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A Tiny Example Based Procedural Model for Real-Time Glinty Appearance Rendering

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Journal of Computer Science & Technology 2024年第4期39卷 771-784页

作者： You-Xin Xing Hao-Wen Tan yan-ning Xu Lu Wang School of Software Shandong UniversityJinan 250101China NetEase(Hangzhou)Network Co. LtdHangzhou 310052China

The glinty details from complex microstructures significantly enhance rendering ***,the previous methods use high-resolution normal maps to define each micro-geometry,which requires huge memory *** paper observes that many self-similarity materials have independent structural characteristics,which we define as tiny example *** propose a procedural model to represent microstructures implicitly by performing spatial transformations and spatial distribution on tiny ***,we precompute normal distribution functions(NDFs)by 4D Gaussians for tiny examples and store them in multi-scale NDF *** with a tiny example based NDF evaluation method,complex glinty surfaces can be rendered simply by texture *** experimental results show that our tiny example based the microstructure rendering method is GPU-friendly,successfully reproducing high-frequency reflection features of different microstructures in real time with low memory and computational overhead.

关键词： real-time rendering reflectance modeling glinty material photorealistic rendering microstructure

Lindqvist-type Polyoxometalates Act as Anti-breast Cancer Drugs via Mitophagy-induced Apoptosis

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Current Medical Science 2024年第4期44卷 809-819页

作者： Chen-guang YAO Zi-jia ZHAO Ting TAN Jiang-ning yan Zhong-wei CHEN Jun-tao XIONG Han-luo LI yan-hong WEI Kang-hong HU Sino-German Biomedical Center Hubei Provincial Key Laboratory of Industrial MicrobiologyCooperative Innovation Center of Industrial Fermentation(Ministry of Education&Hubei Province)Key Laboratory of Fermentation Engineering(Ministry of Education)National“111”Center for Cellular Regulation and Molecular PharmaceuticsHubei University of TechnologyWuhan430068China Center for Evaluation of Hubei Medical Products Administration Wuhan430068China

Objective Lindqvist-type polyoxometalates(POMs)exhibit potential antitumor *** study aimed to examine the effects of Lindqvist-type POMs against breast cancer and the underlying *** Using different cancer cell lines,the present study evaluated the antitumor activities of POM analogues that were modified at the body skeleton based on molybdenum-vanadium-centered negative oxygen ion polycondensations with different side *** colony formation assay,autophagy detection,mitochondrial observation,qRT-PCR,Western blotting,and animal model were used to evaluate the antitumor activities of POMs against breast cancer cells and the related *** MO-4,a Lindqvist-type POM linking a proline at its side strain,was selected for subsequent experiments due to its low half maximal inhibitory concentration in the inhibition of proliferation of breast cancer *** was found that MO-4 induced the apoptosis of multiple types of breast cancer ***,MO-4 activated intracellular mitophagy by elevating mitochondrial reactive oxygen species(ROS)levels and resulting in *** vivo,breast tumor growth and distant metastasis were significantly reduced following MO-4 *** Collectively,the results of the present study demonstrated that the novel Lindqvist-type POM MO-4 may exhibit potential in the treatment of breast cancer.

关键词： antitumor breast cancer polyoxometalate mitochondria mitophagy

Structural regulation of coal-derived hard carbon anode for sodium-ion batteries via pre-oxidation

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Rare Metals 2024年第6期43卷 2585-2596页

作者： Meng-Yuan Su Kai-yang Zhang Edison Huixiang Ang Xue-Li Zhang yan-ning Liu Jia-Lin yang Zhen-Yi Gu Faaz A.Butt Xing-Long Wu Faculty of Chemistry Northeast Normal UniversityChangchun 130024China MOE Key Laboratory for UV Light-Emiting Materials and Technology.Northeast Normal University.Ministry of Education Changchun 130024China Natural Sciences and Science Education National Institute of EducationNanyang Technological UniversitySingapore 637616Singapore Materials Engineering Department NED University of Engineering and TechnologyKarachi 75300Pakistan

