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CO2 capture using membrane contactors: a systematic literature review

Sanaa Hafeez, Tayeba Safdar, Elena Pallari, George Manos, Elsa Aristodemou, Zhien Zhang, S. M. Al-Salem, Achilleas Constantinou

《化学科学与工程前沿(英文)》 2021年 第15卷 第4期   页码 720-754 doi: 10.1007/s11705-020-1992-z

摘要: With fossil fuel being the major source of energy, CO emission levels need to be reduced to a minimal amount namely from anthropogenic sources. Energy consumption is expected to rise by 48% in the next 30 years, and global warming is becoming an alarming issue which needs to be addressed on a thorough technical basis. Nonetheless, exploring CO capture using membrane contactor technology has shown great potential to be applied and utilised by industry to deal with post- and pre-combustion of CO . A systematic review of the literature has been conducted to analyse and assess CO removal using membrane contactors for capturing techniques in industrial processes. The review began with a total of 2650 papers, which were obtained from three major databases, and then were excluded down to a final number of 525 papers following a defined set of criteria. The results showed that the use of hollow fibre membranes have demonstrated popularity, as well as the use of amine solvents for CO removal. This current systematic review in CO removal and capture is an important milestone in the synthesis of up to date research with the potential to serve as a benchmark databank for further research in similar areas of work. This study provides the first systematic enquiry in the evidence to research further sustainable methods to capture and separate CO .

关键词: CO2 capture     preferred reporting items for systematic reviews and meta-analyses     membrane contactor     absorbent    

Effect of traditional Chinese medicine combined with Western therapy on primary hepatic carcinoma: a systematicreview with meta-analysis

null

《医学前沿(英文)》 2017年 第11卷 第2期   页码 191-202 doi: 10.1007/s11684-017-0512-0

摘要:

Primary hepatic carcinoma (PHC) is a common malignant tumor in China. Cancer is comprehensively treated with various therapeutic regimes, including traditional Chinese medicine (TCM). TCM has been widely used to improve the quality of life, delay the time of cancer progression, and prolong the median survival time. This systematic review with meta-analysis aimed to assess the effect of TCM combined with Western therapy on primary hepatic carcinoma. A comprehensive literature search was conducted in six databases, including CNKI, VIP, Wan-Fang Database, CBM, PubMed, and Cochrane library. A total of 44 randomized controlled trials (RCTs) involving 3429 participants suffering from PHC were selected. Meta-analysis results indicated that the overall effect of TCM and Western integrative treatment on PHC was higher than that of Western intervention alone, which can postpone tumor recurrence and metastasis and prolong the overall survival time of patients with PHC. Although the obtained evidence remained weak because of the poor methodological quality of the included studies, this review provided relevant data supporting the efficacy and safety of TCM combined with Western therapies. In future research, individual RCT studies should incorporate accepted standards for trial design and reporting, proper outcome indicators according to international standards, blinding in allocation concealment, and valid follow-up periods.

关键词: traditional Chinese medicine     primary hepatic carcinoma     meta-analysis    

Scientific publications on systematic review and meta-analysis from Chinese authors: a 10-year survey

null

《医学前沿(英文)》 2012年 第6卷 第1期   页码 94-99 doi: 10.1007/s11684-012-0181-y

摘要:

Systematic reviews and meta-analyses are playing an increasingly important role in clinical research and practice. This study aimed to measure the scientific production of systematic review and meta-analysis from the three major regions of China: the Mainland (ML), Hong Kong (HK), and Taiwan (TW). English articles on systematic review and meta-analysis from ML, HK, and TW from 2001 to 2010 were retrieved from the PubMed database. The total number of articles, impact factors (IF), and articles published in high-impact journals were conducted for quantity and quality comparisons among the three regions. There were 1 587 published articles from ML (1 292), HK (203), and TW (92) during the past ten years. The annual total numbers of articles in the three regions increased significantly from 2001 to 2010 (from 13 to 677). The number of articles from ML has exceeded that from TW since 2001, and surpassed that from HK in 2003. The accumulated IF of articles from ML (3 488.24) was higher than those from HK (493.16) and TW (216.39). HK had the highest average IF of 3.31, followed by ML of 2.90 and TW of 2.85. Researchers from HK published a larger proportion of papers in high-impact journals than those from ML and TW. The Cochrane Database of Systematic Reviews was the most popular journal in China. Chinese authors have been very active to enhance the systematic review and meta-analysis research over the past ten years, especially in ML. The gap between ML and the other two regions has been narrowed. But there is still considerable room for Chinese authors to improve their studies on systematic review and meta-analysis.

