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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Rare earth elements (REEs) play an irreplaceable role in modern technology and industry. However, due to the highly similar physicochemical properties among REEs, their separation remains a significant challenge. Additionally, REEs often exist in low‐concentration solutions, making efficient REE recovery an urgent task.
Miao‐Miao Huang +6 more
wiley +1 more source
Gongye shui chuli, 1997 通过对几种水样的紫外吸光度与有机物耗氧量之间的拟合相关方程的探讨表明，紫外吸光度做为有机物的替代指标，两者之间具有良好的线性关系，并且具有操作简单、快速准确的特点。特别是作为活性炭处理水质的分析方法，可以迅速反映活性炭所处的吸附阶段。
金伟, 范瑾初
doaj +2 more sources
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT With the continuous advancement of materials science and technology, the rare metal gallium has increasingly emerged as a promising alternative to the toxic metal mercury. Although existing research has predominantly focused on the high electrical conductivity and excellent deformability of liquid metal (LM), its intrinsic fluidic property ...
Feifan Guo +6 more
wiley +1 more source
, 2003 子午岭林区是黄土高原保存最完整的天然次生林区。该区北部目前还保存有空间上完整的植被正向演替系列，即弃耕地先锋群落→草本群落(白羊草Bothriochloa ischemum、茭蒿Artenmisia giradii+长茅草Stipa bungeana、铁杆蒿Artenmisia sacrorum、大油芒Spodiopogen sibiricus+苦参Sophora flavecens、黄菅草Themeda japonica 或野古草Arundinella anomala )→灌丛群落(
周印东
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT TiFe‐based hydrogen storage alloys have garnered significant attention because of their cost‐effectiveness, high hydrogen capacity, and favorable hydrogen absorption/desorption characteristics. However, practical application was limited by activation challenges and sensitivity to environmental poisoning.
Yuehai Li +8 more
wiley +1 more source
, 2011 本发明涉及有机氯代污染物的降解方法，具体的说一种高效降解持久性有机卤代污染物的加氢脱卤方法。具体地说，本发明反应体系为有机-水两相溶剂体系，是持久性有机氯代污染物在常温、常压下加氢脱氯，采用过渡金属做催化剂，该类催化剂由活性组分与载体组成。活性组分为：Pd、Rh、Ru、Pt、Ni、Fe、Co、Ir中的一种或多种，活性组分占催化剂质量分数的0.5%~5.0%。反应压力为常压，反应温度控制在30~55℃。本发明制备简单，不需要特殊设备。脱卤反应条件温和，操作易于控制，催化剂用量少 ...
薛朋 +6 more
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Achieving Transboundary Water Security Through Water Innovations: A Framework and Cases
World Water Policy, Volume 12, Issue 1, February 2026.ABSTRACT Alternative sources of freshwater, provided by various innovations, have long been available to countries facing acute water stress. We hypothesize that avoiding and/or resolving conflict with neighbors—caused by the uncertainty of continued access to shared surface water and groundwater sources—is another driver of innovation adoption ...
David Lewis Feldman
wiley +1 more source
新的有机化合物代码及计算机估算系统－工程有机化学数据库（ORDB）的新发展
, 1987 在论文期间，建立了部分有机化合物基础物性数据库，其中有725个化合物的物性数据。本文研制了一种新的有机化合物结构代码，称为“显式有机化合物结构代码”（以下称“显式代码”）。这个代码与分子式的写法基本相同，因此十分容易掌握。在“显式代码”的基础上实现了计算机自动解析功能团。与数据库相连接的估算系统可以估算20种不同状态下的物性参数，其中有五种估算方法是功能团贡献法。这些功能团贡献法实现了自动解析功能团。估算系统可以只要求输入分子式和结构代码就能够输出所需要的物性参数而不必输入任何其它中间参数 ...
孙荣昌
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Journal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.ABSTRACT Bangladesh's goal of achieving high‐income status by 2041 requires dependable, low‐emission, and affordable energy. With near‐universal grid coverage and increasing demand, nuclear energy is a strategic asset for long‐term baseload supply. However, the existing financing model, typified by the country's most expensive $12.65 billion Rooppur ...
Hafiz Ahmed
wiley +1 more source
, 1990 本文在对各种倾斜光束和倾斜反射镜等空间光路布置的转镜相机设计方案分析的基础上，提出了利用场镜偏转光路的轴外点成象的斜光束光路布置的方案，并设计出了一种采用平行平面反射镜的斜光束等待型转镜分幅相机。本文还对转镜分幅相机中转镜参数及各代替元参数的计算进行了分析，并针对这些计算，提出了最大有效信息量的概念，以及排镜代替元的两种新的计算方法和胶片代替元的迭代计算法。利用这些新的计算方法进行相机的设计，得到比较好的计算结果。我们还针对转镜分幅相机的设计计算 ...
康建章
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