A Technical Innovation in Midface Advancement With the External Frame Distraction Device

2018 ◽  
Vol 56 (5) ◽  
pp. 670-673
Author(s):  
Syed Altaf Hussain ◽  
Charanya Vijayakumar
Keyword(s):  
Stainless Steel ◽  
Complication Rate ◽  
Cost Effective ◽  
Technical Innovation ◽  
Common Complication ◽  
Titanium Plate ◽  
Distraction Device ◽  
External Frame ◽  
Halo Device ◽  
Frame Device

Background: Maxillary advancement with a rigid external distractor (RED) II is a commonly performed procedure for correcting midface hypoplasia. While there are various methods of anchoring the osteotomized maxillary segment to the halo device, the looped transpyriform wire is the simplest and most cost-effective. However, a common complication with this is the cutting through of the stainless steel traction wire across the pyriform buttress during distraction. The patient with cleft undergoing midface distraction is particularly vulnerable since the force needed for distraction is higher due to scarring from previous operations. Innovation and Design: A single-hole titanium plate is introduced as an interface between the bone of the pyriform buttress and the looped stainless steel traction wire attached to the external frame device. Evaluation: Twenty-four patients with cleft who underwent midface advancement using the external frame distractor before the introduction of the innovation were compared with 26 patients who underwent the same procedure after its introduction. The former group had 12.5% complication in the form of cut through of the traction wire, while the latter group had only 3.8% complication rate. Conclusion: Introduction of the titanium eyelet as an interface between the traction wire and the bone is a simple technical addition for a more reliable distraction using the RED II device in patients with cleft even in the presence of extensive scarring.

JS777

Alloy Digest ◽  
1980 ◽  
Vol 29 (11) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Austenitic Stainless Steel ◽  
Cost Effective ◽  
Heat Treating ◽  
Steel Company ◽  
High Alloy ◽  
Cost Effective Alternative ◽  
Resistance To Stress ◽  
Nickel Base

Abstract JS777 is a high-alloy, fully austenitic stainless steel developed for applications where corrosive conditions are too severe for the standard grades of stainless steel. It also provides a cost-effective alternative to more expensive nickel-base and titanium-base alloys. It has relatively high resistance to stress-corrosion cracking and to intergranular corrosion. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-377. Producer or source: Jessop Steel Company.

scholarly journals A new mini box corer for sampling muddy bottoms in antarctic shallow waters

2009 ◽  
Vol 52 (3) ◽  
pp. 629-636 ◽  
Author(s):  
Carlos Alejandro Echeverría ◽  
Helena Passeri Lavrado ◽  
Lúcia Campos ◽  
Paulo Cesar de Paiva
Keyword(s):  
Stainless Steel ◽  
Shallow Waters ◽  
King George Island ◽  
Sampling Area ◽  
Sampling Device ◽  
Admiralty Bay ◽  
Direct Sampling ◽  
External Frame ◽  
Bottom Sampling ◽  
Box Corer

A new Mini Box Corer (MBC-GEAMB) was developed for bottom sampling in Antarctic shallow waters down to 100 m depth from a small vessel. It consists of a detachable stainless steel box with a total sampling area of 0.0625 m², and a closing arm with a detachable blade without an external frame. MBC allowed stratified bottom sampling and good quality samples comparable to those obtained through diving. A comparison between the MBC-GEAMB and a 0.056 m²van Veen grab (VV) was undertaken for the benthic macrofaunal composition in Admiralty Bay, King George Island (Antarctica). MBC and VV samples were taken from three depths (20, 30 and 60m) in two sites. Total densities sampled with the MBC were up to 10 times higher than those obtained with van Veen grab. VV samples might lead to faunistic abundance underestimation compared to the MBC samples. Besides, MBC showed a higher performance on discriminating different sites as regards total macrofaunal density. It is suggested that MBC could be employed as an efficient remote sampling device for shallow-waters where direct sampling by SCUBA was not advisable.

scholarly journals Identification of Critical Genes and lncRNAs in Osteolysis after Total Hip Arthroplasty and Osteoarthritis by RNA Sequencing

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Guang Yang ◽  
Kai Tang ◽  
Li Qiao ◽  
Yixin Li ◽  
Shui Sun
Keyword(s):  
Total Hip Arthroplasty ◽  
Effective Treatment ◽  
Rna Sequencing ◽  
Hip Arthroplasty ◽  
Specific Interaction ◽  
Cost Effective ◽  
Common Complication ◽  
Total Hip ◽  
Cost Effective Treatment ◽  
Coexpression Networks

