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New model of linkage evolution for the transtensional fault systems in the Nanpu Sag of Bohai Bay Basin: Insight from seismic interpretation and analogue modelling

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Petroleum Sc.ence 2024年第4期21卷 2287-2310页

作者： Yu-Heng Wang Fu-sheng Yu Bao-Yin Zhao Ling-Jian Meng college of Geosc.ences China University of Petroleum (Beijing) State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum (Beijing) Jidong Oilfield company PetroChina Limited Company

The evolution of faults within the same stress field is frequently influenced by numerous factors,involving the reactivation of pre-existing structures, stress transmission through ductile detachment layers, and the growth, interaction, as well as linkage of new fault segments. This study analyses a complex multi-phase oblique extension fault system in the Nanpu Sag(NPS) of the Bohai Bay Basin(BBB),china. High-resolution three-dimensional(3D) seismic data and analogue modelling indicate that the oblique extensional reactivation of pre-existing structures governs the sequential arrangement of fault segments in the caprock, and they dip synthetically to the reactivated fault at depth. During the NW-SE extension in the Eocene, the predominant movement of the pre-existing fault is strike-slip. Subsequently,during the N-S extension since the Oligocene, inclined at *** the pre-existing fault, forming splay fault segments and ultimately creating large en-echelon arcuate faults linked by relay ramps. Using fault throw-distance(T-D) and laser scanning, we reconstructed the fault evolution model of oblique extension reactivation in the presence of a ductile detachment basement. Our study illustrates that the arcuate faults can be categorized into linear master fault segments controlled by pre-existing structures, bending splay faults in the termination zone, and normal fault segments responding to the regional stress *** interaction between faults occurs among normal faults and strike-slip faults, and the kinematic unification of the two fault systems is accomplished in the intersection zone. As the faults continue to evolve, the new fault segments tend to relinquish the control of pre-existing structures and concentrate more on the development of planar and continuous major faults. The ductile detachment layer significantly contributes to the uniform distribution of strain, resulting in narrow shear zones and discontinuous normal faults in its absence.

关键词： Analogue modelling Transtensional deformation Fault linkage Fault intersection zone Nanpu Sag of Bohai Bay basin

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Accelerating H^(*)desorption of hollow Mo_(2)c nanoreactor via in-situ grown carbon dots for electrocatalytic hydrogen evolution

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Journal of energy chemistry 2024年第9期96卷 464-471页

作者： Mengmeng Liu Yuanyuan Jiang Zhuwei cao Lulu Liu Hong c.en sheng Ye School of Materials and chemistry Anhui Agricultural UniversityHefei 230036AnhuiChina

Molybdenum carbide(Mo_(2)c)is a promising non-noble metal electrocatalyst with electronic structures similar to Pt for hydrogen evolution reaction(HER).However,strong H^(*)adsorption at the Mo sites hinders the improvement of HER ***,we synthesized monodisperse hollow Mo_(2)c nanoreactors,in which the carbon dots(cD)were in situ formed onto the surface of Mo_(2)c through carburization *** to finite element simulation and analysis,the cD@Mo_(2)c possesses better mesoscale diffusion properties than Mo_(2)c *** optimized cD@Mo_(2)c nanoreactor demonstrates superior HER performance in alkaline electrolyte with a low overpotential of 57 mV at 10 mA cm^(−2),which is better than most Mo_(2)c-based ***,cD@Mo_(2)c exhibits excellent electrochemical stability during 240 h,confirmed by operando Raman and X-ray diffraction(XRD).Density functional theory(DFT)calculations show that carbon dots cause the d-band center of cD@Mo_(2)c to shift away from Fermi level,promoting water dissociation and the desorption of H^(*).This study provides a reasonable strategy towards high-activity Mo-based HER eletrocatalysts by modulating the strength of Mo–H bonds.

