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Zeolitic imidazolate framework-8 (ZIF-8) for drug delivery: A critical review

Simin Feng, Xiaoli Zhang, Dunyun Shi, Zheng Wang

《化学科学与工程前沿(英文)》 2021年 第15卷 第2期   页码 221-237 doi: 10.1007/s11705-020-1927-8

摘要: Zeolitic imidazolate framework-8 (ZIF-8), composed of Zn ions and imidazolate ligands, is a class of metal-organic frameworks, which possesses a similar structure as conventional aluminosilicate zeolites. This material exhibits inherent porous property, high loading capacity, and pH-sensitive degradation, as well as exceptional thermal and chemical stability. Extensive research effort has been devoted to relevant research aspects ranging from synthesis methods, property characterization to potential applications of ZIF-8. This review focuses on the recent development of ZIF-8 synthesis methods and its promising applications in drug delivery. The potential risks of using ZIF-8 for drug delivery are also summarized.

关键词: zeolitic imidazolate framework-8 (ZIF-8)     synthesis methods     applications     drug delivery    

A review of optimization modeling and solution methods in renewable energy systems

《工程管理前沿(英文)》   页码 640-671 doi: 10.1007/s42524-023-0271-3

摘要: The advancement of renewable energy (RE) represents a pivotal strategy in mitigating climate change and advancing energy transition efforts. A current of research pertains to strategies for fostering RE growth. Among the frequently proposed approaches, employing optimization models to facilitate decision-making stands out prominently. Drawing from an extensive dataset comprising 32806 literature entries encompassing the optimization of renewable energy systems (RES) from 1990 to 2023 within the Web of Science database, this study reviews the decision-making optimization problems, models, and solution methods thereof throughout the renewable energy development and utilization chain (REDUC) process. This review also endeavors to structure and assess the contextual landscape of RES optimization modeling research. As evidenced by the literature review, optimization modeling effectively resolves decision-making predicaments spanning RE investment, construction, operation and maintenance, and scheduling. Predominantly, a hybrid model that combines prediction, optimization, simulation, and assessment methodologies emerges as the favored approach for optimizing RES-related decisions. The primary framework prevalent in extant research solutions entails the dissection and linearization of established models, in combination with hybrid analytical strategies and artificial intelligence algorithms. Noteworthy advancements within modeling encompass domains such as uncertainty, multienergy carrier considerations, and the refinement of spatiotemporal resolution. In the realm of algorithmic solutions for RES optimization models, a pronounced focus is anticipated on the convergence of analytical techniques with artificial intelligence-driven optimization. Furthermore, this study serves to facilitate a comprehensive understanding of research trajectories and existing gaps, expediting the identification of pertinent optimization models conducive to enhancing the efficiency of REDUC development endeavors.

关键词: renewable energy system     bibliometrics     mathematical programming     optimization models     solution methods    

Intelligent methods for the process parameter determination of plastic injection molding

Huang GAO, Yun ZHANG, Xundao ZHOU, Dequn LI

《机械工程前沿(英文)》 2018年 第13卷 第1期   页码 85-95 doi: 10.1007/s11465-018-0491-0

摘要:

Injection molding is one of the most widely used material processing methods in producing plastic products with complex geometries and high precision. The determination of process parameters is important in obtaining qualified products and maintaining product quality. This article reviews the recent studies and developments of the intelligent methods applied in the process parameter determination of injection molding. These intelligent methods are classified into three categories: Case-based reasoning methods, expert system-based methods, and data fitting and optimization methods. A framework of process parameter determination is proposed after comprehensive discussions. Finally, the conclusions and future research topics are discussed.

关键词: injection molding     intelligent methods     process parameters     optimization    

开放的深井开采复杂巨系统中岩爆灾害研究方法

贾明涛,潘长良,王李管

《中国工程科学》 2003年 第5卷 第6期   页码 74-78

摘要:

岩爆是深井开采中的主要灾害之一。随着我国矿床开采由地表、浅部向深部转移,这一问题变得日益突出,传统的关于深井开采过程中岩爆问题的研究,由于没有或较少考虑系统整体性,按照还原论的方法进行,取得的成果与实际应用之间尚存在较大距离。文章通过对深井开采系统特征的分析研究,提出深井开采系统是一个典型的开放的复杂巨系统。对于这种系统的研究,目前行之有效的方法是采用从定性到定量的综合集成方法,将专家群体(包括地质专家、采矿专家、系统工程专家、计算机专家、岩石力学专家等)、统计数据和信息资料、计算机技术三者有机结合起来,构成一个高度智能化的以人为主、人机结合的交互系统。通过集成各种知识,获得对问题的正确的认识和理解,才能在工程实践中发挥具体的指导作用。

关键词: 深井开采     开放的复杂巨系统     岩爆     从定性到定量的综合集成方法    

Cyber–Physical Power System (CPPS): A review on measures and optimization methods of system resilience

