Results 61 to 70 of about 18,319 (211)
对金沙江流域6种不同林分土壤物理性质、凋落物持水量以及林地土壤贮水性能等进行了研究。结果表明,不同林分的土壤物理性质及其水源涵养功能差异明显。在相同的立地条件下,圣诞树纯林和混交林具有更好的维持地力作用和更高的水源涵养功能。依据林地总贮水量的大小,6种林分最大蓄水量大小依次为圣诞树纯林(2851.8t/hm^2)〉华旱混交林(2478.9t/hm^2)〉云华混交林(2432.4t/hm^2)〉云南松纯林(2142.8t/hm^2)〉华山松纯林(1851.8t/hm^2)〉旱冬瓜纯林(1620.3t/hm^
彭明俊 郎南军 温绍龙 郭永清 江期川 杨旭 郑科 郭玉红 张立新
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Research on the Influence of Moisture State, Microscopic Morphology and Physical Properties of the Resting Dough [PDF]
To study the effect of resting on the quality of frozen dough, the changes in the moisture state of the dough during the resting process (0, 30, 60, 90, 120 min), the moisture distribution of dough and their effects on ice crystal distribution ...
Hua ZHANG +5 more
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ABSTRACT In conventional piezoceramics, the coordinated change between the dielectric constant (εr) and the piezoelectric charge constant (d33) usually limits the piezoelectric voltage constant g33 (g33 = d33/εr), a critical figure of merit for piezoelectric sensors.
Xiaoying Feng +7 more
wiley +1 more source
工业企业从电能消费者转变为产消者的环境生态可持续性仍是个未知数。以水泥产消者为例,基于能值分析方法,提出了光伏发电有效能值可持续发展指数,对分布式光伏发电系统在生命周期内投入的成本和“免费”资源进行统计和综合计算;接着,提出了基于能值指标的绿证与碳抵消电量折算方法,对不同用电模式产生的碳减排效果和电-碳-绿证融合的自然价值进行量化和比较。结果证明,水泥产消者的分布式光伏系统单位功率输出的能值需求低;“自发自用”模式可兼容经济性实现高效减碳;能值指标减小了月度绿证和碳市场的可交易量。据此 ...
蓝静 +4 more
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Molecular Mechanism by Which Oat β-Glucan Enhances Freeze Tolerance in Yeast [PDF]
To investigate the molecular mechanism for the effect of oat β-glucan (OβG) at different concentrations (0.5% and 1%) on freeze tolerance in yeast, yeast cells alone or under the protection of OβG were frozen and thawed up to five times.
YANG Jing, JI Shengxin, CAI Jie, YANG Yong, AI Zhilu, LI Zhen
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ABSTRACT Narrowband near‐infrared (NIR) phosphor‐converted light‐emitting diodes (pc‐LEDs) featuring low full‐width at half maximum (FWHM) and high conversion efficiency are crucial for chemical content evaluation, light therapy, and bioimaging.
Chunshen Li +4 more
wiley +1 more source
川西高山峡谷区森林较高的地表枯落物储量可能具有较好的水文生态效益,但缺乏研究关注。以川西高山峡谷区6种森林为对象,在雨季调查了不同森林地表枯落物的持水和失水特性。结果表明:(1)川西高山峡谷区林地枯落物蓄积量与最大持水量和有效拦蓄量呈显著正相关,林地枯落物蓄积量为6.90~17.49 t/hm2,最大持水量为1.64~5.42 mm,最大持水率为138.18%~330.09%,有效拦蓄量为0.53~3.33 mm,有效拦蓄率为77.57%~203.02%。(2)相对其他森林,亮叶桦(Betula ...
刘一霖 +7 more
doaj
ABSTRACT Against the backdrop of global clean energy transition and surging demand for lithium resources, lithium extraction from salt lakes presents unprecedented development opportunities. Nanofiltration (NF) membrane technology, recognized for its efficiency, energy savings, and environmental benefits, demonstrates significant application potential ...
Wen‐Feng Li +5 more
wiley +1 more source
对胶南沿海沙质海岸5种植被梯度带下9种植被模式的水分物理性状及土壤蓄水功能进行了研究。结果表明:①随着从沿海至内陆的过渡,胶南沙质海岸带营造灌草带-基干林带-丘陵水土保持林-经济林带-农田林网模式的沿海防护林生态网络体系,对改善该地区的土壤水分物理性质起了积极作用,且土壤层蓄水性能均优于海边草甸。②对沙质海岸来说,沿灌草带、基干林带、丘陵水土保持林带、经济林带和农田林网5个不同的梯度带,土壤物理性状逐渐变好,渗透能力逐渐减弱,土壤层的蓄水能力逐渐增强。③各梯度带内,随着植被类型的不同 ...
XIA, XU, LI, WANG
doaj
ABSTRACT Recently, cobalt/nitrogen co‐doped materials have emerged as heterogeneous catalysts to activate peroxymonosulfate (PMS) and have been applied to advanced oxidation processes for environmental remediation. However, their recyclability and reusability remain major barriers to practical application.
Wen‐Kai Zhu +11 more
wiley +1 more source

