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 108

会议视频 4

年份

2023 9

2022 12

2021 13

2020 7

2019 4

2018 5

2017 16

2016 4

2015 9

2013 5

2012 3

2011 4

2010 3

2009 4

2008 3

2007 1

2006 1

2005 1

2004 1

2003 1

展开︾

关键词

医疗器械 2

多晶硅 2

电子效应 2

网络电子身份 2

身份管理 2

2021全球工程前沿 1

Agent 1

DVD 1

PB-PSOI 1

Pd局域环境 1

三氣氢硅法 1

三维室内制图；RGB-D；室内定位；施工监测；应急疏散 1

乙炔半加氢 1

产业分析 1

人工智能 1

低合金高强度钢 1

信息作战 1

信息物理系统 (CPS) 1

储层计算 1

展开︾

检索范围：

排序：展示方式：

Emerging technologies to power next generation mobile electronic devices using solar energy

Dewei JIA , Yubo DUAN , Jing LIU ,

《能源前沿（英文）》 2009年第3卷第3期页码 262-288 doi: 10.1007/s11708-009-0015-z

摘要： Mobile electronic devices such as MP3, mobile phones, and wearable or implanted medical devices have already or will soon become a necessity in peoples’ lives. However, the further development of these devices is restricted not only by the inconvenient charging process of the power module, but also by the soaring prices of fossil fuel and its downstream chain of electricity manipulation. In view of the huge amount of solar energy fueling the world biochemically and thermally, a carry-on electricity harvester embedded in portable devices is emerging as a most noteworthy research area and engineering practice for a cost efficient solution. Such a parasitic problem is intrinsic in the next generation portable devices. This paper is dedicated to presenting an overview of the photovoltaic strategy in the chain as a reference for researchers and practitioners committed to solving the problem.

关键词： photovoltaic conversion energy harvesting solar cell maximum power point track algorithm PV electricity storage mobile/standalone PV application

HTML PDF 收藏

Integrated energy storage system based on triboelectric nanogenerator in electronic devices

Xiao Feng, Yang Zhang, Le Kang, Licheng Wang, Chongxiong Duan, Kai Yin, Jinbo Pang, Kai Wang

《化学科学与工程前沿（英文）》 2021年第15卷第2期页码 238-250 doi: 10.1007/s11705-020-1956-3

摘要： The emergence of electronic devices has brought earth-shaking changes to people’s life. However, an external power source may become indispensable to the electronic devices due to the limited capacity of batteries. As one of the possible solutions for the external power sources, the triboelectric nanogenerator (TENG) provides a novel idea to the increasing number of personal electronic devices. TENG is a new type of energy collector, which has become a hot spot in the field of nanotechnology. It is widely used at the acquisition and conversion of mechanical energy to electric energy through the principle of electrostatic induction. On this basis, the TENG could be integrated with the energy storage system into a self-powered system, which can supply power to the electronic devices and make them work continuously. In this review, TENG’s basic structure as well as its working process and working mode are firstly discussed. The integration method of TENGs with energy storage systems and the related research status are then introduced in detail. At the end of this paper, we put forward some problems and discuss the prospect in the future.

关键词： electronic devices triboelectric nanogenerator mechanical energy self-powered system

HTML PDF 收藏

Review of recent advances of polymer based dielectrics for high-energy storage in electronic power devices

Wenjie Sun, Jiale Mao, Shuang Wang, Lei Zhang, Yonghong Cheng

《化学科学与工程前沿（英文）》 2021年第15卷第1期页码 18-34 doi: 10.1007/s11705-020-1939-4

摘要： Polymer-based dielectric capacitors are widely-used energy storage devices. However, although the functions of dielectrics in applications like high-voltage direct current transmission projects, distributed energy systems, high-power pulse systems and new energy electric vehicles are similar, their requirements can be quite different. Low electric loss is a critical prerequisite for capacitors for electric grids, while high-temperature stability is an essential pre-requirement for those in electric vehicles. This paper reviews recent advances in this area, and categorizes dielectrics in terms of their foremost properties related to their target applications. Requirements for polymer-based dielectrics in various power electronic equipment are emphasized, including high energy storage density, low dissipation, high working temperature and fast-response time. This paper considers innovations including chemical structure modification, composite fabrication and structure re-design, and the enhancements to material performances achieved. The advantages and limitations of these methods are also discussed.