《工程管理前沿(英文)》 2021年 第8卷 第4期   页码 503-518 doi: 10.1007/s42524-021-0163-3

摘要: The Cyber–Physical Power System (CPPS) is one of the most critical infrastructure systems in a country because a stable and secure power supply is a key foundation for national and social development. In recent years, resilience has become a major topic in preventing and mitigating the risks caused by large-scale blackouts of CPPSs. Accordingly, the concept and significance of CPPS resilience are at first explained from the engineering perspective in this study. Then, a review of representative quantitative assessment measures of CPPS resilience applied in the existing literature is provided. On the basis of these assessment measures, the optimization methods of CPPS resilience are reviewed from three perspectives, which are mainly focused on the current research, namely, optimizing the recovery sequence of components, identifying and protecting critical nodes, and enhancing the coupling patterns between physical and cyber networks. The recent advances in modeling methods for cascading failures within the CPPS, which is the theoretical foundation for the resilience assessment and optimization research of CPPSs, are also presented. Lastly, the challenges and future research directions for resilience optimizing of CPPSs are discussed.

关键词: Cyber–Physical Power System     resilience assessment     resilience optimization     cascading failure modeling    

From Green to Sustainability—Trends in the Assessment Methods of Green Buildings

Steve Hsueh-Ming Wang,Paula Williams,Jing Shi,Huojun Yang

《工程管理前沿(英文)》 2015年 第2卷 第2期   页码 114-121 doi: 10.15302/J-FEM-2015018

摘要: This research investigates recent developments in assessment methods of green buildings and compares the differences in rating systems among the United Kingdom, USA, and Germany. There are indications that the rating systems are moving from green buildings to sustainable buildings. In order to understand the recent research in academic areas, we survey the recent Ph.D. dissertations and literature related to green building assessment. Discussion is provided on the major research areas of green buildings, which cover accountability of life cycle cost, methodology for balancing the three pillars, and government vision and public policy.

关键词: green     sustainability     buildings     assessment     methods     rating systems    

Edge preparation methods for cutting tools: a review

《机械工程前沿(英文)》 2023年 第18卷 第4期 doi: 10.1007/s11465-023-0766-y

摘要: Edge preparation can remove cutting edge defects, such as burrs, chippings, and grinding marks, generated in the grinding process and improve the cutting performance and service life of tools. Various edge preparation methods have been proposed for different tool matrix materials, geometries, and application requirements. This study presents a scientific and systematic review of the development of tool edge preparation technology and provides ideas for its future development. First, typical edge characterization methods, which associate the microgeometric characteristics of the cutting edge with cutting performance, are briefly introduced. Then, edge preparation methods for cutting tools, in which materials at the cutting edge area are removed to decrease defects and obtain a suitable microgeometry of the cutting edge for machining, are discussed. New edge preparation methods are explored on the basis of existing processing technologies, and the principles, advantages, and limitations of these methods are systematically summarized and analyzed. Edge preparation methods are classified into two categories: mechanical processing methods and nontraditional processing methods. These methods are compared from the aspects of edge consistency, surface quality, efficiency, processing difficulty, machining cost, and general availability. In this manner, a more intuitive understanding of the characteristics can be gained. Finally, the future development direction of tool edge preparation technology is prospected.

关键词: edge preparation method     preparation principle     cutting edge geometry     edge characterization     tool performance    

A review of measurement methods for peracetic acid (PAA)

Chen Cheng, Haodong Li, Jinling Wang, Hualin Wang, Xuejing Yang

《环境科学与工程前沿(英文)》 2020年 第14卷 第5期 doi: 10.1007/s11783-020-1266-5

摘要: Abstract • Physical and chemical properties and application of peracetic acid solution. • Determination method of high concentration peracetic acid. • Determination method of residual peracetic acid (low concentration). Peroxyacetic acid has been widely used in food, medical, and synthetic chemical fields for the past several decades. Recently, peroxyacetic acid has gradually become an effective alternative disinfectant in wastewater disinfection and has strong redox capacity for removing micro-pollutants from drinking water. However, commercial peroxyacetic acid solutions are primarily multi-component mixtures of peroxyacetic acid, acetic acid, hydrogen peroxide, and water. During the process of water treatment, peroxyacetic acid and hydrogen peroxide (H2O2) often coexist, which limits further investigation on the properties of peroxyacetic acid. Therefore, analytical methods need to achieve a certain level of selectivity, particularly when peroxyacetic acid and hydrogen peroxide coexist. This review summarizes the measurement and detection methods of peroxyacetic acid, comparing the principle, adaptability, and relative merits of these methods.