关键词: systematic review     meta-analysis     China     Chinese     impact factor    

益生菌辅助治疗类风湿关节炎的益处:随机对照临床试验荟萃分析和系统综述 Article

潘胡丹, 李润泽, 李婷, 王俊, 刘良

《工程(英文)》 2017年 第3卷 第1期   页码 115-121 doi: 10.1016/J.ENG.2017.01.006

摘要:

肠道和口腔菌群是影响类风湿关节炎(rheumatoid arthritis, 简称类风关) 发生、发展的重要因素。近年来的研究表明益生菌可改善实验性大鼠关节炎,但益生菌辅助治疗类风关的临床疗效尚未定论。本研究旨在对益生菌辅助治疗类风关的研究报告进行荟萃分析,为益生菌辅助治疗类风关提供临床证据。我们将符合随机对照临床试验标准的文献报告纳入荟萃分析内容,分益生菌辅助治疗组(治疗组) 和非益生菌辅助治疗组(对照组) 进行比较,两者均使用缓解风湿病情药物(DMARDs)。采用Review Manager 5.3.3 对6 个随机对照临床试验报告共246 例患者进行荟萃分析,结果表明,治疗组与对照组在关节炎病情缓解指数ACR20 和DAS28 评分方面的差异无显著意义,但益生菌辅助治疗能显著降低C 反应蛋白、致炎性细胞因子肿瘤坏死因子–α 和白介素–1β 的表达,同时使IL-10的表达上升。通过对益生菌治疗类风关的综合作用进行系统评估,我们发现益生菌辅助治疗类风关是有益的。但是,目前缺乏高质量的临床试验报告,需要开展更多的多中心、大样本、双盲、随机对照临床试验。

关键词: 类风湿关节炎     临床试验     益生菌辅助     系统综述     荟萃分析    

Towards a respondent-preferred ki-anonymity model

Kok-Seng WONG,Myung Ho KIM

《信息与电子工程前沿(英文)》 2015年 第16卷 第9期   页码 720-731 doi: 10.1631/FITEE.1400395

摘要: Recently, privacy concerns about data collection have received an increasing amount of attention. In data collection process, a data collector (an agency) assumed that all respondents would be comfortable with submitting their data if the published data was anonymous. We believe that this assumption is not realistic because the increase in privacy concerns causes some respondents to refuse participation or to submit inaccurate data to such agencies. If respondents submit inaccurate data, then the usefulness of the results from analysis of the collected data cannot be guaranteed. Furthermore, we note that the level of anonymity (i.e., -anonymity) guaranteed by an agency cannot be verified by respondents since they generally do not have access to all of the data that is released. Therefore, we introduce the notion of -anonymity, where is the level of anonymity preferred by each respondent . Instead of placing full trust in an agency, our solution increases respondent confidence by allowing each to decide the preferred level of protection. As such, our protocol ensures that respondents achieve their preferred -anonymity during data collection and guarantees that the collected records are genuine and useful for data analysis.

关键词: Anonymous data collection     Respondent-preferred privacy protection     k-anonymity    

Consolidated standards of reporting trials (CONSORT) for traditional Chinese medicine: current situation

Zhaoxiang Bian, Baoyan Liu, David Moher, Taixiang Wu, Youping Li, Hongcai Shang, Chungwah Cheng

《医学前沿(英文)》 2011年 第5卷 第2期   页码 171-177 doi: 10.1007/s11684-011-0132-z

摘要: The reporting standards for randomized controlled trials were first published in 1996 by a group of scientists under the name “CONSORT,” which means consolidated standards of reporting trials. Revisions followed in 2001 and 2010. A draft of the CONSORT for traditional Chinese medicine (TCM) was published in both Chinese and English in 2007. After publication of the draft, comments were solicited from the medical community. Some papers did raise concerns about which items should be included in the CONSORT for TCM such as the rationale of the trial design, intervention, outcome assessment, and adverse events. We have now reached the next step which is the finalization of the CONSORT for TCM. Three tasks remain. First, the major changes in CONSORT statement 2010 should be integrated into the CONSORT for TCM. Second, Chinese drugs from minerals and animals should be included in the guidelines. Finally, agreement must be reached among the working groups. Once the draft is finalized, wide dissemination and co-publication will be considered.