关键词： dielectric capacitors polymer-based dielectrics energy density dielectric loss working temperature frequency response

HTML PDF 收藏

Decontamination of mobile phones and electronic devices for health care professionals using a chlorhexidine

Rafael Muniz de Oliveira, Nereida Mello da Rosa Gioppo, Jancineide Oliveira de Carvalho, Francilio Carvalho Oliveira, Thomas Jay Webster, Fernanda Roberta Marciano, Anderson Oliveira Lobo

《化学科学与工程前沿（英文）》 2019年第13卷第1期页码 192-198 doi: 10.1007/s11705-018-1728-5

摘要： Though they reduce microorganism growth, current hospital disinfectants also damage many of today’s modern electronic devices such as tablets and smartphones. Herein, the efficacy of a new chlorhexidine digluconate gel (CDG) was tested as a disinfectant for mobile and electronic devices in a clinical environment. Specifically, , , and methicillin resistant were used to infect the screen of eight smartphones. The CDG was prepared at concentrations of 2%, 4% and 6%, and tested on paper disks infected with these bacteria before being tested on the smartphones. The devices were disinfected with the CDG gel (4%) at two times: immediately and after 5 min of the bacterial contamination. In all cases, the CDG gel eliminated 100% of gram-positive and gram-negative microorganisms compared to the control (without any agent). In addition, the gel did not damage the smartphones. Therefore, our study suggests that the CDG gel may be applied to disinfect a wide range of electronic devices for health care professionals in the hospital environment.

关键词： smartphones disinfection clinical environment chlorhexidine bacteria

HTML PDF 收藏

A pseudocapacitive molecule-induced strategy to construct flexible high-performance asymmetric supercapacitors

《化学科学与工程前沿（英文）》 2023年第17卷第9期页码 1208-1220 doi: 10.1007/s11705-023-2304-1

摘要： The combination of high-voltage windows and bending stability remains a challenge for supercapacitors. Here, we present an “advantage-complementary strategy” using sodium lignosulfonate as a pseudocapacitive molecule to regulate the spatial stacking pattern of graphene oxide and the interfacial architectures of graphene oxide and polyaniline. Flexible and sustainable sodium lignosulfonate-based electrodes are successfully developed, showing perfect bending stability and high electronic conductivity and specific capacitance (521 F·g⁻¹ at 0.5 A·g^–1). Due to the resulting rational interfacial structure and stable ion-electron transport, the asymmetric supercapacitors provide a wide voltage window reaching 1.7 V, outstanding bending stability and high energy-power density of 83.87 Wh·kg^–1 at 3.4 kW·kg^–1. These properties are superior to other reported cases of asymmetric energy enrichment. The synergistic strategy of sodium lignosulfonate on graphene oxide and polyaniline is undoubtedly beneficial to advance the process for the construction of green flexible supercapacitors with remarkably wide voltage windows and excellent bending stability.

关键词： molecular synergy pseudocapacitive lignosulfonate flexible electronic devices asymmetric supercapacitor wide voltage windows

HTML PDF 收藏

医疗器械与新型穿戴式医疗设备的发展战略研究

程京,邢婉丽

《中国工程科学》 2017年第19卷第2期页码 68-71 doi: 10.15302/J-SSCAE-2017.02.011

摘要：

医疗器械领域涉及国计民生，发展潜力巨大，但我国医疗器械产业中低端产品较多，高端产品缺乏原创性，发展面临重重困难和挑战。作为快速增长的新兴技术领域，发展新型穿戴式医疗设备具有重要意义。为此，中国工程院启动了“我国全民健康与医药卫生事业发展战略研究”重大咨询项目，其中“医疗器械与新型穿戴式医疗设备的发展战略研究”作为八个重点课题之一，围绕医疗器械与新型穿戴式医疗设备的发展现状和战略需求，研究我国医疗器械产业与新型穿戴式医疗设备领域的现状及特点，分析我国医疗器械国产化与新型穿戴式医疗设备领域健康发展的关键问题，研究该领域的相关政策，理清我国医疗器械发展过程中的重点问题、需求、已有优势和特点，并在此基础上提出了对策建议。

