A fluidized bed system combining two circulating fluidized bed reactors is proposed and investigated for chemical looping combustion using metal oxides as oxygen carriers. The global solids loop starts in one of the two reactors (primary reactor) where solids are entrained, separated from the gas in a cyclone and sent to the other reactor (secondary reactor) via a fluidized loop seal. From the ...

The neutron yield in a D-He reactor is much lower than that in a D-T reactor of equivalent power. Therefore, the rate of neutron damage and gas production in the first wall of D-He reactors is lower by more than an order of magnitude. Whereas different structural materials proposed for use in commercial fusion reactors will last the reactor lifetime of 30 full power years in a D-He reactor, fre...

BACKGROUND Older adults with dementia commonly exhibit agitated behavior that puts them at risk of injury and institutionalization and is associated with caregiver stress. A range of theoretical approaches has produced numerous interventions to manage these behavior problems. This paper critically reviews the empirical literature on behavioral interventions to reduce agitation in older adults w...

STUDY OBJECTIVE To compare two related pharmacological agents used for the chemical restraint of agitated and combative patients. DESIGN AND SETTING A randomized, double-blind, prospective study was carried out in patients requiring physical restraint in a university hospital emergency department. PARTICIPANTS Sixty-eight violent or agitated adult patients whom the attending physician belie...

Reactor control and safety systems are discussed with emphasis on safety considerations. Consideration is given to the importance of reactor characteristics, control and safety system characteristics, the operational program of the reactor, and credible accidents, in a determination of safety of operation. Ecperience with research reactor control and safety systems has led to the development of...

A N 85-YEAR-OLD WOMAN WITH MULTIPLE medical problems, including dementia, coronary artery disease, renal insufficiency, and peripheral vascular disease, was admitted to our hospital with urosepsis. Her hospital course was complicated by the development of dry gangrene of her left foot, Candida sepsis, Clostridium difficile enterocolitis, and multiple deep sacral and trochanteric pressure ulcers...

BACKGROUND There have not been any reports in Japan clarifying the efficacy and safety of intramuscular (IM) olanzapine and IM levomepromazine in agitated elderly patients with schizophrenia. This study was a comparative investigation of the clinical efficacy and safety of IM olanzapine and IM levomepromazine in agitated elderly patients with schizophrenia at 2 hours post-dose. METHODS The su...