Resume

• 20150360896

  CONVEYING OR TRANSPORTING SUBSTRATES WITH LITTLE OR NO ADDED VACUUM

  MIDDLESWORTH JEFF

  MUHS THOMAS

  BOWE DEBRA HEUS

  HOHM GOTTFRIED JASON

  A corrosion protected knife and anvil system is disclosed. A source of lubricating fluid is provided to a lubricating fluid distribution mechanism

  coupled to both a knife blade and a salt bridge and an associated sacrificial anode. The sacrificial anode is consumed in order to protect corrosion on a rotating knife blade

  which intermittently contacts both an associated anvil in order to cut material used in making disposable products

  and the source of lubricating fluid. A knife holder holds a knife which is corrosion protected by an impressed current anode.

  eu

  Corrosion protected anvil and knife cutting assembly

  http://www.stlehouston.com/2HoustonSTLE/2011-2012/Houston%20Section%20STLE%20Officers%202011-2012.pdf

  Vice Chairperson

  Houston Section of Society of Tribologists and Lubrication Engineers

• 2013

  STLE Journal of Tribology Transaction

  ASME Journal of Tribology

  Reviewer

  Journal of Chemical Science and Technology

  International Journal of Materials Science

  Reviewer

  Microelectronic Engineering

  ASME Journal of Manufacturing Science and Engineering

  Research and Development (R&D)

  Science

  Materials

  R&D

  SEM

  Characterization

  Spectroscopy

  Materials Science

  Scanning Electron Microscopy

  Electrochemistry

  Powder X-ray Diffraction

  Nanotechnology

  Engineering

  Third Party Inspection

  Design of Experiments

  TEM

  EN 10204 type 3.2 certification

  Nanoparticles

  FTIR

  Research

  In situ investigation of nanoabrasive wear of Si

  H. Liang

  A. Schwartzman

  In situ investigation of nanoabrasive wear of Si

  H. Liang

  M. Usta

  C. Bindal

  A. H. Ucisik

  Mixed-mode and multi-scale wear of boride coating on tungsten

  60NiTi is an alloy with 60 wt% of nickel (Ni) and 40 wt% of titanium (Ti). This alloy was developed in the 1950s at the Naval Ordnance Laboratory (NOL) along with 55NiTi (55 wt% of Ni and 45 wt% of Ti). Both of these alloys exhibit the shape memory effect to different extents. The unique properties of 60NiTi

  which are suitable for surface engineering (tribological) applications

  are enumerated here. With appropriate heat treatment

  this alloy can achieve high hardness (between Rc 55 and Rc 63). It has very good corrosion resistance and is resilient. Machinable before its final heat treatment

  this alloy can be ground to fine surface finish and to tight dimensions. At one time

  due to the popularity and wider applications of 55NiTi

  the study of 60NiTi suffered. Recently

  60NiTi alloy gained some technological advantages due to advanced materials synthesis processes and progress in surface engineering. A feasibility study of 60NiTi bearings for space application has shown promise for its further development and suitability for other tribological applications. This report focuses on an overview of the properties and potential tribological and biomedical applications of 60NiTi.

  60NiTi Alloy for Tribological and Biomedical Surface Engineering Applications

  This book details a comprehensive overview of tribology. General information on how tribology is approached in various related areas of research

  both experimental and computational is provided. The book contains up-to-date data and describes current technologies.

  Tribology for Scientists and Engineers-From Basics to Advanced Concepts

  Tribological losses at interfaces can cost important recourses such as time and money. Knowledge of interface chemistry is vital to understand fundamentals of tribological parameters. Sliding of two surfaces provide favorable thermodynamic parameters for chemical reactions to take place at these interfaces. The study of these reactions primarily studied under special fields of tribology

  i.e.

  tribo-chemistry and tribo-corrosion. It is difficult to separate these two fields. Usually

  study of tribo-corrosion deals with surface deterioration due to the synergism of tribological factors

  electrical stimulus

  and corrosion. The thermodynamics approach can be utilized to understand the tribo-chemical reactions. This chapter provides different approaches taken to study these two fields. In this chapter

  some of the mechanisms responsible for and applications of tribo-chemical interactions are discussed for example tribo-emission

  tribo-chemical polishing

  tribo-chemistry of magnetic media drive. Tribo-corrosion of coatings and metallic materials is briefly discussed. The case study of complex tribo-chemistry in sugarcane roller mill is included.

