Design and control of next generation distribution frames

2011 ◽  
Author(s):  
Davide Cuda ◽  
Paolo Giaccone ◽  
Massimo Montalto
Keyword(s):  
Next Generation ◽  
And Control

scholarly journals A Tip–Tilt and Piston Detection Approach for Segmented Telescopes

Photonics ◽  
2020 ◽  
Vol 8 (1) ◽  
pp. 3
Author(s):  
Shun Qin ◽  
Wai Kin Chan
Keyword(s):  
Error Detection ◽  
Phase Retrieval ◽  
Dynamic Range ◽  
Detection Accuracy ◽  
Wavefront Sensing ◽  
Next Generation ◽  
Large Aperture ◽  
Detection Approach ◽  
Segmented Mirror ◽  
And Control

Accurate segmented mirror wavefront sensing and control is essential for next-generation large aperture telescope system design. In this paper, a direct tip–tilt and piston error detection technique based on model-based phase retrieval with multiple defocused images is proposed for segmented mirror wavefront sensing. In our technique, the tip–tilt and piston error are represented by a basis consisting of three basic plane functions with respect to the x, y, and z axis so that they can be parameterized by the coefficients of these bases; the coefficients then are solved by a non-linear optimization method with the defocus multi-images. Simulation results show that the proposed technique is capable of measuring high dynamic range wavefront error reaching 7λ, while resulting in high detection accuracy. The algorithm is demonstrated as robust to noise by introducing phase parameterization. In comparison, the proposed tip–tilt and piston error detection approach is much easier to implement than many existing methods, which usually introduce extra sensors and devices, as it is a technique based on multiple images. These characteristics make it promising for the application of wavefront sensing and control in next-generation large aperture telescopes.

Next Generation of Real Time Data Acquisition, Calibration and Control System for the RatCAP Scanner

2007 ◽  
Author(s):  
Sachin S Junnarkar ◽  
Jack Fried ◽  
Sudeepti Southekal ◽  
Jean-Francois Pratte ◽  
Paul O'Connor ◽  
...  
Keyword(s):  
Control System ◽  
Data Acquisition ◽  
Real Time ◽  
Next Generation ◽  
Time Data ◽  
Real Time Data ◽  
And Control

scholarly journals Mobile Laboratory Model for Next-Generation Heterogeneous Wireless Systems

Robotics ◽  
2013 ◽  
pp. 1644-1661
Author(s):  
Ibrahima Ngom ◽  
Hamadou Saliah-Hassane ◽  
Claude Lishou
Keyword(s):  
Mobile Devices ◽  
Wireless Systems ◽  
Integrated System ◽  
Laboratory Model ◽  
Mobile Laboratory ◽  
Next Generation ◽  
Distributed Communication ◽  
Human Operators ◽  
Heterogeneous Wireless Systems ◽  
And Control

Failure to integrate heterogeneous wireless systems generally makes it difficult, if not impossible, for the continuation of remote working or remote experiments when human operators and equipment coexist through networks in a collaborative environment. Mobile laboratories using ubiquitous mobile communication for next-generation heterogeneous wireless systems have prospects for increasing the operation of distributed communication and mobile ubiquitous systems. All “technology assessors” concur that tomorrow's society will have access to smart objects (mobile devices or apparatuses, mobile equipment, e.g. robots) that contain “programs” that will assist with communication in everyday life. However one of the tomorrow’s challenges will consist of programming those objects to cooperate with and control telecommunications technologies. For a Mobile Laboratory to ensure consistent mobility in an environment, it must combine various wireless networks as a single integrated system. In this chapter we propose a Mobile Laboratory Model with mobile devices that take advantage of multiple mobile gateways by using Internet Protocol (IP) as the interconnection protocol to achieve the objective stated above.

scholarly journals Chronic Gamma Irradiation Changes Phenotype and Gene Expression Partially Transmitted to Next-Generation Tomato Seedlings

