In the present investigation we have studied the peristaltic flow of a nanofluid in an endoscope. The flow is investigated in a wave frame of reference moving with velocity of the wave c. Analytical solutions have bee...In the present investigation we have studied the peristaltic flow of a nanofluid in an endoscope. The flow is investigated in a wave frame of reference moving with velocity of the wave c. Analytical solutions have been calculated using Homotopy perturbation method (HPM) for temperature and nanoparticle equation while exact solutions have been calculated for velocity and pressure gradient. Numerical integration have been used to obtain the graphical results for pressure rise and frictional forces. The effects of various emerging parameters are investigated for five different peristaltic waves. Streamlines have been plotted at the end of the article.展开更多
Plant species in the genus Plumeria of Apocynaceae family are well known for their uses in traditional medicine antimicrobial activity. Plant materials from P. alba were extracted using Soxhlet apparatus and screened ...Plant species in the genus Plumeria of Apocynaceae family are well known for their uses in traditional medicine antimicrobial activity. Plant materials from P. alba were extracted using Soxhlet apparatus and screened for the control of anthracnose disease caused by Colletotrichum gleosporoides on fruit during post harvest storage. For in vitro, the crude extract of P. alba (stem bark and leaves) were completely inhibited conidial germination (sporulation test method) of Colletotrichum gleosporoides at all concentration tested except the lowest concentration (4.4 uL). In vivo studies show that percentage of infection on fruit after treated with both stem bark (11.11 ± 3.8) and leaves (15.55 ± 3.8) part, at 32,000 mg/L have no significant differences during seven days of storage at ambient temperatures. These results proved that P. alba extracted (stem bark and leaves) were found to be promising as an antifungal agent and to control anthracnose disease in fruits tested.展开更多
In order to measure the position and orientation of in-vivo medical micro-devices without the line-of- sight constraints, a wireless magnetic sensor is developed for an electromagnetic localization method. In the elec...In order to measure the position and orientation of in-vivo medical micro-devices without the line-of- sight constraints, a wireless magnetic sensor is developed for an electromagnetic localization method. In the electromagnetic localization system, the wireless magnetic sensor is embedded in the micro-devices to measure alternating magnetic signals. The wireless magnetic sensor is composed of an induction coil, a signal processor, a radio frequency (R.F) transmitter, a power manager and batteries. Based on the principle of electromagnetic induction, the induction coil converts the alternating magnetic signals into electrical signals. Via the RF transmitter, the useful data am wirelessly sent outside the body. According to the relation between the magnetic signals and the location, the position and orientation of the micro-devices can be calculated. The experiments demonstrate the feasibility of localizing in-vivo medical micro-devices with the wireless magnetic sensor. The novel localization system is accurate and robust.展开更多
The main question in the current ideological and political education is as followings: backward education concept, inadequate education system, outdated educational content and single teaching methods and so on. Base...The main question in the current ideological and political education is as followings: backward education concept, inadequate education system, outdated educational content and single teaching methods and so on. Based on the requirements for college ideological and political education proposed by "Long-term Education Reform and Development Plan", the article put forward countermeasures and suggestions to strengthen and improve ideological and political education from updating Ideological and Political Education concept, improving ideological and political education mechanism, and enriching ideological and political education.展开更多
基金the Higer Education Commission of Pakistan for providing research grant
文摘In the present investigation we have studied the peristaltic flow of a nanofluid in an endoscope. The flow is investigated in a wave frame of reference moving with velocity of the wave c. Analytical solutions have been calculated using Homotopy perturbation method (HPM) for temperature and nanoparticle equation while exact solutions have been calculated for velocity and pressure gradient. Numerical integration have been used to obtain the graphical results for pressure rise and frictional forces. The effects of various emerging parameters are investigated for five different peristaltic waves. Streamlines have been plotted at the end of the article.
文摘Plant species in the genus Plumeria of Apocynaceae family are well known for their uses in traditional medicine antimicrobial activity. Plant materials from P. alba were extracted using Soxhlet apparatus and screened for the control of anthracnose disease caused by Colletotrichum gleosporoides on fruit during post harvest storage. For in vitro, the crude extract of P. alba (stem bark and leaves) were completely inhibited conidial germination (sporulation test method) of Colletotrichum gleosporoides at all concentration tested except the lowest concentration (4.4 uL). In vivo studies show that percentage of infection on fruit after treated with both stem bark (11.11 ± 3.8) and leaves (15.55 ± 3.8) part, at 32,000 mg/L have no significant differences during seven days of storage at ambient temperatures. These results proved that P. alba extracted (stem bark and leaves) were found to be promising as an antifungal agent and to control anthracnose disease in fruits tested.
基金Sup.ported by the High TechnologyResearch and Development Programme of China (No.2006AA04Z368), the National Natural Science Foundation of China (No. 30900320, 30570485) and Innovation Program of Shanghai Municipal Education Commission (No. 10YZ93).
文摘In order to measure the position and orientation of in-vivo medical micro-devices without the line-of- sight constraints, a wireless magnetic sensor is developed for an electromagnetic localization method. In the electromagnetic localization system, the wireless magnetic sensor is embedded in the micro-devices to measure alternating magnetic signals. The wireless magnetic sensor is composed of an induction coil, a signal processor, a radio frequency (R.F) transmitter, a power manager and batteries. Based on the principle of electromagnetic induction, the induction coil converts the alternating magnetic signals into electrical signals. Via the RF transmitter, the useful data am wirelessly sent outside the body. According to the relation between the magnetic signals and the location, the position and orientation of the micro-devices can be calculated. The experiments demonstrate the feasibility of localizing in-vivo medical micro-devices with the wireless magnetic sensor. The novel localization system is accurate and robust.
文摘The main question in the current ideological and political education is as followings: backward education concept, inadequate education system, outdated educational content and single teaching methods and so on. Based on the requirements for college ideological and political education proposed by "Long-term Education Reform and Development Plan", the article put forward countermeasures and suggestions to strengthen and improve ideological and political education from updating Ideological and Political Education concept, improving ideological and political education mechanism, and enriching ideological and political education.