Results 21 to 30 of about 1,209 (125)
Rare Metals, EarlyView.ABSTRACT Two‐dimensional (2D) nonlayered niobium nitrides have attracted considerable interest for electrochemical energy storage. However, the synthesis of these materials is hampered by their nonlayered crystal structures, which are characterized by strong three‐dimensional chemical bonding.
Rui Huo +7 more
wiley +1 more source
镁、钾营养及其交互作用对水稻产量、产量构成因素和养分吸收的影响
Shuitu Baochi Xuebao, 2008 在温室条件下,采用土壤盆栽方法研究了Mg,K营养及其交互作用对水稻(Oryza sativa L.)产量、产量构成因素和养分吸收的影响。结果表明,不同Mg,K施用量均显著地影响水稻籽粒产量及其构成因素,而且Mg,K营养之间存在显著的互作效应。适量施用Mg,K肥就能显著地增加水稻产量,中Mg高K施用量的产量最高,比不施肥增产28.4%。当土壤在低K施用量时,有利于水稻植株对Mg,N和P的吸收;但在高K施用量下,则抑制Mg,N和P的吸收。在低K和中K施用量时,低量Mg能促进N,P.K的吸收 ...
丁玉川, 罗伟, 徐国华
doaj
, 2018 为探索低桩机割再生稻高产途径,研究了水稻品种佳辐占再生分蘖节根的萌发特性.结果表明:头季低桩机割后再生季成穗分蘖为倒4、倒5节分蘖及其子蘖;倒4、倒5节分蘖有4个发根节,子蘖有3个发根节,每节萌发5~8条节根.各节节根萌发有恒定叶龄期:当第n节叶片开始伸长时,第n-3节节根开始萌发(节根原基突破茎秆表皮);当第n节叶片刚抽出时(该叶伸长近半),第n-3节少数节根显著伸长;当第n节叶片抽出70%时(该叶定长),第n-3节节根萌发数稳定.倒4、倒5节分蘖在头季机割后约10d,子蘖在头季机割后约20d ...
俞道标 +7 more
core
Analysis of significantly associated regions and candidate genes for dwarf stem trait in Brassica napus based on BSA-sequencing [PDF]
[Objective] The study aims to reveal the genetic loci and candidate genes associated with the dwarf trait in Brassica napus, laying a foundation for the improvement of plant height and the breeding of lodging resistant B. napus varieties.
TA Na, WANG Hao, YANG Zelin, ZHAO Weiguo
core +1 more source
On the Damage Tolerance of Diffusion Bonded Titanium–Aluminum Phase Biomimetic Composites
Rare Metals, EarlyView.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
Dianci bileiqi, 1984 在电瓷生产中,成形设备是很重要的,它直接影响到产品质量和生产效率.对棒形、套管产品尤为明显.因此随着棒形、套管类产品品种不断发展,相应对成形设备提出了不同要求.本文主要对棒形、套管仿形成形机结构设计概况作简要介绍 ...
陈嘉明
doaj
Mapping of Major QTL for Grain Shape and Weight Traits in Rice(Oryza sativa L.) [PDF]
, 2008 水稻特殊种质资源是解析水稻基因组功能的重要途径。水稻粒型（粒长、粒宽和长宽比）和千粒重性状与稻米外观、产量及市场价值密切相关，发掘控制水稻粒型和千粒重的主效基因是当前遗传学家和育种家们共同关注的焦点。本研究采用大粒种（JF171和JF178）和小粒种（JF222和Samba）做亲本，构建两个F2群体——JF171/Samba群体和JF222/JF178群体；应用微卫星标记（simplesequencerepeats,SSR），通过基于目标性状表现型的分离群体分组分析法 ...
张志勇
core
A double-cycle production splitting method and its application to gas wells [PDF]
The production splitting coefficient is a key parameter for predicting gas production and reserves, evaluating gas recovery efficiency, and guiding the optimization of well patterns in multilayer commingled gas reservoirs.
Cuiping XIN +6 more
core +1 more source
Wildlife Letters, EarlyView.This essay describes the context of big game hunting in the western United States in the twenty‐first century from a sociological perspective. Using Ogburn's theory of cultural lag as a guide, it explores the relationship of technology and capitalism to hunting.
Stephen L. Eliason
wiley +1 more source