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Exploration on the Laws of Urbanization and Rural Community Development
Kang Weibo,Song Mingshuang 한국도시행정학회 2013 한국도시행정학회 학술발표대회 논문집 Vol.2013 No.9
Urbanization is an inevitable historical trend; and rural community is a significant symbol of rural urbanization. In order to keep rural urbanization developing along the healthy track, we should construct rural community under the background of urbanization, with the guidance of scientific outlook on development, and with full consideration of accumulation function of the rural community. Meanwhile, we should focus our efforts firmly on the rural community planning and development and take them as the key points, choose facilities construction to be the starting point, take developing industries in community construction as the supporting point, scientifically solve the problem of land and fund leverages in rural community construction, properly resettle the needy households in community construction, and establish a long-term mechanism of the rural community construction development.
Energy Landscape Paving with Local Search for Global Optimization of the BLN Off-lattice Model
Jingfa Liu,Weibo Huang,Wenjie Liu,Yuanyuan Sun,Beibei Song,Mao Chen 한국물리학회 2014 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.64 No.4
The optimization problem for finding the global minimum energy structure is one of the mainproblems of protein structure prediction and is known to be an NP-hard problem in computationalmolecular biology. The low-energy conformational search problem in the hydrophobic-hydrophilicneutral(BLN) off-lattice model is studied. We convert the problem into an unconstrained optimizationproblem by introducing the penalty function. By putting forward a new updating mechanismof the histogram function in the energy landscape paving (ELP) method and incorporating heuristicconformation update strategies into the ELP method, we obtain an improved ELP (IELP) method. Subsequently, by combining the IELP method with the local search (LS) based on the gradient descentmethod, we propose a hybrid algorithm, denoted by IELP-LS, for the conformational searchof the off-lattice BLN model. Simulation results indicate that IELP-LS can find lower-energy statesthan other methods in the literature, showing that the proposed method is an effective tool forglobal optimization in the BLN off-lattice protein model.
Li, Lifang,Shao, Chen,Song, Weibo,Lynn, Denis H,Chen, Zigui,Shin, Mann Kyoon Society for General Microbiology 2009 International journal of systematic and evolutiona Vol.59 No.2
<P>The genus Kiitricha was long assumed to be the most primordial taxon in the Stichotrichia [hypotrichs sensu lato (s. l.)] based on its morphological features and was considered to be an intermediate between heterotrichs and the traditional hypotrichous assemblage. In order to evaluate the phylogenetic position of Kiitricha within the Hypotrichia, we sequenced the small-subunit rRNA gene and the alpha-tubulin gene for a Qingdao population of Kiitricha marina. Phylogenetic trees were constructed and compared to morphological and morphogenetic data. The results show that (i) Kiitricha is positioned near Phacodinium, both of which always form a sister clade to the assemblage including Stichotrichia, Hypotrichia, Oligotrichia and Choreotrichia, (ii) Kiitricha, which may represent an intermediate between heterotrichs (s. l.) and the Stichotrichia-Hypotrichia complex, is probably an ancestor-like form of the latter group and (iii) in contrast to morphological characters, both molecular and ontogenetic data support the separation of Kiitricha from the hypotrichs (s. l.). Thus, Kiitricha might be placed in the class Spirotrichea at about subclass level, next to Phaconidiidia, Hypotrichia and Stichotrichia, which supports the establishment of a new subclass Protohypotrichia n. subclass within the class Spirotrichea, with characterizations including slightly differentiated somatic ciliature (i.e. cirri on the ventral side generally uniform and non-grouped, no clearly defined marginal cirral rows, ciliature on the dorsal side mixed with cirri and dikinetids, no clearly differentiated dorsal kineties) and a unique but intermediate morphogenetic pattern of cortical structures between Hypotrichia and Stichotrichia.</P>
Effects of face-sheet materials on the flexural behavior of aluminum foam sandwich
Wei Xiao,Chang Yan,Weibo Tian,Weiping Tian,Xuding Song 국제구조공학회 2018 Steel and Composite Structures, An International J Vol.29 No.3
Properties of AFS vary with the changes in the face-sheet materials. Hence, the performance of AFS can be optimized by selecting face-sheet materials. In this work, three types of face-sheet materials representing elastic-perfectly plastic, elastic-plastic strain hardening and purely elastic materials were employed to study their effects on the flexural behavior and failure mechanism of AFS systematically. Result showed face-sheet materials affected the failure mechanism and energy absorption ability of AFS significantly. When the foam cores were sandwiched by aluminum alloy 6061, the AFS failed by facesheet yielding and crack without collapse of the foam core, there was no clear plastic platform in the Load-Displacement curve. When the foam cores were sandwiched by stainless steel 304 and carbon fiber fabric, there were no face-sheet crack and the sandwich structure failed by core shear and collapse, plastic platform appeared. Energy absorption abilities of steel and carbon fiber reinforced AFS were much higher than aluminum alloy reinforced one. Carbon fiber was suggested as the best choice for AFS for its light weight and high performance. The versus strength ratio of face sheet to core was suggested to be a significant value for AFS structure design which may determine the failure mechanism of a certain AFS structure.
