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Journal of Integrative Plant Biology 2018年第10期60卷 924-937页

作者： Qiongli wang Gao-Ping qu Xiangxiong Kong Yan Yan Jigang Li jing bo jin Key Laboratory of Plant Molecular Physiology Institute of Botanythe Chinese Academy of SciencesBeijing 1ooo93China University of the Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Plant Physiology and Biochemistry College of Biological SciencesChina Agricultural UniversityBeijing 100193China

The small ubiquitin-related modifier （SUMO） modification plays an important role in the regulation of abscisic acid （ABA） signaling, but the function of the SUMO protease, in ABA signaling, remains largely unknown. Here, we show that the SUMO protease, ASPI positively regulates ABA signaling. Mutations in ASPI resulted in an ABA-insensitive phenotype, during early seedling develop- ment. Wild-type ASP1 successfully rescued, whereas an ASPI mutant （C577S）, defective in SUMO protease activity, failed to rescue, the ABA-insensitive phenotype of asp1-1. Expression of ABI5 and MYB3o target genes was attenuated in asp^-I and our genetic analyses revealed that ASP1 may function upstream of ABI5 and MYB3o.

关键词： ASP ABA Arabidopsis small ubiquitin-related modifier protease ASP1 positively regulates abscisic acid signaling during early seedling development ABI Figure

Determination of optimum operating conditions for production of polyhydroxybutyrate by activated sludge submitted to dynamic feeding regime

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Chinese Science Bulletin 2009年第1期54卷 142-149页

作者： qu bo LIU JunXin State key Laboratory of Environment Aquatic Chemistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences P.O. Box 2871 Beijing 100085 China

Polyhydroxybutyrate (PHB) was produced by activated sludge in a two-stage process. In the first stage,the sludge with high storage potential was enriched in a sequencing batch reactor (SBR) operated by a dynamic feeding regime. The biosynthesis of PHB was sequentially accomplished in a batch reactor in the second stage. This article focused on the optimization of PHB content by evaluating the effects of three critical factors: Dissolved oxygen,pH and food-to-microorganism (F/M) ratio in the batch reactor. The results showed that the rate of substrate uptake,as well as the yield and content of PHB increased with the increase of dissolved oxygen concentration. The control of pH was not necessary under the weak alkaline condition for improvement of PHB content,except for the case in which the pH value was out of rang of 7.0 to 10.0. The enhanced F/M ratio favored PHB accumulation in the range of 1.0 to 4.5 C-mmol/C-mmol and the highest PHB content,64%,was achieved at 4.5 C-mmol/C-mmol. When F/M ratio was enhanced to 6.0 C-mmol/C-mmol,the phenomenon of utilizing simultaneously intracellular PHB and external substrate by sludge was observed,which resulted in a sharp decrease of PHB con-tent. The microscopic observation clearly confirmed that dynamic feeding regime was effective for selecting and enriching the sludge with a high storage potential.

关键词：聚羟基丁酯活性软泥动态加料机制最适宜条件

Bending of a Flexoelectric Semiconductor Plate

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Acta Mechanica Solida Sinica 2022年第3期35卷 434-445页

作者： Yilin qu Feng jin Jiashi Yang State Key Laboratory for Strength and Vibration of Mechanical Structures XVan Jiaotong UniversityXi’an 710049China Department of Mechanical and Materials Engineering University of Nebraska-LincolnLincolnNE 68588-0526USA

We study electromechanical responses of a flexoelectric semiconductor plate in bending under mechanical loads.A two-dimensional theory for classical bending without shear deformation is derived from the three-dimensional macroscopic theory of flexoelectric semiconductors.A simple solution is obtained for pure bending.A combination of physical and geometric parameters is introduced as a measure of the strength of the coupling between the mechanical load and the redistribution of charge carriers.A trigonometric series solution is obtained for a simply supported rectangular plate under a local normal mechanical load,which shows concentration of mobile charges and the formation of electric potential barriers near the loading *** results are fundamental to the mechanical manipulation of charge carriers in these *** also analyze the buckling of a simply supported rectangular plate under in-plane compressive forces.A series of buckling loads and modes are *** results show that flexoelectric coupling exhibits a stiffening effect and increases the buckling load,while semiconduction weakens the flexoelectric *** distributions of mobile charges in the first few buckling modes are presented.