  Tribo-chemistry and Tribo-corrosion

  Sudarshan Kurwadkar

  Ph.D.

  P.E.

  M.ASCE

  American Society of Civil Engineers

  Abstract: Rapid advances in nanotechnology in recent years have raised concern about the occurrence

  distribution

  fate

  and transport of nanoparticles in the environment. Sources of nanoparticles in the environment include their widespread use in a variety of engineering operations

  biomedical applications

  consumer goods

  food and drug delivery system

  and so forth. Because they can be released into the environment either as a waste product or as a byproduct of some engineered processes or applications

  nanoparticles or nanoscale materials are increasingly detected in various environmental matrices. By their very nature

  nanoparticles are active at molecular levels

  and there is a concern that their occurrence in the environment and unintended exposure may pose an adverse risk to human health and ecology. Because of the nature of recent nanotechnology-based applications

  our understanding of nanoparticle behavior in the environment is limited. The objective of this literature review is to provide a measure of understanding and to document the state of knowledge on the environmental occurrence

  distribution

  fate

  and risk of nanoparticles. This review covers a wide range of published studies that illustrate the state of understanding about the behavior of nanoparticles in various environmental matrices such as air

  soil

  water

  and wastewater. A brief review of the evolving regulatory framework to deal with the occurrence of nanoparticles is also included.\n\nRead More: http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29HZ.2153-5515.0000258

  Nanoparticles in the Environment: Occurrence

  Distribution

  and Risks

  H. Liang

  M. Usta

  C. Bindal

  A. H. Ucisik

  Wear behavior of niobium boride coatings

  Umare S. S

  Waware U. S

  Ingole S

  Viswanath S. G

  This study covers the synthesis of polymers of aniline

  o-phenylenediamine

  and their copolymers by chemical oxidation in HCl medium. The composition of the copolymers was changed by varying the monomer feed ratio. For examining the effect of composition on copolymer structure and properties

  the copolymers were characterized by elemental analysis

  FTIR

  UV-visible spectra

  and thermal analysis. The electrical conductivity of the compressed pellets was measured by the two-probe method. Magnetic studies shows that the polyaniline is paramagnetic in nature

  which shows the presence of three unpaired electrons per chain unit

  while the poly(o-phenylenediamine) and copolymers are diamagnetic and are found to contain no unpaired electrons. The copolymer exhibits excellent solubility in DMF. It was interesting to find that 20% o-phenylenediamine-containing copolymer exhibits good solubility by retaining a conductivity similar to polyaniline. The spectroscopic analysis

  solubility test

  and electrical conductivity suggest that aniline and o-phenylenediamine units are distributed along the copolymer chain and the properties of copolymers can be modified by varying the monomer composition in copolymerization reactions. TG thermogram shows three-stage decomposition of the copolymer. Rapid decomposition starts after 400°C. The observed weight loss of samples was less than 17% at 225°C

  showing good thermal stability of copolymers.

  Influence of copolymer composition on the structure of conducting poly(aniline-co-o-phenylenediamine)

  Paluri Rajeshwari

  Aluminum Di-Borides for Engineered Surfaces for Low Friction Applications

  Archana Charanpahari

  Tribological behaviour of nano TiO2 as an additive in base oil

  Tribology of Metals and Alloys

  The surface properties of metals and alloys become important when these materials are used especially for tribological applications. Some basic concepts involved during wear of metals and alloys are briefly discussed in this chapter. Delamination theory of adhesive wear which is dominating wear mechanism for most metals and alloys is discussed. Most of the tribological joints are exposed to environmental oxygen when used in atmospheric conditions. Oxidation becomes problematic for such and high-temperature sliding applications when oxygen source is readily available at the interface. The debris formation mechanism and oxidation during sliding are included in this chapter. Information on oxidation and tribological behavior of 60NiTi is reviewed as it is a potential alloy for tribo-element applications. A brief description on phase transformation and high-temperature tribology of metallic materials is also included. The wear of materials at the interface depends on the interfacial strength of the sliding materials. In high-temperature oxidative wear

  wear performance can be determined by the type of oxides formed on the sliding surfaces.

