Medieval Field Systems

2021 ◽  
pp. 25-55
Author(s):  
Trevor Rowley
Keyword(s):  
Author(s):  
J. Langmore ◽  
M. Isaacson ◽  
J. Wall ◽  
A. V. Crewe

High resolution dark field microscopy is becoming an important tool for the investigation of unstained and specifically stained biological molecules. Of primary consideration to the microscopist is the interpretation of image Intensities and the effects of radiation damage to the specimen. Ignoring inelastic scattering, the image intensity is directly related to the collected elastic scattering cross section, σɳ, which is the product of the total elastic cross section, σ and the eficiency of the microscope system at imaging these electrons, η. The number of potentially bond damaging events resulting from the beam exposure required to reduce the effect of quantum noise in the image to a given level is proportional to 1/η. We wish to compare η in three dark field systems.


2017 ◽  
Vol 25 (101) ◽  
pp. 402-408
Author(s):  
Boris B., Kobyljanskij ◽  
◽  
Valery V., Kolomiec ◽  
Boris I., Kuznetsov ◽  
Tatyana B., Nikitina ◽  
...  

2012 ◽  
Author(s):  
Gregory Lowry ◽  
Tanapon Phenrat ◽  
Fritjof Fagerlund ◽  
Tissa Illangasekare ◽  
Paul Tratnyek ◽  
...  

1994 ◽  
Vol 60 (1) ◽  
pp. 287-370 ◽  
Author(s):  
John Barnatt ◽  
Pauline Beswick ◽  
Frank M. Chambers ◽  
John Evans ◽  
Daryl Garton ◽  
...  

Excavations at Eaglestone Flat, on the gritstone eastern uplands of the Peak District, have revealed a Bronze Age cremation cemetery associated with a number of contemporaneous stone structures built for ritual and agricultural purposes. Some of the burials were within urns, mostly cordoned. Others were simply placed in pits whilst still hot. A minority were deposited in direct association with small cairns, either placed under or within them. The majority were on open ground near the stone features and adjacent to the upslope edge of a prehistoric field. Most of the stone structures are clearance features associated with the preparation and cultivation of the land close by over an extended period. They are found in a complex palimpsest, which includes structures of unusual design, such as retained rectangular platforms, and discontinuous walls that were only ever 1–2 courses high and probably surmounted by low banks. A series of radiocarbon results adds to knowledge of the date at which Peak District cairnftelds and field systems were built. Environmental data allows vegetational sequences to be reconstructed.


2019 ◽  
Vol 64 (8) ◽  
pp. 3461-3468 ◽  
Author(s):  
Qingyuan Qi ◽  
Huanshui Zhang ◽  
Zhen Wu

2020 ◽  
Vol 80 (12) ◽  
Author(s):  
A. R. Aguirre ◽  
E. S. Souza

AbstractWe present the explicit construction of some multi-scalar field theories in $$(1+1$$ ( 1 + 1 ) dimensions supporting BPS (Bogomol’nyi–Prasad–Sommerfield) kink solutions. The construction is based on the ideas of the so-called extension method. In particular, several new interesting two-scalar and three-scalar field theories are explicitly constructed from non-trivial couplings between well-known one-scalar field theories. The BPS solutions of the original one-field systems will be also BPS solutions of the multi-scalar system by construction, and therefore we will analyse their linear stability properties for the constructed models.


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