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Complementary interactions between indirect and direct fitness in a cooperatively breeding

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Current Zoology 2023年第1期69卷 76-81页

作者： zhibing li Xinwei Da Xin Lu Institute for Advanced Studies Wuhan UniversityWuhanChina Department of Ecology College of Life SciencesWuhan UniversityWuhanChina

Altruism is difficult to explain evolutionarily and to understand it,there is a need to quantify the benefits and costs to ***’s theory of kin selection argues that altruism can persist if the costs to altruists are offset by indirect fitness payoffs from helping related ***,helping nonkin is also common and in such situations,the costs must be compensated for by direct *** previous researchers tended to evaluate the indirect and direct fitness in isolation,we expect that they have a complementary interaction where altruists are associated with recipients of different relatedness within a *** prediction is tested with 12years of data on lifetime reproductive success for a cooperatively breeding bird,Tibetan ground tits Pseudopodoces *** who helped distantly related recipients gained significantly lower indirect benefits than those who helped closely related recipients,but the opposite was true for direct fitness,thereby making these helpers have an equal inclusive *** efforts were independent of helpers’relatedness to recipients,but those helping distantly related recipients were more likely to inherit the resident territory,which could be responsible for their high direct reproductive *** findings provide an explanatory model for the widespread coexistence of altruists and recipients with varying relatedness within a single population.

关键词： altruism cooperative breeding Hamilton’s rule kin selection

Critical One-Dimensional Absorption-Desorption with Long-Ranged Interaction

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Chinese Physics Letters 2019年第8期36卷 36-38页

作者： Xiaowei liu Jingyuan Guo zhibing li State Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology School of Physics Sun Yat-Sen University

An absorption-desorption model with long-ranged interaction is simulated by the dynamic Monte Carlo *** dynamic process has an inert phase and an active phase that is controlled by the absorption *** the active phase,the number of vacancies increases with time exponentially,while in the inert phase the vacant sites will be occupied by adsorbates *** the critical absorption rate,both the number of vacancies and the time-depending active probability exhibit power-law *** determine the critical absorption rate and the scaling exponents of the *** effect of the interaction range of desorption on the critical exponents is *** the short-ranged interaction limit, the critical exponents of Schlogl’s first model are *** model may describe the sta bility of the inner Helmholtz layer,an essential component of the electrochemical double-layer capacitor at a nanowire.

关键词： Monte Carlo Absorption-Desorption Interaction

Metal particle movement and distribution characteristics under AC voltage and ballplane electrodes

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High Voltage 2019年第2期4卷 138-143页

作者： Jixing Sun Lei Sun Weijiang Chen zhibing li Xianglian Yan Yuan Xu School of Electrical Engineering Beijing Jiaotong UniversityNo.3 Shang Yuan Cun in Haidian DistrictBeijing CityCityPeople's Republic of China State Grid Corporation of China No.86West Chang'an AvenueXicheng DistrictBeijingPeople's Republic of China China Electric Power Research Institute No.15 of Qinghe Xiaoying East Road in Haidian DistrictPeople's Republic of China

Metal particles,difficult to be eliminated in gas-insulated metal-enclosed switchgear(GIS),can cause GIS discharge and breakdown between electrodes,or flashover on the insulator *** influences the development of ultra-high voltage(UHV)***,the work optimised the model of metal particle movement under AC voltage,studying the metal particle movement and distribution characteristics between ball-plane electrodes through experiment and *** AC voltage,the particle jumps on a small scale on the plane *** the increase of voltage,the jump amplitude ***,the collision frequency decreases until the particle collides with the ball *** the initial phase angle of power changes,the particle-moving pattern is symmetrical in the angle ranging from 0 to 180°,and from 180 to 360°.The collision frequency changes slightly with the increase of jump amplitude when the angel ranges from 0 to 120°.

关键词： surface breakdown particle

Double-lipase Catalyzed Synthesis of Kojic Dipalmitate in Organic Solvents

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Chemical Research in Chinese Universities 2017年第6期33卷 903-907页

作者： WANG Zhiyuan LUO Wen FU Junying li zhibing WANG Zhongming LU Pengmei Key Laboratory of Renewable Energy of Chinese Academy of Sciences Guangdong Key Laboratory of New and Renewable Energy Research and Development Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Guangzhou 510640 P. R. China

Kojic dipalmitate（KDP） was synthesized by the way of esterification ofpalmitic and kojic acids in organic solvent, with double-lipase as the biocatalyst. Four commercially available lipases（Amano PS, Novozym 435, lipozyme TL IM and lipozyme RM IM） were used to group six double-lipase combinations. These combinations were studied and Amano PS-Novozym 435 was found to have the best efficiency and was selected for optimizing the reaction conditions. The optimal reaction conditions were as follows. The mass ratio ofAmano PS to Novozyme 435 was 1：1.5, with stirring speed of 500 r/min, substrates molar ratio of 1：2, 50 ℃, 5%（mass fraction） catalyst dosage of kojic acid quantity and using acetone as co-solvent. Under these conditions, the diesterification of C5 and C7 hydroxyl groups of kojic acid molecule could be well catalyzed by double-lipase and realize a high KDP yield of 85%.

