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计及环境效益的西部地区新能源项目经济绩效研究

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西北水电 2024年第1期 93-98页

作者：谢益敏董菲菲罗梦妍李诚中国电建集团西北勘测设计研究院有限公司西安710065

随着双碳目标的提出以及“1+N”政策体系的出台,中国新能源发展迅速,风电光伏项目的经济性被大众重点关注。基于项目平准化度电成本和内部收益率理论,以5个西部地区省份为例,分析了技术进步、市场规模扩大、参与环境交易等对项目经济绩... 详细信息

随着双碳目标的提出以及“1+N”政策体系的出台,中国新能源发展迅速,风电光伏项目的经济性被大众重点关注。基于项目平准化度电成本和内部收益率理论,以5个西部地区省份为例,分析了技术进步、市场规模扩大、参与环境交易等对项目经济绩效的影响情况,研究了不同情况下项目配置储能的成本空间。结果表明:提高风电光伏项目发电量和降低单位建造成本均能有效提升项目经济性;含税度电成本中各项税费占比较大,税收优惠政策能够降低成本,提高项目收益;碳排放配额和绿色电力证书交易能够为风电光伏项目开发建设提供经济激励,CCER交易能够增加度电收益0.066元/kWh;绿证交易能够增加度电收益0.05元/kWh;各地风电光伏项目配置储能将大幅降低项目收益率,参加环境交易能够降低配置储能对项目经济性的影响。

关键词：环境效益碳排放权绿色证书平准化度电成本内部收益率

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纤维质量公证检验制度在建设全国统一大市场中的作用思考

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中国纤检 2024年第7期 110-112页

作者：杨博王琛魏巍刘宋文董飞飞安徽省纤维检验局安徽合肥230051

棉花等纤维公证检验制度在提高棉花流通效率、降低纤维流通成本、提高纤维质量等方面发挥了重要作用。公证检验制度支持和促进棉花等纤维商品要素资源在更大范围内畅通流动,这与建设全国统一大市场的特征要求高度契合。基于更好地服务... 详细信息

棉花等纤维公证检验制度在提高棉花流通效率、降低纤维流通成本、提高纤维质量等方面发挥了重要作用。公证检验制度支持和促进棉花等纤维商品要素资源在更大范围内畅通流动,这与建设全国统一大市场的特征要求高度契合。基于更好地服务建设统一大市场,建议在完善公证检验法治保障和配套制度、推动公检仪器设备科技创新,深化公证检验数据运用等方面持续发力。

关键词：纤维棉花公证检验制度全国统一大市场作用

A refined risk explicit interval linear programming approach for optimal watershed load reduction with objective-constraint uncertainty tradeoff analysis

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Frontiers of Environmental Science & Engineering 2016年第1期10卷 129-140页

作者： Pingjian YANG feifei dong Yong LIU Rui ZOU Xing CHEN Huaicheng GUO College of Environmental Science and Engineering Peking University the Key Laboratory of Water and Sediment Sciences Ministry of Education Beijing 100871 China School of Natural Resources and Environment University of Michigan Ann Arbor MI 48109 USA Yurman International Center for Pleantu Lakes Kunming 650034 China Tetra Tech Inc. Fairfax VA 22030 USA

To enhance the effectiveness of watershed load reduction decision making, the Risk Explicit Interval Linear Programming （REILP） approach was developed in previous studies to address decision risks and system returns. However, REILP lacks the capability to analyze the tradeoff between risks in the objective function and constraints. Therefore, a refined REILP model is proposed in this study to further enhance the decision support capability of the REILP approach for optimal watershed load reduction. By introducing a tradeofffactor （α） into the total risk function, the refined REILP can lead to different compromises between risks associated with the objective functions and the constraints. The proposed model was illustrated using a case study that deals with uncertainty- based optimal load reduction decision making for Lake Qionghai Watershed, China. A risk tradeoff curve with different values of a was presented to decision makers as a more flexible platform to support decision formulation. The results of the standard and refined REILP model were compared under 11 aspiration levels. The results demon- strate that, by applying the refined REILP, it is possible to obtain solutions that preserve the same constraint risk as that in the standard REILP but with lower objective risk, which can provide more effective guidance for decision makers.

