http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
( Haiwei Zuo ),( Yanjing Sun ),( Changlin Lin ),( Song Li ),( Hongli Xu ),( Zefu Tan ),( Yanfen Wang ) 한국인터넷정보학회 2016 KSII Transactions on Internet and Information Syst Vol.10 No.7
In-band Full-duplex (IBFD) wireless communication allows improved throughput for wireless networks. The current Half-duplex (HD) medium access mechanism Request to Send/Clear to Send (RTS/CTS) has been directly applied to IBFD wireless networks. However, this is only able to support a symmetric dual link, and does not provide the full advantages of IBFD. To increase network throughput in a superior way to the HD mechanism, a novel three-way handshaking access mechanism RTS/SRTS (Second Request to Send)/CTS is proposed for point to multipoint (PMP) IBFD wireless networks, which can support both symmetric dual link and asymmetric dual link communication. In this approach, IBFD wireless communication only requires one channel access for two-way simultaneous packet transmissions. We first describe the RTS/SRTS/CTS mechanism and the symmetric/asymmetric dual link transmission procedure and then provide a theoretical analysis of network throughput and delay using a Markov model. Using simulations, we demonstrate that the RTS/SRTS/CTS access mechanism shows improved performance relative to that of the RTS/CTS HD access mechanism.
A Medium Access Control Mechanism for Distributed In-band Full-Duplex Wireless Networks
( Haiwei Zuo ),( Yanjing Sun ),( Song Li ),( Qiang Ni ),( Xiaolin Wang ),( Xiaoguang Zhang ) 한국인터넷정보학회 2017 KSII Transactions on Internet and Information Syst Vol.11 No.11
In-band full-duplex (IBFD) wireless communication supports symmetric dual transmission between two nodes and asymmetric dual transmission among three nodes, which allows improved throughput for distributed IBFD wireless networks. However, inter-node interference (INI) can affect desired packet reception in the downlink of three-node topology. The current Half-duplex (HD) medium access control (MAC) mechanism RTS/CTS is unable to establish an asymmetric dual link and consequently to suppress INI. In this paper, we propose a medium access control mechanism for use in distributed IBFD wireless networks, FD-DMAC (Full-Duplex Distributed MAC). In this approach, communication nodes only require single channel access to establish symmetric or asymmetric dual link, and we fully consider the two transmission modes of asymmetric dual link. Through FD-DMAC medium access, the neighbors of communication nodes can clearly know network transmission status, which will provide other opportunities of asymmetric IBFD dual communication and solve hidden node problem. Additionally, we leverage FD-DMAC to transmit received power information. This approach can assist communication nodes to adjust transmit powers and suppress INI. Finally, we give a theoretical analysis of network performance using a discrete-time Markov model. The numerical results show that FD-DMAC achieves a significant improvement over RTS/CTS in terms of throughput and delay.
Localized Surface Plasmon Resonance Properties of Concentric Dual-Ring Nanodisk
Haiwei Mu,Jianxin Wang,Qiang Liu,Wei Liu,Xianli Li,Jingwei Lv,Chao Liu,Famei Wang,Tao Sun,Paul K. Chu 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2019 NANO Vol.14 No.6
The extinction spectral properties based on localized surface plasmon resonance (LSPR) of the concentric dual-ring nanodisk (CDRN) structure are investigated by discrete dipole approximation (DDA) and plasmon hybridization theory. The CDRN nanostructure shows flexible tunable multipole resonances in the near-infrared regime and the coupled resonance wavelengths depend on the structural parameters of the nanostructure, which has great potential in multichannel LSPR-based bio-sensing applications.
Zongqian Wang,Haiwei Yang,Ning Pan,Wei Li,Yanxia Xie,Zhi Liu,Yinchun Fang 한국섬유공학회 2019 Fibers and polymers Vol.20 No.7
Polyethylene/Polypropylene (PE/PP) composite non-woven fabrics have been used widely for surgical packagesdue to its dual features of PE surface and PP surfaces. PP fabric pre-treated by hydrophilic agent provides high waterabsorbency, while PE surface is responsible for high barrier functions. However, the PP water absorbency declines once PEfilm is laminated, and no report devoted to study the extent and the reasons of this declining. Herein, the hydrophilic finishingof the PP non-woven fabrics was processed via Kiss-roll method, then the PE/PP fabrics were obtained using a normal hotmelt adhesive PE film laminating process. The wicking height, water absorption specific gravity (LAC%), static contactangle, as well as the complete wetting time of the finished PP and PE/PP fabric were measured and compared. Meanwhile,the SEM was used to detect the morphology changing. The results revealed that the pores between fibers in the PP nonwovenwere filled with non-hydrophilic hot melt adhesive penetrated during PE lamination, so that the PP structure changedto be less porous. Moreover, the laminated PP layer actually blocks the water flow channel in the system, resulting in theabsorbency reduction after lamination. As a result, comparing with the PP non-woven fabric, the wicking height of the PE/PPfabric decreased by 25.3 %, the LAC % value reduced by 40.83 %, and the complete wetting time extended from 0.29 s to1.74 s.
