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Control of slope-pattern on the deposition of fan-delta systems:a case study of the Upper Karamay Formation,Junggar Basin

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Frontiers of Earth Science 2024年第2期18卷 384-399页

作者： Mingxuan GAO Xinghe YU Shunli LI Wenmiao ZHANG Songhao HU menglu ZHANG School of Energy Resource China University of GeosciencesBeijing 100083China Key laboratory of marine reservoir evolution and hydrocarbon enrichment mechanism(Ministry of Education) China University of GeosciencesBeijing 100083China College of Geosciences China University of PetroleumBeijing 102249China No.1 Oil Production Plant Xinjang Oilfield CompanyKaramay 834099China

The Mesozoic fan deltas in the north-west margin of the Junggar Basin,as important petroleum reservoirs,exhibited complex facies change and internal structures with strong heterogeneity which were controlled by the transformation of slope-patterns,bringing great challenges to the study of sedimentary *** Upper Karamay Formation at north-west margin of the Junggar Basin was the objective in this paper which attempts to clarify the mechanism of sedimentary response and sand-body distribution of fan delta systems under the control of slope-pattern *** on a data set of cores,well logs and seismic,two types of slope-pattern were identified in the study area,which include steep-to-gentle in the south and gentle-to-steep in the *** control of difference slope-patterns on the sand-body distribution was clarified based on the analysis of the sedimentary dynamics,facies characteristics,and depositional evolution of the fan *** study shows that the transport mechanism of sediments on the steep-slope was dominated by debris flows,developing coarse-grained,thick-bedded lobes with poor structural maturity of *** the gentle-slope,the deposition was dominated by hyperconcentrated-traction currents,forming relatively fine-grained,thin-bedded lobes with increased sandy *** sand-bodies show frequent bar-channel transformation and channel down-cutting under the steep slope setting,which exhibit migration of isolated river channels on the gentle *** the steep-to-gentle pattern,the coase-grained sediments were mainly accumulated at slope toe,generally developed equiaxial ***,the coarse-grained clasts were preserved both at proximal and distal lobes on the gentle-to-steep slopes,showing obvious lateral extension of the fan *** slope patterns controlled sedimentary respond rates of the fan deltas during lake level *** comparing the modern cases of fan systems worldwide,the control of slope patterns on deposit

关键词： fan delta slope-pattern sedimentary characteristics the Upper Karamay Formation

Tissue distribution of cadmium and its effect on reproduction in Spodoptera exigua

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Journal of Integrative Agriculture 2024年第1期23卷 195-204页

作者： Honghua Su menglu Wu Yong Yang Yan Deng Yizhong Yang Qingming Sun College of Plant Protection Yangzhou UniversityYangzhou 225009China Institute of Fruit Tree Research Guangdong Academy of Agricultural Sciences/Key Laboratory of South Subtropical Fruit Biology and Genetic Resource UtilizationMinistry of Agriculture and Rural Affairs/Guangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree ResearchGuangzhou 510640China

Vegetable fields are often contaminated by heavy metals,and Spodoptera exigua is a major vegetable pest which is stressed by heavy metals mainly by *** this study,cadmium accumulation in the tissues of *** exposed to cadmium and its effects on the growth and development of the parents and the offspring were *** the stress of different concentrations of cadmium(0.2,3.2,and 51.2 mg kg^(-1)),the cadmium content in each tissue of *** increased in a dose-dependent *** the larval stage,the highest cadmium accumulation was found in midgut in all three cadmium treatments,but at the adult stage,the highest cadmium content was found in fat *** addition,the cadmium content in ovaries was much higher than in *** *** was stressed by cadmium and the F_(2)generation was not fed a cadmium-containing diet,the larval survival,pupation rate,emergence rate and fecundity of the F_(2)generation were significantly reduced in the 51.2 mg kg^(-1)treatment compared to the corresponding *** in the F_(2)generation of the 3.2 mg kg^(-1)treatment,the fecundity was significantly lower than in the parental *** fecundity of the only-female stressed treatment was significantly lower than that of the only-male stressed treatment at the 3.2 and 51.2 mg kg^(-1)cadmium exposure *** only mothers were stressed at the larval stage,the fecundity of the F_(2)generation was significantly lower than that of the F1generation in the 51.2 mg kg^(-1)treatment,and it was also significantly lower than in the 3.2 and 0.2 mg kg^(-1)*** results of our study can provide useful information for forecasting the population increase trends under different heavy metal stress conditions and for the reliable environmental risk assessment of heavy metal pollution.

