Results 31 to 40 of about 704,495 (152)
Enhanced Dual‐Modality CT Imaging for Evaluating Hematogenous Metastasis During Photothermal Therapy
Rare Metals, Volume 45, Issue 7, July 2026.Dual‐modality computed tomography (CT) nanoprobes, BPP, are developed for real‐time microscopic monitoring of microvessel morphology and vascular permeability to provide predictive insights into cancer progression and metastasis. ABSTRACT Dynamic assessment of hematogenous metastasis is crucial for the tumor during photothermal therapy.
Yanhong Sun +7 more
wiley +1 more source
Shuitu Baochi Xuebao, 2001 研究了 6种不同农作措施下红壤坡耕地水土流失特征 ,结果表明 :同顺坡农作措施相比 ,其它农作措施均具有明显减轻水土流失的作用 ,休闲处理能减少径流流失 4 2 .8% ,减少泥沙流失量 85 .0 2 % ;等高土埂处理能减少径流流失 70 .2 0 % ,减少泥沙流失量 95 .0 4 % ;水平草带能减少径流流失 3 2 .3 3 % ,减少泥沙流失量 4 5 .88% ;水平沟处理能减少径流流失 4 5 .6% ,减少泥沙流失量 63 % ;等高农作能减少径流流失 5 6.3 3 ...
袁东海 张如良 等
doaj +2 more sources
Shuitu Baochi Xuebao, 2017 为研究氮素的流失特征，探索坡长和降雨强度对氮素流失的影响，选定坡长（2，3，4，5 m）和降雨雨强（0.65，0.69，0.83，0.85，1.01，1.20，1.37，1.54，1.68，1.80 mm/min）作为可变因素，在红壤裸坡上进行室内人工模拟降雨试验。结果表明：（1）坡面径流中各形态氮素流失随时间推移基本趋势为降雨初期径流携带氮素的浓度大，随后氮素浓度下降，至20 min左右下降趋势变缓，最终径流中同一形态氮素的浓度趋于一致。（2）坡长一定时 ...
邬燕虹 +4 more
doaj
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Methanol‐assisted hydrogen generation reduces energy consumption while maintaining high hydrogen productivity. However, constructing bifunctional catalysts with high hydrogen evolution reaction (HER) activity, CO tolerance, and long‐term stability remains challenging.
Xiaoyu Zheng +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Germanium is a critical dispersed metal, yet sustainable recovery from dilute solutions is limited by sorbents that are difficult to regenerate and operate in continuous mode. Here, we fabricate a regenerable 3D‐printed hydrogel monolith (3D‐ATO‐GS) by integrating hydroxyl‐rich amorphous TiO2 nanoparticles into an alginate/gelatin scaffold ...
Wenhuan Guo +6 more
wiley +1 more source
Shuitu Baochi Xuebao, 2004 通过对黄前库区流域森林主要类型刺槐林和油松林土壤结构状况和渗透性能的比较,研究了不同森林类型地表径流水的移动规律。在自然降雨后,以1m×1m为基本单位推算其可能产生的地表径流量,根据实际径流量推算地表径流水在径流过程中下渗的数量。研究结果表明:刺槐林的森林土壤结构相对较好,地表径流水下渗的速度较快,而流速较慢,因而产生的地表径流量较少;而油松林,特别是阳坡油松林的土壤结构较差,地表径流水下渗的速度较慢,而流速较快,因而产生的地表径流量较大。
李德生 张萍 张水龙 朱殿兴 鲁法典
doaj +2 more sources
Shuitu Baochi Xuebao, 2006 以黄土高原中部泾河及其7个子流域为研究对象，选取了流域内8个水文站33年的径流量和输沙量以及30年的降水量数据，同时对2002年的MODIS数据进行分类处理，分析了不同流域的水沙变化差异及其地表覆被类型特征。结果表明：泾河流域近50年来的输沙量略有下降，而径流量减少比较显著；泾河及其7个子流域的水沙变化和9种地表覆盖类型空间格局的差异显著；地表植被类型较好的流域，径流量相对较大而输沙量相对较小，且径流量与输沙量的起伏波动较小，反之则流域的径流量相对较小而输沙量相对较大，且径流量与输沙量的变化明显。
王兮之 +4 more
doaj
Policy &Internet, Volume 18, Issue 2, June 2026.ABSTRACT In an era of proliferating but divergent data protection regimes, the European Union's rights‐based approach and China's sovereignty‐centric model have become two dominant poles of global data governance. This article examines how multinational enterprises navigate compliance under these dual systems and how that compliance is shaped through ...
Yiping Cao
wiley +1 more source
Shuitu Baochi Xuebao, 2018 为了探究双季稻田典型自然降雨径流过程中氮（N）的输出特点，采用田间径流池法，通过长期田间定位试验，比较普通尿素（U）和控释尿素（CRU）减施稻田径流水中总氮（TN）、铵态氮（NH4+-N）和硝态氮（NO3--N）的动态变化及N素径流流失量和流失率。结果表明：稻田施肥初期出现N素径流峰值，是防控N素径流损失的关键时期。早、晚稻季生育期间施N处理径流水中以NH4+-N为主要形态，分别占TN径流损失量的64.5%~66.3%，61.0%~68.6%。早、晚稻季U处理径流水TN流失量（率）分别为5.6（2.2%）
田昌 +7 more
doaj
Intelligent Material Framework for Data Mining and Performance Prediction of Invar Alloy
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Invar alloys exhibit a low coefficient of thermal expansion (CTE) over a wide temperature range and are regarded as critical materials for precision engineering and aerospace applications. In this work, an integrated OLR‐IMF (an intelligent material framework based on optical character recognition [OCR], large language models [LLMs], and ...
Tongbo Jiang +11 more
wiley +1 more source