关键词： Mo_(2)c nanoreactor carbon dots H^(*)desorption Electrocatalytic hydrogen evolution

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具有全球竞争力的开放创新生态建设

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科学学研究 2024年第9期42卷 1979-1987页

作者：操友根任声策杜梅安徽大学商学院安徽合肥230601 同济大学上海国际知识产权学院上海200092

百年未有之大变局下,科技革命加速演进,逆全球化主义回潮,局部冲突与动荡频发,新冠疫情叠加冲击,全球创新生态开放面临重大挑战。基于对开放式创新生态概念、结构、理论基础与实践挑战的系统回顾,以集成电路产业为研究对象,厘清其全球... 详细信息

百年未有之大变局下,科技革命加速演进,逆全球化主义回潮,局部冲突与动荡频发,新冠疫情叠加冲击,全球创新生态开放面临重大挑战。基于对开放式创新生态概念、结构、理论基础与实践挑战的系统回顾,以集成电路产业为研究对象,厘清其全球竞争态势与创新布局,并聚焦欧盟与美国两大芯片法案,分析其出台动机和关键内容;同时,进一步围绕构成主体、构建要素及开放性对其深入解读,研判全球创新生态开放的趋势,明晰其发展困境,最后提出促进中国构建具有全球竞争力的开放创新生态的对策建议。

关键词：创新全球化开放创新生态全球竞争力芯片法案

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Reduced magma generation and its implications for the Pulang giant porphyry cu-polymetallic deposit in Northwest Yunnan,china

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Acta Geochimica 2024年第4期43卷 802-813页

作者： Jingwei Guan Tao ren Lei Wang Shenjin Guan Lianrong Wu Baosheng Shi Faculty of Land Resources engineering Kunming University of Science and TechnologyKunming 650093People’s Republic of China Diqing Nonferrous Metals co. LtdShangri-La 674400People’s Republic of China

The Pulang giant porphyry cu-Mo polymetallic deposit is located in the Zhongdian area in the center of the Sanjiang Tethys tectonic domain,which was formed by the westward subduction of the Garze-Litang oceanic slab beneath the Zhongza ***-pyrrhotite-pyritemolybdenite occurs as disseminations,veins,veinlets,and stockworks distributed in the K-silicate alteration zone in the monzonite porphyry,which is superimposed by *** chemical compositions of biotite and amphibole analyzed by electron probe microanalysis(EPMA)indicate that the ore-forming magma and exsolved fluids experienced a continuous decrease in the oxygen fugacity(fO_(2)).Primary amphibolite and biotite(type I)crystallized at relatively high temperatures(744-827°c)and low fO_(2)(log fO_(2)=−12.26 to−11.91)during the magmatic *** fluids exsolved from the magma have a relatively lower temperature(621-711°c)and fO_(2)(log fO_(2)=−14.36 to−13.32)than the original *** addition,the presence of a high abundance of pyrrhotite and an insuffic.ency of primary magnetite and sulfate in the ore(i.e.,anhydrite and gypsum)indicate that the deposit may be a reduced porphyry *** and fluid fO_(2)results,combined with previous research on magmatic fO_(2)at the Pulang deposit,indicate that the magma associated with the reduced Pulang ore assemblages was initially generated as a highly oxidized magma that was subsequently reduced by sedimentary rocks of the Tumugou Formation.

关键词： Porphyry deposit Oxygen fugacity(fO_(2)) contamination of surrounding rock Pulang Zhongdian arc

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engineering g-c_(3)N_(4)based materials for advanced photocatalysis:Recent advances

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Green energy & environment 2024年第2期9卷 166-197页

作者： Xin-Lian Song Lei c.en Li-Jiao Gao Jin-Tao ren Zhong-Yong Yuan National Institute for Advanced Materials School of Materials Science and EngineeringSmart Sensing Interdisciplinary Science CenterNankai UniversityTianjin300350China Key Laboratory of Advanced energy Materials chemistry(Ministry of Education) Nankai UniversityTianjin300071China

