Results 21 to 30 of about 1,624 (221)

Modulare Synthese von strukturell diversen polyzyklischen aromatischen Kohlenwasserstoffen mit eingebetteten Azulenen durch Knoevenagelartige Kondensation

open access: yesAngewandte Chemie, Volume 135, Issue 21, May 15, 2023., 2023
Eine effiziente und modulare Synthesestrategie für die Konstruktion von neuen azuleneingebetteten PAKs mit guter struktureller Diversität wurde entwickelt. Die Beziehungen zwischen chemischer Struktur, Aromatizität und photophysischen Eigenschaften der dargestellten nicht‐alternierenden PAKs wurden vollständig untersucht.
Renxiang Liu   +8 more
wiley   +1 more source

Measurement of anthropogenic and biogenic hydrocarbons

open access: yesMeteorologische Zeitschrift, 1998
Ambient air concentrations of up to 12 different hydrocarbons were measured every hour at two locations south of Munich in summer 1996 using a GC system.
Peter Steil, Bernhard Luksch
doaj   +1 more source

The Effects of Sourdough, Bakery Yeast, and Sodium Bicarbonate in the Production of Volatile and Aromatic Compounds in three Types of Traditional Iranian Bread [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2023
Lavash, taftoon, and barbari breads are the favorite bread of Iranian people. There are various methods to process dough for bread production. In many parts of the world, dried active yeast (Saccharomyces Cerevisiae), sourdough, and chemical agents are ...
Mahboubeh Sadat Zolfaghari   +2 more
doaj   +1 more source

Bazı Odun Kabuklarının Kimyasal Analizi

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2016
Önemli bir biokütle kaynağı olan ağaç kabuklarının kimyasal yapısı çeşitlilik göstermektedir. Bu çalışmada üç farklı ağaç kabuğunun kimyasal bileşenleri incelenmiştir.
Sefa DURMAZ   +3 more
doaj   +6 more sources

Quasi-continuous measurements of hydrocarbon immissions

open access: yesMeteorologische Zeitschrift, 1994
Within the framework of the research programme titled "Air pollution and human health" the Lehrstuhl für Bioklimatologie und Immissionsforschung (LfBIM) is responsible for the subproject "Measurements of various hydrocarbons being precursors for ...
B. Rappenglück
doaj   +1 more source

Protective effect of Atriplex halimus extract against benzene-induced haematotoxicity in rats [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2021
Benzen (BZ) is a ubiquitous environmental pollutant with a toxic effect mainly aimed at the hematopoietic­ and immune systems. Atriplex halimus L. (Amaranthaceae) is a Mediterranean halophytic shrub traditionally used in North Africa as medicinal plant ...
K. Zeghib   +3 more
doaj   +1 more source

Manfaat Surfaktan dalam Proses Pewarnaan Tekstil

open access: yesJurnal Kimia Sains dan Aplikasi, 2003
ABS (Alkil Benzen Sulfonat) telah digunakan dalam proses pewarnaan serat poliester dengan zat warna dispersi. ABS berfungsi untuk membantu penyebaran zat warna pada serat sehingga dihasilkan warna yang merata pada kain.Prinsip yang digunakan pada proses ...
Arnelli Arnelli, Wahyu Widi Nugraheni
doaj   +1 more source

Synthesis, characterization and biological studies complexes of Co(II), Ni(II), Cu(II) and Cd(II) with 5-(2-pyridyl)-2-(3,5-dinitro benzen)-1,3,4- oxadiazole ligand on McCoy cell [PDF]

open access: yesشیمی کاربردی روز, 2011
In this research we report new complexes with the formula 5-(2-pyridyl)-2-(3,5-dinitro benzen)-1,3,4- oxadiazole ligand with Co(II), Ni(II), Cu(II) and Cd(II). These complexes were synthesized and characterized by IR spectroscopy, electronic spectroscopy,
Abolfazl Bezaatpour   +4 more
doaj   +1 more source

Mechanically induced transformations in silicon [PDF]

open access: yesActa Montanistica Slovaca, 1997
V práci sa študujú zmeny ve¾kosti èastíc a štruktúry kremíka pri vibraènom a planetárnom mletí vo vzduchu a v kvapalinách rôznej permitivity (metanol, acetón a benzén).
Tkáèová Klára   +2 more
doaj  

Sintesis Turunan Azomethin Sebagai Zat Aktif Inhibitor Korosi pada Logam Menggunakan Bahan Dasar Piperonal dan 2-Aminopiridin

open access: yesJurnal Kimia Sains dan Aplikasi, 2017
Sintesis senyawa turunan azomethin dilakukan melalui reaksi kondensasi antara piperonal dan 2-aminopiridin dengan variasi pelarut toluen, benzen, etanol selama 3 jam.
Intan Endah Rachmawati   +2 more
doaj   +1 more source

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