The Impact of Greenhouse Vegetable Farming Duration and Soil Types on Phytoavailability of Heavy Metals and Their Health Risk in Eastern China

Biao Huang,Lanqin Yang,Wenyou Hu 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

Classification and properties of quantum spin liquids on the hyperhoneycomb lattice

Huang, Biao,Choi, Wonjune,Kim, Yong Baek,Lu, Yuan-Ming American Physical Society 2018 Physical Review B Vol.97 No.19

<P>The family of 'Kitaev materials' provides an ideal platform to study quantum spin liquids and their neighboring magnetic orders. Motivated by the possibility of a quantum spin liquid ground state in pressurized hyperhoneycomb iridate beta-Li2IrO3, we systematically classify and study symmetric quantum spin liquids on the hyperhoneycomb lattice, using the Abrikosov-fermion representation. Among the 176 symmetric U(1) spin liquids (and 160 Z(2) spin liquids), we identify eight 'root' U(1) spin liquids in proximity to the ground state of the solvable Kitave model on the hyperhonecyomb lattice. These eight states are promising candidates for possible U (1) spin liquid ground states in pressurized beta-Li2IrO3. We further discuss physical properties of these eight U(1) spin liquid candidates, and show that they all support nodal-line-shaped spinon Fermi surfaces.</P>

Interplay of nonsymmorphic symmetry and spin-orbit coupling in hyperkagome spin liquids: Applications to Na4Ir3O8

Huang, Biao,Kim, Yong Baek,Lu, Yuan-Ming American Physical Society 2017 Physical Review B Vol.95 No.5

<P>Na4Ir3O8 provides a material platform to study three-dimensional quantum spin liquids in the geometrically frustrated hyperkagome lattice of Ir4+ ions. In this work, we consider quantum spin liquids on a hyperkagome lattice for generic spin models, focusing on the effects of anisotropic spin interactions. In particular, we classify possible Z(2) and U(1) spin liquid states, following the projective symmetry group analysis in the slave-fermion representation. There are only three distinct Z2 spin liquids, together with 2 different U(1) spin liquids. The nonsymmorphic space group symmetry of the hyperkagome lattice plays a vital role in simplifying the classification, forbidding 'pi-flux' or ' staggered-flux' phases in contrast to symmorphic space groups. We further prove that both U(1) states and one Z2 state among all 3 are symmetry-protected gapless spin liquids, robust against any symmetry-preserving perturbations. Motivated by the 'spin-freezing' behavior recently observed in Na4Ir3O8 at low temperatures, we further investigate the nearest-neighbor spin model with the dominant Heisenberg interaction subject to all possible anisotropic perturbations from spin-orbit couplings. We find that a U(1) spin liquid ground state with spinon Fermi surfaces is energetically favored over Z(2) states. Among all spin-orbit coupling terms, we show that only the Dzyaloshinskii-Moriya interaction can induce spin anisotropy in the ground state when perturbing from the isotropic Heisenberg limit. Our work paves the way for a systematic study of quantum spin liquids in various materials with a hyperkagome crystal structure.</P>

