Results 11 to 20 of about 1,605,069 (129)
Auto-focus technology and its application based on image processing [PDF]
, 2009 Auto-focusing technique is an important method to improve the precision,intelligentization,automatization for the indentation diameter measurement.The paper introduces an auto-focus method of indentation diameter measurement based on image processing ...
Chen, Xiaomei, Yang, Tao, Zuo, Yong
core +3 more sources
Physiological adaptation of two unicellular green algae to pH stress. [PDF]
, 1998 Two marine algae, Dunaliella parva and Chlorococcum submarinum were selected to study the effect of pH stress on single celled algae. D. parva has been well characterised physiologically, but not with regards to pH stress.
Howat, Judy I
core +6 more sources
, 2008 从厌氧发酵过程中微生物作用的机理出发，对影响pH值的主要因素进行了分析。根据电离平衡理论，建立了厌氧发酵过程中pH值的理论计算公式。根据Cobb的实验结果对本计算公式的有效性进行了验证，计算结果与实际测量的平均误差只有3．4％。结果表明公式较好地描述了厌氧发酸过程中碱度、有机酸、氨氮浓度等因素对pH值的影响规律 ...
蒋恩臣, 袁振宏, 何光设
core +4 more sources
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Conductive hydrogels show great potential in flexible electronics and biomedical devices, yet their practical applications are often hindered by insufficient mechanical strength, poor environmental stability, and limited functionality. To address these challenges, this study has developed a hydrogel platform that integrates diagnosis and ...
Wei Jiang +9 more
wiley +1 more source
低ph值对大型daphniamagnastraus存活生长和生殖的影响
, 1994 在25±1℃下, 急性试验低pH值对大型##的24h和48hLL50值及其95%可信限分别为pH值4.66±0.19和4.94±0.20。慢性试验进行了14d, 对存活和生长, pH值4.75有影响, pH值5.0没有影响, 对生殖, pH值5.0有影响, pH值5.5没有影响。显示出低pH值对大型##的毒性阈限在pH值5.00-5.5之间 ...
庄德辉
core +2 more sources
, 2010 NSC83-0410-E032-013Fenton法可發揮混凝與氧化之作用已可確知，然而如何兼顧此二作用，必需由反應過程中pH值加以控制，此因pH值控制著系統中鐵型態，而鐵型態決定Fenton連鎖反應中自由基再生行為;叉，鐵型態除受pH值影響外，系統中溶氧量與鹼度對初期Fenton反應影響亦大，因亞鐵離子易於此系統中氧化。 文中掌握pH值對過氧化氫分解作用，輔以其對亞鐵離子存在型態之影響，過氧化氫、亞鐵兩者共存下相互反應影響關係'最後加入有機物與自由基影響因子，藉由有機物之變動與去除量之評估 ...
張淑芳; 高思懷; 吳嘉麗
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Shuitu Baochi Xuebao, 2016 为了阐明不同碱性条件下苏打盐碱土无机磷各组分的含量及转化情况，通过室内模拟试验结合室内分析方法，以吉林省西部地区苏打草甸碱土为研究对象，对不同pH条件下土壤不同形态无机磷组分含量的动态变化进行了研究。结果表明，在一定范围内降低碱土pH值有利于增加土壤中Ca2-P、Fe-P、Al-P及Ca8-P等形态磷的含量，其中pH值8.3处理比pH值9.2处理分别提高了44.8%，4.1%，45.9%，42.0%；比pH值10.2处理分别提高了81.5％，19.6%，39.3%，103.7%；O ...
耿玉辉, 柴立涛
doaj
Toward a New Generation of AI‐Enabled Wearable Sensors
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Wearable sensors have emerged as important platforms for noninvasive, real‐time, and continuous monitoring of physiological information, with growing applications in personalized healthcare, human‐machine interfaces (HMIs), and robotic empowerment.
Tianqi Yang +7 more
wiley +1 more source
The Final Frontier of pH and the Undiscovered Country Beyond [PDF]
, 2012 The comparison of volumes of cells and subcellular structures with the pH values reported for them leads to a conflict with the definition of the pH scale.
Wolfgang Maret +5 more
core +3 more sources
Ten rules for using evidence to guide ecosystem restoration
Journal of Applied Ecology, Volume 63, Issue 9, September 2026.These 10 rules provide a guidance framework to put into action the best available evidence, ensuring that restoration benefits people and nature. We highlight the importance of knowledge brokering systems in this process, effectively informed and empowered to fulfil their emerging role across existing institutions and new ones dedicated to Science ...
Rafael B. Chaves +12 more
wiley +1 more source