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Ziqiang, Zhou,Feng, Feng,Jinglong, Zhang,Yihui, Xiong,Xinyi, Ping,Qun, Huang 한국재료학회 1995 Fabrication and Characterization of Advanced Mater Vol.1 No.1
The pressure-composition-temperature(PCT) curves of $Mm_{0.6}Ml_{0.4}Ni_{5_x}Co_{x}(x{\leqslant}2.5)$hydrogne stroage alloys(HSA) are determined and the mathermatical model of PCT curve the author proposed is applied to analyse the data of PCT curve of the alloy system. It been shown from the results that the PCT curve of $Mm_{0.6}Ml_{0.4}Ni_{5-x}Co_{x}$can also be modeled by the mathematical model and the calculated PCT curves are in good agreement with the experimental curves. A lot of physical parameters of these alloys which are very useful are estimated from the modeling.
Feng Wang,Xiaowei Wang,Hongbo Chen,Jianzhu Liu,Ziqiang Cheng 대한수의학회 2011 JOURNAL OF VETERINARY SCIENCE Vol.12 No.3
The critical time of avian leukosis virus subgroup J (ALV-J)-mediated immunosuppression was determined by body weight, relative immune organ weight, histopathology, and presence of group specific antigen and antibodies in specific pathogen-free (SPF) chickens. CD4^+ and CD8^+ cell activity in the spleen, total and differential leukocyte counts in blood, and viral RNA levels in spleen were measured. Significant growth suppression was observed in the two ALV-J-infected groups. A strong immune response by infected groups was present in spleen at 2-weeks-of-age, but after 4-weeks-of-age, the response decreased quickly. The thymus and bursa showed persistent immunosuppression until 4-weeks-of-age. Proliferation of fibroblasts and dendritic cells were observed in immune organs at 4- and 5-weeks-of-age. However, the granulocyte cell number was markedly lower in the infected groups than in the control group. In group 1 (day 1 infection) CD4^+ cells increased during the second week but significantly decreased during the fourth week, while group 2 (day 7 infection) showed the opposite effect. Viral RNA increased significantly by the fourth week. These data identify 3∼4 weeks post-infection as the key time at which the ALV-J virus exerts its immunosuppressive effects on the host.
Ziqiang Wen,Yaqing Feng,Xianggao Li,Xiaoxu Li,Yu Bai,Qingmeng Tang,Yidan Gao 한국물리학회 2012 Current Applied Physics Vol.12 No.1
Diarylide yellow pigments/modified SiO2 coreeshell hybrid composite particles were fabricated via a newly developed two-step procedure. The surface of diarylide yellow pigments was coated with SiO2by the hydrolysis of Na2SiO3. The obtained particles were then modified with in situ generated 3-aminopropylsilanetriol or succinic acid to form composite particles containing amino or carboxyl groups. The FT-IR spectra, TGA and TEM showed that the particles had a coreeshell structure, the SEM suggested that the surface morphology of the composite particles was smooth, and the XPS and zeta potential measurement indicated that the composite particles had a high charge load. The obtained composite particles have been applied as electrophoretic particles in the electronic paper, which demonstrated that the newly developed procedure is an effective way to produce various organic/inorganic composite particles used for electrophoretic displays.
A New Segmentation-based Animation Storage Format On Mobile Platform
Lin Feng,Ziqiang Diao,Yu Cai,Yunzhe Sun 한국멀티미디어학회 2006 한국멀티미디어학회 국제학술대회 Vol.2006 No.-
Handheld computers such as mobile phone are becoming new platform for gaming. However, the limited memory is the main bottleneck that affects the game development. A new segmentation-based animation storage format is proposed to partly solve such problem. The key unit is extracted from segmented image and then can be reused in different key frames so that the size of the animation file can be greatly reduced. Furthermore, a convenient interface for data manipulation is also proposed, which can improve efficiency during development.
A 2-40 Gb/s PAM4/NRZ Dual-mode Wireline Transmitter with 4:1 MUX in 65-nm CMOS
Fangxu Lv,Xuqiang Zheng,Feng Zhao,Jianye Wang,Ziqiang Wang,Shuai Yuan,Yajun He,Chun Zhang,Zhihua Wang 대한전자공학회 2018 Journal of semiconductor technology and science Vol.18 No.2
This paper presents a 2-40 Gb/s dual-mode wireline transmitter supporting the four-level pulse amplitude modulation (PAM4) and non-return-tozero (NRZ) modulation with a multiplexer (MUX)-based two-tap feed-forward equalizer (FFE). An edgeacceleration technique is proposed for the 4:1 MUX to increase the bandwidth. By utilizing a dedicated cascode current source, the output swing can achieve 900 mV with a level deviation of only 0.12% for PAM4. Fabricated in a 65-nm CMOS process, the transmitter consumes 117 mW and 89 mW at 40 Gb/s in PAM4 and NRZ at 1.2 V supply.
