wastewater systems to simulate concrete mass loss using five machine learning models. The models include three different types of extreme learning machines, including the standard, online sequential, and kernel extreme learning machines, in addition to the artificial neural network, classification and regression tree model, and statistical multiple linear regression model. The reported values of concrete mass loss for six different types of concrete are the target values of the machine learning models. The input variability was assessed based on two scenarios prior to the application of the predictive models. For the first assessment, the machine learning models were developed using all the available cement and concrete mixture input variables; the second assessment was conducted based on the gamma test approach, which is a sensitivity analysis technique. Subsequently, the sensitivity analysis of the most effective parameters for concrete corrosion was tested using three different approaches. The adopted methodology attained optimistic and reliable modeling results. The online sequential extreme learning machine model demonstrated superior performance over the other investigated models in predicting the concrete mass loss of different types of concrete.

关键词: sewer systems     environmental engineering     data-driven methods     sensitivity analysis    

发展中的化学工程与天律大学的化工教育及科研基地

王静康,余国琮

《中国工程科学》 1999年 第1卷 第1期   页码 104-106

Preface to special issue on “Advanced Materials and Catalysis”

《化学科学与工程前沿(英文)》 2021年 第15卷 第6期   页码 1357-1359 doi: 10.1007/s11705-021-2119-x

Discussion on advanced manufacturing

WANG Xiankui

《机械工程前沿(英文)》 2007年 第2卷 第3期   页码 251-262 doi: 10.1007/s11465-007-0044-4

摘要: Advanced manufacturing consists of continuity of manufacturing, its broad sense, and the core of the manufacturing process. The technology of continuous manufacturing is discussed according to both historical and modern perspectives. The relationship between human development and manufacturing technology is also discussed. Manufacturing is a continuously evolving topic. It is not only the foundation and means of imagination, conception, the science, and the technology of material change, but also the expression of national economy, national defense, and the support industries. The broad sense of manufacturing theory, which extends the concept of manufacturing, is an important development in the 20th century. The sense is analyzed in connection with design, material forming theory, synthesis of manufacturing technology, manufacturing modes, life cycle of product, hardware and software, and support environment, etc. At the same time, the core action and the development of the theory and technology of process is also discussed. At the end of this paper, the development directions of mechanical manufacturing science and technology are mentioned.

关键词: development     national     manufacturing process     support environment     mechanical manufacturing    

降低树脂基碳纤维复合材料成本的工程途径

赵渠森

《中国工程科学》 2001年 第3卷 第9期   页码 21-28

摘要:

树脂基复合材料已在航空航天工业中获得广泛应用。当今复合材料的低成本已是广泛议题。文章从工程角度讨论降低成本的有效途径,它们是通过改善树脂韧性提高设计许用应变,尽可能实现结构整体性,采用混杂复合材料结构,应用树脂渗透成形工艺和电子束固化技术。

关键词: 买得起复合材料     BMI树脂     整体共固化结构     真空辅助树脂渗透    

Bevacizumab in combination with pemetrexed and platinum for elderly patients with advanced non-squamous

《医学前沿(英文)》 2022年 第16卷 第4期   页码 610-617 doi: 10.1007/s11684-021-0827-8

摘要: Bevacizumab, an anti-VEGF monoclonal antibody, has significantly improved the clinical outcomes of patients with advanced non-squamous NSCLC (ns-NSCLC). However, the safety and efficacy of bevacizumab for elderly patients with advanced NSCLC require further investigation. Thus, 59 patients were included in the present retrospective study, 22 patients in the bevacizumab plus pemetrexed and platinum (B+PP) group, and 37 patients in the pemetrexed and platinum (PP) group. For the entire cohort of patients, the median OS was 33.3 months, and the 1-year and 2-year overall survival rates were 88.5% and 67.8%, respectively. The median OS and 1-year and 2-year OS rates were 20.5 months, 70.3% and 0%, respectively, in the B+PP group and 33.4 months, 97.0% and 89.4%, respectively, in the PP group (P <0.001). The incidence of grade≥3 adverse events was higher in the B+PP group than in the PP group (27.3% vs. 10.8%, respectively; P=0.204). Univariate and multivariate analyses suggested that the receipt of≥5 cycles of first-line chemotherapy was an independent favorable prognostic factor for OS, whereas the addition of bevacizumab was an unfavorable prognostic factor. With increased toxicities, the addition of bevacizumab to PP does not improve the overall survival of elderly patients with advanced ns-NSCLC.

