scholarly journals Robust In-Plane Structures Oscillation Monitoring by Terrestrial Photogrammetry

Sensors ◽  
2020 ◽  
Vol 20 (8) ◽  
pp. 2223
Author(s):  
Omar El-Kadi ◽  
Adel El-Shazly ◽  
Khaled Nassar
Keyword(s):  
Light Exposure ◽  
Region Of Interest ◽  
Cost Effective ◽  
High Accuracy ◽  
Two Dimensional ◽  
Geometric Correction ◽  
Cost Effective Approach ◽  
Monitoring Procedure ◽  
Oscillation Monitoring ◽  
Terrestrial Photogrammetry

Oscillation monitoring commonly requires complex setups integrating various types of sensors associated with intensive computations to achieve an adequate rate of observations and accuracy. This research presents a simple, cost-effective approach that allows two-dimensional oscillation monitoring by terrestrial photogrammetry using non-metric cameras. Tedious camera calibration procedures are eliminated by using a grid target that allows geometric correction to be performed to the frame’s region of interest at which oscillations are monitored. Region-based convolutional neural networks (Faster R-CNN) techniques are adopted to minimize the light exposure limitations, commonly constraining applications of terrestrial photogrammetry. The proposed monitoring procedure is tested at outdoor conditions to check its reliability and accuracy and examining the effect of using Faster R-CNN on monitoring results. The proposed artificial intelligence (AI) aided oscillation monitoring allowed sub-millimeter accuracy monitoring with observation rates up to 60 frames per second and gained the benefit of high optical zoom offered by market available bridge cameras to monitor oscillation of targets 100 m apart with high accuracy.

Laser-Cutting and Welding of DDG-51 Structural Shapes

2000 ◽  
Vol 16 (04) ◽  
pp. 183-192
Author(s):  
Paul A. Blomquist ◽  
David L. Forrest
Keyword(s):  
Laser Cutting ◽  
High Speed ◽  
Cost Benefit ◽  
Cost Effective ◽  
High Accuracy ◽  
Purchase Price ◽  
Benefit Ratio ◽  
Cost Effective Approach ◽  
Cost Benefit Ratio ◽  
Hot Rolled

The application of high-power industrial lasers to the production of structural shapes for shipbuilding has been analyzed. Requirements for T-and I-sections used in a DDG-51 class vessel were used to evaluate a cost/benefit ratio for fabricating shapes vice purchasing hot rolled sections. Results of the study indicate that fabricated shapes offer significant tangible and intangible benefits to the shipbuilder, and that the entire shipset of T's and I's can be cut from plate and welded to actual net shape for less cost than the purchase price of stock lengths of hot-rolled shapes. Savings from elimination of complex layout and cutting operations further add to the benefit. The high speed and high accuracy of modern industrial lasers makes possible an efficient, flexible, and cost-effective approach to the production of structural shapes. A further benefit is the potential to design a ship with structurals having the same depth, vastly improving the speed of outfitting such as the installation of piping, wireways and vent runs.

Optimization Of Technology And Design Parameters Of IGBT Using TWB

1997 ◽  
Vol 483 ◽  
Author(s):  
B. Fatemizadehl ◽  
Y. Granik
Keyword(s):  
Cost Effective ◽  
Design Parameters ◽  
Response Surface Modeling ◽  
Two Dimensional ◽  
Trade Off ◽  
Design Alternatives ◽  
Cost Effective Approach ◽  
Different Types ◽  
The Impact ◽  
Technology And Design

AbstractThis paper presents a methodology to optimize the design of different types of IGBT using TWB (TMA WorkBench). Using RSM (Response Surface Modeling) and DOE (Design of Experiment) in TWB we have developed a methodology, which can be applied to explore the impact of design modifications on the speed improvement and study the trade-off between speed, on-resistance, and breakdown voltage of IGBT. This method is a rapid and cost-effective approach for studying design alternatives. Two-dimensional simulations were used to determine the influence of technology and design parameter on device characteristics.

