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Whole-lifetime Coordinated Service Strategy for Battery Energy Storage System Considering Multi-stage Battery Aging Characteristics

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Journal of Modern Power Systems and Clean Energy 2022年第3期10卷 689-699页

作者： feilong Fan yan Xu Rui Zhang Tong Wan IEEE Energy Research Institute@NTU Nanyang Technological UniversitySingapore College of Smart Energy Shanghai Jiao Tong UniversityShanghaiChina School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore The University of New South Wales SydneyAustralia University of Sydney SydneyAustralia

One battery energy storage system(BESS)can be used to provide different services,such as energy arbitrage(EA)and frequency regulation(FR)support,etc.,which have different revenues and lead to different battery degradation profiles.This paper proposes a whole-lifetime coordinated service strategy to maximize the total operation profit of BESS.A multi-stage battery aging model is developed to characterize the battery aging rates during the whole lifetime.Considering the uncertainty of electricity price in EA service and frequency deviation in FR service,the whole problem is formulated as a twostage stochastic programming problem.At the first stage,the optimal service switching scheme between the EA and FR services are formulated to maximize the expected value of the whole-lifetime operation profit.At the second stage,the output power of BESS in EA service is optimized according to the electricity price in the hourly timescale,whereas the output power of BESS in FR service is directly determined according to the frequency deviation in the second timescale.The above optimization problem is then converted as a deterministic mixed-integer nonlinear programming(MINLP)model with bilinear items.Mc Cormick envelopes and a bound tightening algorithm are used to solve it.Numerical simulation is carried out to validate the effectiveness and advantages of the proposed strategy.

关键词： Battery energy storage system(BESS) wholelifetime coordinated service multi-stage battery aging model two-stage stochastic programming mixed-integer nonlinear programming(MINLP)

Robustly Coordinated Operation of an Emission-free Microgrid with Hybrid Hydrogen-battery Energy Storage

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CSEE Journal of Power and Energy Systems 2022年第2期8卷 369-379页

作者： feilong Fan Rui Zhang yan Xu Shuyun Ren the Energy Research Institute@NTU Nanyang Technological UniversitySingapore and he is also with the College of Smart EnergyShanghai Jiao Tong UniversityShanghai 200240China the School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore School of Electrical Engineering and Telecommunications The University of New South WalesSydneyAustralia Guangdong University of Technology Guangzhou 510006China

High intermittence of renewable energy resources(RESs)and restriction for greenhouse gas(GHG)emissions have significantly challenged the operations of traditional diesel generator(DG)based microgirds.This paper considers an emission-free microgid with hybrid hydrogen-battery energy storage(HHBES)and proposes a coordinated operational strategy to minimize its daily operation costs.In addition to the electricity purchase costs in the day-ahead market and the operational costs of RESs,the total degradation cost of HHBES is also included in the cost calculation.The proposed operational strategy consists of two coordinated stages.At the day-ahead stage,the schedule for the tie-line power is exchanged with the main grid,the output power of the fuel cell(FC)and the input power of the electrolysis device(ED)are optimized under the worst case of uncertain power output from RESs and power demand from electricity loads(ELs).At the intra-day stage,the battery power is determined according to the short-term prediction for the power of RESs and ELs.The problem is formulated as a robust optimization model and solved by a two-level column-andconstraint-generation(C&CG)algorithm.Numerical simulations using Australian energy market operator(AEMO)data are carried out to validate the effectiveness of the proposed strategy.

关键词： Column-and-constraint-generation algorithm coordinated operation emission-free microgrid hybrid hydrogen-battery storage robust optimization

广西北部湾海域不同地区红树蚬营养成分分析与品质评价

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广东海洋大学学报 2024年第4期44卷 63-70页

作者：孙若鹏杨宾兰刘康卢玉典莫飞龙严雪瑜韦玲静广西北部湾海洋生物多样性养护重点实验室/北部湾大学海洋学院广西钦州535011 广西壮族自治区水产引育种中心广西南宁530031

【目的】研究广西北部湾不同地区红树蚬(Geloina coaxans)软体部营养成分差异,为红树蚬的养殖和育种提供数据支撑。【方法】对广西北部湾北海、钦州、防城港3个地区的红树蚬软体部,采用生化分析手段测定其常规营养成分、氨基酸和脂肪酸... 详细信息