关键词: bevacizumab     elderly patient     advanced non-small-cell lung cancer     overall survival     toxicity    

Occurrence and fate of antibiotics in advanced wastewater treatment facilities and receiving rivers in

Xinwei LI,Hanchang SHI,Kuixiao LI,Liang ZHANG,Yiping GAN

《环境科学与工程前沿(英文)》 2014年 第8卷 第6期   页码 888-894 doi: 10.1007/s11783-014-0735-0

摘要: The occurrence and removal of 13 antibiotics were investigated in five wastewater treatment plants (WWTPs) with advanced wastewater treatment processes in Beijing, China. Most of the target antibiotics were detected in the secondary and tertiary effluents, with the concentrations of 4.8–1106.0 and 0.3–505.0 ng·L . Fluoroquinolone antibiotics showed relatively high concentrations in all samples (782–1814 ng·L ). Different tertiary treatment processes showed discrepant antibiotics removal performances. Ozonation process was found more effective in removing target antibiotics compared to the coagulation-flocculation-sedimentation process and sand filtration process. Investigation of the target antibiotics in three typical urban rivers in Beijing was carried out to understand antibiotics occurrence in surface water environment. Eight antibiotics were detected in the studied rivers, with highest concentration of antibiotics in the river which was mainly replenished by reclaimed water. This study showed the necessity of employing more effective advanced treatment facilities to further reduce the discharge amount of antibiotics.

关键词: antibiotics     advanced treatment     urban river     reclaimed water    

Liquid metal material genome: Initiation of a new research track towards discovery of advanced energy

Lei WANG, Jing LIU

《能源前沿(英文)》 2013年 第7卷 第3期   页码 317-332 doi: 10.1007/s11708-013-0271-9

摘要: As the basis of modern industry, the roles materials play are becoming increasingly vital in this day and age. With many superior physical properties over conventional fluids, the low melting point liquid metal material, especially room-temperature liquid metal, is recently found to be uniquely useful in a wide variety of emerging areas from energy, electronics to medical sciences. However, with the coming enormous utilization of such materials, serious issues also arise which urgently need to be addressed. A biggest concern to impede the large scale application of room-temperature liquid metal technologies is that there is currently a strong shortage of the materials and species available to meet the tough requirements such as cost, melting point, electrical and thermal conductivity, etc. Inspired by the Material Genome Initiative as issued in 2011 by the United States of America, a more specific and focused project initiative was proposed in this paper—the liquid metal material genome aimed to discover advanced new functional alloys with low melting point so as to fulfill various increasing needs. The basic schemes and road map for this new research program, which is expected to have a worldwide significance, were outlined. The theoretical strategies and experimental methods in the research and development of liquid metal material genome were introduced. Particularly, the calculation of phase diagram (CALPHAD) approach as a highly effective way for material design was discussed. Further, the first-principles (FP) calculation was suggested to combine with the statistical thermodynamics to calculate the thermodynamic functions so as to enrich the CALPHAD database of liquid metals. When the experimental data are too scarce to perform a regular treatment, the combination of FP calculation, cluster variation method (CVM) or molecular dynamics (MD), and CALPHAD, referred to as the mixed FP-CVM-CALPHAD method can be a promising way to solve the problem. Except for the theoretical strategies, several parallel processing experimental methods were also analyzed, which can help improve the efficiency of finding new liquid metal materials and reducing the cost. The liquid metal material genome proposal as initiated in this paper will accelerate the process of finding and utilization of new functional materials.

关键词: liquid metal material genome     energy material     material discovery     advanced material     room-temperature liquid alloy     thermodynamics     phase diagram    

Bridging the gap: Neuro-Symbolic Computing for advanced AI applications in construction

《工程管理前沿(英文)》   页码 727-735 doi: 10.1007/s42524-023-0266-0

摘要: Deep Learning (DL) has revolutionized the field of Artificial Intelligence (AI) in various domains such as computer vision (CV) and natural language processing. However, DL models have limitations including the need for large labeled datasets, lack of interpretability and explainability, potential bias and fairness issues, and limitations in common sense reasoning and contextual understanding. On the other side, DL has shown significant potential in construction for safety and quality inspection tasks using CV models. However, current CV approaches may lack spatial context and measurement capabilities, and struggle with complex safety and quality requirements. The integration of Neuro-Symbolic Computing (NSC), an emerging field that combines DL and symbolic reasoning, has been proposed as a potential solution to address these limitations. NSC has the potential to enable more robust, interpretable, and accurate AI systems in construction by harnessing the strengths of DL and symbolic reasoning. The combination of symbolism and connectionism in NSC can lead to more efficient data usage, improved generalization ability, and enhanced interpretability. Further research and experimentation are needed to effectively integrate NSC with large models and advance CV technologies for precise reporting of safety and quality inspection results in construction.

