Results 41 to 50 of about 34,298 (141)
New Phytologist, EarlyView.Design of the VPDrought experiment in a Scots pine (Pinus sylvestris) forest at the Pfynwald research platform. Summary Atmospheric and soil drought are major, yet typically confounded, drivers of tree stress. Rising vapor pressure deficit (VPD) may impair forest function independently of soil moisture decline, yet stand‐scale experimental separation ...
Marcus Schaub +9 more
wiley +1 more source
Gongye shui chuli, 2018 简述了生物炭的制备条件，讨论了生物炭的主要改性方法（化学法、添加改性剂法及改变外界条件），分析了各改性方法的主要优点，总结了改性生物炭对废水中重金属的吸附效果。实验结果表明，改性生物炭对废水中重金属吸附效果较好，重金属的最大去除率可达99.81%。另外，探讨了改性生物炭的吸附机理、影响因素和吸附等温式，并提出了未来生物炭吸附废水中重金属需要研究的方向以及改性生物炭的应用前景。
李仕友 +4 more
doaj +2 more sources
Journal of Critical Infrastructure Policy, Volume 8, Issue 1, Spring/Summer 2027.ABSTRACT Epistemic orphaning, responsibility drift, loss of institutional memory, and non‐stationarity are not new problems in infrastructure governance—they have accompanied long‐life infrastructure throughout its history. What artificial intelligence changes is not the existence of these problems but their scale, opacity, and the structural ...
Priscilla P. Nelson
wiley +1 more source
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, 2016 淀粉作为天然高分子化合物具有来源广泛、价格低廉和可生物降解等优点,改性淀粉被广泛应用于废水中重金属的处理。为了改善其吸附性能,设计并合成了一些新型结构的改性淀粉,其中双醛改性淀粉在结构和特点上与传统的改性淀粉不同。在介绍其合成方法基础上,总结了双醛改性淀粉的种类、结构以及处理废水中重金属的特点,为今后设计更多的新型改性淀粉提供参考。
张新娜 +4 more
doaj +2 more sources
Dead Ends and Policy Change in Chinese Experimental Governance
Governance, Volume 39, Issue 4, December 2026.ABSTRACT Not all policy change is expansive, yet non‐expansive trajectories remain underexamined. This article introduces the concept of dead ends: a stage of the policy process in which initiatives cease to develop or be implemented in their existing form, structuring subsequent policy change such as rollback, redirection, or termination.
Vincent Brussee
wiley +1 more source
[Surface-modified microchip electrophoretic separation and analysis of functional components in health care products]. [PDF]
Se Pu, 2023 Lau WC, Chen YL, Xia L, Xiao XH, Li GK.
europepmc +1 more source
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Wide‐bandgap perovskite solar cells (WBG PSCs) have attracted significant attention as the top cell in tandem perovskite solar cells. However, the complexity of the composition leads to challenges such as defect formation and phase separation during the crystallization process, which impose significant constraints on the power conversion ...
Suzhen Liu +9 more
wiley +1 more source
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Regulating the d‐band center of semiconductors through elemental doping presents a promising strategy for enhancing the efficiency of photocatalytic nitrogen conversion. This review systematically summarizes recent advances in d‐band center engineering for photocatalytic nitrogen fixation.
Zixuan Li +10 more
wiley +1 more source
Gongye shui chuli, 2020 研究了NaOH、HNO3改性玉米秸秆对水中Cu2+的吸附性能及吸附特性。研究表明，改性后的秸秆表面光滑，结晶指数高，对Cu2+的吸附容量增大。相比未改性玉米秸秆和酸改性玉米秸秆，碱改性玉米秸秆对Cu2+的吸附效果最好。碱改性玉米秸秆对Cu2+的吸附能较好地符合Freundlich方程和伪二级动力学模型。初步推断吸附机理是秸秆表面官能团与Cu2+络合形成复合体的化学吸附过程。
张华丽 +3 more
doaj