뮤지컬 <디에>의 마케팅 성공이 중국 뮤지컬 발전에 끼친 영향

황표(Biao Huang),한경훈(Kyung-Hoon Han) 한국콘텐츠학회 2021 한국콘텐츠학회논문지 Vol.21 No.1

본고는 중국 뮤지컬 역사상 최초로 세계 뮤지컬 시장에 진출한 <디에>의 마케팅 성공요인을 분석하였고, <디에>의 성공이 중국 뮤지컬 발전에 끼친 긍정적인 영향들을 조사하였다. 먼저 뮤지컬 마케팅의 중요한 다섯가지 요소를 분석기준으로 정하였고, 이를 통해 중국 뮤지컬 <디에>의 성공 원인을 분석한 결과 ‘포지셔닝’, ‘티켓 프로모션’, ‘PR 전략’, ‘프로듀서’, ‘OSMU’ 기법 등에 있어서 체계적인 전략 수립에 의한 마케팅 추진이 이루어졌음을 도출해낼 수 있었다. 중국 뮤지컬에 있어서 <디에>의 사례는 전문적인 마케팅에 의한 최초의 성공사례라고 볼 수 있으며, 이 같은 성과의 영향으로 중국 정부와 지자체의 뮤지컬 지원 제도들이 수립되었고 최근 몇 년 간 중국 뮤지컬은 질적인 면과 산업적인 면에서 빠르게 성장하고 있음을 확인할 수 있었다. 본 연구를 통해 중국 뮤지컬과 관련된 더 많은 학술 연구가 이루어지길 기대하며, 향후 작품성과 상품성을 고루 갖춘 뮤지컬 작품이 창출되는데 기여할 수 있는 자료로 쓰여 지는 것이 본 연구의 목적이다. This paper analyzed the marketing success factors of the Chinese musical 〈Butterfly〉, which entered the world musical market for the first time in the history of Chinese musicals, and investigated the positive effects of the success of 〈Butterfly〉 on the development of Chinese musicals. First, five important elements of musical marketing were determined as the analysis criteria and through this, we were able to derive that the marketing promotion was achieved by establishing a systematic strategy in the techniques of positioning, ticket promotion, PR strategy, producer, OSMU as the success factors of the musical 〈Butterfly〉. The case of 〈Butterfly〉 in Chinese musicals can be regarded as the first successful case by professional marketing. Due to the results of these achievements, the Chinese government and local musical support systems were established, and in recent years, Chinese musicals have been qualitative. It has been confirmed that Chinese musicals are growing rapidly in recent years in terms of quality and industry. It is expected that more academic studies related to Chinese musicals will be conducted through this study, and it is the purpose of this study to be used as a material that can contribute to the creation of Chinese musical with evenly high workability and productability in the future.

β-Catenin promotes long-term survival and angiogenesis of peripheral blood mesenchymal stem cells via the Oct4 signaling pathway

Wang Pengzhen,Deng Zhanyu,Li Aiguo,Li Rongsen,Huang Weiguang,Huang Weiguang,Chen Songsheng,Li Biao,Li Biao 생화학분자생물학회 2022 Experimental and molecular medicine Vol.54 No.-

Stem cell therapy has been extensively studied to improve heart function following myocardial infarction; however, its therapeutic potency is limited by low rates of engraftment, survival, and differentiation. Here, we aimed to determine the roles of the β-catenin/Oct4 signaling axis in the regulation of long-term survival and angiogenesis of peripheral blood mesenchymal stem cells (PBMSCs). These cells were obtained from rat abdominal aortic blood. We showed that β-catenin promotes the self-renewal, antiapoptotic effects, and long-term survival of PBMSCs by activating the Oct4 pathway through upregulation of the expression of the antiapoptotic factors Bcl2 and survivin and the proangiogenic cytokine bFGF and suppression of the levels of the proapoptotic factors Bax and cleaved caspase-3. β-Catenin overexpression increased Oct4 expression. β-Catenin knockdown suppressed Oct4 expression in PBMSCs. However, β-catenin levels were not affected by Oct4 overexpression or knockdown. Chromatin immunoprecipitation assays proved that β-catenin directly regulates Oct4 transcription in PBMSCs. In vivo, PBMSCs overexpressing β-catenin showed high survival in infarcted hearts and resulted in better myocardial repair. Further functional analysis identified Oct4 as the direct upstream regulator of Ang1, bFGF, HGF, VEGF, Bcl2, and survivin, which cooperatively drive antiapoptosis and angiogenesis of engrafted PBMSCs. These findings revealed the regulation of β-catenin in PBMSCs by the Oct4-mediated antiapoptotic/proangiogenic signaling axis and provide a breakthrough point for improving the long-term survival and therapeutic effects of PBMSCs.