关键词: advanced AI in construction     safety and quality inspection     Neuro-Symbolic Computing     Deep Learning     computer vision    

Latest advances in ionic liquids promoted synthesis and application of advanced biomass materials

《化学科学与工程前沿(英文)》 2023年 第17卷 第7期   页码 798-816 doi: 10.1007/s11705-023-2316-x

摘要: The utilization of sustainable resources provides a path to relieving the problem of dependence on fossil resources. In this context, biomass materials have become a feasible substitute for petroleum-based materials. The development of biomass materials is booming and advanced biomass materials with various functional properties are used in many fields including medicine, electrochemistry, and environmental science. In recent years, ionic liquids have been widely used in biomass pretreatments and processing owing to their “green” characteristics and adjustable physicochemical properties. Thus, the effects of ionic liquids in biomass materials generation require further study. This review summarizes the multiple roles of ionic liquids in promoting the synthesis and application of advanced biomass materials as solvents, structural components, and modifiers. Finally, a prospective approach is proposed for producing additional higher-quality possibilities between ionic liquids and advanced biomass materials.

关键词: biomass materials     functional materials     ionic liquids     synthesis     structure-property relationship    

Increasing significance of advanced physical/chemical processes in the development and application of

RULKENS Wim

《环境科学与工程前沿(英文)》 2008年 第2卷 第4期   页码 385-396 doi: 10.1007/s11783-008-0073-1

摘要: The awareness of the problem of the scarcity of water of high quality has strongly changed the approach of wastewater treatment. Currently, there is an increasing need for the beneficial reuse of treated wastewater and to recover valuable products and energy from the wastewater. Because microbiological treatment methods are, only to a limited part, able to satisfy these needs, the role and significance of physical/chemical processes in wastewater treatment are gaining more and more interest. The specific future role and aim of the various physical/chemical treatment processes can be categorized in five groups: improvement of the performance of microbiological treatment processes, achievement of the high quality required for reuse of the effluent, recovery of valuable components and energy from the wastewater for beneficial reuse, desalination of brackish water and seawater, and treatment of concentrated liquid or solid waste residues produced in a wastewater treatment process. Development of more environmentally sustainable wastewater treatment chains in which physical/chemical processes play a crucial role, also requires application of process control and modeling strategies. This is briefly introduced by the elaboration of treatment scenarios for three specific wastewaters.

关键词: control     beneficial     valuable     scarcity     Development    

Regulating surface chemistry of separator with LiF for advanced Li-S batteries

《能源前沿(英文)》 2022年 第16卷 第4期   页码 601-606 doi: 10.1007/s11708-021-0759-7

摘要: Lithium-sulfur (Li-S) batteries have attracted intensive attention owing to their ultrahigh theoretical energy density. Nevertheless, the practical application of Li-S batteries is prevented by uncontrollable shuttle effect and retarded reaction kinetics. To address the above issues, lithium fluoride (LiF) was employed to regulate the surface chemistry of routine separator. The functional separator demonstrates a great ability to suppress active S loss and protect lithium anode. This work provides a facile strategy for the development of advanced Li-S batteries.

关键词: Li-S batteries     LiF     functional separator    

标题 作者 时间 类型 操作

Preface to special issue on “Engineering Nanostructured Materials for Advanced Energy and Environmental

期刊论文

Influence of advanced engineering measures on displacement and stress field of surrounding rock in tunnels

期刊论文

Protein microspheres for pulmonary drug delivery

Yongda SUN,

期刊论文

Concrete corrosion in wastewater systems: Prediction and sensitivity analysis using advanced extreme

Mohammad ZOUNEMAT-KERMANI, Meysam ALIZAMIR, Zaher Mundher YASEEN, Reinhard HINKELMANN

期刊论文

发展中的化学工程与天律大学的化工教育及科研基地

王静康,余国琮

期刊论文

Preface to special issue on “Advanced Materials and Catalysis”

期刊论文

Discussion on advanced manufacturing

WANG Xiankui

期刊论文

降低树脂基碳纤维复合材料成本的工程途径

赵渠森

期刊论文

Bevacizumab in combination with pemetrexed and platinum for elderly patients with advanced non-squamous

期刊论文

Occurrence and fate of antibiotics in advanced wastewater treatment facilities and receiving rivers in

Xinwei LI,Hanchang SHI,Kuixiao LI,Liang ZHANG,Yiping GAN

期刊论文

Liquid metal material genome: Initiation of a new research track towards discovery of advanced energy

Lei WANG, Jing LIU

期刊论文

Bridging the gap: Neuro-Symbolic Computing for advanced AI applications in construction

期刊论文

Latest advances in ionic liquids promoted synthesis and application of advanced biomass materials

期刊论文

Increasing significance of advanced physical/chemical processes in the development and application of

RULKENS Wim

期刊论文

Regulating surface chemistry of separator with LiF for advanced Li-S batteries

期刊论文