  Tribology of Metals and Alloys

  R. Paluri

  Friction

  wear

  and lubrication have direct influence on performance

  reliability

  and service life of devices that contain moving components. These are universal in applications of energy conversion

  power generation

  energy harvesting in the broader fields such as agriculture

  transportation

  drug delivery

  and bioengineering. The useful life of these systems and their energy efficiency can be improved by improving the surface properties (performances) of sliding systems. Further

  the applications of sliding systems are limited in extreme environments such as high temperature and space application etc. due to their limited surface properties. Therefore

  development of a new class of materials with superior surface properties will improve the energy efficiency

  sustainability

  and applicability. This paper focuses on development of self-lubricating materials with superior surface properties for reduced friction and wear applications.

  Surface characterization of novel alumina-based composites for energy efficient sliding systems

  Optimization of coefficient of friction in association with minimum wear is a general requirement to reduce energy consumption due to friction and wear losses. Lubrication such as solid and liquid is utilized to meet low friction and wear demands. Extreme environmental conditions such as space and high-temperature applications limit their usefulness. There is a need to design newer class of coatings for such applications. Design and selection parameters of coatings and their tribology are discussed in this chapter. These parameters include scale-dependent failure modes (nano- and micrometer length scale)

  state of stress at the interface

  material properties

  and chemical interactions at the interface. The requirements for selection of coating for friction applications are included. Tribology of low-friction coatings such as graphite

  molybdenum disulfide

  diamond-like carbon

  chromium-based coatings

  and polymeric coatings is discussed. Effects for service conditions such as load

  nitrogen

  humidity

  and temperature for selected coatings are listed. Knowledge of the interfacial phenomena plays very important role in selection and development of coatings for tribological applications.

  Coatings Tribology

  Vibrissae are important components of the mammalian tactile sensory system and are used to detect vibrotactile stimuli in the environment. Pinnipeds have the largest and most highly innervated vibrissae among mammals

  and the hair shafts function as a biomechanical filter spanning the environmental stimuli and the neural mechanoreceptors deep in the follicle-sinus complex. Therefore

  the material properties of these structures are critical in transferring vibrotactile information to the peripheral nervous system. Vibrissae were tested as cantilever beams and their flexural stiffness (EI) was measured to test the hypotheses that the shape of beaded vibrissae reduces EI and that vibrissae are anisotropic. EI was measured at two locations on each vibrissa

  25% and 50% of the overall length

  and at two orientations to the point force. EI differed in orientations that were normal to each other

  indicating a functional anisotropy. Since vibrissae taper from base to tip

  the second moment of area (I) was lower at 50% than 25% of total length. The anterior orientation exhibited greater EI values at both locations compared to the dorsal orientation for all species. Smooth vibrissae were generally stiffer than beaded vibrissae. The profiles of beaded vibrissae are known to decrease the amplitude of vibrations when protruded into a flow field. The lower EI values of beaded vibrissae

  along with the reduced vibrations

  may function to enhance the sensitivity of mechanoreceptors to detection of small changes in flow from swimming prey by increasing the signal to noise ratio. This study builds upon previous morphological and hydrodynamic analyses of vibrissae and is the first comparative study of the mechanical properties of pinniped vibrissae.

  Comparative Analysis of the Flexural Stiffness of Pinniped Vibrissae

  Amol Kakade

  D.V. Bhatt

  and J.V. Menghani

  Wear is often observed on top roll shaft journal surface. Sugar mill roller shafts are made up of carbon steel EN8. The friction and wear behavior of carbon steel EN8 was investigated under dry

  lubricated

  and contaminated sliding conditions. Sugar cane juice

  bagasse

  and water were used to simulate the contaminated service conditions. A reciprocating pin on disk tester was used to carry out friction and wear tests. EN8 was flat surface whereas E52100 bearing ball was counterface. The friction characteristics were examined at a constant applied load and sliding speed. It was observed that the coefficient of friction and wear volume increased when the shaft material was slid in contaminated test conditions. The volumetric wear was determined to analyze the wear resistance of the shaft material in the extreme service environment. Optical and Scanning Electron Microscopy study showed sever wear in dry and contaminated test conditions. It was observed that the cracks initiated on the surface are consequences from the tribological phenomenon at the sliding interface.

