SALT-INDUCED CHLOROPLAST PROTEIN (SCP) is Involved in Plant Tolerance to Salt Stress in Arabidopsis

Yong Zhuang,Yangxuan Liu,Yuxiang Li,Ming Wei,Yuying Tang,Penghui Li,Zhijian Liu,Hui Li,Weizao Huang,Songhu Wang 한국식물학회 2019 Journal of Plant Biology Vol.62 No.6

Soil salinization threats the agricultural productionand food security worldwide. Salt stress induced plantsenescence and chloroplast degradation. However, it remainslargely unknown how the chloroplast-localized proteins affectplant response to salt stress. Here, we characterized a novelgene (At5g39520) in Arabidopsis, which is induced by saltstress and encodes a chloroplast-localized protein. Thus, thisgene was named SALT-INDUCED CHLOROPLAST PROTEIN(SCP). A T-DNA insertion mutant of SCP gene (scp-1)showed the enhanced tolerance to salt stress, as indicated bythe increased survival rates, fresh weights and chlorophyllcontents compared with wild type plants under salt treatment. Salt-induced leaf senescence was also delayed in scp-1 mutant. The scp-1 complementation line and SCP overexpressionlines displayed the hypersensitivity to salt stress. The qRTPCRanalysis indicated that the transcripts of CHLOROPLASTVESICULATION (CV), which mediates stress-inducedchloroplast degradation, were altered in scp-1 mutant andSCP overexpression lines. Taken together, our results suggestthat SCP gene plays a negative role in response to salt stress andhas potential application for genetic modification of improvingplant tolerance to salt stress.

Experiment Investigation on Fluid Transportation Performance of Propellant Acquisition Vanes in Microgravity Environment

Zhuang, Baotang,Li, Yong,Luo, Xianwu,Pan, Halin,Ji, Jingjing Korean Society for Fluid machinery 2014 International journal of fluid machinery and syste Vol.7 No.1

The propellant acquisition vane (PAV) is a key part of a vane type surface tension propellant management device (PMD), which can manage the propellant effectively. In the present paper, the fluid transportation behaviors for five PAVs with different sections were investigated by using microgravity drop tower test. Further, numerical simulation for the propellant flow in a PMD under microgravity condition was also carried out based on VOF model, and showed the similar flow pattern for PAVs to the experiment. It is noted that the section geometry of PAVs is one of the main factors affecting the fluid transportation behavior of PMD. PAVs with bottom length ratio of 5/6 and 1/2 have larger propellant transportation velocity. Based on the experiments, there were two stages during the process of propellant transportation under microgravity environment: liquid relocation and steady transportation stage. It is also recognized that there is a linear correlation between liquid transportation velocity and relative time's square root. Those results can not only provide a guideline for optimization of new vane type PMDs, but also are helpful for fluid control applications in space environment.

Aberrant Expression of Pim-3 Promotes Proliferation and Migration of Ovarian Cancer Cells

Zhuang, Hao,Zhao, Man-Yin,Hei, Kai-Wen,Yang, Bai-Cai,Sun, Li,Du, Xue,Li, Yong-Mei Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.8

Pim kinase-3(Pim-3), a member of serine/threonine protein kinases, has been implicated in multiple human cancers and involved in Myc-induced tumorigenesis. However, little is known regarding its expression and biological function in human ovarian cancer. In this study we showed that the clinical significance and biological functions of Pim-3 in ovarian cancer and found that higher Pim-3 mRNA level are detected in ovarian cancer tissues than those in normal ovarian tissues. There are significant correlations between higher Pim-3 expression levels with the FIGO stage, histopathological subtypes, and distant metastasis in ovarian cancer patients. Lentivirus-mediated gene overexpression of Pim-3 significantly promotes the proliferation and migration of SKOV3 cell lines. Furthermore, MACC1 and Pim-3 expression were significantly correlated in human ovarian cancer cells, and overexpression of Pim-3 in ovary cancer cells increased MACC1 mRNA and protein expression. The data indicate that Pim-3 acts as a putative oncogene in ovary cancer and could be a viable diagnostic and therapeutic target for ovarian cancer.

