نتایج جستجو برای: carbon sources

تعداد نتایج: 556586  

Journal: :Chemical communications 2012
Tetsuaki Fujihara Tomoya Hosoki Yuko Katafuchi Tomohiro Iwai Jun Terao Yasushi Tsuji

Aryl formates are efficient carbon monoxide sources in palladium-catalyzed esterification of aryl halides. The carbonylation readily proceeds at ambient pressure without the use of external carbon monoxide to afford the corresponding esters in high yields.

Ali Asghar Alamolhoda Hossein Arfaeinia Majid Kermani, Seyed Enayat Hashemi

In the present study, carbon species including organic carbon (OC), elemental carbon (EC), and water-soluble organic carbon (WSOC) concentration in PM2.5 were assessed at an urban site of Tehran, Iran during March to June 2014. The PM2.5 samples were collected using an frmOMNITM Ambient Air Sampler. Thermal gravimetric analysis (TGA) was used to analyze OC and EC. The results showed that PM2.5 ...

Journal: :Chemical communications 2006
Lin-Bao Luo Shu-Hong Yu Hai-Sheng Qian Jun-Yan Gong

A facile green chemistry carbonization method has been discovered for the synthesis of uniform silver@carbon rich composite (carbon and cross-linked polyvinyl alcohol) core-shell sub-microcables in large quantities, where the carbon sources such as glucose-based saccharides have played important roles in the formation of these novel sub-microcables.

In the present study, carbon species including organic carbon (OC), elemental carbon (EC), and water-soluble organic carbon (WSOC) concentration in PM2.5 were assessed at an urban site of Tehran, Iran during March to June 2014. The PM2.5 samples were collected using an frmOMNITM Ambient Air Sampler. Thermal gravimetric analysis (TGA) was used to analyze OC and EC. The results showed that PM2.5 ...

بذرافشان, ادریس, بیگلری, حامد, جنیدی جعفری, احمد, کرد مصطفی‌پور, فردوس,

Background and Aim: Nowadays, regarding the increased human and geological activities, concentrations of toxic and carcinogenic disinfectant by-products– like Trihalomethanes -which have an organic base, in drinking water sources, has worryingly increased. Thus, the present study aimed at surveying the amount of dissolved organic carbon (doc) removed from aqueous solution by Fenton process. Mat...

2017
J. Morris V. Srikrishnan Jennifer F. Morris Vivek Srikrishnan John M. Reilly

Given uncertainty in long-term carbon reduction goals, how much non-carbon generation should be developed in the near-term? This research investigates the optimal balance between the risk of overinvesting in non-carbon sources that are ultimately not needed and the risk of underinvesting in non-carbon sources and subsequently needing to reduce carbon emissions dramatically. We employ a novel fr...

حسین زاده, ادریس, رحمانی, علیرضا, روشنایی, قدرت‌الهد, زارع, محمدرضا, صمدی, محمدتقی, عسگری, قربان,

  Background and Aim: Heavy metals have been recognized as very poisonous elements and their discharge into water sources can cause damaging effects on human and environmental health. The present study aimed at producing activated carbon from scrap tires and using it in removing Pb+2 from synthetic aqueous solutions.   Materials and Methods: In this experimental study, activated carbon p...

2006
Natalie M. Mahowald Daniel R. Muhs Samuel Levis Philip J. Rasch Masaru Yoshioka Charles S. Zender Chao Luo

[1] Desert dust simulations generated by the National Center for Atmospheric Research’s Community Climate System Model for the current climate are shown to be consistent with present day satellite and deposition data. The response of the dust cycle to last glacial maximum, preindustrial, modern, and doubled-carbon dioxide climates is analyzed. Only natural (non-land use related) dust sources ar...

2017
Alfonso Benítez-Páez Eva M. Gómez del Pulgar Yolanda Sanz

Bacteroides spp. are dominant components of the phylum Bacteroidetes in the gut microbiota and prosper in glycan enriched environments. However, knowledge of the machinery of specific species isolated from humans (like Bacteroides uniformis) contributing to the utilization of dietary and endogenous sources of glycans and their byproducts is limited. We have used the cutting-edge nanopore-based ...

Journal: :Journal of the Air & Waste Management Association 2015
Rodney Bryant Matthew Bundy Ruowen Zong

UNLABELLED A natural gas burner has been used as a precise and accurate source for generating large quantities of carbon dioxide (CO2) to evaluate emissions measurements at near-industrial scale. Two methods for determining carbon dioxide emissions from stationary sources are considered here: predicting emissions based on fuel consumption measurements-predicted emissions measurements, and direc...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید