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Hong Kong's Offshore Renminbi Forex Market:Past,Present,and Future

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China Forex 2022年第4期 32-34页

作者： he xiaobo the Bank of China(Hong Kong) China

Hong Kong's offshore renminbi foreign exchange market has become an integral part of the international foreign exchange market after years of *** market will continue to facilitate Hong Kong as an international financ... 详细信息

关键词： Market offshore continue

Efficacy of the hypoxia-activated prodrug evofosfamide (TH-302) in nasopharyngeal carcinoma in vitro and in vivo

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Cancer Communications 2018年第1期38卷 179-187页

作者： Yan Huang Ying Tian Yuanyuan Zhao Cong Xue Jianhua Zhan Lin Liu xiaobo he Li Zhang State Key Laboratory of Oncology in South China Collaborative Innovation Center for Cancer MedicineGuangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and TherapySun Yat-sen University Cancer CenterGuangzhou 510060GuangdongP.R.China Department of Medical Oncology Sun Yat-sen University Cancer CenterGuangzhou 510060GuangdongP.R.China Department of Experimental Research Sun Yat-Sen University Cancer CenterGuangzhou 510060GuangdongP.R.China Department of Medical Oncology The Fifth Affiliated HospitalSun Yat-Sen UniversityZhuhai 519000GuangdongP.R.China Department of Radiation Oncology The Fifth Affiliated HospitalSun Yat-Sen UniversityZhuhai 519000GuangdongP.R.China

Background:Tumor hypoxia is considered an important factor in metastasis and disease *** is a hypoxia-activated prodrug that selectively targets the hypoxic regions of solid *** hypoxia-inducible factor-1α(HIF-1α)is overexpressed in nasopharyngeal carcinoma(NPC)tissues,we performed the present study to evaluate the efficacy profile of evofosfamide in ***:We evaluated the efficacy of evofosfamide as a single agent or combined with cisplatin(DDP)in the NPC cell lines CNE-2,HONE-1 and HNE-1,and in nude mouse xenograft tumor ***:Evofosfamide exhibited hypoxia-selective cytotoxicity in NPC cell lines,with 50%inhibition concentration(IC50)values of 8.33±0.75,7.62±0.67,and 0.31±0.07μmol/L under hypoxia in CNE-2,HONE-1 and HNE-1 cells,*** sensitization ranged from ninefold to greater than 300-fold under hypoxia compared with normoxia *** combination of evofosfamide with DDP had a synergistic effect on cytotoxicity in the NPC cell lines by combination index values *** cycle G2 phase was arrested after treated with 0.05μmol/L evofosfamide under *** H2AX phosphorylation(γH2AX)(a marker of DNA damage)expression increased while HIF-1αexpression suppressed after evofosfamide treatment under hypoxic *** the HNE-1 NPC xenograft models,evofosfamide exhibited antitumor activity both as a single agent and combined with *** regions in xeno-graft tissue were reduced after both evofosfamide monotherapy and combined therapy with ***:Our results present preclinical evidence for targeting the selective hypoxic portion of NPC by evofosfa-mide as a single agent and combined with DDP and provide rationale for the potential clinical application of evofosfa-mide for the treatment of nasopharyngeal carcinoma.

关键词： Nasopharyngeal carcinoma(NPC) Hypoxia-induced factor-1α(HIF-1α) Hypoxia-activated prodrug Chemotherapy Xenograft tumor models

Dissolved organic carbon fractionation in wet deposition and its potential impact on radiative forcing in the central Tibetan Plateau

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Research in Cold and Arid Regions 2023年第4期15卷 171-178页

作者： ZhaoFu Hu ChaoLiu Li ShiChang Kang XiaoFei Li Chao Zhang Fangping Yan xiaobo he PengFei Chen State Key Laboratory of Cryospheric Science Northwest Institute of Eco-environment and ResourcesChinese Academy of SciencesLanzhouGansu 730000China School of Environmental Science and Engineering Shaanxi University of Science and TechnologyXi'anShaanxi 710021China University of Chinese Academy of Sciences Beijing 100049China

As an important component of carbonaceous matters,dissolved organic carbon(DOC)can absorb and scatter the solar radiation at ultraviolet and blue *** wet deposition process has great impact on the con-centration and light absorption ability of precipitation DOC,affecting the climatic effect caused by DOC in the *** this study,light absorption and fluorescence characteristics of precipitation DOC was investigated in the central Tibetan Plateau(TP).The results showed that the mean DOC concentration and mass absorption cross-section measured at 365 nm(MAC_(365)) in Tanggula(TGL)station were 0.59±0.42 mg/L and 0.37±0.19 m^(2)/g,respectively,while both values showed much higher volatilities than those of *** concentrations had significant negative correlation with the precipitation amount,while MAC_(365) values increase with the precipitation amount in TGL ***,DOC with high light-absorbing ability was preferred to be retained in the atmosphere during wet *** this study,precipitation DOC contained three fluorescent components(one humic-like component and two tyrosine-like components)mainly from local biomass burning *** concentration showed a negative relationship with MAC_(365) value in TGL *** wet deposition of DOC with low light-absorbing ability can reduce the strong negative radiative forcing caused by secondary organic aerosol due to high proportion of DOC in secondary organic *** phenomenon was also found in Nam Co,Lulang and Everest stations of previous study,which may have a potential impact on radiative forcing in the atmosphere of TP.