Optimal Deployment of Water Resources Based on Multi-Objective Genetic Algorithm

Yong Liu,Yongrui Zhuang,Nan Lu 보안공학연구지원센터 2016 International Journal of u- and e- Service, Scienc Vol.9 No.12

Freshwater is limited resource and it is shrinking rapidly due to the urbanization, contamination and climate change impacts. As a result, raising water demands and insufficient freshwater resources become the main reasons of water conflicts. Optimal water allocation model would be an effective method to achieve the optimal allocation of limited water resources, in terms of the conjunctive use planning and management. In this paper, a multi-objective optimal water resources allocation model is proposed and the social, economic and environmental benefits are regarded as the optimal objective functions. The presented model is applied to a case of planning water resources management in China. Furthermore, simulations and optimization modeling methods have been conducted to solve the allocation model. The Gray Model has been used to predict the fresh water demand and storage of different user parts in 2025 and the Genetic Algorithm technique has been employed to solve the multi-objective problem. The obtained results illustrate how to allocate the quantity of different water resource to different users while achieving maximum social, economic and environmental benefits, which is valuable and helpful to develop a water resources optimal allocation strategy.

Image post-processed approaches for cavitating flow in orifice plate

Yong Wang,Suguo Zhuang,Houlin Liu,Zhenjiang Zhao,Matevž Dular,Jian Wang 대한기계학회 2017 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.31 No.7

A comprehensive investigation on cavitating flow and cavitation-induced erosion was performed experimentally in an orifice plate system. Three image post-processed approaches were applied to analyze the test data, in order to obtain the cavitation characteristics. The cavitating flow pattern was studied by high speed images. In one cavitation developing period, there could be three distinct cavitation clouds, whereas the second one is not fully developed. The first image post-processing approach was applied to obtain the mean value and standard deviation distribution, which indicate the erosion area may cover almost all the cavitation developing route and the most vulnerable erosion area locates near the cavitation collapse site. It is coincides with the erosion tests analyzed through the pit-count algorithm approach. The cavitation circulation frequency was invested via PSD analysis approach. It shows that the frequency linearly decreasing with decreasing cavitation number. Additionally, the cavitation intensity effect on cavitation erosion was quantitatively studied based. It is found that the damages are strongly enhanced when increasing the flow velocity. Moreover, the growth rate of eroded pits number is actually stepwise instead of linear (similar to our previous work in a venturi tube), which supports the idea that the cloud cavitation collapse is the primary reason for erosion. The present approaches applied here shows good potential ability of investigating cavitating flows and can be utilized for other apparatus.

Population-Stratified Analysis of Bone Mineral Density Distribution in Cervical and Lumbar Vertebrae of Chinese from Quantitative Computed Tomography

Yong Zhang,Zhuang Zhou,Cheng’ai Wu,Danhui Zhao,Chao Wang,Xiaoguang Cheng,Wei Cai,Ling Wang,Yangyang Duanmu,Chenxin Zhang,Wei Tian 대한영상의학회 2016 Korean Journal of Radiology Vol.17 No.5

Objective: To investigate the bone mineral density (BMD) of cervical vertebrae in a population-stratified manner and correlate with that of the lumbar vertebrae. Materials and Methods: Five hundred and ninety-eight healthy volunteers (254 males, 344 females), ranging from 20 to 64 years of age, were recruited for volumetric BMD (vBMD) measurements by quantitative computed tomography. Basic information (age, height, weight, waistline, and hipline), and vBMD of the cervical and lumbar vertebrae (C2–7 and L2–4) were recorded. Comparisons among sex, age groups and different levels of vertebrae were analyzed using analysis of variance. Linear regression was performed for relevance of different vertebral levels. Results: The vBMD of cervical and lumbar vertebrae was higher in females than males in each age group. The vBMD of the cervical and lumbar vertebrae in males and the vBMD of lumbar vertebrae in females decreased with aging. In each age group, the vBMD of the cervical vertebrae was higher than that of the lumbar vertebrae with gradual decreases from C2 to C7 except for C3; moreover, the vBMD of C6 and C7 was significantly different from that of C2–5. Correlations of vBMD among different cervical vertebrae (females: r = 0.62–0.94; males: r = 0.63–0.94) and lumbar vertebrae (males: r = 0.93–0.98; females: r = 0.82–0.97) were statistically significant at each age group. Conclusion: The present study provided normative data of cervical vertebrae in an age- and sex-stratified manner. Sex differences in vBMD prominently vary with age, which can be helpful to design a more comprehensive pre-operative surgical plan.

