Results 21 to 30 of about 9,076 (227)

Selective Transfer Hydrogenation of Furfural to Isopropyl Levulinate: An In Situ One‐Pot Cascade Approach [PDF]

ChemSusChem
In this article, we applied a combination of metal (0.5 mol%) and acid (1 mol%) that functioned harmoniously to selectively convert a bio‐based starting material, furfural, into small oxygenates. We used a transfer hydrogenation reaction with isopropanol acting as both the reducing agent and the reaction medium. Isopropyl levulinate, a key intermediate
Subramaniyan S, Hering‐Junghans C, Baráth E.   +2 more
europepmc   +2 more sources

Lateral Marsh Edge Erosion as a Source of Sediments for Vertical Marsh Accretion [PDF]

, 2018
With sea level rise accelerating and sediment inputs to the coast declining worldwide, there is concern that tidal wetlands will drown. To better understand this concern, sources of sediment contributing to marsh elevation gain were computed for Plum ...
Barbier, Bauer, Blum, Blum, Cahoon, Cavatorta, Claessens, Cook, Costanza, Day, Day, Dhillon, Donnelly, Donnelly, Engelhart, Eyre, Fagherazzi, Fagherazzi, Foley, Forbrich, French, Ganju, Ganju, Geyer, Gittman, Gosselink, Hayden, Hein, Hobbs, Hopkinson, Hughes, Kirwan, Kirwan, Kirwan, Koch, Lane, Leonardi, Leonardi, Leonardi, Levin, Magirl, Marcus, Mariotti, Mariotti, Mariotti, Mattheus, McGeehin, McKee, Meade, Meade, Megonigal, Millette, Milliman, Mineau, Morris, Morris, Morris, Morris, Morris, Mudd, Pasternack, Pavich, Priestas, Rahmstorf, Raymond, Redfield, Redfield, Redfield, Reed, Rovere, Schmidt, Schwimmer, Sholkovitz, Stuiver, Swales, Syvitski, Townsend, Trimble, Vallino, Vallino, Walsh, Warrick, Warrick, Watson, Weston, Wilson, Wollheim, Wollheim, Worm, Yarbro, Zhao   +90 more
core   +3 more sources

Психічне насильство проти особи як кримінальне правопорушення та його негативні наслідки

Науковий вісник Ужгородського національного університету. Серія Право, 2023
В статті наголошено, що у всій історії людства проблема насильства над особою була і є однією з актуальних. Вона до цього часу знаходиться у центрі уваги як політики, філософії, права, соціології, психології та інших наук.
O.M. Humin
doaj   +1 more source

APLIKASI HUMIN PADA PROSES ADSORPSI REDUKTIF AuCl₄ˉ DI BAWAH PENGARUH SINAR UV

Jurnal Sains dan Teknologi, 2017
Telah dilakukan proses adsorpsi reduktif larutan AuCl₄ˉ menggunakan humin di bawah pengaruh sinar UV. Humin diisolasi dari tanah gambut Kalimantan Selatan, Indonesia, menggunakan metode yang diadopsi dari International Humic substances Society (IHSS ...
Lutfia Isna Ardhayanti
doaj   +1 more source

Radiocarbon dating of Fugendake Volcano in Unzen, SW Japan [PDF]

, 2013
This article presents new radiocarbon ages for the lavas, pyroclastic flow, and lahar deposits that originated from the Fugendake and Mayuyama volcanoes of the Younger Unzen Volcano, SW Japan.
Freeman, Stewart P.H.T., Hoshizumi, Hideo, Uto, Kozo, Xu, Sheng   +3 more
core   +1 more source

Sorption Mechanism and Performance of Peat Soil Humin for Methylene Blue and p-Nitrophenol

Indonesian Journal of Chemistry, 2019
The responsible mechanism and performance of peat soil humin for the sorption of methylene blue (MB) and p-nitrophenol (p-NP) have been investigated. Humin was obtained from peat soil of Siantan, West Kalimantan, Indonesia, after removing the content of ...
Sri Juari Santosa, Eko Sri Kunarti, Nurul Hidayat Aprilita, Beti Wulandari, Dhian Nuri Bawani   +4 more
doaj   +1 more source

Effect of Adsorption of Metal Elements Ni and V on the Structure of Humin

Yankuang ceshi, 2023
BACKGROUNDBlack shales are mostly developed in special periods in geological history. They not only record the evolution characteristics of paleoenvironment, paleoclimate and paleontology, but also are carriers of organic matter, oil and gas and various ...
Yin YU, Peng XIA, Yi ZHONG, Shitan NING, Ke WANG, Jianping CHENG   +5 more
doaj   +1 more source

Possible role of organic matter in radiocaesium adsorption in soils [PDF]

, 2002
The aim of this review is to examine the hypothesis that organic matter decreases the adsorption of radiocaesium on clay minerals. The factors that determine radiocaesium mobility and bioavailability in soil are briefly outlined to show why a ...
Dumat, Camille, Staunton, S., Zsolnay, A.   +2 more
core   +3 more sources

Reflectance spectroscopy in the prediction of soil organic carbon associated with humic substances [PDF]

Revista Brasileira de Ciência do Solo, 2023
Understanding organic carbon and predominant humic fractions in the soil allows contributes to soil quality management. Conventional fractionation techniques require time, excessive sampling, and high maintenance costs.
Sharon Gomes Ribeiro, Marcio Regys Rabelo de Oliveira, Letícia Machado Lopes, Mirian Cristina Gomes Costa, Raul Shiso Toma, Isabel Cristina da Silva Araújo, Luis Clenio Jario Moreira, Adunias dos Santos Teixeira   +7 more
doaj   +1 more source

Sulfonated sporopollenin as an efficient and recyclable heterogeneous catalyst for dehydration of D-xylose and xylan into furfural [PDF]

, 2016
The natural acidity of sporopollenin, the biopolymer coating the outer walls of pollen grains, was enhanced by the sulfonation of its surface. Modified sporopollenin displaying sulfonic acid groups has been prepared, characterized by elemental analysis ...
Boa, Andrew N., Ceballos, Claire, Delbecq, Frederic, Diego Taboada, Alberto, Huang, Youkui, Len, Christophe, Len, Thomas, Mackenzie, Grahame, Wang, Yantao   +8 more
core   +2 more sources