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基于LM-BP神经网络的办公建筑逐时空调能耗预测

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建筑节能（中英文） 2024年第1期52卷 58-64页

作者：王曦甘灵丽王亮欧雪梅四川省建筑设计研究院有限公司成都610000 西南科技大学四川绵阳621010 泸州老窖股份有限公司四川泸州646000

利用LM算法对BP神经网络进行改进,以提高模型收敛速度,减少迭代次数,并分别对夏季、冬季空调能耗模拟数据进行样本训练和测试,构建了LM-BP神经网络的办公建筑逐时空调能耗预测模型。结果表明夏季模型的预测值和模拟值之间的MAPE误差平均... 详细信息

利用LM算法对BP神经网络进行改进,以提高模型收敛速度,减少迭代次数,并分别对夏季、冬季空调能耗模拟数据进行样本训练和测试,构建了LM-BP神经网络的办公建筑逐时空调能耗预测模型。结果表明夏季模型的预测值和模拟值之间的MAPE误差平均为5.74%,冬季模型的MAPE误差平均为5%,其误差均在10%以内,说明LM-BP神经网络在建筑空调能耗预测方面的可行性。并以成都地区某办公建筑实际空调能耗数据为基础对该模型进行了验证,其预测值与实际值平均相对误差为6.6%,说明建立的能耗预测模型能够满足实际工程的需要,准确的用电预测数据可为办公建筑用电侧进行实际电力市场交易提供科学的决策依据。

关键词：空调能耗 LM算法神经网络办公建筑

Preparation of nanometer gold particles by phospholipids with different chain lengths at the air-water surface

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Chinese Science Bulletin 1998年第9期43卷 789-790页

作者： ou, xuemei Li, Jinru Li, Xingchang Jiang, Long Institute of Photographic Chemistry Chinese Academy of Sciences Beijing China

New two-layer Ruddlesden-Popper cathode materials for protonic ceramics fuel cells

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Journal of Advanced Ceramics 2021年第5期10卷 1052-1060页

作者： Yihan LING Tianming GUO Yangyang GUO Yang YANG Yunfeng TIAN Xinxin WANG xuemei ou Peizhong FENG School of Materials Science and Physics China University of Mining and TechnologyXuzhou 221116China

New two-layer Ruddlesden-Popper(RP)oxide La_(0.25)Sr_(2.75)FeNiO_(7-δ)(LSFN)in the combination of Sr_(3)Fe_(2)O_(7-δ) and La_(3)Ni_(2)O_(7-δ) was successfully synthesized and studied as the potential active single-phase and composite cathode for protonic ceramics fuel cells(PCFCs).LSFN with the tetragonal symmetrical structure(IMmmm)is confinned,and the co-existence of Fe^(3+)/Fe^(4+) and Ni^(3+)/Ni^(2+) couples is demonstrated by X-ray photoelectron spectrometer(XPS)*** LSFN conductivity is apparently enhanced after Ni doping in Fe-site,and nearly three times those of Sr_(3)Fe_(2)O_(7-δ),which is directly related to the carrier concentration and conductor ***,anode supported PCFCs using LSFN-BaZr_(0.1)Ce_(0.7)Y_(0.2)O_(3-δ)(LSFN-BZCY)composite cathode achieved high power density(426 mW·cm^(-2) at 650℃)and low electrode interface polarization resistance(0.26Ω·cm^(2)).Besides,distribution of relaxation time(DRT)function technology was further used to analyse the electrode polarization *** observed three peaks(Pl,P2,and P3)separated by DRT shifted to the high frequency region with the decreasing temperature,suggesting that the charge transfer at the electrode-electrolyte interfaces becomes more difficult at reduced *** results demonstrate that new two-layer RP phase LSFN can be a promising cathode candidate for PCFCs.

