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46篇 您的检索式:作者名="HOU JianFeng"
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1Acyclic edge colorings of planar graphs and series-parallel graphs显示文摘A proper edge coloring of a graph G is called acyclic if there is no 2-colored cycle in G. The acyclic edge chromatic number of G, denoted by a (G), is the least number of colors in an acyclic edge coloring of G. Alon et al. conjectured that a (G) Δ(G) + 2 for any graphs. For planar graphs G with girth g(G), we prove that a (G) max{2Δ(G) + 2, Δ(G) + 22} if g(G) 3, a (G) Δ(G) + 2 if g(G) 5, a (G) Δ(G) + 1 if g(G) 7, and a (G) = Δ(G) if g(G) 16 and Δ(G) 3. For series-parallel graphs G, we have a (G) Δ(G) + 1.HOU JianFeng WU JianLiang LIU GuiZhen LIU Bin 2009Science China Mathematics2009,52,3:24
2The construction of a genetic linkage map of non-heading Chinese cabbage (Brassica campestris ssp.chinensis Makino)显示文摘Non-heading Chinese cabbage(Brassica campestris ssp.chinensis Makino) is one of the most important vegetables in eastern China.A genetic linkage map was constructed using 127 doubled haploid(DH) lines,and the DH population was derived from a commercial hybrid 'Hanxiao'(lines SW-13 × L-118).Out of the 614 polymorphic markers,43.49% were not assigned to any of the linkage groups(LGs).Chi-square tests showed that 42.67% markers were distorted from expected Mendelian segregation ratios,and the direction of distorted segregation was mainly toward the paternal parent L-118.After sequentially removing the markers that had an interval distance smaller than 1 cM from the upper marker,the overall quality of the linkage map was increased.Two hundred and sixty-eight molecular markers were mapped into 10 LGs,which were anchored to the corresponding chromosome of the B.rapa reference map based on common simple sequence repeat(SSR) markers.The map covers 973.38 cM of the genome and the average interval distance between markers was 3.63 cM.The number of markers on each LG ranged from 18(R08) to 64(R07),with an average interval distance within a single LG from 1.70 cM(R07) to 6.71 cM(R06).Among these mapped markers,169 were sequence-related amplified polymorphism(SRAP) mo-lecular markers,50 were SSR markers and 49 were random amplification polymorphic DNA(RAPD) markers.With further saturation to the LG,the current map offers a genetic tool for loci analysis for important agronomic traits.Yan Cheng Jianfeng Geng Jingyi Zhang Qian Wang Qingyu Ban Xilin Hou 2009Journal of Genetics and Genomics2009,36,8:9
3Preparation of mesoporous silica microspheres with multi-hollow cores and their application in sustained drug release显示文摘Mesoporous silica microspheres with multi-hollow cores(MSMMCs)were prepared by an O1/W/O2 double emulsion technique.When tetraethyl orthosilicate(TEOS)was hydrolyzed in the O1/W/O2 double emulsion with P123(a triblock copolymer with a formula of HO(CH2CH2O)20(CH2CH(CH3)O)70(CH2CH2O)20H)dissolved in the aqueous phase,the internal oil droplets would serve as templates for the empty hollow cores,P123 function as templates for the mesopores in the shell,and the aqueous phase act as space-limiting micro-reactors for the hydrolysis process,thus forming MSMMCs with controllable size and hollow cores.After further modification by a high-temperature aging process,the prepared MSMMCs had a diameter of 2-10 m,with macro-multi-hollow cores with a size of 100-1000 nm,mesopores in the shell with a size of 3.8-4.4 nm,and a surface area of 383-735 m2/g.In addition,MSMMCs were used as carriers to load avermectin through an immersing and evaporating process,and the loaded avermectin showed a well sustained release behavior from the MSMMCs matrix.This study demonstrated a promising and simple method for preparing silica micro-particles with porous multi-hollow core structure for sustained release applications.Chen Zhang Tian Hou Jianfeng Chen Lixiong Wen 2010Particuology2010,8,5:7
4A review of nondestructive examination technology for polyethylene pipe in nuclear power plant显示文摘Jinyang ZHENG Yue ZHANG Dongsheng HOU Yinkang QIN Weican GUO Chuck ZHANG Jianfeng SHI 2018Frontiers of Mechanical Engineering2018,13,4:6