Hard carbon(HC)is broadly recognized as an exceptionally prospective candidate for the anodes of sodium-ion batteries(SIBs),but their practical implementation faces substantial limitations linked to precursor factors,such as reduced carbon yield and increased ***,a cost-effective approach is proposed to prepare a coal-derived HC anode with simple pre-oxidation followed by a post-carbonization process which effectively expands the d_(002)layer spacing,generates closed pores and increases defect *** these modifications,the resulting HC anode attains a delicate equilibrium between plateau capacity and sloping capacity,showcasing a remarkable reversible capacity of 306.3 mAh·g^(-1)at 0.03 A·g^(-1).Furthermore,the produ ced HC exhibits fast reaction kinetics and exceptional rate performance,achieving a capacity of 289 mAh·g^(-1)at 0.1 A·g^(-1),equivalent to~94.5%of that at 0.03 A·g^(-1).When implemented in a full cell configuration,the impressive electrochemical performance is evident,with a notable energy density of 410.6 Wh·kg^(-1)(based on cathode mass).In short,we provide a straightforward yet efficient method for regulating coal-derived HC,which is crucial for the widespread use of SIBs anodes.

关键词： Sodium-ion batteries Hard carbon Anode Coal Pre-oxidation

Development of a 2D spatial displacement estimation method for turbulence velocimetry of the gas puff imaging system on EAST

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Plasma Science and Technology 2024年第3期26卷 17-24页

作者：李乐天刘少承颜宁刘晓菊高翔 Anhui University Hefei 230039People's Republic of China Institute of Plasma Physics Chinese Academy of SciencesHefei 230031People's Republic of China

A gas puff imaging(GPI)diagnostic has been developed and operated on EAST since 2012,and the time-delay estimation(TDE)method is used to derive the propagation velocity of fluctuations from the two-dimensional GPI ***,with the TDE method it is difficult to analyze the data with fast transient events,such as edge-localized mode(ELM).Consequently,a method called the spatial displacement estimation(SDE)algorithm is developed to estimate the turbulence velocity with high temporal *** on the SDE algorithm,we make some improvements,including an adaptive median filter and super-resolution *** the development of the algorithm,a straight-line movement and a curved-line movement are used to test the accuracy of the algorithm,and the calculated speed agrees well with preset *** SDE algorithm is applied to the EAST GPI data analysis,and the derived propagation velocity of turbulence is consistent with that from the TDE method,but with much higher temporal resolution.

关键词： gas puff imaging spatial displacement estimation SDE edge turbulence velocity TDE EAST tokamak

Cornus officinalis with high pressure wine steaming enhanced anti-hepatic fibrosis: Possible through SIRT3-AMPK axis

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Journal of Pharmaceutical Analysis 2024年第5期14卷 758-771页

作者： Xin Han yan ning Xinyue Dou Yiwen Wang Qiyuan Shan Kao Shi Zeping Wang Chuan Ding Min Hao Kuilong Wang Mengyun Peng Haodan Kuang Qiao yang Xianan Sang Gang Cao School of Pharmacy Zhejiang Chinese Medical UniversityHangzhou311400China

Cornus officinalis,a medicinal and edible plant known for its liver-nourishing properties,has shown promise in inhibiting the activation of hepatic stellate cells(HSCs),crucial indicators of hepatic fibrosis,especially when processed by high pressure wine steaming(HPWS).Herein,this study aims to investigate the regulatory effects of cornus officinalis,both in its raw and HPWS forms,on inflammation and apoptosis in liver fibrosis and their underlying *** vivo liver fibrosis models were established by subcutaneous injection of CCl4,while in vitro HSCs were exposed to transforming growth factor-b(TGF-b).These findings demonstrated that cornus officinalis with HPWS conspicuously ameliorated histopathological injury,reduced the release of proinflammatory factors,and decreased collagen deposition in CCl4-induced rats compared to its raw *** ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometer(UHPLC-QTOF-MS)combined with network analysis,we identified that the pharmacological effects of the changed components of cornus officinalis before and after HPWS,primarily centered on the adenosine phosphate(AMP)-activated protein kinase(AMPK)*** note,cornus officinalis activated AMPK and sirtuin 3(SIRT3),promoting the apoptosis of activated HSCs through the caspase cascade by regulating caspase3,caspase6 and *** interfering RNA(siRNA)experiments showed that cornus officinalis could regulate AMPK activity and its mediated-apoptosis through *** conclusion,cornus officinalis exhibited the ability to reduce inflammation and apoptosis,with the SIRT3-AMPK signaling pathway identified as a potential mechanism underlying the synergistic effect of cornus officinalis with HPWS on anti-liver fibrosis.