关键词： Kojic acid Palmitic acid Kojic dipalmitate Double-lipase catalysis Diesterification

Ecological and environmental explanation of microbiotic crusts on sand dune scales in the Gurbantonggut Desert, Xinjiang

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Progress in Natural Science:Materials International 2005年第12期15卷 1089-1095页

作者： CHEN Yaning,li Weihong,ZHOU zhibing and liU Jiazhen Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China

Results obtained from the field investigation and the analysis in laboratory show that many species of microbiotic crusts of lichens,mosses and algae develop extensively in the Gurbantonggut Desert,*** formation,species and distribution are closely related to the environmental conditions at the different positions of sand *** animalcule crusts develop mainly on the mobile or semi-mobile sand surface of dune tops,the alga crusts develop mainly at the upper to middle parts of dune slopes,the lichen crusts develop at middle and lower parts of dune slopes,and the moss crusts are mainly distributed at the lower part of dune slopes and the interdune *** species,thickness and developing degree of microbiotic crusts increase from the upper part to the middle and lower parts of dune slopes and the interdune lowlands,and an obvious contrast between the microbiotic crusts and the different species of plant communities *** development and differentiation of microbiotic crusts at the different positions of dunes are the ecological appearance and the natural selection of synthetic adaptability of the different microbiotic crust species to the local environmental conditions,and are closely related to the ecological conditions,such as the physiochemical properties of soils and stability of topsoil texture.

关键词： microbiotic crust sand done scales environmental explanation the Gurbantonggut Desert

Coherent field electron emission theory

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Coherent field electron emission theory

温差对预应力碳纤维材料板加固桥梁结构的应力损失分析

中国电子学会真空电子学分会第十九届学术年会

作者： zhibing li State Key Laboratory of Optoelectronic Materials and Technologies School of Physics and EngineeringSun Yat-sen University

The field emission interference fringes of graphene was reported recently.[1] It is a challenge to explain/predict the coherent cold field emission (CCFE) image based on microscopic theory. A new theoretical approach to field electron emission [2] that can reveal the relative phases of atoms involved in the emission will be introduced in this presentation. This approach gives the emission wave function, incorporating the electronic structure of the Nano-emitter and dealing with the screening of the macroscopic applied field and of the atomic orbitals along the *** φja(r) be the wavefunction of the α-th atomic orbital. Expanding the n-th eigenstate in the atomic orbitals,one has Ψn(r)=∑a,jCna,φja(r-rja).The wave of frequency ω emitted from Ψn for large times is strictly given by the path-decomposition formula,Ψnem(r,ω)=∫ΩGr(r,r’)it/2m∫r’’G(r’,r’’)Ψn(r’’)(1) Where ∫Ω is the surface integral over an emission surface Ω that separates the emitter and the vacuum, and n is the right normal derivative minus the left one on Ω. The G is the retarded fixed energy Green’s function and the restricted Green’s function Gr is defined by a path integral over energy-fixed paths that stay strictly outside Ω and do not touch it except at the initial point. When φja(r) and the tunneling barrier are known, one may solve (1) and obtain all coherent *** emission images of graphene, with and without magnetic field, are given as examples. Field emission wave function from graphene in magnetic field is obtained. The emission image reveals structure of the Landau levels and depends on the phase difference between two sub-lattices.

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工业建筑 2014年第9期44卷 162-165,171页

作者：李知兵湖南大学长沙410082 湖南工学院湖南衡阳421002

在不同温度下对预应力碳纤维(CFRP)板加固的桥梁进行观测;分析温差对预应力CFRP板的应力损失;通过大量的数据拟合了CFRP板应变差与温差的计算公式,并根据分析结果提出了有实际指导意义的建议。

关键词：温差预应力CFRP板应力损失

The rms-flux relation of Cyg X-2 in the horizontal branch

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Science China(Physics,Mechanics & Astronomy) 2010年第S1期53卷 86-90页

作者： li zhibing,LEI YaJuan,QU JinLu,ZHANG Shu & SONG liMing Key Laboratory for Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences(CAS),Beijing 100049,China Key Laboratory for Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences (CAS) Beijing China

We have investigated the relation between the root mean square(rms) variability and the X-ray flux(rms-flux relation) of the Z source Cyg X-2,and as well the energy dependence based on the Rossi X-ray Timing Explorer(RXTE) *** currently focus on the horizontal branch(HB),due to the negative correlation in flux of the soft and the hard *** rms-flux correlation has energy dependence as follows:positive at hard X-rays(above 10 keV) but negative at soft X-rays(below 10 keV).This provides a feature different from the previous one,and may be suggestive of different origins of X-rays below and above 10 ***,the overall spectrum can be well fitted with a model consisting of a blackbody and Comptonization components,but the fitting results do not reveal any features around 10 keV that could account for such a change in the rms-flux relation.

关键词： accretion accretion disk—binaries:close-stars:individual(Cygnus X-2)-X-rays:binaries

The effect of li doping concentration and growth conditions on the formation of p-type ZnO

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The effect of Li doping concentration and growth conditions ...