Photocatalysis driven by abundant yet intermittent solar energy has considerable potential in renewable energy generation and environmental *** outstanding electronic structure and physicochemical properties of graphitic carbon nitride(g-c_(3)N_(4)),together with unique metal-free characteristic,make them ideal candidates for advanced photocatalysts *** review summarizes the up-to-date advances on g-c_(3)N_(4)based photocatalysts from ingenious-design strategies and diversified photocatalytic ***,the advantages,fabrication methods and limitations of each design strategy are systemically *** order to deeply comprehend the inner connection of theory–structure–performance upon g-c_(3)N_(4)based photocatalysts,structure/composition designs,corresponding photocatalytic activities and reaction mechanisms are jointly discussed,associated with introducing their photocatalytic applications toward water splitting,carbon dioxide/nitrogen reduction and pollutants degradation,***,the current challenges and future perspectives for g-c_(3)N_(4)based materials for photocatalysis are briefly *** design strategies and limitations are also instructive for constructing g-c_(3)N_(4) based materials in other energy and environment-related applications.

关键词： Graphitic carbon nitride g-c_(3)N_(4) Design strategies Photocatalysis Photocatalysts Reaction mechanism

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Effects of enclosure on Grassland Ecological and Economic Benefits in Northern china

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chinese Geographical Sc.ence 2024年第1期34卷 67-78页

作者： HU Bo Wen Qingke XI Fengjiang LI Mengyao WANG Libing ren Yuejuan Aerospace Information Research Institute Chinese Academy of SciencesBeijing100094China University of chinese Academy of Sc.ences Beijing100049China Inner Mongolia Remote Sensing center co. Ltd.Huhhot010000China Xilinhot the Maodeng pasture Xilinhot026000China china University of Mining and Technology Xuzhou221116China Shanxi Provincial Key Lab of Resources Environment and Disaster MonitoringCoal Geological Geophysical Exploration Surveying&Mapping Institute of Shanxi ProvinceJinzhong030600China

Grasslands in northern china serve the country as both an ecological barrier and a livestock production ***,installing enclosures has been becoming the major grassland restoration measure adopted by many local ***,the effects of restoration on both ecological and production benefits of grassland remain unclear for implemented grassland restoration ***,a representative rangeland in northern china,the Maodeng pasture in Inner Mongolia Autonomous Region was selected as the study area,and remote sensing monitoring analyses were carried out to quantify the ecological benefits and economic benefits from 2015 to *** results showed that:1) in terms of ecological benefits,the grassland area with a grassland coverage rate of more than 60% accounts for 32.3% of the regional area,and 86.4% of its grassland grew significantly better than the same period in2015,showing a significant improvement in grassland *** the average amount of carbon per unit area as the ecological benefit evaluation index,it increased by 27.1% to 32.48Tg c/yr from 2015 to 2021.2) In terms of economic benefits,both theoretical grass production and livestock carrying capacity increased from 2015 to *** to 2015,the theoretical grass production in 2021 increased by 24.8% to 71 900 *** livestock carrying capacity reached 52 100 sheep units in 2021,nearly 11 000 sheep units more than that in *** the study period,multiple economic indicators(on a per capita basis of permanent residents) for the pastoral area of Xilinhot city to which the Maodeng pasture belongs,have grown *** capita total income rose from 29 630 yuan(RMB) in2015 to 62 859 yuan(RMB) in *** on grassland resources to develop the pastoral ecology also broadens the potential economic development ***,the establishment of the reserve and the experiment of implanting an enclosure policy have had a significant and positive impact on Maodeng pasture’s develo

关键词： enclosure grassland ecological benefit economic benefit Maodeng pasture Inner Mongolia northern china

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Optimization of fertilizer performances in long-term garlic cropping soils

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Pedosphere 2024年第3期34卷 577-589页