5nduction of M2-1ike macrophages in recipient NOD-scid mice by allogeneic donor CD4+CD25+ regulatory T cells显示文摘CD4 + 规章的 T 细胞(Tregs ) 玩的 CD25 + 在经由显型的规定和天生、适应的有免疫力的细胞的功能维持宿主免疫者忍耐的一个重要角色。是否 allogeneic CD4 + CD25 + Tregs 能调整接受者老鼠巨噬细胞是未知的。allogeneic 施主 CD4 + 接受者老鼠居民 F4/80 ++ Tregs > 巨噬细胞用在的一个老鼠模型被调查 allogeneic 施主 CD4 + CD25 + Tregs 采纳地被变成主人 NOD-scid 老鼠的腹洞。接受者巨噬细胞的显型和功能当时是 assayed。在收到了 allogeneic CD4 ++巨噬细胞> CD25 + Tregs 显著地表示了 CD23 的高水平并且规划了房间 death-ligand 1 ( PD-L1 )并且 CD80 的底层, CD86 ,与收到了任何一个 allogeneic CD4 + CD25 T 房间( Teffs )或没有房间。接受者老鼠的居民 F4/80 + 巨噬细胞与 allogeneic 施主 CD4 + 显著地显示的 CD25 + Tregs 和增加的 IL-10 生产增加了鸡红血房间(cRBCs ) 和 arginase 活动的吞噬作用,而这些巨噬细胞也显示出减少的 immunogenicity 和氮的氧化物(没有) 生产。部分,但是显著地堵住 arginase 颠倒了 CD4 + 关于在 vivo 的 M2 巨噬细胞的正式就职的 CD25 + Tregs。因此, allogeneic 施主 CD4 + CD25 + Tregs 能经由一条 arginase 小径部分地至少在接受者老鼠导致 M2 巨噬细胞。我们在 vivo 证据提供了支持由的未知小径 allogeneic 施主 CD4 + CD25 + Tregs 由支持 M2 巨噬细胞的区别在接受者老鼠调整天生的豁免。Xuelian Hu Guangwei Liu Yuzhu Hou Jianfeng Shi Linnan Zhu Di Jin Jianxia Peng Yong Zhao 2012Cellular & Molecular Immunology2012,9,6:5
6Acyclic edge coloring of graphs with large girths显示文摘A proper edge coloring of a graph G is called acyclic if there is no 2-colored cycle in G. The acyclic chromatic index of G, denoted by χ'a(G), is the least number of colors such that G has an acyclic edge k-coloring. Let G be a graph with maximum degree Δ and girth g(G), and let 1≤r≤2Δ be an integer. In this paper, it is shown that there exists a constant c > 0 such that if g(G)≥cΔ r log(Δ2/r) then χa(G)≤Δ + r + 1, which generalizes the result of Alon et al. in 2001. When G is restricted to series-parallel graphs, it is proved that χ'a(G) = Δ if Δ≥4 and g(G)≥4; or Δ≥3 and g(G)≥5.LIN QiZhong HOU JianFeng LIU Yue 2012Science China Mathematics2012,55,12:4
7Preparation of polypyrrole/TiO2 nanocomposites with enhanced photocatalytic performance显示文摘Fei Gao, Xianhui Hou Aolan Wang Guangwen Chu Wei Wu Jianfeng Chen Haikui Zou 2016Particuology2016,14,3:4
8Total coloring of embedded graphs of maximum degree at least ten显示文摘A total k-coloring of a graph G is a coloring of V(G) ∪ E(G) using k colors such that no two adjacent or incident elements receive the same color.The total chromatic number χ〃(G) is the smallest integer k such that G has a total k-coloring.In this paper,it is proved that the total chromatic number of any graph G embedded in a surface Σ of Euler characteristic χ(Σ)≥0 is Δ(G) + 1 if Δ(G)≥10,where Δ(G) denotes the maximum degree of G.HOU JianFeng 1,2,WU JianLiang 2,LIU GuiZhen 2 & LIU Bin 2 1 Center for Discrete Mathematics,Fuzhou University,Fuzhou 350002,China 2 School of Mathematics,Shandong University,Jinan 250100,China 2010Science China Mathematics2010,53,8:3
9A COVID-19 Outbreak Emerging in a Food Processing Company——Harbin City,Heilongjiang Province,China,January-February 2021显示文摘Summary What is already known about this topic?The coronavirus disease 2019(COVID-19)epidemic in China had been effectively controlled for several months,but as the ambient temperature dropped,large gathering-initiated epidemics occurred in northern China,including Hebei,Liaoning,and Jilin provinces.Lei Hou Hao Zhou Nanxi Meng Xue Yu Xin Wang Tuo Wang Jianfeng Zhang Yan Wang Shie Li Shuzhen Guo Jianxing Yu Muxin Chen Wenhui Shi Ning Xiao Chao Yang Jianxiang Liu 2021China CDC weekly2021,3,32:2
10List edge and List Total coloring of planar graphs without 4- cycles 显示文摘HOU JIANFENG LIU GUIZHEN CAI JIANSHENG 2006Theoretical Computer Science2006,369,:1
11The Solar Upper Transition Region Imager(SUTRI)Onboard the SATech-01 Satellite显示文摘The Solar Upper Transition Region Imager(SUTRI)onboard the Space Advanced Technology demonstration satellite(SATech-01),which was launched to a Sun-synchronous orbit at a height of~500 km in 2022 July,aims to test the on-orbit performance of our newly developed Sc/Si multi-layer reflecting mirror and the 2k×2k EUV CMOS imaging camera and to take full-disk solar images at the Ne VII 46.5 nm spectral line with a filter width of~3 nm.SUTRI employs a Ritchey-Chrétien optical system with an aperture of 18 cm.The on-orbit observations show that SUTRI images have a field of view of~416×416 and a moderate spatial resolution of~8″without an image stabilization system.The normal cadence of SUTRI images is 30 s and the solar observation time is about16 hr each day because the earth eclipse time accounts for about 1/3 of SATech-01's orbit period.Approximately15 GB data is acquired each day and made available online after processing.SUTRI images are valuable as the Ne VII 46.5 nm line is formed at a temperature regime of~0.5 MK in the solar atmosphere,which