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Highly efficient pH-universal hydrogen evolution reaction catalyzed by rapidly reconstructed bimetallic cobalt-molybdenum alloy cuboids arrays

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Nano Research 2024年第8期17卷 6977-6983页

作者： Daolian liu Zihao wang Yan Zhang Haiqing Zhou Yong Zhang Dongyang Li Fang Yu Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Key Laboratory for Matter Microstructure and Function of Hunan ProvinceDepartment of Physics and Synergetic Innovation Center for Quantum Effects and ApplicationsHunan Normal UniversityChangsha 410081China State Key Laboratory of Marine Resource Utilization in south china sea and Department of Materials Science and EngineeringHainan UniversityHaikou 570228China institute of Interdisciplinary Studies Hunan Normal UniversityChangsha 410081China

Given the inherent potential of seawater,industrial wastewater,and residential water as inherent feedstocks for hydrogen production through water electrolysis,there is a critical demand for the exploration of robust and stable hydrogen-evolving catalysts that can operate effectively across a diverse range of pH ***,the pursuit of hydrogen-evolving electrocatalysts that demonstrate both good stability and high efficiency over a wide pH range remains a formidable *** we report the rational design and synthesis of an outstanding nanoporous hybrid electrocatalyst consisting of intermetallic cobalt-molybdenum alloy particles anchoring on MoO2 cuboid arrays,which demands very low overpotentials of 72,123 and 134 mV to deliver a current density of−100 mA·cm^(−2)for hydrogen evolution reaction under alkaline,neutral and acidic conditions,*** catalytic activities are superior to most non-precious-metal-based catalysts documented in the literatures,and are even comparable to noble metal *** particular,this alloy electrocatalyst exhibits excellent stability at 50 or 300 mA·cm^(−2)without obvious activity degradation,which is further supported by the undetectable changes in the surface chemical valence states on the basis of in-situ X-ray photoelectron spectroscopic *** study provides an innovative strategy for the design and synthesis of effective non-noble intermetallic catalysts for pH-universal hydrogen evolution over a wide pH range.

关键词： electrocatalyst hydrogen evolution reaction pH-universal non-noble water splitting

seasonal dynamics of soil CO_2 effluxes with responses to environmental factors in lower subtropical forests of china

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Science china Earth sciences 2006年第S2期49卷 139-149页

作者： ZHANG Deqiang, SUN Xiaomin, ZHOU Guoyi, YAN Junhua, wang Yuesi, liu Shizhong, ZHOU Cunyu, liu Juxiu, TANG Xuli, LI Jiong & ZHANG Qianmei south china Botanical Garden, chinese academy of sciences, guangzhou 510650, china institute of Geographical sciences and Natural Resoureces, chinese academy of sciences, Beijing 100101, china institute of Atmospheric Physics, chinese academy of sciences, Beijing 100083, china

seasonal metrics and environmental responses to forestry soil surface CO2 emission effluxes among three types of lower subtropical forests were consistently monitored over two years with static chamber-gas chromatograph techniques among three types of lower subtropical forests. Results showed that annual CO2 effluxes (S+L) reached 3942.20, 3422.36 and 2163.02 CO2 g·m-2·a-1, respectively in the monsoon evergreen broadleaf forest, mixed broadleaf-coniferous forest and coniferous forest. All the three types of forests revealed the same characteristics of seasonal changes with the CO2 effluxes peaking throughout June to August. During this peaking period, the effluxes were 35.9%, 38.1% and 40.2% of the total annual effluxes, respectively. The CO2 emission process responding to the environmental factors displayed significantly different patterns in forestry soils of the three types of forests. The coniferous forest (CF) was more sensitive to temperature than the other two types. The Q10 values were higher, along with greater seasonal variations of the CO2 efflux, indicating that the structurally unique forestry ecosystem has disadvantage against interferences. All the three types of forestry CO2 effluxes showed significant correlation with the soil temperature (Ts), soil water content (Ms) and air pressure (Pa). However, stepwise regression analysis indicated no significant correlation between air pressure and the soil CO2 efflux. With an empirical model to measure soil temperature and water content in 5 cm beneath the soil surface, the CO2 effluxes accounting for 75.7%, 77.8% and 86.5% of the efflux variability respectively in soils of BF, MF and PF were calculated. This model can be better used to evaluate the CO2 emission of soils under water stress and arid or semi-arid conditions.

