نتایج جستجو برای: light off temperature

تعداد نتایج: 993429  

2012
Pei-Chen Tseng Rung-Shiang Cheng Yi-Cheng Chang Wen-Shyang Hwang

Society is trending toward ubiquitous networking. This study thus presents a prototype but fully functional system which, in theory, could be expanded worldwide, expediting development of the Internet of Things. Our earlier QoS-aware residential gateway (EmQRG) for real-time class-based queuing bandwidth management is reviewed and experimentally demonstrated in a novel embodiment which includes...

2014
Rainer Kaufmann Christoph Hagen Kay Grünewald

Studying biological structures with fine details does not only require a microscope with high resolution, but also a sample preparation process that preserves the structures in a near-native state. Live-cell imaging is restricted mostly to the field of light microscopy. For studies requiring much higher resolution, fast freezing techniques (vitrification) are successfully used to immobilize the...

Journal: :Plant physiology 1974
T Hoshizaki

We have shown Xanthium strumarium exhibit two distinct leaf movement rhythms with one occurring in continuous light and presumably related to an endogenous rhythm initiated by the "light-on" signal and the other occurring in continuous dark and presumably related to an endogenous rhythm initiated by the "light-off" signal. Characteristic of the light-on rhythm is a sudden and rapid downward mov...

Journal: :Poultry science 2004
I Rozenboim Y Piestun N Mobarkey M Barak A Hoyzman O Halevy

Photostimulation with green light accelerated BW and muscle development of broilers. In experiment 1, temperature sensors were inserted into 50 broiler eggs. The eggs were placed under 5 green light-emitting diode (LED) lamps at an intensity of 0.1 W/m2 at eggshell level for 5, 10, 15, 20, and 25 min (n = 10). Egg temperatures were recorded continuously. A high correlation was found between lig...

Journal: :Energy 2021

Electrically heated catalyst (EHC) is integrated with the exhaust aftertreatment system to reduce cold-start emissions. Implementation of this proposed emission control technology will also provide addition CO 2 and fuel consumption benefits. Developing an energy-efficient heating strategy has shown a significant reduction in time required for catalysts light-off from cold-start. In study, it w...

Journal: :Science China. Materials 2021

Switching on/off single-molecule magnets (SMMs) at room temperature is still a challenge in moleculebased magnets. Herein, two photochromic Ln-based (Ln = Dy, Tb) phosphonate coordinated polymers were synthesized with regulable SMM behavior. The reversible room-temperature photo-coloration was an electron transfer process generation of relatively stable radicals, characterized by structural ana...

2012
Salman B. Inayat Kelly R. Rader Muhammad M. Hussain

With a projection of nearly doubling up the world population by 2050, we need wide variety of renewable and clean energy sources to meet the increased energy demand. Solar energy is considered as the leading promising alternate energy source with the pertinent challenge of off sunshine period and uneven worldwide distribution of usable sun light. Although thermoelectricity is considered as a re...

Journal: :Physical chemistry chemical physics : PCCP 2011
Lei Zhao Tian Ming Huanjun Chen Li Gong Jian Chen Jianfang Wang

Room-temperature phosphorescence has been observed and studied on metal-activator-free mesoporous silica. The mesoporous silica was prepared using a nonionic triblock copolymer as the mesostructure-directing agent. The as-calcined products have a well-ordered porous structure and exhibit strong phosphorescence under ultraviolet light excitation. The luminescence spectra are featured with severa...

Journal: :Tree physiology 1995
J D Alexander J R Donnelly J B Shane

Understory red spruce (Picea rubens Sarg.) trees, between 20 and 50 cm in height and 12 years or more in age, were collected from mid- and high-elevation stands in north-central Vermont and placed in a closed-cuvette system to measure photosynthetic and transpirational responses to photosynthetic photon flux density (PPFD) and temperature. Photosynthesis, dark respiration, transpiration and wat...

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