关键词： refined risk explicit interval linear program-ming decision making objective-constraint uncertaintytradeoff aspiration level Lake Qionghai Watershed

Hierarchically Structured Nb_(2)O_5 Microflowers with Enhanced Capacity and Fast-Charging Capability for Flexible Planar Sodium Ion Micro-Supercapacitors

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Nano-Micro Letters 2024年第4期16卷 97-109页

作者： Jiaxin Ma Jieqiong Qin Shuanghao Zheng Yinghua Fu Liping Chi Yaguang Li Cong dong Bin Li feifei Xing Haodong Shi Zhong‑Shuai Wu State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of Sciences457 Zhongshan RoadDalian 116023People’s Republic of China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001People’s Republic of China College of Science Henan Agricultural UniversityNo.63 Agricultural RoadZhengzhou 450002People’s Republic of China Dalian National Laboratory for Clean Energy Chinese Academy of Sciences457 Zhongshan RoadDalian 116023People’s Republic of China University of Chinese Academy of Sciences 19A Yuquan RoadShijingshan DistrictBeijing 100049People’s Republic of China Hebei Key Lab of Optic‑Electronic Information and Materials The College of Physics Science and TechnologyInstitute of Life Science and Green DevelopmentHebei UniversityBaoding 071002People’s Republic of China

Planar Na ion micro-supercapacitors(NIMSCs) that offer both high energy density and power density are deemed to a promising class of miniaturized power sources for wearable and portable microelectron-ics. Nevertheless, the development of NIMSCs are hugely impeded by the low capacity and sluggish Na ion kinetics in the negative ***, we demonstrate a novel carbon-coated Nb_(2)O_5 microflower with a hierarchical structure composed of vertically intercrossed and porous nanosheets, boosting Na ion storage performance. The unique structural merits, including uniform carbon coating, ultrathin nanosheets and abun-dant pores, endow the Nb_(2)O_5 microflower with highly reversible Na ion storage capacity of 245 mAh g^(-1) at 0.25 C and excellent rate *** from high capacity and fast charging of Nb_(2)O_5 microflower, the planar NIMSCs consisted of Nb_(2)O_5 negative electrode and activated car-bon positive electrode deliver high areal energy density of 60.7 μWh cm^(-2),considerable voltage window of 3.5 V and extraordinary cyclability. Therefore, this work exploits a structural design strategy towards electrode materials for application in NIMSCs, holding great promise for flexible microelectronics.

关键词： Nb_(2)O_5 nanosheets Microflowers Sodium ion micro-supercapacitors Flexibility Energy storage

Achieving exceptional activity and durability toward oxygen reduction based on a cobalt-free perovskite for solid oxide fuel cells

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Journal of Energy Chemistry 2021年第11期30卷 653-659,I0016页

作者： feifei dong Zhenghui Gao Bingkai Zhang Lu Li Ziqi Kong Zilin Ma Meng Ni Zhan Lin Guangzhou Key Laboratory of Clean Transportation Energy Chemistry School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou Higher Education Mega CenterGuangzhou 510006GuangdongChina Building Energy Research Group Department of Building and Real EstateThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077China

In response to the shortcomings of cobalt-rich cathodes, iron-based perovskite oxides appear as promising alternatives for solid oxide fuel cells (SOFCs). However, their inferior electrochemical performance at reduced temperatures (<700 ℃) becomes a major bottleneck for future progress. Here, a novel cobalt-free perovskite Ba_(0.75)Sr_(0.25)Fe_(0.875)Ga_(0.125)O_(3−δ) (BSFG) is developed as an efficient oxygen reduction electrode for SOFCs, featuring cubic-symmetry structure, large oxygen vacancy concentration and fast oxygen transport. Benefiting from these merits, cells incorporated with BSFG achieve exceptionally high electrochemical performance, as evidenced by a low polarization area-specific resistance of 0.074 Ω cm^(2) and a high peak power density of 1145 mW cm^(−2) at 600 ℃. Meanwhile, a robust short-term performance stability of BSFG cathode can be ascribed to the stable crystalline structure and favorable thermal expansion behavior. First-principles computations are also conducted to understanding the superior activity and durability toward oxygen reduction reaction. These pave the way for rationally developing highly active and robust cobalt-free perovskite-type cathode materials for reduced-temperature SOFCs.

