Search | Engineering

订阅投稿

首页工程期刊工程焦点工程成就工程前沿关于我们 English

资源类型

期刊论文 375

会议视频 17

年份

2024 1

2023 34

2022 42

2021 46

2020 28

2019 24

2018 17

2017 24

2016 21

2015 18

2014 21

2013 13

2012 10

2011 16

2010 11

2009 6

2008 10

2007 12

2006 5

2005 1

展开︾

关键词

高质量发展 8

质量 7

质量控制 6

质量安全 5

农业科学 4

创新 3

发展战略 3

智能制造 3

Preissmann格式 2

中国制造 2

中药 2

农产品 2

制造业 2

制造强国 2

原位统计分布分析 2

工程管理 2

战略 2

汽车 2

环境保护 2

展开︾

检索范围：

排序：展示方式：

Exploring differentiated improvement strategies of cultivated land quality in China

《农业科学与工程前沿（英文）》 doi: 10.15302/J-FASE-2023523

摘要：

● Cultivated land quality can be considered in four dimensions: suitability, contiguity, resistance, and ecological stress.

关键词： China cultivated land quality differentiated improvement food security

HTML PDF 收藏

Quality and efficiency improvement technology for five megawatt offshore wind turbines and its application

Huali HAN

《工程管理前沿（英文）》 2020年第7卷第4期页码 618-621 doi: 10.1007/s42524-020-0142-0

关键词： renewable energy megawatt offshore wind turbine technology-driven quality improvement

HTML PDF 收藏

Genetic improvement of wheat grain quality at CIMMYT

Carlos GUZMÁN, Karim AMMAR, Velu GOVINDAN, Ravi SINGH

《农业科学与工程前沿（英文）》 2019年第6卷第3期页码 265-272 doi: 10.15302/J-FASE-2019260

摘要：

The International Maize and Wheat Improvement Center (CIMMYT) is the global leader in publicly-funded maize and wheat research and in farming systems based on these crops. CIMMYT leads the Global Wheat Program (GWP), which includes some of the largest wheat breeding programs in the world. The GWP has been successful in developing wheat germplasm that is used extensively worldwide. Wheat quality improvement is a central component of all the breeding efforts at CIMMYT and the Wheat Chemistry and Quality Laboratory represents an integral part of the breeding programs. Wheat quality is addressed at CIMMYT over the full range of this very wide and variable concept with milling, processing, end-use and nutritional quality targeted. Wheat progenitors and advanced lines developed by the breeders are assessed for diverse quality attributes, with the aim of identifying those that fulfill the requirements in terms of milling, processing, end-use and nutritional quality in different target regions. Significant research is conducted to make more efficient the integration of wheat quality traits in the breeding programs. The main topics being addressed are (1) methodologies to analyze grain quality traits, (2) genetic control and environmental effects on quality traits, (3) characterization of genetic resources for quality improvement, and (4) diversifying grain properties for novel uses.

关键词： biofortification breeding grain quality wheat

HTML PDF 收藏

Air quality improvement in Los Angeles—Perspectives for developing cities

David D. Parrish,Jin Xu,Bart Croes,Min Shao

《环境科学与工程前沿（英文）》 2016年第10卷第5期 doi: 10.1007/s11783-016-0859-5

摘要： Air quality improvement in Los Angeles can inform air quality policies in developing cities. Emission control efforts, their results, costs and health benefits are briefly summarized. Today's developing cities face new challenges including regional pollution. Air quality issues in Beijing are briefly compared and contrasted with Los Angeles. Opportunities for co-benefits for climate and air quality improvement are identified. Air quality improvement in Los Angeles, California is reviewed with an emphasis on aspects that may inform air quality policy formulation in developing cities. In the mid-twentieth century the air quality in Los Angeles was degraded to an extent comparable to the worst found in developing cities today; ozone exceeded 600 ppb and annual average particulate matter <10 mm reached ~150 mg·m . Today's air quality is much better due to very effective emission controls; e.g., modern automobiles emit about 1% of the hydrocarbons and carbon monoxide emitted by vehicles of 50 years ago. An overview is given of the emission control efforts in Los Angeles and their impact on ambient concentrations of primary and secondary pollutants; the costs and health benefits of these controls are briefly summarized. Today's developing cities have new challenges that are discussed: the effects of regional pollution transport are much greater in countries with very high population densities; often very large current populations must be supplied with goods and services even while economic development and air quality concerns are addressed; and many of currently developing cities are located in or close to the tropics where photochemical processing of pollution is expected to be more rapid than at higher latitudes. The air quality issues of Beijing are briefly compared and contrasted with those of Los Angeles, and the opportunities for co-benefits for climate and air quality improvement are pointed out.

