Results 41 to 50 of about 1,066,218 (148)
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT The immunosuppressive milieu of hepatocellular carcinoma (HCC) remains a major obstacle to durable antitumor responses. Mechanical‐energy‐driven piezocatalysis provides a noninvasive means of inducing oxidative damage and immunogenic tumor destruction; however, inefficient utilization of piezoinduced charges and insufficient localization of ...
Mingjian Zhang +7 more
wiley +1 more source
四川大学学报. 自然科学版, 2015 针对Stokes-Darcy耦合问题提出一种新的投影稳定化方法,该方法对整个区域采用统一的等阶有限元空间逼近.相比通常的局部投影稳定化方法,增加了新的投影稳定项以及压力跳跃项,有效地克服了等阶有限元不满足inf-sup条件的困难,也保证了该方法不仅对不连续的压力空间适用,且对连续的压力空间亦适用.最后,证明了该方法的稳定性,并给出了误差估计.
曾凤, 冯民富
doaj
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT High‐yield photocatalytic H2O2 production in sacrificial agent‐free pure water constitutes a critical bottleneck requiring urgent advances in energy catalysis. Although ZnIn2S4 (ZIS) exhibits favourable visible light absorption, it is plagued by severe bulk charge carrier recombination and scarce accessible surface‐active sites.
Sheng Liu +7 more
wiley +1 more source
Green Hydrogen in Brazilian Media: Dominant Narratives and Missing Dimensions of the Energy Trilemma
Politics &Policy, Volume 54, Issue 5, October 2026.ABSTRACT Media discourses help shape the visibility and legitimacy of energy transition pathways in the public sphere. This study examines how Brazilian mainstream newspapers framed green hydrogen and assesses the alignment of these narratives with the energy trilemma: energy security, environmental sustainability, and social accessibility. We analyzed
Flávia Mendes de Almeida Collaço +3 more
wiley +1 more source
, 1996 引进慢不稳定性概念,对卡门涡街的稳定性问题,进行了比较全面和细致的数值研究.首先用点涡模型做数值模拟,证实了早年卡门的线性稳定性分析结果,数值模拟卡门涡街的非线性稳定性却表明,卡门涡街对有限大小的扰动,表现出慢不稳定现象.然后用伪谱方法对涡街的形成进行直接数值模拟 ...
唐少杰, 忻鼎定, 庄逢甘
core +2 more sources
四川大学学报. 自然科学版, 2007 设F=Fq是一个q元有限域,其中q=pf,f≥1,p是一个奇素数.利用有限域F=Fq上一类方程:a1xd111...xd1,m+m1+1+a2xd121...xd2,m+m1+1xd2,m+2m+2+...+akxd1k1...xdk,m+m1+1...xdkm,+km+k=0,其中m≥0,k≥1,dij≥0,ai∈F*,b∈F当指数满足一定条件时,在(F*)m+k上解数的直接公式结果,给出相应射影簇的zeta函数的可计算公式.最后,应用这些公式计算了一具体方程的zeta函数.
蒋剑军, 王文松
doaj
, 2001 影响土壤降水入渗的主要因素是土壤自身的性质如土壤质地、容重、含水率、地表结皮、水稳性团粒含量、利用方式等。土壤质地不同[1],土地利用方式不同[1,2 ],土壤入渗速率均存在较大差异。周国逸等人的研究认为 ,地表结皮的形成能很快降低土壤入渗速率 ,使裸地土壤入渗速率减小到未形成结皮前的 4.84% [3];蒋定生等研究黄土高原土壤入渗速率时发现 ,土壤瞬时入渗速率与土壤容重、含水量、水稳性团粒含量间存在显著相关性[4 ]。由于受野外降雨入渗试验装置的限制 ...
张春燕 +3 more
core
四川大学学报. 自然科学版, 2010 作者讨论了一类酶作用下的饱和反应系统的定性性质和分岔现象,并利用正规形的方法得到了在唯一平衡点附近由Hopf分岔产生的小振幅极限环,然后通过构造Poincare-Bendixson环域得到了大振幅极限环的存在性.
冷忠建, 高波
doaj