关键词： heavy metal pollution cadmium Spodoptera exigua tissue distribution reproduction

Supertetragonal BaZrS_(3):A promising perovskite sulphide with giant ferroelectricity and low band gap

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Science China(Physics,Mechanics & Astronomy) 2024年第8期67卷 126-133页

作者： menglu Li Sa Zhang Chenhan Liu Xiaotao Zu Liang Qiao Haiyan Xiao School of Physics University of Electronic Science and Technology of ChinaChengdu 611731China College of Mathematics and Physics Chengdu University of TechnologyChengdu 610059China Micro-and Nano-scale Thermal Measurement and Thermal Management Laboratory Ministry of Education Key Laboratory of Numerical Simulation of Large-Scale Complex SystemsSchool of Energy and Mechanical EngineeringNanjing Normal UniversityNanjing 210023China

Over the past century,ferroelectricity has offered exciting opportunities for fundamental research and device ***,most of the discovered excellent ferroelectrics are oxide materials with large band gaps,limiting their potential for optoelectronics *** using first-principles calculations we identify a new narrow-gap ferroelectric beyond oxides,i.e.,ferroelectric perovskite sulphide BaZrS_(3).Under large compressive strains,BaZrS_(3)can be stabilized into a unique supertetragonal phase with an extraordinary polarization of 67.16μC/cm^(2),which is even stronger than that of conventional oxide ***,the supertetragonal BaZrS_(3)exhibits a direct narrow band gap of 1.2 eV and excellent electronic *** on the chemical bonding analysis,we attribute the formation of supertetragonal phase to charge re-ordering in which theπbond overlap along the long〈Zr-S〉bond completely vanishes and the antibonding states of theσbond appear below the Fermi *** work provides a conceptual strategy for designing new ferroelectrics for electronic and photovoltaic applications.

关键词： supertetragonal phase perovskite sulphide ferroelectricity

Signal generation in an isotropic medium in scanning electron acoustic microscope

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Chinese Journal of Acoustics 2008年第2期27卷 181-192页

作者： QIAN menglu peng Ruolong Institute of Acoustics Tongji University Shanghai 200092

Based on the research in Ref. [5][Materials Science and Engineering, 1989; A122： 57 63], an improved model of heat source is set up, the different modes of Lamb wave in an isotropic sample generated by a chopped electron beam at frequency f are obtained with integral transform and normal function expansion method, and the output signal of PZT coupled at the back surface of the sample is found out. The generation mechanism of SEAM （Scanning Electron Acoustic Microscopy） signal is discussed. It shows that the SEAM is a near field imaging technique with high spatial resolution and its best lateral spatial resolution is about 2√2α （α is the radius of the focused electron beam）. Some of experimental results of SEAM images are presented in the paper and it shows that the spatial resolution of SEAM is better than 0.5 μm and smaller than the thermal diffusion length of the sample. Therefore the character of near field imaging in SEAM is also proved experimentally.