Total hip arthroplasty (THA) is a cost-effective treatment for osteoarthritis (OA), and osteolysis is a common complication of THA. This study was aimed at exploring the relevant molecular biomarkers for osteolysis after THA. We performed RNA sequence to identify and characterize expressed mRNAs and lncRNAs in OA and osteolysis. Differentially expressed mRNAs (DEmRNAs) and lncRNAs (DElncRNAs) in OA and osteolysis were acquired, as well as shared DEmRNAs/DElncRNAs in OA and osteolysis and osteolysis-specific DEmRNAs/DElncRNAs. Then, shared and osteolysis-specific DElncRNA-DEmRNA coexpression networks were constructed to further investigate the function of DElncRNAs and DEmRNAs in OA and osteolysis. In total, 343 DEmRNAs and 25 DElncRNAs in OA, 908 DEmRNAs and 107 DElncRNAs in osteolysis, and 406 DEmRNAs and 46 DElncRNAs between OA and osteolysis were acquired. A total of 136 shared DEmRNAs and 9 shared DElncRNAs in OA and osteolysis and 736 osteolysis-specific DEmRNAs and 103 osteolysis-specific DElncRNAs were acquired. Then, 128 shared DElncRNA-DEmRNA coexpression pairs and 522 osteolysis-specific DElncRNA-DEmRNA coexpression pairs were identified. The present study highlighted the roles of four interaction pairs, including two shared lncRNA-mRNA interaction pairs in OA and osteolysis (AC111000.4 and AC016831.6), which may function in the immune process of OA and osteolysis by regulating CD8A and CD8B, respectively, and two osteolysis-specific interaction pairs (AC090607.4-FOXO3 and TAL1-ABALON), which may play an important role in osteoclastogenesis.

scholarly journals All-Metal Terahertz Metamaterial Biosensor for Protein Detection

2021 ◽  
Author(s):  
Gangqi Wang ◽  
Fengjie Zhu ◽  
Tingting Lang ◽  
Jianjun Liu ◽  
Zhi Hong ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Refractive Index ◽  
Bovine Serum Albumin ◽  
Figure Of Merit ◽  
Limit Of Detection ◽  
Protein Detection ◽  
Cost Effective ◽  
Detection Sensitivity ◽  
Drilling Technology ◽  
Simulation Results

Abstract In this paper, a terahertz (THz) biosensor based on all-metal metamaterial is theoretically investigated and experimentally verified. This THz metamaterial biosensor uses stainless steel materials that are manufactured via laser-drilling technology. The simulation results show that the maximum refractive index (RI) sensitivity and the figure of merit (FOM) of this metamaterial sensor are 294.95 GHz/RIU and 4.03, respectively. Then, bovine serum albumin (BSA) was chosen as the detection substance to assess this biosensor’s effectiveness. The experiment results show that the detection sensitivity is 72.81 GHz/(ng/mm2) and the limit of detection (LOD) is 0.035 mg/mL. This THz metamaterial biosensor is simple, cost-effective, easy to fabricate, and have great potential in various biosensing applications.

AK STEEL 409 Ni

Alloy Digest ◽  
2021 ◽  
Vol 70 (6) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Cost Effective ◽  
Heat Treating ◽  
Low Alloy Steels ◽  
Service Temperature ◽  
Alloy Steels ◽  
Cost Effective Alternative ◽  
Maximum Service Temperature

Abstract AK Steel 409 Ni is a 11% chromium ferritic stainless steel microalloyed with titanium and nickel. It provides excellent weldability, toughness, and fabricating characteristics superior to those of type 409 stainless steel in thicknesses over 3.05 mm (0.120 in.). This alloy is a cost effective alternative to mild steels and low-alloy steels that also provides superior corrosion and/or oxidation resistance. The recommended maximum service temperature of AK Steel 409 Ni is 730 °C (1350 °F). This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on corrosion resistance as well as heat treating and joining. Filing Code: SS-1336. Producer or source: AK Steel Corporation.

scholarly journals Heat Transfer Enhancement by Shot Peening of Stainless Steel

Coatings ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 584
Author(s):  
Pramote Koowattanasuchat ◽  
Numpon Mahayotsanun ◽  
Sedthawatt Sucharitpwatskul ◽  
Sasawat Mahabunphachai ◽  
Kuniaki Dohda
Keyword(s):  
Heat Transfer ◽  
Surface Roughness ◽  
Stainless Steel ◽  
Process Parameters ◽  
Shot Peening ◽  
Cfd Simulation ◽  
Cost Effective ◽  
Transfer Coefficients ◽  
Roughness Effects ◽  
Heat Transfer Efficiency