关键词： forestry soil CO2 emission seasonal dynamic metrics environmental factors responses.

Efficacy and safety of anlotinib combined with the STUPP regimen in patients with newly diagnosed glioblastoma: a multicenter, single-arm, phase Ⅱ trial

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Cancer Biology & Medicine 2024年第5期21卷 433-444页

作者： Shuzhen Lai Peijing Li Xiaohui liu Guihong liu Tieming Xie Xing Zhang Xiaoxuan wang Jing Huang Yiqiang Tang Zhigang liu Guoping Shen Chaoming Li Fangxiao Lu Lei wang Fagui Jiang Caixing Sun Yuanyuan Chen Ming Chen Department of Radiation Oncology The Second Affiliated Hospital of Soochow UniversitySuzhou 215000China Department of Radiation Oncology Yuebei People’s Hospital Affiliated to the Medical College of Shantou UniversityShaoguan 512026China Chinese Academy of SciencesHangzhou 310022China Department of Radiation Oncology The Second Clinical Medical College of Zhejiang Chinese Medical UniversityHangzhou 311403China Department of Radiation Oncology The Affiliated Hospital of Xuzhou Medical UniversityXuzhou 221004China Chinese Academy of SciencesHangzhou 310022China State Key Laboratory of Translational Medicine and Innovative Drug Development Jiangsu Simcere Diagnostics Co.LtdNanjing 210000China Department of Radiation Oncology The Affiliated Huai’an First People’s Hospital of Nanjing Medical UniversityHuai’an 223399China Department of Radiation Oncology Jiangxi Cancer Hospital of Nanchang UniversityNanchang 330029China Department of Radiotherapy Dongguan Institute of Clinical Cancer ResearchDongguan Key Laboratory of Precision Diagnosis and Treatment for TumorsAffiliated Dongguan HospitalSouthern Medical UniversityDongguan 523059China The Cancer Center The Fifth Affiliated Hospital of Sun Yat-Sen UniversityZhuhai 519000China Department of Radiation Oncology The First Affiliated Hospital of Sun Yat-Sen UniversityGuangzhou 510080China Department of Oncology Maoming People’s HospitalMaoming 525000China Department of Radiation Oncology Kecheng District People’s HospitalQuzhou 324003China Chinese Academy of SciencesHangzhou 310022China Department of Radiation Oncology State Key Laboratory of Oncology in South ChinaSun Yat-sen University Cancer CenterGuangzhou 510060China United Laboratory of Frontier Radiotherapy Technology of Sun Yat-sen University&chinese academy of sciences Ion Medical Technology Co. LtdGuangzhou 510060China

