نتایج جستجو برای: thermal initiators
تعداد نتایج: 219212 فیلتر نتایج به سال:
Goal: Influencing the society and changing the crowd behavior through microscopic social interactions Application: • Marketing: Viral marketing, face to face advertisement in a social network • Political science: Electoral campaigns • Social science: control of crowd movements Investigated Problems so far: Find the k most influential persons (K-MIP) of a society (also called initiators, key pla...
A series of titanium pyridonate complexes have been synthesized under very mild reaction conditions from a common precursor, Ti(NMe2)4. These complexes have been explored as initiators for the ring-opening polymerization of rac-lactide and ε-caprolactone and have proven to be competitive with leading titanium initiators. Furthermore, these complexes have been shown to be competent initiators fo...
In this study, we propose an extended Watts model to examine the effect of initiators on information cascades. The assumes that nodes with connections have low adoption thresholds than other nodes, due significant influence initiators. We develop a tree approximation describe active node fraction for in random networks and derive cascade condition global occur small By analyzing window Erdős–Ré...
Abstract Environmental pollution from the use of lead compounds and their adverse effects on employees, users and consumers of ammunitions is a serious problem in the military industries. Primary explosives such as lead azide and lead styphnate are essential portions of initiators and have wide consumption in military industries for producing initiators, tinder and detonators. These leaded com...
OBJECTIVE Meta-analyses of epidemiologic studies have suggested that metformin may reduce cancer incidence, but randomized controlled trials did not support this hypothesis. RESEARCH DESIGN AND METHODS A retrospective cohort study, Clinical Practice Research Datalink, was designed to investigate the association between use of metformin compared with other antidiabetes medications and cancer r...
The migration and transport of polymerization initiators are problematic for commercially used polymerization procedures. For example, UV printing of packaging generates products with potentially harmful components that come in contact with food. Enlarging the size of the initiator is the only way to prevent contamination, e.g., by gas phase transport. In this manuscript, the synthesis and adva...
BACKGROUND To explore any association between the timing of the initiation of sexual activity and sexual behaviors and risks among university students in China. METHODS Data were derived from a cross-sectional study on sexual behavior among university students conducted in Ningbo municipality, China, at the end of 2003. Students completed a self-administered, structured questionnaire. Of 1981...
Non-aqueous microgel particles are commonly synthesised in water, dried, and then redispersed in non-aqueous solvents. An important factor to consider when synthesising such particles is the initiator, which can determine how well the particles disperse in solvents. Polystyrene microgel particles were made with three different initiators. When a neutral, oil soluble initiator (azobisisobutyroni...
in this project, some new polyaspartimides, (pas)s, have been synthesized form michael addition reaction between new synthetic bismaleimide (bmi) and some aromatic diamines. a characteristic property of this polyaspartimides is a pendent carboxylic group, which introduced to these polymers from new bismaleimide. bismaleimides (bmi) is one of the interesting compounds, which can be self-polymeri...
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