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Journal of Ocean University of China 2013年第1期12卷 146-154页

作者： du rongbin ZANG Yuanqi TIAN Xiangli DONG Shuanglin School of Oceanography Yantai University The Key Laboratory of Mariculture Ministry of Education of China Ocean University of China Provincial Marine Fisheries Research Institute of Shandong

The growth, metabolism and physiological response of the sea cucumber, Apostichopus japonicus, were investigated during periods of inactivity. The body weight, oxygen consumption rate (OCR), activities of acidic phosphatase (ACP), alkaline phosphatase (AKP), catalase (CAT) and superoxide dismutase (SOD), and content of heat shock protein 70 (Hsp70) in the body wall and coelomic fluid of A. japonicus were measured during starvation, experimental aestivation and aestivation. The results showed that the body weight of sea cucumber in the three treatments decreased significantly during the experimental period (P duced in starvation and experimental aestivation treatments, but increased gradually in natural aestivation treatment. The activities of ACP and AKP of sea cucumber decreased gradually in all treatments, whereas those of SOD and CAT as well as Hsp70 content decreased in the starvation and experimental aestivation treatments and increased in natural aestivation treatment. The sea cucumber entered a state of aestivation at 24℃. To some extent, the animals in experimental aestivation were different from those in natural aestivation in metabolism and physiological response. These findings suggested that the aestivation mechanism of A. japonicus is complex and may not be attributed to the elevated temperature only.

关键词： Apostichopus japonicus Selenka starvation aestivation growth oxygen consumption rate physiological response heat shock protein

Histological Observation of Germ Cell Development and Discovery of Spermatophores in Ovoviviparous Black Rockfish(Sebastes schlegeli Hilgendorf) in Reproductive Season

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Journal of Ocean University of China 2014年第5期13卷 830-836页

作者： FENG Junrong LIU Liming JIANG Haibin WANG Maojian du rongbin Ocean College Yantai University Shandong Marine Fisheries Research Institute

Black rockfish(Sebastes schlegeli) is an important species for culture; however, its reproductive characteristics have not been fully documented. In this study, we investigated the morphology and developmental process of germ cells in this ovoviviparous rockfish in reproductive season(October 2011–November 2012) with histological methods. We found that the gonad of mature fish showed notable seasonal changes in developmental characteristics and morphological structure. The sperm cells matured during a period lasting from October to December, significantly earlier than the oocytes did. A large number of spermatozoa and other cells occurred in testis at different developmental stages. Vitellogenesis in oocytes began in October, and gestation appeared in April next year. Spermatophores were discovered for the first time in Sebastes, which assembled in testis, main sperm duct, oviduct and genital tract, as well as ovarian cavity in October and April. These organs may serve either as production or hiding places for spermatophores and spermatozoa which were stored and transported in form of spermatophores. Testicular degeneration started from the distal part of testis in April, with spermatophores assembled in degenerating testis and waiting for transportation. The copulation probably lasted for a long period, during which the spermatozoa were discharged in batches as spermatophores. These spermatophores were coated with sticky materials secreted from the interstitial areas of testis and the main sperm duct, then transported into ovary.

关键词： Sebastes schlegeli germ cell development spermatophore copulation period

绿鳍马面鲀野生与养殖群体的微卫星遗传多样性分析

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水产科学 2024年第2期43卷 312-318页

作者：王九龙叶苗李洪莉徐文刚刘立明杜荣斌尹硕烟台大学海洋学院山东烟台264005

为制定科学合理的绿鳍马面鲀苗种生产计划,并及时监测和掌握其人工繁育群体在养殖过程中的遗传多样性水平及变化,笔者利用公布的绿鳍马面鲀全基因组序列筛选微卫星序列并设计引物,在随机挑选的50个候选微卫星位点中有20个可以高效、稳... 详细信息

为制定科学合理的绿鳍马面鲀苗种生产计划,并及时监测和掌握其人工繁育群体在养殖过程中的遗传多样性水平及变化,笔者利用公布的绿鳍马面鲀全基因组序列筛选微卫星序列并设计引物,在随机挑选的50个候选微卫星位点中有20个可以高效、稳定地扩增出目的产物。利用绿鳍马面鲀野生群体对开发的20个微卫星标记进行评价,每个位点的等位基因数为4~13个,有效等位基因数为3.758~12.000,观测杂合度为0.267~0.833,期望杂合度为0.413~0.932,多态信息含量为0.361~0.910,香农-维纳多样性指数为0.806~2.520。绿鳍马面鲀野生和养殖群体的遗传多样性比较分析表明,野生和养殖群体的等位基因数平均值分别为8.2和7.3,有效等位基因数平均值分别为7.168和6.239,观测杂合度平均值分别为0.663和0.561,期望杂合度平均值分别为0.819和0.719,多态信息含量平均值分别为0.780和0.684,香农-维纳多样性指数平均值分别为1.914和1.647。试验结果显示,绿鳍马面鲀养殖群体的遗传多样性低于野生群体,但仍然维持在较高的多态性水平,表明绿鳍马面鲀的人工繁育会对其遗传多样性产生一定影响。笔者开发的微卫星标记可用于绿鳍马面鲀群体遗传学、分子标记辅助育种等研究,试验结果可为绿鳍马面鲀资源保护和良种选育提供一定理论依据。

