Results 51 to 60 of about 1,550,721 (197)
Gongye shui chuli, 2018 以羊栖菜生物炭为原料，采用CO2物理活化法制备中孔活性炭。应用响应曲面中心组合法设计实验，考察了活化温度、活化时间及CO2流量对制备的活性炭吸附亚甲基蓝的影响及其交互作用，并采用N2吸附脱附对所制备的活性炭进行表征。结果表明，当活化温度为900℃，活化时间为30 min，CO2流量为1.8 L/min时，制备的活性炭的比表面积为1 329 m2/g，其对亚甲基蓝的吸附值高达235 mg/g，总孔体积为1.176 9 mL/g，中孔率为65%。
张智亮 +4 more
doaj +2 more sources
, 2011 具有高活性和强抗烧结性能的贵金属金催化剂，是以羟基磷灰石和过渡金属铁氧化物的混合物为载体，贵金属金为活性组分的担载型催化剂；两种载体的协同效应使得该催化剂在具有良好的催化活性同时拥有优异的高温抗烧结性能和反应稳定性；其中羟基磷灰石，主要起增强金催化剂的高温抗烧结性能以及反应稳定性的作用；氧化铁主要起提高金催化剂的催化反应活性的作用。该催化剂具有制备简单、催化活性高、稳定性好、抗烧结性能强等特点，即使是经过600℃高温煅烧，依然具有较高的催化反应活性。该发明开发了一种高活性强抗烧结性能的贵金属金催化剂 ...
赵昆峰 +4 more
core
AI foundation models in plant biology
New Phytologist, EarlyView.Foundation models decode genomes, engineer proteins, phenotype crops, and drive AI agents across plant biology. This figure was created in BioRender (BioRender.com/xcmmkel). Summary Rapid technological progress has enabled plant biologists to accumulate unprecedented volumes of multi‐scale, multi‐modal data, yet this abundance of data has intensified ...
Haopeng Yu
wiley +1 more source
, 2011 本发明涉及一种微囊化细胞活性的检测方法。检测步骤包括样品提取、腺苷酸分离定量，通过能荷计算表征微囊内细胞活性。本发明针对微胶囊这样的特殊体系设计了一套用于微囊内细胞腺苷酸定量的操作方案，能准确定量微囊化细胞腺苷酸含量，克服现有技术存在的提取过程样品损失大，测试不稳定，重复性差等缺陷。测定结果可作为微囊化细胞活性的评价指标 ...
王为, 肖静, 马小军, 于炜婷
core
Pollution and Haunted Eco‐Histories: Silent Hill and Silent Horrors in Centralia, Pennsylvania
Popular Culture Review, Volume 37, Issue 2, December 2026.ABSTRACT Centralia is a former mining town and borough in Northeastern Pennsylvania, whose population has been steadily declining since the Mine Fire of 1962—a fire that still burns today. The “horrors” of living in Centralia are reflected in horror media set in postindustrial mining towns like Silent Hill.
Maz Jardon
wiley +1 more source
Gongye shui chuli, 2015 以Bi2O3 和MnCl2·4H2O为原料,利用水解法合成了Mn/BiOCl催化剂。用XRD、HRTEM等对其进行了表征。以苯酚作为光催化反应模型化合物,考察了Mn/BiOCl催化剂的紫外光催化活性。并评价了清除剂对催化剂紫外光催化活性的影响。结果表明:Mn的含量对Mn/BiOCl催化剂的光催化活性有很大影响。当n(Mn):n(Bi)为1:100时,所合成的Mn/BiOCl催化剂光催化活性最高,苯酚的光催化降解率达到70.3%。
崔玉民 +4 more
doaj +2 more sources
Governing for Digital Resilience: Rethinking Inclusion for WSIS+20 and Beyond
Policy &Internet, Volume 18, Issue 4, December 2026.ABSTRACT At the WSIS+20 juncture, this article asks what conditions enable individuals to participate meaningfully in digital life, and how governance arrangements should be assessed accordingly. Multistakeholder governance has distributed authority across actors, but not necessarily the capacity to shape or respond to digital conditions. We argue that
Audrey Yue, Jun Yu, Renae Sze Ming Loh
wiley +1 more source
, 2006 本发明涉及消除液相脱卤反应中催化剂中毒和失活的方法，具体地说是一种通过调节脱卤反应介质酸碱性质来提高液相加氢脱卤反应中催化剂的活性和稳定性，从而消除了脱卤反应中催化剂的中毒和失活。在有机卤代化合物的液相脱卤反应中，加入碱调节反应液的酸碱性，同时采用金属催化剂，用氢气作为氢源，反应压力为0.05MPa～0.5MPa，反应温度为 10～80℃；催化剂中的活性组份为Pd、Rh、Pt、Ni中的一种或多种，活性组份占催化剂总量的0.5％～10％。本发明的优点为：在通过调节反应介质的酸碱性，消除了催化剂中毒和失活 ...
徐 杰, 梁鑫淼, 夏传海
core
Risk, Hazards &Crisis in Public Policy, Volume 17, Issue 4, December 2026.ABSTRACT Public communication campaigns on environmental issues rely on economic and ecological arguments, assuming that the recognition of messages is sufficient to produce adjustments in practices. Drought constitutes a specific case of this problem, as a creeping crisis: a slow‐onset hazard whose effects remain weakly visible in everyday life.
Sébastien Rouquette, Inès Bellahcene
wiley +1 more source
Gongye shui chuli传统电化学技术再生吸附饱和活性炭具有再生效率高、活性炭无质量损失的优点，但其存在着矿化效率低、生成毒理性副产物、能耗高等缺陷。电化学高级氧化（E-AOP）再生技术能有效克服传统电化学再生存在的问题。简述了传统电化学再生活性炭再生效能及机理，分析了操作参数（电流、电解质种类及浓度、再生位置、阳极材料等）对解吸-吸附平衡和污染物矿化效能的影响。总结了3类E-AOP再生技术（电Fenton再生技术、电活化臭氧再生技术、电活化过硫酸盐再生技术）在活性炭再生过程中的作用机制与应用 ...
刘臻 +6 more
doaj +2 more sources