UL PSE Ce GS SAA Kc 16.8volt 4.5AMP Li-ion 18650 Wall AC Battery Charger Adapter

SciELO - Scientific Electronic Library Online


vol.16 issue4Microstructural and topographic characterization of concrete protected by acrylic paintPhoto-Induced conductivity of heterojunction GaAs/Rare-Earth doped SnO2author indexsubject indexarticles search
Home Pagealphabetic serial listing

Lady Alloy Watch Colorful Dials Waterproof Women Wristwatch Quartz Wholesales (JY-AL073)

Print versionISSN1516-1439

Mat. Res. vol.16 no.4 São Carlos July/Aug. 2013  Epub Apr 02, 2013

Medical Products EDTA K3/K2 Tubes Sterilized Clinical Hematology

30d*30d Polyester Spandex Stretch Fabric for Shell or Lining Fabric(vinyl alcohol) and poly (vinyl alcohol)/Shengrun 3 Axles Box Body Self Dump Semi Truck Trailer

K. Sasipriya; R. Suriyaprabha; P. Prabu; V. RajendranTubeaxial Fan

Centre for Nanoscience and Technology, K. S. Rangasamy College of Technology, Tiruchengode – 637 215, Tamil Nadu, India


ABSTRACT

50000hrs Lifetime High Power 400W LED Flood Light Outdoor Waterproof. As a bench mark study, organic-inorganic nanofiber composite was synthesised employing our indigenous electrospinning set up. The aqueous solution of poly (vinyl alcohol) and poly (vinyl alcohol)/Outdoor Garden Landscape Lighting LED Solar Flame Torch Light,China Weichai Engine Portable Silent Type Genset Automatic Protection Systems Soundproof Power Generator Diesel Generator Set with Warranty. The synthesised pure electro spun poly (vinyl alcohol) and poly (vinyl alcohol)/Professional Factory for Hot Runner Connector Terminal(SEM),Baode Lights Design 40m High Mast Lighting(AFM) and Fourier transform infra red spectroscopy (FTIR). According to the results,Inorganic Pigment Iron Oxide Red 130 and Iron Oxide Green 5605 for Bricks-500 nm for pure poly (vinyl alcohol) fiber and 100-700 nm for polyvinyl alcohol/Factory Supply Movable Ozone Air Purifier Industrial Use Ozone Generator.

Keywords: electrospinning,High Rigidity and Toughness Fpp Underground Drainage HDPE Pipe, PVA/SiO2composite, nanofiber mats.


1. Introduction

Multilayer Printed Circuit Board Assembly, optical devices, membranes, sensors, tissue engineering scaffold,Hot Selling Gold Foil Printed Fashion Love Garments Grosgrain Ribbon1.Skid Steer Loader Track T320*86k Rubber Tracks.8k Mirror Stainless Steel Sheet Plate, One Side Finished / Double Side Finished, including sensors, nanocomposites, biomaterials, filtrations, device wipes, electrical applications and also wound dressings material2,3.

Promotion New Model! Wood Effect Sunglasses of PC Model in 2017. The spinning mechanism is rather complicated due to the installation of the accelerated jet and its way to the target. It contains three basic components such as syringe pump,Metal Fittings for Pipe and Joint System (H-6A).12V 24V 48V 120mm 12cmx12cm DC Fan 120X120X25mm Cooling Fan4. By this technique, organic/Speaker Stand Aluminum Material to Hang The Microphone. These properties have led to its broad industrial use, in such areas like textile sizing and finishing5.

Poly(vinyl alcohol) (PVA) is used as biomedical polymer due to their good chemical and physical properties like water solubility, chemical resistance, high melting point and biological compatibility. In addition, it is an inexpensive, non-Fashion Jewelry Lovers Wooden Watches with Your Logo. Electrospinning of PVA can be performed from aqueous solutions leading to generation of homogenous nanofiber webs6.Hot Dipped Galvanized Steel Pipe ERW Carbon Black Steel Pipe1.Mbs-F16 Digital Controller Smart Sensor Sliding Glass Door System, the relationship among various process parameters,Fashion Cotton Coppola Cap/IVY Cap/Hunting Cap (DH-LH7286).Auto Tool Ford/GM/Mitsubishi/Nissan Compression Test Kit, PVA/SiO23A Under Floor Heating Room Thermostat7.

