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Zhejiang Daxue xuebao. Lixue ban, 2022 为加快张量积型Said-Ball曲面渐近迭代逼近法的收敛速度，探讨了张量积型Said-Ball曲面渐近迭代逼近法的预处理技术。首先利用对角补偿约化技术构造了预处理子，然后结合矩阵Kronecker积性质，采取预处理渐近迭代逼近法求解张量积型Said-Ball曲面。为进一步降低计算量并提高算法的稳定性，利用广义极小残差法求解预处理方程，得到预处理渐近迭代逼近法的非精确求解方法。分析了预处理渐近迭代逼近法及非精确求解方法的收敛性。最后用数值实例说明预处理子能大大减小迭代矩阵的谱半径 ...
QUANHaorong(全浩荣) +4 more
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Shuitu Baochi Xuebao, 2020 对秸秆进行预处理可以加快秸秆的腐解，为了探讨秸秆经过不同预处理后还田对土壤养分淋溶及COD淋出量的影响，利用白腐真菌、大球盖菇、尿素分别对秸秆进行预处理，通过室内人工土柱模拟试验方法，对秸秆配施有机肥还田后土壤中氮磷及COD淋出量进行分析。运用（SEM）扫描电镜、（FTIR）傅里叶红外光谱、（XRD）X射线多晶衍射对预处理前后秸秆结构及成分进行分析，并通过比较不同预处理秸秆与有机肥配施淋溶过程中总氮、硝态氮、铵态氮、总磷、溶磷、COD的变化来确定秸秆还田前最佳的预处理方式。结果表明 ...
白云 +5 more
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Gongye shui chuli, 2022 微生物燃料电池（MFCs）能够在降解有机物的同时将化学能转化为电能，近年来其独特的能源环境效应在降解藻类生物质方面引起广泛关注。然而，成分复杂的藻类细胞壁会阻碍藻类生物质在微生物燃料电池中的降解。为了提高微生物燃料电池降解藻类生物质的效能，通常需要对藻类生物质进行预处理，破坏藻类细胞壁使生物基质释放，并将难降解的大分子有机物分解为易降解的小分子有机物。综述了目前应用于微生物燃料电池降解藻类生物质的预处理方法，包括机械法、加热法、微波法和超声波法等物理预处理法，酸、碱、氧化等化学预处理法，酶或微生物细胞 ...
宗友健 +5 more
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Gongye shui chuli, 2023 短程硝化工艺具有节约硝化需氧量和反硝化碳源等优势，是目前水处理领域的研究重点。研究游离亚硝酸（FNA）预处理法实现短程硝化的快速启动和稳定运行符合节能低碳的理念。在6个相同的移动床生物膜反应器（MBBR）中分别投加质量浓度为0、3.2、6.4、9.6、12.8、16.0 mg/L的FNA，对生物膜浸泡12 h进行预处理，并以预处理前的反应器作为对照，研究FNA预处理浓度对功能微生物群落的影响，以及最佳条件下短程硝化的运行稳定性。实验结果表明，25 ℃、FNA质量浓度为6.4 mg/L、预处理12 h ...
丁凡 +5 more
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Risk, Hazards &Crisis in Public Policy, Volume 17, Issue 2, June 2026.ABSTRACT The article examines how ‘soft’ information functions in rational organisations that emphasise hard information, and how this affects safety. Drawing on fieldwork in a high‐security prison, we analyse how frontline personnel interpret soft information about potential disturbances. We identify three coexisting institutional logics shaping these
Grethe Midtlyng +1 more
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Functional Ecology, Volume 40, Issue 6, Page 1921-1932, June 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Most terrestrial plant species form symbioses with arbuscular mycorrhizal fungi (AMF). However, the below‐ground carbon (C) allocation of plants and the nutritional and growth benefits provided by AMF within this symbiosis vary greatly across species and environments ...
Hengjun Zhao +3 more
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Differences in characteristics between naturalized threatened plants and other threatened plants
Conservation Biology, Volume 40, Issue 3, June 2026.Abstract Many non‐native plant species introduced by humans have become naturalized. At the same time many species are threatened in their native range. However, the number of plant species threatened in their native range that are naturalized elsewhere remains unknown.
Weihan Zhao +10 more
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油料预处理对油脂品质影响的研究进展Research progress on effects of oilseeds pretreatment on oil quality
Zhongguo youzhi, 2023 油料预处理是油脂加工中一个重要的环节，对油脂的质量和风味有着重要的影响。为探究不同预处理技术对油脂质量和风味的影响，综述了不同油料在加工中的不同预处理技术，重点分析脱皮、高温烘烤、微波、挤压膨化、脉冲电场、红外线烘烤及超声波等油料预处理技术对油脂品质的影响，并探讨了油料预处理技术的发展方向。不同预处理技术对油脂品质的影响各不相同，多种油料预处理技术协同应用的加工艺具有较大的发展潜力。Oilseeds pretreatment is an important part of oil processing ...
朱家彬，李研财，苏彩虹，李琪，于修烛 ZHU Jiabin, LI Yancai, SU Caihong, LI Qi, YU Xiuzhu
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Policy, Waste, and Power: Textile Dumping in Chile's Atacama Desert
Latin American Policy, Volume 17, Issue 2, June 2026.ABSTRACT Globally, 87% of textile fibers end up incinerated or in landfills, with Chile bearing the brunt of this crisis. Every year, 39,000 tons of discarded clothing are illegally dumped in the Atacama Desert, turning it into a sacrifice zone for the Global North's waste economy.
Emma Minerva Brambilla
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Preconditioned progressive-iterative approximation for cubic B-spline fitting(三次B样条拟合的预处理渐进迭代逼近法)
Zhejiang Daxue xuebao. Lixue banTo improve the convergence efficiency of progressive-iterative approximation for large-scale data fitting, we introduce a class of Jacobi preconditioners and develop two preconditioned methods: preconditioned LSPIA and preconditioned PmLSPIA.
LIU Chengzhi(刘成志) +3 more
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