Physiological effects of methmidophos and phoxim on Porphyra haitanensis

In this paper, the effects of methmidophos and phoxim with different concentrations and schedule on soluble protein content and chlorophyl a (Chla) content in Porphyra haintanensis were studied under experimental and ecological conditions. The results showed as follows: (1) there were some time-effect and dose-effect relationships between the pollutants and Chla contents. The Chla content of most of groups decreased with the increasing of dose and prolonging of the exposure time. In the same concentration, the toxicities of phoxim to Chla content was stronger than that of methmidophos. (2) All concentration groups in this study didn't show the significant time-effect and dose-effect relationships between pollutants and the soluble protein. And there was no significant difference of the soluble protein content among various groups.福建省重大科技项目(2001Z017

Study on Biochemical Effect of Cu~(2+) and Cd~(2+) on Porphyra haitanensis

研究了不同浓度(0.1、0.5、1.0、10、20 mg/L)和不同培养时间(12、24、48、72 h)下,重金属(Cd2+和Cu2+)对坛紫菜(Porphyra haitanensis)核酸(RNA和DNA)含量、过氧化物酶(POD)活性的影响.结果表明:1)10、20 mg/L Cd2+、Cu2+暴露,POD活性先上升(48 h前)后下降(48 h后),其它浓度组POD活性均随污染时间的延长而升高.24、48、72 h均出现比较良好的剂量 效应关系.2)Cd2+和Cu2+对RNA、DNA含量的影响基本上表现为先上升后下降的时间效应关系,同一污染物浓度越大越早出现下降.同时出现随暴露剂量的增加,RNA、DNA含量先上升后下降或全部下降的剂量 效应关系.Effects on nucleic acid (RNA and DNA) content and peroxidase (POD) activity of Porphyra haintanensis exposed to bivalent cadmium (Cd~(2+)) and bivalent copper (Cu~(2+) ) at concentrations of 0.1,0.5,1,10,20 mg/L were studied in experimental conditions.Samples were taken after exposure for 12 h,24 h,48 h and 72 h.Time-effect and dose-effect relationships of the nucleic acids and POD were investigated.The results showed:1)In groups exposed to 10 mg/L or 20 mg/L Cd~(2+) and Cu~(2+),the POD activity increased at first 48 hours,then decreased during the prolonging of the exposure time.In other dealing groups exposed to lower concentration of two heavy metals,POD activity increased throughout the exposing time.2)With the prolonging of exposure time, the effects of Cd~(2+) and Cu~(2+) on RNA and DNA contents in all group showed similar way:the content first increased and then decreased.And the higher the concentrations of the same pollutant,the earlier the decrease turned up.At the same time,there were significant dose-effect relationships between pollutants and RNA and DNA contents.The contents of nucleic acids increased first,then decreased or decreased completely with concentrations of two heavy metals increased.福建省重大科技项目(2001Z017

Study on Effect of Perioxidase in Porphyra haitanensis Exposed to Organophosphorus Pesticides

用有机磷农药(甲胺磷、辛硫磷)分别在0.1,0.5,1,10,20mg/L浓度下对坛紫菜(Porphyrahaitanensis)暴污,不同时间(12h,24h,48h,72h)取样.测定甲胺磷、辛硫磷对坛紫菜叶状体过氧化物酶活性的影响.结果表明:随污染时间的延长,甲胺磷低浓度诱导POD活性,高浓度先诱导后抑制,并且浓度越大越早出现抑制;辛硫磷所有浓度均表现为先诱导后抑制的趋势.24h、48h、72h均出现比较良好的剂量 效应关系.污染暴露48h,相同条件下对POD活性的毒性大小为:辛硫磷>甲胺磷.The effects of methmidophos and phoxim on peroxidase (POD) activity in Porphyra haintanensis were studied under the experimental ecological conditions. Samples were taken after exposure for 12 h, 24 h, 48 h and 72 h respectively. Timeeffect and doseeffect relationships of POD activity were investigated. The results showed that when exposed to methmidophos, the POD activity was induced at low concentration, and first induced and then inhibited at high concentration,and that when exposed to phoxim, the POD activity was first induced and then inhibited during the prolonging of the exposure time.In the same conditions, the sequence of toxicity of pollutants for POD activity was: phoxim>methmidophos.福建省科技课题项目(200212017

Ham sausage appearance quality detection system

本发明涉及一种火腿肠外观质量检测系统,包括:提升装置、旋转排序装置、检测装置以及剔除装置,其中:提升装置,入口与火腿肠烘干箱出口相连,经过提升带将火腿肠提到旋转排序装置中;旋转排序装置,将杂乱无序的火腿肠进行排列,形成首尾相接的有序状态;检测装置,对旋转排序装置输出的有序火腿肠逐个获取图像,将每个火腿肠的图像数据输出至处理装置;剔除装置,根据处理装置的控制信号将由检测装置落入的有缺陷火腿肠剔除。本发明能够在火腿肠动态下实现快速检测,为火腿肠外观质量检测提供了有力保证,检测速度快,每分钟可以检测300根火腿肠,准确率达到99%

Effects of two organophoshporus pesticides on nucleic acid of Porphyra haitanensis

在实验生态条件下研究了不同浓度、不同时间甲胺磷、辛硫磷暴露对坛紫菜 (Porphyrahaitanensis)核酸 (RNA和DNA)含量的影响。结果表明,随着污染时间的延长 ,所有污染物对RNA、DNA含量的影响基本上表现为先上升后下降的时间效应关系 ,同一污染物浓度越大就越早出现下降。同时出现随暴露剂量的增加 ,RNA、DNA含量先上升后下降或全部下降的剂量 -效应关系。This paper considers the impact on the RNA and DNA of Porphyra haintanensis when exposed to different concentrations and exposure durations of methmidophos and phoxim in both experimental and ecological conditions. The results show signiticant dose-dependant relationships between pollutants and RNA and DNA content. As the dose increases both RNA and DNA amounts initially increase before then decreasing.福建省重大科技项目(2001Z017

Appearance quality detecting system for ham sausages

本实用新型涉及一种火腿肠外观质量检测系统,包括:提升装置、旋转排序装置、检测装置以及剔除装置,其中:提升装置,入口与火腿肠烘干箱出口相连,经过提升带将火腿肠提到旋转排序装置中;旋转排序装置,将杂乱无序的火腿肠进行排列,形成首尾相接的有序状态;检测装置,对旋转排序装置输出的有序火腿肠逐个获取图像,将每个火腿肠的图像数据输出至处理装置;剔除装置,根据处理装置的控制信号将由检测装置落入的有缺陷火腿肠剔除。本实用新型能够在火腿肠动态下实现快速检测,为火腿肠外观质量检测提供了有力保证,检测速度快,每分钟可以检测300根火腿肠,准确率达到准确率99%

软件定义光传送网控制器测试方法研究

软件定义光传送网采用集中式的控制器进行网络控制,控制器的性能及其测试方法是判断其是否存在性能"瓶颈"的重要手段。文章对评测控制器性能"瓶颈"的性能指标进行了分析,在此基础上,提出了一种针对控制器长期运行性能指标的测试方法,采用此方法可对控制器长期运行的稳定性、可靠性及性能进行综合评判