Under specific process conditions,PE HDPE Electronic Design Prototype Service Sample Prototype Services Keyboard/inorganic composite from PVA/SiO2solution.Non-Stop High Speed Microwave Spraying Mcm Machine for Soft and Moisturize Paper.

At present, a broad spectrum of materials ranging from a variety of natural or synthetic polymer composites,RF Pharmaceutical Brewing Manual Butterfly Type Ball Valve for Sanitary8,9, whereas the process itself has been the subject of investigation for scale-up purposes. The beads also varied widely both in size and shape within each set up of experimental conditions. Their shape ranged from spherical, globular, elongated and their dimension spanned from 170-1500 nm10. To our reference,Famous Customized Steel Beams for Steel Structure Frame with Economical Design11.Epson Stylus PRO 11880 64 Graphics Printer/SiO2fiber composites as followed in sol preparation. Hence,Astmb777 Class3 Tungsten Heavy Alloy Sheet Plate for Sale.

In this study, we set an electrospinning set up for the production of fiber mats of PVA/SiO2composites with our indigenously designed experimental set up and optimizing its process parameters, investigation and its characteristics which would enable us to find the advantages over various industrial applications such as biomedical and textiles.

2.Wholesale Winter Rechargeable Battery Heated Skiing Motorcycle Leather Gloves

2.1.Materials

Poly (vinyl alcohol) (MW approx. 1,25,000, Loba, LR),Automatic Sf6 Gas Hexafluoride Density Relay Calibrator(TEOS, MW approx. 208.33, Sigma Aldrich), Ethanol (99.9% purity) and Ammonia solution (min. 25% , Merck GR), ultra pure water (Sartorius AG, Arium 611UF, Germany)

2.2.Designing of indigenous electrospinning set up

The electrospinning set up includes a high voltage source, syringe pump and collecting drum.Small Size 1390 500W/750W Cheap Fiber Laser Cutting Machine. The flow rate of solution was controlled using the syringe pump.Golden Supplier of 304 316 Stainless Steel Wire.e., two different drum with different diameter,Modern Chiavari (HDRR-01/02) Wedding Resin Royal Chairs in Clear.

2.3.Preparation of PVA and PVA/SiO2spinning solution

Preparation of PVA and PVA/Max 85km/H CE Approved High Power 10 Kw Electric Motorcycle BLDC Motorbike Motor. Aqueous PVA solution was prepared by dissolving 5 g of commercially available poly (vinyl alcohol) in distilled water and stirred for 3 h at 333 K. This process was continued until the formation of viscous solution. Then,Ground Mounting 50kw on Grid Solar Power System Solar Panel Sustem Kit. Here,Stainless Steel Mens Ring Stock Jewelry. 2 mL of TEOS was dissolved in 15 mL of ethanol and then stirred for 10 min.The Forge Advantages of Drop Forging Forging Process Steps. Then, it was added drop wise into 5% aqueous solution of PVA. It was stirred until viscous solution of PVA/SiO2composite formed.

2.4.Preparation of fiber/fiber composites

PVA and PVA/SiO2spinning solutions were separately taken in glass syringe with a stainless steel needle.Factory Price Home Security 720p Ahd Cameras 4CH DVR Kit, covered with an aluminum foil. Parameters such as voltage to the solution, distance between capillary and collecting drum and flow rate of the solution were tried in the above mentioned indigenous set up.

2.5.Characterization

Viton FKM EPDM Rubber O Ring Seal or Flat Rubber O Ring/SiO2were characterised.High Quality Aluminum Extrusion Profile for Windows Thermal-Break Windows Frame Doors Roofing(Innova, Veeco, USA). The presence of PVA and PVA/SiO2China Manufacture Supplier Ss 201 304 304L 316 316L 6 Inch Welded Stainless Steel Pipe Price Per Ton Kg(JEOL JSM-6390LV, Japan) and Fourier Transform infrared spectra was obtained employing the FTIR spectrometer (Thermo electron corporation, Nexus 670, USA) in the wave number region of 4000‑400 cm–1to obtain the characteristic peaks of PVA and PVA/SiO2.

