Analysis of Temperature Concentration During Single Layer Metal Deposition Using GMAW-WAAM: A Case Study

Author(s):  
Manu Srivastava ◽  
Sandeep Rathee ◽  
Mehul Dongre ◽  
Ankit Tiwari
2010 ◽  
Vol 3 (5) ◽  
pp. 1333-1349 ◽  
Author(s):  
E. Kassianov ◽  
M. Ovchinnikov ◽  
L. K. Berg ◽  
S. A. McFarlane ◽  
C. Flynn ◽  
...  

Abstract. A recently developed reflectance ratio (RR) method for the retrieval of aerosol optical depth (AOD) is evaluated using extensive airborne and ground-based data sets collected during the Cloud and Land Surface Interaction Campaign (CLASIC) and the Cumulus Humilis Aerosol Processing Study (CHAPS), which took place in June 2007 over the US Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Southern Great Plains site. A detailed case study is performed for a field of single-layer shallow cumuli observed on 12 June 2007. The RR method is applied to retrieve the spectral values of AOD from the reflectance ratios measured by the MODIS Airborne Simulator (MAS) for two pairs of wavelengths (660 and 470 nm, 870 and 470 nm) collected at a spatial resolution of 0.05 km. The retrieval is compared with an independent AOD estimate from three ground-based Multi-filter Rotating Shadowband Radiometers (MFRSRs). The interpolation algorithm that is used to project MFRSR point measurements onto the aircraft flight tracks is tested using AOD derived from NASA Langley High Spectral Resolution Lidar (HSRL). The RR AOD estimates are in a good agreement (within 5%) with the MFRSR-derived AOD values for the 660-nm wavelength. The AODs obtained from MAS reflectance ratios overestimate those derived from MFRSR measurements by 15–30% for the 470-nm wavelength and underestimate the 870-nm AOD by the same amount.


2013 ◽  
Vol 353-356 ◽  
pp. 1907-1913
Author(s):  
Xin Ying Ai ◽  
Li Hua Xu ◽  
Jia Li Yu

Blasting-induced seismic wave imposes cyclic loadings on adjacent buildings and structures with a combined loading mode of tension, compression, bending, shear and torsion, and it leads to flaking of floated coat, wall cracking, developing of original cracks, etc. This paper presents a blasting case study for the excavation of Wucun tunnel in Xiamen Success Avenue. Field monitoring and numerical calculation of a typical brick masonry structure are adopted to analyze the relationships among the maximum structural displacement, peak vibration velocity of blasting-induced foundation vibration and the change rate of crack width. On the basis of the study above, a method of calculating the safe vibrating velocity for single-layer masonry structure is proposed. Meanwhile, a suggested value of the safe vibrating velocity for single-layer masonry structure is given. All the research results can be useful for the similar construction and research.


2010 ◽  
Vol 3 (2) ◽  
pp. 1889-1932
Author(s):  
E. Kassianov ◽  
M. Ovchinnikov ◽  
L. K. Berg ◽  
S. A. McFarlane ◽  
C. Flynn ◽  
...  

Abstract. A recently developed reflectance ratio (RR) method for the retrieval of aerosol optical depth (AOD) is evaluated using extensive airborne and ground-based data sets collected during the Cloud and Land Surface Interaction Campaign (CLASIC) and the Cumulus Humilis Aerosol Processing Study (CHAPS), which took place in June 2007 over the US Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Southern Great Plains site. A detailed case study is performed for a field of single-layer shallow cumuli observed on 12 June 2007. The RR method is applied to retrieve the spectral values of AOD from the reflectance ratios measured by the MODIS Airborne Simulator (MAS) for two pairs of wavelengths (660 and 470 nm and 870 and 470 nm) collected at a spatial resolution of 0.05 km. The retrieval is compared with an independent AOD estimate from three ground-based Multi-filter Rotating Shadowband Radiometers (MFRSRs). The interpolation algorithm that is used to project MFRSR point measurements onto the aircraft flight tracks is tested using AOD derived from NASA Langley High Spectral Resolution Lidar (HSRL). The RR AOD estimates are in a good agreement (within 5%) with the MFRSR-derived AOD values for the 660-nm wavelength. The AODs obtained from MAS reflectance ratios overestimate those derived from MFRSR measurements by 15–30% for the 470-nm wavelength and underestimate the 870-nm AOD by the same amount.


