Efficient management of seal water and resources using “non-flow” mode of operation

2020 ◽  
Vol 2020 (4) ◽  
pp. 7-8
Author(s):  
Simon Atkinson
2014 ◽  
Vol 1334 ◽  
pp. 16-19 ◽  
Author(s):  
Arianne Soliven ◽  
Dominic Foley ◽  
Luisa Pereira ◽  
Gary R. Dennis ◽  
R. Andrew Shalliker ◽  
...  

2010 ◽  
Vol 148 (2) ◽  
pp. 522-530 ◽  
Author(s):  
A. Szczurek ◽  
M. Maciejewska ◽  
B. Flisowska-Wiercik ◽  
L. Bodzoj

Author(s):  
L. Gandolfi ◽  
J. Reiffel

Calculations have been performed on the contrast obtainable, using the Scanning Transmission Electron Microscope, in the observation of thick specimens. Recent research indicates a revival of an earlier interest in the observation of thin specimens with the view of comparing the attainable contrast using both types of specimens.Potential for biological applications of scanning transmission electron microscopy has led to a proliferation of the literature concerning specimen preparation methods and the controversy over “to stain or not to stain” in combination with the use of the dark field operating mode and the same choice of technique using bright field mode of operation has not yet been resolved.


Author(s):  
J. M. Cowley

The comparison of scanning transmission electron microscopy (STEM) with conventional transmission electron microscopy (CTEM) can best be made by means of the Reciprocity Theorem of wave optics. In Fig. 1 the intensity measured at a point A’ in the CTEM image due to emission from a point B’ in the electron source is equated to the intensity at a point of the detector, B, due to emission from a point A In the source In the STEM. On this basis it can be demonstrated that contrast effects In the two types of instrument will be similar. The reciprocity relationship can be carried further to include the Instrument design and experimental procedures required to obtain particular types of information. For any. mode of operation providing particular information with one type of microscope, the analagous type of operation giving the same information can be postulated for the other type of microscope. Then the choice between the two types of instrument depends on the practical convenience for obtaining the required Information.


Author(s):  
H. M. Thieringer

It has repeatedly been show that with conventional electron microscopes very fine electron probes can be produced, therefore allowing various micro-techniques such as micro recording, X-ray microanalysis and convergent beam diffraction. In this paper the function and performance of an SIEMENS ELMISKOP 101 used as a scanning transmission microscope (STEM) is described. This mode of operation has some advantages over the conventional transmission microscopy (CTEM) especially for the observation of thick specimen, in spite of somewhat longer image recording times.Fig.1 shows schematically the ray path and the additional electronics of an ELMISKOP 101 working as a STEM. With a point-cathode, and using condensor I and the objective lens as a demagnifying system, an electron probe with a half-width ob about 25 Å and a typical current of 5.10-11 amp at 100 kV can be obtained in the back focal plane of the objective lens.


2018 ◽  
Vol 3 (6) ◽  

The issue that underlies a worrying question of maternal and child health in Côte d'Ivoire is that of social logic. Social logic is perceived as "cultural constructions of actors with regard to morbidity that cause to adopt reproductive health care". Based on this understanding, the concept of social logic in reproductive health is similar to a paradigm that highlights the various factors that structure and organise sociological resistance to mothers' openness to healthy reproductive behaviours; that is, openness to change for sustainable reproductive health. Far from becoming and remaining a prisoner of blind culturalism with the social logic that generates the health of mothers, new-borns and children, practically-relevant questions are raised. Issues of "bad governance", socio-cultural representations and behaviours in conflict with modern epidemiological standards are addressed in a culturally-sensitive manner, an important issue for the provision of care focused on the needs of mothers seeking answers to health problems. Developing these original community characteristics helps to orient a reading list in a socioanthropological perspective with a view to explaining and understanding different problems encountered, experiences acquired by social actors during the implementation of antenatal, postnatal and family planning care. This context of building logic with regard to reproductive health care is key to identifying real bottlenecks in maternity services and achieving efficient management of maternal, new-born and child health care for the benefit of populations and actors in the public health sector.


2003 ◽  
Vol 780 ◽  
Author(s):  
P. Thomas ◽  
E. Nabighian ◽  
M.C. Bartelt ◽  
C.Y. Fong ◽  
X.D. Zhu

AbstractWe studied adsorption, growth and desorption of Xe on Nb(110) using an in-situ obliqueincidence reflectivity difference (OI-RD) technique and low energy electron diffraction (LEED) from 32 K to 100 K. The results show that Xe grows a (111)-oriented film after a transition layer is formed on Nb(110). The transition layer consists of three layers. The first two layers are disordered with Xe-Xe separation significantly larger than the bulk value. The third monolayer forms a close packed (111) structure on top of the tensile-strained double layer and serves as a template for subsequent homoepitaxy. The adsorption of the first and the second layers are zeroth order with sticking coefficient close to one. Growth of the Xe(111) film on the transition layer proceeds in a step flow mode from 54K to 40K. At 40K, an incomplete layer-by-layer growth is observed while below 35K the growth proceeds in a multilayer mode.


2018 ◽  
Vol 11 (1) ◽  
pp. 39
Author(s):  
Vyacheslav Vavilov ◽  
Flur Ismagilov ◽  
Irek Khayrullin ◽  
Ruslan Dinarovich Karimov

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