Results 41 to 50 of about 503,982 (356)

Carbon and oxygen stable isotope record of upper Kimmeridgian shallow-marine ramp carbonates (Iberian Basin, NE Spain): the imprint of different burial and tectonic histories

Geologica Acta, 2021
Bulk carbon and oxygen stable isotopes of ancient shallow-marine carbonates can record the effects of multiple palaeoenvironmental factors, but also the imprint of several post-depositional processes, which may alter the original marine isotopic ...
Cristina Sequero, Giovanna Della Porta, Beatriz Bádenas, Marcos Aurell   +3 more
doaj   +1 more source

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

Advanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park, Kyounglim Kim, Jinyoung Lee, Sarang Kim, Gwangsu Yoon, So Yeon Yoon, Jeong Kyeong Lee, Ji‐Wook Jang, Tae‐Hyuk Kwon   +8 more
wiley   +1 more source

Sedimentary environment analysis of the Asmari Formation (Upper Rupelian) based on microfossils in Bandar Abbas Hinterland, south Iran [PDF]

Journal of Stratigraphy and Sedimentology Researches
In this research, facies distribution and sedimentary environment of the Asmari Formation have been studied in Bandar Abbas Hinterland, located in southern Iran.
Jahanbakhsh Daneshian, Mahboobeh Sadat Tabatabaei, Alireza Tahmasbi   +2 more
doaj   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

A Large Cenomanian Carbonate Ramp at the Transition Between Two Domains of the Zagros Sedimentary Basin, SW Iran: Cyclic Evolution and Its Eustatic and Tectonic Controls

Journal of Marine Science and Engineering
Carbonate sedimentation was spread widely on the southern margin of the Neo-Tethys Ocean in the mid-Cretaceous. New information from four exploration wells sheds light on the peculiarities of the Sarvak Formation (late Albian–Cenomanian) at the narrow ...
Fatemeh Moradi-Doreh, Tahereh Habibi, Dmitry A. Ruban, Rohollah Hosseinzadeh   +3 more
doaj   +1 more source

Early Eocene evolution of carbonate depositional environments recorded in the Čikola Canyon (North Dalmatian Foreland Basin, Croatia)

Geologia Croatica, 2017
The stratigraphic succession in the Čikola Canyon (part of the North Dalmatian Foreland Basin) was studied in detail to describe both the sedimentological characteristics and fossil assemblages of the Lower Eocene deposits during the initial stage of ...
Jelena Španiček, Vlasta Ćosović, Ervin Mrinjek, Igor Vlahović   +3 more
doaj   +1 more source

Effect of ramp bicycle exercise on exhaled carbon monoxide in humans

The Journal of Physiological Sciences, 2011
The effect of exercise on the increase of exhaled CO in smokers compared to non-smokers has not been clarified yet. In this study we compared the dynamics of exhaled CO before, during and after exercise between smokers and non-smokers. A group of 8 smokers and a group of 8 non-smokers underwent a bicycle exercise in a ramp fashion to near maximum ...
Yoshifumi, Yasuda, Tomonori, Ito, Miharu, Miyamura, Masatsugu, Niwayama   +3 more
openaire   +2 more sources

Impact of Stratigraphic and Sedimentological Heterogeneity on Hydrocarbon Recovery in Carbonate Reservoirs [PDF]

, 2011
Imperial Users ...
Beigi, Hossin Mohammad, Beigi, Hossin Mohammad   +1 more
core  

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

MICROFACIES AND DEPOSITIONAL ENVIRONMENT OF MISHRIF FORMATION, NORTH RUMAILA OILFIELD, SOUTHERN IRAQ

Iraqi Geological Journal, 2019
Mishrif Formation is one of the main oil reservoirs in southern Iraq. This study analyzes the microfacies and depositional environment for Mishrif Formation in North Rumaila oilfield. The study was based on the analysis of 17 wells core.
Muslim M. Al-Ali, Maher M. Mahdi, Rasha A. Alali   +2 more
doaj   +1 more source