Optimal design of micro-nano displacement driving mechanism for obtaining mechanical properties of micro structure

Biao Wang,Yan Huang,Yonghong Wang,Peizheng Yan,Qiaosheng Pan 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.5

The mechanical structures of micro-electro-mechanical systems (MEMS) are composed of different types of microstructures, and their mechanical properties are very important for the realisation and reliability of the system performance. One of the key problems in measuring the mechanical properties is the design and implementation of micro-nano displacement driving mechanisms. This paper describes a mechanism that adopts a two-level loading strategy, fast approach, and precise bending displacement loading structures, and has a theoretical analysis and optimal design based on optimal targets of resistance and displacement. The results show that the relative error is 6.98 % for the fast-approaching structure experiment and its optimal simulation and 4.26 % for the precise bending displacement loading structure (PBLS) experiment and its optimal simulation. The optimised micro-nano displacement loading mechanism can achieve optimal output performance under existing constraints.

Exceptional electrochemical performance of freestanding electrospun carbon nanofiber anodes containing ultrafine SnO_<i>x</i> particles

Zhang, Biao,Yu, Yang,Huang, Zhendong,He, Yan-Bing,Jang, Donghyuk,Yoon, Won-Sub,Mai, Yiu-Wing,Kang, Feiyu,Kim, Jang-Kyo The Royal Society of Chemistry 2012 ENERGY AND ENVIRONMENTAL SCIENCE Vol.5 No.12

<P>SnO<SUB><I>x</I></SUB>–carbon nanofiber (CNF) composites are synthesized using the electrospinning technique for use as freestanding electrodes in Li-ion batteries. The electrodes made from the composites carbonized at 750 °C (SnO<SUB><I>x</I></SUB>–CNF-750) with 14.5 wt% SnO<SUB><I>x</I></SUB> deliver a remarkable capacity of 674 mA h g<SUP>−1</SUP> after 100 cycles when discharged at 0.5 A g<SUP>−1</SUP>. This result is considered the highest among those reported in the literature for anodes made from similar electrospun carbon fibers containing SnO<SUB><I>x</I></SUB> nanoparticles. An increase in carbonization temperature to 950 °C (SnO<SUB><I>x</I></SUB>–CNF-950) results in a significant reduction of the particle content in the fiber due to aggregation of Sn to form nanoparticles external to the fibers, with concomitant degradation of capacities. The presence of amorphous SnO<SUB><I>x</I></SUB> particles at the atomic scale embedded in the conductive CNFs is thought to be responsible for the exceptional electrochemical performance of the SnO<SUB><I>x</I></SUB>–CNF-750 electrodes. These ultrafine particles facilitate the reaction Sn + <I>x</I>Li<SUB>2</SUB>O → SnO<SUB><I>x</I></SUB> + 2<I>x</I>Li<SUP>+</SUP> + 2<I>x</I>e<SUP>−</SUP>, making it highly reversible, which is confirmed by the growing peak currents with increasing scan rate indicated by cyclic voltammetry, and the absence of Sn–Sn bonds in the particles revealed by the extended X-ray absorption fine structure spectroscopy (EXAFS). Both the SnO<SUB><I>x</I></SUB> particle size and content in the fiber play important roles in controlling the rate and cyclic performance of the SnO<SUB><I>x</I></SUB>–CNF composite electrodes.</P> <P>Graphic Abstract</P><P>This paper presents novel SnO<SUB><I>x</I></SUB>–carbon nanofiber composites with embedded ultrafine SnO<SUB><I>x</I></SUB> particles. The composites deliver remarkable power/energy densities as well as excellent cyclic performance due to their high reversibility and stability. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c2ee23145j'> </P>

Combined experimental and computational investigation of the cavitating flow in an orifice plate with special emphasis on surrogate-based optimization method

Xianlin Li,Biao Huang,Tairan Chen,Ying Liu,Sicong Qiu,Jing Zhao 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.1