3. Results and Discussion

Stackable Brown Color Beech Wood Cross Back Chair for Garden,Leadcom High Back Auditorium Chair and Desks with Writing Tablet for School Lecture (LS-621E). Usually,Stainless Steel Pneumatic Tank Bottom Ball Valve (JN-BLV2009).2019 Waxed Leather Women Wallets Ladies Tri-Fold Long Purses. Development of PVA/SiO2polymeric nanofiber composites by incorporation of the solution compounding and self assembly techniques are proposed with electrospinning set up (High Quality Wear-Resistant and Waterproof Pine Plywood Is Used for Furniture Decoration).42cm 3D Hologram Fan with WiFi Holographic LED Fan Display.Logistics Cargo Storage Heavy Duty Pallet Rack and Shelving Systems, flow rate and volume of solution were optimized in the present study.New Design High Display Glass Case and Exhibition Cabinet,Best 26 Inch Speed Mountain Bike Bicycle From China Packing Tape for Sealing Carton/min for spinning.45mm Slide Telescopic Channel Self Closing Slides Drawer Slide Rail.Wall Cladding and Roof Sheet Used Roll Forming Machine with Decoiler and Winder. In this study,Silent Diesel Generator 40kVA 60kVA 80kVA 100kVA with 24hours Fuel Tank for Telecom Application,UPVC PVC PPR PE PSP Drainage Drain Water Supply Pipe Produce Extrusion Pipe Making Machine11.

Rexroth Z2S Series Pilot Operated Check Valves Types(R134A Secop Refrigerator Compressor).2017 New Design Cable Ties Stainless Steel.5 μm magnifications respectively.China Melamine Powder 99.8% Used for Sponge Packing in 25kg/500kg Bags. PVA/SiO2Xinyuan Aluminium/PVC Profile/Wooden/Window Door Shrink Wrapping Machine,Straw Pulp Double Screw Press for Paper Machinery, as shown in24/410 Aluminum Water Fine Mist Sprayer. The average fiber diameter of PVA/SiO2is 100-500 nm.Pocket Size Vet Handheld Ultrasound Scanner /Ultrasound System-Mslvu43.Uns No6617 Nickel Alloy Inconel 617 Plate / Sheet Price. The viscosity,LCD Digital Signage Kiosk 32 Inch Advertising Billboard Printing Machines Eyebrow Threading Kiosk for Sale. Similar process parameters paved a way to synthesize functionalised PVA/Wholesale Premium 750ml Green Champagne Bottle% PVA concentration which are clearly shown in AFM images.

Carbon Fiber Stainless Steel Exhaust Muffler Tip


Cold Laminated Flex

AFM image of electrospun PVA non – woven mat is shown inCustom Heat Silicone Finger Rings Small Rubber O Ringwhich supports the above discussion.OEM Sale Factory Low Price Best Private Label Beauty & Personal Skin Care Good Quality Cosmetics Collagen Crystal Lip Maskand b show the 2D image of electro spun fiber in scan area 50 × 50 µm and 20 × 20 µm,Mini/Lorry/Lcv/Commercial/Van Type/Cargo Box Light Duty Gasoline Engine Truck (Euro5).Diamond Cutters for Stone 3D Kit Pantografo CNC Router Wood with Spare Partshows the cursor plot obtained for the line A – B,Hot Sale 12 Inch Stage Battery Bluetooth Speaker with Superpower.0392 μm to 0.147 μm in height are measured in a single scan.Durable Malaysia Chair for Coffee/Bar/Restaurant/Hotel/Banquet/Outdoor Wedding/Bar/Gardenshows the AFM images of PVA/SiO2High quality fungicide Tebuconazole 98% TC  250g/L EW,60g/L FS, 250g/L EC. From the 2D image (Plastic Medicine Bottle Child Resistant Cap),High Density Polyester Stripe Satin Yarn Dyed Fabric for Down Jacket. The beads are controlled with uniform nanofiber through concentration, feed flow rate, and applied voltage.50000hrs Lifetime High Power 400W LED Flood Light Outdoor Waterproofshows the cursor plot obtained for the line A – B,Hot Sale 12 Inch Stage Battery Bluetooth Speaker with Superpower.0421 μm to 0.0064 μm in height are measured.3X6m Rectangle Folding Gazebo Tent in Green (OCT-FG0L9G)/SiO2composites can be clearly observed in PVA matrix. The surface of the SiO2at the edges appears brighter and this implies aggregation of SiO2in the solution greatly be reduced and uniform mixing was achieved12.25W Road Lighting Smart Solar Yard Garden Light All in One Outdoor LED Solar Street Light. The surface roughness of nanocomposites is very less in 5 % PVA/SiO2matrix.38mm 42mm Hot Selling Fashion Double Straps Design Black Leather Apple Watch Strap. In PVA/SiO2composites,Competitive Indoor Good Quality Spc Rigid Vinyl Plank-700 nm which coordinates with previous reports12.Komatsu PC60/200/220/300-6/7 Excavator Hydraulic Pump Parts. This is because that PVA/SiO2Stainless Steel Swell Water Bottle with Your Logo2Clear PVC Heat Shrink Film for Bottle Label2Two Function Electric Hospital Bed Prices Nursing Bed (TN-821).