关键词： Liver fibrosis SIRT3 Cornus officinalis AMPK Caspase6

Precise separation and efficient recovery of Pd(Ⅱ) from high-level liquid waste by XAD-based adsorbents

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Rare Metals 2024年第10期43卷 5372-5390页

作者： Hao-Ran Dong Shun-yan ning Zeng-Yuan Li Si-Zhi Xu Feng-Tao Hu Feng Gao You-Bin Wang Li-Feng Chen Xiang-Biao Yin Toyohisa Fujita Mohammed F.Hamza Yue-Zhou Wei School of Resources Environment and MaterialsGuangxi University School of Nuclear Science and Technology University of South China

Efficient separation of palladium (Pd（II）) from high-level liquid waste （HLLW） not only helps the safe disposal of nuclear waste,but also is a vital importan supplement to Pd（II） ***,16 kinds of nove Amberlite XAD resins-based adsorbents were prepared by vacuum impregnation method for the separation of Pd（II）from simulated HLLW,and the MMBT/XAD7HP prepared using 4-methyl-2-mercaptobenzothiazole （MMBT） as ligand and Amberlite XAD7HP resin （XAD7HP） as the carrier was selected as the optimal research *** analysis experiments proved the successful preparation of MMBT/XAD7HP,which exhibited ultrahigh adsorption selectivity for Pd（II）(distribution coefficient （Kd）≥12584.5 ml·g-1,separation factor (SFPd/M)≥2818.4) and superior adsorption capacity(Q≥130.1 mg·g-1).The adsorption kinetics and adsorption isotherms for Pd（II） matched with pseudo-secondorder （PSO） kinetics model and Langmuir model,indicating that the adsorption mode for Pd（II） by MMBT/XAD7 HP was monolayer chemical *** dynamic column experiments showed that MMBT/XAD7 HP achieved efficiently separation of Pd（II） from simulated HLLW,and the recovery rate was nearly 100% The adsorption mechanism was analyzed by Fourier transform infrared spectroscopy （FTIR）,X-ray photoelectron spectroscopy （XPS） and density functional theory（DFT）,and the ultrahigh selectivity of MMBT/XAD7 HP is attributed to the preferred affinity of the soft-N,S donor atoms in MMBT for Pd（II）.MMBT has the shortest frontline molecular orbital energy band gap （HOMO–LUMO） among the four ligands,which makes it easier to become an electron donor to attract Pd2+to participate in ***3-participates in the adsorption to keep charge *** summary,MMBT/XAD7 HP has broad application prospects for the treatment of Pd（II） in HLLW

关键词： Adsorption Column experiments HLLW Palladium XAD

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一类伴有部分解耦干扰的非线性系统故障诊断

控制理论与应用 2024年第2期41卷 240-248页

作者：马广富高升郭延宁中国科学院沈阳自动化研究所机器人学国家重点实验室辽宁沈阳110016 中国科学院机器人与智能制造创新研究院辽宁沈阳110169 哈尔滨工业大学航天学院黑龙江哈尔滨150001

针对Lipschitz非线性系统执行器故障检测和传感器故障估计问题,本文提出了一种基于H_/L_(∞)未知输入观测器的有限频域故障诊断策略.首先,将系统处理成包含传感器故障的增广系统.然后,将该系统的未知输入干扰分为可解耦与不可解耦两部分... 详细信息

针对Lipschitz非线性系统执行器故障检测和传感器故障估计问题,本文提出了一种基于H_/L_(∞)未知输入观测器的有限频域故障诊断策略.首先,将系统处理成包含传感器故障的增广系统.然后,将该系统的未知输入干扰分为可解耦与不可解耦两部分.针对可解耦部分,利用观测器匹配条件将其从估计误差中消除.针对不可解耦部分,设计L_(∞)指标抑制其对残差的影响并结合有限频域H_指标提高执行器故障检测灵敏度.接着,给出观测器存在的充分条件并将其转化为受LMIs约束的线性优化问题,实现了执行器故障的鲁棒检测及传感器故障的鲁棒估计.最后,结合仿真算例验证了所提方法的正确性与有效性.