We investigated the influence of geometrical parameters of the orifice plate on the cavitation structures, and optimized these parameters by using a surrogate-based model with special emphasis on the concentration of hydroxyl radical released. The results show that for the orifice plate of the hydrodynamic cavitation system, the possible location of the inception of the cavity spreads to throat and divergent section of the venturi geometry. Based on the surrogate model and global sensitivity assessment, the diameter of throat D t and diameter of inlet D in significantly influenced the size of the cavity, while the length of throat L t had little effect on both cavitation intensity and flow rate. It should be noted that when L t is decreased, the size of cavity would be slightly decreased but the flow rate increased clearly. The increase of the diverging section is in favor of the size of cavity. By comparing the experimental measurements on the concentration of Methylene blue, the optimum geometry of the orifice plate for best cavitational activity is proposed.

Relationship Between the Prohibitin 3' Untranslated Region C > T Gene Polymorphism and Cancer Susceptibility - Results of a Meta-analysis

Zhou, Tian-Biao,Yin, Sheng-Sheng,Huang, Jian-Jian,Ou, Chao Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.7

Objective: The results from the published studies on the association between prohibitin 3' untranslated region C > T gene polymorphism and cancer risk are conflicting. This meta-analysis was performed to evaluate the relationship with cancer susceptibility overall, and to explore whether the T allele or TT genotype could become a predictive marker for cancer risk. Methods: Association studies were identified from the databases of PubMed, Embase, and Cochrane Library as of March 1, 2012, and eligible investigations were synthesized using the meta-analysis method. Results were expressed with odds ratios (OR) for dichotomous data, and 95% confidence intervals (CI) were also calculated. Results: Six investigations were identified for the analysis of association between the prohibitin 3' untranslated region C > T gene polymorphism and cancer risk, covering of 1,461 patients with cancer and 1,197 controls. There was a positive association between the T allele and cancer susceptibility (OR=1.20, 95% CI: 1.03-1.39, P=0.02), and CC homozygous might play a protective role (OR=0.80, 95% CI: 0.68-6.11, P=0.95). In the sub-group analysis, prohibitin 3' untranslated region C > T gene polymorphism and cancer risk appeared associated with the risk of breast cancer, but not ovarian cancer. Conclusions: Our results indicate that T allele is a significant genetic molecular marker to predict cancer susceptibility and CC genotype is protective, especially for breast cancer. However, more investigations are required to further clarify the association of the prohibitin 3' untranslated region C > T gene polymorphism with cancer susceptibility.

Effects of fluid thermophysical properties on cavitating flows

Tairan Chen,Biao Huang,Guoyu Wang,Kun Wang 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.10

We studied the thermo-fluid cavitating flows and evaluated the effects of physical properties on cavitation behaviors. The thermo-fluid(including liquid nitrogen, liquid hydrogen and hot water) cavitating flows around a 2D hydrofoil were numerically investigated. TheFavre-averaged Navier-Stokes equations with the enthalpy-based energy equation, transport equation-based cavitation model, and the k-ω SST turbulence model were applied. The thermodynamic parameter Σ, defined as ( 2 2 ) / ( 2 ) v l v l r L r C T e ¥ å = was used to assess thethermodynamic effects on cavitating flows. The results manifest that the thermal energy solution case yields a substantially shorter andmushier cavity attached on the hydrofoil due to the thermodynamic effects, which shows better agreement with the experimental data. The temperature drop inside the cavity decreases the local saturated vapor pressure and hence increases the local cavitation number; itcould delay or suppress the occurrence and development of the cavitation behavior. The thermodynamic effects can be evaluated bythermophysical properties under the same free-stream conditions; the thermodynamic parameter Σ is shown to be critical in accuratelypredicting the thermodynamic effects on cavitating flows. The surrogate-based global sensitivity analysis of liquid nitrogen cavitatingflow suggests that ρv, Cl and L could significantly influence temperature drop and cavity structure in the existing numerical framework,while ρv plays the dominant role on temperature drop when properties vary with changing temperature. The liquid viscosity ml slightlyaffects the flow structure but hardly affects the temperature distribution.