关键词: CONSORT for TCM     reporting standards     future development    

A systematic literature review

《工程管理前沿(英文)》   页码 467-482 doi: 10.1007/s42524-023-0249-1

摘要: Social infrastructure has become an important element for measuring national economic development and social benefits that are usually financed in the form of government grants, private investment, and public‒private partnerships (PPPs). However, social infrastructure PPPs have attracted considerable public debate due to their low profitability and complex operational demands. This study aims to answer the question, “are PPPs still an answer for social infrastructure?”, from the perspectives of the body of knowledge, application status, and prospects. Initially, an iterative search and review procedure and a scientometric analysis were performed to systematically screen the literature and to structure the body of knowledge of the social infrastructure PPPs literature. Furthermore, the application status and trends were analyzed to further explore the studied countries/regions, application sectors, and research topics. Results show that PPPs still have valuable application potential for delivering social infrastructure despite their mixed results across different topics. Six main research themes and the corresponding research trends were also identified, namely, financing and economics viability, risk management, performance management, contract and relationship management, governance and regulation, and facilitating and hindering factors. These findings offer practitioners and researchers a comprehensive overview and constructive guidance on social infrastructure PPPs.

关键词: public‒private partnerships     social infrastructure     scientometric analysis     systematic review    

Strain localization analyses of idealized sands in biaxial tests by distinct element method

Mingjing JIANG, Hehua ZHU, Xiumei LI,

《结构与土木工程前沿(英文)》 2010年 第4卷 第2期   页码 208-222 doi: 10.1007/s11709-010-0025-2

摘要: This paper presents a numerical investigation on the strain localization of an idealized sand in biaxial compression tests using the distinct element method (DEM). In addition to the dilatancy and material frictional angle, the principal stress field, and distributions of void ratio, particle velocity, and the averaged pure rotation rate (APR) in the DEM specimen are examined to illustrate the link between microscopic and macroscopic variables in the case of strain localization. The study shows that strain localization of the granular material in the tests proceeds with localizations of void ratio, strain and APR, and distortions of stress field and force chains. In addition, both thickness and inclination of the shear band change with the increasing of axial strain, with the former valued around 10–14 times of mean grain diameter and the later overall described by the Mohr-Coulomb theory.

关键词: idealized sand     strain localization     numerical analyses     distinct element method (DEM)    

Exergy and exergoeconomic analyses for integration of aromatics separation with aromatics upgrading

《化学科学与工程前沿(英文)》 2023年 第17卷 第2期   页码 183-193 doi: 10.1007/s11705-022-2192-9

摘要: Methanol to aromatics produces multiple products, resulting in a limited selectivity of xylene. Aromatics upgrading is an effective way to produce more valuable xylene product, and different feed ratios generate discrepant product distributions. This work integrates the aromatics separation with toluene disproportionation, transalkylation of toluene and trimethylbenzene, and isomerization of xylene and trimethylbenzene. Exergy and exergoeconomic analyses are conducted to give insights in the splitting ratios of benzene, toluene and heavy aromatics for aromatics upgrading. First, a detailed simulation model is developed in Aspen HYSYS. Then, 300 splitting ratio sets of benzene and toluene for conversion are studied to investigate the process performances. The results indicate that there are different preferences for the splitting ratios of benzene and toluene in terms of exergy and exergoeconomic performances. The process generates lower total exergy destruction when the splitting ratio of toluene varies between 0.07 and 0.18, and that of benzene fluctuates between 0.55 and 0.6. Nevertheless, the process presents lower total product unit cost with the splitting ratio of toluene less than 0.18 and that of benzene fluctuating between 0.44 and 0.89. Besides, it is found that distillation is the biggest contributor to the total exergy destruction, accounting for 94.97%.

关键词: aromatics separation and upgrading     variant splitting ratios     total exergy destruction     total product unit cost    

A review of systematic evaluation and improvement in the big data environment

Feng YANG, Manman WANG

《工程管理前沿(英文)》 2020年 第7卷 第1期   页码 27-46 doi: 10.1007/s42524-020-0092-6

摘要: The era of big data brings unprecedented opportunities and challenges to management research. As one of the important functions of management decision-making, evaluation has been given more functions and application space. Exploring the applicable evaluation methods in the big data environment has become an important subject of research. The purpose of this paper is to provide an overview and discussion of systematic evaluation and improvement in the big data environment. We first review the evaluation methods based on the main analytic techniques of big data such as data mining, statistical methods, optimization and simulation, and deep learning. Focused on the characteristics of big data (association feature, data loss, data noise, and visualization), the relevant evaluation methods are given. Furthermore, we explore the systematic improvement studies and application fields. Finally, we analyze the new application areas of evaluation methods and give the future directions of evaluation method research in a big data environment from six aspects. We hope our research could provide meaningful insights for subsequent research.