E-Insurance :A Platform For Insurance Penetration In India

2019 ◽  
Vol 118 (6) ◽  
pp. 90-93
Author(s):  
L. Terina Grazy ◽  
Dr.G. Parimalarani
Keyword(s):  
Insurance Industry ◽  
Cost Effective ◽  
Online Marketing ◽  
Insurance Companies ◽  
The Internet ◽  
Insurance Sector ◽  
The People ◽  
Cost Effective Approach ◽  
Time And Energy ◽  
Work Done

E-commerce is a part of Internet Marketing. The arrival of Internet made the world very simple and dynamic in all the areas. Internet is the growing business as a result most of the people are using it in their day to day life. E-commerce is attractive and efficient way for both buyers and sellesr as it reduce cost, time and energy for the buyer. No surprise the insurance sector has become quite active within the internet sphere. Most insurance companies are offering policies to be brought online and also the portals for paying premiums. It actually saves from hassles involved in going to an insurance office and spend hours to get the insurance work done. Insurance has become an important and crucial aspect of life. Online insurance is the best and most cost effective approach of taking the insurance deal. This paper focused on influence of online marketing on the insurance industry in India, usage of internet in India , the internet penetration in India and the online sale of insurance product by the insurance sector.

Conclusion

2018 ◽  
Author(s):  
Yana van der Meulen Rodgers
Keyword(s):  
Family Planning ◽  
Reproductive Health ◽  
Health Services ◽  
Health Outcomes ◽  
Cost Effective ◽  
Reproductive Health Services ◽  
Cost Effective Approach ◽  
Restrictive Legislation

Chapter 7 concludes by highlighting the three biggest messages from the analysis presented in this book: (1) the global gag rule has failed to achieve its goal of reducing abortions; (2) restrictive legislation is associated with more unsafe abortions; and (3) the expanded global gag rule is likely to have negative repercussions across a range of health outcomes for women, children, and men. They are simple but powerful messages that should be heard by policymakers over the voices calling for an ideologically based policy that fails to achieve its desired outcome. The chapter closes with a more constructive and cost-effective approach for US family-planning assistance that targets integrated reproductive health services.

scholarly journals Modification of cotton fabrics with 2-diethylaminoethyl chloride for salt-free dyeing with anionic dyes

Cellulose ◽  
2021 ◽  
Author(s):  
Peixin Tang ◽  
Leilah-Marie E. Lockett ◽  
Mengxiao Zhang ◽  
Gang Sun
Keyword(s):  
Electrostatic Interactions ◽  
Light Exposure ◽  
Dye Adsorption ◽  
Cost Effective ◽  
Cotton Fabrics ◽  
Cotton Cellulose ◽  
Hydroxyl Groups ◽  
Anionic Dyes ◽  
Free System ◽  
Untreated Cotton

AbstractA chemical modification of cotton fabrics by 2-diethylaminoethyl chloride (DEAE-Cl) was achieved, and the resulted cotton fabrics demonstrated salt-free dyeing properties with anionic dyes. Nucleophilic property of hydroxyl groups in cotton cellulose was enhanced under alkaline conditions and could react with DEAE-Cl, a chemical possessing both nucleophilic and electrophilic sites. The monolayered DEAE-grafted cotton cellulose could further react with DEAE-Cl to form multiple cationic quaternary ammonium salts (denoted as DEAE@Cotton), which are highly interactive with anionic dye molecules. The strong electrostatic interactions between the DEAE@Cotton and the dyes eliminated the use of inorganic salts in cotton dyeing process. The chemical structure and property of DEAE@Cotton were characterized and compared with untreated cotton. The DEAE@Cotton can be dyed in a salt-free system, and the dye exhaustion was faster than the conventional dyeing method due to the robust electrostatic interactions of the fabrics with anionic dyes. The dyed fabrics demonstrated outstanding color fastness under repeated washing, light exposure, and crocking. The dye adsorption process on DEAE@Cotton follows Langmuir isotherm model (R2 = 0.9667). The mechanism of enhanced dyeability was experimentally proved by treating the fabric with other anionic dyes in a salt-free system, proving the process to be environmentally friendly and cost-effective. Graphic abstract

scholarly journals The Inverse Spacer—A Novel, Safe, and Cost-Effective Approach in Routine Procedures for Revision Knee Arthroplasty