关键词： Flexoelectric Plate Bending Buckling Flexotronic

Simulated perturbation in the sea-to-air flux of dimethylsulfi de and the impact on polar climate

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Journal of Oceanology and Limnology 2021年第1期39卷 110-121页

作者： bo qu Albert JGABRIC Rebecca JACKSON School of Science Nantong UniversityNantong 226219China School of Environment and Science Griffi th UniversityBrisbane 4111QLDAustralia

Marine biogenic emission of dimethylsulfi de(DMS)has been well recognized as the main natural source of reduced sulfur to the remote marine atmosphere and has the potential to aff ect climate,especially in the polar *** used a global climate model(GCM)to investigate the impact on atmospheric chemistry from a change to the contemporary DMS fl ux to that which has been projected for the late 21 st *** perturbed simulation corresponded to conditions that pertained to a tripling of equivalent CO 2,which was estimated to occur by year 2090 based on current worst-case greenhouse gas emission *** changes in zonal mean DMS fl ux were applied to 50°S–70°S Antarctic(ANT)and 65°N–80°N Arctic(ARC)*** results indicate that there are clearly diff erent impacts after perturbation in the southern and northern polar *** quantities related to the sulfur cycle show a higher increase in ***,most sulfur compounds have higher peaks in *** perturbation in DMS fl ux leads to an increase of atmospheric DMS of about 45%in ANT and 33.6%in *** sulfur dioxide(SO 2)vertical integral increases around 43%in ANT and 7.5%in ***(SO 4)vertical integral increases by 17%in ANT and increases around 6%in *** emissions increases by 21%in ANT and increases by 9.7%in ***,oxidation of DMS by OH increases by 38.2%in ARC and by 15.17%in *** optical depth(AOD)increases by 4%in the ARC and by 17.5%in the ANT,and increases by 22.8%in austral *** importance of the perturbation of the biogenic source to future aerosol burden in polar regions leads to a cooling in surface temperature of 1 K in the ANT and 0.8 K in the ***,polar regions in the Antarctic Ocean will have a higher off setting eff ect on warming after DMS fl ux perturbation.

关键词： dimethylsulfi de(DMS) sulfur dioxide DMS sea-to-air fl ux perturbation global climate model(GCM) polar region

Economic optimization on two time scales for a hybrid energy system based on virtual storage

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Journal of Modern Power Systems and Clean Energy 2018年第5期6卷 1004-1014页

作者： jingjie YANG Bingqing GUO bo qu China Electric Power Research Institute

This paper proposes an economic optimization method with two time scales for a hybrid energy system based on the virtual storage characteristic of a thermostatically controlled load(TCL). The optimization process includes two time scales in order to ensure accuracy and efficiency. Based on the forecast load and energy supply of the system, the first time scale is day-ahead economic operating optimization, carried out to determine the minimum operating cost for the whole day, and to find the period of greatest cost to which the second time scale optimization is applied. Using the virtual storage characteristic, the second time scale is short-term detailed optimization carried out for these particular hours. By dispatching thermal load in this period and adjusting energy supply accordingly, we can find the optimal economic performance, and customer requests are taken into account to ensure satisfaction. A case study in Tianjin, China illustrates the effectiveness of this method and proves that a TCL can make a great contribution to improving the economic performance of a hybrid energy system.

关键词： Economic optimization Hybrid energy system Virtual storage Two time scales Heating ventilation and air conditioning(HVAC) system

Numerical investigation of pollution transport and environmental improvement measures in a tidal bay based on a Lagrangian particle-tracking model

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Water Science and Engineering 2018年第1期11卷 23-38页

作者： En-jin Zhao Lin Mu Ke qu Bing Shi Xing-yue Ren Chang-bo Jiang College of Marine Science and Technology China University of GeosciencesWuhan School of Hydraulic Engineering Changsha University of Science and Technology College of Engineering Ocean University of China College of Civil Engineering and Architecture Hainan University