作者： Tianqi WEI Hongmei ZHOU Huayang HONG Yanyun ren Qin LIU Yanhua SU Institute of Soil Sc.ence Chinese Academy of SciencesNanjing 210008(China) University of chinese Academy of Sc.ences Beijing 100049(China) University of chinese Academy of Sc.ences NanjingNanjing 211135(China) Jining Academy of Agricultural Sc.ences Jining 272100(China) college of Forestry Nanjing Forestry UniversityNanjing 210037(China)

continuous cropping is a common pattern of modern agriculture that takes regional advantages for crop yield *** the progress of mono-cropping continuously supported by intensive fertilizer inputs,such a cropping pattern often undergoes serious problems with low fertilizer use effic.encies and unsustainable crop *** this study,we dealt with a>25-year continuous garlic cropping system as an example for a problem-solving *** garlic cropping soils underwent problems characterized by loss of soil organic matter,dramatic retention of NH_(4)^(+)-N,and excess accumulation of phosphate and potash *** hydroponic simulations,we revealed that the presence of NH_(4)^(+)-N inhibited the root uptake of NO_(3)^(-)-N and K by 68% and 88%,*** the traditionally emphasized importance of K,we observed the negative effect of high K on the growth of garlic *** field experiments demonstrated that P and K applications can be reduced by 60% and 50%,respectively,without loss of *** thus developed a high-performance fertilization strategy by integrating a recomposed NPK fertilizer formulation to reduce unnecessary P and K inputs,a supplementary application of long-lasting c of woody peat to compensate for the soil c loss,and a foliar K approach to strengthen the stomatal function improvement with *** strategy allowed a 15% increase of garlic yield and a seasonal soil c profit of ca.1.8 Mg ha^(-1)even at ca.30% lower fertilizer *** study would be helpful in managing garlic fertilization and developing compound fertilizers,with broader significance for other long-term cropping soils.

关键词： fertilization strategy fertilizer input field validation hydroponic simulation optimized fertilization soil nutrient balance yield profit

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The effic.ency and safety evaluation of hemoglobin hydrolysate as a non-heme iron fortifier

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Food Sc.ence and Human Wellness 2024年第2期13卷 999-1010页

作者： Dejiang Xue Shuai Jiang Miao Zhang Kai Shan renéLametsch chunbao Li Key Laboratory of Meat Processing and Quality control Ministry of EducationKey Laboratory of Meat ProcessingMinistry of Agriculture and Rural AffairsJiangsu Collaborative Innovation Center of Meat ProductionProcessing and Quality ControlCollege of Food Science and TechnologyNanjing Agricultural UniversityNanjing 210095China Department of Food Sc.ence University of CopenhagenFrederiksberg C DK-1958Denmark

Hemoglobin hydrolysate is derived from the enzymatic degradation of *** work aimed to evaluate whether hemoglobin hydrolysate promotes the absorption of non-heme iron and the safety of absorbed iron in mice by analyzing the iron binding content,iron circulation,and liver *** found that hemoglobin hydrolysate promoted the absorption of non-heme iron with high effic.ency in duodenum by spontaneously binding non-heme iron during digestion,and increased hepatic iron content by up-regulating divalent metal transporter 1,zinc transporter 14,but hepatic iron content only increased at 3 *** iron entered the blood through ferroportin without restriction at 3 weeks,and excessive iron entered the liver and then affected the hepatocyte membranes permeability and lipid synthesis through oxidative *** the prolongation of dietary intervention,the up-regulated hepcidin acted on the ferroportin to restrict excess iron from entering the blood,and then the hepatic homeostasis *** addition,hemoglobin hydrolysate enhanced the hepatic antioxidant *** together,hemoglobin hydrolysate has a strong ability to promote the absorption of non-heme iron in vivo,and the absorbed iron is relatively safe due to the regulation of hepcidin.

