http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Kazdan-Warner equation on infinite graphs
Huabin Ge,Wenfeng Jiang 대한수학회 2018 대한수학회지 Vol.55 No.5
We concern in this paper the graph Kazdan-Warner equation \begin{equation*} \Delta f=g-he^f \end{equation*} on an infinite graph, the prototype of which comes from the smooth Kazdan-Warner equation on an open manifold. Different from the variational methods often used in the finite graph case, we use a heat flow method to study the graph Kazdan-Warner equation. We prove the existence of a solution to the graph Kazdan-Warner equation under the assumption that $h\leq0$ and some other integrability conditions or constrictions about the underlying infinite graphs.
Huabin Zhang,Yuze Bai,Xuejia Shi,Linxia Sun,Zhengfei Wang,Xiaobing Wu 한국유전학회 2018 Genes & Genomics Vol.40 No.2
Passeriformes is the largest group within aves and the phylogenetic relationships between Passeriformes have caused major disagreement in ornithology. Particularly, the phylogenetic relationships between muscicapoidea and sylvioidea are complex, and their taxonomic boundaries have not been clearly defined. Our aim was to study the status of two bird species: Tarsiger cyanurus and Phoenicurus auroreus. Furthermore, we analyzed the phylogenetic relationships of Passeriformes. Complete mitochondrial DNA (mtDNA) sequences of both species were determined and the lengths were 16,803 (T. cyanurus) and 16,772 bp (P. auroreus), respectively. Thirteen protein-coding genes, 22 tRNA genes, two rRNA genes, and one control region were identified in these mtDNAs. The contents of A and T at the base compositions was significantly higher than the content of G and C, and this AT skew was positive, while the GC skew was negative. The monophyly of Passeriformes is divided into four major clades: Corvoidea, Sylvioidea, Passeroidea, and Musicicapoidea. Paridae should be separated from the superfamily Sylvioidea and placed within the superfamily Muscicapoidea. The family Muscicapidae and Corvida were paraphyly, while Carduelis and Emberiza were grouped as a sister taxon. The relationships between some species of the order passeriformes may remain difficult to resolve despite an effort to collect additional characters for phylogenetic analysis. Current research of avian phylogeny should focus on adding characters and taxa and use both effectively to obtain a better resolution for deeper and shallow nodes.
Huabin Chen,Qunjia Wan 대한수학회 2022 대한수학회지 Vol.59 No.2
In this paper, the existence and uniqueness for the global solution of neutral stochastic functional differential equation is investigated under the locally Lipschitz condition and the contractive condition. The implicit iterative methodology and the Lyapunov-Razumikhin theorem are used. The stability analysis for such equations is also applied. One numerical example is provided to illustrate the effectiveness of the theoretical results obtained.
Unified (α, β)-flows on triangulated manifolds with two and three dimensions
Huabin Ge,Ming Li 대한수학회 2017 대한수학회보 Vol.54 No.4
In this paper, we introduce a framework of $(\alpha,\beta)$-flows on triangulated manifolds with two and three dimensions, which unifies several discrete curvature flows previously defined in the literature.
Huabin Zhou,Gaoqiang Liu,Furu Huang,Xiangting Wu,Hailong Yang 대한약학회 2014 Archives of Pharmacal Research Vol.37 No.12
Polysaccharides from Ganoderma lucidumshowed multiple biological activities, such as immunomodulating,antitumor, antioxidant, and hepatoprotectiveactivity, etc. Adlay oil was added into the media to enhancepolysaccharide production by submerged culture of G. lucidumin this work. The results revealed the optimal concentrationof adlay oil was 1.5 % for polysaccharideproduction of G. lucidum. Analysis of the polysaccharidecomponents confirmed that no novel components werebiosynthesized by the addition of adlay oil. The mainfraction of extracellular polysaccharide, GLEP-2, wasisolated from the submerged culture broth of G. lucidum byethanol precipitation, filtration, DEAE cellulose-52 andSepharose CL-6B chromatography. GLEP-2, which wascomposed of glucose, galactose, mannose, arabinose, andrhamnose in a ratio of 332:55:32:13:3 respectively, had anaverage molecular weight of *2.08 9 104 Da. The bioactivitytests demonstrated that GLEP-2 enhanced the Tlymphocyte proliferation significantly at a concentration of200 lg/mL and B lymphocyte proliferation at lower concentrationsof 50 lg/mL. The results suggest polysaccharidesfrom the submerged culture of G. lucidum arepotential candidates for further development and possiblecommercial applications, especially in the pharmaceuticaland functional foods industries.
