In this paper we show that every real-time system speciied in a certain subset of Duration Calculus 24] can be decomposed into an untimed system communicating with suitable timers. Both asynchronous and synchronous communication are considered.

enzymatic deinking has been suggested as an environmentally friendly alternative to complement and replace for conventional chemical deinking. in the present research, the effect of hemicellulase from aspergillus niger has been evaluated on paper quality of mixed 70% old newspaper (onp) and 30% old magazine (omg) pulp. hemicellulose was used at different charges of 0.1 (h1), 0.2 (h2), 0.5 (h3) ...

Exclusive breastfeeding was studied among 506 infants in Uppsala, Sweden, based on daily recordings during the first 6 mo. The mothers had previously breastfed at least one infant for at least 4 mo. Most of the mothers considered that they breastfed on demand. Wide variations in breastfeeding frequency and suckling duration were found both between different infants and in the individual infant ...

The produced water-containing polymer brings new challenges to oil-water separation in oilfield production, yet separators with coalescing plates remove free water have been playing an active role. In this paper, the flow-field characteristics of polymer-laden a separator are analyzed using computerized mathematical methods investigate effects content 55%, 70%, and 85%, flow rate 3500 m3/d, 480...

Background: Anesthesia duration can play a significant role in post-operative complications. Therefore, the present study investigated the effect of auditory sensory stimulation with a familiar voice on anesthesia return in patients undergoing rhinoplasty. Methods: This study was performed on 80 patients who were candidates for rhinoplasty surgery in Yazd Trauma and Burn Hospital from Septembe...

Background: In this research, the decomposition of Aroclor 1254, including 20 kinds of poly chlorinated biphenyls (PCBs), in real waste transformer oil in the presence of PEG1000, NaOH, zero valent iron and H2O by microwave (MW) irradiation was studied. Methods: Central composites design (CCD) method was carried out for experimental design. The effects of microwave power levels (200- 1000 W), ...

BACKGROUND It is well established that the work rate increment size affects the duration of test and physiological responses to exercise during cycling in patients with COPD. However, this has never been tested for incremental step tests. OBJECTIVE To compare the exercise tolerance time, cardiopulmonary stress, and perception of effort between the Chester step test (CST) and a modified incre...

Sesame (Sesamum indicum L.) seed and oil have long been used widely as healthy foods to supply energy and prevent aging. Some of the main active anti-oxidative constituents in sesame seeds are γ-tocopherol and phenols. The purpose of this study was to investigate the relationship between roasting temperature and time with γ-tocopherol and total phenolic compounds (TPC) of sesame seeds when roas...

The influence of increasing the dosage of ketamine on anaesthesia induced by a combination of ketamine, xylazine and midazolam in pigs was determined by assessing the onset of action (OAN), duration of analgesia (DAN), anaesthesia time (ANT), and recovery time (RCT) in 10 growing pigs (Mean weight: 18.2 +/- 1.65 kg) receiving either 10 mg/kg intramuscular (i.m.) injection of 10% ketamine, 2 mg/...