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3-Dimensional fibrous mats is open structure with sinuously looped and self-bonded macronlaments and they have been used for the purpose of erosion control, embankment protection. Canal construction and sports complex antral so forth. Since transverse strength and porosity of the fibrous mats are very important properties, many observations on these increase have been studied. In the present work, 3-Dimensional fibrous mats are made with continuous melt-spun polypropylene(PP) macrofilament for different processing parameters with a newly designed melt-spinning system. The characteristics of these process are found that PP macrofilaments are spun toward the pattern roller with frequency roller to increase the strength of fibrous mats and to form interlooped filaments adhering to each other at random overlapping points of intersection. And we evaluate the erect of processing collditions i. e., spinning distance(b/w nozzle and pattern roller). take-up speed and frequency speed on the structure and properties of mats.
Seizures are a frequent symptom in metabolic disorders, although metabolic disorders are rarely found to be the cause of epilepsy. A precise diagnosis might not only influence treatment, but it might also call for counseling of the family, even if there are no direct therapeutic consequences. We review the main characteristics of epilepsy in metabolic disorders with regard to energy metabolism, toxic effects, neurotransmitters, and vitamins.
Mitochondrial disorders are rare metabolic diseases. They often present during neonatal period but with nonspecific clinical features such as feeding difficulties, failure to thrive, and seizures. Mitochondrial defects have also known to be associated with neurological disorders, as well as cancers. We report the first case of neonatal mitochondrial respiratory chain defect with sarcoma botryoides confirmed by pathologic diagnosis, suggesting another possible link between mitochondrial dysfunction and cancer.
There are few reports on aggravation of asthma by mint flavor although it is a common ingredient of many products. A 40-year-old male patient with aspirin-sensitive asthma experienced anaphylaxis after using a gargle that contained mint flavor. Skin prick tests and ELISA for serum specific IgE to mint showed negative responses. Challenge tests with mint oil and menthol were positive and the immediate bronchoconstriction was completely inhibited by premedication with cromolyn sodium. These findings suggest that mast cells may be involved in the pathogenesis of mint-induced asthma or anaphylaxis. To our knowledge, this is the first case of mint-induced anaphylaxis. It is important to alert physicians to the possibility of aggravation of asthmatic symptoms or the development of anaphylaxis by mint flavor.
Appreciable numbers of aspirin-sensitive asthmatic patients have chronic severe asthmatic symptoms. We report two cases of aspirin-sensitive asthmatics with mild asthmatic symptoms, whose methacholine PC_20 levels were 9.07 and 7.06㎎/ml at first visit. The aspirin sensitivity was confirmed by lysine-aspirin bronchoprovocation at initial diagnosis. After anti-asthmatic medications and avoidance of salicylate-containing agents, respiratory symptoms, airway hyperresponsiveness, and aspirin sensitivity disappeared after 33 and 45 months. These results suggest that early detection and careful avoidance of salicylate-containing agents may have beneficial effects resulting in resolution of airway hyperresponsiveness and aspirin sensitivity in aspirin-sensitive asthmatic patients.