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1638
Author(s):  
Seong-Min Kim ◽  
Yeong Deuk Jo ◽  
Jae-In Chun ◽  
Jin-Baek Kim ◽  
Jin-Ho Kang
Keyword(s):  
Gene Expression ◽  
Gamma Irradiation ◽  
Gamma Rays ◽  
Mutation Breeding ◽  
Fruit Shape ◽  
Leaf Length ◽  
Trichome Density ◽  
Next Generation ◽  
Seed Number ◽  
And Control

Compared to the studies on acute irradiation of seeds, fewer studies have reported on the chronic irradiation of seedlings, especially in fruit-bearing vegetables. We examined the effects of chronic gamma irradiation on tomato (Solanum lycopersicum ‘Micro-Tom’) seedlings exposed to gamma rays (50, 100, 150, and 200 Gy) for 4 weeks. As the total dose of gamma rays increased, leaf length, trichome density, and seed number were reduced in the irradiated seedlings (M1). Additionally, a change in fruit shape was observed. Chronic gamma irradiation reduced the expression of two trichome-related genes and affected the expression levels of 11 reactive oxygen species (ROS)-related genes. We examined the transmittance of these effects using M2 plants. The trichome density and fruit shape were similar between M2 and control plants; however, a reduction in leaf length and seed number was detected in M2 plants. Interestingly, changes in the expression of four ROS-related genes (ZAT10, Mn-SOD, POD3, and RBOH1) found in M1 were detected in M2 plants. Thus, the changes in phenotype and gene expression induced by chronic gamma irradiation were transmitted to the next generation. Additionally, we found novel mutants from M2 plants, suggesting that chronic gamma irradiation may be considered in tomato mutation breeding.

Mobile Laboratory Model for Next-Generation Heterogeneous Wireless Systems

2012 ◽  
pp. 511-528 ◽  
Author(s):  
Ibrahima Ngom ◽  
Hamadou Saliah-Hassane ◽  
Claude Lishou
Keyword(s):  
Mobile Devices ◽  
Wireless Systems ◽  
Integrated System ◽  
Laboratory Model ◽  
Mobile Laboratory ◽  
Next Generation ◽  
Distributed Communication ◽  
Human Operators ◽  
Heterogeneous Wireless Systems ◽  
And Control

Failure to integrate heterogeneous wireless systems generally makes it difficult, if not impossible, for the continuation of remote working or remote experiments when human operators and equipment coexist through networks in a collaborative environment. Mobile laboratories using ubiquitous mobile communication for next-generation heterogeneous wireless systems have prospects for increasing the operation of distributed communication and mobile ubiquitous systems. All “technology assessors” concur that tomorrow’s society will have access to smart objects (mobile devices or apparatuses, mobile equipment, e.g. robots) that contain “programs” that will assist with communication in everyday life. However one of the tomorrow’s challenges will consist of programming those objects to cooperate with and control telecommunications technologies. For a Mobile Laboratory to ensure consistent mobility in an environment, it must combine various wireless networks as a single integrated system. In this chapter we propose a Mobile Laboratory Model with mobile devices that take advantage of multiple mobile gateways by using Internet Protocol (IP) as the interconnection protocol to achieve the objective stated above.

scholarly journals Family farm inheritance in Slavonia region, Croatia

2010 ◽  
Vol 56 (No. 11) ◽  
pp. 522-531 ◽  
Author(s):  
Đ. ŽUTINIĆ ◽  
I. GRGIĆ
Keyword(s):  
Social Reproduction ◽  
The State ◽  
Family Farm ◽  
Next Generation ◽  
Family Farms ◽  
Traditional Pattern ◽  
And Control

The aim of the study was to determine the chances of the Slavonian family farms for social reproduction in the next generation and to determine attitudes of farmers towards some aspects of family farm inheritance and the possible ways of preventing the division of land. The research was carried out on a sample of 202 family farms. The analysis showed that the chances to remain as integral production units in the next generation are realistic for only 48% of family farms. The traditional pattern of behavior is obvious with regard to inheritance and to postponing the transfer of management and control of the farm resources. The majority of the Slavonian farmers find that it would be proper if the state were to introduce special measures to regulate the integrity of the land and to offer subsidies and easements for the "entry" of the young into the agriculture.

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