关键词: big data     evaluation methods     systematic improvement     big data analytic techniques     data mining    

Quality Function Deployment Implementation in Construction: A Systematic Literature Review

Elizabeth A. Cudney,William L. Gillis

《工程管理前沿(英文)》 2016年 第3卷 第3期   页码 224-230 doi: 10.15302/J-FEM-2016036

摘要: The construction of new buildings represents a significant investment. The goal of new building construction is to maximize value and minimize cost while staying on time and within budget. Translating customer requirements into engineering terms for new construction design is vital for a construction project to be successful. Quality function deployment has been successfully used in product development to capture the voice of the customer and translate it into engineering characteristics. Quality function deployment then carries these parameters into production and service to ensure the voice of the customer is being met with the final product. The house of quality, a tool within quality function deployment, can provide a means for comparison of owner’s project requirements and the proposed design, along with identifying how the design decisions impact meeting customer requirements and green building requirements. Quality function deployment can effectively link the project phases through design and construction and into operations and maintenance to ensure the owner’s project requirements are met with the final building. This research identifies and categorizes studies of quality function deployment applications in construction. The research method used is a systematic literature review from databases related to quality function deployment in the construction industry published in the periodicals through 2016. The principal findings of implementations, practices, and integrated approaches are then summarized. This article intends to propel further research of quality function deployment in the construction sector.

关键词: construction     engineering management     quality function deployment     systematic review    

Numerical and experimental analyses of methane leakage in shield tunnel

《结构与土木工程前沿(英文)》   页码 1011-1020 doi: 10.1007/s11709-023-0956-z

摘要: Tunnels constructed in gas-bearing strata are affected by the potential leakage of harmful gases, such as methane gas. Based on the basic principles of computational fluid dynamics, a numerical analysis was performed to simulate the ventilation and diffusion of harmful gases in a shield tunnel, and the effect of ventilation airflow speed on the diffusion of harmful gases was evaluated. As the airflow speed increased from 1.8 to 5.4 m/s, the methane emission was diluted, and the methane accumulation was only observed in the area near the methane leakage channels. The influence of increased ventilation airflow velocity was dominant for the ventilation modes with two and four fans. In addition, laboratory tests on methane leakage through segment joints were performed. The results show that the leakage process can be divided into “rapid leakage” and “slight leakage”, depending on the leakage pressure and the state of joint deformation. Based on the numerical and experimental analysis results, a relationship between the safety level and the joint deformation is established, which can be used as guidelines for maintaining utility tunnels.

关键词: shield tunnel     harmful gas leakage     numerical analysis     laboratory test    

Cohesive zone model-based analyses of localized leakage of segmentally lined tunnels

《结构与土木工程前沿(英文)》 2023年 第17卷 第4期   页码 503-521 doi: 10.1007/s11709-023-0927-4

摘要: This paper presents a novel approach for simulating the localized leakage behavior of segmentally lined tunnels based on a cohesive zone model. The proposed approach not only simulates localized leakage at the lining segment, but also captures the hydromechanically coupled seepage behavior at the segmental joints. It is first verified via a tunnel drainage experiment, which reveals its merits over the existing local hydraulic conductivity method. Subsequently, a parametric study is conducted to investigate the effects of the aperture size, stratum permeability, and spatial distribution of drainage holes on the leakage behavior, stratum seepage field, and leakage-induced mechanical response of the tunnel lining. The proposed approach yields more accurate results than the classical local hydraulic conductivity method. Moreover, it is both computationally efficient and stable. Localized leakage leads to reduced local ground pressure, which further induces outward deformation near the leakage point and slight inward deformation at its diametrically opposite side. A localized stress arch spanning across the leakage point is observed, which manifests as the rotation of the principal stresses in the adjacent area. The seepage field depends on both the number and location of the leakage zones. Pseudostatic seepage zones, in which the seepage rate is significantly lower than that of the adjacent area, appear when multiple seepage zones are considered. Finally, the importance of employing the hydromechanical coupled mechanism at the segment joints is highlighted by cases of shallowly buried tunnels subjected to surface loading and pressure tunnels while considering internal water pressure.