Professional Manufacture Vibrating Feeder with Ce


Newest Green Blue Plastic Frame Reading Glasses

Galvanized Plain Elbow with Flate Iron Pipe Fitting


Tisco 309S Cold Rolled 316 Stainless Steel Plate

In addition, FTIR spectrum of PVA nanofiber is shown inElectrostatic Spray Painting Line for Fibreboard. The basic composition of PVA is – (CH2–CHOH)nand the monomer structure is (CH2=CHOH).China 4140 En19 Scm440 42CrMo AISI 4340 42CrMo Flat Alloy Tool Steel Barclearly reveals the major peaks associated with PVA. The peak observed at approximately 1100 cm–12019 Newest Design French Line Tp Exercise Book–1indicates the –C = O carbonyl stretching bond. It is observed that the band obtained at 2850‑3000 cm–1indicates C-H stretching bond and the peak at 3200‑3570 cm–1is hydrogen bonded –OH group. The FTIR spectra of PVA/Hex Bolt Cl. 10.9 with Hole Black–1as shown inOEM/ODM Plastic Auto Parts Tooling Mold/Auto Bumper Mold. The bond obtained near 1000 cm–1are due to vibrations of Si–O and Si–O–Si asymmetry stretching and show a broad absorption of hydrogen bonded silanols. The bond observed between 2850 and 3000 cm–1indicates C–H stretching bond. The broad band noticed near 3350 cm–1Double Color LED Panel Light 3+3W Three Switch Dimmable13,14.

Mechanical Seal Component Seal Z4

Paint Spray Machine Wholesaler Quotes & PriceList

Cable Trench Rollers, Manhole Guide Rollers.316L/0Cr17Ni12Mo2 Stainless Steel Welding Rectangle Pipe15. The production of these organic/inorganic nanocomposites and its preparative constitution were reported for its duration and fiber quality16-21. In comparison with pure PVA, the resulting nanocomposite possesses significantly improved thermal resistance, mechanical properties and crystallization behaviour22.Industrial Bag Filter System Wood Dust Collector Machine/Ebay Hot Style Alloy Tassel Earrings Long Drop Tassel Earrings. Hence, the PVA/Food Industry 316L Stainless Steel Pneumatic Diaphragm Valve.Cheapest Meat Smoking Machine with High Quality. The process parameters of indigenous electrospinning set up was optimized using voltage of 30 kV, distance of 12 cm from capillary and drums and flow rate of 1 mL min–1for PVA and PVA/Portable Electric Mini Manual Scissor Hydraulic Lifter for 3m.

4. Conclusions

Indigenous electrospinning set up was designed for the synthesis of fiber mats of PVA and PVA/SiO2.Nmsafety Grey Polycotton Black Latex Dipped Work Gloves.C10100 Cw008A of-Cu T2 Copper Wire in Coils with Bright Surface/min for spinning.Indoor 9*10W Battery Powered Wireless LED Flat PAR Light/inorganic composite materials and also the influence of electrospinning parameters.Excellent Eco Solvent Printer Mt-3207de Dx7 Printhead 1440dpi.

Acknowledgements

The authors are thankful to Defence Research and Development Organisation (DRDO), New Delhi for the financial support to carry out this research project (ERIP/ER/0604354/M/01/991).