Hypersonic thin plate flutter problem prediction using CFD-CSD approach
Jinan Lv,Zhichao Fu,Feng Feng,Ziqiang Liu 한국전산유체공학회 2014 한국전산유체공학회 학술대회논문집 Vol.2014 No.10
Hypersonic low-aspect-ratio thin plate flutter problem should be considered as a special aeroelastic case. In this paper, the flutter problem of a hypersonic thin elastic plate under Ma 6 flight condition is analyzed using CFD/CSD approach. The computed results indicate that in this case the coupling time step size should be considered cautiously but dual-time stepping and viscosity effect appears to be not significant for aeroelastic response of the thin plate.
Coprinus Comatus-Based Nitrogen-Doped Active Carbon for High Performance Supercapacitor
Guofu Ma,Wei Tang,Kanjun Sun,Zhiguo Zhang,Enke Feng,Ziqiang Lei 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2017 NANO Vol.12 No.8
Coprinus comatus-based nitrogen-doped activated carbon (N-ACC) is prepared by chemical activation and nitrogen-doped methods. The N-ACC possesses large specific surface areas (976.96m2 g -1), high nitrogen contents (11.53 wt.%), and super hydrophilicity. As electrode material for supercapacitors, the N-ACC shows remarkable electrochemical performance, such as 346 F g -1 maximum specific capacitance at a current density of 1A g -1, which retains 260 F g -1 even at a high current density of 10 A g -1 (about 75% capacitance retention) in 2MKOH aqueous electrolyte. The assembled N-ACC//N-ACC symmetric supercapacitor exhibits energy density of 14.63 Wh kg -1 at power density of 810 W kg -1, and excellent cycling stability with 92% specific capacitance retention after 10000 cycles in the voltage range 0–1.8V in 0.5M Na2SO4 aqueous solution. These results indicate that the N-ACC as electrode materials can be used for high performance supercapacitors.
The role of CTNNB1 and LEF1 in feather follicles development of Anser cygnoides and Anser anser
Yue Sun,Yuxuan Zhou,Petunia Msuthwana,Jing Liu,Chang Liu,Cornelius Tlotliso Sello,Yupu Song,Ziqiang Feng,Shengyi Li,Wei Yang,Yunpeng Xu,Xiaomin Yan,Chuanghang Li,Yujian Sui,Jingtao Hu,Yongfeng Sun 한국유전학회 2020 Genes & Genomics Vol.42 No.7
Background Wingless-types/beta-catenin (Wnt/β-catenin) signaling pathway is one of the most extensively studied transcriptional cascades involved in various types of organogenesis including embryonic and postnatal development. Downy feather quantity is primarily affected by follicular development and gene regulations. Objective This research was aimed to investigate the role of catenin beta-1(CTNNB1) and lymphoid enhancerbinding factor-1 (LEF1) on feather follicles development at different developmental stages. Methods Fluorescence quantitative PCR, Western-blot and immunohistochemical methods were used in Anser cygnoides and Anser anser embryos (E12, E13 E18, and E28) and after birth gosling stages (G18, G48, G88) for gene expression analysis. Results CTNNB1 and LEF1 genes were expressed in Anser cygnoides and Anser anser at different embryonic and after-birth gosling developmental stages and the expression levels were significantly different in different stages (p < 0.05). The mRNA expression of CTNNB1 and LEF1 genes reached the highest level at D88 in Anser cygnoides, while the highest expression levels were at D18 and D88 in Anser anser, and the expression levels of CTNNB1 genes at D88 in all embryonic stages were significantly lower than after-birth stages. CTNNB1 and LEF1 protein expression were the highest at E12 and E28 for Anser cygnoides feather follicles development. While at a similar stage for Anser anser, the expression of CTNNB1 and LEF1 protein was the highest at D48 and D18. Protein expression at embryonic stages was in the epidermis (E) and the hair basal plate (P), the expression site for after-birth stages was in the dermal papilla (DP). Conclusion Our study illustrated that CTNNB1 and LEF1 has an impact on Anser cygnoides and Anser anser feather follicles growth and development.