关键词: segmentally lined tunnel     localized leakage     cohesive element     hydraulic behavior     numerical modeling    

Expert networks as science-policy interlocutors in the implementation of a monitoring reporting and verification

Remi CHANDRAN, Tsuyoshi FUJITA, Minoru FUJII, Shuichi ASHINA, Kei GOMI, Rizaldi BOER, Muhammad ARDIANSYAH, Seiya MAKI

《能源前沿(英文)》 2018年 第12卷 第3期   页码 376-388 doi: 10.1007/s11708-018-0559-x

摘要:

The Paris Agreement, which entered into effect in 2016, emphasizes a definite timeline for communicating and maintaining successive nationally determined contributions (NDCs) that it plans to achieve in addressing climate change. This calls for the development of a measurement, reporting and verification (MRV) system and a Capacity-building Initiative for Transparency (CBIT). Though such actions are universally accepted by the Parties to the Paris Agreement, earlier studies have shown that there remain technological, social, political and financial constrains which will affect the development and deployment of such a system. In this paper, using a case study on MRV implementation in Bogor City in Indonesia, how the above-mentioned challenges can be overcome is outlined through a technological and policy innovation process where scientists and technologists (collectively referred as expert networks) can join hands with local governments and national policy makers in designing, development and implementation of an MRV system that meets the local, national and global requirements. Through the case study it is further observed that expert networks can act as interactive knowledge generators and policy interlocutors in bridging technology with policy. To be specific, first, a brief history of the international context of MRV and CBIT is outlined. Next, the theoretical underpinning of the study is contextualized within the existing theories related to public policy and international relations. Finally, the case study is outlined and investigated where the engagement of an expert-network and policy makers in the design, development and implementation of an MRV tool is showcased.

关键词: MRV     CBIT     UNFCCC     Indonesia     Japan     ICT based monitoring     climate policy    

Calling systematic thinking in addressing water security issues

Jining CHEN, Pengfei DU

《环境科学与工程前沿(英文)》 2013年 第7卷 第5期   页码 625-625 doi: 10.1007/s11783-013-0564-6

标题 作者 时间 类型 操作

CO2 capture using membrane contactors: a systematic literature review

Sanaa Hafeez, Tayeba Safdar, Elena Pallari, George Manos, Elsa Aristodemou, Zhien Zhang, S. M. Al-Salem, Achilleas Constantinou

期刊论文

Effect of traditional Chinese medicine combined with Western therapy on primary hepatic carcinoma: a systematicreview with meta-analysis

null

期刊论文

Scientific publications on systematic review and meta-analysis from Chinese authors: a 10-year survey

null

期刊论文

益生菌辅助治疗类风湿关节炎的益处:随机对照临床试验荟萃分析和系统综述

潘胡丹, 李润泽, 李婷, 王俊, 刘良

期刊论文

Towards a respondent-preferred ki-anonymity model

Kok-Seng WONG,Myung Ho KIM

期刊论文

Consolidated standards of reporting trials (CONSORT) for traditional Chinese medicine: current situation

Zhaoxiang Bian, Baoyan Liu, David Moher, Taixiang Wu, Youping Li, Hongcai Shang, Chungwah Cheng

期刊论文

A systematic literature review

期刊论文

Strain localization analyses of idealized sands in biaxial tests by distinct element method

Mingjing JIANG, Hehua ZHU, Xiumei LI,

期刊论文

Exergy and exergoeconomic analyses for integration of aromatics separation with aromatics upgrading

期刊论文

A review of systematic evaluation and improvement in the big data environment

Feng YANG, Manman WANG

期刊论文

Quality Function Deployment Implementation in Construction: A Systematic Literature Review

Elizabeth A. Cudney,William L. Gillis

期刊论文

Numerical and experimental analyses of methane leakage in shield tunnel

期刊论文

Cohesive zone model-based analyses of localized leakage of segmentally lined tunnels

期刊论文

Expert networks as science-policy interlocutors in the implementation of a monitoring reporting and verification

Remi CHANDRAN, Tsuyoshi FUJITA, Minoru FUJII, Shuichi ASHINA, Kei GOMI, Rizaldi BOER, Muhammad ARDIANSYAH, Seiya MAKI

期刊论文

Calling systematic thinking in addressing water security issues

Jining CHEN, Pengfei DU

期刊论文