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Paleoenvironmental reconstruction and organic matter accumulation of the paleogene shahejie oil shale in the Zhanhua Sag, Bohai Bay Basin, Eastern China

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Petroleum Science 2024年第3期21卷 1552-1568页

作者： Xiao-lin Wang Xiao-Min Zhu jin Lai Xing-Yue lin Xiang Wang Yu-Shan Du Chao Huang Yu-Rui Zhu State Key Laboratory of Petroleum Resources and Engineering China University of Petroleum (Beijing) College of Geosciences China University of Petroleum (Beijing) Shengli Oilfield SINOPEC

The controlling factors of organic-rich shale accumulation is essential for the exploration and development of shale oil and gas resources. The sedimentary environment plays a vital role in the formation of organic-rich sediments in lacustrine facies. This article unravels the mineralogy, geochemistry, and paleoenvironmental evolution during the deposition of the Paleogene Shahejie Formation(Es3L). It discusses the effects of paleoclimate, paleosalinity, paleoredox conditions, paleowater depth, and paleoproductivity on organic matter(OM) enrichment. Finally, the OM enrichment model was established. The results show that the mineralogical compositions are mainly composed of calcite(avg. 40.13%), quartz(avg. 21.64%) and clay minerals(avg. 24.07%), accompanied by dolomite(avg. 7.07%), feldspar(avg. 6.36%)and pyrite(avg. 2.95%). The Es3Lshale has a high abundance of OM, with total organic carbon(TOC)ranging from 1.07% to 5.12%. The organic matter type is mainly composed of type I-II1kerogen, which is generally considered a good-quality source rock. The source of OM is a mixture of lower bacteria, algae,and plants. During the early sedimentary period, the paleoclimate was dry and cold, with high salinity,intense reducibility, and relatively low productivity. During the late sedimentary period, the climate became warmer and more humid. As a result, the salinity decreased to a level that was suitable for biological reproduction, and productivity increased gradually due to the input of terrigenous *** and paleoclimate determined the environment of the sedimentary period, in addition,paleoproductivity and paleoredox condition indicated the formation and preservation conditions of *** warm and humid climate, brackish water, suitable reduction conditions and high productivity are the favorable conditions for the generation and preservation of organic matter. The research results may have implications for the genetic mechanisms of organic matter accumulation

关键词： Elemental geochemical Paleoenvironment Organic matter accumulation Paleogene shahejie formation Zhanhua Sag Bohai Bay Basin

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New mechanistic insights into phosphate-starvation-regulated plant architecture change and nutrient uptake

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Molecular Plant 2024年第1期17卷 19-21页

作者： Hong Lu Rongbin lin Meiju Deng Kangming jin Chuanzao Mao State Key Laboratory of Plant Environmental Resilience College of Life SciencesZhejiang UniversityHangzhou 310058China Hainan Institute of Zhejiang University Yazhou Bay Science and Technology CityYazhou DistrictSanyaHainan 572025China

Phosphorus(P)is an indispensable macro-nutrient for plant growth that is absorbed by plants in the form of inorganic phosphate(Pi).Pi deficiency is a major challenge limiting crop productivity *** combat Pi scarcity and maintain Pi homeostasis,plants have evolved different strategies for efficient Pi acquisition(Paz-Ares et al.,2022).Plants reduce overall growth and enhance the root system to optimize nutrients foraging in Pi-limited ***(SLs).

关键词： plant maintain inorganic

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Dynamic manipulation of multimodal emission in Er^(3+)-activated non-core-shell structure for optical thermometry and information security

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Rare Metals 2024年第4期43卷 1702-1712页

作者： Xuan Liu Zi-Xia lin Yin-Biao shi Xiao-Yan Wang Ming-Ye Ding Xiao-Fei Yang College of Science Nanjing Forestry UniversityNanjing210037China Testing Center Yangzhou UniversityYangzhou225009China

Regulating luminescent dynamics of lanthanide-based luminescent materials via external stimuli is of great significance in the fields of optical thermometry and high-level ***,it is still a huge challenge to realize multimodal emissions with tunable color outputs from a single activator in simple structures via smart dynamic control of photon transition ***,we present a mechanistic strategy to achieve multimodal luminescence of Er^(3+)activators with color-switchable outputs in a non-core-shell *** the control of excitation dynamics(λ_(ex)=980,808,1532,377 nm),the population among the intermediate en ergy levels of Er^(3+)and the interaction between Er^(3+)and Yb^(3+)could be precisely modulated through energy transfer and migration processes,leading to the generation of colortunable multimodal luminescence upon diverse excitation modes(non-steady-state,single-/dual-wavelength steady,thermal activation).Inspired by its special luminescent performance,the as-obtained material exhibits great potential in noncontact thermometry,multimodal anticounterfeiting,and high-capacity information encryption by performing a series of proof-of-concept *** findings might provide a conceptual model to modulate the luminescent dynamics in a simple-structured system for the generation of color-adjustable multimodal emissions,which is convenient for the development of advanced luminescent materials toward versatile cuttingedge applications.