关键词： Solid oxide fuel cell Cathode Perovskite Oxygen reduction reaction Cobalt-free

Magnesium incorporation activates perovskite cobaltites toward efficient and stable electrocatalytic oxygen evolution

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Materials Reports(Energy) 2023年第3期3卷 55-61页

作者： Siyu Pan Zilin Ma Wenying Yang Biaokui dongyang Huizhi Yang Shimin Lai feifei dong Xixian Yang Zhan Lin Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou Higher Education Mega CenterGuangzhou510006PR China Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory Jieyang515200PR China Foshan Linnuo Environmental Protection Technology Corporation LtdFoshan528200PR China

Cobalt-rich perovskite oxides play a paramount role in catalyzing oxygen evolution reaction(OER)on account of their acceptable intrinsic activity but are still challenging due to the high costs and undesired *** response to the defects,herein,the Mg-incorporated perovskite cobaltite SrCo_(0.6)Fe_(0.3M)g_(0.1)O_(3-δ)(SCFM-0.1)is proposed as a novel earth-abundant and durable OER electrocatalyst.A well-consolidated cubic-symmetry structure and more active oxygen intermediates are enabled upon Mg ***,the optimized SCFM-0.1 perovskite oxide achieves prominent OER electrocatalytic performance,that is,a low overpotential of only 320 mV at 10 mA cm^(-2),a small Tafel slope of 65 mV dec^(-1),as well as an outstanding durability within 20 h,substantially outperforming that of the pristine SrCo_(0.7)Fe_(0.3)O_(3-δ)and benchmark Ba_(0.5)Sr_(0.5)Co_(0.8)Fe_(0.2)O_(3-δ)and IrO_(2) *** strong pHdependent behavior associated with lattice oxygen activation mechanism for SCFM-0.1 catalyst is also *** work paves a unique avenue to develop cost-effective and robust perovskite cobaltites for efficient OER electrocatalysis.

关键词： Perovskite Oxygen evolution reaction Electrocatalyst Mg incorporation Lattice oxygen activation

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赣南地区历史地震补充研究

地震学报 2020年第4期42卷 491-503,I0002页

作者：邓辉董非非江西省地震局中国南昌330096

通过对赣南地区历史地震资料系统地调查研究,以地域人文背景、史志记载情况等为切入点,综合考证历史地震记载的完整性,并在充分挖掘可用信息的基础上,对公元412年、1603年、1847年和1888年等历史地震事件进行了甄别和参数核定。研究表明... 详细信息

通过对赣南地区历史地震资料系统地调查研究,以地域人文背景、史志记载情况等为切入点,综合考证历史地震记载的完整性,并在充分挖掘可用信息的基础上,对公元412年、1603年、1847年和1888年等历史地震事件进行了甄别和参数核定。研究表明,公元1500年之后赣南地区的地震记载相对较连续;区内地震活动呈自东南向西北逐渐减弱的趋势,且地震主要分布在NE或NNE向主干断裂附近,以及主干断裂与NW向断裂的交接复合地区;原地重复发生地震的频率相对较高。该结果可用于修定新版地震目录、开展重大建设项目工程场地的地震安全性评价及历史地震调查等工作中,为区域地震活动性研究、防震减灾规划决策等提供基础依据。

关键词：历史地震地震参数复核赣南地区

穴位贴敷联合揿针治疗慢性阻塞性肺疾病急性加重期临床疗效观察

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中国基层医药 2023年第6期30卷 840-846页

作者：董菲菲彭莉程丽水市中医院呼吸与危重症医学科丽水323000

目的探究穴位贴敷联合揿针治疗慢性阻塞性肺疾病急性加重期(acute exacerbation of chronic obstructive pulmonary disease,AECOPD)临床疗效。方法回顾性选取丽水市中医院2022年2-8月收治的AECOPD患者86例为观察对象,按照治疗方案不同... 详细信息