【目的】研究广西北部湾不同地区红树蚬(Geloina coaxans)软体部营养成分差异,为红树蚬的养殖和育种提供数据支撑。【方法】对广西北部湾北海、钦州、防城港3个地区的红树蚬软体部,采用生化分析手段测定其常规营养成分、氨基酸和脂肪酸含量,并进行品质评价。【结果】在常规营养成分方面,防城港红树蚬软体部水分质量分数最高,北海红树蚬软体部的总糖和灰分质量分数最高(P<0.05),并且北海红树蚬粗脂肪的质量分数低于钦州红树蚬(P<0.05)。在氨基酸方面,3个地区红树蚬软体部分检测出15种氨基酸,必需氨基酸总质量/氨基酸总质量(m_(EAA)/m_(TAA))和必需氨基酸总质量/非必需氨基酸总质量(m_(EAA)/m_(NEAA))分别在27.55%~28.22%和46.28%~48.23%之间,其比值偏低,但较均衡;呈味氨基酸总质量/氨基酸总质量(m_(FAA)/m_(TAA))为45.85%~46.35%,且必需氨基酸指数(EAAI)介于53.19~86.13之间,防城港红树蚬软体部的m_(TAA)、m_(EAA)、m_(FAA)均为最高(P<0.05),并且其EAAI评分最高。在脂肪酸方面,共检测出26种脂肪酸,其中包括9种饱和脂肪酸(SFA)、7种单不饱和脂肪酸(MUFA)和10种多不饱和脂肪酸(PUFA),防城港和钦州红树蚬软体部中二十碳五烯酸(EPA)和二十二碳六烯酸(DHA)含量较高。【结论】广西北海、防城港、钦州的红树蚬均为蛋白质含量高、脂肪含量低、营养均衡的优质贝类。其氨基酸种类多,组成比例合理,必需氨基酸、呈味氨基酸含量丰富,可作为天然调味品资源予以研究。其富含单不饱和脂肪酸、多不饱和脂肪酸等脂肪酸,可作为富含脂肪酸的营养食品原料。3个地区中,防城港红树蚬的蛋白质营养价值更高,氨基酸均衡性更好,可以更好满足人体对必需氨基酸的需求。

关键词：红树蚬营养成分氨基酸脂肪酸

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装备试验鉴定计量保障方案研究

计量与测试技术 2024年第1期51卷 61-64页

作者：刘岩胡晓粉张春洋边飞龙军事科学院防化研究院

本文在分析装备试验鉴定计量保障方案的研究目的、基本内涵和建设思路的基础上,提出该方案的总体规划和实施步骤,从而满足试验任务全过程的计量监督管理和试验设备设施量值的溯源要求,确保试验鉴定过程计量单位统一和量值准确可靠,有效... 详细信息

本文在分析装备试验鉴定计量保障方案的研究目的、基本内涵和建设思路的基础上,提出该方案的总体规划和实施步骤,从而满足试验任务全过程的计量监督管理和试验设备设施量值的溯源要求,确保试验鉴定过程计量单位统一和量值准确可靠,有效发挥军事计量建设对提高装备试验鉴定质量和可靠性的重要作用。

关键词：装备试验鉴定计量保障

Surface defect and lattice engineering of Bi_(5)O_(7)Br ultrathin nanosheets for efficient photocatalysis

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Nano Research 2023年第1期16卷 248-255页

作者： Yunjing Wang Hongchen He Yunjiang Wang Meili Xie Feng Jing Xianhong Yin feilong Hu yan Mi Key Laboratory of Chemistry and Engineering of Forest Products State Ethnic Affairs CommissionGuangxi Key Laboratory of Chemistry and Engineering of Forest ProductsGuangxi Collaborative Innovation Center for Chemistry and Engineering of Forest ProductsGuangxi Minzu UniversityNanning 530006China

The effective separation and migration of photogenerated charge carriers in bulk and on the surface of photocatalysts will significantly promote photocatalytic efficiency.However,the synchronous regulation of photocharges on both counts is challenging.Herein,the simultaneous separation of bulk and surface photocharges is conducted to enhance photocatalytic activity by coupling the surface defects and lattice engineering of bismuth oxybromide.The depth-modulated Bi_(5)O_(7)Br ultrathin nanosheets with an abundance of bismuth in the crystal structure increased the internal electric field,which propelled the separation and migration of photocharges from bulk to the surface.Creation of oxygen vacancies(OVs)on the nanosheet surface forms local electric fields,which can stimulate the migration of charges to active sites on the catalyst surface.Therefore,the OV-assembled Bi_(5)O_(7)Br nanosheets demonstrated enhanced photocatalytic degradation efficiency under simulated solar-light illumination.This study proved the possibility of charge governing via electric field modulation based on an integrated strategy.

