http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
OPT-VCG: A Novel Proposal for 3D SoC Test Optimization
Jingbo Shao,Yongqing Fu,Xiaoxiao Liu,Guohui Zhou 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.2
As an emerging technology for on-chip interconnect scaling in vertical direction in semiconductor industry, through-silicon-via (TSV) demonstrates its advantages and has been adopted for 3D SoC implementation. Optimal test architecture and test scheduling are significant for stacked 3D SoC design. However existing design methods cannot achieve both optimal test time and individual rationality. In this paper, game theory based 3D SoC test architecture optimization and test scheduling method is proposed under constraints of the available number of TSVs for test time minimization and rational test band width allocation. VCG algorithm is brought to 3D SoC design. Three kinds of stacked SoCs are built using ITC’02 SoC test benchmarks, and experimental results on them show the advantages of the proposed method over prior work.
Time Series Data Cleaning Method Based on Optimized ELM Prediction Constraints
Guohui Ding,Yueyi Zhu,Chenyang Li,Jinwei Wang,Ru Wei,Zhaoyu Liu 한국정보처리학회 2023 Journal of information processing systems Vol.19 No.2
Affected by external factors, errors in time series data collected by sensors are common. Using the traditionalmethod of constraining the speed change rate to clean the errors can get good performance. However, they areonly limited to the data of stable changing speed because of fixed constraint rules. Actually, data with unevenchanging speed is common in practice. To solve this problem, an online cleaning algorithm for time series databased on dynamic speed change rate constraints is proposed in this paper. Since time series data usually changesperiodically, we use the extreme learning machine to learn the law of speed changes from past data and predictthe speed ranges that change over time to detect the data. In order to realize online data repair, a dual-windowmechanism is proposed to transform the global optimal into the local optimal, and the traditional minimumchange principle and median theorem are applied in the selection of the repair strategy. Aiming at the problemthat the repair method based on the minimum change principle cannot correct consecutive abnormal points,through quantitative analysis, it is believed that the repair strategy should be the boundary of the repaircandidate set. The experimental results obtained on the dataset show that the method proposed in this paper canget a better repair effect.
^(64)Zn and ^(67)Zn (n,α) Reactions in the MeV Neutron Energy Region
Guohui Zhang,Jiaguo Zhang,Hao Wu,Jiaming Liu,Jinxiang Chen,Yuri Gledenov,Milana Sedysheva,Gonchigdorj Khuukhenkhuu,Pavel Szalanski 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
Nuclear reactions of ^(64)Zn(n,α)^(61)Ni and ^(67)Zn(n,α)^(64)Ni are important because they are gas pro-duction reactions and zinc is a reactor constituent element with a signicant fraction. But the cross section data of these reactions are scanty because the residual nuclei ^(61)Ni and ^(64)Ni are stable and the commonly used activation method is not feasible. In the present work, differential cross sections and angleintegrated cross sections were measured for the ^(64)Zn(n,α)^(61)Ni reaction at neutron energies of 2.5, 4.0, 5.0, 5.5, and 6.0 MeV and cross sections of the ^(67)Zn(n,α)^(64)Ni reaction were measured at 4.0, 5.0, and 6.0 MeV. A twin gridded ionization chamber was employed as alpha particle detector. Experiments were performed at the 4.5 MV Van de Graaff accelerator of Peking University. Monoenergetic neutrons of 2.5 MeV were produced through the T(p, n)^3He reaction with a solid Ti-T target, and those of other energies were produced through the D(d, n)^3He reaction with a deuterium gas target. Absolute neutron fluxes were determined through the ^(238)U(n, f) reaction and a BF^3 long counter was used as the neutron flux monitor. Present results are compared with other measurements and evaluations.
Matrine Suppresses Pancreatic Fibrosis by Regulating TGF-β/Smad Signaling in Rats
Pi Liu,Luhong Zhu,Guohui Zou,Huajing Ke 연세대학교의과대학 2019 Yonsei medical journal Vol.60 No.1
Purpose: This study aimed to elucidate the molecular mechanisms of the anti-pancreatic fibrosis effects of matrine in rats. Materials and Methods: Trinitrobenzene sulfonic acid was administrated to rats to establish a pancreatic fibrosis model. Rats weredivided into four groups: Control, Sham, Model, and Matrine (n=8). Hematoxylin-eosin staining, Masson staining, and Azan stainingwere performed to evaluate pancreatic fibrosis. Expression of transforming growth factor-β1 (TGF-β1), α-smooth muscle actin(α-SMA), and collagen I in pancreatic tissues was evaluated by immunohistochemical staining. mRNA and protein levels of TGF-βreceptor 1 (TβR1), TβR2, and Smad2 in pancreatic tissues were determined by RT-PCR and Western blot, respectively. Results: In the model group, hyperplasia of glandules around the glandular ducts, mitochondrial swelling of acinous cells, andsevere fibrosis were found. Interestingly, in the Matrine group, mitochondrial swelling was only found in a small number of acinouscells, and the fundamental structures of pancreatic tissues were intact. Moreover, pancreatic fibrosis was markedly alleviated. Comparing to the Sham group, expression of α-SMA, TGF-β1, and collagen I was sharply elevated in the Model group (p<0.05);however, their expressions were much lower in the Matrine group, compared to the Model group (p<0.05). Compared with theSham group, mRNA and protein levels of Smad2, TβR1, and TβR2 in the Model group were notably raised (p<0.05). However,their high expression was significantly downregulated in the Matrine group (p<0.05). Conclusion: Matrine suppressed pancreatic fibrosis by regulating TGF-β/Smad signaling in rats.