关键词： Air pollution Ozone Particulate matter Control technology

HTML PDF 收藏

Association between ICU quality and in-hospital mortality of V-V ECMO-supported patients—the ECMO qualityimprovement action (EQIA) study: a national cohort study in China from 2017 to 2019

《医学前沿（英文）》 doi: 10.1007/s11684-023-1014-x

摘要： This cohort study was performed to explore the influence of intensive care unit (ICU) quality on in-hospital mortality of veno-venous (V-V) extracorporeal membrane oxygenation (ECMO)-supported patients in China. The study involved all V-V ECMO-supported patients in 318 of 1700 tertiary hospitals from 2017 to 2019, using data from the National Clinical Improvement System and China National Critical Care Quality Control Center. ICU quality was assessed by quality control indicators and capacity parameters. Among the 2563 V-V ECMO-supported patients in 318 hospitals, a significant correlation was found between ECMO-related complications and prognosis. The reintubation rate within 48 hours after extubation and the total ICU mortality rate were independent risk factors for higher in-hospital mortality of V-V ECMO-supported patients (cutoff: 1.5% and 7.0%; 95% confidence interval: 1.05–1.48 and 1.04–1.45; odds ratios: 1.25 and 1.23; P = 0.012 and P = 0.015, respectively). Meanwhile, the V-V ECMO center volume was a protective factor (cutoff of ≥ 50 cases within the 3-year study period; 95% confidence interval: 0.57–0.83, odds ratio: 0.69, P = 0.0001). The subgroup analysis of 864 patients in 11 high-volume centers further strengthened these findings. Thus, ICU quality may play an important role in improving the prognosis of V-V ECMO-supported patients.

关键词： veno-venous extracorporeal membrane oxygenation in-hospital mortality high-volume centers quality control intensive care unit capacity parameters

HTML PDF 收藏

Target the neglected VOCs emission from iron and steel industry in China for air quality improvement

《环境科学与工程前沿（英文）》 2023年第17卷第8期 doi: 10.1007/s11783-023-1695-z

摘要：

● Haze formation in China is highly correlated with iron and steel industry.

关键词： Volatile organic compounds Iron and steel industry Air quality Sinter flue gas emission

HTML PDF 收藏

中国制造业产品质量提升策略研究

张豪,张纲,蒋家东,宗习均

《中国工程科学》 2022年第24卷第2期页码 38-47 doi: 10.15302/J-SSCAE-2022.02.002

摘要：

我国制造业产品质量参差不齐且与发达国家存在一定差距，提升制造业产品质量水平对推动我国制造业转型升级、强化制造业竞争内核、促进制造业高质量发展具有重要意义。本文以制造业高质量发展为出发点，在分析制造业质量发展特征的基础上，深入研究了我国制造业产品质量发展的态势以及面临的突出问题；结合制造业产品质量提升的国际经验，形成了制造业产品质量提升的若干发展建议。明确产品质量发展的战略定位，加强国家质量政策连贯性；聚焦未来产业发展需求，实施制造业质量提升率先行动计划；以数字化转型为牵引，加快推进质量管理理论、技术和工具创新；融合发展产业质量基础设施，筑牢制造业产品质量提升基础；推动质量生态环境再造，增强企业提高产品质量的意愿；发挥体制机制优势，实施制造业产品质量提高基础工程。

关键词：制造业，质量提升，产品质量，质量管理，质量基础设施

HTML PDF 收藏

Power quality improvement using fuzzy logic controller for five-level shunt active power filter under

Amar BENAISSA,Boualaga RABHI,Ammar MOUSSI

《能源前沿（英文）》 2014年第8卷第2期页码 212-220 doi: 10.1007/s11708-013-0284-4

摘要： In this paper, a five-level inverter is used as a shunt active power filter (APF), taking advantages of the multilevel inverter such as low harmonic distortion and reduced switching losses. It is used to compensate reactive power and eliminate harmonics drawn from a thyristor rectifier feeding an inductive load (RL) under distorted voltage conditions. The APF control strategy is based on the use of self-tuning filters (STF) for reference current generation and a fuzzy logic current controller. The use of STF instead of classical extraction filters allows extracting directly the voltage and current fundamental components in the - axis without phase locked loop (PLL). The MATLAB fuzzy logic toolbox is used for implementing the fuzzy logic control algorithm. The obtained results show that the proposed shunt APF controller has produced a sinusoidal supply current with low harmonic distortion and in phase with the line voltage.

