长沙DONE俱乐部

正本案位于长沙市中心区域,为城中新贵、潮人打造。从繁华街道进入酒吧前厅,经过特殊处理效果的腐铜格栅Logo墙,不复以往酒吧的庸俗之姿,奠定雅致艺术调性;以石材切割成特定造型拼接的地面与墙身,成本昂贵,细节讲究,于无声处塑造空间品质;左面的玻璃墙与喷绘彩画带来妩媚华美之感;整个前厅是     

基于图论分析的油气集输管网优化

油气集输管网系统主要由集中处理站和管路两部分组成，可用一个网络系统来描述，所涉及的油井、接转站、集中处理站都是网络节点，所有可能铺设的管道构成了网络的弧，弧的方向取决于油气的流向。集中处理站的位置、数量和输油（气）管网的布置是影响油气集输系统投资费用的最主要因素。因此，需对整个集输网络系统进行优化分析，以合理铺设输油管道、合理分配管网流量，减少输油管道的总投资。集输管网优化主要是针对集中处理站选址和输油管网布局的优化而言，本文拟借用图论分析中的Floyd算法确定油气集中处理站的最佳位置，用最小生成树优化输油管网的布置。     

T型微通道内液滴形成过程及长度的实验研究

利用高速摄像机研究截面为400×400 μm的正T型微通道内液-液两相流动特性,离散相（硅油）和连续相（质量分数为0.5%的十二烷基硫酸钠SDS蒸馏水）的体积流量范围分别为1~5、2~110 mL/h. 结果表明,两相流型主要为弹状流和滴状流,前者的形成机理为挤压机理,后者为剪切机理. 液滴的长度随离散相体积流量和离散相与连续相体积流量之比的增大而增大,随连续相的体积流量和毛细数的增大而降低. 液柱长度的变化规律与液滴长度相反. 液滴生成时间随离散相与连续相的体积流量的增大而逐渐降低,剪切机理生成液滴所需时间小于挤压机理. 依据实验结果,采用离散相与连续相体积流量比和连续相的毛细数,总结出无量纲液滴、液柱长度及液滴生成时间的预测关联式.     

水库洪水波传播的波速分析

本文对水库洪水波传播的波速进行了研究。结果表明:运动波波速代表洪峰处的传播速度,而惯性波波速则代表波锋处的传播速度;天然河道或水库河流区观测的洪峰波速是运动波波速,而在水库平水区通过闸门启闭观测到的波速则是惯性波波锋处的传播速度。     

Mixture effects during the oxidation of toluene, ethyl acetate and ethanol over a cryptomelane catalyst

The catalytic oxidation of two-component VOC mixtures (ethanol, ethyl acetate and toluene) was studied over cryptomelane. Remarkable mixture effects were observed on the activity and the selectivity. Toluene inhibits both ethyl acetate and ethanol oxidation, this effect being more evident in the case of ethyl acetate. For instance, the temperature for 100% conversion is about 210 °C when ethyl acetate is oxidised alone, and 250 °C or higher, when it is oxidised in mixtures with toluene. On the contrary, toluene oxidation is only slightly inhibited by the presence of ethyl acetate, while the presence of ethanol has a promoting effect. Concerning the mixtures of ethyl acetate and ethanol, both compounds have a mutual inhibitory effect, which is more evident in the case of ethyl acetate (the temperature for 100% conversion of ethyl acetate is about 45 °C higher when ethyl acetate is oxidised in mixtures with ethanol, while in the case of ethanol the corresponding increase is only 10 °C).     

GTS-335N全站仪水平角超限的校准

GTS-335N型全站仪是专为中国市场常规工程应用型用户开发设计的一款仪器,全中文液晶显示,操作简捷方便。 用户使用该仪器在倾斜巷道（即倾斜角较大处）进行测量操作时,若发现水平角超限,     

Design of single peptides for self-assembled conduction channels

Self-assembly of peptides provides the possibility of achieving relatively long range order on surfaces. These ordered peptides can also form channels that can be used as conduction channels. In the past, studies were focused on electron conduction through the secondary structure and amine bond of peptides and these restrict conduction of electrons over a short range (a few nanometers). In this work, we demonstrate the realization of electron conduction over a longer range of a few hundred nanometers via π-π stacking of the phenyl groups in the tyrosine residue of a single peptide. The peptide used in this work was designed with a phenyl ring for π-π stacking at one end and a carboxylic group at the other end for binding to aminopropyltriethoxysilane (APTES) treated silicon wafer. The distance between the peptides is controlled by a disulfide bond formed between neighboring cysteine residue and also by the amine groups of aminopropyltriethoxysilane. We demonstrate that the self-assembled peptide is conducting in the dry state over hundreds of nanometers, realizing the possibility of using peptide as a molecular wire.