关键词： lattice engineering internal electric field oxygen vacancies photocharge separation bismuth oxybromide

毛蕊花糖苷对脑出血小鼠的脑保护作用及其与Toll样受体4介导信号通路的关系

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中华神经外科杂志 2024年第6期40卷 626-633页

作者：熊雨赖雪李想明扬刘洛同何海平酉建龚飞龙陈礼刚颜敏西南医科大学附属医院神经外科四川省神经外科临床研究中心神经系统疾病与脑功能实验室泸州646000 西南医科大学附属医院日间手术室泸州646000 西南医科大学泸州646000

目的探讨毛蕊花糖苷(VB)对脑出血(ICH)小鼠的脑保护作用及其是否与抑制Toll样受体4(TLR4)介导的急性炎性反应有关.方法采用8周龄C57BL/6雄性小鼠进行研究,其中野生型40只,TLR4基因敲除(TLR4^(-/-))20只.按照完全随机方法将野生型小鼠分... 详细信息

目的探讨毛蕊花糖苷(VB)对脑出血(ICH)小鼠的脑保护作用及其是否与抑制Toll样受体4(TLR4)介导的急性炎性反应有关.方法采用8周龄C57BL/6雄性小鼠进行研究,其中野生型40只,TLR4基因敲除(TLR4^(-/-))20只.按照完全随机方法将野生型小鼠分为假手术组、ICH组,ICH后VB治疗组(ICH+VB15mg/kg或30mg/kg),将TLR4^(-/-)组小鼠分为TLR4^(-/-)+ICH组和TLR4^(-/-)+ICH+VB(30 mg/kg)组,每组小鼠均为10只.采用右侧纹状体注射细菌胶原酶Ⅶ的方法构建ICH模型.模型建立成功(改良Garcia评分≤10分)后分别于小鼠腹腔注射VB(15 mg/kg或30 mg/kg)或等体积生理盐水,1次/d,连续3 d.采用改良Garcia评分评价脑功能损伤情况;取脑组织切片后计算脑血肿面积以评估出血量,采用干湿比法计算脑组织含水量;采用TUNEL染色法检测脑组织细胞凋亡率;采用免疫荧光染色(IF)法检测脑组织Iba-1的相对表达量;采用实时荧光定量聚合酶链反应(qRT-PCR)实验和蛋白质免疫印迹法(WB)检测TLR4及其下游炎症介质[核因子κB(NF-κB)、肿瘤坏死因子a(TNF-α)、白细胞介素(IL)1β及IL-6]的表达.比较野生型小鼠组间及TLR4^(-/-)小鼠组间上述指标的差异.取出生2 h内的TLR4^(-/-)乳鼠皮质组织培养原代神经元,采用Transwell小室将神经元与小鼠小胶质细胞株(BV2细胞)共培养,并分别用红细胞裂解物及红细胞裂解物+VB(50μmol/L)处理24 h,采用IF法观察神经元NeuN蛋白的表达.结果与ICH组相比,VB治疗组(尤其是ICH+VB30 mg/kg组)小鼠的致良Garcia评分均显著升高(均P0.05).与BV2细胞共培养的TLR4^(-/-)乳鼠神经元加入红细胞裂解物与加入红细胞裂解物+VB处理后NeuN蛋白的表达差异无统计学意义(P=0.872).结论VB可改善ICH后小鼠的神经功能缺损,减少ICH量、减轻脑水肿程度及抑制细胞凋亡,其机制可能与通过抑制TLR4信号通路,减少小胶质细胞的激活以及促炎细胞因子的释放有关.

关键词：脑出血毛蕊花糖苷 Toll样受体4 炎症小鼠

泛素羧基末端水解酶37对胰腺癌SW1990细胞增殖的影响

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中华实用诊断与治疗杂志 2024年第5期38卷 433-437页

作者：闫帅岳学良杨森谭飞龙刘红山郑州大学人民医院河南省人民医院肝胆胰腺外科河南郑州450003

目的观察胰腺癌SW1990细胞中泛素羧基末端水解酶37(UCH37)对细胞分裂周期蛋白25A(CDC25A)的调控作用,探讨其对SW1990细胞增殖的影响。方法取对数生长期正常人胰腺HPDE细胞及胰腺癌SW1990细胞,分别采用实时荧光定量PCR法、Western blo... 详细信息

