Personal computers, apart from being ubiquitous in our everyday activity, very often have been object of study for eventual negative health consequences. During the recent years, a great number of schools in Albania a...Personal computers, apart from being ubiquitous in our everyday activity, very often have been object of study for eventual negative health consequences. During the recent years, a great number of schools in Albania are equipped with lab rooms for teaching computer skills. This has motivated us to carry out a campaign of measuring the intensity of electric and magnetic fields is such places in the schools of Gjirokastra. This paper presents the results of such a study for the evaluation of the possible hazard related to the exposure to this “electro-smog” of the students and teachers. This is done by comparing the measured values of physical quantities with the respective limits and standards recom-mended by scientists and established by European directives such as 2004/40/CE and 1999/519/CE.展开更多
为研究低能量的非电离辐射对植物种子萌发的影响,本研究以辐射磁场强度为1.93 m A/m、电场强度为729.27V/m、功率密度为1.48 m W/m^(2)的无线路由器作为辐射源,对29种植物种子进行20 d和40 d的辐射处理,并设置对照。结果表明:对照、辐射...为研究低能量的非电离辐射对植物种子萌发的影响,本研究以辐射磁场强度为1.93 m A/m、电场强度为729.27V/m、功率密度为1.48 m W/m^(2)的无线路由器作为辐射源,对29种植物种子进行20 d和40 d的辐射处理,并设置对照。结果表明:对照、辐射20 d、辐射40 d种子之间的发芽率与发芽势表现出不同的差异:(1)玉米、狼尾草、晋杂红高粱、芝麻、三红萝卜、绿豆等6种种子的发芽率、发芽势随着辐射天数增加逐渐降低;(2)南瓜种子的发芽率、发芽势随辐射天数增加而有所增长;(3)小茼蒿、特大美葵、精选紫圆茄、棉花、苏丹草、哼哈草等6种种子随着辐射天数的增加种子的发芽率、发芽势先促进后抑制或者先抑制后促进。从植物分类学角度分析发现,经过辐射处理后,不同科种子的发芽率和发芽势表现出显著差异的比例不同;种子的百粒重在辐射条件下也可能会对种子萌发产生影响。展开更多
A different combined effects for helium gas discharge such as: magnetic field strength, breakdown voltage, applied power, applied pressure, cathode fall thickness, edge effect, distribution of the electron temperature...A different combined effects for helium gas discharge such as: magnetic field strength, breakdown voltage, applied power, applied pressure, cathode fall thickness, edge effect, distribution of the electron temperature and density, and finally exposure time for Staphylococcus aureus substrate over slides at the cathode edge, are discussed under the influence of cold, nonthermal plasmas, ultra low pressure, and presence of the magnetic field for disinfection of bacteria for short exposure times, compatible to International Commission on Non-Ionizing Radiation Protection, Health Phys (ICNIRP) for healing applications. Furthermore, analyses of the experimental data of initial and final densities of cells alive, using survival curves, showed an impressive inhibitory effect of plasma discharge to the remaining survival of bacterial ratio under the influence of the magnetic field.展开更多
文摘Personal computers, apart from being ubiquitous in our everyday activity, very often have been object of study for eventual negative health consequences. During the recent years, a great number of schools in Albania are equipped with lab rooms for teaching computer skills. This has motivated us to carry out a campaign of measuring the intensity of electric and magnetic fields is such places in the schools of Gjirokastra. This paper presents the results of such a study for the evaluation of the possible hazard related to the exposure to this “electro-smog” of the students and teachers. This is done by comparing the measured values of physical quantities with the respective limits and standards recom-mended by scientists and established by European directives such as 2004/40/CE and 1999/519/CE.
文摘为研究低能量的非电离辐射对植物种子萌发的影响,本研究以辐射磁场强度为1.93 m A/m、电场强度为729.27V/m、功率密度为1.48 m W/m^(2)的无线路由器作为辐射源,对29种植物种子进行20 d和40 d的辐射处理,并设置对照。结果表明:对照、辐射20 d、辐射40 d种子之间的发芽率与发芽势表现出不同的差异:(1)玉米、狼尾草、晋杂红高粱、芝麻、三红萝卜、绿豆等6种种子的发芽率、发芽势随着辐射天数增加逐渐降低;(2)南瓜种子的发芽率、发芽势随辐射天数增加而有所增长;(3)小茼蒿、特大美葵、精选紫圆茄、棉花、苏丹草、哼哈草等6种种子随着辐射天数的增加种子的发芽率、发芽势先促进后抑制或者先抑制后促进。从植物分类学角度分析发现,经过辐射处理后,不同科种子的发芽率和发芽势表现出显著差异的比例不同;种子的百粒重在辐射条件下也可能会对种子萌发产生影响。
文摘A different combined effects for helium gas discharge such as: magnetic field strength, breakdown voltage, applied power, applied pressure, cathode fall thickness, edge effect, distribution of the electron temperature and density, and finally exposure time for Staphylococcus aureus substrate over slides at the cathode edge, are discussed under the influence of cold, nonthermal plasmas, ultra low pressure, and presence of the magnetic field for disinfection of bacteria for short exposure times, compatible to International Commission on Non-Ionizing Radiation Protection, Health Phys (ICNIRP) for healing applications. Furthermore, analyses of the experimental data of initial and final densities of cells alive, using survival curves, showed an impressive inhibitory effect of plasma discharge to the remaining survival of bacterial ratio under the influence of the magnetic field.