目的探究穴位贴敷联合揿针治疗慢性阻塞性肺疾病急性加重期(acute exacerbation of chronic obstructive pulmonary disease,AECOPD)临床疗效。方法回顾性选取丽水市中医院2022年2-8月收治的AECOPD患者86例为观察对象,按照治疗方案不同分为A组(29例)、B组(29例)和联合组(28例),三组均给予常规西药治疗,在此基础上,给予A组穴位贴敷治疗,B组揿针治疗,联合组穴位贴敷联合揿针治疗,比较三组的临床疗效、治疗前后的中医症候积分、肺功能指标、血气分析指标及生活质量评分。结果A组[75.86%(22/29)]、B组[79.31%(23/29)]和联合组[96.43%(27/28)]的治疗总有效率差异有统计学意义(H=6.15,P<0.05)。治疗后,三组的咳嗽、咯痰、呼吸困难评分均较治疗前降低(均P<0.05),且联合组[(1.79±0.48)分、(2.30±0.32)分、(1.96±0.43)分]、A组[(2.32±0.41)分、(2.68±0.42)分、(2.27±0.36)分]和B组[(2.17±0.50)分、(2.91±0.43)分、(2.33±0.43)分]咳嗽、咯痰、呼吸困难评分差异均有统计学意义(F=9.81、17.38、6.72,均P<0.05);三组的用力肺活量(forced vital capacity,FVC)、第1秒用力呼气量(forced expiratory volume in the first second,FEV_(1))及FEV_(1)/FVC水平均较治疗前提高(均P<0.05),且联合组[(3.95±0.47)L、(2.01±0.36)L、(82.91±13.35)%]、A组[(3.63±0.59)L、(1.76±0.21)L、(73.23±10.85)%]和B组[(3.89±0.38)L、(1.64±0.37)L、(73.91±7.62)%]FVC、第FEV_(1)及FEV_(1)/FVC差异均有统计学意义(F=3.49、9.80、7.05,均P<0.05);三组血气分析指标均较治疗前显著提高(均P<0.05),且三组血氧分压(blood oxygen partial pressure,PaO_(2))[(85.76±3.21)mmHg、(81.05±4.23)mmHg、(80.62±4.03)mmHg],二氧化碳分压(partial pressure of carbon dioxide,PaCO_(2))[(37.74±5.88)mmHg、(44.32±5.59)mmHg、(43.22±6.41)mmHg]差异均有统计学意义(F=15.50、9.88,均P<0.05);联合组与A组、B组的生活质量评分均较治疗前提高(均P<0.05),且三组[(43.97±6.34)分、(39.16±4.45)分、(40.19±4.67)分]差异有统计学意义(F=4.12,P<0.001)。结论在AECOPD治疗中,穴位贴敷联合揿针治疗相较于单一治疗疗效更为显著,改善中医症候和血气分析指标明显,可有效增强肺功能,提高患者生活质量。

关键词：针刺穴位中草药联合辅助肺疾病,慢性阻塞性呼吸功能血气分析生活质量治疗结果

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有机膨润土废水处理及回用工程设计

给水排水 2022年第11期48卷 58-63页

作者：叶舟覃卢原董菲菲陈烨徐洪亮上一环保科技(杭州)有限公司杭州310030 上一蓝膜科技(杭州)有限公司杭州310030

针对有机膨润土生产企业产品种类繁多,废水排放成分复杂,水质波动大,COD浓度高、SS浓度高、硬度高,带高温的特点,采用“分类收集、分质处理”的设计思路,针对中高浓度废水使用智能配水-混凝气浮的方式实现纳管排放,针对低浓度废水采用... 详细信息

针对有机膨润土生产企业产品种类繁多,废水排放成分复杂,水质波动大,COD浓度高、SS浓度高、硬度高,带高温的特点,采用“分类收集、分质处理”的设计思路,针对中高浓度废水使用智能配水-混凝气浮的方式实现纳管排放,针对低浓度废水采用预处理-超滤-反渗透的组合工艺实现车间用水回用。工程实践表明,设计思路可行,废水处理和回用系统能满足长期运行稳定,外排水水质稳定达标,回用水水质满足生产用水要求。

关键词：有机膨润土废水处理及回用智能配水混凝气浮超滤反渗透