Objective:Glioblastomas are highly vascularized malignant *** determined the efficacy and safety of the anti-angiogenic multi-kinase inhibitor,anlotinib,for a newly diagnosed ***:This multicenter,single-arm trial(NCT04119674)enrolled 33 treatment-naïve patients with histologically proven glioblastomas between March 2019 and November *** underwent treatment with the standard STUPP regimen[fractionated focal irradiation in daily fractions of 1.8-2 Gy given 5 d/w×6 w(total=54-60 Gy)]or radiotherapy plus continuous daily temozolomide(TMZ)(75 mg/m^(2)of body surface area/d,7 d/w from the first to the last day of radiotherapy),followed by 6 cycles of adjuvant TMZ(150-200 mg/m^(2)×5 d during each 28-d cycle)plus anlotinib(8 mg/d on d 1-14 of each 3-w cycle for 2 cycles during concomitant chemoradiotherapy,8 maximal cycles as adjuvant therapy,followed by maintenance at 8 mg/*** primary endpoint was progression-free survival(PFS).Secondary endpoints included overall survival(OS)and adverse events(AEs).Results:Thirty-three patients received the planned *** median PFS was 10.9 months(95%CI,9.9-18.7 months)and the 12-month PFS rate was 48.5%.The median OS was 17.4 months(95%CI,14.5-21.1 months)and the 12-month OS rate was 81.8%.The most common AEs included hypertriglyceridemia[58%(n=19)],hypoalbuminemia[46%(n=15)],and hypercholesterolemia[46%(n=15)]during concurrent chemoradiotherapy and leukopenia[73%(n=24)],hypertriglyceridemia[67%(n=22)],and neutropenia[52%(n=17)]during adjuvant *** patients discontinued treatment due to ***1(HR,5.6;95%CI,1.3-23.7;P=0.021)and RP1L1 alterations(HR,11.1;95%CI,2.2-57.2;P=0.004)were associated with a significantly shorter ***:Anlotinib plus the STUPP regimen has promising anti-tumor activity against glioblastoma and manageable ***1 and RP1L1 alterations might be novel predictive biomarkers of the response to anlotinib.

关键词： Glioblastoma anti-angiogenesis multi-kinase inhibitor anlotinib temozolomide progression-free survival

Estimation of suspended sediment concentration in the Pearl River estuary from Landsat TM data

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Estimation of suspended sediment concentration in the Pearl ...

Variations of Latent Heat Flux During Tropical Cyclones over the south china sea

海洋地质、矿产资源与环境学术研讨会

作者： Chuqun CHEN, Shilin TANG, Haigang ZHAN, Dazhao liu (LED, south china, sea institute of Oceanography, chinese academy of sciences, guangzhou 510300,

Suspended sediment concentration (SSC) is not only a basic variable of water quality, but also an important parameter for coastal engineering designs and for land-sea interaction studies. In this paper a method for estimation of SSC from the satellite data acquired with Thematic Mapper (TM) sensor onboard Landsat-7. Based on the analysis of spectral properties of suspended sediment, the relationship between SSC and remote sensing reflectance was discussed. The hyper-spectral remote sensing reflectance data, which were collected during two cruises conducted in the Pearl River estuary in January 2003 and 2004 respectively, were calculated with the wavelength (bandwidth) of Landsat TM bands. A localized algorithm was obtained based on the sea truth data. And then the local algorithm was applied to Landsat TM data for estimation of SSC in the Pearl River estuary. The satellite retrieved SSC image reveals the suspended sediments distribution pattern in th Pealr River estuary.

关键词： SSC Estimation of suspended sediment concentration in the Pearl River estuary from Landsat TM data

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Variations of Latent Heat Flux During Tropical Cyclones over...

2009年海峡两岸气象科学技术研讨会

作者： Weibiao LI~(1*),Shumin CHEN~1,Youyu LU~2,and dongxiao wang~3 2.Bedford institute of Oceanography,Department of Fisheries and Oceans,Dartmouth,Nova Scotia,B2Y 4A2,Canada 3.LED,south china sea institute of oceanology,chinese academy of sciences,guangzhou 510301,china)

＜正＞Latent heat flux（LHF） exchanges at the air -sea interface play important roles in the formation and development of tropical cyclones（TCs）.Usually,the LHF transferred from oceans to atmosphere increases during the intensification stages of the ***,through analyzing a number of TC cases over the south china sea,it is found that the changes of LHF exhibit a distinct behavior during the intensification stage of the TCs,depending upon their traveling *** air -sea LHF increases while the TCs are intensifying in open sea areas of the south china sea;and decreases while the TCs are travelling over the narrow area between the Indo -china Peninsula and Hainan Island,even though the TCs are in their intensification *** the later case,the decrease in LHF is accompanied by the decrease in surface winds due to the terrain frictions even though the troposphere winds are still increasing.