KAZDAN-WARNER EQUATION ON INFINITE GRAPHS
Ge, Huabin,Jiang, Wenfeng Korean Mathematical Society 2018 대한수학회지 Vol.55 No.5
We concern in this paper the graph Kazdan-Warner equation $${\Delta}f=g-he^f$$ on an infinite graph, the prototype of which comes from the smooth Kazdan-Warner equation on an open manifold. Different from the variational methods often used in the finite graph case, we use a heat flow method to study the graph Kazdan-Warner equation. We prove the existence of a solution to the graph Kazdan-Warner equation under the assumption that $h{\leq}0$ and some other integrability conditions or constrictions about the underlying infinite graphs.
UNIFIED (α, β)-FLOWS ON TRIANGULATED MANIFOLDS WITH TWO AND THREE DIMENSIONS
Ge, Huabin,Li, Ming Korean Mathematical Society 2017 대한수학회보 Vol.54 No.4
In this paper, we introduce a framework of (${\alpha},{\beta}$)-flows on triangulated manifolds with two and three dimensions, which unifies several discrete curvature flows previously defined in the literature.
Sun, Huabin,Xu, Yong,Noh, Yong-Young IEEE 2017 IEEE transactions on electron devices Vol.64 No.5
<P>Signal processing is fundamental to the modern information society. Sensing and signal processing of various biological signals using human body conformable flexible organic integrated circuits have been actively researched to enable continuous health condition monitoring via wearable devices. To amplify very small electrical biological signals from humans, high performance flexible organic amplifiers are required. In this paper, we briefly review the principles and recent progresses of printable organic amplifiers, including materials, processes, and circuits.</P>
Yuntao Qiu,Huabin Chen 제어·로봇·시스템학회 2023 International Journal of Control, Automation, and Vol.21 No.2
In this paper, the problems on the exponential stability in p-th (p ≥ 2)-moment and the almost sure exponential stability for neutral stochastic differential delay equation with Markovian switching and impulses are analyzed. By establishing an impulsive delay integral inequality, the Lyapunov theorem on the exponential stability in p-th (p ≥ 2)-moment is given. Then, by using the Borel-Cantelli lemma, the almost sure exponential stability theorem is also proved. Two major advantages of these two results are that the differentiability or continuity of the delay function is not required, and that while considering the concerned problem, the difficulty coming from the simultaneous presence of the neutral item, the impulsive disturbance and the stochastic perturbations is overcome. An example is provided to examine the effectiveness and potential of the theoretic results obtained.
Qiwei Yang,Huabin Xing,Kun Yu,Baogen Su,Zongbi Bao,Yiwen Yang,Qilong Ren 한국공업화학회 2013 Journal of Industrial and Engineering Chemistry Vol.19 No.5
Chloride anion-based ionic liquids (ILs) have unique importance among various ILs. Nevertheless, they are usually very viscous, and the study on their mixtures with molecular solvent is important for their practical application. In this work, the viscosities and conductivities of the binary mixtures of 1-butyl-3-methylimidazolium chloride and several protic/aprotic solvents were measured, and the underlying information about intermolecular interaction and microscopic structure was discussed. The result showed that the molecular solvents which have relatively high dielectric constant and hydrogen-bond acidity will be more efficient in promoting the dissociation of chloride anion-based ILs and improving the transport properties of corresponding applications.