【摘 要】
：
基层养路工人长期从事道路的护养和清洁工作,其健康损害主要为粉尘所致的尘肺病和其他肺部疾病[1];同时基层养路工人在工作中还面临着过往车辆所产生的噪声和对自身安全的影
论文部分内容阅读
基层养路工人长期从事道路的护养和清洁工作,其健康损害主要为粉尘所致的尘肺病和其他肺部疾病[1];同时基层养路工人在工作中还面临着过往车辆所产生的噪声和对自身安全的影响,长期精神高度紧张,容易发生心血管系统的疾病造成心电图改变。为了解基层养路工人心血管系统受损状况
Primary-level road maintenance workers have long been engaged in road maintenance and cleaning work. Their health damage is mainly dust-induced pneumoconiosis and other lung diseases [1]. At the same time, primary-level road maintenance workers are also faced with noise from passing vehicles and Their own safety, long-term high-tension, prone to cardiovascular diseases caused by ECG changes. To understand the basic maintenance workers cardiovascular system damage
其他文献
腾讯网日前发表北京大学法学院张千帆的文章说:中国大城市房价之所以高,最重要的因素无非是住房需求高。谁都想去北京、上海发展,知名大学的学生毕业后都想留在所
Tencent r
A compact 15.0-MeV, 1.5-kW electron linear accelerator (LINAC) was successfully constructed to pro-vide an electron beam for the first photoneutron source at th
This work aims at evaluating the reliability of the GEANT4 (GEometry ANd Tracking 4) Monte Carlo (MC) toolkit in calculating the power deposition on the Megawat
To explore the behavior of radiolytically pro-duced hydrogen release from the waste resin stored in a high integrated container (HIC), and the mechanism of hydr
如何保证数据安全,是当前信息领域亟待解决的突出问题。作为数据安全的基础和核心,密码技术的发展及应用是推动信息化不断发展的重中之重。综合分析现代密码技术的发展,深入
以水热法合成了V2O5纳米管,再以热处理方法由单质硫与V2O5纳米管,制备了硫含量为36%和70%的硫-超导炭黑复合材料,扫描电镜测试表明,单质硫均匀的分散到高比表面积的V2O5纳米
52岁的张岱是南京景明佳园一位普通居民，他挥舞着手中的一份晨报，气愤地向记者讲述，他的信箱每天都会被撬，即使他加了一道锁，报纸还是天天丢失。没法子，他只能天天去收发室领报纸，“说白了，因为穷，小区里的很多人有贪小便宜的意识”。始建于2002年的景明佳园是南京最早的一个大型经济适用房小区，被戏称“穷人区”。张岱对“穷人区”这种保障房模式很有看法，他认为应该是贫富杂居，“富人把穷人带动起来”。 20
A prompt gamma-neutron activation analysis (PGNAA) system was developed to detect the iron content of iron ore concentrate. Because of the self-absorption effec
Third-generation-semiconductor zinc oxide is utilized as an energy converting material in a betavoltaic battery, where 0.06 Ci 63Ni and 8 Ci 147Pm are used as t
运动后不宜吃鸡、鱼、蛋许多人在体育锻炼后常有肌肉发胀、关节酸痛、精神疲乏之感。为了尽快解除疲劳,他们就会买些鸡、鱼、肉、蛋等大吃一顿,以为这样可补充营养,满足身体