关键词：绿鳍马面鲀遗传多样性杂合度微卫星

Succession and seasonal variation in epilithic biofilms on artificial reefs in culture waters of the sea cucumber Apostichopus japonicus

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Chinese Journal of Oceanology and Limnology 2017年第1期35卷 132-152页

作者： LIU Liming du rongbin ZHANG Xiaoling DONG Shuanglin SUN Shichun Key Laboratory of Mariculture Ministry of Education Ocean University of China Qingdao 266003 China Ocean School Yantai University Yantai 264005 China

Periphytic biofilms in aquaculture waters are thought to improve water quality, provide an additional food source, and improve the survival and growth of some reared animals. In the AsiaPacific region, particularly in China, artificial reefs are commonly used in the commercial farming of sea cucumbers. However, few studies have examined the epilithic biofilms on the artificial reefs. To gain a better understanding of the succession of epilithic biofilms and their ecological processes in sea cucumber culture waters, two experiments were conducted in culture waters of the sea cucumber Apostichopus japonicus in Rongcheng, China, using artificial test panels. On the test panels of succession experiment, more than 67 species were identified in the biofilms. On the test panels of seasonal variation experiment, more than 46 species were recorded in the biofilms. In both experiments, communities of epilithic biofilms were dominated by diatoms, green algae and the annelid Spirorbis sp. In the initial colonization, the dominant diatoms were Cocconeis sp., Amphora spp. and Nitzschia closterium in June, which were succeeded by species of Navicula, Cocconeis and Nitzschia(July to September), and then by Licmophora abbreviata, Nitzschia closterium and Synedra spp. in the following months. A diatom bloom in the autumn and filamentous green algae burst in the summer were also observed. Ecological indices well annotated the succession and seasonal changes in epilithic communities. Multidimensional scaling(MDS) analysis found significant differences in diatom community composition among months and seasons. Fast growth of biofilms was observed in the summer and autumn, whereas the biomass of summer biofilms was largely made up of filamentous green algae. Present results show that the components of epilithic biofilms are mostly optimal foods of A. japonicus, suggesting that biofilms on artificial reefs may contribute important nutritional sources for sea cucumbers during their growth s

关键词： artificial reef sea cucumber culture waters epilithic biofilm succession seasonal variation Apostichopus japonicus diatom

A Hybrid Improved Genetic Algorithm and Its Application in Dynamic Optimization Problems of Chemical Processes

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Chinese Journal of Chemical Engineering 2013年第2期21卷 144-154页

作者： SUN Fan du Wenli QI rongbin QIAN Feng ZHONG Weimin Key Laboratory of Advanced Control and Optimization for Chemical Processes Ministry of Education East China University of Science and Technology Shanghai 200237 China

The solutions of dynamic optimization problems are usually very difficult due to their highly nonlinear and multidimensional nature. 13enetic algorithm （GA） has been proved to be a teasibte method when the gradient is difficult to calculate. Its advantage is that the control profiles at all time stages are optimized simultaneously, but its convergence is very slow in the later period of evolution and it is easily trapped in the local optimum. In this study, a hybrid improved genetic algorithm （HIGA） for solving dynamic optimization problems is proposed to overcome these defects. Simplex method （SM） is used to perform the local search in the neighborhood of the optimal solution. By using SM, the ideal searching direction of global optimal solution could be found as soon as possible and the convergence speed of the algorithm is improved. The hybrid algorithm presents some improvements, such as protecting the best individual, accepting immigrations, as well as employing adaptive crossover and Ganssian mutation operators. The efficiency of the proposed algorithm is demonstrated by solving several dynamic optimization problems. At last, HIGA is applied to the optimal production of secreted protein in a fed batch reactor and the optimal feed-rate found by HIGA is effective and relatively stable.

关键词： genetic algorithm simplex method dynamic optimization chemical process

掺杂Pr^(3+)的尖晶石LiPr_xMn_(2-x)O_4的合成及电化学性能

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稀有金属材料与工程 2010年第5期39卷 932-935页

作者：杜荣斌刘涛姜效军安庆师范学院安徽安庆246003 辽宁科技大学辽宁鞍山114044

采用溶胶凝胶法合成掺杂稀土镨离子的锂锰尖晶石LiPrxMn2-xO4,并对其结构和电化学性能进行初步研究。结果表明,当掺入的Pr3+含量较低(x≤0.02)时,得到的产物能保持完整的尖晶石结构,并表现出极佳的电化学性能。Pr3+的掺入使材料的循环... 详细信息

采用溶胶凝胶法合成掺杂稀土镨离子的锂锰尖晶石LiPrxMn2-xO4,并对其结构和电化学性能进行初步研究。结果表明,当掺入的Pr3+含量较低(x≤0.02)时,得到的产物能保持完整的尖晶石结构,并表现出极佳的电化学性能。Pr3+的掺入使材料的循环稳定性能大幅度提高,而这种提高是源于Pr3+对尖晶石结构的稳定作用。电极材料LiPr0.02Mn1.98O4显示了最优的电化学性能,在0.2C放电速率下,其初始放电容量为118mAh·g-1,100次循环后仍能保持初始容量的98%。

