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Analysis of grey model between seawater environmentalessential factors and phytoplankon dynamics in the Dapeng Bay, the South China Sea

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Acta Oceanologica Sinica 1999年第1期18卷 103-108页

作者： Huang Weijian Qi Yuzao Han boping and chen Shurong Institute of Hydrobiology Jinan University Guangzhou 510632 China

The relation between the dynamics of phytoplankton and essential environmental factors of seawater has been studied. According to the comparison between environmental factors of seawater. and on the basis of mathematical space theory and the four principles of normalization, even symmetry, globality and proximity, smoothing discrete function, the grey derivative and the grey differential equation have been defined, the grey models and relation to the factors (the seawater physical and chemical factors) were estimated. The calculation results indicate that zooplankton,Mn, Fe and dissolved oxygen are the moot important factors.

关键词： Grey model phytoplankton Dapeng Bay

Kinetics of Nitrogen Removal from Molten Steel under Vacuum and Gas-Blowing Conditions

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International Journal of Minerals,Metallurgy and Materials 1998年第1期12卷 5-8页

作者： Jie Fu Heming Chang Shixiang Zhou boping chen (Metallurgy Engineering School, University of Science and Technology Beijing, Beijing 100083, China) Metallurgy Engineering School University of Science and Technology Beijing Beijing 100083 China

The kinetics of nitrogen removal from molten steel under vacuum and gas-blowing conditions has beenstudied during the VIM process. The experimental results indicated that vacuum affected the kinetics of nitrogenremoval in the range of 67-5 360 Pa. At 67 Pa, the rate of nitrogen removal is controlled by the liquid phase masstransfer of nitrogen in molten steel. At 2 680Pa, the limited step for nitrogen removal from molten steel is the chemical reaction at the metal/gas interface. Under the present experimental conditions, the type (Ar, CO, CO2) and quantity of gas flowed have no evident influences on the rate of nitrogen removal. The ratio of nitrogen removal of gasbubbles is less than 3 %. Based on the experimental results, the mechanism of nitrogen removal during the VDprocess with argon blowing and the other melting or secondary refining processes with carbon-oxygen reaction havebeen discussed. Some new viewpoints are proposed.

关键词： kinetics nitrogen removal vacuum gas-blowing

Inversion of post-stack MCMC geostatistical method in thin coal seams

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Inversion of post-stack MCMC geostatistical method in thin c...

Improved piezoelectric and luminescent properties in Sm-modified Bi_(0.5)Na_(0.5)TiO_(3)-BaTiO_(3) multifunctional ceramics

2019年中国地球科学联合学术年会

作者： chen boping 赵智嵘 China University of Mining Technology (Beijing)

For the existence of thin coal seams in coal mining seams, the constrained sparse pulse inversion method commonly used in post-stack seismic inversion is difficult to accurately obtain the thickness of thin coal seams. In this paper, using MCMC geostatistical inversion method to invert the thin coal seam forward model. The results of inversion are basically consistent with the true thickness of the model. In the application of actual coal mine seismic data, the inversion result of the method and actual well data has a higher verification rate.

关键词： Inversion of post-stack MCMC geostatistical method in thin coal seams

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Journal of Materiomics 2024年第4期10卷 803-810页

作者： Shuai cheng Kehong Zhang Chongyang Li boping Zhang Jianguo chen Kang Sun Changrong zhou Jingtai Zhao Qisheng Lin Guanghui Rao Siqi Shi School of Materials Science and Engineering Shanghai UniversityShanghai200444China Guangxi Key Laboratory of Information Materials&School of Materials Science and Engineering Guilin University of Electronic TechnologyGuilin541004GuangxiChina School of Materials Science and Engineering University of Science and Technology BeijingBeijing100083China School of Information Engineering Lanzhou University of Finance and EconomicsLanzhou730020China

The 0.93(Na_(0.5)Bi_(0.5))_(1–x)Sm_(x)TiO_(3)-0.07BaTiO_(3) multifunctional ceramics were prepared by solid-phase reaction *** phase structure,microstructure,electrical and photoluminescent properties were systematically *** increasing x,the ceramics undergoes the phase transition from rhombohedral to tetragonal with some rhombohedral distortion,along with a reduced grain size and increased relative *** the other hand,the Sm3+doping enhances the electric-field driven reversible phase transition and domain size,and reduces the domain walls,thereby contributing to improved piezoelectricity and decreased depolarization temperature(T_(d))from 91℃ to 40℃.Excellent piezoelectric properties of d_(33)=213 pC/N and kp=29.9% are achieved in the x=0.010 *** excitation(407 nm),the Sm^(3+)-doped ceramic exhibits bright reddish-orange fluorescence at 564,599,646 nm and 710 nm.A polarization-induced enhancement of photoluminescence is obtained in BNBT-_(x)Sm ceramics with an improved relative intensity of emission band at 646 *** results indicate that Sm^(3+)-doped BNBT ceramics show great potential in electro-optic integration and coupling device applications.