2021 ◽  
Vol 10 (5) ◽  
pp. 971
Author(s):  
Kristoff Hammerich ◽  
Jens Pollack ◽  
Alexander F. Hasse ◽  
André El Saman ◽  
René Huber ◽  
...  
Keyword(s):  
Knee Arthroplasty ◽  
Clinical Success ◽  
Cost Effective ◽  
Revision Total Knee Arthroplasty ◽  
Rotational Stability ◽  
X Rays ◽  
Free Interval ◽  
Major Disadvantage ◽  
Cost Effective Approach ◽  
Before And After

Background: A major disadvantage of current spacers for two-stage revision total knee arthroplasty (R-TKA) is the risk of (sub-) luxation during mobilization in the prosthesis-free interval, limiting their clinical success with detrimental consequences for the patient. The present study introduces a novel inverse spacer, which prevents major complications, such as spacer (sub-) luxations and/or fractures of spacer or bone. Methods: The hand-made inverse spacer consisted of convex tibial and concave femoral components of polymethylmethacrylate bone cement and was intra-operatively molded under maximum longitudinal tension in 5° flexion and 5° valgus position. Both components were equipped with a stem for rotational stability. This spacer was implanted during an R-TKA in 110 knees with diagnosed or suspected periprosthetic infection. Postoperative therapy included a straight leg brace and physiotherapist-guided, crutch-supported mobilization with full sole contact. X-rays were taken before and after prosthesis removal and re-implantation. Results: None of the patients experienced (sub-) luxations/fractures of the spacer, periprosthetic fractures, or soft tissue compromise requiring reoperation. All patients were successfully re-implanted after a prosthesis-free interval of 8 weeks, except for three patients requiring an early exchange of the spacer due to persisting infection. In these cases, the prosthetic-free interval was prolonged for one week. Conclusion: The inverse spacer in conjunction with our routine procedure is a safe and cost-effective alternative to other articulating or static spacers, and allows crutch-supported sole contact mobilization without major post-operative complications. Maximum longitudinal intra-operative tension in 5° flexion and 5° valgus position appears crucial for the success of surgery.

scholarly journals Overexpression of OsABCG48 Lowers Cadmium in Rice (Oryza sativa L.)

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 918
Author(s):  
Xingzhe Cai ◽  
Meng Wang ◽  
Yucong Jiang ◽  
Changhu Wang ◽  
David W. Ow
Keyword(s):  
Oryza Sativa L ◽  
Cost Effective ◽  
Health Issues ◽  
Rna Seq ◽  
Wild Type ◽  
Genetic Changes ◽  
Cd Accumulation ◽  
Lateral Root Development ◽  
Atp Binding Cassette Transporter ◽  
Cost Effective Approach

Cadmium pollution threatens food safety and security by causing health issues and reducing farmland availability. Engineering genetic changes in crop plants to lower Cd accumulation can be a cost-effective approach to address this problem. Previously, we reported that a rice line, 2B, which expresses a truncated version of OsO3L2 had reduced Cd accumulation throughout the plant, including in seed. However, downstream events caused by expression of this gene were not known. In this study, RNA-seq was used to identify differentially expressed genes between the wild type and 2B rice with or without Cd treatment, leading to the study of an ABC transporter gene, OsABCG48 (ATP-Binding Cassette transporter G family member 48). Heterologous expression of OsABCG48 conferred tolerance to Cd in Schizosaccharomyces pombe, Arabidopsis and rice. Moreover, overexpressing OsABCG48 in rice lowered root Cd accumulation that was associated with more extensive lateral root development. These data suggest that OsABCG48 might have applications for engineering low-Cd rice.

Sign in / Sign up

Export Citation Format

Share Document