关键词： Lanthanide ions Multimodal emission Upconversion Downshifting Anti-counterfeiting Luminescent thermometry

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Polysaccharide of Alocasia cucullata Exerts Antitumor Effect by Regulating Bcl-2, Caspase-3 and ERK1/2 Expressions during Long-Time Administration

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Chinese Journal of Integrative Medicine 2024年第1期30卷 52-61页

作者： ZHOU Qi-chun XIAO shi-lin lin Ru-kun LI Chan CHEN Zhi-jie CHEN Yi-fei LUO Chao-hua MO Zhi-xian lin Ying-bo School of Traditional Chinese Medicine Southern Medical UniversityGuangzhou(510515)China Clinical and Basic Research Team of TCM Prevention and Treatment of Non-Small Cell Lung Cancer the Second Clinical College of Guangzhou University of Chinese MedicineGuangzhou(510120)China Department of Chinese Medicine Zhujiang Hospital Affiliated to Southern Medical UniversityGuangzhou(510282)China Department of Pharmacy Jiangmen Central HospitalJiangmen(529000)China

Objective: To study the in vitro and in vivo antitumor effects of the polysaccharide of Alocasia cucullata(PAC) and the underlying mechanism. Methods: B16F10 and 4T1 cells were cultured with PAC of 40 μg/m L, and PAC was withdrawn after 40 days of administration. The cell viability was detected by cell counting kit-8. The expression of Bcl-2 and Caspase-3 proteins were detected by Western blot and the expressions of ERK1/2 mRNA were detected by quantitative real-time polymerase chain reaction(qRT-PCR). A mouse melanoma model was established to study the effect of PAC during long-time administration. Mice were divided into 3 treatment groups: control group treated with normal saline, positive control group(LNT group) treated with lentinan at 100 mg/(kg·d), and PAC group treated with PAC at 120 mg/(kg·d). The pathological changes of tumor tissues were observed by hematoxylin-eosin staining. The cell apoptosis of tumor tissues was detected by TUNEL staining. Bcl-2 and Caspase-3 protein expressions were detected by immunohistochemistry, and the expressions of ERK1/2, JNK1 and p38 mRNA were detected by qRT-PCR. Results: In vitro, no strong inhibitory effects of PAC were found in various tumor cells after 48 or 72 h of administration. Interestingly however, after 40 days of cultivation under PAC, an inhibitory effect on B16F10 cells was found. Correspondingly, the long-time administration of PAC led to downregulation of Bcl-2 protein(P <0.05), up-regulation of Caspase-3 protein(P<0.05) and ERK1 mRNA(P<0.05) in B16F10 cells. The above results were verified by in vivo experiments. In addition, viability of B16F10 cells under long-time administration culture in vitro decreased after drug withdrawal, and similar results were also observed in 4T1 cells. Conclusions: Long-time administration of PAC can significantly inhibit viability and promote apoptosis of tumor cells, and had obvious antitumor effect in tumor-bearing mice.

关键词： polysaccharide of Alocasia cucullata tumor cells Bcl-2 Caspase-3 ERK1/2 Chinese medicine

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Effect of Guanxin Danshen Dripping Pills on Coronary Heart Disease Comorbid with Depression or Anxiety: The ADECODE-Real World Study

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Chinese Journal of Integrative Medicine 2024年第5期30卷 443-448页

作者： WU shi-hao shi Wei-qi LI Yu-hang LIU Ru-hui HU Da-yi ZHENG Li-qiang MA Wen-lin Department of Geriatric Medicine Tongji HospitalSchool of MedicineTongji UniversityShanghai 200065China Department of Cardiology Tongji HospitalSchool of MedicineTongji UniversityShanghai 200065China Department of Cardiology Peking University People's HospitalBeijing 100044China School of Public Health Shanghai Jiao Tong UniversityShanghai 200030China