Application of Biophysical Properties of Meridians in the Visualization of Pericardium Meridian
Xiong Feng,Xu Ruimin,Li Tongju,Wang Jinyu,Hu Qingchuan,Song Xiaojing,Wang Guangjun,Su Huanhuan,Jia Shuyong,Wang Shuyou,Zhu Zongxiang,Zhang Weibo 사단법인약침학회 2023 Journal of Acupuncture & Meridian Studies Vol.16 No.3
Background: The biophysical properties of the meridian system, an important concept of traditional Chinese medicine, include low impedance, resounding voice, and high acoustic conductance, all of which are helpful for elucidating the essence of meridians. Objectives: To visualize the human pericardium meridian (PC) based on the resounding voice property of meridians. Methods: Visualization of the PC was performed by injection of fluorescein sodium at the PC6 acupoint (Neiguan) on the PC. Before injection, percussion active points (PAPs) were identified by the virtue of their resounding voice properties. After injection, the trajectories of fluorescein migration throughout the body surface were recorded and analyzed. The distribution of fluorescein in the tissue was further studied using cross-sections of hind limbs of mini-pigs, in which fluorescein was injected into low impedance points. Results: The identified PAP lines were colocalized with PC. Following intradermal fluorescein injection, 1-3 fluorescent lines, which were unrelated to the arm veins, were observed in 7 of 10 participants; 85.4% of fluorescent signals were coincident with PAPs and their intensity had a negative correlation with the body mass index (r = –0.56, p = 0.045). Cross-sections showed a Y-shaped fluorescence pattern where the two migration lines on the surface were the two vertices of the “Y.” Conclusion: The trajectories of fluorescein in the body are suggestive of the anatomical structure of meridians. The PC is related to the deep horizontal interstitial channels that connect to the body surface through vertical interstitial spaces. These biophysical properties and techniques for meridian visualization are valuable for revealing the anatomical structure of meridians.
Li, Lifang,Thorsten, Stoeck,Kyoon, Shin Mann,Al-Rasheid Khaled, A S,Al-Khedhairy Bdulaziz, A,Song, Weibo Jointly published by Science China Press and Sprin 2010 Science China. Life sciences Vol.53 No.1
<P>The ciliate genus Protocruzia belongs to one of the most ambiguous taxa considering its systematic position, possible as a member of the classes Heterotrichea, Spirotrichea or Karyorelictea, which is tentatively placed into Spirotrichea in Lynn's 2008 system. To test these hypotheses, multigene trees (Bayesian inference, evolutionary distance, maximum parsimony, and maximum likelihood) were constructed using the small subunit rRNA (SSU rRNA) gene, internal transcribed spacer 2 (ITS2) and a protein coding gene (histone H4). All analyses agree that: (1) four morphotypes of Protocruzia from different geographical origins group together and form a monophyletic clade, which cannot be assigned to any of the eleven described ciliate classes; (2) it is invariably positioned on an isolated branch separated from the class Spirotrichea suggesting that this clade should be clearly removed from Spirotrichea; (3) this leads us to hypothesize that this taxon may indeed represent a lineage on a class rank. Based on the fact that it is, both morphologically and in molecular features, closely related to heterotrichs, Colpodea and Oligohymenophorea, Protocruziida might be an ancestral form for the subphylum Intramacronucleata in the evolutionary line from the class Heterotrichea (subphylum Postciliodesmatophora) to higher taxa.</P>