Results 21 to 30 of about 1,588,103 (165)
, 2017 Food security is a pressing global issue. New approaches are required to break through a yield ceiling that has developed in recent years for the major crops.
Griffiths, C. A. +4 more
core +1 more source
, 2022 Ground motion ampli¯cation has been observed in most earthquakes triggered near the sediment-¯lled basins such as 2015 Nepal and 1999 Chi–Chi events.
Somala, Surendra Nadh, Parla, Rajesh
core +1 more source
The trigger mechanism of low-frequency earthquakes on Montserrat. [PDF]
, 2006 A careful analysis of low-frequency seismic events on Soufrie`ere Hills volcano, Montserrat, points to a source mechanism that is non-destructive, repetitive, and has a stationary source location.
Dingwell, Donald B +5 more
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Near field enhancements from angled surface defects : a comparison of scanning laser source and scanning laser detection techniques [PDF]
, 2011 Enhancement of the Rayleigh wave signal amplitude at a surface defect, due to interference of incident, reflected and mode converted waves, has been reported by several authors, and it has been suggested that this could be used as a fingerprint of the ...
Edwards, R. S. (Rachel S.) +5 more
core +1 more source
Source mechanism of Saturn narrowband emission [PDF]
, 2010 Narrowband emission (NB) is observed at Saturn centered near 5 kHz and 20 kHz and harmonics. This emission appears similar in many ways to Jovian kilometric narrowband emission observed at higher frequencies, and therefore may have a similar source ...
null null +10 more
core +1 more source
, 2016 One of the key works in applied metamorphic mechanism design is to obtain the source metamorphic mechanism and the constraint forms and structures of metamorphic joints to carry out given working tasks.
Wang HG(王洪光) +3 more
core
Mechanism of Calcite Co-Orientation in the Sea Urchin Tooth [PDF]
, 2009 Sea urchin teeth are remarkable and complex calcite structures, continuously growing at the forming end and self-sharpening at the mature grinding tip. The calcite (CaCO{sub 3}) crystals of tooth components, plates, fibers, and a high-Mg polycrystalline ...
Gilbert, P. U. P. A. +13 more
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Business Models and Community Relationships of Open Source Software Firms
, 2006 One important mechanism determining an Open Source Software (OSS) firm's possibility to create a sustainable business model and an advantage vis-à-vis its competitors is the relations it may have with OSS communities.
Magnusson, Mats, +3 more
core +1 more source
Efficiency of Nonpoint Source Pollution Instruments with Externality Among Polluters:An Experimental Study. [PDF]
In nonpoint source pollution problems, the regulator does not observe each polluter’s individual emission, which prevents him from using the conventional policy instruments. Therefore new instruments have been designed to regulate this type of pollution.
Marc Willinger +2 more
core
, 2015 Norcoclaurine synthase (NCS) (EC 4.2.1.78) catalyzes the Pictet-Spengler condensation of dopamine and an aldehyde, forming a substituted (S)-tetrahydroisoquinoline, a pharmaceutically important moiety.
Nicholas H. Keep +23 more
core +1 more source