关键词： Tropical cyclone south china sea latent heat flux

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北部湾近海结构物污损生物研究

海洋学报 2000年第4期22卷 137-146页

作者：严涛严文侠董钰王华接严岩中国科学院南海海洋研究所广州510301

1引言对海洋结构物而言，污损生物不仅增加其水下部位表面粗糙度，显著增大波浪所引起的动力载荷效应［’」，而且还能改变金属腐蚀过程，引起局部腐蚀或穿孔腐蚀，并妨碍水下检测、保养和维修等工作的进行［‘，’］．因此，在开发利... 详细信息

1引言对海洋结构物而言，污损生物不仅增加其水下部位表面粗糙度，显著增大波浪所引起的动力载荷效应［’」，而且还能改变金属腐蚀过程，引起局部腐蚀或穿孔腐蚀，并妨碍水下检测、保养和维修等工作的进行［‘，’］．因此，在开发利用海洋资源时，必须预先对特定海区污损生物群落的结构特点及发展趋势有所了解，以便人们经济、有效的角度选择防污手段和制定清除保养计划．在北部湾海区，多年来污损生物的研究均着重于近岸水域，近来虽有一些远岸海域生物污损状况的报道，但因这些工作主要通过市设浮标挂板调查卜」或直接检测在某一水域作业的现成浮标卜］，所取得的生物参数不仅在时间和空间上具有很大的局限性，而且作为附着基的人工物体始终处

关键词：南海北部湾污损生物近海结构物

Exploring the Mechanism,Advancements,and Application of Thermogalvanic Effect in Hydrogels

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chinese Journal of Chemistry 2024年第5期42卷 543-556页

作者： Xiaoyu Yang Peng wang Xiaolong Wu Yongli Liao Senyun liu Wei Duan Ying Yue School of Energy Power and Mechanical EngineeringNorth China Electric Power UniversityBaodingHebei071000 China Hebei Key Laboratory of Electric Machinery Health Maintenance & Failure Prevention North China Electric Power UniversityBaodingHebei071003 China Electric Power Research institute China South Power GridGuangzhouGuangdong510000 China Key Laboratory of Icing and Anti/De-icing China Aerodynamics Research and Development CenterMianyangSichuan621000 China

The issue of energy consumption has garnered significant interest due to its excessive ***,thermoelectric devices have been getting increased attention,as they can harness waste heat from various sources,such as solar radiation,human body,and industrial ***,the recovery of low-grade heat has been a challenge,resulting in unsustainable energy use and significant *** considerable advances have been made in thermoelectric materials in recent decades,the majority of these devices still primarily employ ***,the emergence of quasi-solid-state thermoelectric materials represents a novel development with profound promise for the environment and *** materials offer several advantages,such as improved energy conversion capacities,cost-effectiveness,versatility,and scalability,to support increased ***,this review explores the application of thermoelectric materials in self-powered sensors,integrated modules,and heat harvesting ***,the potential of high-performance thermocouples based on thermogalvanic effects is assessed,along with the challenges that must be overcome to realize this goal.

关键词： Hydrogel Thermogalvanic effect Thermochemistry Electrolytes Flexible electronics

Astronomical influence of the development of Paleogene thin coal seam groups in offshore Lacustrine basins:A case study of the ZhuⅠDepression's Enping Formation located in the northern south china sea

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Acta Oceanologica Sinica 2024年第4期43卷 136-150页

作者： Yan liu Shengbing Huang Dongdong wang Nan Li Yuting Yin Ying Chen Zengxue Li College of Earth Science and Engineering Shandong University of Science and TechnologyQingdao 266590China CNOOC Research institute Co. Ltd.Beijing 100028China School of Geography Earth and Environmental SciencesUniversity of BirminghamBirmingham B152TTUK