Non-stationary statistical modeling of extreme wind speed series with exposure correction
Huang, Mingfeng,Li, Qiang,Xu, Haiwei,Lou, Wenjuan,Lin, Ning Techno-Press 2018 Wind and Structures, An International Journal (WAS Vol.26 No.3
Extreme wind speed analysis has been carried out conventionally by assuming the extreme series data is stationary. However, time-varying trends of the extreme wind speed series could be detected at many surface meteorological stations in China. Two main reasons, exposure change and climate change, were provided to explain the temporal trends of daily maximum wind speed and annual maximum wind speed series data, recorded at Hangzhou (China) meteorological station. After making a correction on wind speed series for time varying exposure, it is necessary to perform non-stationary statistical modeling on the corrected extreme wind speed data series in addition to the classical extreme value analysis. The generalized extreme value (GEV) distribution with time-dependent location and scale parameters was selected as a non-stationary model to describe the corrected extreme wind speed series. The obtained non-stationary extreme value models were then used to estimate the non-stationary extreme wind speed quantiles with various mean recurrence intervals (MRIs) considering changing climate, and compared to the corresponding stationary ones with various MRIs for the Hangzhou area in China. The results indicate that the non-stationary property or dependence of extreme wind speed data should be carefully evaluated and reflected in the determination of design wind speeds.
Yongzhong Yu,Haiwei Wang,Lei Zhao,Chunyuan Zhang,Zhigang Jiang,Li Yu 한국미생물학회 2011 The journal of microbiology Vol.49 No.1
VP2 is a structural protein of the foot-and-mouth disease virus (FMDV). In this study, a FMDV serotype-independent monoclonal antibody (MAb), 4B2, was generated. By screening a phage-displayed random 12-peptide library, we found positive phages displaying the consensus motif ETTXLE (X is any amino acid (aa)), which is highly homologous to ^6ETTLLE^11 at the N-terminus of the VP2 protein. Subsequently, a series of GST-fusion proteins expressing a truncated N-terminus of VP2 were examined by western blot analysis using the MAb 4B2. The results indicated that the motif ^6ETTLLE^11 of VP2 may be the minimal requirement of the epitope recognized by 4B2. Moreover, a 12-aa peptide ^2KKTEETTLLEDR^13 was shown to be the minimal unit of the epitope with maximal binding activity to 4B2. Alanine-scanning analysis demonstrated thatThr^7, Thr^8, and Leu^10 are the functional residues of the 4B2 epitope Glu^6 and Leu^9 are required residues, and Glu^11 plays a crucial role in the binding of MAb 4B2. The fine mapping of the epitope indicated that MAb 4B2 has the potential to be used in FMDV diagnosis.
Non-stationary statistical modeling of extreme wind speed series with exposure correction
Mingfeng Huang,Qiang Li,Haiwei Xu,Wenjuan Lou,Ning Lin 한국풍공학회 2018 Wind and Structures, An International Journal (WAS Vol.26 No.3
Extreme wind speed analysis has been carried out conventionally by assuming the extreme series data is stationary. However, time-varying trends of the extreme wind speed series could be detected at many surface meteorological stations in China. Two main reasons, exposure change and climate change, were provided to explain the temporal trends of daily maximum wind speed and annual maximum wind speed series data, recorded at Hangzhou (China) meteorological station. After making a correction on wind speed series for time varying exposure, it is necessary to perform non-stationary statistical modeling on the corrected extreme wind speed data series in addition to the classical extreme value analysis. The generalized extreme value (GEV) distribution with time-dependent location and scale parameters was selected as a non-stationary model to describe the corrected extreme wind speed series. The obtained non-stationary extreme value models were then used to estimate the non-stationary extreme wind speed quantiles with various mean recurrence intervals (MRIs) considering changing climate, and compared to the corresponding stationary ones with various MRIs for the Hangzhou area in China. The results indicate that the non-stationary property or dependence of extreme wind speed data should be carefully evaluated and reflected in the determination of design wind speeds.
Lingli Xie,Litao Kang,Yae Li,Mangwei Cui,Bo Chang,Haiwei Jiang,Lili Gao,Xiaomin Wang,Shan Yun 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2017 NANO Vol.12 No.4
Micro-porous activated carbons (ACs) with a narrow pore size distribution of 0.4–0.6 nm and high specific surface areas (1160–1315 m2 · g-1) are prepared from environment-friendly, lowgrade potassium humate (HA-K, carbon resource) and mild activating agent potassium acetate (CH3COOK). Microstructure characterizations indicate that the introduction of activating agent CH3COOK is a key step to achieve high specific surface area and carbonization degree. These ACs contain small amount of oxygen and nitrogen, and show obvious pseudo-capacitance besides double layer capacitance. As a result, the optimized ACs achieve high specific capacitances of 311 F · g-1 and 317 F · g-1 at 0.1 A · g-1 in 2 M KOH and 1 M H2SO4 aqueous electrolytes, respectively. This sample also shows a good charge-discharge cycling stability within 10 000 cycles.
Antifungal Activities of Anthocyanins from Purple Sweet Potato in the Presence of Food Preservatives
Huiliang Wen,Jingjing Kang,Dandan Li,Wen Wen,Fubin Yang,Haiwei Hu,Chongbo Liu 한국식품과학회 2016 Food Science and Biotechnology Vol.25 No.1
Effects of anthocyanins from purple sweet potato (APSP) against the fungal growth of Geotrichum candidum and Candida albicans were assessed. Response surface methodology was applied for optimization of proportions of sodium benzoate, potassium sorbate, and APSP. Optimum concentrations against G. candidum were 0.300 mg/mL of sodium benzoate, 0.290mg/mL of potassium sorbate, and 13.9mg/mL of APSP. Optimum concentrations against C. albicans were 0.380 mg/mL of sodium benzoate, 0.240 mg/mL of potassium sorbate, and 3.56 mg/mL of APSP. APSP exhibited enhanced antifungal properties in the presence of food preservatives.