Results 131 to 140 of about 234,477 (317)

Dynamic Regulation of Supramolecular Chirality in an Amphiphilic Dimeric Macrocycle Through Azobenzene‐Based Photoisomerization

Advanced Science, EarlyView.
A stimuli‐responsive supramolecular system has been rationally designed enabling hierarchical control over supramolecular handedness. This hybrid architecture retains orthogonal host‐guest properties and displays unique amphiphilicity‐directed chiral self‐assembly.
Minzan Zuo, Yi Shi, Xueqi Tian, Tao Zhang, Jianmin Jiao, Yuhong Shen, Yutong Xie, Jianwen Wei, Xiao‐Yu Hu   +8 more
wiley   +1 more source

A novel approach to investigating indoor/outdoor pollution links : combined magnetic and PAH measurements. [PDF]

, 2008
In a preliminary study, paired indoor and outdoor air sampling was conducted at three locations around the city of Lancaster, UK to examine the influence of combustion sources on air quality by measuring particulate concentrations, particulate magnetic ...
Karloukovski, V. V., Halsall, Crispin J., Shah, P., Watkins, S. J., Maher, Barbara A.   +4 more
core  

(Table 2) Concentrations and composition of aliphatic hydrocarbons in bottom sediments of the Sakhalin shelf

, 2008
Aliphatic and polycyclic aromatic hydrocarbons were examined in the surface layer of bottom sediments from the eastern part of the Sakhalin Island shelf (materials were sampled in summer 2002).
Nemirovskaya, Inna A, Inna A Nemirovskaya (6972215)   +1 more
core   +1 more source

Effects of Direct-Quadrature Rotor Current Sensors’ Faults in Wind Energy Conversion System based on Doubly Fed Induction Generator

Electrica
This paper investigates the dynamic performance of a grid-connected wind energy conversion system (WECS) based on a doubly fed induction generator (DFIG) in the presence of additive and multiplicative faults in directquadrature rotor current sensors ...
Naziha Chouider, Karim Beddek, Rezki Haddouche, Mohamed Zerrougui, Omar Ramdani   +4 more
doaj   +1 more source

3D Engineered Dual‐Redox Zinc‐Iodine Microbatteries for Intrinsically Safe on‐Chip Energy Storage

Advanced Science, EarlyView.
Dual‐redox Zn//I2 microbatteries enable high‐performance on‐chip energy storage by combining Zn2+ plating/stripping with reversible I−/I3− chemistry. Integrated with PANI micro‐cathode and 3D porous Au collectors, the system delivers enhanced capacity, energy, and power, advancing safe, CMOS‐compatible microsystems for next‐generation electronics ...
Nibagani Naresh, Sanat Nalini Paltasingh, Yijia Zhu, Xiaopeng Liu, Yujia Fan, Monojit Mondal, Su Jin Heo, Shuhui Li, Mingqing Wang, Shaoliang Guan, Yanzhuo Li, Georgios Nikiforidis, Shahab Akhavan, Ivan P. Parkin, Saroj Kumar Nayak, Michael De Volder, Buddha Deka Boruah   +16 more
wiley   +1 more source

Sulfur-bound biomarkers of a Monterey shale and a Greenland lake sediment

, 2009
Seeking to reconstruct the biogeochemical processes that produced organic sulfur compounds in two unique depositional environments, we used the nickel boride desulfurization reaction to release hydrocarbons from sulfur-bound macromolecules not otherwise ...
Joshua Stern, Joshua G. Stern
core   +2 more sources

Reaction‐Induced Reversible Reconstruction Enhanced Ni‐MgO/CaO Dual Functional Material for Stable CO2 Capture and In Situ Conversion

Advanced Science, EarlyView.
A highly dispersed NiO‐MgO solid solution (MgxNi1‐xO) is created in a hierarchically porous Ca‐based matrix to protect Ni and CaO nanoparticles against carbon deposition and sintering. Owing to the reversible reconstruction of MgxNi1‐xO, this superior structure is self‐regenerative in the calcium looping dry reforming of methane process, thereby ...
Hao Xu, Chen Hou, Jiawei Zhong, Chuande Huang, Wei Wei, Jiawei Hu   +5 more
wiley   +1 more source

A promotion effect of alkaline-earth chloride on N-hydroxyphthalimide-catalyzed aerobic oxidation of hydrocarbons

, 2009
Alkaline-earth chloride was used as an effective promoter for the aerobic oxidation of hydrocarbons catalyzed by N-hydroxyphthalimide (NHPI). Various hydrocarbons including benzylic compounds, cycloalkene, and cycloalkane can be easily oxygenated with ...
Zhou, Lipeng, Chen, Chen, Xu, Jie, Miao, Hong, 徐杰, Chen, Yong, Su, Yunlai, Yang, Xiaomei   +7 more
core   +1 more source

Advanced Multiscale Modeling for Revealing Anomalous Fluid Transport Induced by Confinement Interfacial Layer Reconstruction in Sub‐10 nm Space

Advanced Science, EarlyView.
Integrating experimental insights with molecular dynamics simulations, we establish an advanced mathematical model for fluids confined in sub‐10‐nm channels, enabling quantitative prediction of interfacial layer thickness and viscosity by accounting for channel material, temperature, and fluid properties.
Xiang Zhang, Bing Wei, Jingyi Wang, Runnan Wu   +3 more
wiley   +1 more source

Environmental pollutants from the Scott and Shackleton expeditions during the ‘Heroic Age’ of Antarctic exploration

, 2003
Early explorers to Antarctica built wooden huts and brought huge quantities of supplies and equipment to support their geographical and scientific studies for several years.
Farrell, Roberta L., Jurgens, Joel Allan, Blanchette, Robert A., Held, Benjamin W., Benjamin W. Held, Joel A. Jurgens, Robert A. Blanchette, Roberta L. Farrell, Duncan, Shona Margaret, Jackie Aislabie, Shona Duncan, Aislabie, Jackie M.   +11 more
core   +1 more source