نتایج جستجو برای: nanocatalyst mto
تعداد نتایج: 1338 فیلتر نتایج به سال:
the thermodynamic of the known and very effective catalytic system, hydrogen peroxide (h2o2) and methyltrioxorhenium (mto) is studied in different solvents using uv-visible spectroscopic method. the thermodynamic parameters (δg, δh and δs) for two equilibrium reactions, mto + h2o2 ⇌ a + h2o and a + h2o2 ⇌ b.h2o (a, [mere(o)2(o2)]; b.h2o, [mere(oh2)(o)(o2)2]), are determined. the obtained free e...
In small-pore zeolite catalysts, where the size of the pores is limited by eight-ring windows, aromatic hydrocarbon pool molecules that are formed inside the zeolite during the Methanol-to-Olefins (MTO) process cannot exit the pores and are retained inside the catalyst. Hydrocarbon species whose size is comparable to the size of the zeolite cage can cause the zeolite lattice to expand during th...
The aim of this study was to determine the acute and chronic effects of low doses of long chain (LC) n-3 polyunsaturated fatty acids (PUFA) (<100 mg per day) on plasma LC n-3 PUFA levels using a novel delivery form; bread containing microencapsulated tuna oil (MTO). Six omnivores (three men and three women) participated in the acute study, which involved ingesting a prototype MTO bread containi...
Survey nonresponse and attrition undermine the validity of many and possibly most econometric estimates. In this paper, we discuss simple methods for assessing the nature of the damage caused by such problems. A fundamental component of the methods we discuss is partial randomization of non–response. We evaluate the performance of simple grouped data estimators for sample selection (a là Gronau...
We study adult economic and health outcomes in the Moving to Opportunity (MTO) demonstration, a randomized housing mobility experiment in which families living in highpoverty U.S. public housing projects in five cities were given vouchers to help them move to private housing units in lower-poverty neighborhoods. An “experimental” group was offered vouchers valid only in a low-poverty neighborho...
As the use of pesticides in agriculture is increasing at an alarming rate, food contamination by pesticide residues becoming a huge global problem. It essential to develop sensitive and user-friendly sensor device quantify trace levels herbicide samples. Herein, we report electrocatalyst made up yttrium iron garnet (Y3Fe5O12; YIG) graphitic carbon nitride (GCN) attain picomolar-level detection ...
Mesoporous silica grafted with a tertiary amine was used as a basic nanocatalyst to promote in confined medium the enantioselective cascade rearrangement of enediynes based on the phenomenon of memory of chirality; the multi-substrates recyclable catalytic reagent could easily be recovered by simple filtration, and reused without any decrease in activity even when changing the solvent.
The Moving to Opportunity (MTO) experiment was a housing mobility program begun in the mid-nineties that relocated volunteer low income families from public housing to rental units in higher opportunity neighborhoods in 5 US cities, using the Section 8 affordable housing voucher program. Compared to the control group who stayed behind in public housing, the MTO voucher group exhibited a harmful...
Order Acceptance and Scheduling at a Make-to-Order System Using Revenue Management. (August 2006) Anshu Jalora, B.Tech., Indian Institute of Technology, New Delhi, India; M.E., Texas A&M University Chair of Advisory Committee: Brett A. Peters Make-to-order (MTO) systems have been traditionally popular in manufacturing industries that either seek to provide greater variety to their customers or ...
Heterogeneous selective hydrogenation of ethylene carbonate (EC), a key step in indirect conversion of CO2, was realized over a copper chromite nanocatalyst prepared via a hydrothermal method followed by calcination. The selectivities towards methanol (60%) and ethylene glycol (93%) were higher than those achieved over other usual hydrogenation catalysts.
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