In view of the severity of oceanic pollution, based on the finite volume coastal ocean model （FVCOM）, a Lagrangian particle-tracking model was used to numerically investigate the coastal pollution transport and water exchange capability in Tangdao Bay, in China. The severe pollution in the bay was numerically simulated by releasing and tracking particles inside it. The simulation results demonstrate that the water exchange capability in the bay is very low. Once the bay has suffered pollution, a long period will be required before the environment can purify itself. In order to eliminate or at least reduce the pollution level, environmental improvement measures have been proposed to enhance the seawater exchange capability and speed up the water purification inside the bay. The study findings presented in this paper are believed to be instructive and useful for future environmental policy makers and it is also anticip

关键词： Particle-tracking Water exchange capability Lagrangian system Coastal pollution Tangdao bay FVCOM

Nondestructive acquisition of the micro-mechanical properties of high-speed-dry milled micro-thin walled structures based on surface traits

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Chinese Journal of Aeronautics 2021年第5期34卷 438-451页

作者： Da qu Wei ZHENG bo WANG bo WU Huajun CAO Hao YI The State Key Laboratory of Mechanical Transmissions Chongqing UniversityChongqing 400044China College of Mechanical Engineering Chongqing UniversityChongqing 400044China Aerospace Research Institute of Materials&Processing Technology Beijing 100076China Centre for Precision Engineering Harbin Institute of TechnologyHarbin 150001China

Requirements for the service performance of aeronautic microelectronic components are increasingly ***,sever issues,that the acquisition of the service performance such as micro-mechanical properties is destructive,limit the subsequent application of the tested *** this issue,this paper proposes a nondestructive acquisition method of the micro-mechanical properties of the accelerometer micro-components,based on analyzing surface *** select qualified components without damage,we firstly developed a quasi-static microtensile tester and then established a combination prediction model of mechanical properties based on micro-milled surface *** model works due to the thin-walled structure,which makes the machined surface traits have significant influences on the mechanical properties such as Young’s modulus,yield strength,tensile strength,and elongation at *** roughness,surface structure,and surface anisotropy are extracted to comprehensively present surface traits from different *** improving the practicability of the model,the principal component analysis(PCA)is adopted to reduce high-dimensional traits explanatory variable space into two dimensions,and regression analysis models are comparative established in predicting the mechanical *** analysis and error analysis are carried out to show the prediction *** maximum prediction error is about 10.62%,but the significance levels in the t-test of the predicted Young’s modulus and yield strength are not ***,kernel support vector regression(SVR)is imported to improve the prediction ability of the combination prediction *** residuals analysis result shows that SVR is effective in enhancing the prediction ability of this model.

关键词： Dimension reduction High-speed dry micro-milling Mechanical property Nondestructive acquisition SVR

Management of pseudomyxoma peritonei

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World Journal of Gastroenterology 2006年第38期12卷 6124-6127页

作者： Zhi-bo qu Lian-Xin Liu Department of General Surgery First Clinical College of Harbin Medical University Harbin 150001 Heilongjiang Province China

Pseudomyxoma peritonei (PMP) is a rare disease. It refers to a progressive disease process within the peritoneum which originates from the appendix or ovaries and is characterised by the production of copious amounts of mucinous fluid resulting in a “jelly belly”. If untreated the condition is fatal. The traditional approach to PMP is based on repeated surgical debulking procedures, often associated with intraperitoneal or systemic chemotherapy. The natural history of this disease has been drastically modified since the introduction of a new surgical approach defined as a peritonectomy procedure. This paper is to review the literature on this treatment strategy.

关键词： Pseudomyxoma peritonei Peritonectomy Hyperthermic intraperitoneal chemotherapy Sugarbaker procedures

Mobility of rhenium and selenium during chemical weathering and their implication for petrogenic organic carbon oxidation

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Science China Earth Sciences 2024年第3期67卷 740-750页

作者： Yuhong ZHANG jin WANG Yuanxin qu Chao ZHU Zhangdong jin State Key Laboratory of Loess and quaternary Geology Institute of Earth EnvironmentChinese Academy of SciencesXi'an 710061China University of Chinese Academy of Sciences Beijing 100049China Xi'an Institute for Innovative Earth Environment Research Xi'an 710061China Institute of Global Environmental Change Xi'an Jiaotong UniversityXi'an 710049China

The oxidative weathering of petrogenic organic carbon(OC_(petro)) is an important source of carbon dioxide(CO_(2)) into the atmosphere on geological timescales and significantly influences the carbon cycle and global climate change. However, at present, a robust proxy to assess OC_(petro)oxidation is lacking. Riverine rhenium(Re) has emerged as a potential proxy to trace OC_(petro)oxidation, but little is known about Re sources and its relationship with OC_(petro)oxidation. To better understand the robustness of this proxy, we analyzed a shale weathering profile from the early Cambrian Shuijingtuo Formation in Chengkou County, Chongqing City, to address the mobility of Re and selenium(Se) and their relationship with the oxidation of OC_(petro)by analyses of the elemental variation and sequential extraction. The results showed that the chemical index of alteration(CIA)increases from the fresh bedrock to the weathered sections, indicating enhanced weathering intensity. Based on the sequential extraction and mass transfer coefficients(τ), Re and Se mainly exist in the organic phase of shale and are paired lost with OC_(petro) during weathering, with no obvious correlation with sulfide minerals. Furthermore, the different proportions of Re and Se loss with OC_(petro) loss can be attributed to their different geochemical behaviors during weathering. Our study supports Re as a robust proxy to trace OC_(petro) oxidation, whereas Se is the potential one. In the future, combined studies on various sedimentary rock profiles with catchment basins are needed to determine the sources of riverine Re and Se and their relationships with OC_(petro) oxidation.

关键词： Rhenium and selenium Shale Mobility OC_(petro) Chemical weathering

湿地表层底泥溶解性有机质荧光组分特征及与真菌群落相关性

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光谱学与光谱分析 2025年第1期45卷 191-196页

作者：史传奇李艳孟令波胡钰金梁哈尔滨学院黑龙江省寒区湿地生态与环境研究重点实验室黑龙江哈尔滨150086 北京市农林科学院植物营养与资源环境研究所北京100097 东北农业大学资源与环境学院黑龙江哈尔滨150038

溶解性有机质(DOM)和微生物群落间具有紧密联系,DOM为微生物提供营养,微生物代谢可转化DOM,两者间相互作用共同影响着生态系统的物质循环与能量流动。采集北方寒区天然湿地(河流湿地,HL;湖泊湿地,HP)和人工湿地(水田,ST;鱼塘,YT)表层(0~... 详细信息

溶解性有机质(DOM)和微生物群落间具有紧密联系,DOM为微生物提供营养,微生物代谢可转化DOM,两者间相互作用共同影响着生态系统的物质循环与能量流动。采集北方寒区天然湿地(河流湿地,HL;湖泊湿地,HP)和人工湿地(水田,ST;鱼塘,YT)表层(0~15 cm)底泥样品,采用三维荧光光谱法和高通量测序技术,揭示不同类型湿地表层底泥DOM荧光光谱及真菌群落特征,并进一步分析其相关性。结果表明:表层底泥DOM荧光光谱共识别出4种荧光组分,包括类富里酸(C1)、类胡敏酸(C2)和类蛋白质(类色氨酸C3和类酪氨酸C4)。C1和C2成显著正相关,而与类蛋白质间相关性不显著。C1的相对浓度高于C2,C3和C4的相对浓度接近。YT中DOM浓度相对高于其余样品,HL和HP中C2和类蛋白质相对浓度具有显著差异,ST和YT中C1、C2和C3的相对浓度均具有显著差异。湿地表层底泥真菌群落优势门(除未分类类群)为子囊菌门(Ascomycota)、担子菌门(Basidiomycota)、罗兹菌门(Rozellomycota)。YT中真菌群落Chao1丰富度指数、Shannon多样性指数显著较低,而Simpson优势度指数显著较高,HP中Shannon多样性指数显著高于其余样品。C1、C2与真菌群落多样性显著相关,C2与真菌群落组成显著相关,而类蛋白质与真菌群落无显著相关性。C1、C2与子囊菌门均成显著正相关,C1与壶菌门(Chytridiomycota)和单毛壶菌门(Monoblepharomycota)成显著负相关,C2与担子菌门、罗兹菌门、壶菌门、单毛壶菌门均成显著负相关。因此,真菌群落对DOM相对大分子量荧光组分的相对浓度具有显著影响。针对北方寒区典型湿地表层底泥DOM荧光光谱特征及与真菌群落相关性进行分析,为湿地环境监测与评价提供基础数据,并为湿地合理利用提供理论参考。

关键词：三维荧光光谱溶解性有机质荧光组分真菌