scholarly journals PORBS: A parallel observation-based slicer

2016 ◽  
Author(s):  
Syed Islam ◽  
David Binkley
Keyword(s):  
Parallel Observation

On the Relation of Political Science and Economics

1960 ◽  
Vol 54 (1) ◽  
pp. 3-14 ◽  
Author(s):  
Joseph Cropsey
Keyword(s):  
Political Science ◽  
Economic Activity ◽  
Legal Framework ◽  
Economic Life ◽  
Political Activity ◽  
Economic Interest ◽  
Labor Economic ◽  
Mutual Interest ◽  
Economic Foundations ◽  
Parallel Observation

That politics and economic life have much to do with each other is a remark matched in self-evidence only by the parallel observation that political science and economics are of mutual interest. All the more striking then is the difficulty one meets in attempting to state with precision how politics and economic life, or how political science and economics are related.Consider for example the view that politics is the ceaseless competition of interested groups. Except under very rare conditions, as for instance the absence of division of labor, economic circumstances will preoccupy the waking hours of most men at most times. Their preoccupations will express themselves in the formation of organizations, or at least interested groups, with economic foundations. Politics, so far as “interest” means “economic interest” (which it does largely, but not exclusively), is the mutual adjustment of economic positions; and to that extent, the relation between politics and economic life seems to be that political activity grows out of economic activity. But the competition of the interests is, after all, an organized affair, carried out in accordance with rules called laws and constitutions. So perhaps the legal framework, the construction of which surely deserves to be called political, supervenes over the clashing of mere interests and even prescribes which interests may present themselves at the contest. Thus politics appears to be primary in its own right.

Parallel Observation Matching System for crafting overlaid science for the Hubble Space Telescope

2000 ◽  
Author(s):  
Alan P. Patterson ◽  
Ronald C. Henry ◽  
Mike Butschky ◽  
Andy Lubenow
Keyword(s):  
Hubble Space Telescope ◽  
Space Telescope ◽  
Parallel Observation

RHEOLOGICAL SYNERGISTIC EFFECTS OF ELECTRIC AND MAGNETIC FIELDS IN IRON PARTICLE SUSPENSION

1996 ◽  
Vol 10 (23n24) ◽  
pp. 3067-3072 ◽  
Author(s):  
KIYOHITO KOYAMA
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Parallel Plate ◽  
Synergistic Effects ◽  
Iron Particle ◽  
Particle Suspension ◽  
Parallel Field ◽  
Electric And Magnetic Fields ◽  
Particle Chains ◽  
Parallel Observation

The effects of electric field and/or magnetic field on the rheological property of iron suspension were studied by use of parallel-plate rheometers developed for electro-magnetorheological (EMR) measurements. The EMR effect, which is defined as an increase in the shear stress under combined fields, was dependent on the strength and direction of the fields. In particular, significant synergism was found in the EMR effect when the electric and magnetic fields were applied in parallel. Observation of the suspensions solidified in parallel field and crossed field conditions revealed different structures of aggregated particles for these combined fields. The parallel field induced many chains along the field, while the crossed field induced a network structure. It is concluded that the synergistic EMR effect in parallel field is due to the increase in the number of particle chains bridging the plates.

Apatite as an interesting seed to remove phosphorus from wastewater in constructed wetlands

2005 ◽  
Vol 51 (9) ◽  
pp. 193-203 ◽  
Author(s):  
P. Molle ◽  
A. Liénard ◽  
A. Grasmick ◽  
A. Iwema ◽  
A. Kabbabi
Keyword(s):  
Constructed Wetlands ◽  
Surface Waters ◽  
Ionic Composition ◽  
Calcium Content ◽  
Phosphorus Retention ◽  
Negative Effects ◽  
Long Term Retention ◽  
Sorption Mechanisms ◽  
Parallel Observation

Intensive use of phosphates has resulted in high P levels in surface waters and therefore eutrophication problems. Over the last decade many studies have revealed the advantage of using specific materials with efficient phosphorus retention capacities. Recent studies state that Ca materials are of particular interest for long-term retention of P, but can induce negative effects. To improve P retention and avoid negative counter-effects we tested the potential of natural apatites. Apatite sorption was evaluated using batch and open reactor experiments. Batch experiments identify sorption mechanisms and the influence of the ionic characteristics of the solution; open reactor experiments evaluate sorption capacities in relation to the ionic composition of the solution and biomass development. In parallel, observation of the material by electron microscopy was used to give more precision information about the mechanisms involved. This work reveals the strong chemical affinity between apatites and phosphorus. Compared to other calcareous materials apatite is better able to maintain low outlet P levels. After more than 550 days feeding, sorption was still present and low P outlet levels were still being obtained when sufficient contact time and calcium content in the solution were ensured. This work demonstrates the advantages of using apatites for phosphorus removal in constructed wetlands. The behaviour of apatite in phosphorus retention is explained and its suitability for use in such extensive systems defined.

scholarly journals Development of Pneumatic Servo Bearing Actuator for Nanometer Positioning

2009 ◽  
Vol 3 (3) ◽  
pp. 249-256 ◽  
Author(s):  
Masato Kadotani ◽  
◽  
Takakazu Kitagawa ◽  
Satoshi Katto ◽  
Tomoko Hirayama ◽  
...  
Keyword(s):  
Open Loop ◽  
Step Response ◽  
Open Loop Control ◽  
Aerostatic Bearing ◽  
Loop Control ◽  
Servo Valve ◽  
Parallel Observation

The ‘pneumatic servo bearing actuator (PSBA)’ that consists of an aerostatic bearing and a servo valve was proposed and developed for ultraprecise positioning. In the actuator, pressurized air controlled by the servo valve moves an actuated spool ultra-precisely. Even under open-loop control, the PSBA provided accurate replication and positioning resolution on a nanometer order. Applying simple positioning feedback and parallel observation that estimates the disturbance into the system increased the actuator stiffness to be almost infinite and promoted a sharp step response without drift and hysteresis, and thus the minimum positioning resolution of prototype PSBA was about 1 nm.

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