关键词： protonic ceramics fuel cells(PCFCs) Ruddlesden-Popper(RP)phase single-phase cathode distribution of relaxation time(DRT)function charge transfer

Association of chronic obstructive pulmonary disease with type 2 diabetes mellitus

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Chinese Medical Journal 2014年第17期127卷 3185-3186页

作者： Wang Maoyun Yang Jing Ke Hua Wang Bo Liang Binmiao ou xuemei Feng Yulin Department of Respiratory Medicine West China Hospital of Sichuan University Chengdu Sichuan 610041 China Department of Respiratory Medicine Chengdu Tumor Hospital Chengdu Sichuan 610041 China

Chronic obstructive pulmonary disease （COPD） is a complex disorder, characterized by an irreversible airflow limitation during breathing. This may lead to various extrapulmoanry comorbidities, such as cardiovascular disease, osteoporosis, and diabetes mellitus （DM）. Type 2 （T2DM） accounts for a large proportion of DM, and is also showing a rising prevalence in developed and developing countries. In addition to the known factors for T2DM, several studies have demonstrated that COPD is also an important risk factor for T2DM. In this study, we aimed to determine the prevalence of COPD in patients with T2DM, and to analyze the clinical characteristics of COPD accompanied by T2DM.

关键词： chronic obstructive pulmonary disease type 2 diabetes mellitus comorbidity

“Reinforced concrete”-like flexible transparent electrode for organic solar cells with high efficiency and mechanical robustness

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Science China Chemistry 2022年第6期65卷 1164-1172页

作者： Yang Chen Juanyong Wan Guiying Xu Xiaoxiao Wu Xinqi Li Yunxiu Shen Fu Yang xuemei ou Yaowen Li Yongfang Li Laboratory of Advanced Optoelectronic Materials Suzhou Key Laboratory of Novel Semiconductor-optoelectronics Materials and DevicesCollege of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou215123China State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Jiangsu Key Laboratory of Advanced Functional Polymer Dsign and ApplicationSoochow UniversitySuzhou215123China Beijing National Laboratory for Molecular Sciences Institute of ChemistryChinese Academy of SciencesBeijing100190China

Flexible transparent electrodes(FTEs) with robust mechanical stability are crucial for the industrial application of flexible organic solar cells(OSCs). However, their production remains challenging owing to the difficulty in balancing the conductivity,transmittance, and adhesion of FTEs to substrates. Herein, we present the so-called “reinforced concrete” strategy which finetunes the structure of silver nanowires(Ag NWs)-based FTEs with polydopamine(PDA) possessing good adhesion properties and moderate reducibility. The PDA reduces Ag+to form silver nanoparticles(Ag NPs) which grow like “rivets” at the Ag NW junction sites;PDA stabilizes the Ag NW skeleton and improves the adhesion between the Ag NWs and polyethylene terephthalate(PET) substrate and interface layer. The obtained Ag NW:PDA:Ag NP FTE exhibits excellent optoelectronic properties and high mechanical stability. The resulting flexible OSCs exhibit 17.07% efficiency, high flexibility during 10,000 bending test cycles, and robust peeling stability. In addition, this “reinforced concrete”-like FTE provides great advantages for the production of large-area flexible OSCs, thereby paving a new way toward their commercial application.

关键词： flexible organic solar cells flexible transparent electrodes silver nanowires polydopamine mechanical stability

Association of chronic obstructive pulmonary disease with coronary artery disease

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Association of chronic obstructive pulmonary disease with co...

中华医学会呼吸病学年会——2013（第十四次全国呼吸病学学术会议）

作者： Binmiao Liang Zhibo Xu Qun Yi xuemei ou Yulin Feng Department of Respiratory Medicine West China Hospital of Sichuan University Department of Respiratory Medicine No.2 People’s Hospital of Chengdu

Purpose:To explore the association of chronic obstructive pulmonary disease(COPD) with coronary artery disease(CAD),especially with multi-vessel disease(VD). Methods:The data of 354 in-patients who underwent Multi-det...

