Results 41 to 50 of about 384,705 (165)

Internal physiological drivers of leaf development in trees: Understanding the relationship between non‐structural carbohydrates and leaf phenology

open access: yesFunctional Ecology, Volume 40, Issue 5, Page 1151-1164, May 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant phenology is crucial for understanding plant growth and climate feedback. It affects canopy structure, surface albedo, and carbon and water fluxes. While the influence of environmental factors on phenology is well‐documented, the role of plant intrinsic factors ...
Yunpeng Luo   +8 more
wiley   +1 more source

Assessing the integration of social marketing principles in ivory demand management interventions in China and Southeast Asia

open access: yesConservation Biology, Volume 40, Issue 2, April 2026.
Abstract Consumer demand for ivory perpetuates the unsustainable and illegal killing of African elephants and other wildlife species. Interventions that aim to change consumer behavior are increasingly recognized as a crucial element of demand management. However, poor design and implementation have limited their effectiveness.
Molly R. C. Brown   +2 more
wiley   +1 more source

Residential Demand Side Response Considering Energy Storages and Renewable Energy Sourced Generators

open access: yes, 2017
传统居民侧需求响应策略很少考虑储能和新能源发电环境,难以适应新的发展趋势和遇到的新挑战,如新能源发电的随机性对需求响应策略带来风险成本,电池储能系统的缓冲效果增加了模型求解的复杂度。针对上述问题,研究了含储能及新能源发电的居民侧需求响应策略。考虑了新能源发电随机性和电池缓冲作用,建立了居民侧两阶段随机规划需求响应模型以降低预测误差对需求响应策略带来的风险成本。此外,在模型精度和计算复杂度之间进行了折中,使模型不依赖于复杂的智能算法即可快速求解。通过与不考虑随机性的需求响应策略对比 ...
李超群   +6 more
core  

Risk of Secondary Extinction in the Asian Songbird Trade, as Exemplified by the Selling of Crested Jayshrikes as Master Birds

open access: yesIntegrative Conservation, Volume 5, Issue 1, Page 33-45, March 2026.
The Asian Songbird Crises negatively affects so‐called master birds, species that are used to increase the song complexity of competitive songbirds. We assessed the trade in a master bird, the crested jayshrike, in Indonesia before and after its legal protection.
Vincent Nijman   +11 more
wiley   +1 more source

基于VAR模型的入境旅游需求影响因素研究——以美国客源市场为例 [PDF]

open access: yes, 2010
随着国际旅游业的迅速发展,入境旅游需求逐渐成为学术界研究的热点领域。在利用1980-2008年美国客源市场的相关数据,建立旅游需求与旅游价格、收入、替代价格等变量之间的向量自回归(VAr)模型后,经过grAngEr因果关系检验、脉冲响应函数和方差分解,可以发现美国对中国的旅游需求受到自身的波动、旅游价格、收入水平、替代价格以及特殊事件的影响,并且这种影响具有持续效应。旅游价格、收入水平、替代价格等对美国的旅游需求的影响程度存在差异。江门市哲学社会科学规划项目 ...
黄福才, 王纯阳
core  

OLP技术及其实现机制问题分析

open access: yesGuangtongxin yanjiu, 2011
随着业务需求的剧增,业内对直接承载业务的传输系统的安全性提出了更高的要求,OLP(光纤线路自动切换保护)以其响应速度快、切换时间短等特点,在高速率光传输网中获得了广泛应用,但同时也给网络的维护管理带来了新的问题和挑战。文章从OLP机制的原理入手,深入剖析OLP在现网应用中存在的实际问题,创新性地提出了OLP改进方案,该方案能更快、更好地适应未来业务质量的实际需要。
王占京, 陈婧华
doaj  

Progress in Surface‐Enhanced Raman Scattering‐Based Volatile Organic Compounds Detection: Materials, Application, and Prospects

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang   +11 more
wiley   +1 more source

Laser‐Driven Halide Exchange and High‐Resolution Multicolor Patterning of Perovskite Films

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Translating the excellent properties of metal halide perovskites (MHPs) into practical flexible optoelectronic devices requires high‐resolution multicolor patterning techniques that are compatible with post‐fabrication processing. However, such a capability has remained elusive.
Shu Yang   +6 more
wiley   +1 more source

多媒体应用的网络需求及新一代网络技术综述 [PDF]

open access: yes, 2001
首先分析了多媒体应用的网络需求 ,包括带宽、QoS和多播支持 ,然后介绍了一些现有网络技术和协议 ,包括新的通信技术、RSVP(资源预留协议 ...
洪雪玉, 陈启安
core  

Status quo of recognition of nursing staff on inpatients’ demands and satisfaction

open access: yesHuli yanjiu, 2005
[目的]了解护理人员对住院病人护理需求及满意度认可情况。[方法]选择综合性医院护理人员220人,采用问卷调查的方法调查护理人员对住院病人需求及满意度的认可状况。[结果]护理人员认可住院病人的需求范围广泛;护理人员的年龄、工龄与所在科室影响其对住院病人生理舒适方面需求的认可程度,护理人员认为住院病人对护理工作的总体满意度较高,其中外科护理人员对住院病人对家属陪伴方面满意度的认可程度高于内科护理人员。[结论]护理人员应能够正确评价病人需求及满意度,及时准确地实施护理,从而使病人各方面的需求得到满足。
李淑迦, 邵文利, 杨莘, 应波
doaj  

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