has rarely been sampled by existing solar imagers.SUTRI observations will establish connections between structures in the lower solar atmosphere and corona,and advance our understanding of various types of solar activity such as flares,filament eruptions,coronal jets and coronal mass ejections.Xianyong Bai Hui Tian Yuanyong Deng Zhanshan Wang Jianfeng Yang Xiaofeng Zhang Yonghe Zhang Runze Qi Nange Wang Yang Gao Jun Yu Chunling He Zhengxiang Shen Lun Shen Song Guo Zhenyong Hou Kaifan Ji Xingzi Bi Wei Duan Xiao Yang Jiaben Lin Ziyao Hu Qian Song Zihao Yang Yajie Chen Weidong Qiao Wei Ge Fu Li Lei Jin Jiawei He Xiaobo Chen Xiaocheng Zhu Junwang He Qi Shi Liu Liu Jinsong Li Dongxiao Xu Rui Liu Taijie Li Zhenggong Feng Yamin Wang Chengcheng Fan Shuo Liu Sifan Guo Zheng Sun Yuchuan Wu Haiyu Li Qi Yang Yuyang Ye Weichen Gu Jiali Wu Zhe Zhang Yue Yu Zeyi Ye Pengfeng Sheng Yifan Wang Wenbin Li Qiushi Huang Zhong Zhang 2023Research in Astronomy and Astrophysics2023,23,6:1
12The linear ar- boricity of planar graphs with no short cycles 显示文摘Wu Jianliang Hou Jianfeng Liu Guizhen 2007Theo- retical Computer Science2007,381,123:1
13Antioxidant enzyme activity and chilling injury during low-temperature storage of Kiwifruit cv. Hongyang exposed to gradual postharvest cooling显示文摘Qingzhen Yang Jingping Rao Shunchao Yi Kun Meng Jianfeng Wu Yali Hou 2012Horticulture, Environment, and Biotechnology2012,,6:1
14Neuroprotective effects of willed-movement therapy in a rat model of cerebral ischemia/reperfusion显示文摘The present study established rat models of middle cerebral artery ischemia/reperfusion using the thread method.Rats performed willed-movement(climbing a ladder or wall in a box) when induced by food and water.Results revealed that Longa scores of neurological deficits significantly de-creased in the willed-movement group at 15 days after reperfusion,while expression of glial fibrillary acidic protein,neurotrophic factor-3,and growth-associated protein-43 significantly increased at 7 and 15 days after reperfusion.Results suggested that willed-movement ameliorated neurological deficits by increasing expression of glial fibrillary acidic protein,neurotrophic factor-3,and growth-associated protein-43.Deren Hou Jianfeng Liu Jinfeng Deng Zhongyang Hu Chao Feng Haixia Zhu 2011Neural Regeneration Research2011,6,35:1
15Total colorings of planar graphs without small cycles显示文摘Hou Jianfeng Zhu Yan Liu Guizhen 0,,2:1
16Synthesis and properties research of aqueous acrylate/polyurethane composites emulsion显示文摘Hou Pengtao Le Yuan Chen Jianfeng 2009Journal of Beijing University ol Chemical Technology(Natural Science Edition)2009,36,11:1
17Total colorings and list total colorings of planar graphs without intersecting 4-cycles显示文摘Liu Bin Hou Jianfeng Wu Jianliang 0,,20:1
18Some results on total colorings of planar graphs显示文摘Hou Jianfeng Liu Guizhen Xin Yongxun 0,,3:1
19Some results on list total colorings of planar graphs 显示文摘HOU JIANFENG LIU GUIZHEN WU JIANLIANG 2007Lecture NotesComput Sci2007,,4489:1
20A Self‑Powered,Highly Embedded and Sensitive Tribo‑Label‑Sensor for the Fast and Stable Label Printer显示文摘Label-sensor is an essential component of the label printer which is becoming a most significant tool for the development of Internet of Things(IoT).However,some drawbacks of the traditional infrared label-sensor make the printer fail to realize the high-speed recognition of labels as well as stable printing.Herein,we propose a selfpowered and highly sensitive tribo-label-sensor(TLS)for accurate label identification,positioning and counting by embedding triboelectric nanogenerator into the indispensable roller structure of a label printer.The sensing mechanism,device parameters and deep comparison with infrared sensor are systematically studied both in theory and experiment.As the results,TLS delivers 6 times higher signal magnitude than traditional one.Moreover,TLS is immune to label jitter and temperature variation during fast printing and can also be used for transparent label directly and shows long-term robustness.This work may provide an alternative toolkit with outstanding advantages to improve current label printer and further promote the development of IoT.Xindan Hui Zhongjie Li Lirong Tang Jianfeng Sun Xingzhe Hou Jie Chen Yan Peng Zhiyi Wu Hengyu Guo 2023Nano-Micro Letters2023,15,2:1
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