关键词： Tibetan Plateau Wet deposition Dissolved organic carbon Light absorption ability Fluorescence characteristics

Did Civilian Granaries Affect Social Stability？ Empirical Evidence from the Qing Dynasty （1817-1856）

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Frontiers of Economics in China-Selected Publications from Chinese Universities 2015年第3期10卷 483-508页

作者： Wang, Fang Miao, Degang he, xiaobo Shanghai Univ Finance & Econ Sch Econ Shanghai 200433 Peoples R China Shanghai Finance Univ Sch Int Econ & Trade Shanghai 201209 Peoples R China Univ Adelaide Global Food Studies Adelaide SA 5005 Australia

Based on historical panel data of social instability, civilian granary and climate shocks in the 17 Provinces of the Qing from 1817 to 1856, this paper examines the correlation between social instability and civilian granary holdings. It shows that the civilian granary system reduced social instability in the Qing Dynasty, while climate shocks raised social instability. Moreover, this paper shows that civilian granaries mitigated the effects of climate shocks on social instability.

关键词： climate shocks civilian granaries social instability

Metal-organic frameworks for highly efficient oxygen electrocatalysis

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Chinese Journal of Catalysis 2018年第2期39卷 207-227页

作者： xiaobo he Fengxiang Yin Hao Wang Biaohua Chen Guoru Li State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China Advanced Catalysis and Green Manufacturing Collaborative Innovation Center Changzhou University Changzhou 213164 Jiangsu China College of Chemical Engineering Beijing University of Chemical Technology Beijing 100029 China Beijing Key Laboratory of Energy Environmental Catalysis Beijing 100029 China Changzhou Institute of Advanced Materials Beijing University of Chemical Technology Changzhou 213164 Jiangsu China

Metal‐organic frameworks(MOFs)are a series of highly porous crystalline materials,which are built from inorganic metal nodes and organic linkers through coordination *** unique porous structural features(such as high porosity,high surface areas,and highly ordered nanoporous structures)and designable structures and compositions have facilitated their use in gas capture,separation,catalysis,and energy storage and ***,the design and synthesis of pure MOFs and their derivatives have opened new routes to develop highly efficient electrocatalysts toward oxygen reduction reactions(ORR)and oxygen evolution reactions(OER),which are the core electrode reactions in many energy storage and conversion techniques,such as metal‐air batteries and fuel *** review first discusses recent progress in the synthesis and the electrocatalytic applications of pure MOF‐based electrocatalysts toward ORR or OER,including pure MOFs,MOFs decorated with active species,and MOFs incorporated with conductive *** following section focuses on the advancements of the design and preparation of various MOF‐derived materials-such as inorganic nano‐(or micro‐)structures/porous carbon composites,pure porous carbons,pure inorganic nano‐(or micro‐)structured materials,and single‐atom electrocatalysts-and their applications in oxygen ***,we present a conclusion and an outlook for some general design strategies and future research directions of MOF‐based oxygen electrocatalysts.

关键词： Metal‐organic frameworks Porous materials Electrocatalysis Oxygen reduction reaction Oxygen evolution reaction Energy storage and conversion

Uniaxial stress effect on quasi-one-dimensional Kondo lattice CeCo_(2)Ga_(8)

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Chinese Physics B 2022年第6期31卷 104-108页

作者： Kangqiao Cheng Binjie Zhou Cuixiang Wang Shuo Zou Yupeng Pan xiaobo he Jian Zhang Fangjun Lu Le Wang Youguo Shi Yongkang Luo Wuhan National High Magnetic Field Center and School of Physics Huazhong University of Science and TechnologyWuhan 430074China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100190China Shenzhen Institute for Quantum Science and Engineering and Department of PhysicsSouthern University of Science and TechnologyShenzhen 518055China

Quantum critical phenomena in the quasi-one-dimensional limit remain an open *** report the uniaxial stress effect on the quasi-one-dimensional Kondo lattice CeCo_(2)Ga_(8) by electric transport and AC heat capacity ***_(2)Ga_(8) is speculated to sit in close vicinity but on the quantum-disordered side of a quantum critical *** compressing the c axis,parallel to the Ce-Ce chain,the onset of coherent Kondo effect is *** contrast,the electronic specific heat diverges more rapidly at low temperature when the intra-chain distance is elongated by compressions along a or b *** results suggest that a tensile intra-chain strain(ε_(c)>0)pushes CeCo_(2)Ga_(8) closer to the quantum critical point,while a compressive intra-chain strain(ε_(c)he way for further investigations on the unique feature of quantum criticality in the quasi-1D limit.

