Results 51 to 60 of about 34,740 (207)

Scaling from microsite to landscape to resolve litter decomposition dynamics in globally extensive drylands

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop   +8 more
wiley   +1 more source

Existence of single and multiple positive solutions of singular boundary value problem(一类奇异边值问题正解的存在性及多解性)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2017
应用Dancer全局分歧理论,研究奇异边值问题正解的存在性和多解性,其中f:[0,1]×[0,∞)→[0,∞)连续.给出了关于此类问题正解存在的充分条件,该充分条件与相应线性问题的第1个特征值有关,且所涉及的值是最优的.
YANDongming(闫东明)
doaj   +1 more source

Jellyfish blooms restructure plankton dynamics and trophic linkages in coastal waters

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Jellyfish blooms are increasing globally in frequency and intensity, introducing complex ecological interactions, yet the mechanisms by which they alter ecosystem structure remain poorly characterized due to a lack of sustained field observations.
Pengpeng Wang   +4 more
wiley   +1 more source

On the steady state bifurcation of the binary alloys system(二元体相分离模型的静态分歧)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2019
运用非线性分歧理论,研究二元体相分离模型的静态分歧,给出了一个与该模型线性问题第一特征值相关的临界值。当参数超过该临界值时,二元体相分离模型有静态分歧发生,此时相应的二元体有相分离现象发生。此外,提出影响二元体相分离现象发生的主要因素是晶格间距和二元体所在区域的形状。
YANDongming(闫东明)
doaj   +1 more source

Silencing of juvenile hormone‐related genes through RNA interference leads to molt failure and high mortality in the spongy moth

open access: yesInsect Science, EarlyView.
The feasibility of using RNA interference to control the globally important quarantine pest, the spongy moth. Targeting genes related to JHs play an important role in the growth and development of insects. First, the open reading frames (ORFs) of Ldjhamt and Ldjheh were identified and characterized, and the target genes were cloned and double‐stranded ...
Wenzhuai Ji   +3 more
wiley   +1 more source

Design and Implementation of Peer to Peer Credit Risk Management System Based on Big Data Analysis [PDF]

open access: yes, 2015
作为互联网金融典型代表,P2P网络借贷引起社会各方面的高度关注。同时受经济全球化和全球信息化、人类社会发展和需求多样性、云计算和物联网技术深化应用等方面的影响,“大数据”(bigdata)已经成为IT领域和互联网上反复提及的热词。国内P2P网贷行业面临的系统风险、信用风险、平台风险等正在不断积累、扩大,如何有效防范P2P网络借贷风险迫在眉睫。本文从国内典型的P2P平台拍拍贷中抓取实际有效的数据,经过本系统分析得到结果,希望能够对P2P行业具有一定的指导作用 ...
郑旭
core  

Multi‐barcoding‐based species identification using a hierarchical attention network with staged curriculum learning

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract DNA barcode‐based species identification has become pivotal in biodiversity research. Current barcoding‐based deep learning methods have advantages in species identification but exhibit significant limitations. By using COI barcoding alone, previous studies were unable to fully capture species identification features. Prior methods showed that
Bin Ye   +4 more
wiley   +1 more source

The research on G-shadowing property and G-periodic shadowing property(G-跟踪性和G-周期跟踪性研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2023
研究了度量G-空间中G-跟踪性与G-周期跟踪性之间的动力学关系,给出了G-跟踪性和G-周期跟踪性的定义,利用等价映射和伪等价映射的性质,得到:(1)设(X,d)为紧致度量G-空间,G为可交换的紧致群,f:X→X等价,若f具有G-周期跟踪性,则PG(f)¯=CRG(f);(2)设(X,d)为紧致度量G-空间,G为紧致群,f:X→X等价,若f具有G-跟踪性且PG(f)=WG(f),则f具有G-周期跟踪性;(3)设(X,d)为紧致度量G-空间,G为可交换的紧致群,f:X→X伪等价,若f为G-扩张映射且f具有G-
冀占江(JI Zhanjiang)
doaj   +1 more source

The Research of Electronic Data Assets Evaluation Method [PDF]

open access: yes, 2016
纵观互联网发展的历程,数据的传输起了翻天覆地的变化。互联网发展的20多年里,伴随大数据时代、云时代相继到来,给传统的行业注入新的元素,同时也铸造了如计算机、互联网相关的行业。本文旨在对电子数据资产这一重要的新资产的价值评估方法进行初步的研究,根据国内外相关文献和自身理解针对电子数据和资产各自特性的进行融合,重点讨论其定义、价值体现形式、性质特征以及分类方式。在此理论基础上,结合电子数据资产的特性分析传统评估方法和无形资产创新性评估方法在数据资产的评估适用性。针对现有评估方法的缺陷以及数据资产固有特性 ...
蔡少俊
core  

管我们是因为爱我们 To Guan Us Is to Love Us: Understanding Guan Through Adolescent Perceptions

open access: yesChildren &Society, EarlyView.
ABSTRACT This paper investigates how children interpret the practice of guan (Chinese parenting) within the home and its relationship to family language policy (FLP). The study involved nine adolescent participants from six families. Using a written reflective task, the study explores the attitudes of adolescents towards the practice of guan and its ...
Angie Baily   +1 more
wiley   +1 more source

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