Results 41 to 50 of about 17,616 (201)

Fingerprint analysis on methyl fatty acid and its applications in microbial study [PDF]

open access: yes, 2007
脂肪酸甲酯谱图分析方法(Fatty Acid Methyl Ester,FAME)是鉴于脂肪酸可作为生物标记物而发展起来的分析技术。本文介绍了FAME谱图分析方法及其在微生物学领域的应用,包括在微生物检测、鉴定和微生物多样性研究中的应用。Fatty acid is an important biomarker.Its application in biology research has become increasingly popular.The method of FAME fingerprint
刘波   +7 more
core  

A Micro‐Nano Flower‐Like Na3V2(PO4)3@C Constructed by Polar‐Driven H‐Bond Engineering Toward High‐Rate Sodium Storage

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The polyanionic compound Na3V2(PO4)3 (NVP) has emerged as a competitive cathode material for sodium‐ion batteries (SIBs), owing to its high‐voltage redox activity (3.4 V vs. the Na+/Na reference couple) and NASICON‐type framework that enables superior ionic conductivity.
Xiaolei Wu   +5 more
wiley   +1 more source

Cu‐Enhanced Medium‐Entropy TiZrCoCrMo Alloys: Balancing Superior Antibacterial and Osteogenic Properties for Orthopedic Implants

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT This study introduces novel nonequiatomic TiZrCoCrMoCux (x = 0, 5, 10; at%) medium‐entropy alloys (MEAx) tailored for orthopedic implants, synergistically combining the biocompatibility of Ti‐based alloys, the wear resistance of CoCrMo alloys, and the antibacterial/osteogenic attributes of Cu. The alloy's microstructure, mechanical properties,
Hang Yu   +9 more
wiley   +1 more source

小叶锦鸡儿固沙群落土壤微生物生物活性的季节动态

open access: yesShuitu Baochi Xuebao, 2011
为探讨科尔沁沙地小叶锦鸡儿固沙群落土壤微生物生物量和酶活性的季节动态规律,选取6,11,24年生人工群落和天然群落为对象,研究了不同土层深度微生物生物量(C、N、P)和脲酶、蛋白酶、蔗糖酶、磷酸单酯酶、脱氢酶和多酚氧化酶的活性随季节的变化特征。土壤按5层取样:0-10cm,10-20cm,20-30cm,30-40cm,40-50cm。结果表明,6~24年生小叶锦鸡人工固沙群落及天然群落土壤微生物生物量表现出明显的季节性变化,微生物生物量C和N为夏季>秋季>春季;微生物生物量P为夏季>秋季 ...
曹成有   +3 more
doaj  

Content and distribution of unprotected soil organic carbon in natural and monoculture plantation forests of Castanopsis kawakamii in subtropical China [PDF]

open access: yes, 2004
通过对福建三明格氏栲天然林及在其采伐迹地上营造的 33年生格氏栲人工林和杉木人工林土壤非保护性有机 C含量及分配的研究 ,结果表明 ,格氏栲天然林 0~ 10 0 cm土层内土壤有机 C贮量分别是格氏栲人工林和杉木人工林的 1.17倍和1.35倍 ,轻组有机 C贮量分别是后两者的 1.6 4倍和 2 .16倍 ,而颗粒有机 C贮量则分别是后两者的 1.6 0倍和 3.4 3倍 ,其土壤轻组有机 C和颗粒有机 C的分配比例亦显著高于后两者。不同林分间差异均以 0~ 10 cm土层为最大 ...
刘艳丽(福建农林大学林学院)   +5 more
core  

生物质磺酸钙对荒漠土壤改良作用的研究 [PDF]

open access: yes, 2019
在实验室条件下,研究了生物质磺酸钙对荒漠沙土的改良作用。结果表明,沙土中添加2%生物质磺酸钙,土壤中有机质、全氮、速效钾、速效磷含量和土壤持水量均显著增加 ...
保雄伟   +3 more
core   +2 more sources

On the Damage Tolerance of Diffusion Bonded Titanium–Aluminum Phase Biomimetic Composites

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The biomimetic design principles of natural structures involve the strategic integration of stiff and compliant phases to synergistically enhance strength and toughness. Its evolutionary refined natural armor, characterized by a specialized microarchitecture, enables superior damage tolerance.
Shuai Tong   +10 more
wiley   +1 more source

Mechanisms of carbon distribution and stability in the photosynthetic processes of plant-soil systems influenced by arbuscular mycorrhizal fungi during reclamation of mining areas [PDF]

open access: yes
Inoculation of Arbuscular Mycorrhizal Fungi (AMF) combined with vegetation restoration has become a key reclamation technology for ecological restoration in mining subsidence.
Dongdong WANG   +3 more
core   +1 more source

Contribution of microcosm experiments to conservation science

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Microcosms, or miniature experimental systems, have been used to develop models and theories in ecology. However, their contribution to conservation science is unclear. We explored the application, design, and impact of microcosms in conservation science from 469 systematically identified articles published from 1986 to 2023.
Eleanor R. Stern   +3 more
wiley   +1 more source

Evaluation of Chlorhexidine‐Containing Shampoos: In Vitro Efficacy Against Staphylococcus pseudintermedius and Lathering Ability

open access: yesVeterinary Dermatology, Volume 37, Issue 1, Page 148-160, February 2026.
Background: The antibacterial efficacy of chlorhexidine shampoo is directly affected by formulation and bathing factors. Hypothesis/Objective: To evaluate the in vitro antibacterial efficacy of chlorhexidine‐containing shampoos at various dilutions and to compare their lathering ability.
Emily E. Binversie   +2 more
wiley   +1 more source

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