Organosulfur compounds (OSCs) are naturally emitted via various processes involving phytoplankton and algae in marine regions, from animal metabolism, and from biomass decomposition inland. These compounds are malodorant and reactive. Their oxidation to methanesulfonic and sulfuric acids leads to the formation and growth of atmospheric particles, which are known to influence clouds and climate,...

The lean manufacturing system has helped many companies to improve operational performance, mainly in the automotive and electronic supply chains. Although lean manufacturing revealed to be effective for repetitive systems, some small and medium suppliers, faced with high mix and low volume production, have had difficulty to implement the lean manufacturing. The main objective of this paper is ...

Although non-experimental studies find robust neighborhood effects on adults, such findings have been challenged by results from the Moving to Opportunity (MTO) residential mobility experiment. Using a within-study comparison design, this paper compares experimental and estimates MTO parallel analysis of Panel Study Income Dynamics (PSID). Striking similarities were found between based PSID. No...

A convenient and efficient application of microencapsulated/methylrhenium trioxide (MTO) and MTO/pyridine systems for the selective oxidation of cardanol derivatives is reported. Environmentally friendly and low-cost H2O2 was used as the oxygen atom donor. The catalysts were stable systems for at least five recycling experiments. In the oxidation of C2 alkyl-substituted cardanol derivatives, hi...

Moving to Opportunity (MTO) offered public housing residents the opportunity to move to low-poverty neighborhoods. Several years later, boys in the experimental group fared no better on measures of risk behavior than their control group counterparts, whereas girls in the experimental group engaged in lower-risk behavior than control group girls. The authors explore these differences by analyzin...

"> The effects of templating on the catalytic performance of SAPO-34 catalyst have been investigated in conversion of methanol to olefins. SAPO-34 <span style="font-size: 11pt; color: #000000; font-sty...

A novel and efficient procedure to prepare highly oxidised aryltetralin lignans, such as isopodophyllotoxone and (-)-aristologone derivatives, by oxidation of podophyllotoxin and galbulin with methylrhenium trioxide (MTO) and novel MTO heterogeneous catalysts is reported. It is noteworthy that in the case of isopodophyllotoxone derivatives the functionalisation of the C-4 position of the C-ring...

Ketene (CH2=C=O) has been postulated as a key intermediate for the first olefin production in zeolite-catalyzed chemistry of methanol-to-olefins (MTO) and syngas-to-olefins (STO) processes. The reaction mechanism remains elusive, because short-lived ethenone ketene its derivatives are difficult to detect, which is further complicated by low expected concentration. We report on experimental dete...

Abstract The relevance of a selection organic impurities for the initiation MTO process was quantified in kinetic model comprising 107 elementary steps with ab initio computed reaction barriers (MP2:DFT). This includes representative part autocatalytic olefin cycle as well direct mechanism starting from methanol through CO-mediated C–C bond formation. We find that effect different on evolution ...