( Yanyan Liu ),( Hojin Ryu ),( Beibei Ge ),( Guohui Pan ),( Lei Sun ),( Kyungseok Park ),( Kecheng Zhang ) 한국미생물 · 생명공학회 2014 Journal of microbiology and biotechnology Vol.24 No.12
Wuyiencin is produced by Streptomyces ahygroscopicus var. wuyiensis CK-15 and is widely used as an antifungal agent in agriculture. Analysis of wuyiencin biosynthetic gene clusters reveals wysR, a member of the LAL-family of transcriptional regulatory genes. WysR consists of an Nterminal PAS domain and a LuxR family C-terminal helix-turn-helix motif. However, the roles of wysR in wuyiencin biosynthesis are largely unknown. In this study, we showed that inactivation of wysR resulted in the complete loss of wuyiencin production, which could be restored by complementation with a single copy of wysR. Furthermore, we successfully increased wuyiencin production to a significantly higher level by overexpression of wysR in S. wuyiensis CK-15. Quantitative real-time RT-PCR analysis showed that WysR regulates wuyiencin biosynthesis by modulating other putative regulatory genes. Thus, WysR was identified as an activator of wuyiencin biosynthesis, and overexpression of wysR gene proved to be an effective strategy for improving wuyiencin production.
Qing Chen,Guohui Zhang,Kaixuan Wang,Chao Wang,Guangzhu Ding,Jieping Liu 한국고분자학회 2017 Macromolecular Research Vol.25 No.4
The growth of spherulites is an intricate process and the final morphology is dependent on many process conditions. The spherulitic morphologies of poly(3-hydroxybutyrate) (PHB) crystallized from melt film are observed under various crystallization temperature gradient (the non-isothermal crystallization) in this work. Characterization reveals that the crystal morphologies (banded or nonbanded spherulites) of PHB film are determined significantly by nucleation temperature (not growth temperature). Interestingly, banded spherulites, nucleated between 60-135 oC, are able to grow completely above growth temperature 135 oC or below 60 oC yet and non-banded shperulites nucleated at above 135 oC can also develop steadily till below growth temperature 135 oC under temperature gradient condition. Therefore, the conclusion drawn from the temperature gradient or non-isothermal process is novel and different from the result of isothermal crystallization (morphology mainly depending on the growth temperature). In addition, the growth and evolution kinetics of banded and non-banded spherulites are both investigated for some polymer thin films under the temperature gradient in detail.
Dynamic Resource Reservation for Ultra-low Latency IoT Air-Interface Slice
( Guolin Sun ),( Guohui Wang ),( Prince Clement Addo ),( Guisong Liu ),( Wei Jiang ) 한국인터넷정보학회 2017 KSII Transactions on Internet and Information Syst Vol.11 No.7
The application of Internet of Things (IoT) in the next generation cellular networks imposes a new characteristic on the data traffic, where a massive number of small packets need to be transmitted. In addition, some emerging IoT-based emergency services require a real-time data delivery within a few milliseconds, referring to as ultra-low latency transmission. However, current techniques cannot provide such a low latency in combination with a mice-flow traffic. In this paper, we propose a dynamic resource reservation schema based on an air-interface slicing scheme in the context of a massive number of sensors with emergency flows. The proposed schema can achieve an air-interface latency of a few milliseconds by means of allowing emergency flows to be transported through a dedicated radio connection with guaranteed network resources. In order to schedule the delay-sensitive flows immediately, dynamic resource updating, silence-probability based collision avoidance, and window-based re-transmission are introduced to combine with the frame-slotted Aloha protocol. To evaluate performance of the proposed schema, a probabilistic model is provided to derive the analytical results, which are compared with the numerical results from Monte-Carlo simulations.