Results 31 to 40 of about 5,067 (147)
Integrative Conservation, Volume 4, Issue 3, Page 430-441, September 2025.Our study identifies southern China, including mountainous regions and islands, as key areas rich in phylogenetic diversity, and phylogenetic endemism of lizards that are currently under‐protected. Current protected areas however do not adequately cover regions that are critical for preserving the evolutionary history of lizards.
Tao Liang (梁涛) +8 more
wiley +1 more source
Body hydration status and decompression sickness [PDF]
Hydration status refers to the balance between the intake and discharge of water in the body. When the ingested and discharged water are roughly equal and the body is in water balance, it is the normal hydration status, and when the water intake is too ...
Baoliang ZHU +7 more
core +1 more source
New Phytologist, Volume 247, Issue 3, Page 1117-1128, August 2025.Summary Environmental changes and their effects are among the most pressing topics of today's ecological research. Shrublands, although widespread across the globe, remain understudied in this respect. We conducted a global meta‐analysis of 81 shrubland sites subjected to experimental warming, shifts in precipitation (e.g.
Daijun Liu +11 more
wiley +1 more source
环境温度对东北林蛙(Rana dybowskii)体温的影响
野生动物学报, 2016 在10℃、16℃、22℃和28℃4个温度条件下,通过测量东北林蛙泄殖腔温度的方法,研究分析了东北林蛙2个不同种群在不同环境温度下的体温变化及其影响。结果表明,东北林蛙的体温随着环境温度的升高而升高,两性间体温无显著差异,但不同地理种群间体温存在一定的差异; 恒温条件下,集安种群的体温没有明显日变化节律,而伊春种群的体温存在显著的日节律变化; 伊春种群具有较低的体温和较强的体温调节能力。由此可知,环境温度是影响东北林蛙不同地理种群的体温及生理体温调节能力的主要因素之一。
孙清琳 徐骁骁 刘 鹏 赵文阁
doaj
Heart rate variability in horses with and without severe equine asthma
Equine Veterinary Journal, Volume 57, Issue 3, Page 611-618, May 2025.Abstract Background Equine asthma in severe form (severe equine asthma [sEA]) shares remarkable similarities with human asthma. Human studies detected changes in the autonomic nervous system function in asthmatic patients based on heart rate variability (HRV) analysis. Study design Observational study. Objectives To investigate the relationship between
Zsófia Nyerges‐Bohák +5 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2015 人体的正常温度总是维持在37℃,上下波动幅度不会超过1℃,这主要是通过神经调节来实现的。体温的升高或降低,都会影响到人体内正常的生理过程,进而发生代谢紊乱[1]。患者在接受手术的过程中,往往因为麻醉药的作用而无法正常调节体温,加之大量输液,手术室温度较低,使之在术中出现低体温现象。有报道称,50%以上的患者,在术中都会出现低体温现象。低体温会造成患者苏醒时间延长、凝血功能受损 ...
周慧 +4 more
doaj
Guangtongxin yanjiu, 2008 文章提出一种利用硅树脂调节光子晶体光子带隙的方法,光子晶体波导是通过往二维正方形光子晶体的介质柱之间填充硅树脂得到的,利用温度场改变硅树脂的折射率。数值模拟结果表明:通过温度场可对这种光子晶体的禁带结构进行调节。这种可调光子晶体可应用于制作新颖的偏光片和光开关。
谭春华, 黄旭光
doaj
Guangtongxin yanjiu, 2020 针对普通马赫-曾德尔（M-Z）滤波器为了获得良好的滤波性能需要mm量级的臂长差的问题,文章提出了一种基于微环辅助M-Z滤波原理的温度传感器,其具有μm量级的尺寸。在M-Z滤波器的一个臂上耦合一个液体微环腔,利用微流控技术将一些温敏液体注入腔内,通过分析传感器的输出光谱,可以检测到温度的变化。实验结果表明,该传感器具有良好的滤波性能及温度分辨能力,消光比>10 dB,3 dB带宽<1 nm,温度检测分辨率可达到0.1℃。此外,通过改变微环中液体的种类,可以调节传感器的温度检测范围。
孙枫 +4 more
doaj
Gaoya dianqi, 2021 SF6气体绝缘金属封闭开关设备（GIS）使用于高寒及户外环境恶劣地区时,为了避免在高寒地区SF6气体受户外环境温度的影响而发生液化现象,同时也为了避免密封系统因户外的恶劣环境骤变而造成SF6气体渗漏现象,采用了将充有SF6气体的金属封闭开关设备置于户内的布置方式来解决此类问题,为配合这种布置方式使用,设计研制了一种GIS出线穿墙套管,该套管与GIS设备在户内连接,然后套管穿过墙体与户外设备连接。文中首先介绍了穿墙套管的设计及现场安装方案,然后通过采用有限元法对穿墙套管的法兰安装部分的结构进行机械强度应力、
刘立宝 +3 more
doaj
Zhongguo shiyan zhenduanxue, 2015 目的探讨全身麻醉下吸烟病人体温与体温调节性周围血管收缩反应的变化。方法全身麻醉下行择期开腹手术的成年男性病人23例(ASA1-2级),分为吸烟组(S组,n=12)与对照组(C组,n=11)。S组患者烟龄13.58±8.38年、吸烟量17.08±5.82支/日,C组患者无吸烟史,其他情况同S组;两组麻醉诱导相同,即用丙泊酚1-2mg/kg、芬太尼4μg/kg、维库溴铵0.1mg/kg,气管插管后行间歇正压通气(IPPV),维持PETCO235-40mmHg,麻醉维持用1-2%异氟烷,0.08-0.12μg/
王明玲, 郑利民, 王焱林, 黄飞
doaj