关键词： heavy-fermion compounds Kondo effect RKKY interaction quantum critical point

High Asia cryospheric observation:a proposed network under Global Cryosphere Watch(GCW)

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Research in Cold and Arid Regions 2012年第1期4卷 1-12页

作者： CunDe Xiao ZhongQin Li Lin Zhao ShiChang Kang YuanQing he Xiang Qin xiaobo he State Key Laboratory of Cryospheric Sciences CoM and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou Gansu 730000 China Institute of Climate System Chinese Academy of Meteorological Science China Meteorology Administration Beij＇ing 100081 China Institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing 100871 China

In coordination with Global Cryosphere Watch （GCW） initiated by World Meteorology Administration （WMO）, a regional ob- servation network is proposed based on existing stations/sites over High Asia and cryospberic elements required by GCW. Thus, High Asian Cryosphere （HAC） network is preliminary designed, composing of seven ＂supersites＂, each containing several refer- ence sites. The network covers major mountain ranges in High Asia, such as East Tianshan, Qilian, Tanggula, Nyainqentanglha, Himalayas as well as the central and eastern Qinghai-Xizang （Tibet） Plateau. Although multiple cryospberic elements were ob- served at the existing HAC network, many others, which are required by Integrated Global Observation System-Cryosphere Theme （IGOS-Cryosphere）, are not yet included. More comprehensive observations are necessary to be included into ＂supersites＂ of HAC, so that the basic requirements for validation of satellite data, assimilation and coupled regional models can be met.

关键词： cryosphere reference site supersite standardization High Asia

M-MOF-74(M=Ni,Co,Zn)的制备及其电化学催化合成氨性能

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化工学报 2020年第6期71卷 2857-2870页

作者：杨通何小波银凤翔北京化工大学化学工程学院北京100029 常州大学石油化工学院江苏常州213164

将自然界丰富的氮转化为氨对人类社会发展至关重要。以氮和水为原料的电化学合成氨是极具应用前景的绿色合成过程。采用水热法合成了Ni-,Co-和Zn-MOF-74催化剂,采用XRD、SEM以及XPS等表征了催化剂结构,并在0.1 mol·L^-1 Na2SO4电解液... 详细信息

将自然界丰富的氮转化为氨对人类社会发展至关重要。以氮和水为原料的电化学合成氨是极具应用前景的绿色合成过程。采用水热法合成了Ni-,Co-和Zn-MOF-74催化剂,采用XRD、SEM以及XPS等表征了催化剂结构,并在0.1 mol·L^-1 Na2SO4电解液中研究了它们的电催化合成氨性能。结果表明,在常温常压下,Ni-MOF-74的电催化合成氨性能优于Co-和Zn-MOF-74催化剂,在-0.7 V(vs Ag/AgCl)下其氨合成速率和法拉第效率分别高达6.68×10^-11 mol·s^-1·cm^-2和23.69%,这归因于Ni-MOF-74不仅颗粒尺寸小且分布均匀,而且具有最多的金属-氧键和最大的电化学比表面。特别是Ni-MOF-74还能有效抑制析氢副反应,从而提高了法拉第效率。

关键词：电催化合成氨氮还原电化学选择催化还原催化剂 MOF-74 金属有机骨架

一种基于IP数据碰撞预测的网络隐蔽信道检测算法

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科技通报 2013年第12期29卷 39-41页

作者：何小波重庆水利电力职业技术学院重庆402160

提出了一种以IP冲突信息为基础,数据碰撞概率为根据基于IP数据碰撞预测的网络隐蔽信道检测算法,通过分析隐蔽信道的特点,对信道区域进行数学区间的划分,利用IP数据冲突这一隐蔽信道特征,进行数据碰撞的预测,根据预测结果判断信道的隐蔽... 详细信息

提出了一种以IP冲突信息为基础,数据碰撞概率为根据基于IP数据碰撞预测的网络隐蔽信道检测算法,通过分析隐蔽信道的特点,对信道区域进行数学区间的划分,利用IP数据冲突这一隐蔽信道特征,进行数据碰撞的预测,根据预测结果判断信道的隐蔽性,进而完成网络隐蔽信道的有效检测。计算机仿真的实验结果表明,本文方法在正常重传率的情况下,能够较为有效地检测出网络隐藏信道,检测的准确性较高。

关键词：网络隐蔽信道 IP数据碰撞