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CaH2-promoted activity of Ni-carbonate interface for CO2 methanation

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： Jin-peng Wang Guo-Cui Mao Hui-lin Jiang Bao-xia Dong Yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the CO2hydrogenation reaction,involving surface carbonate hydrogenation and ***,there have been few reports on engineering the activity of the interface between transition metal and alkaline earth metal carbonate for catalytic *** work demonstrated that the incorporation of CaH2in Ni/CaCO3enhances the CO2methanation activity of the *** CO2conversion for Ni/CaH2-CaCO3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO3（31.6%） and Ni/CaH2-CaO （42.4%） ***,the Ni/CaH2-CaCO3catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH2played a crucial role in promoting the activity of the Ni-carbonate interface for ***2could modify the electronic structure of Ni and tune the structural properties of CaCO3to generate medium basic sites （OH groups）,which are favorable for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） analysis combined with density functional theory calculations demonstrated that CO2activation occurs at the hydroxyl group （OH） on the CaH2-modified Ni-carbonate surface,leading to the formation of CO3H****,our study has confirmed that CO2methanation over the Ni/CaH2-CaCO3catalysts proceeds via the formate pathway.

关键词： Metal hydride Ni catalysts Carbonate Metal-carbonate interface

Decreased macrophage inflammatory protein (MIP)-1α and MIP-1β increase the risk of developing nasopharyngeal carcinoma

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Cancer Communications 2018年第1期38卷 81-94页

作者： Meng-Jie Yang Jie Guo Yan-Fang Ye Sui-Hong Chen li-xia peng Chu-Yang lin Ting Hu Shang-Hang Xie Chuan-Bo Xie Qi-Hong Huang Yu-Qiang Lu Qing liu Chao-Nan Qian Su-Mei Cao State Key Laboratory of Oncology in South China Collaborative Innovation Center for Cancer MedicineSun Yat-sen University Cancer CenterGuangzhou 510060GuangdongP.R.China Department of Cancer Prevention Research Sun Yat-sen University Cancer Center651 Dongfeng Road EastGuangzhou 510060GuangdongP.R.China School of Public Health Sun Yat-sen UniversityGuangzhou 510060GuangdongP.R.China Sun Yat-sen Memorial Hospital Sun Yat-sen UniversityGuangzhou 510060GuangdongP.R.China Department of Experimental Research Sun Yat-sen University Cancer Center651 Dongfeng Road EastGuangzhou 510060GuangdongP.R.China Sihui Cancer Institute Sihui 526200GuangdongP.R.China

Background:The association of circulating inflammation markers with nasopharyngeal carcinoma(NPC)is still largely *** study aimed to comprehensively explore the relationship between circulating cytokine levels and the subsequent risk of NPC with a two-stage epidemiologic study in southern ***:The serum levels of 33 inflammatory cytokines were first measured in a hospital-based case-control study(150 NPC patients and 150 controls)using multiplex assay *** levels were categorized into two or more groups based on the proportion of sample measurements that was above the lower limit of *** ratios(ORs)and 95%confidence intervals(CIs)relating the serum marker concentration to the risk of NPC were computed by multivariable logistic regression *** associations were validated in 60 patients with NPC and 120 con-trols in a subsequent nested case-control study within a NPC screening *** interactions between serum cytokines and Epstein-Barr virus(EBV)relating to the risk of NPC were assessed using a likelihood ratio ***:The levels of serum macrophage inflammatory protein(MIP)-1αand MIP-1βin the highest categories were associated with a decreased risk of NPC in both the case-control study(MIP-1α:OR=0.49,95%CI=0.26-0.95;MIP-1β:OR=0.47,95%CI=0.22-1.00)and the nested case-control study(MIP-1α:OR=0.13,95%CI=0.03-0.62;MIP-1β:OR=0.20,95%CI=0.04-0.94),compared with those in the lowest ***,individuals with lower levels of these two cytokine markers who were EBV seropositive presented with a largely higher risk of NPC compared with patients with higher levels who were EBV seronegative in both the case-control study(MIP-1α:OR=16.28,95%CI=7.11-37.23;MIP-1β:OR=12.86,95%CI=5.9-28.05)and the nested case-control study(MIP-1α:OR=86.12,95%CI=10.58-701.03;MIP-1β:OR=115.44,95%CI=13.92-957.73).Conclusions:Decreased preclinical MIP-1αand MIP-1βlevels might be associated with a subsequently increased risk of NPC.

关键词： Nasopharyngeal carcinoma Prospective study Inflammatory cytokine Macrophage inflammatory protein Epstein-Barr virus

Detect of serum HER2 ECD in breast cancer patients and its prognostic and predictive value

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Detect of serum HER2 ECD in breast cancer patients and its p...

