This paper investigates the effect that the bulk lubricant concentration has on the non-adiabatic lubricant excess surface density on a roughened, horizontal flat pool-boiling surface. Both pool boiling heat transfer data and lubricant excess surface density data are given for pure R134a and three different mixtures of R134a and a polyolester lubricant (POE). A spectrofluorometer was used to measure the lubricant excess density that was established by the boiling of a R134a/POE lubricant mixture on a test surface. The lubricant is preferentially drawn out of the bulk refrigerant/lubricant mixture by the boiling process and accumulates on the surface in excess of the bulk concentration. The excess lubricant resides in an approximately 40 mm layer onthe surface and influences the boiling performance. The lubricant excess surface density measurements were used to modify an existing dimensionless excess surface density parameter so that it is valid for different reduced pressures. The dimensionless parameter is a key component for a refrigerant/lubricant pool boiling model given in the literature. In support of improving the boiling model, both the excess measurements and heat transfer data are provided for pure R134a and three R134a/lubricant mixtures at 277.6 K. The heat transfer data shows that the lubricant excess layer causes an average enhancement of the heat flux of approximately 50 % for the 0.5 % lubricant mass fraction mixture relative to pure R134a heat fluxes between 4 kW/m2 and 20 kW/m2. Conversely, both the 1 % and the 2 % lubricant mass fraction mixtures experienced an average degradation of approximately 60 % in the heat flux relative to pure R134a heat fluxes between approximately 4 kW/m2 and 20 kW/m2. This study is an effort toward generating data that can be used to support a boiling model that can be used to predict whether lubricants degrade or improve boiling performance.

In this report, we describe an extended corresponding states model for viscosity and thermal conductivity of mixtures implemented in version 8 of the NIST computer program REFPROP. The model is a modification of a one-fluid, extended corresponding states (ECS) model for thermal conductivity and viscosity originally developed by Ely and Hanley (Ind. Eng. Chem. Fundam., 1981, 20:323-332). We apply the model to selected mixtures representative of the fluids available in the NIST 23 database REFPROP (v8) such as refrigerants and natural gas constituent fluids, and present comparisons with experimental data. Comparisons are given for both gas, liquid, and supercritical conditions.

This publication provides guidelines for evaluating data from advanced mass calibrations and for establishing measurement assurance programs in precision mass calibration laboratories. The NIST Weights and Measures Division (WMD) will use these guidelines when evaluating advanced mass calibration data for State laboratories that request technical support, Recognition, and/or National Voluntary Laboratory Accreditation Program (NVLAP) accreditation.Advanced mass calibrations use weighing designs, such as those found in NBS Handbook 145 (SOP 4, 5), NISTIR 6969, Selected Publications, NBS Technical Note 952, and the NIST/SEMATECH e-Handbook of Statistical Methods that require the use of computer software (mass code) for the data reduction. These weighing designs are normally used when high precision (low uncertainty) mass measurement results are sought, although weighing designs can be used at any uncertainty level. The uncertainty reported using advanced weighing designs is based on the historically observed process of similar measurements and is very dependent upon correct procedures for defining these processes.

In this book, readers gain access to real scientific data pertaining to the science of sound production, promoting graph-reading, comparison, contrast, and calculation skills. Graphs show data from the following scientific instruments: Sound Pressure Meter (Microphone) This book allows readers to analyze real data without purchasing expensive lab equipment. This book contains data collected from a violin, alto recorder, flute, clarinet, and trumpet. Graphs display the tone quality associated with correct and incorrect techniques on these instruments. Also demonstrated in graphs are various common articulations (legato, staccato, accent, tenuto) and bowing techniques (legato, spiccato, pizzicato, accents, and clicks), with differences between steel core are perlon core strings as a focus for discussion. Later sections of the book elucidate common elements of phrasing and style, such as two-note slurs and short phrases, with graphical analysis. A final section includes graphs of short musical phrases without explanation, for readers to analyze. Bonus Material: Appendices include reprints of reference materials from Volume 1 for convenience, including comparison data, graphs of data for different types of microphone setups (mono, stereo, traditional stereo, &, x-y configuration) and graphs of theoretically calculated harmonic waves.