关键词： Piezoelectricity Curie temperature Phase transitions Thermal stability Photoluminescence

Bao-Gan-Xiao-Zhi-Wan Treatment Attenuates Methionine-choline-deficient Diet-induced Metabolic Dysfunction-associated Steatohepatitis in Rats by Modulating the NF-κB Signal Pathway and Autophagy

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Journal of Clinical and Translational Hepatology 2024年第6期12卷 607-611页

作者： Liming Zhou Xiaobin Zeng Xiaofang Wei Wanying Shen Jie Yao Weigang Wu Lanlan Ge boping Zhou The Second Clinical Medical College Jinan University(Shenzhen People’s Hospital)ShenzhenGuangdongChina Department of Endocrinology Shenzhen Second People’s Hospitalthe First Affiliated Hospital of Shenzhen UniversityHealth Science Center of Shenzhen UniversityShenzhenGuangdongChina Center Lab of Longhua Branch and Department of Infectious Disease Shenzhen People’s Hospital(The Second Clinical Medical CollegeJinan University)ShenzhenGuangdongChina Department of Pathology(Longhua Branch) Shenzhen People’s Hospital(The Second Clinical Medical CollegeJinan University)ShenzhenGuangdongChina College of Pharmacy Gansu University of Chinese MedicineLanzhouGansuChina

Non-alcoholic fatty liver disease(NAFLD)is a condition involving the accumulation of liver fat in excess of 5–10%of its weight after excluding excessive alcohol intake and any other causes of liver disease or steatosis.1 NAFLD has increased with the occurrence of obesity,diabetes,and metabolic syndrome,due to which an international consensus of experts proposed renaming it metabolic dysfunction-associated fatty liver disease(MAFLD).

关键词： NAFLD liver intake

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浅谈碾米机的选用

粮食与食品工业 2005年第3期12卷 18-20页

作者：陈伯平安徽经济技术学校合肥230031

从碾米的机理出发,分析了影响碾米工艺效果的因素,就我国目前碾米机的选用情况,提出了碾米机选型、操作中应注意的问题。

关键词：碾米机工艺效果选型

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浅析课堂上的自主性学习

中学生物学 2007年第5期23卷 16-17页

作者：陈伯萍浙江省诸暨市湄池中学 311814

现在的高中教学基本上都是靠理论知识来提高成绩,而缺乏较多的实验和实践,枯燥乏味,使得学生学习的积极性普遍不高.

关键词：自主性学习课堂高中教学学生学习

Loss of the accessory chromosome converts a pathogenic tree-root fungus into a mutualistic endophyte

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Plant Communications 2024年第1期5卷 164-180页

作者： Huanshen Wei Zhenhui Zhong Zhongfeng Li Yuwei Zhang Eva H.Stukenbrock boping Tang Ningning Yang Riccardo Baroncelli Long Peng Zhuo Liu Xinghua He Yuzhan Yang Zhilin Yuan State Key Laboratory of Tree Genetics and Breeding Chinese Academy of ForestryBeijing 100091China Research Institute of Subtropical Forestry Chinese Academy of ForestryHangzhou 311400China State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops Fujian Agriculture and Forestry UniversityFuzhou 350002China Environmental Genomics Christian-Albrechts University24118 KielGermany Max Planck Fellow Group Environmental Genomics Max Planck Institute for Evolutionary Biology24306 PlonGermany Jiangsu Key Laboratory for Bioresources of Saline Soils School of WetlandsYancheng Teachers UniversityYancheng 224002China Department of Agricultural and Food Sciences(DISTAL) University of Bologna40127 BolognaItaly

Some fungal accessory chromosomes(ACs)may contribute to virulence in ***,the mecha-nisms by which ACs determine specific traits associated with lifestyle transitions along a symbiotic contin-uum are not *** we delineated the genetic divergence in two sympatric but considerably variable isolates(16B and 16W)of the poplar-associated fungus Stagonosporopsis *** identified a-0.6-Mb horizontally acquired AC in 16W that resulted in a mildly parasitic lifestyle in *** deletion of the AC(D16W)significantly altered the fungal ***,D16W was morphologically more similar to 16B,showed enhanced melanization,and established beneficial interactions with poplar plants,thereby acting as a dark septate *** sequencing(RNA-seq)analysis showed that AC loss induced the upregulation of genes related to root colonization and biosynthesis of indole acetic acid and *** observed that the AC maintained a more open status of chromatin across the genome,indicating an impressive remodeling of cis-regulatory elements upon AC loss,which potentially enhanced symbiotic *** demonstrated that the symbiotic capacities were non-host-specific through comparable experiments on Triticum–and Arabidopsis–fungus ***,the three isolates generated symbiotic interactions with a nonvascular *** summary,our study suggests that the AC is a suppressor of symbiosis and provides insights into the underlying mechanisms of mutualism with vascular plants in the absence of traits encoded by the *** speculate that AC-situ-ated effectors and other potential secreted molecules may have evolved to specifically target vascular plants and promote mild virulence.

关键词： dark septate endophytes effectors lifestyle transition root–fungus symbioses

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手术治疗踝关节骨折50例的临床疗效分析