关键词：故障检测故障估计 H_指标 L_(∞)指标有限频域 Lipschitz非线性系统

Graphene enhances artemisinin production in the traditional medicinal plant Artemisia annua via dynamic physiological processes and miRNA regulation

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Plant Communications 2024年第3期5卷 31-46页

作者： Junfeng Cao Zhiwen Chen Luyao Wang ning yan Jialing Lin Lipan Hou Yongyan Zhao Chaochen Huang Tingting Wen Chenyi Li Saeed ur Rahman Zehui Liu Jun Qiao Jianguo Zhao Jie Wang yannan Shi Wei Qin Tong Si Yuliang Wang Kexuan Tang Frontiers Science Center for Transformative Molecules Joint International Research Laboratory of Metabolic and Developmental SciencesPlant Biotechnology Research CenterFudan-SJTU Nottingham Plant Biotechnology R&D CenterSchool of Agriculture and BiologyShanghai Jiao Tong UniversityShanghai 200240China Engineering Research Center of Coal-based Ecological Carbon Sequestration Technology of the Ministry of Education Key Laboratory of Graphene Forestry Application of National Forest and Grass AdministrationShanxi Datong UniversityDatong 037009China National Key Laboratory of Plant Molecular Genetics Institute of Plant Physiology and Ecology/CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghai 200032China Hainan Institute Zhejiang UniversityYongyou Industry ParkYazhou Bay Sci-Tech CitySanya 572000China College of Agriculture and Biotechnology Zhejiang UniversityHangzhou 310058China Shandong Provincial Key Laboratory of Dryland Farming Technology College of AgronomyQingdao Agricultural UniversityQingdao 266109China Institute of Millet Crops Hebei Academy of Agriculture&Forestry Sciences/Hebei Branch of China National Sorghum Improvement CenterShijiazhuang 050035China

We investigated the effects of graphene on the model herb Artemisia annua,which is renowned for produc-ing artemisinin,a widely used pharmacological *** growth and biomass were promoted when *** was cultivated with low concentrations of graphene,an effect which was attributed to a 1.4-fold increase in nitrogen uptake,a 15%–22%increase in chlorophyllfluorescence,and greater abun-dance of carbon cycling–related *** to 10 or 20 mg/L graphene resulted in a�60%increase in H2O2,and graphene could act as a catalyst accelerator,leading to a 9-fold increase in catalase(CAT)ac-tivity in vitro and thereby maintaining reactive oxygen species(ROS)***,graphene exposure led to an 80%increase in the density of glandular secreting trichomes(GSTs),in which artemisinin is biosynthesized and *** contributed to a 5%increase in artemisinin content inmature ***-estingly,expression of miR828 was reduced by both graphene and H2O2 treatments,resulting in induction of its target gene AaMYB17,a positive regulator of GST *** molecular and genetic assays showed that graphene-induced H2O2 inhibits micro-RNA(miRNA)biogenesis through Dicers and regulates the miR828–AaMYB17 module,thus affecting GST *** results suggest that graphene may contribute to yield improvement in *** via dynamic physiological processes together with miRNA regulation,and it may thus represent a new cultivation strategy for increasing yield capacity through nanobiotechnology.

关键词： Artemisia annua artemisinin glandular secreting trichomes GSTs miRNA graphene

基于荷电状态一致性的电池组双层动态均衡方法

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高电压技术 2024年第6期50卷 2410-2423页

作者：颜宁张骞李相俊马少华沈阳工业大学电气工程学院沈阳110870 中国电力科学研究院有限公司北京100192

针对储能系统中电池组充放电过程中能量利用率以及系统运行安全性较低的问题,提出考虑SOC一致性的电池组双层动态均衡方法。首先,采用耦合电感与Flyback变换器搭建均衡系统双层架构,建立电池组端电压、均衡电流及占空比间的关联特性。... 详细信息

针对储能系统中电池组充放电过程中能量利用率以及系统运行安全性较低的问题,提出考虑SOC一致性的电池组双层动态均衡方法。首先,采用耦合电感与Flyback变换器搭建均衡系统双层架构,建立电池组端电压、均衡电流及占空比间的关联特性。为提高电池组的供能可靠性,系统引入故障切除功能,通过改变开关阵列导通状态实现故障电池组的快速切除;其次,考虑增补电池组剩余容量较大问题,利用传统最值法改进的双层极值法,以荷电状态(stage of charge,SOC)作为均衡目标变量,对增补电池组进行快速放电均衡;最后,设计充放电及静置均衡实验,对比传统最值法,分析常态及故障切除后电路的均衡速度与均衡效率。结果表明,提出的双层均衡方法可以将均衡速度提升约10%,且故障切除后电路的均衡效率最高可达95%以上。

关键词：电池组荷电状态耦合电感故障切除双层均衡安全性

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