关键词：医疗器械产业分析可穿戴设备发展战略

HTML PDF 收藏

中国电子雷管技术与应用

颜景龙

《中国工程科学》 2015年第17卷第1期页码 36-41

摘要：

从2006年长江三峡围堰拆除爆破工程中首次在中国应用电子雷管以来，安全、可靠、精准、环保等电子雷管与生俱来的特点和优势已经获得爆破专家们的广泛认可。详细论述了中国电子雷管近十年来的技术发展和市场应用现状，对现阶段中国电子雷管的性能指标、标准体系、专利知识产权等方面进行了统计分析，从产业化推广应用和工程使用方面进行了总结，最后对电子雷管的发展给出了几点建议。可以看出，随着国内工程爆破技术的发展进步和电子雷管产品的日趋成熟，电子雷管的应用优势和价值日益凸显，中国电子雷管的春天将会很快到来。

关键词：电子雷管；数码电子雷管；数码雷管

HTML PDF 收藏

Ultrasonic emulsification: basic characteristics, cavitation, mechanism, devices and application

《化学科学与工程前沿（英文）》 2023年第17卷第10期页码 1560-1583 doi: 10.1007/s11705-022-2160-4

摘要： Emulsion systems are widely applied in agriculture, food, cosmetic, pharmaceutical and biomedical industries. Ultrasound has attracted much attention in emulsion preparation, especially for nanoemulsion, due to its advantages of being eco-friendly, cost-effective and energy-efficient. This review provides an overview for readers to the area of ultrasonic emulsification technology. It briefly introduces and summarizes knowledge of ultrasonic emulsification, including emulsion characteristics, acoustic cavitation, emulsification mechanism, ultrasonic devices and applications. The combination of microfluidics and ultrasound is highlighted with huge advantages in controlling cavitation phenomena and emulsification intensification. A novel scale of dμ_C^0.6/μ_D^0.33−E_V is proposed to be able to compare the energy efficiency of emulsion preparation in different devices.

关键词： nanoemulsion ultrasound microreactor multiphase energy

HTML PDF 收藏

Introduction to the Special Section on Biomedical Devices for Personal Health Applications

I-Ming CHEN

《机械工程前沿（英文）》 2011年第6卷第1期页码 1-2 doi: 10.1007/s11465-011-0210-6

HTML PDF 收藏

Personalized biomedical devices & systems for healthcare applications

I-Ming CHEN, Soo Jay PHEE, Zhiqiang LUO, Chee Kian LIM

《机械工程前沿（英文）》 2011年第6卷第1期页码 3-12 doi: 10.1007/s11465-011-0209-z

摘要：

With the advancement in micro- and nanotechnology, electromechanical components and systems are getting smaller and smaller and gradually can be applied to the human as portable, mobile and even wearable devices. Healthcare industry have started to benefit from this technology trend by providing more and more miniature biomedical devices for personalized medical treatments in order to obtain better and more accurate outcome. This article introduces some recent development in non-intrusive and intrusive biomedical devices resulted from the advancement of niche miniature sensors and actuators, namely, wearable biomedical sensors, wearable haptic devices, and ingestible medical capsules. The development of these devices requires carful integration of knowledge and people from many different disciplines like medicine, electronics, mechanics, and design. Furthermore, designing affordable devices and systems to benefit all mankind is a great challenge ahead. The multi-disciplinary nature of the R&D effort in this area provides a new perspective for the future mechanical engineers.

关键词： personalized medical devices wearable sensor haptic device ingestible medical capsule

HTML PDF 收藏

Clean energy technology: materials, processes and devices for electrochemical energy conversion and storage

Hong YANG, Junliang ZHANG, Baolian YI

《能源前沿（英文）》 2017年第11卷第3期页码 233-235 doi: 10.1007/s11708-017-0501-7

HTML PDF 收藏

Optimal portfolio design of energy storage devices with financial and physical right market