关键词: Peroxyacetic acid     Measurement methods     Titration     Colorimetric     Chromatography     NMR    

Comparative cost analysis of three different anesthesia methods in gynecological laparoscopic surgery

null

《医学前沿(英文)》 2012年 第6卷 第3期   页码 311-316 doi: 10.1007/s11684-012-0205-7

摘要:

In the current study, we assessed and evaluated the costs and benefits of three popular methods of general anesthesia practiced in our department for gynecological laparoscopic surgery in recent years. Sixty adult female patients who underwent elective gynecological laparoscopic surgery under general anesthesia were randomly divided into three groups: group V, group I and group C. In group V, anesthesia was induced intravenously with midazolam, remifentanil, propofol and vecuronium, and maintained with continuous infusion of propofol and remifentanil. In group I, anesthesia was intravenously induced with midazolam, fentanyl, propofol and vecuronium, and maintained with inhaled isoflurane and intravenous bonus of fentanyl. In group C, anesthesia was induced as in group I, but maintained with isoflurane inhalation combined with propofol-remifentanil infusion. All patients received vecuronium for muscle relaxation. Perioperative incidences of complications and total anesthesia costs for patients in all groups were recorded. In addition, postoperative satisfaction of the patients was also noted, and similar outcomes of the satisfaction were reported in all 60 patients. Although there was no statistical significance among groups, the incidence of postoperative nausea and vomiting were higher in group C, and the rates of shivering and the needs for analgesics were higher in group V. Anesthesia costs in group I were the lowest. Therefore, it is concluded that the costs of anesthesia induced with midazolam, fentanyl, propofol, vecuronium, and maintained with isoflurane, fentanyl and vecuronium are cheapest, and there is no significant difference in patients’ satisfaction and safety among the three above-mentioned methods of anesthesia in our department.

关键词: general anesthesia     economics     cost    

Behavioral methods for the functional assessment of hair cells in zebrafish

null

《医学前沿(英文)》 2017年 第11卷 第2期   页码 178-190 doi: 10.1007/s11684-017-0507-x

摘要:

Zebrafish is an emerging animal model for studies on auditory system. This model presents high comparability with humans, good accessibility to the hearing organ, and high throughput capacity. To better utilize this animal model, methodologies need to be used to quantify the hearing function of the zebrafish. Zebrafish displays a series of innate and robust behavior related to its auditory function. Here, we reviewed the advantage of using zebrafish in auditory research and then introduced three behavioral tests, as follows: the startle response, the vestibular-ocular reflex, and rheotaxis. These tests are discussed in terms of their physiological characteristics, up-to-date technical development, and apparatus description. Test limitation and areas to improve are also introduced. Finally, we revealed the feasibility of these applications in zebrafish behavioral assessment and their potential in the high-throughput screening on hearing-related genes and drugs.

关键词: zebrafish (Danio rerio)     behavior     auditory     startle response     vestibular-ocular reflex     rheotaxis    

Automated synthesis of steady-state continuous processes using reinforcement learning

《化学科学与工程前沿(英文)》 2022年 第16卷 第2期   页码 288-302 doi: 10.1007/s11705-021-2055-9

摘要: Automated flowsheet synthesis is an important field in computer-aided process engineering. The present work demonstrates how reinforcement learning can be used for automated flowsheet synthesis without any heuristics or prior knowledge of conceptual design. The environment consists of a steady-state flowsheet simulator that contains all physical knowledge. An agent is trained to take discrete actions and sequentially build up flowsheets that solve a given process problem. A novel method named SynGameZero is developed to ensure good exploration schemes in the complex problem. Therein, flowsheet synthesis is modelled as a game of two competing players. The agent plays this game against itself during training and consists of an artificial neural network and a tree search for forward planning. The method is applied successfully to a reaction-distillation process in a quaternary system.

关键词: automated process synthesis     flowsheet synthesis     artificial intelligence     machine learning     reinforcement learning    

Computational methods for fracture in rock: a review and recent advances

Ali JENABIDEHKORDI

《结构与土木工程前沿(英文)》 2019年 第13卷 第2期   页码 273-287 doi: 10.1007/s11709-018-0459-5

摘要: We present an overview of the most popular state-of-the-art computational methods available for modelling fracture in rock. The summarized numerical methods can be classified into three categories: Continuum Based Methods, Discrete Crack Approaches, and Block-Based Methods. We will not only provide an extensive review of those methods which can be found elsewhere but particularly address their potential in modelling fracture in rock mechanics and geotechnical engineering. In this context, we will discuss their key applications, assumptions, and limitations. Furthermore, we also address ‘general’ difficulties that may arise for simulating fracture in rock and fractured rock. This review will conclude with some final remarks and future challenges.