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热喷涂铝涂层在矿井水中的耐蚀性能研究

中国矿业大学学报 1999年第3期28卷 251-254页

作者：孙智王温银欧雪梅中国矿业大学机电工程学院中国矿业大学大正表面技术公司

应用腐蚀失重方法和电化学极化技术研究了热喷涂铝涂层在矿井水环境下的耐腐蚀性能，并与普通碳钢Ｑ２３５进行对比．实验结果表明，在一般中性矿井水中，涂层的自腐蚀电位附近的腐蚀受阴极氧扩散控制，当电位较高时，阳极上有氢析出，... 详细信息

应用腐蚀失重方法和电化学极化技术研究了热喷涂铝涂层在矿井水环境下的耐腐蚀性能，并与普通碳钢Ｑ２３５进行对比．实验结果表明，在一般中性矿井水中，涂层的自腐蚀电位附近的腐蚀受阴极氧扩散控制，当电位较高时，阳极上有氢析出，阳极反应由此变得复杂；用阴极极化能更好地显示涂层的电化学极化过程．热喷涂铝层具有较高的耐蚀性，实验涂层的预计使用寿命为２０ａ．比较了用失重法和电化学法计算涂层腐蚀速度的结果；

关键词：热喷涂铝耐腐蚀性电化学矿井水钢铁构件

Association of HHIP polymorphisms with COPD and COPD-related phenotypes in a Chinese Han population

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Association of HHIP polymorphisms with COPD and COPD-related...

化学镀Ni-Co-Cu-P非晶镀层及其耐蚀性能

中华医学会呼吸病学年会——2013（第十四次全国呼吸病学学术会议）

作者： Bo Wang Haixia Zhou Jing Yang Jun Xiao Binmiao Liang xuemei ou Yulin Feng Department of Respiratory Medicine West China HospitalSichuan University

The Hedgehog signaling pathway plays an important role in lung morphogenesis and cellular responses to lung ***-wide association studies(GWAS) and integrative genomics approaches have demonstrated the associations between HHIP polymorphisms and chronic obstructive pulmonary disease(COPD) and in non-Asian *** we investigated whether HHIP polymorphisms would also be associated with COPD susceptibility and COPD-related phenotypes in a Chinese Han population. In the present case-control study a total of 680 COPD

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稀有金属材料与工程 2016年第11期45卷 2965-2969页

作者：张含卓李晶欧雪梅陈辉中国矿业大学江苏徐州221116

采用化学镀工艺在45钢表面制备Ni-Co-Cu-P四元合金镀层,通过EDX、XRD、SEM、盐雾试验、Tafel曲线等测试方法研究镀层的成分、晶型结构和耐蚀性能。结果表明:Ni-Co-Cu-P镀层为非晶结构,其中Ni、Co、Cu的含量分别为32.66%、47.19%和15.28%... 详细信息

采用化学镀工艺在45钢表面制备Ni-Co-Cu-P四元合金镀层,通过EDX、XRD、SEM、盐雾试验、Tafel曲线等测试方法研究镀层的成分、晶型结构和耐蚀性能。结果表明:Ni-Co-Cu-P镀层为非晶结构,其中Ni、Co、Cu的含量分别为32.66%、47.19%和15.28%(质量分数)。镀层表面均匀分布着直径240~500 nm的球状团簇,一些团簇内部存在纳米级孔隙。镀层经156 h盐雾后出现明显红色锈点,192 h后完全失效。镀层的耐蚀性能明显优于45钢基体和Ni-Co-P镀层。在1.0%H_2SO_4溶液中,镀层的自腐蚀电位和腐蚀电流密度分别为–0.26 V和19.17μA·cm-2,随着电位的升高表面出现大量微裂纹。而在3.5%NaCl(质量分数)溶液中,镀层表现出活化-钝化-过钝化的腐蚀行为,表面钝化膜逐渐被Cl^-穿透而形成针孔。

关键词：化学镀非晶镀层显微结构腐蚀盐雾实验