关键词： Hemoglo bin hydrolysate Non-heme iron Absorption Liver homeostasis Hepcidin

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Phosphine/Benzocyclone-based Neutral Nickel catalysts for Ethylene Polymerization and copolymerization with Polar Monomers

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chinese Journal of Polymer Sc.ence 2024年第2期42卷 202-212,I0007页

作者： Fei Wang Li Pan Vladislav A.Tuskaev Svetlana ch.Gagieva Yue-sheng Li Tianjin Key Lab of composite&Functional Materials School of Material Science and EngineeringTianjin UniversityTianjin300072China Department of chemistry Lomonosov Moscow State UniversityRussian Federation InstitutionLeninskie Gory 1Moscow119991Russian Federation A N Nesmeyanov Institute of Organoelement compounds Russian Academy of SciencesVavilova st.28Moscow119991Russian Federation

The effic.ent copolymerization of olefin with polar monomers using nickel-based catalysts presents a longstanding challenge. In this contribution, three phosphine-benzocyclone ligands and corresponding neutral nickel catalysts(Ni1: Ar = Ph;Ni2: Ar = 2-(c_(6)H_(5))c_(6)H_(4);Ni3: Ar = 2-[2',6'-(Me O)_(2)-c_(6)H3]c_(6)H_(4)) were prepared and applied for the ethylene polymerization and copolymerization with polar monomers without any cocatalyst. The bulky substituent groups in complexes Ni2 and Ni3 contributed to high catalytic activities(up to 7.24×10^(6) and 9.04×10^(6)g·mol Ni^(-1)·h^(-1), respectively), and produced high-molecular-weight polyethylene(Mw up to 545.7 k Da). complex Ni3 exhibited high activities for ethylene polymerization at the level of 10^(6) g·mol Ni^(-1)·h^(-1) across a wide range from 30 ℃ to 120 ℃, exhibiting excellent high temperature tolerance. These nickel complexes were also effectively employed in the copolymerization of ethylene with methyl acrylate, ethyl acrylate, butyl acrylate and lauryl acrylate, producing copolymers with high molecular weights(Mw up to 80.5 k Da) and high polar monomer incorporation(up to 8.2 mol%). Microstructure analyses revealed that the introduction of large sterically hindered substituents facilitated the incorporation of polar functional units into the polymer backbone. This study demonstrates the potential of these nickel-based catalysts for effic.ent copolymerization of olefin with polar monomers.

关键词： Neutral nickel catalyst Ethylene polymerization copolymerization Polar acrylate monomers

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Modulation of d-orbital to realize enriched electronic cobalt sites in cobalt sulfide for enhanced hydrogen evolution in electrocatalytic water/seawater splitting

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Rare Metals 2024年第2期43卷 511-521页

作者： Jian-Peng Sun Yu Zheng Zi-sheng Zhang Xiang-chao Meng Zi-Zhen Li Key Laboratory of Marine chemistry Theory and Technology(Ministry of Education) College of Chemistry and Chemical EngineeringOcean University of ChinaQingdao266100China Shanxi Institute of energy Taiyuan030600China Department of chemical and Biological engineering Faculty of EngineeringUniversity of OttawaOttawaONK1N6 N5Canada

Herein,a novel single-atomic Pt doping and interface-rich coS/co(OH)_(2)(Pt-coS/co(OH)_(2)/c)electrocatalyst has been successfully *** from precise regulation of d-orbital electronic structure modulation on co site,Pt-coS/co(OH)_(2)/c exhibited remarkable HER activity and high stability for hydrogen evolution in splitting both water(73 mV@10 mA·cm^(−2)) and seawater(87 mV@10 mA·cm^(−2)).Notably,atomic Pt doping was introduced into coS/co(OH)_(2),which could produce local unbalanced coulombic force and significantly increased the number of S vacancies,and then expose abundant co ***,co(OH)_(2) in Pt-coS/co(OH)_(2)/c could act as the adsorption sites for H_(2)O in hydrogen evolution reaction *** functional theory results also proved that atomic Pt doping,S vacancies and co(OH)_(2) coupling could result in the formation of enriched electronic co sites and optimize d_(z2) orbital electronic structure,and then realize the depth upward shift of d-band center and enhance the adsorption of H*on co sites.

关键词： Electrocatalysts Hydrogen evolution reaction Pt-coS/co(OH)_(2) d-band center Electronic structure Water/seawater electrolysis

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