The development of the Paleogene coal seams in china's offshore basin areas generally had the characteristics of coal measures with large thicknesses,large numbers of coal seams,thin single coal seams,poor stability,scattered vertical distribution,and a wide distribution *** study selected the Enping Formation of the ZhuⅠDepression in the northern section of the south china sea as an example to determine the macro-control factors of the development of the Paleogene coal seam *** analysis was carried out on the influencing effects and patterns of the astronomical cycles related to the development of the thin coal seam groups in the region.A floating astronomical time scale of the Enping Formation was established,and the sedimentary time limit of the Enping Formation was determined to be approximately 6.15 Ma±.In addition,the cyclostratigraphy analysis results of the natural gamma-ray data of Well XJ in the Enping Formation of the Xijiang Sag revealed that the development of the thin coal seams had probably been affected by short eccentricity and precession *** formation process of coal seams was determined to have been affected by high seasonal contrast,precipitation,and *** the periods with high values of short eccentricity,the seasonal contrasts tended to be *** those periods,fluctuations in the precession controls resulted in periodic volume changes in precipitation and insolation of the region,resulting in the development of thin coal *** was also found that the periods with low precession were the most conducive to coal seam *** that basis,combined with such factors as sedimentary environmental conditions conducive to the development of thin coal seam groups,this study established a theoretical model of the comprehensive influences of short eccentricity and precession on the development and distribution of Paleogene thin coal seam groups in offshore lacustrine *** patterns of the Paleogene astrono

关键词： Paleogene Pearl(Zhujiang)River Mouth Basin coal seam development astronomical cycles

southeastern extension of the Red River fault zone (RRFZ) and its tectonic evolution significance in western south china sea

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Science china Earth sciences 2006年第8期49卷 839-850页

作者： liu Baoming1,2,3, XIA Bin1, LI Xuxuan1,3, ZHANG Minqiang1,3, NIU Binhua2, ZHONG Lifeng1, JIN Qinghuan1,4 & JI Shaocheng1,5 1. Key Laboratory of Marginal sea Geology and Resources, chinese academy of sciences,guangzhou 510640, china 2. china University of Geosciences (Beijing), Beijing 100083, china 3. Research Center of Science & Technology Department, CNOOC, Beijing 100027, china 4. guangzhou Marine Geological Survey, Ministry of Land & Resources, guangzhou 510075, china 5. Ecole Polytechnique Montreal, H3C3A7, Canada Key Laboratory of Marginal sea Geology and Resources Chinese Academy of Sciences Guangzhou China china University of Geosciences (Beijing) Beijing China Research Center of Science & Technology Department CNOOC Beijing China guangzhou Marine Geological Survey Ministry of Land & Resources Guangzhou China Ecole Polytechnique Montreal Canada

Recent geophysical surveys and basin modeling suggest that the No.1 fault in the Ying- gehai basin (YGHB) is the seaward elongation of the Red River fault zone (RRFZ) in the south china sea (SCS). The RRFZ, which separates the south china and Indochina block, extends first along the Yuedong fault, offshore of Vietnam, and then continues southward and breaks off into two branches: the Lupar fault and the Tinjia fault. The southern extension of the Lupar fault dies out beneath the NW Borneo while the Tinjia fault extends southeast and reaches the Brunei-Sabah area. According to the gravity and geomagnetic data, and the tectonic evolution of the basins, there are different evolution histories between the Wan’an basin (WAB) and the basins in the Nansha block. The Tinjia fault may be the boundary between the Balingian block and the Nansha block. Hence, the line linking the Yue- dong fault and the Tinjia fault, which both are continental margin faults and strike-slip ones in the geological evolution histories, constitute the boundary between the Indochina and Nansha block. The Lupar fault, in contrast, is an intraplate fault within the Indochina block. The results provide new hints for reconstructing the tectonic evolution history of the RRFZ and the opening of the SCS, and also a framework for hydrocarbon prospecting in the region.

关键词： Red River fault zone, tectonic evolution, fault, extension, western south china sea.