Search | Engineering

Subscribe Submit

Home Journals Focus Achievement Fronts About Us 中文版

Resource Type

Journal Article 167

Year

2024 2

2023 21

2022 15

2021 19

2020 10

2019 7

2018 11

2017 9

2016 11

2015 5

2014 4

2013 1

2012 2

2011 8

2010 5

2009 7

2008 4

2007 3

2006 4

2005 2

open ︾

Keywords

Adsorption 2

Concrete 2

High-performance computing 2

Nanostructure 2

Nanotechnology 2

polymer 2

-10#emulsified diesel oil 1

1 000 MW nuclear power plant 1

1D materials 1

2.3 μm 1

20 kt-level combined heavy-haul train 1

2D nanoparticles 1

700 MW hydro turbine generating unit 1

In situ pyrolysis 1

Brucella melitensis 1

Staphylococcus aureus 1

Acanthaceae 1

Accelerator 1

Adenovirus serotype 5 1

open ︾

Search scope:

排序： Display mode:

Nanoscale cryptographic architecture design using quantum-dot cellular automata Regular Article

Bikash Debnath, Jadav Chandra Das, Debashis De,dr.debashis.de@gmail.com

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 11, Pages 1578-1586 doi: 10.1631/FITEE.1800458

Abstract: based on cryptography is a new paradigm in the field of nanotechnology. The overall performance of QCA is high compared to traditional complementary metal-oxide semiconductor (CMOS) technology. To achieve data security during nanocommunication, a cryptography-based application is proposed. The devised circuit encrypts the input data and passes it to an output channel through a cum data path selector, where the data is decrypted back to its original form. The results along with theoretical implication prove the accuracy of the circuit. Power dissipation and circuit complexity of the circuit have been analyzed.

Keywords：量子点元胞自动机（QCA）；多数决定门密码学；加密；解密；纳米级路由

HTML PDF Collect

Nanosheet Chips Poised to Rescue Moore’s Law

Robert Pollie

Engineering 2021, Volume 7, Issue 12, Pages 1655-1656 doi: 10.1016/j.eng.2021.11.008

HTML PDF Collect

Optical Microscopy Advances Reach Sub-Nanometer Resolution

Chris Palmer

Engineering 2023, Volume 31, Issue 12, Pages 11-14 doi: 10.1016/j.eng.2023.11.002

HTML PDF Collect

Fluorescence nanoscopy in neuroscience Review

Yangyundou Wang,Jian Lin,Qiming Zhang,Xi Chen,Haitao Luan,Min Gu

Engineering 2022, Volume 16, Issue 9, Pages 29-38 doi: 10.1016/j.eng.2020.11.010

Abstract:

Fluorescence nanoscopy provides imaging techniques that overcome the diffraction-limited resolution barrier in light microscopy, thereby opening up a new area of research in biomedical imaging in fields such as neuroscience. Here, we review the foremost fluorescence nanoscopy techniques, including descriptions of their applications in elucidating protein architectures and mobility, the real-time determination of synaptic parameters involved in neural processes, three-dimensional imaging, and the tracking of nanoscale neural activity. We conclude by discussing the prospects of fluorescence nanoscopy, with a particular focus on its deployment in combination with related techniques (e.g., machine learning) in neuroscience.

Keywords： Fluorescence imaging Diffraction limit Nanoscale resolution Neuroscience

HTML PDF Collect

Dynamical Fast IP-Routing Lookup Algorithm

Liu Yalin

Strategic Study of CAE 2002, Volume 4, Issue 7, Pages 60-68

Abstract:

This paper proposes a dynamical fast IP-routing lookup algorithm (DFR). This algorithm uses special data structure to construct index table, and can support inserting, deleting and updating route dynamically. DFR algorithm accesses memory at most four times and at least two times for a route look up. DFR is suitable not only for hardware implementation but also for software implementation.

Keywords： prefix expansion dynamical fast IP-routing lookup algorithm (DFR) route route lookup

HTML PDF Collect

Design and Implementation of High Performance Security Router BW7000

Xu Mingwei,Xu Ke,Xiong Yongqiang,Jiang Yong,Sun Xiaoxia,Wu Jian,Yu Zhongchao

Strategic Study of CAE 2002, Volume 4, Issue 3, Pages 54-62

Abstract:

High performance and security are hot areas of the research of Internet. How to provide security protection but not decrease the forwarding performance is a hot research topic currently. This paper is based on the research of the high performance security router, a key project of national high technology research and development plan. Operating system (HEROS) of the high performance router BW7000 was developed independently. In order to provide high performance IP packets forwarding, a high performance routing lookup algorithm based on RAM was developed. A novel classification algorithm based on non-collision Hash-Trie-tree and an algorithm based on distributed packet fair queuing with feedback mechanism weve designed and impemented to support QoS control and security management. In order to secure the network, a router security architecture based on distributed key management was proposed.