关键词：尖晶石LiMn2O4 掺杂镨锂离子电池

尖晶石材料LiMn_2O_4的研究现状及展望

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化工新型材料 2006年第2期34卷 1-4页

作者：杜荣斌桂林工学院有色金属材料及其加工新技术省部共建教育部重点实验室桂林541004

综述了近年来有关锂离子电池正极材料LiMn2O4的合成与性能研究进展,重点讨论了LiMn2O4材料掺杂以及改性的最新研究现状,分析了该类材料的研究内容以及发展方向。

关键词：锂离子电池正极材料 LiMn2O4 掺杂

Repair of Second-Generation Recycled Fine Aggregate of Waste Concrete from Freeze-Thaw Environment by Carbonation Treatment

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Journal of Renewable Materials 2024年第1期12卷 187-201页

作者： Jie Huang rongbin Jiang Xiaobo Sun Yingyong Shuai School of Building Engineering Taizhou Polytechnic CollegeTaizhou225300China

The reuse of waste recycled concrete from harsh environments has become a research hotspot in the field of *** study investigated the repair effect of carbonation treatment on second-generation recycled fine aggregate(SRFA)obtained from recycled fine aggregate concrete(RFAC)subjected to freeze-thaw(FT)*** and after carbonation,the properties of SRFA were *** second-generation recycled fine aggregate(CSRFA)at five substitution rates(0%,25%,50%,75%,100%)to replace SRFA was used to prepare carbonated second-generation recycled fine aggregate concrete(CSRFAC).The water absorption,porosity and mechanical properties of CSRFAC were tested,and its frost-resisting durability was *** results showed after carbonation treatment,the physical properties of SRFA was improved and met the requirements of II *** micro-hardness of the interfacial transition zone and attached mortar in CSRFA was 50.5%and 31.2%higher than that in SRFA,*** the increase of CSRFA replacement rate,the water absorption and porosity of CSRFAC gradually decreased,and the mechanical properties and frost resistance of CSRFAC were gradually *** treatment effectively repairs the damage of SRFA caused by FT cycles and improves its application potential.

关键词： Carbonation treatment repair freeze-thaw cycles second-generation recycled fine aggregate

Effective integration of highly-efficient focusing apodized grating and quantum dots on a solid substrate for scalable quantum photonic circuits

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Science China(Physics,Mechanics & Astronomy) 2024年第9期67卷 99-107页

作者： Beimeng Yao rongbin Su Shunfa Liu Changkun Song Ying Yu Jin Liu Xuehua Wang State Key Laboratory of Optoelectronic Materials and Technologies School of PhysicsSun Yat-sen UniversityGuangzhou 510275China State Key Laboratory of Optoelectronic Materials and Technologies School of Electronics and Information TechnologySun Yat-sen UniversityGuangzhou 510275China

Recent advancements in quantum photonic circuits have significantly influenced the field of quantum information *** pursuit of an integrated quantum photonic circuit that offers an active,stable platform for large-scale integration and high processing efficiency remains a key *** grating coupler,as a crucial element for an efficient transformation output interface in the integrated quantum photonic circuits,presents significant potential for practical ***,we demonstrate the integration block of a highly efficient shallow-etched focusing apodized grating coupler with indium arsenide(InAs)quantum dots(QDs)in gallium arsenide(GaAs)on a SiO2substrate for active quantum photonic *** designed grating couplers possess a high efficiency over 90% in the broadband(900-930 nm)from the circuit to free space,and a nearly-perfect match with the fiber ***,the efficiency to free space reaches 81.8%,and the match degree with the fiber mode is high up to 92.1%.The proposed integration block offers the potential for large-scale integration of active quantum photonic circuits due to its stable solid substrate and highly performant output for quantum measurements.

关键词： quantum dot grating coupler wafer bonding quantum photonic circuit

New mechanistic insights into phosphate-starvation-regulated plant architecture change and nutrient uptake

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Molecular Plant 2024年第1期17卷 19-21页

作者： Hong Lu rongbin Lin Meiju Deng Kangming Jin Chuanzao Mao State Key Laboratory of Plant Environmental Resilience College of Life SciencesZhejiang UniversityHangzhou 310058China Hainan Institute of Zhejiang University Yazhou Bay Science and Technology CityYazhou DistrictSanyaHainan 572025China

Phosphorus(P)is an indispensable macro-nutrient for plant growth that is absorbed by plants in the form of inorganic phosphate(Pi).Pi deficiency is a major challenge limiting crop productivity *** combat Pi scarcity and maintain Pi homeostasis,plants have evolved different strategies for efficient Pi acquisition(Paz-Ares et al.,2022).Plants reduce overall growth and enhance the root system to optimize nutrients foraging in Pi-limited ***(SLs).

关键词： plant maintain inorganic