关键词: numerical modelling     method development     rock mechanics     fractured rock     rock fracturing    

Performance of seven highway construction contracting methods analyzed by project size

Yuanxin ZHANG, Abdol CHINI, R. Edward MINCHIN Jr., Lourdes PTSCHELINZEW, Dev SHAH

《工程管理前沿(英文)》 2018年 第5卷 第2期   页码 240-250 doi: 10.15302/J-FEM-2018040

摘要: The conventional Design-Bid-Build (DBB) construction contracting method has had various drawbacks exposed in highway construction practice, including lack of communication, inefficient design, antagonizing relationships, and increased disputes. To mitigate the negative aspects of DBB, several alternative contracting methods and alternative project delivery systems have been devised and introduced to the industry over the past 30 years. Five such innovations were tested by a research team from the University of Florida under the sponsorship of the Florida Department of Transportation (FDOT). To perform a realistic assessment, this study categorized FDOT projects built between 2006 and 2015 into groups according to current contract amounts. Both absolute and relative metrics were defined and employed. For comparison purposes, a collective analysis on all gathered data was performed. Additionally, the influence of outliers on the results was examined. The results showed that analyses based on individual cost categories are more convincing because large projects tend to impose stronger influence on the analyses. In addition, outliers must be identified and screened to reach realistic and reliable conclusions. With regard to the actual performance of the contracting methods, each performs differently within different cost categories.

关键词: alternative contracting methods     time     cost     performance evaluation    

Quorum sensing regulation methods and their effects on biofilm in biological waste treatment systems:

《环境科学与工程前沿(英文)》 2022年 第16卷 第7期 doi: 10.1007/s11783-021-1495-2

摘要:

• Quorum sensing enhancement and inhibition methods are summarized.

关键词: Quorum sensing     Biological waste treatment     Biofilm formation    

High-order moment methods for LRFD including random variables with unknown probability distributions

Zhao-Hui LU, Yan-Gang ZHAO, Zhi-Wu YU

《结构与土木工程前沿(英文)》 2013年 第7卷 第3期   页码 288-295 doi: 10.1007/s11709-013-0210-1

摘要: The reliability-based load and resistance factors design (LRFD) has been widely used in the structural design codes. In almost all of the current reliability methods for the determination of the load and resistance factors, the basic random variables are assumed to have known probability distributions. However, in reality, the probability distributions of some of the basic random variables are often unknown due to the lack of statistical data. In this paper, the high-order moment methods for LRFD including random variables with unknown probability distributions are proposed. From the investigation of the present paper, it can be concluded that: 1) The load and resistance factors can be determined even when the probability distributions of the basic random variables are unknown; 2) The present method is convenient and more effective in estimating the load and resistance factors in practical engineering since it needs neither the iterative computation of derivatives nor any design points; 3) In the applicable range of the high-order moment method, although the load and resistance factors obtained by the proposed method may be different from those obtained by first order reliability method (FORM), the target mean resistances obtained by both methods are essentially the same.

关键词: high-order moment methods     applicable range     load and resistance factors     target mean resistance    

标题 作者 时间 类型 操作

Zeolitic imidazolate framework-8 (ZIF-8) for drug delivery: A critical review

Simin Feng, Xiaoli Zhang, Dunyun Shi, Zheng Wang

期刊论文

A review of optimization modeling and solution methods in renewable energy systems

期刊论文

Intelligent methods for the process parameter determination of plastic injection molding

Huang GAO, Yun ZHANG, Xundao ZHOU, Dequn LI

期刊论文

开放的深井开采复杂巨系统中岩爆灾害研究方法

贾明涛,潘长良,王李管

期刊论文

Cyber–Physical Power System (CPPS): A review on measures and optimization methods of system resilience

期刊论文

From Green to Sustainability—Trends in the Assessment Methods of Green Buildings

Steve Hsueh-Ming Wang,Paula Williams,Jing Shi,Huojun Yang

期刊论文

Edge preparation methods for cutting tools: a review

期刊论文

A review of measurement methods for peracetic acid (PAA)

Chen Cheng, Haodong Li, Jinling Wang, Hualin Wang, Xuejing Yang

期刊论文

Comparative cost analysis of three different anesthesia methods in gynecological laparoscopic surgery

null

期刊论文

Behavioral methods for the functional assessment of hair cells in zebrafish

null

期刊论文

Automated synthesis of steady-state continuous processes using reinforcement learning

期刊论文

Computational methods for fracture in rock: a review and recent advances

Ali JENABIDEHKORDI

期刊论文

Performance of seven highway construction contracting methods analyzed by project size

Yuanxin ZHANG, Abdol CHINI, R. Edward MINCHIN Jr., Lourdes PTSCHELINZEW, Dev SHAH

期刊论文

Quorum sensing regulation methods and their effects on biofilm in biological waste treatment systems:

期刊论文

High-order moment methods for LRFD including random variables with unknown probability distributions

Zhao-Hui LU, Yan-Gang ZHAO, Zhi-Wu YU

期刊论文