Results 31 to 40 of about 31,551 (216)
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Low conductivity and poor oxygen reduction reaction (ORR) catalytic activity limit the bifunctional catalytic performance of layered double hydroxide (LDH) in zinc–air batteries. In this work, an efficient bifunctional electrocatalyst was prepared by loading nitrogen and phosphorus co‐doped carbon quantum dots (NPCQDs) onto a cationic‐vacancy ...
Wenhao Tang +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2007 施用粪肥引起农田氮、磷流失的增加已引起人们广泛的关注。为了解粪肥中添加明矾可否降低农田污染物的流失,采用化学分析与田间试验相结合的方法研究了添加明矾对粪肥中水溶性养分和重金属浓度及施粪肥后农田养分、重金属流失的影响。结果表明,粪肥中添加明矾可大大降低其中的水溶性P和重金属浓度,其中水溶性P的下降幅度达79.3%。添加明矾后,粪肥施入农田形成的径流中P和重金属浓度明显低于不添加明矾的处理。但添加明矾对农田可溶性总N、NO3-N和NH4-N流失的影响不大。粪肥中添加明矾不会引起地表径流中铝浓度明显增加 ...
章明奎, 郑顺安, 王丽平
doaj
Study of the expression of alkaline phosphatase in Amphidinium carterae Hulbert and Cofactor requirement [PDF]
, 2015 磷(P)是浮游植物生长发育必须的营养元素之一，当环境中的无机磷浓度不足时(磷限制)，浮游植物就会通过表达碱性磷酸酶(AP)，以分解环境中的有机磷来维持自己的生长所需。甲藻是海洋生态系统中重要的浮游植物类群，同时也是形成有害藻藻华的主要类群，开展对AP的研究可以帮助我们更清楚地了解在自然海区和形成水华过程中，甲藻利用磷的分子机制及对其自身生长的影响。碱性磷酸酶基因表达的分子机制研究在甲藻中的研究目前刚刚起步，目前该基因的报道仅限于甲藻中个别代表种，如强壮前沟藻 ...
郭辰涛
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT The design of nanoparticles confined in hollow N‐doped carbon structures is crucial for improving the oxygen reduction reaction (ORR) kinetics, yet achieving this remains a significant challenge. In this work, hollow porous nitrogen‐doped carbon encapsulated FeP/Fe2P (H‐FeP/Fe2P) were successfully constructed via a templating method combined ...
Li‐Xia Wang +8 more
wiley +1 more source
, 1989 1983—1984年,测定了东湖水柱总沉降颗粒有机物中的碳、氮、磷、叶绿素a含量和浮游动物数量,以及该湖浮游动、植物优势种的干重/湿重、C/N及C/P比值。利用所得数值计算出其颗粒有机碎屑的沉降速率。东湖这两年的颗粒有机碎屑的沉降速率[g/m~2·a),Ⅰ站分别为10.67与10.97(碳),2.15与2.68(氮)及0.29与0.30(磷);Ⅱ站分别为10.35与7.26(碳),2.17与1.12(氮)及0.22与0.16(磷)。与水柱浮游植物净生产量相比 ...
林婉莲,刘鑫洲
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Veterinary Dermatology, Volume 36, Issue 6, Page 862-869, December 2025.ABSTRACT Background Chronic cases of canine otitis externa (OE) often develop infections with Pseudomonas aeruginosa (PA). Given the organism's high level of resistance, veterinary surgeons often turn to compounded solutions. Limited data describing the stability and potency of compounded ceftazidime (CAZ) solutions are available, which may affect ...
McKenna Snidow +6 more
wiley +1 more source
不同施肥模式对菜-稻轮作农田土壤磷素径流损失与表观平衡的影响
Shuitu Baochi Xuebao, 2019 采用田间小区定位试验（2015—2016年）研究了自然降雨条件下农户习惯性施肥（T1）、减量施肥（T2）及优化施肥（T3）不同施肥模式对太湖流域菜—稻轮作农田土壤磷素径流流失特征和磷素表观平衡的影响。结果表明：菜—轮作农田地表径流排水主要分布于强降雨（梅雨季、台风季）集中的水稻生长季，与降雨量呈显著线性正相关关系。磷素径流流失也集中在水稻季，各处理条件下，其流失量占周年流失总量的比例达74.75%~81.46%。农户习惯性施肥模式（T1）处理条件下，蔬菜季径流总磷平均浓度（0.55 mg/L ...
郭智 +6 more
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福州市不同种植年限茉莉花园土壤碳、氮、磷及生态化学计量比特征
Shuitu Baochi Xuebao, 2022 为了阐明种植年限对茉莉花园土壤碳(C)、氮(N)、磷(P)及其生态化学计量特征的影响, 以福州市种植年限约为3(J-3), 10(J-10), 15(J-15), 30(J-30), >40(J-40)年的茉莉花园为研究对象, 对土壤C、N、P与生态化学计量比及其影响因子进行了测定与分析。结果表明: (1)与J-3相比, 随着种植年限的增加J-10、J-30、J-40土壤容重显著下降29%, 19%和18%(P < 0.05), J-10、J-15、J-30、J-40土壤黏粒含量分别显著降低26 ...
黑杰 +10 more
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The effect of thyroxine on ATP-sensitive potassium channels and cardiolipin synthesis [PDF]
, 2015 甲亢性心脏病（HyperthyroidHeartDisease,HHD）是甲状腺功能亢进（Hyperthyrodism）的严重并发症，严重危害患者的生命健康，但其机制尚未完全阐明。心磷脂（Cardiolipin，CL）是主要位于线粒体内膜的特殊磷脂，在维持正常的线粒体功能中具有至关重要的作用。本课题组前期研究表明甲亢小鼠心脏中心磷脂含量升高，并且心磷脂参与甲亢性心脏病的病理过程。此外，文献资料显示甲亢会引起心磷脂侧链的C18:2的丢失，同时引起侧链中多不饱和脂肪酸含量的增多 ...
侯琦
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Functional Ecology, Volume 39, Issue 10, Page 2889-2904, October 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract In the Southwest Australian Biodiversity Hotspot, the greatest plant species diversity tends to occur on the most phosphorus (P)‐impoverished soils. Many plant species in this P‐impoverished environment release root carboxylates that mobilise soil P which is a more ...
Xue Meng Zhou +5 more
wiley +1 more source