Increase in the variability of terrestrial carbon uptake in response to enhanced future ENSO modulation

2012全国临床微生物与感染免疫学术研讨会

作者： Wang Juan,Xu Wen,lin lihui,li Jia,peng xia,li li the First People’s Hospital of Shanghai

Background The HER2/neu protein overexpressed in 15%-30%of breast cancers.A fragment of HER-2 composed of its extracellular domain(ECD) can also be detected in the serum of some patients with breast cancer, represented a quantifiable and noninvasive tumor *** could offer additional useful prognostic or predictive information,supplement existing HER2/neu *** study was to analyze the relationship between the serum HER-2 ECD protein levels and prognosis in advanced breast cancer patients. Patients and Methods The serum HER-2 ECD levels were studied in 213 patients with breast cancer,consisted of 53 metastatic breast cancer patients and 145 healthy *** 53 metastatic patients were HER2 positivity,defined as IHC 3 or fluorescence in situ hybridization(FISH) *** serum HER-2 ECD protein levels were detected using EliSA *** relationship between the protein level and patients’ clinical features, therapeutic response and prognosis were analyzed *** serum HER-2 ECD levels≥15 ng/ ml was positive and<15 ng/ml was negative. Results The positive rates of Serum HER-2 ECD were higher in breast cancer patients than in healthy women (P<0.05).Serum HER-2/neu levels and positive rates of serum HER-2/neu in were significantly higher in IV metastatic breast cancer patients than inⅠ-Ⅲbreast cancer patients(P<0.05).Serum HER2 levels in histological HER2 positive metastatic breast cancer patients was increased after recurrence and metastasis. Conclusion Serum HER2 level is elevated in breast cancer patients,Determination of serum HER-2 ECD maybe useful in diagnosisis and be a biological prognostic indicator to predict disease recurrence.

关键词： Breast cancer serum HER-2 ECD prognosis

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 32-38页

作者： Younong li li Dan Jing peng Qidong Yang Fuqiang Yang Key Laboratory of Regional Climate-Environment for Temperate East Asia Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina Key Laboratory of Atmospheric Environment and Processes in the Boundary Layer over the Low-Latitude Plateau Region Department of Atmospheric ScienceYunnan UniversityKunmingChina

El Niño-Southern Oscillation(ENSO)is a major driver of climate change in middle and low latitudes and thus strongly influences the terrestrial carbon cycle through land-air *** the ENSO modulation and carbon flux variability are projected to increase in the future,but their connection still needs further *** investigate the impact of future ENSO modulation on carbon flux variability,this study used 10 CMIP6 earth system models to analyze ENSO modulation and carbon flux variability in middle and low latitudes,and their relationship,under different scenarios simulated by CMIP6 *** results show a high consistency in the simulations,with both ENSO modulation and carbon flux variability showing an increasing trend in the *** higher the emissions scenario,especially SSP5-8.5 compared to SSP2-4.5,the greater the increase in *** flux variability in the middle and low latitudes under SSP2-4.5 increases by 30.9%compared to historical levels during 1951-2000,while under SSP5-8.5 it increases by 58.2%.Further analysis suggests that ENSO influences mid-and low-latitude carbon flux variability primarily through *** occurrence may potentially be attributed to the increased responsiveness of gross primary productivity towards regional temperature fluctuations,combined with the intensified influence of ENSO on land surface temperatures.

关键词： Carbon variability ENSO modulation CMIP6 models

Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： xiao xiang Feng Gao Yu-Gui peng peng Wu Zong-lin li Xue-Feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

气调贮藏对猕猴桃抗坏血酸-谷胱甘肽代谢的影响

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现代食品科技 2015年第7期31卷 152-159页

作者：胡花丽王毓宁李鹏霞江苏省农业科学院农产品加工研究所江苏南京210014

为探讨气调贮藏调控猕猴桃采后衰老的可能机理。以空气比例(20.9%O2+0.04%CO2)为对照,研究了不同气体成分[CA1(2%O2+3%CO2)、CA2(2%O2+6%CO2)、CA3(5%O2+3%CO2)、CA4(5%O2+6%CO2)]对采后‘红阳’猕猴桃可溶性固形物(SSC)、可溶性总糖、淀粉、可滴定酸(TA)、抗坏血酸(ASA)和谷胱甘肽(GSH)含量,自由基(DPPH、超氧阴离子)清除能力及抗坏血酸-谷胱甘肽循环相关酶活性的影响。结果表明:较普通冷藏和其它气体成分相比,CA1(2%O2+3%CO2)处理可抑制果实SSC、可溶性总糖含量的增加,减缓淀粉、TA含量的下降。另外,CA1、CA2和CA3处理可提高猕猴桃的谷胱甘肽和抗坏血酸含量,减缓果实自由基清除能力和抗坏血酸-谷胱甘肽循环相关酶活性的下降,其中CA1处理的效果最明显。因此,2%O2+3%CO2对‘红阳’猕猴桃衰老的抑制作用与其维持果实中较高的ASA和GSH有关。

