Results 21 to 30 of about 1,257 (56)
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Lignin is a natural non‐toxic polyphenolic macromolecule, which shows inherent antioxidant and broad‐spectrum antibacterial activities. However, due to the low content and the high bond dissociation energy of phenolic hydroxyl groups (Ar‐O·H), its antioxidant and antibacterial activities are relatively weak, which limits its application as a ...
Meiling Han +10 more
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Shuitu Baochi Xuebao, 2000 干旱缺水是提高干热河谷旱坡地粮食产量和提高植树造林成活率的主要制约因素。为了充分利用有限的降水，进行了旱坡地“地下地膜隔水墙”节水农业（节水造林）技术及果树节水灌溉栽培试验。结果表明，旱坡地粮食增产6.5%-20.2%，造林成活率提高20%-30％，果树栽培节水率60％－80％，且生长良好。
张建平 严俊华 等
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Gongye shui chuli, 2023 针对某焦化厂焦化废水经生化+Fenton氧化处理后的出水可生化性差、COD及电导率高的特点，设计了“多介质过滤+活性炭吸附+超滤（UF）+反渗透（RO）+电渗析（ED）”组合回用处理工艺对废水进行处理。运行结果表明，活性炭吸附塔可有效去除Fenton氧化后废水中的COD，COD去除率达到30%~50%；经过多介质过滤器、活性炭吸附塔、超滤后，反渗透产水率可达到82%，脱盐率大于98%；电渗析装置可有效去除RO浓水含盐量，脱盐率约65%，产水率约55 ...
门枢, 王凯, 杨飞
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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
Gongye shui chuli, 2002 采用细胞生长抑制率、用MTT比色法测量细胞的增殖毒性和用流式细胞光度计测量细胞的凋亡率三项细胞毒性指标,评价了 5种国产活性炭处理饮用水 3a后的使用效果。实验表明 4号活性炭仍具有-定的吸附功能,其他 4种活性炭已经失去吸附过滤作用。此外还对 ...
李艳平 +4 more
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Prenatal detection and outcome of major heart defects in a country with universal screening
Ultrasound in Obstetrics &Gynecology, Volume 68, Issue 1, Page 44-50, July 2026.ABSTRACT Objective To evaluate the Danish prenatal screening program for major fetal congenital heart defects (mCHD), focusing on incidence, detection rates (DRs), pregnancy outcomes and postnatal mortality. Methods This was a 5‐year nationwide cohort study conducted from January 2018 to December 2022 in Denmark.
C. Vedel +15 more
wiley +1 more source
Shuitu Baochi Xuebao, 2018 为提高磷钾肥的有效性，减少磷钾肥固定及淋失，提高作物产量，节约农业资源和减少面源污染，研制超微细磷钾—活化剂肥，通过盆栽小白菜试验，研究该肥对小白菜的产量、品质、土壤养分含量及肥料利用率的影响。以常规磷钾肥和添加腐殖酸磷钾肥为对照，研究磷钾肥与腐殖酸、沸石粉、硅藻土活化剂不同配比并磨细制造超微细磷钾—活化剂肥施肥效果，共9个处理。结果表明：超微细磷钾—活化剂肥显著提高了小白菜的产量，增产率达13.22%~35.14%；超微细磷钾—腐殖酸—沸石粉肥、超微细磷钾—腐殖酸—硅藻土肥、超微细磷钾肥—腐殖酸 ...
王桂伟 +6 more
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Ultrasound in Obstetrics &Gynecology, Volume 68, Issue 1, Page 88-98, July 2026.ABSTRACT Objective To identify prenatal predictors of tuberous sclerosis complex (TSC) in fetuses with one or more cardiac rhabdomyomas (CR), evaluate an integrated multimodal diagnostic workflow using fetal magnetic resonance imaging (MRI) and trio whole‐exome sequencing (trio‐WES) and characterize perinatal outcomes.
X. Cai +8 more
wiley +1 more source
Functional Ecology, Volume 40, Issue 7, Page 2332-2344, July 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometric ratios of carbon (C), nitrogen (N) and phosphorus (P) serve as important indicators for assessing nutrient balance in forest ecosystems, but their relationships with photosynthetic dynamics require deeper characterization.
Minghao Chen +9 more
wiley +1 more source
Zhongshan Daxue xuebao. Yixue kexue ban, 2020 目的探讨体外受精（IVF）周期获卵≤3枚胚胎移植策略。方法回顾性分析2017年1月至2019年4月于中山大学附属第六医院生殖医学研究中心行IVF/ICSI助孕患者共1 600个周期，分为3组：1组：新鲜周期D3移植（615例），2组：复苏周期D3移植（525例），3组：复苏周期囊胚移植（460例），收集3组患者助孕资料，多因素回归分析比较3组间的生化妊娠、临床妊娠及活产情况。结果3组患者年龄、基础FSH、AMH无明显差别，t检验结果均P>0.05，即两组数据总体一般资料无差异。1组与2组相比 ...
李婷婷, 陈攀宇, 王艳芳, 方丛
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