目的观察胰腺癌SW1990细胞中泛素羧基末端水解酶37(UCH37)对细胞分裂周期蛋白25A(CDC25A)的调控作用,探讨其对SW1990细胞增殖的影响。方法取对数生长期正常人胰腺HPDE细胞及胰腺癌SW1990细胞,分别采用实时荧光定量PCR法、Western blot法检测UCH37 mRNA及蛋白相对表达量。取对数生长期SW1990细胞分为UCH37敲低组(转染sh-UCH37慢病毒)、UCH37空白组(转染UCH37-NC慢病毒)。转染48 h,分别采用实时荧光定量PCR法、Western blot法检测2组UCH37、CDC25A mRNA及蛋白相对表达量,采用细胞克隆形成实验检测2组细胞集落形成数;转染后培养24、48、72、96 h采用CCK-8法检测2组细胞增殖吸光度(optical density, OD)值。结果 (1)SW1990细胞UCH37 mRNA(3.338±0.137)及蛋白(0.956±0.043)相对表达量均高于HPDE细胞(0.968±0.040、0.056±0.003)(t=26.710,P0.05)。(3)转染48 h, UCH37敲低组CDC25A蛋白相对表达量(0.501±0.026)低于UCH37空白组(1.174±0.038)(t=23.090,P0.05)。结论去泛素化酶UCH37可通过CDC25A调控胰腺癌细胞周期增殖,敲低UCH37表达可抑制胰腺癌细胞的增殖。

关键词：胰腺癌泛素羧基末端水解酶37 细胞分裂周期蛋白25A

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以肝星状细胞为靶标的抗肝纤维化治疗进展

系统医学 2024年第2期9卷 189-193页

作者：陈飞龙赵岩杨玉霞陈翔卢娟娟甘肃省人民医院消化科甘肃兰州730000

肝纤维化是指慢性肝脏疾病发展过程中,肝细胞被反复破坏再生,导致细胞外基质在肝脏中过度沉积的结局。肝星状细胞(Hepatic Stellate Cell, HSC)是损伤肝脏的纤维化形成过程中主要的细胞类型,且有部分细胞因子参与。目前,临床中防治肝纤... 详细信息

肝纤维化是指慢性肝脏疾病发展过程中,肝细胞被反复破坏再生,导致细胞外基质在肝脏中过度沉积的结局。肝星状细胞(Hepatic Stellate Cell, HSC)是损伤肝脏的纤维化形成过程中主要的细胞类型,且有部分细胞因子参与。目前,临床中防治肝纤维化的重要途径就是抑制HSC的增殖、激活,促进HSC凋亡。本文就以HSC作为靶标的抗肝纤维化治疗方案展开综述。

关键词：肝星状细胞靶标肝纤维化治疗进展

Sustained release of magnesium and zinc ions synergistically accelerates wound healing

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Bioactive Materials 2023年第8期26卷 88-101页

作者： Fan yang Yijia Xue feilong Wang Danni Guo Yunjiao He Xiao Zhao Fanyu yan Yuqian Xu Dandan Xia Yunsong Liu Department of Prosthodontics Peking University Hospital of StomatologyBeijing100081China National Center for Stomatology National Clinical Research Center for Oral DiseasesNational Engineering Research Center of Oral Biomaterials and Digital Medical DevicesBeijing Key Laboratory of Digital StomatologyResearch Center of Engineering and Technology for Computerized Dentistry Ministry of HealthNMPA Key Laboratory for Dental MaterialsBeijing100081China Department of Dental Materials Peking University Hospital of StomatologyBeijing100081China

Skin wounds are a major medical challenge that threaten human health.Functional hydrogel dressings demonstrate great potential to promote wound healing.In this study,magnesium(Mg)and zinc(Zn)are introduced into methacrylate gelatin(GelMA)hydrogel via low-temperature magnetic stirring and photocuring,and their effects on skin wounds and the underlying mechanisms are investigated.Degradation testing confirmed that the GelMA/Mg/Zn hydrogel released magnesium ions(Mg^(2+))and zinc ions(Zn^(2+))in a sustained manner.The Mg^(2+) and Zn^(2+)not only enhanced the migration of human skin fibroblasts(HSFs)and human immortalized keratinocytes(HaCats),but also promoted the transformation of HSFs into myofibroblasts and accelerated the production and remodeling of extracellular matrix.Moreover,the GelMA/Mg/Zn hydrogel enhanced the healing of full-thickness skin defects in rats via accelerated collagen deposition,angiogenesis and skin wound re-epithelialization.We also identified the mechanisms through which GelMA/Mg/Zn hydrogel promoted wound healing:the Mg^(2+) promoted Zn^(2+)entry into HSFs and increased the concentration of Zn^(2+)in HSFs,which effectively induced HSFs to differentiate into myofibroblasts by activating the STAT3 signaling pathway.The synergistic effect of Mg^(2+) and Zn^(2+)promoted wound healing.In conclusion,our study provides a promising strategy for skin wounds regeneration.

关键词： Biodegradable magnesium Biodegradable zinc GelMA hydrogel Skin wound healing STAT3 signaling pathway