Nine pathogenic fungi of waterhyacinth isolated in China

The native pathogens of waterhyacinth in China, were studied and compared on pathogenicity by Koch＇s postulate. Nine pathogenic fungi, YBH, YBB, YB, YYX, YY, YBA1, YBA2, YBA3 and YYB12, were isolated from diseased waterhyacinth plants, and collected from Zhejiang province and Shanghai. According to cultural characteristics, the nine isolates were preliminarily identified. Isolates YBH and YBB were Collectotrichum sp.; YB, YYX and YY were placed in fungi imperfecti; the isolates YBA1, YBA2, YBA3 and YYB12 were Alternaria sp. The isolate YBH was the highly virulent with a disease index （DI） of 65.28% after one month inoculation. The isolate YBA3 was equily virulent, with the disease index of 6770 after 7 day introduction. These two pathogens appear to have the potential as biocontrol agents and they deserve further study.     

激光处理对铝基体上Ni-P合金镀层性能的影响

用Nd-YAG脉冲激光处理铝合金基体上化学镀的Ni-P合金镀层。与未处理的合金镀层相比,当激光能量密度为0．515CW／m^2时,Ni-P合金镀层的性能有明显提高,表面粗糙度降低而与基体的界面结合力增大,耐腐蚀性能也有显著的提高。     

The effect of prostaglandin E1 on recovery of early renal graft functions after transplantation

Objective To investigate the effect of prostaglandin E: (PGE1) on recovery of early renal graft functions after transplantation. Methods One hundred and seven patients after renal transplantation were allocated in the treated group, and treated by conventional treatment with injection of 10 μg prostaglandin E1 additionally twice a day for 14 days. And eighty-eight patients who received conventional treatment alone after renal transplantation at the corresponding period were allocated in the control group. Indexes of the two groups, including incidence of delayed graft function and acute rejection reaction, volume of urine, serum certaintie (SCr), endogenous certainties clearance rate (CCr), the blood flow resistance in graft as well as blood viscosity (BV), and platelet aggregation rate (PAR), were determined. Results The urinary volume and endogenous certainties clearance rate of the treated group were significantly higher, but the level of SCr, incidence of renal function recovery retardation, BV, PAR and blood flow resistance in graft were significantly lower than these of the control group (P<0.05). The difference of incidence of acute rejection reaction between the two groups was insignificant (P>0.05). Conclusion Prostaglandin E1 can improve blood microcirculation and decrease the incidence of renal function recovery retardation. These effects are helpful for recovery of renal function after renal transplantation.     

高职“航海学”说课探讨

在明确说课内涵的基础上,从课程目标、课程内容、课程实施、教学方法、学习方法、课程评价等方面探讨高职＂航海学＂说课的主要内容,并指出高职＂航海学＂说课应注意的几个问题。     

用FTP方式实现TADS中测点与节点之间数据传输

以铁路车号自动识别系统中多个AEI的应用需求为背景,引入了一种具有通用性的通信连接方法,利用CAN总线实现CPS与多个AEI的实时通信。对CAN总线优点进行了说明,介绍了通信实现的硬件结构和通信中使用的协议格式及涵义。给出了通信的总体流程图和程序实现的关键代码说明以及程序实现中应该注意的问题。     

汽车流动学校(Mobile School)

在第三世界国家,仍有很多人为饥饿、寒冷所困,对于那些地方的孩子来说,接受教育更是一件奢侈的事。新加坡设计师Victoria Koo为解决发展中国家的儿童教育资源短缺问题,设计了这所流动的学校(Mobile School)。它很像美国的校车,停下来的时候可以是一间简易的教室。这样的流动学校可以把一定区域内的学生接到某块空地一起上课,比起搭建学校来得省时、省力、省钱,并且可以在当地拥有了真正的校舍之后很方便转移到其他地区。     

绽放的“海空之花”

她们用勇气挑战惊涛骇浪,用胆魄在风口浪尖上驾驶直升机拯救生命。她们就是中国救捞系统培养的新一代女救助飞行员——宋寅和万秋雯。交通运输部东海第一救助飞行队,上海高东直升机场。一对姐妹花的出现,改变了这里原本由男人"主宰"的救助直升机飞行世界。她们用勇气挑战惊涛骇浪,用胆魄在风口浪尖上驾驶直升机拯救生命。她们就是中国救捞系统培养的新一代女救助飞行员——宋寅和万秋雯。     

新时代“经世致用”的设计领军人才培养范式

面向百年未有之大变局，设计学作为一个不断发展与进化的学科，唯变不变，全新的设计生态正在加快形成。文章以“经世之维—致用之体—融合之态—未来之势”为思路，研究设计学科的时代精神与使命担当、知行合一的教学体系、敢为人先的创新生态和数智赋能的发展范式，并结合湖南大学设计艺术学院的实践教学经验，建构了师生共创、多元共融、数字转型的“经世致用”设计领军人才培养范式，为构建全国设计人才自主培养的战略布局提供新方法和新思路。     

中国航海学会组织课题论证考察洋山港区——林祖乙理事长率专家实地踏勘

为加快上海国际航运中心建设,中国航海学会组织全国有关专家对洋山港区船舶进出港航行和靠离泊安全进行课题论证。提出的咨询论证报告内容涉及洋山港区自然条件、航道宽度及水深、第六代集装箱船必须具备的航道宽度及水深、进港航线、航行安全保障条件、船舶靠、离泊及掉头安全保障条件、锚地等。中国航海学会理事长林祖乙还率有关专家赴洋山港实地踏勘,提出了存在的问题及解决的建议。此外,还对风、流压力、船舶向下风漂移速度、拖力及拖轮配置、系缆力进行了精确的计算。