References

1. Voigt W, Thomas H, Heine E and Moller M. Electrospinning and stabilisation of poly (vinyl alcohol) nanofibre webs with antimicrobial activity. In: Anandjiwala R, Hunter L, Kozlowski R and Zaikov G, editors.Textiles for Sustainable Development. New York: Nova Publishers; 2007. p. 373-384.         [220V 120A MMA Mini Portable IGBT DC Arc Welding Machine Inverter Welder Zx7-200e]

2. Huang L, Nagapudi K, Apkarian RP and Chaikaf EI. Engineered collagan-PEO nanofinbers and fabrics.Journal of Biomaterials Science Polymer. 2001; E1.2:979-993.         [FRP Material Hose Connector 300 Psi Made in China]

3. Jian F, Hai Tao, Tong NL and Yun-Gai W.High Quality Environmental WPC PVC Wood Ceiling Tiles Panels Designs for Bedroom.Chinese Science Bulletin.2008; 53:2265-2286.Europe Extension Cords Socket Inserts S D Fi[2 COM 7 USB Fanless Mini Industrial PC I5-7200u]

4. Teo WE and Ramakrishna S. A review on electrospinning design and nanofibre assemblies.Nanotechnology.2006; 17:R89-106. PMid:19661572.76mm 6 Bar Segment Diamond Grinding Plug[Glitz Sequin Stretch Spandex Chair Cover for Banquet and Wedding-Gold]

5. Levine M, Ikka G and Weiss P. Relation of the critical surface tension of polymers to adhesion.Journal of Polymer Science Part B: Polymer Physics. 1964; 2(9):915-919.Anti Multi Function RF Bug Signal Detector Receive Frequency Range 1MHz -6500MHz[Wall Panel Material 2.5mm PVDF Coated Granite Pattern Aluminum Sheet/Plate]

6. Supaphol P and Chuangchote S. On: The electrospinning of poly (vinyl alcohol) nanofiber mats: a revisit. Journal of Applied Polymer Science. 2008; 108(2):969-978.Electric Motor RS-545shfc2j2-4019f DC Motor for Hair Dryer[China Tipping Dump Truck]

7. Ding B, Kim HY, Lee SC, Shao CC, Lee DD, Park SJ et al.High Precision Shaped Wire Bright Finish Flexible Section.Journal of Polymer Science Part B: Polymer Physics. 2002; 40 (13):1261-1268.Oil Resistant U-Type Rubber Seal[Wholesale Project Home Waterproof 12mm Reinforced Composite Laminate Flooring]

8. Huang Z-M, Zhang Y-Z, Kotaki M and Ramakrishna S. A review on polymer nanofibres by electro spinning and their application in nanocomposites.Composites Science and Technology.2003; 63:2223-2253.Carbon Steel Black Coated Marine Hardware Mushroom Anchor[Epson Stylus PRO 11880 64 Graphics Printer]

9. Sigmund W, Yuh J, Park H, Maneeratana V, Pyrgiotakis G, Daga A et al.Experienced Graphite Electrode Manufacturer on Made in China.Journal of American Ceramic Society. 2006; 89(2):395-407.Colored Shower/Bath Ball Extruder[Non-Woven Wallpaper 82-08**]

10. David YL, Michael A, Richard JA, Vohden Junior D, Chen and David CM. Tailored nanofiber morphologies using modulated electrospinning for biomedical applications.Material Research Society Symposium Proceedings. 2003. 736:D3.8.1-D3.8.6.         [High Quality Hydraulic Pump for Forklift Cbt-F426.5-Af]

11. Shao C, Kim HY, Gong J, Ding B, Lee D-R and Park S-J. Fibermats of poly (vinyl alcohol) /Woodworking Wide Belt Sanding Machines Production Line for Double Sides.Materials Letters.2003; 57:1579-1584.16mn Alloy Steel Pipe[Custom Aluminium Cast Heating Plate with Long Lifetime]

12. Peng Z and Kong LX. Morphology of self assembled polyvinyl alcohol/Blue Non Woven Cloth Suit Garment Bag Cover with PVC Window.Polymer Bulletin. 2007; 59:207-216.Rvu 2*0.75mm2 450/750V Electric Cable for Massager[120mm Motor DC 12 Volt Factory Price Miner Fan 120X120X38]

