نتایج جستجو برای: room and pillar

تعداد نتایج: 16839779  

2008
Amanda White Ashutosh Shastry Felix I. Simonovsky Buddy D. Ratner Karl Böhringer

Surfaces that exhibit hydrophobic and hydrophilic characteristics are essential when developing Lab-onChip technologies. The availability of a droplet to be maneuvered on a surface develops from hydrophobic surface characteristics, while non-protein fouling characteristics are found in hydrophilic surfaces. By combining these traits, an ideal surface can be produced for biomedical applications....

Journal: :Physical chemistry chemical physics : PCCP 2016
Jaehoon Chung Da Hye Won Jaekang Koh Eun-Hee Kim Seong Ihl Woo

To achieve high performance of electrochemical CO2 reduction, a series of Cu pillar electrodes (Cu-2.5 h, Cu-5 h) were fabricated by using an electrodeposition method, and then their catalytic activities and reaction mechanisms were investigated. The series of Cu pillar electrodes exhibited improved electrocatalytic activities toward CO2 reduction to formic acid (HCOOH) as Cu pillars on electro...

2018
Yizong He

A kind of novel pillar (used to support a windshield) has been designed to replace the conventional ones used in all sorts of vehicles. The prominent advantage of such a pillar is that it appears invisible so that the blind spots caused by A, B, C and D pillars will be diminished to a large extent or even eliminated completely. Therefore, the driver’s view is enlarged considerably. An intrinsic...

Journal: :Chemical Society reviews 2012
Peter J Cragg Kushal Sharma

Pillar[5]arenes are [1(5)]paracyclophane derivatives consisting of 1,4-disubstituted hydroquinones linked by methylene bridges in the 2,5-positions. The first report of these novel macrocycles was in 2008, when 1,4-dimethoxypillar[5]arene was prepared in 22% yield, and subsequent improvements in synthetic methods have allowed the number of derivatives to expand significantly. In addition to D(5...

Journal: :Analytical chemistry 2013
Teresa B Kirchner Nahla A Hatab Nickolay V Lavrik Michael J Sepaniak

Unlike HPLC, there has been sparse advancement in the stationary phases used for planar chromatography. Nevertheless, modernization of planar chromatography platforms can further highlight the technique's ability to separate multiple samples simultaneously, utilize orthogonal separation formats, image (detect) separations without rigorous temporal demands, and its overall simplicity. This paper...

Journal: :Journal of the American Chemical Society 2012
Tomoki Ogoshi Kanako Kida Tada-aki Yamagishi

A new water-soluble thermoresponsive pillar[6]arene with triethylene oxide groups was synthesized. The pillar[6]arene showed lower critical solution temperature behavior in aqueous solution. Its clouding point was photoreversibly switched based on a photoresponsive host-guest system. The trans form of an azobenzene guest formed a stable 1:1 complex with the pillar[6]arene. Complexation increase...

Journal: :Nature 1892

Journal: :Frontiers in Earth Science 2023

Possible issues during mining of the upper coal seam in old goaf nearby seams, including step subsidence, gas overflow goaf, and roadway around rock fragmentation. Using Hanjiawa Coal Mine’s mining, which takes place 28 m above working face lower seam, as research’s focal point. The paper focuses on self-stability pillar failure form floor, roof caving rule bearing capacity interlayer strata us...

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