关键词： Signal generation in an isotropic medium in scanning electron acoustic microscope mode than length

Supertetragonal BaZrS: A promising perovskite sulphide with giant ferroelectricity and low band gap

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Science China(Physics,Mechanics & Astronomy) 2024年

作者： menglu Li Sa Zhang Chenhan Liu Xiaotao Zu Liang Qiao Haiyan Xiao School of Physics University of Electronic Science and Technology of China College of Mathematics and Physics Chengdu University of Technology Micro-and Nano-scale Thermal Measurement and Thermal Management Laboratory Ministry of Education Key Laboratory of Numerical Simulation of Large-Scale Complex Systems School of Energy and Mechanical Engineering Nanjing Normal University

Over the past century, ferroelectricity has offered exciting opportunities for fundamental research and device ***, most of the discovered excellent ferroelectrics are oxide materials with large band gaps, limiting their potential for optoelectronics applications. Here using first-principles calculations we identify a new narrow-gap ferroelectric beyond oxides,i.e., ferroelectric perovskite sulphide BaZrS3. Under large compressive strains, BaZrS3can be stabilized into a unique supertetragonal phase with an extraordinary polarization of 67.16 μC/cm2, which is even stronger than that of conventional oxide ferroelectrics. Excitingly, the supertetragonal BaZrS3exhibits a direct narrow band gap of 1.2 eV and excellent electronic properties. Based on the chemical bonding analysis, we attribute the formation of supertetragonal phase to charge re-ordering in which the π bond overlap along the long ?Zr-S? bond completely vanishes and the antibonding states of the σ bond appear below the Fermi level. Our work provides a conceptual strategy for designing new ferroelectrics for electronic and photovoltaic applications.

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ADMETNet：The knowledge base of pharmacokinetics and toxicology network

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Journal of Genetics and Genomics 2017年第5期44卷 273-276页

作者： Quan Xu Ke Liu Xingming Lin Yangmei Qin Linshan Chen Jiao Cheng Mindong Zhong Qiushun He Yinbo Li Tingwu Wang Jianbo Pan menglu peng Lixia Yao Zhiliang Ji State Key Laboratory of Stress Cell Biology School of Life SciencesXiamen UniversityXiamen 361102China Department of Health Sciences Research Mayo ClinicRochesterMN 55905USA The Key Laboratory 0r Chemical Biology of Fujian ProvinceXiamen UniversityXiamen 361005China

A good drug or drug candidate should not only interact with its target molecule effectively and specifically,but also be absorbed into the body,distributed to the right location,metabolized into right compounds,and eliminated out of the body in proper *** processes of drug getting into and out of the body involve Absorption,Distribution,Metabolism,and Excretion（ADME）,

关键词： interact eliminated getting Absorption absorbed manner candidate toxicity Browse Pathway

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回应科斯嘉对威廉斯式内在理由的挑战

道德与文明 2024年第3期 91-103页

作者：刘蒙露中国人民大学哲学院北京100872

在理由内在主义的共识下,科斯嘉围绕实践理性的动机与规范性提出两个核心论点,向威廉斯式内在理由发起挑战。其挑战基于“实践理性有指导目的的实质规范性”而欲证明:威廉斯因为将实践理性理解为泛工具理性,所以他才怀疑其能独立提供动... 详细信息

在理由内在主义的共识下,科斯嘉围绕实践理性的动机与规范性提出两个核心论点,向威廉斯式内在理由发起挑战。其挑战基于“实践理性有指导目的的实质规范性”而欲证明:威廉斯因为将实践理性理解为泛工具理性,所以他才怀疑其能独立提供动机,而科斯嘉认为这会导致实践理性无任何规范性。从威廉斯的思想中寻找资源,可反驳科斯嘉的核心论点:怀疑实践理性自身的动机效力,是因为动机能为行动提供真实的心理学解释而理性不能;而实践理性的泛工具规范性是指“在我的主观目的”匹配“在世界的客观状况”,其成立无需承认理性蕴含道德、审慎等指导目的的规范性。二人的分歧可从“如何认识实践理性”引申出“如何理解实践所需的规范性”。宏观地,立足于威廉斯对现代道德的批判能够更深入地回应科斯嘉。威廉斯主张,实践领域真正需要的价值规范不是来自普遍、自律的实践理性原则,而是源于个体的真实品格、特定的人生计划、社会的影响、与他人的互动;实践理由应能打动行动者,在伦理生活中发挥实效。

