Results 31 to 40 of about 29,756 (163)
Shuitu Baochi Xuebao, 2004 研究了不同浓度的各种无机酸对褐煤中腐殖酸含量、CEC及其光学性质变化规律的影响。试验结果表明:H_3PO_4和HCl处理能在一定程度上提高阳离子交换能力,但对腐殖酸含量及光学性质基本无影响。一定强度的HNO_3能使腐殖酸含量增加25％以上,阳离子交换能力有了很大程度提高,且随硝酸强度的变化过程要明显滞后于腐殖酸含量的变化过程,光学性质发生了很大变化。不同褐煤达到最佳处理效果的条件也不尽相同。
刘方春 邢尚军 刘春生 马海林 马丙尧 付连刚
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Driven by global energy transition and sustainability, sodium‐ion batteries (SIBs) have emerged as key alternatives to lithium‐ion batteries for low‐to‐medium energy storage, because of abundant sodium resources and low cost. However, their commercialization is hindered by the lack of anodes with high capacity, fast kinetics, and long‐term ...
Shuang‐Lin Cai +13 more
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Shuitu Baochi Xuebao, 2007 选择酸性紫色土,研究pH和有机酸对紫色土吸附镉的影响。结果表明,pH在1.0~5.0的范围内,Cd2 的解吸率从接近100%急剧降低到20.0%。当pH>5.0,Cd2 的解吸率缓慢下降。相对较低的有机酸浓度(≤10-3mol/L)限制了Cd2 解吸,而较高的有机酸浓度则增加了Cd2 的解吸。柠檬酸和醋酸在较高浓度(>10-3mol/L)时极大地促进了Cd2 的解吸,其次是苹果酸,最小的是酒石酸。
周鑫斌, 黄建国, 赖凡
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リンゴ コウギョク カジツ ノ セイリテキ ショウガイ ニカンスル ケンキュウ ダイ1ホウ : サイシュウ ジキ カジツ ナイ チッソ ガンリョウト セイリテキ ショウガイ ハツゲン トノ カンケイ [PDF]
, 1959 【緒言】 ジョナサン・スポット及びゴム病は紅玉果実の主要な生理的障害であるが，何れも未だに発生の原因は明らかにされていない.ジョナサン・スポットについては，H.H.Plagge氏等は貯蔵中に果実内の酸度低下の少ないものではスポットの発現が多いことを認め果実内の酸量の消長がスポットの発生を左右すると推論し，実際的には低混貯蔵が発生の防止に効果的であると述べている.W.T.Pentzer氏も罹病果における各部位のpHを測定し，スポットの部分の酸度の低いことが組織の黒変をもたらすのであろうと考えため.R.M ...
苫名 孝
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Sodium metal batteries (SMBs) are regarded as promising candidates for next‐generation energy storage systems owing to their high theoretical energy density and low cost. However, their practical development is hindered by the instability of the electrode–electrolyte interphase (EEI), particularly under high‐voltage operation.
Xingyu Yang +10 more
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Shuitu Baochi Xuebao, 2011 模拟东北林区森林凋落物淋洗液中低分子有机酸浓度范围,研究了不同浓度外源草酸、柠檬酸溶液对暗棕壤中P、Fe、K等养分元素有效性、以及落叶松和水曲柳幼苗吸收P、Fe、K的影响.结果表明,合适浓度的草酸和柠檬酸促进暗棕壤中磷的活化,并促进落叶松和水曲柳苗木根系对磷的吸收,但较高浓度时(50.0 mmol/L)水曲柳叶片含磷量却降低;合适浓度草酸和柠檬酸促进暗棕壤中Fe、K等金属元素的活化释放,并促进落叶松和水曲柳幼苗对Fe、K的吸收和运输;在有机酸活化土壤P、Fe、K养分、促进林木吸收的过程中 ...
宋金凤, 崔晓阳, 王政权
doaj
The Experimental Study of Substitute Bladder from the Segment of Stomach 3.The Influence of the Sympathomimetic and Parasympathomimetic Drugs and that of the Volume of Injected Fluid upon the Absorption by the Segment of Stomach [PDF]
, 1958 The influence of several sorts of sympathomime t ic and parasympathomimetic drugs and that of the volume of injected fluid upon the absorption of chlorine by the segment of stomach were investigated for the purpose of controlling this treatment.
渡辺, 克
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Formic acid (FA) is considered to be a safe and convenient hydrogen source; however, achieving controlled and efficient FA dehydrogenation under mild conditions using stable solid catalysts remains a significant challenge. Pd‐based catalysts have been extensively studied due to their superior catalytic activity to other metal catalysts.
Shuai Wei +10 more
wiley +1 more source
Dianci bileiqi, 1987 对磷酸—有机添加剂与电瓷干坯强度间的关系做了探索性的研究。认为磷酸（盐）能大幅度地提高电瓷干坯的强度,其中以磷酸的效果最明显。如选择适当分子量和聚合度的高分子化合物组成磷酸—有机添加剂,则能使强度提高了的坯体保持良好的上釉性能。
李玉书, 黄建中, 张晓贺
doaj
Maturation control of fresh fruits stored in modified atmosphere packages [PDF]
, 2002 Thesis (Ph. D. in Agriculture)--University of Tsukuba, (A), no.
Addo Ahmad
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