《能源前沿（英文）》 2022年第16卷第1期页码 95-104 doi: 10.1007/s11708-021-0788-2

摘要： With the continuous development of the spot market, in the multi-stage power market environment with the day-ahead market and right market, the study associated with the portfolio of energy storage devices requires that attention should be paid to transmission congestion and power congestion. To maximize the profit of energy storage and avoid the imbalance of power supply and consumption and the risk of node price fluctuation caused by transmission congestion, this paper presents a portfolio strategy of energy storage devices with financial/physical contracts. First, the concepts of financial/physical transmission rights and financial/physical storage rights are proposed. Then, the portfolio models of financial contract and physical contract are established with the conditional value-at-risk to measure the risks. Finally, the portfolio models are verified through the test data of the Pennsylvania-New Jersey-Maryland (PJM) electric power spot market, and the comparison between the risk aversion of portfolios based on financial/physical contract with the portfolio of the market without rights. The simulation results show that the portfolio models proposed in this paper can effectively avoid the risk of market price fluctuations.

关键词： portfolio node price fluctuation transmission right energy storage right risk aversion

HTML PDF 收藏

Bioartificial liver devices: Perspectives on the state of the art

null

《医学前沿（英文）》 2011年第5卷第1期页码 15-19 doi: 10.1007/s11684-010-0110-x

摘要：

Acute liver failure remains a significant cause of morbidity and mortality. Bioartificial liver (BAL) devices have been in development for more than 20 years. Such devices aim to temporarily take over the metabolic and excretory functions of the liver until the patients’ own liver has recovered or a donor liver becomes available for transplant. The important issues include the choice of cell materials and the design of the bioreactor. Ideal BAL cell materials should be of good viability and functionality, easy to access, and exclude immunoreactive and tumorigenic cell materials. Unfortunately, the current cells in use in BAL do not meet these requirements. One of the challenges in BAL development is the improvement of current materials; another key point concerning cell materials is the coculture of different cells. The bioreactor is an important component of BAL, because it determines the viability and function of the hepatocytes within it. From the perspective of bioengineering, a successful and clinically effective bioreactor should mimic the structure of the liver and provide an in vivo-like microenvironment for the growth of hepatocytes, thereby maintaining the cells’ viability and function to the maximum extent. One future trend in the development of the bioreactor is to improve the oxygen supply system. Another direction for future research on bioreactors is the application of biomedical materials. In conclusion, BAL is, in principle, an important therapeutic strategy for patients with acute liver failure, and may also be a bridge to liver transplantation. It requires further research and development, however, before it can enter clinical practice.

关键词： acute liver failure bioartificial livers hepatocyte bioreactor

HTML PDF 收藏

Recycling Materials from Waste Electrical and Electronic Equipment

Jinhui Li

《环境科学与工程前沿（英文）》 2017年第11卷第5期 doi: 10.1007/s11783-017-1001-z

HTML PDF 收藏

2021年度信息与电子工程前沿

信息与电子工程项目组

《全球工程前沿》 2021年第5卷第1期页码 31-58

HTML PDF 收藏

标题作者时间类型操作

Emerging technologies to power next generation mobile electronic devices using solar energy

Dewei JIA , Yubo DUAN , Jing LIU ,

期刊论文

Integrated energy storage system based on triboelectric nanogenerator in electronic devices

Xiao Feng, Yang Zhang, Le Kang, Licheng Wang, Chongxiong Duan, Kai Yin, Jinbo Pang, Kai Wang

期刊论文

Review of recent advances of polymer based dielectrics for high-energy storage in electronic power devices

Wenjie Sun, Jiale Mao, Shuang Wang, Lei Zhang, Yonghong Cheng

期刊论文

Decontamination of mobile phones and electronic devices for health care professionals using a chlorhexidine

Rafael Muniz de Oliveira, Nereida Mello da Rosa Gioppo, Jancineide Oliveira de Carvalho, Francilio Carvalho Oliveira, Thomas Jay Webster, Fernanda Roberta Marciano, Anderson Oliveira Lobo

期刊论文

A pseudocapacitive molecule-induced strategy to construct flexible high-performance asymmetric supercapacitors

期刊论文

医疗器械与新型穿戴式医疗设备的发展战略研究

程京,邢婉丽

期刊论文

中国电子雷管技术与应用

颜景龙

期刊论文

Ultrasonic emulsification: basic characteristics, cavitation, mechanism, devices and application

期刊论文

Introduction to the Special Section on Biomedical Devices for Personal Health Applications