关键词：理由内在主义实践理由实践理性规范性动机

Optimal transcorneal electrical stimulation parameters for preserving photoreceptors in a mouse model of retinitis pigmentosa

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Neural Regeneration Research 2024年第11期19卷 2543-2552页

作者： Sam Enayati Karen Chang Anton Lennikov menglu Yang Cherin Lee Ajay Ashok Farris Elzaridi Christina Yen Kasim Gunes Jia Xie Kin-Sang Cho Tor Paaske Utheim Dong Feng Chen Schepens Eye Research Institute of Massachusetts Eye and Ear Department of OphthalmologyHarvard Medical SchoolBostonMAUSA Institute of clinical medicine Faculty of MedicineUniversity of OsloOsloNorway Department of Medical Biochemistry Oslo University HospitalUniversity of OsloOsloNorway Department of Ophthalmology Drammen HospitalVestre Viken Hospital TrustDrammenNorway Department of Histology and Embryology School of MedicineMarmara UniversityIstanbulTurkiye

Retinitis pigmentosa is a hereditary retinal disease that affects rod and cone photoreceptors,leading to progressive photoreceptor *** research supports the beneficial effect of electrical stimulation on photoreceptor *** study aims to identify the most effective electrical stimulation parameters and functional advantages of transcorneal electrical stimulation(tcES)in mice affected by inherited retinal ***,the study seeked to analyze the electric field that reaches the retina in both eyes in mice and post-mortem *** this study,we recorded waveforms and voltages directed to the retina during transcorneal electrical stimulation in C57BL/6J mice using an intraocular needle probe with rectangular,sine,and ramp *** investigate the functional effects of electrical stimulation on photoreceptors,we used human retinal explant cultures and rhodopsin knockout(Rho^(-/-))mice,demonstrating progressive photoreceptor degeneration with *** retinal explants isolated from the donors’eyes were then subjected to electrical stimulation and cultured for 48 hours to simulate the neurodegenerative environment in *** density was evaluated by rhodopsin *** vivo Rho^(-/-)mice were subjected to two 5-day series of daily transcorneal electrical stimulation using rectangular and ramp *** function and visual perception of mice were evaluated by electroretinography and optomotor response(OMR),*** was used to assess the morphological and biochemical changes of the photoreceptor and bipolar cells in mouse *** recordings indicated effective delivery of rectangular,sine,and ramp waveforms to the retina by transcorneal electrical stimulation,of which the ramp waveform required the lowest *** of the total conductive resistance of the post-mortem human compared to the mouse eyes indicated higher cornea-to-retina resistance in human *** tem

关键词： bipolar cells electrical stimulation neuroprotection photoreceptor degeneration retina retinal explants retinitis pigmentosa transcorneal electrical stimulation waveform

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植物纹样与建筑材料:一种新的生态设计策略

分子植物育种 2024年第3期22卷 956-961页

作者：李梦露郑州商学院郑州451200

植物纹样,作为大自然中最具代表性的元素之一,逐渐被人们所重视并尝试应用于建筑材料设计中。本研究探讨了植物纹样与建筑材料结合的可能性及其生态意义,分析了如何将自然中的纹样与材料科学有效结合,以创造更为和谐、有机且具备自然美... 详细信息

植物纹样,作为大自然中最具代表性的元素之一,逐渐被人们所重视并尝试应用于建筑材料设计中。本研究探讨了植物纹样与建筑材料结合的可能性及其生态意义,分析了如何将自然中的纹样与材料科学有效结合,以创造更为和谐、有机且具备自然美感的建筑空间。本研究通过这种结合,可以实现建筑的美观性,还能进一步提高建筑的生态性能,如调节室内温度、增加隔音效果等。结合现实案例,本研究展示了这一策略在实际建筑项目中的应用,并预测了其在未来建筑设计中的发展趋势。希望通过对这一独特策略的探索,不仅能为建筑行业提供一种新的视角和思考方式,还能为公众带来全新的生活体验。

关键词：植物纹样生态设计建筑材料和谐空间材料科学