关键词： active power filter (APF) harmonics isolator distorted voltage conditions self-tuning filters (STF) fuzzy logic control

HTML PDF 收藏

Development and application of innovative technologies for drinking water quality assurance in China

QU Jiuhui, YIN Chengqing, YANG Min, LIU Huijuan

《环境科学与工程前沿（英文）》 2007年第1卷第3期页码 257-269 doi: 10.1007/s11783-007-0044-y

摘要： The continuously deteriorating quality of source water is threatening the safety of drinking water in China. Various efforts have been made to update water treatment processes to decrease the pollution problems of drinking water, such as protection of drinking water sources, enhancement of conventional treatment processes, and development of new or advanced treatment technologies. This paper reviews a variety of protection and remediation methods for drinking water sources, development and application of drinking water treatment technologies, new technologies for special pollutants removal from groundwater, and the latest research progress on water distribution systems in China. treatment plant improvement is the key to ensure the quality of drinking water. There have been many researches on innovative treatment technologies in China and they have been applied in quite a number of water treatment plants. These innovations include key technique development and combination of technologies in the scope of economic optimization. On the basis of water quality from the plant, the distribution system is also important. This paper describes the latest development in the above respects.

关键词： advanced treatment economic optimization Various enhancement improvement

HTML PDF 收藏

高质量发展背景下中国建筑企业核心竞争力提升研究

卢春房,伍军,王孟钧,李新生,刘勃,梁超,户晓栋

《中国工程科学》 2021年第23卷第4期页码 79-86 doi: 10.15302/JSSCAE2021.04.009

摘要：

建筑业是国民经济的支柱行业，面对复杂的国际竞争形势和艰巨的国内发展任务，迫切需要开展我国建筑企业核心竞争力的提升研究。本文在分析我国建筑企业核心竞争力的现状和面临挑战的基础上，结合文献分析和专家咨询，运用鱼骨图梳理了我国建筑企业核心竞争力的影响因素，涵盖人力资源管理、科技创新、文化和品牌建设、项目管理、专业化建设、产业链整合等。从管理机构和企业层面提出了我国建筑企业核心竞争力提升的建议与措施：管理机构应健全科技创新体制机制，完善绿色建造相关标准及政策，加强行业治理；建筑企业应强化人力资源管理，推进科技创新，打造品牌软实力，整合产业链优质资源，深化核心业务优势。

关键词：高质量发展，建筑企业，核心竞争力，能力提升

HTML PDF 收藏

Unified power quality conditioner based on a three-level NPC inverter using fuzzy control techniques

Salim CHENNAI,M-T BENCHOUIA

《能源前沿（英文）》 2014年第8卷第2期页码 221-239 doi: 10.1007/s11708-014-0317-7

摘要： This paper presents a novel and efficient control scheme for unified power quality conditioner (UPQC) based on three-level neutral point clamped (NPC) inverter using fuzzy logic techniques. The proposed UPQC is capable of mitigating source current harmonics and compensate all voltage disturbances such as voltage sags, swells, unbalances and harmonics. It is designed by the integration of series and shunt active filters (AFs) sharing a common DC bus capacitor. The DC voltage is maintained constant using proportional integral voltage controller. The synchronous reference frame (SRF) theory is used to get the reference signals for shunt active power filters (APFs) and the power reactive theory (p-q theory) for series APFs. The shunt and series APF reference signals derived from the control algorithm and sensed signals are injected in two controllers to generate switching signals. To improve the UPQC capability, fuzzy logic techniques are introduced to control the series APF. The performances of the proposed UPQC system are evaluated in terms of power factor correction, mitigation of voltage or current harmonics and all other voltage disturbances compensation using Matlab-Simulink software and SimPowerSystem toolbox. The simulation results illustrate the performance of the proposed UPQC at the common connection point of the nonlinear load to improve the power energy quality.

关键词： three-level neutral point clamped (NPC) inverter unified power quality conditioner (UPQC) current harmonics mitigation fuzzy logic controller voltage disturbance compensation shunt active filter series active filter power quality energy improvement

HTML PDF 收藏

Research progress on genetic improvement of

Chuanping YANG

《农业科学与工程前沿（英文）》 2017年第4卷第4期页码 391-401 doi: 10.15302/J-FASE-2017183

摘要： Suk. is one of the most widely distributed species of , the fourth most valuable timber species in north-eastern China and also a common tree species for landscaping. Over the past 30 years, effective progress has been made in genetic improvement and molecular breeding of . There has been extensive research on breeding techniques, including the collection and conservation of germplasm resources, provenance trials, intensive breeding techniques, crossbreeding and asexual propagation techniques, ploidy breeding and mutation breeding technology, genome sequencing, gene cloning, transgenic and molecular mechanisms of wood formation. A germplasm resource collection has been established by collecting different provenances, and full-sib and half-sib families. In addition, the geographic variation patterns of provenances have been revealed, and the provenance division and superior provenance selections made. flowering and seeding have been improved through intensive breeding techniques. Interspecific hybridization, intraspecific hybridization and parallel crosses were made using fine parents, and intensive seed orchards have been established. Systems of asexual propagation, including cuttings, grafting and tissue culture have been established. A tetraploid was successfully constructed and a triploid seed orchard established. The growth, wood property and resistance genes of have been cloned. An efficient transgenic system mediated by was established, and genes encoding insect resistance, drought resistance and salt tolerance, lignin synthesis, flowering, hormone transport and balance obtained. molecular markers were developed and the high density genetic map constructed. All this research has provided a model and data for the foundation of forest genetic improvement and applied research.