Objective: To evaluate the efficacy of Guanxin Danshen Dripping Pill(GXDSDP) in treating anxiety and depression in patients with coronary heart disease(CHD). Methods: A total of 1,428 patients diagnosed with CHD screened for anxiety, depression, and quality of life(QOL) at baseline received 0.4 g of GXDSDP treatment 3 times per day and returned for monthly reassessment. Patients were recruited after stable treatment for CHD and received assessment of General Anxiety Disorder-7(GAD-7), Patient Health Questionnaire-9(PHQ-9), and Seattle Angina Questionnaire(SAQ) for evaluating anxiety, depression, and *** were followed up 3 times, once every 4 weeks, during outpatient visits for 12 weeks. Results: At the third follow-up(F3), the anxiety symptom of 63.79%(673/1,055) of the patients improved to sub-clinical level, and the GAD-7 score improved significantly(8.11 vs. 3.87, Plinical level, with a significant improvement in PHQ-9 score(8.69 vs. 4.41, Pline(all P<0.01) as assessed by SAQ: physical limitation(31.17 vs. 34.14), anginal stability(2.74 vs. 4.14), anginal frequency(8.16vs. 9.10), treatment satisfaction(13.43 vs. 16.29), and disease perception(8.69 vs. 11.02). Conclusions: A fixed dosage of GXDSDP may be a potential treatment option for CHD patients comorbid with anxiety or depression.(Registration No. ChiCTR2100051523)

关键词： Guanxin Danshen Dripping Pill coronary heart disease depression anxiety quality of life Chinese medicine

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Tunable magneto-Seebeck effect in Co_(2)FeSi/MgO/Co_(2)FeSi heterostructure via optimized interfacial engineering

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Science China(Physics,Mechanics & Astronomy) 2024年第3期67卷 128-135页

作者： jingyu Li Xianbiao shi Yurong jin Le Ma Liuming Wei Chi Zhang Hang Li Peng-Fei Liu International Joint Research Laboratory of New Energy Materials and Devices of Henan Province School of Physics and ElectronicsHenan UniversityKaifeng 475004China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Spallation Neutron Source Science Center Dongguan 523803China Defence Industry Secrecy Examination and Certification Center Beijing 100089China School of Materials Science and Engineering Nanjing University of Science and TechnologyNanjing 210094China Department of Network Security Henan Police CollegeZhengzhou 450046China College of Electrical Engineering Henan University of TechnologyZhengzhou 450001China

Enhancing the tunneling magneto-Seebeck(TMS) ratio and uncovering its underlying mechanism are greatly demanded in spin *** magnitude and sign of the TMS effect depend on the type of atom and the stacking order of atoms at the ***,we demonstrate that TMS ratios can be effectively manipulated by altering heterogonous or homogeneous interface through decoration on the CoFeSi(001) surface inserted on the MgO insulating *** maximum TMS ratio of pure Co_(2)/O termination is 4565% at 800 ***,the TMS ratio of the FeSi/O termination has two peak values,of which the maximum could reach up to-3290% at 650 *** comparing two different atom arrangements at the interface,we reveal that the sign and symbol of the TMS ratio can be controlled by the temperature and different atomic configurations at the Co_(2)FeSi/MgO ***,the spin-Seebeck coefficient up to ~150 μV/K is also possible when we select suitable terminations and *** findings will provide useful insights into how to control the sign and symbol of the TMS ratio and accordingly stimulate the development field of magneto-thermoelectric power and spin caloritronic devices based on the magneto-Seebeck effect in Heusler-based metallic multilayers.

关键词： magneto-Seebeck effect interface spintronics electronic structure spin-Seebeck effect

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Distributed Cooperative Anti-Disturbance Control for High-Order MIMO Nonlinear Multi-Agent Systems

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Journal of Shanghai Jiaotong university(Science) 2024年第4期29卷 656-666页

作者： jin Feiyu CHEN Longsheng LI Tongshuai shi Tongxin School of Aircraft Engineering Nanchang Hangkong UniversityNanchang330063China

To solve the synchronization and tracking problems,a cooperative control scheme is proposed for a class of higher-order multi-input and multi-output(MIMO)nonlinear multi-agent systems(MASs)subjected to uncertainties and external ***,coupled relationships among Laplace matrix,leader-following adjacency matrix and consensus error are analyzed based on undirected ***,nonlinear disturbance observers(NDOs)are designed to estimate compounded disturbances in MASs,and a distributed cooperative anti-disturbance control protocol is proposed for high-order MIMO nonlinear MASs based on the outputs of NDOs and dynamic surface control ***,the feasibility and effectiveness of the proposed scheme are proven based on Lyapunov stability theory and simulation experiments.