Keywords： router Security router operating system route lookup packet classification packet scheduling

HTML PDF Collect

One Novel Dynamic Routing and Wavelength Assignment Integrate Algorithm in WDM Optical Network

Li Lei,Tang Yong,Rao Min,Chen Yu,Jiang Jianfeng,Zhang Mingde,Sun Xiaohan

Strategic Study of CAE 2004, Volume 6, Issue 12, Pages 73-77

Abstract:

Dynamic routing and wavelength assignment in the WDM networks with.both dynamic service traffic and limited-range wavelength conversion have been discussed. According to probability and limitation of wavelength conversion, a novel heuristic algorithm, which could achieve dynamic minimum cost routing and optimal virtual wavelength path, DMC - OVWP, is proposed based on Moone-Dijkstra algorithm. With separation and combination of routing and wavelength assignment subproblems, the algorithm optimizes RWA problem. The results simulating CERNET using the algorithm show that low blocking probability has been obtained.

Keywords： dynamic routing DWC-OVWP wavelength conversion virtual wavelength path link weight

HTML PDF Collect

Tailoring Photonic-Engineered Textiles with Butterfly-Mimetic Tertiary Micro/Nano Architectures for Superior Passive Radiative Cooling Article

Hongyu Guo, Tianye Niu, Jianyong Yu, Xueli Wang, Yang Si

Engineering 2023, Volume 31, Issue 12, Pages 120-126 doi: 10.1016/j.eng.2023.07.019

Abstract:

People could potentially mitigate heat discomfort when outdoors by combining passive radiative cooling (PRC) strategies with personal thermal management techniques. However, most current PRC materials lack wearing comfort and durability. In this study, a microarray technique is applied to fabricate the tailoring photonic-engineered textiles with intriguing PRC capability and appealing wearability. The developed radiative cooling textiles (RCTs) demonstrate appropriate air–moisture permeability, structural stability, and extended spectroscopic response with high sunlight reflectivity (91.7%) and robust heat emissivity (95.8%) through the atmospheric transparent spectral window. In a hot outdoor cooling test, a skin simulator covered by the RCTs displays a temperature drop of ∼4.4 °C at noon compared with cotton textiles. The evolution of our mimetic structures may provide new insights into the generation of wearable, thermal–wet comfortable, and robust textiles for exploring PRC techniques in personal thermal management applications.

Keywords： Biomimetic materials Personal thermal management Textiles Passive radiative cooling

HTML PDF Collect

Nanometre Technology and Its Influence on the Revolution of Science and Technology

Yuan Jun

Strategic Study of CAE 2001, Volume 3, Issue 10, Pages 82-85

Abstract:

In February 2000, U.S.A worked out the strategy of National Nanometre Technology (NT), which evoked worldwide repercussions . Japan and Europe also successively worked out their development program of NT. As a new forward branch of science , NT will become a core driving force of causing a new round of material revolution in the 21 st century and exert an immense influence on the field of aerospace. This paper simply introduces the definition of NT, nanometre materials, and the research and development status of NT.

Keywords： nanometre technology nanometre materials development program

HTML PDF Collect

Status quo and outlook of reconfigurable research

Li Yufeng,Qiu Han,Lan Julong

Strategic Study of CAE 2008, Volume 10, Issue 7, Pages 82-89

Abstract:

Today, with new services and applications blooming on the internet, to enable traditional routers to offer enough capability and speed of upgrade along with these services and applications in time would become even harder than ever. Run-time reconfiguration (RTR), based on the Field Programmable Gate Array (FPGA), is a new promising technology that can configure the partial or total hardware logic resources of a system at run time. Based on the technology, reconfigurable routers can support dynamic reconfiguration of new hardware logic for the new service, while keeping the other services still run properly, hence can provide a new possible solution to the update problem of the traditional routers. After introducing the basic concepts of RTR and the current development of the FPGA, this paper summarizes the past major research efforts with respect to the reconfigurable router, as well as the current work on it. Research directions and open problems are also discussed from the point of view of reconfigurable network.

Keywords： internet reconfigurable router reconfigurable network programmable hardware

HTML PDF Collect

Nanomechanical Characteristics of Interfacial Transition Zone in Nano-Engineered Concrete Article

Xinyue Wang, Sufen Dong, Zhenming Li, Baoguo Han, Jinping Ou

Engineering 2022, Volume 17, Issue 10, Pages 99-109 doi: 10.1016/j.eng.2020.08.025

Abstract:

This study investigates the effects of nanofillers on the interfacial transition zone (ITZ) between aggregate and cement paste by using nanoindentation and statistical nanoindentation techniques. Moreover, the underlying mechanisms are revealed through micromechanical modeling. The nanoindentation results indicate that incorporating nanofillers increases the degree of hydration in the ITZ, reduces the content of micropores and low-density calcium silicate hydrate (LD C-S-H), and increases the content of high-density C-S-H (HD C-S-H) and ultrahigh-density C-S-H (UHD C-S-H). In particular, a new phase, namely nano-core-induced low-density C-S-H (NCILD C-S-H), with a superior hardness of 2.50 GPa and an indentation modulus similar to those of HD C-S-H or UHD C-S-H was identified in this study. The modeling results revealed that the presence of nanofillers increased the packing density of LD C-S-H and significantly enhanced the interaction (adhesion and friction) among the basic building blocks of C-S-H gels owing to the formation of nano-core-shell elements, thereby facilitating the formation of NCILD C-S-H and further improving the performance of the ITZ. This study provides insight into the effects of nanofillers on the ITZ in concrete at the nanoscale.