关键词：猕猴桃气调贮藏谷胱甘肽抗坏血酸抗坏血酸-谷胱甘肽循环关键酶

Porous Organic Cage‑Based Quasi‑Solid‑State Electrolyte with Cavity‑Induced Anion‑Trapping Effect for Long‑life lithium Metal Batteries

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Nano-Micro Letters 2025年第2期17卷 376-386页

作者： Wei-Min Qin Zhongliang li Wen‑xia Su Jia‑Min Hu Hanqin Zou Zhixuan Wu Zhiqin Ruan Yue‑peng Cai Kang li Qifeng Zheng School of Chemistry South China Normal UniversityGuangzhou 510006People’s Republic of China Key Laboratory of Functional Metal‑Organic Compounds of Hunan Province College of Chemistry and Material ScienceHengyang Normal UniversityHengyang 421008People’s Republic of China Guangzhou Key Laboratory of Energy Conversion and Energy Storage Materials Guangzhou 510006People’s Republic of China

Porous organic cages(POCs)with permanent porosity and excellent host–guest property hold great potentials in regulating ion transport behavior,yet their feasibility as solid-state electrolytes has never been testified in a practical ***,we design and fabricate a quasi-solid-state electrolyte(QSSE)based on a POC to enable the stable operation of li-metal batteries(LMBs).Benefiting from the ordered channels and cavity-induced anion-trapping effect of POC,the resulting POC-based QSSE exhibits a high li+transference number of 0.67 and a high ionic conductivity of 1.25×10^(−4) S cm^(−1) with a low activation energy of 0.17 *** allow for homogeneous li deposition and highly reversible li plating/stripping for over 2000 *** a proof of concept,the LMB assembled with POC-based QSSE demonstrates extremely stable cycling performance with 85%capacity retention after 1000 ***,our work demonstrates the practical applicability of POC as SSEs for LMBs and could be extended to other energy-storage systems,such as Na and K batteries.

关键词： Porous organic cage Cavity-induced anion-trapping Quasi-solid-state electrolyte Homogeneous li+flux lithium metal battery

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一步水热法合成荧光碳点检测锰(Ⅶ)

分析化学 2019年第5期47卷 731-738页

作者：李俊芬王冬秀李鹏霞董川山西大学化学化工学院山西大学环境科学与工程研究中心

以苦杏仁酸和脯氨酸为碳源和氮掺杂剂,采用一步水热法合成氮掺杂的蓝色荧光水溶性碳点（CDs）,通过透射电镜、红外光谱、X射线光电子能谱、紫外可见吸收光谱和荧光光谱法等手段进行表征。合成的CDs粒径均匀,尺寸约为（2.62±0.20） nm,... 详细信息

以苦杏仁酸和脯氨酸为碳源和氮掺杂剂,采用一步水热法合成氮掺杂的蓝色荧光水溶性碳点（CDs）,通过透射电镜、红外光谱、X射线光电子能谱、紫外可见吸收光谱和荧光光谱法等手段进行表征。合成的CDs粒径均匀,尺寸约为（2.62±0.20） nm,表面存在氨基、羟基、羧基、CC等官能团。最大激发和发射波长分别为360和450 nm,具有典型的激发波长依赖性,相对量子产率为7.86%,稳定性好。基于荧光共振能量转移（FRET）原理,CDs的荧光可被MnⅦ有效猝灭。在1～100μmol/L （即0.055～5.500 mg/L）范围内,MnⅦ浓度与CDs的荧光猝灭程度呈线性关系,相关系数（R;）为0.9986,检出限为0.04μmol/L （2.20μg/L）,具有高灵敏度和良好的选择性。此CDs可进入HepG2细胞内,发出蓝光,且胞内荧光强度与MnⅦ浓度大致呈线性关系。将此碳点用于环境水样和细胞内MnⅦ含量的检测,结果良好。

关键词：碳点合成荧光猝灭锰Ⅶ检测

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方向采样的离散方向滤波器实现导向滤波

系统工程与电子技术 2008年第7期30卷 1227-1231页

作者：李军侠水鹏朗西安电子科技大学雷达信号处理重点实验室

针对在图像处理中被广泛使用的导向滤波器,提出了一种比较实际的问题,即方向滤波器为方向上采样的一组离散滤波器,而且它们的解析表达式不知道的情形。为减少运算量,方形边框上旋转的方式被提出,这样旋转变换不涉及正弦、余弦三角运算... 详细信息

针对在图像处理中被广泛使用的导向滤波器,提出了一种比较实际的问题,即方向滤波器为方向上采样的一组离散滤波器,而且它们的解析表达式不知道的情形。为减少运算量,方形边框上旋转的方式被提出,这样旋转变换不涉及正弦、余弦三角运算。仿真实验结果验证了所提算法的有效性。同时还给出了一个有意义的结果,利用小波实现近似导向的方向滤波。

关键词：导向滤波器方向离散滤波器组奇异值分解方向滤波器小波滤波器