http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Sulaiman F. A.,Iyiola O. A.,Anifowoshe T. A.,Sulaiman A. A.,Bello O. K.,Akinyele T. J.,Jimoh A. M.,Maimako R. F.,Otohinoyi D. A.,Osemwegie O. O.,Adeyemi O. S. 경희대학교 융합한의과학연구소 2021 Oriental Pharmacy and Experimental Medicine Vol.21 No.1
The Trypanosoma brucei is the causative agent of African trypanosomiasis, a disease that affects both humans and animals. Chemotherapy which forms the major means of control for the disease has several shortcomings such as limited efficacy and adverse side effects amongst others. Thus, motivating the search for better therapies. In this study, extracts of some tropical plants including the Acacia nilotica, Bombax buonopozense and Khaya senegalensis were evaluated for therapeutic and prophylactic potential in mouse model of experimental trypanosomiasis. Both diminazene aceturate and isometamidium chloride were included as reference drugs. Results showed that T. brucei caused an elevation in rat plasma indirect bilirubin and a reduction in rat plasma albumin and total protein which suggest mild hepatic dysfunction due to experimental infection. Data also revealed that the plant extracts significantly reduced the rat parasite burden both in the prophylaxis and therapeutic treatment groups when compared with the negative drug control. The infection and treatments had no adverse effect on the rat organ and body weights. The infection did not alter the activity of rat plasma ALT, AST and ALP compared with the administered extracts of A. nilotica and B. buonopozense. Further, the plant extracts ameliorated some trypanosomiasisinduced pathologies in treated rats compared with negative drug control. Taken together, findings do not only lend credence to the folkloric use of these plants for medicinal purposes but also suggest these plant extracts have potential to serve as alternative source of anti-parasitic agents particularly for the control of trypanosomiasis
INVESTIGATION OF DEPOSIT FORMATION IN DIRECT-INJECTION SPARK-IGNITION ENGINE POWERED ON SYNGAS
F. Y. HAGOS,A. R. A. AZIZ,S. A. SULAIMAN 한국자동차공학회 2015 International journal of automotive technology Vol.16 No.3
A direct-injection spark-ignition engine was investigated for deposit formation after running on syngas. The study was part of an initiative to substitute fossil derived gaseous fuels with syngas. The fuel injector and spark plug were periodically inspected during the shutdown and the preliminary inspection indicated traces of deposits. As a result, the cylinder head was dismantled and inspected thoroughly after the run. The surface morphology was characterized by FESEM and its elemental contents were evaluated by EDX. Among the components, the spark plug was found to be best suitable for scanning in FESEM and EDX. Tests were conducted on the sides with and without deposit of the spark plug. The results from both sides were compared. No feed marks were formed even at higher magnification at the clean side. However, the side with deposit of the spark plug shows a spongy texture foreign material. Besides, the colour and morphology was different at different locations. Chemical composition was evaluated on atomic and weight percentage. The deposit was found to be iron oxide produced from the decomposition of iron pentacarbonyl contaminant from the storage tank as the result of carbon monoxide reaction with metallic wall of the tank at high pressure storage.