关键词： Betula platyphylla genetic improvement molecular breeding seed orchard

HTML PDF 收藏

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

HTML PDF 收藏

出行者信息服务App对城市大气环境质量的效益评估 Article

黄文柯, 胡明伟

《工程（英文）》 2018年第4卷第2期页码 224-229 doi: 10.1016/j.eng.2018.03.003

摘要：

随着车辆保有量和年均行驶里程的快速增长，中国大城市的机动车尾气排放问题愈发严峻。本文研究了出行者信息服务App（尤其是导航类App）在改善整个交通网络运行效率的同时，是否能降低尾气排放。出行者信息服务App 提供的实时交通信息，不仅可以帮助出行者躲避拥堵，还会对出行者的出发时间、出行方式等造成影响。这种个体行为的变化，是否有利于提升城市的整体空气质量？以及可以在多大程度上降低机动车的尾气排放？我们试图揭示导航类App 提供的实时交通信息对城市空气质量的影响，研究成果可为城市交通政策和环境政策的制定提供参考。

关键词：实时交通信息移动终端环境效益智能体建模

HTML PDF 收藏

China-CIMMYT collaboration enhances wheat improvement in China

Zhonghu HE, Xianchun XIA, Yong ZHANG, Yan ZHANG, Yonggui XIAO, Xinmin CHEN, Simin LI, Yuanfeng HAO, Awais RASHEED, Zhiyong XIN, Qiaosheng ZHUANG, Ennian YANG, Zheru FAN, Jun YAN, Ravi SINGH, Hans-Joachim BRAUN

《农业科学与工程前沿（英文）》 2019年第6卷第3期页码 233-239 doi: 10.15302/J-FASE-2019254

摘要：

China and CIMMYT have collaborated on wheat improvement for over 40 years and significant progress has been achieved in five aspects in China. A standardized protocol for testing Chinese noodle quality has been established with three selection criteria, i.e., gluten quality, starch viscosity and flour color are identified as being responsible for noodle quality. Genomic approaches have been used to develop and validate gene-specific markers, leading to the establishment of a KASP platform, and seven cultivars have been released through application of molecular marker technology. Methodology for breeding adult-plant resistance to yellow rust, leaf rust and powdery mildew, based on the pleiotropic effect of minor genes has been established, resulting in release of six cultivars. More than 330 cultivars derived from CIMMYT germplasm have been released and are now grown over 9% of the Chinese wheat production area. Additionally, physiological approaches have been used to characterize yield potential and develop high-efficiency phenotyping platforms. CIMMYT has also provided valuable training for Chinese scientists. Development of climate-resilient cultivars with application of new technology will be the priority for future collaboration.

关键词： adult-plant resistance bread wheat breeding gene-specific marker germplasm exchange processing quality

HTML PDF 收藏

标题作者时间类型操作

Exploring differentiated improvement strategies of cultivated land quality in China

期刊论文

Quality and efficiency improvement technology for five megawatt offshore wind turbines and its application

Huali HAN

期刊论文

Genetic improvement of wheat grain quality at CIMMYT

Carlos GUZMÁN, Karim AMMAR, Velu GOVINDAN, Ravi SINGH

期刊论文

Air quality improvement in Los Angeles—Perspectives for developing cities

David D. Parrish,Jin Xu,Bart Croes,Min Shao

期刊论文

Association between ICU quality and in-hospital mortality of V-V ECMO-supported patients—the ECMO qualityimprovement action (EQIA) study: a national cohort study in China from 2017 to 2019

期刊论文

Target the neglected VOCs emission from iron and steel industry in China for air quality improvement

期刊论文

中国制造业产品质量提升策略研究

张豪,张纲,蒋家东,宗习均

期刊论文

Power quality improvement using fuzzy logic controller for five-level shunt active power filter under

Amar BENAISSA,Boualaga RABHI,Ammar MOUSSI

期刊论文

Development and application of innovative technologies for drinking water quality assurance in China

QU Jiuhui, YIN Chengqing, YANG Min, LIU Huijuan

期刊论文