关键词： nonlinear disturbance observer(NDO) higher-order multi-input and multi-output(MIMO)system multi-agent system cooperative control disturbance suppression

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Fundamental Understanding of Hydrogen Evolution Reaction on Zinc Anode Surface:A First‑Principles Study

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Nano-Micro Letters 2024年第6期16卷 180-191页

作者： Xiaoyu Liu Yiming Guo Fanghua Ning Yuyu Liu Siqi shi Qian Li Jiujun Zhang shigang Lu jin Yi Institute for Sustainable Energy&Department of Chemistry Shanghai UniversityShanghai 200444People’s Republic of China School of Materials Science and Engineering Shanghai UniversityShanghai 200444People’s Republic of China College of Materials Science and Engineering National Engineering Research Center for Magnesium AlloysChongqing UniversityChongqing 400044People’s Republic of China

Hydrogen evolution reaction(HER)has become a key factor affecting the cycling stability of aqueous Zn-ion batteries,while the corresponding fundamental issues involving HER are still ***,the reaction mechanisms of HER on various crystalline surfaces have been investigated by first-principle calculations based on density functional *** is found that the Volmer step is the ratelimiting step of HER on the Zn(002)and(100)surfaces,while,the reaction rates of HER on the Zn(101),(102)and(103)surfaces are determined by the Tafel ***,the correlation between HER activity and the generalized coordination number(CN)of Zn at the surfaces has been *** relatively weaker HER activity on Zn(002)surface can be attributed to the higher CN of surface Zn *** atomically uneven Zn(002)surface shows significantly higher HER activity than the flat Zn(002)surface as the CN of the surface Zn atom is *** CN of surface Zn atom is proposed as a key descriptor of HER *** the CN of surface Zn atom would be a vital strategy to inhibit HER on the Zn anode surface based on the presented theoretical ***,this work provides a theoretical basis for the in-depth understanding of HER on the Zn surface.

关键词： Aqueous Zn-ion battery Zn anode Hydrogen evolution reaction Coordination number First-principles calculation

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Recent development of three-dimension printed graphene oxide and MXene-based energy storage devices

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Tungsten 2024年第1期6卷 196-211页

作者： Liang-Hao Yu Xin Tao Shang-Ru Feng jin-Tao Liu lin-lin Zhang Guang-Zhen Zhao Guang Zhu Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes Suzhou UniversitySuzhou 234000China Key Laboratory of Leather of Zhejiang Province College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China

The research for three-dimension(3D)printing carbon and carbide energy storage devices has attracted widespread exploration *** designable in structure and materials,graphene oxide(GO)and MXene accompanied with a direct ink writing exhibit a promising prospect for constructing high areal and volume energy density *** review not only summarizes the recent advances in 3D printing energy storage devices including printing methods,ink rheological properties,and different energy storage systems,but also discusses the printing methods related to energy *** addition,the binder or additive free of two-dimensional carbide materials is quite important for the present electrochemical energy storage devices,which also are presented.

关键词： 3D printing Two-dimensional materials Energy storage device Ink theological MXene

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Privacy-Preserving Federated Mobility Prediction with Compound Data and Model Perturbation Mechanism

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China Communications 2024年第3期21卷 160-173页

作者： Long Qingyue Wang Huandong Chen Huiming jin Depeng Zhu lin Yu Li Li Yong Beijing National Research Center for Information Science and Technology(BNRist) Department of Electronic EngineeringTsinghua UniversityBeijing 100084China China Mobile Research Beijing 100032China

Human mobility prediction is important for many ***,training an accurate mobility prediction model requires a large scale of human trajectories,where privacy issues become an important *** rising federated learning provides us with a promising solution to this problem,which enables mobile devices to collaboratively learn a shared prediction model while keeping all the training data on the device,decoupling the ability to do machine learning from the need to store the data in the ***,existing federated learningbased methods either do not provide privacy guarantees or have vulnerability in terms of privacy *** this paper,we combine the techniques of data perturbation and model perturbation mechanisms and propose a privacy-preserving mobility prediction algorithm,where we add noise to the transmitted model and the raw data collaboratively to protect user privacy and keep the mobility prediction *** experimental results show that our proposed method significantly outperforms the existing stateof-the-art mobility prediction method in terms of defensive performance against practical attacks while having comparable mobility prediction performance,demonstrating its effectiveness.

关键词： federated learning mobility prediction privacy

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