  Tribological behavior of sugar mill roller shaft in laboratory simulated conditions

  Micro- and Nano-TiO2

  a Lubricant Additive for Environmentally Friendly Lubricants

  Suresh Umare

  Archana Charanpahari

  Micro- and Nano-TiO2

  a Lubricant Additive for Environmentally Friendly Lubricants

• 2001

  GKSS

  Self-Employed

  Texas A&M University

  Texas

  Texas A&M University

  Texas

  Self-Employed

  Owner

  Houston

  Texas Area

  GKSS

  MICHAEL T. HAHN

  Heat is supplied to elements of a web processing system to resist adhesive contamination by buildup. A variety of heat sources can be used on a variety of web handling structures

  such as rollers

  idlers

  conveyors

  vacuum belts

  or any other place where adhesive accumulation is undesired.

  us

  ADHESIVE CONTAMINATION RESISTANT WEB PROCESSING UNIT

  Clinton H. Ylitalo

  James K. Melis

  MICHAEL T. HAHN

  HOHM GOTTFRIED JASON

  Provided are methods and apparatus for transporting either an entire web or discrete components of disposable products. The invention is a means of conveying the web or diaper components down the machine using mechanical forces to grip the nonwoven web and transfer it from one belt or roll to another without or reducing added vacuum. There is a carrier nonwoven web that goes down the length of the machine and other substrates are added on top of this. Methods and apparatus are disclosed to provide sufficient gripping to allow transport of diaper components through the fabrication process. Securing and releasing forces are supplied so that the components can be retained at some points and released at others.

  eu

  CONVEYING OR TRANSPORTING SUBSTRATES WITH LITTLE OR NO ADDED VACUUM

  MIDDLESWORTH JEFF

  MUHS THOMAS

  BOWE DEBRA HEUS

  HOHM GOTTFRIED JASON

  A corrosion protected knife and anvil system is disclosed. A source of lubricating fluid is provided to a lubricating fluid distribution mechanism

  coupled to both a knife blade and a salt bridge and an associated sacrificial anode. The sacrificial anode is consumed in order to protect corrosion on a rotating knife blade

  which intermittently contacts both an associated anvil in order to cut material used in making disposable products

  and the source of lubricating fluid. A knife holder holds a knife which is corrosion protected by an impressed current anode.

  ca

  Corrosion protected anvil and knife cutting assembly

• 1999

  Marathi

  English

  Hindi

  M.E.

  Manufacturing Engineeing

  Ph.D.

  Mechanical Engineering (INDS)

  University of Alaska

  Fairbanks

• 1995

  B.E.

  Metallurgy

• 381

  A corrosion protected knife and anvil system is disclosed. A source of lubricating fluid is provided to a lubricating fluid distribution mechanism

  coupled to both a knife blade and a salt bridge and an associated sacrificial anode. The sacrificial anode is consumed in order to protect corrosion on a rotating knife blade

  which intermittently contacts both an associated anvil in order to cut material used in making disposable products

  and the source of lubricating fluid. A knife holder holds a knife which is corrosion protected by an impressed current anode.

  us

  US 14/507

  Corrosion protected anvil and knife cutting assembly

  US 9

  661 B2

  Lloyd Krief

  Provided are methods and apparatus for transporting either an entire web or discrete components of disposable products. The invention is a means of conveying the web or diaper components down the machine using mechanical forces to grip the nonwoven web and transfer it from one belt or roll to another without or reducing added vacuum. There is a carrier nonwoven web that goes down the length of the machine and other substrates are added on top of this. Methods and apparatus are disclosed to provide sufficient gripping to allow transport of diaper components through the fabrication process. Securing and releasing forces are supplied so that the components can be retained at some points and released at others.

  us