2018 ◽  
Vol 21 (02) ◽  
pp. 1850004 ◽  
Author(s):  
WEIFENG PAN ◽  
BO HU ◽  
JILEI DONG ◽  
KUN LIU ◽  
BO JIANG

Statistical properties of software networks have been extensively studied. However, in the previous works, software networks are usually considered as a single-layer network, which cannot capture the authentic characteristics of software since software in its nature should be multilayer. In this paper, we explore the structural properties of the multilayer software network at the class level by progressively merging layers together, where each coupling type such as inheritance, implements, and method call defines a specific layer. A case study in software Tomcat is conducted using a set of 10 measures widely used in complex network literatures. The results show that some structural properties that are widely observed in software network researches can only emerge when several layers are merged together, such as high clustering coefficient, small value of average shortest path length, and high global efficiency. Our study highlights the importance of taking into consideration the multilayer nature of software systems. The results we found can provide valuable insights to our understanding and modeling of the dynamical processes taking place in the design and development of software systems.


Multilingua ◽  
2019 ◽  
Vol 38 (5) ◽  
pp. 601-618 ◽  
Author(s):  
Louisa Desilla

Abstract This article examines the construal, cross-cultural relay and comprehension of misunderstandings by filmmakers, translators and audiences respectively of Bridget Jones’s Diary (2001) and Bridget Jones: The Edge of Reason (2004). It reports on findings of a case-study on implicatures in these two romantic comedies (Desilla 2009/2012/2014). Both genuine and feigned misunderstandings are found in the two films. Inter alia, the analysis will show that misunderstandings can serve comedic and/or narrative functions, the latter pertaining to both characterisation and, more crucially, plot advancement. It is also demonstrated how misunderstandings can permeate only a single layer or both layers of film communication.


Author(s):  
Suresh Periyasamy ◽  
Ramabalan Sundaresan ◽  
Natarajan Uthirapathy

The Threats to public security and premises security are on the rise because of increasing terrorism and violence. Safety of individual is a matter of concern, hence there is need to develop bullet resistant solutions for soldiers, tanks, and other military vehicles. This case study is concerned with designing the plates which are made up of different materials and structures and finding the ballistic limit velocity (BLV) by analyzing and comparing them. In this work, the ballistic limit velocity of Al 7075-T6, Al 5083H116, Titanium, Kevlar 149 materials were investigated numerically. Initially single layer plates made of Al 5083H116, Al 7075-T6 and Titanium were analyzed individually and it was found that Titanium plate yielded better ballistic limit velocity value than the other two materials. The numerical work was further extended with sandwich structures with / without honeycomb core. Al 7075-T6 material was considered for the front and rear face of the sandwich armour. And for the core portion Kevlar 149 (without honeycomb) and Al 7075-T6 (with honeycomb) were considered. Commercial software Ansys-workbench was used through the analysis. The result of the case study indicated that Al 7075-T6 with honeycomb structure yields greater ballistic limit velocity and it has 22.58% more BLV value than the solid single layer Al 7075-T6.


2017 ◽  
Vol 2 (2) ◽  
pp. 8 ◽  
Author(s):  
Santosh Kumar Malyala Kumar Malyala

3D printing or Additive Manufacturing (AM) technology has been in existence for more than 30 years. The footprint of this technology has been entered into almost each and every industry such as medical, dental, aerospace, construction, automobile, etc. One of the most benefited industries using AM is medical industry. In case of medical or maxillofacial surgical field, each and every patient has a unique anatomy. The traditional way of analyzing the patient anatomy was by using X-ray with single layer or CT scans with multiple layers information is available that too as soft data. 3D printing technology provides a physical model from virtual data of the patient anatomy using CT/MRI/CBCT information with the help of medical software. The physical 3D printed medical model is very useful for pre planning complex surgeries. The current case study is regarding a 35 years male patient, who presented with a defect in maxillary anterior alveolar region and nasal regurgitation of fluids. Based on chief complaint, history and clinical examination, a diagnosis of cleft alveolus was made. CT scan was advised to see the defect in all the 3 planes. The surgery was planned for reconstruction of the bony defect and to prevent escape of oral fluids into nasal cavity. Treatment planning and mock surgery were performed on the 3D printed medical model, which reduced about 30% of total surgery time thereby decreasing the complications.


2008 ◽  
Vol 155 (1) ◽  
pp. 164-173 ◽  
Author(s):  
E. Schelle ◽  
B.G. Rawlins ◽  
R.M. Lark ◽  
R. Webster ◽  
I. Staton ◽  
...  

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