Keywords： Concrete Nanofiller Interfacial transition zone Nanoindentation Micromechanical modeling Nano-core effect

HTML PDF Collect

Research and Realization of IP Multicast Routing Protocol

Li Wei

Strategic Study of CAE 2002, Volume 4, Issue 1, Pages 82-88

Abstract:

This paper first explains why IP multicasting must be used. Then it summaries the fundamentals of IP multicasting and multicast routing protocols. After that it specially discusses protoool independent multicast-sparse mode (PIM-SM), points out its defect and proposes a scheme to solve it. In this scheme each source registers and sends data packets toward multiple rendezvous points (RPs) but receivers only join to a single RP. If one of the RPs fails, receivers will join to one of the alternative RPs quickly. On implementation, the paper centers on the details of implementing PIM-SM. Finally it discusses the problems and prospect of IP multicasting.

Keywords： protocol independent multicast-sparse mode (PIM-SM) multiple rendezvous point (RPs) multicast

HTML PDF Collect

A novel context-aware RPL algorithm based on a triangle module operator Research Article

Yanan Cao, Hao Yuan,caoyanan@tjnu.edu.cn,yuanhao19880520@163.com

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 12, Pages 1551-1684 doi: 10.1631/FITEE.2000658

Abstract: For the use in low-power and lossy networks (LLNs) under complex and harsh communication conditions, the routing protocol for LLNs (RPL) standardized by the Internet Engineering Task Force is specially designed. To improve the performance of LLNs, we propose a novel RPL algorithm based on a (CAR-TMO). A novel composite routing metric (CA-RM) is designed, which synchronously evaluates the residual energy index, buffer occupancy ratio of a node, expected transmission count (ETX), delay, and hop count from a candidate parent to the root. CA-RM considers the residual energy index and buffer occupancy ratio of the candidate parent and its preferred parent in a recursive manner to reduce the effect of upstream parents, since farther paths are considered. CA-RM comprehensively uses the sum, mean, and standard deviation values of ETX and delay of links in a path to ensure a better performance. Moreover, in CAR-TMO, the of each routing metric is designed. Then, a comprehensive is constructed based on a , the of each routing metric, and a comprehensive objective function. A novel mechanism for calculating the node rank and the mechanisms for preferred parent selection are proposed. Finally, theoretical analysis and simulation results show that CAR-TMO outperforms several state-of-the-art RPL algorithms in terms of the packet delivery ratio and energy efficiency.

Keywords：三角模算子；隶属度函数；情景感知；低功耗有损网络路由协议（RPL）；路由度量

HTML PDF Collect

Fabrication and characterization of typical nano-scale structures

Jiang Zhuangde,Wang Chenying,Yang Shuming

Strategic Study of CAE 2013, Volume 15, Issue 1, Pages 15-20

Abstract:

Three types of nano-scale structure have been fabricated and characterized using SEM, AFM, etc. In this paper, multilayer thin film deposition technique has been used to fabricate nano-scale structure with 20nm, 25 nm and 35 nm line-width. LER and LWR of nanoline are evaluated with an offline image analysis algorithm. The experimental results indicate that the LER/LWR of the lines is low and the uniform of the lines is high. EBL and ICP technique are employed to fabricate grating patterns with nominal height 220 nm. The result shows that the high frequency fluctuations of line edges after etching decrease, the correlation length increases and values of root mean square deviation (σ) increase. Single and multiple nano steps have been fabricated using FIB technique, and the relationship between the size of the Z-axis and energy of process are analyzed.

Keywords： nanoline nanostep EBL ICP FIB

HTML PDF Collect

Anovel forwarding and routing mechanism design in SDN-basedNDNarchitecture None

Jia LI, Ren-chao XIE, Tao HUANG, Li SUN

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 9, Pages 1135-1150 doi: 10.1631/FITEE.1700698

Abstract:

Combining named data networking (NDN) and software-defined networking (SDN) has been considered as an important trend and attracted a lot of attention in recent years. Although much work has been carried out on the integration of NDN and SDN, the forwarding mechanism to solve the inherent problems caused by the flooding scheme and discard of interest packets in traditional NDN is not well considered. To fill this gap, by taking advantage of SDN, we design a novel forwarding mechanism in NDN architecture with distributed controllers, where routing decisions are made globally. Then we show how the forwarding mechanism is operated for interest and data packets. In addition, we propose a novel routing algorithm considering quality of service (QoS) applied in the proposed forwarding mechanism and carried out in controllers. We take both resource consumption and network load balancing into consideration and introduce a genetic algorithm (GA) to solve the QoS constrained routing problem using global network information. Simulation results are presented to demonstrate the performance of the proposed routing scheme.

Keywords： SDN-based NDN Forwarding mechanism QoS routing Genetic algorithm