In heat exchange applications, the heat transfer efficiency could be improved by surface modifications. Shot peening was one of the cost-effective methods to provide different surface roughness. The objectives of this study were (1) to investigate the influences of the surface roughness on the heat transfer performance and (2) to understand how the shot peening process parameters affect the surface roughness. The considered specimens were 316L stainless steel hollow tubes having smooth and rough surfaces. The computational fluid dynamics (CFD) simulation was used to observe the surface roughness effects. The CFD results showed that the convective heat transfer coefficients had linear relationships with the peak surface roughness (Rz). Finite element (FE) simulation was used to determine the effects of the shot peening process parameters. The FE results showed that the surface roughness was increased at higher sandblasting speeds and sand diameters.

scholarly journals Electrochemically Synthesized Nanoflowers to Nanosphere-Like NiCuSe2 Thin Films for Efficient Supercapacitor Application

Metals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1698
Author(s):  
Surendra K. Shinde ◽  
Dae-Young Kim ◽  
Vinayak G. Parale ◽  
Hyung-Ho Park ◽  
Hemraj M. Yadav
Keyword(s):  
Thin Films ◽  
Stainless Steel ◽  
Specific Capacity ◽  
Synergetic Effect ◽  
Cost Effective ◽  
Stainless Steel Mesh ◽  
Supercapacitor Application ◽  
Steel Mesh ◽  
Earth Abundant ◽  
Xrd Patterns

Developing efficient electrochemically active nanostructures from Earth-abundant elements has gained significant interest in recent years. Among different transition metals, nickel and copper are abundant electrocatalysts for energy-storage applications. Nickel–copper selenide (NiCuSe2) nanostructures were prepared on a stainless-steel mesh with a cost-effective, simple, and versatile electrodeposition method for supercapacitor applications. The change effect in the bath concentration of nickel and copper altered the structural and electrochemical properties of NiCuSe2 electrode. X-ray diffraction (XRD) patterns confirmed the pure phase of ternary NiCuSe2 thin films with a cubic crystal structure. The surface morphology of NiCuSe2 was tuned by nickel and copper from spherical porous nanoflowers, nanoplates, nanocubes, and nanosphere-like nanostructures deposited on the stainless-steel mesh. The electrochemical performance of the electrodeposited NiCuSe2 was investigated in alkaline 1 M KOH electrolyte. The synergetic effect of bimetallic nickel and copper with the selenide electrode showed superior specific capacity of about 42.46 mAh g−1 at 10 mV s−1 along with reasonable cycling stability.

scholarly journals Development of Lean Duplex Stainless Steel that is Cost-effective as a Material for Structure

Materia Japan ◽  
2016 ◽  
Vol 55 (2) ◽  
pp. 70-72
Author(s):  
Yusuke Oikawa ◽  
Shinji Tsuge ◽  
Fuminori Gohnome ◽  
Hiroshi Motomura ◽  
Yuji Inoue
Keyword(s):  
Stainless Steel ◽  
Duplex Stainless Steel ◽  
Cost Effective ◽  
Lean Duplex Stainless Steel

Selecting and Developing Advanced Alloys for Creep-Resistance for Microturbine Recuperator Applications

2001 ◽  
Author(s):  
Philip J. Maziasz ◽  
Robert W. Swindeman
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Creep Strength ◽  
Creep Resistance ◽  
Low Cost ◽  
Cost Effective ◽  
Creep Rupture ◽  
High Temperature Strength ◽  
Steel Alloys ◽  
Surface Plate

Recuperators are considered essential hardware to achieve the efficiencies desired for advanced microturbines. Compact recuperator technologies, including primary surface, plate and fin, and spiral, all require thin section materials that have high-temperature strength and corrosion resistance up to 750°C or above, and yet remain as low-cost as possible. The effects of processing and microstructure on creep-rupture resistance at 750°C and 100 MPa were determined for a range of austenitic stainless alloys made into 0.1 mm foils. Two groups of alloys were identified with regard to improved creep-resistance relative to type 347 stainless steel. Alloys with better creep-rupture resistance included alloys 120, 230, modified 803 and thermie-alloy, while alloy 214 and 625 exhibited much better creep strength. Alloys 120 and modified 803 appeared to have the most cost-effective improvements in creep-strength relative to type 347 stainless steel, and should be attractive for advanced microturbine recuperator applications.

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