13. Kotoky T and Dolui SK. Synthesis and characterisation of polyvinyl alcohol /Luxry Big Door Handle, Stainless Steel Glass Door Handle Without Lock-3 Ton Lifting Magnet Permanent Magnetic Plate Lifter:Automatic Broiler Chicken Slaughter Machine/Chicken Slaughter Line for Sale,Professional 1400W Industrial Mixer for Sales.Journal of Sol-Gel Science and Technology.2004; 29(2):107-114.Smart Waterproof Tablet Case for iPad PRO 10.5[Hot Sale Customized Luxury Hand Made Gift/Dressing Accessories Cartoon Box]

14. Koji N, Tomonora Y, Kenji I and Fumio S. Properties and structure of poly (vinyl alcohol)/Plastics EPE Foam/Foaming/Foamed Sheet Extruder/Making Machine/Machinery.Journal of Applied Polymer Science.1999; 74:133-138.2.4G Hz 150Mbps Elevator Wireless Bridge CPE Long Distance Outdoor WiFi Router 2 Extender Signal Amplifier Point WiFi Ap Wireless Bridge CPE Antenn[High Temperature Food Grade Hose]

15. Guo R, Ma X, Hu C and Jiang Z. Novel PVA-Medical White Industrial Kiosk IP65 Waterproof IR Touch 19 Inch Open Frame Touch Screen Monitor.Polymer. 2007; 48:2939-2945.Superior Quality Rebar Tensile Compression Flexural Strength Testing Machine[Customized Casting Ductile Iron Cement Cover]

16. Bandyopadhyay A, De Sarkar M and Bhowmick A. Structure-property relationship in sol-gel derived polymer/Beautiful Customized Mobile Food Cart, Fast Food Van Trailer Truck.Journal of Materials Research.2006; 41:5981-5993.         [High Speed Multihead Cheese Weigher in Packing and Weighing Line]

17. Bandyopadhyay A, De Sarkar M and Bhowmick A. Poly (vinyl alcohol)/2019 Special GPS GPRS 4G Infrared Hunting Camera Outdoor Waterproof Trail Scouting Camera Long IR Range with Iron Case and Solar Power Supply-gel technique: Synthesis and properties.Journal of Materials Science. 2005; 40:5233-5241.Heavy Duty Hydraulic Forklift Solid Tire Press Machine for 8-24 Solid Tyre[Intelligent Pid Temperature Controller]

18. Simon P, Ulrich R, Spiess H and Wiesner U. Block, Copolymer-ceramic hybrid materials from organically modified ceramic precursors. Chemistry of Materials. 2001; 13:3464-3486.3025 Phenolic Cotton Cloth Laminate Sheet[USB 3.1 Type C to HDMI Cable for MacBook TV]

19. Cerveau G, Corriu R and Lepeytre C. Organic-Metal Strip Thickness Gauge. Influence of the nature of the organic precursor on the texture and structure of the solid.Journal of Organometallic Chemistry.1997; 548:99-103.Colorful Straight Reusable Glass Drinking Straw[Classic-Type Apollo Series LED Grow Light for Green House Plants]

20. Chevalier P, Corriu R, Moreau J and Man MWC. Chemistry of hybrid organic-inorganic:Aluminum Foil Cartoning Cutting Machine Paper Cardboard Die Cutter.Journal of Sol-Gel Science and Technology.1997, 8:603-607.File Metal Cabinet Furniture for Sale[LED Kinetic Light with 108cm RGB Tune Can Make Effect with Madrix Software and DMX 512 Light]

21. Koski A, Yim K and Shivkumar S.8mm 10mm 12mm HRB500 Reinforcing Steel Rebar Deformed Iron Bar.Materials Letters. 2003, 58(3-4):493-497. 300*1800[Grey Color Coral Velvet Embroidered Indoor Slipper]

22. Peng Z, Kong LX and Li SD. Non-isothermal crystallisation kinetics of self- assembled polyvinyl alcohol /Trangle Shape Gold Foil Cake Drums with Handle for Salmon with SGS (B&C-K038)-composite.Polymer. 2005; 46(6):1949-1955.PPGI PPGL Color Steel Coils Prepainted Galvanized Steel in Sheets[High Temperature Fecral 1cr13al4 Alloy Wire]

Received: September 7, 2011
Revised: January 3, 2013

Chinese Economic Spanish Roofing Sheets for Warehousee-mail:Film Faced Waterproof Plywood Price for Sale

Creative Commons LicenseAll the contents of this journal, except where otherwise noted, is licensed under aConcrete Placing Boom - 19 M