Passengers’ Behavioral Intentions Towards Congestion: Observational Study of the Entry Restrictions at Traffic Bottleneck

Yifan Zhuang,Xiao dong Zhou,Yong Ni,Lizhong Yang 대한토목학회 2017 KSCE JOURNAL OF CIVIL ENGINEERING Vol.21 No.6

Stairs and escalators are usually considered as the commonest bottleneck positions in metro platform. Congestion has taken place constantly due to passengers' selection behaviors between stairs and escalator, which often cause delays and affect the efficiency of transfer stations. Therefore, this study explores this relationship through the effect of clusters in front of escalator on choice behaviors, by conducting a field observation with varying length of entry restrictions during peak hours. The empirical time data of each passenger entering the stairway or escalator were extracted from the videotapes semi-manually. It was found that proper terrain restraints (certain lengths of fence) could optimize the flow rate pattern of stairway and escalator systems and raise the utilization of stairway, because it reduced conflicts and promoted an orderly movement of the pedestrians in front of escalator according to the analysis of the density of pedestrian flow calculated in waiting area. Besides, the percentage of choosing stairs increased with the density, which was in good agreement with the binary logistic model when the fence was 2 m or 2.5 m long. This study implicates that improvement in service quality of pedestrian facilities need to integrate with entry restrictions on congested bottleneck for effective behavior change. The findings of this study would be helpful for concerned authorities in considering the appropriate attributes of pedestrian facilities for improvement, and other related policy measures to make significant promotion of safe, quick and efficient transport infrastructures.

Bisorption of Organic Compounds by Spirulina Subsalsa

Chen, Yong-Sheng,Zhuang, Yuan-Yi,Dai, Shu-Gui CHOSUN UNIVERSITY 1997 Basic Science and Engineering Vol.1 No.1

In this paper, the biosorption of 13 organic compounds was investigated by using biomass of nonliving, dried algae Spirulina subsalsa as sorbent. The results showed that: the biosorption of `13 organic compounds could be described by the Freundlich isoterm. The isoterm binding constants suggested that the biosorption capacity series was phenlo > o-dihydroxy benzene > p-dihydroxy benzene > o-aminophenol > chlorophenol > 2,4-dichlorophenol for 6 phenolic compounds and alkaline blue BO > active blue KN-R > acidic red 4BS > black G > brown MM > blue 5B > black ATT for 7 dyes. The biosorption constants (lgk) of above 6 phenolic compounds showed a good linear correlation to their molecular connectivity index. Keywords: biosorption, biosorbent, phenolic compounds, dye, algae, Spirulina subsalsa, molecular commectivity index

Target Tracking Algorithm with Application to Naval Fire Control Technology

Huiqiang Zhuang,Hongping Gao,Chang Ho Yu,Yong Il Jin,Jae Weon Choi,Tae Il Seo,Eui Jin Kim 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8

This paper presents the target tracking technology applied to the fire control system (FCS) which is used onwarships. This FCS has the capability to track the targets moving in both high-speed-high-maneuver and low or non-maneuver motions with hybrid uncertainties. Here uses the variable structure interacting multiple model (VSIMM) algorithm as the core tracking algorithm because of its broad adaptability of target tracking. In VSIMM, the model-set is made adaptive by switching among a number of predetermined groups of models, and more cost-effective than fixed-structure IMM (FSIMM) estimator. The important applications of VSIMM estimator include the model-group adaptation logic and model-group design. This paper chose Kalman filter as the sub-filter of VSIMM algorithm. At last, this paper will present an Activation-Only VSIMM estimator as the simplified form of VSIMM.

Experiment Investigation on Fluid Transportation Performance of Propellant Acquisition Vanes in Microgravity Environment

Baotang Zhuang,Yong Li,Xianwu Luo,Halin Pan,Jingjing Ji 한국유체기계학회 2014 International journal of fluid machinery and syste Vol.7 No.1

The propellant acquisition vane (PAV) is a key part of a vane type surface tension propellant management device (PMD), which can manage the propellant effectively. In the present paper, the fluid transportation behaviors for five PAVs with different sections were investigated by using microgravity drop tower test. Further, numerical simulation for the propellant flow in a PMD under microgravity condition was also carried out based on VOF model, and showed the similar flow pattern for PAVs to the experiment. It is noted that the section geometry of PAVs is one of the main factors affecting the fluid transportation behavior of PMD. PAVs with bottom length ratio of 5/6 and 1/2 have larger propellant transportation velocity. Based on the experiments, there were two stages during the process of propellant transportation under microgravity environment: liquid relocation and steady transportation stage. It is also recognized that there is a linear correlation between liquid transportation velocity and relative time's square root. Those results can not only provide a guideline for optimization of new vane type PMDs, but also are helpful for fluid control applications in space environment.