Diatom diet selectivity by early post-larval abalone Haliotis diversicolor supertexta under hatchery conditions

Benthic diatoms constitute the primary diet of abalone during their early stages of development.To evaluate the dietary preferences of early post-larval abalone,Haliotis diversicolor supertexta,we analyzed the gut contents of post-larvae that settled on diatom films.We compared the abundance and species diversity of diatom assemblages in the gut to those of the epiphytic diatom assemblages on the attachment films,and identified 40 benthic diatom species in the gut contents of post-larvae 12 to 24 d after settlement.The most abundant taxa in the gut contents were Navicula spp.,Amphora copulate,and Amphora coffeaeformis.Navicula spp.accounted for 64.0% of the cell density.In the attachment films,we identified 110 diatom species belonging to 38 genera.Pennate diatoms were the dominant members including the species Amphiprora alata,Cocconeis placentula var.euglypta,Cylindrotheca closterium,Navicula sp.2,and A.coffeaeformis.Nano-diatoms(<20 μm in length) accounted for a considerable proportion of the total species..

貌合神离：中英文同款广告的符号和眼动分析

通过一系列中英文同款广告，该研究结合符号和眼动技术，指出相似的表象之下，微妙的细节调整如何折射出中西方读者对媒介内容叙述方式的不同偏好，以及处理群己关系的不同价值取向，从而呈现出“貌合神离”的警民、亲子、师生、夫妻、男女等社会关系。本文系国家自然科学基金项目“东西方不同文化思维方式对广告说服的影响：一个自下而上的脉络建构与验证”（项目编号：71372076）的阶段性研究成果

简析建筑工程的预算编制要点及其造价控制措施

建筑工程预算的合理编制与造价控制对于工程建设而言，可以节约资源，降低成本。如果建筑工程预算编制与造 价控制不合理，最终会影响企业的施工结算，甚至于引发相关各方经济纠纷。基于此，本文阐述了建筑工程预算编制准备要 点，对建筑工程预算的编制要点及造价控制措施进行了简要分析，旨在提高建筑工程的经济效益。</jats:p

Elastic deformation of soft membrane with finite thickness induced by a sessile liquid droplet

In this paper, the role of vertical component of Surface tension of a droplet on the elastic deformation of a finite-thickness flexible membrane was theoretically analyzed using Hankel transformation. The vertical displacement at the Surface was derived and can be reduced to Lester's or Rusanov's solutions when the thickness is infinite. Moreover, some Simulations of the effect of a liquid droplet on a membrane with a finite thickness were made. The numerical results showed that there exists a saturated membrane thickness of the order of millimeter, when the thickness of a membrane is larger than such a value, the membrane can be regarded as a half-infinite body. Further numerical calculations for soft membrane whose thickness is far below the saturated thickness were made. By comparison between the maximum vertical displacement of an ultrathin soft membrane and a half-infinite body, we found that Lester's or Rusanov's solutions for a half-infinite body cannot correctly describe Such cases. In other words, the thickness of a soft membrane has great effect on the surface deformation of the ultrathin membrane induced by a liquid droplet. (C) 2009 Elsevier Inc. All rights reserved

Deformation Of Pdms Membrane And Microcantilever By A Water Droplet: Comparison Between Mooney-Rivlin And Linear Elastic Constitutive Models

In this paper, we studied the role of vertical component Of Surface tension of a water droplet on the deformation of membranes and microcantilevers (MCLs) widely used in lab-on-a-chip and micro-and nano-electromechanical system (MEMS/NEMS). Firstly, a membrane made of a rubber-like material, poly(dimethylsiloxane) (PDMS), was considered. The deformation was investigated using the Mooney-Rivlin (MR) model and the linear elastic constitutive relation, respectively. By comparison between the numerical solutions with two different models, we found that the simple linear elastic model is accurate enough to describe such kind of problem, which would be quite convenient for engineering applications. Furthermore, based on small-deflection beam theory, the effect of a liquid droplet on the deflection of a MCL was also studied. The free-end deflection of the MCL was investigated by considering different cases like a cylindrical droplet, a spherical droplet centered on the MCL and a spherical droplet arbitrarily positioned on the MCL. Numerical simulations demonstrated that the deflection might not be neglected, and showed good agreement with our theoretical analyses. (C) 2008 Elsevier Inc. All rights reserved

液气界面张力垂直分量在固着液滴蒸发中的作用

使用Hankel变换方法分析了液气界面张力垂直分量作用下薄膜的表面变形,得到了反映膜厚影响的解析解.基于圆板弯曲理论和叠加法,理论分析了液滴作用下圆板的弯曲问题.开展了去离子水液滴在不同质量配比的聚二甲基硅氧烷表面上的蒸发实验,得到了常接触半径模式时接触角的变化规律

Experimental and theoretical investigations of evaporation of sessile water droplet on hydrophobic surfaces

Experiments of sessile water droplet evaporation on both polydimethylsiloxane (PDMS) and Teflon surfaces were conducted. All experiments begin with constant contact area mode (the initial contact angle is greater than 90&deg;), switch to constant contact angle mode and end with mixed mode. Based on the assumptions of spherical droplet and uniform concentration gradient, theoretical analyses for both constant contact area and constant contact angle modes are made and theoretical solutions are derived accordingly, especially a theoretical solution of contact angle is presented first for CCR stage with any value of the initial contact angle. Moreover, comparisons between the theoretical solutions and experimental data of contact angle in CCR stage demonstrate the validity of the theoretical solution and it would help for a better understanding and application of water droplet on solid surfaces, which is quite often encountered in lab-on-a-chip, polymerase chain reaction (PCR) and other micro-fluidics devices.<hr /

The Analysis of the Low Coverage Haematococcus Pluvialis Draft Genome

The investigation on the genomic study of Haematococcus pluvialis would be significant to explore the origin and evolution of green algae and the stress responses in Haematococcus pluvialis; and promote the development of Haematococcus pluvialis industry. The low-coverage draft genome of Haematococcus pluvialis was constructed by the Illumina Hiseq 2500 platform. The predicted genome size was approximately 547Mb,with the GC content of 59.2% by calculating k-mer distribution. The draft genome contained 11 059 predicted proteincoding genes and the average gene size and CDS were 1 711bp and 681bp; every gene contained 3.2 exons and the size of exon was 353bp in average. The analysis of metabolic pathway indicated that the low-coverage genome contained whole glycolysis,tricarboxylic acid cycle,phosphopentose,purine and pyrimidine synthesis and other basic metabolism pathway

石墨二炔及其电子转移增强特性

石墨二炔是由sp和sp2杂化的碳原子构成的新的碳同素异形体。由于石墨二炔具有独特的拓扑结构和电子结构、较高的电荷迁移率及优异的电子传输性能,使其与其他材料相互作用,可表现出独特的电子转移增强特性。本文基于石墨二炔的电子转移增强特性,概述了石墨二炔及其电子转移增强特性的最新研究进展,包括金属氧化物/石墨二炔、金属纳米颗粒/石墨二炔、聚合物/石墨二炔以及染料分子/石墨二炔等多种石墨二炔基材料。本文从理论和实验研究两个方面详细阐述了石墨二炔的电子转移增强特性、石墨二炔与不同材料的相互作用以及相关的应用。希望该综述能对石墨炔化学的发展起到一定的积极作用