The electric dipole moment (EDM) challenge measures a non-zero proton EDM value and this book suggests how the challenge can be met. Any measurably large proton EDM would violate the standard model. The method to be employed uses an intense beam of 'frozen spin' protons circulating for hour-long times in a storage ring 'trap'. The smallness of EDMs allows them to test existing theories, but also makes them hard to measure. Such EDM experiments are inexpensive, at least compared to building accelerators of ever-greater energy.

In this book, readers gain access to real scientific data pertaining to the science of sound production, promoting graph-reading, comparison, contrast, and calculation skills. Graphs show data from the following scientific instruments: Sound Level Meter Tuner This book allows readers to analyze real data without purchasing expensive lab equipment. These data from musical instruments (strings, woodwinds, brass, percussion) can be used for lesson plans by teachers and parents. The musical instruments in this book include violin, flute, clarinet, saxophone, oboe and bassoon reeds, trumpet, trombone, 5 types of recorders (garklein, sopranino, soprano, alto, tenor, and bass), xylophone, drum pad, cymbals, gong, maracas, guiro, claves, triangle, maracas, wood block, castanets, Tibetan bowl, tuning fork, and voice. Bonus Material: Charts comparing tuning systems, instructions on calculating frequencies for different notes and scales, and derivation of the power series underlying just intonation tuning and scales are included. Pictures of the scientific instruments and musical instruments used in Volumes 1 and 2, sample setup pictures and discussion questions regarding laboratory equipment, and pictures of a comparison hydraulic experiment are also included. Notiz: Deutsch Ausgabe separat erhaltlich

Life is never a bed of roses. At times it moves left at other times right, sometimes it goes up and at other times down, pretty uncertain. However, if we know how to negotiate our way between the thorns and hurdles of life, the roses of success will be ours for picking. The greatest asset in the quest for success and happiness is our measure of selfconfidence. More than half of all life's battles are won or lost in the mind. Therefore, a person needs to saturate his or her mind with positive thoughts at all times. Our mind will then play host to many big ideas. Converting these big ideas into practical goals and longterm success calls for dollops of vision, hard work and perseverance. This book shows you how to shake off all the sloth and lethargy and get cracking right away on your tasks and goals in life. It teaches you how to overcome old habits and encumbrances on your journey to the highest peaks and how to mould your circumstances, rather than be moulded by them. And once you learn to face life headon with loads of selfassurance and selfconfidence, success and wellbeing will be yours for the asking.

The Transmission Electron Microscope (TEM) is the ultimate tool to see and measure structures on the nanoscale and to probe their elemental composition and electronic structure with sub-nanometer spatial resolution. Recent technological breakthroughs have revolutionized our understanding of materials via use of the TEM, and it promises to become a significant tool in understanding biological and biomolecular systems such as viruses and DNA molecules. This book is a practical guide for scientists who need to use the TEM as a tool to answer questions about physical and chemical phenomena on the nanoscale.

Communication is not always through sound or language. Much can be said with gestures and movement of eyes. In fact, more often than not, it is the body language that 'says' more than words. Now discover all the finer points and nuances of body language in this masterly work. How does a thumb gesture display dominance, superiority and aggression? How does dilatation of eyes send a romantic signal? What does a sideways glance indicate? Given these incredible insights, the book can prove to be of immense use for professionals like advocates, doctors, policemen, judges, salesmen, politicians, businessmen, executives, bureaucrats and customers, etc. in understanding the thought process reverberating through the mind of a person sitting/standing in front of them.

Want to be happy in right frame? Here are 10 steps you can take to bring more happiness into your life: 1. Be with others who make you smile 2. Hold on to your values 3. Accept the good 4. Imagine the best 5. Do things you love 6. Find purpose 7. Listen to your heart 8. Push yourself, not others 9. Be open to change 10. Bask in simple happiness Happiness and fulfillment are within your grasp, but sometimes just out of reach. Understanding what works best for you is the first step in finding more of them. Through 12 chapters in this book, the author gives you his thoughts to ponder to achieve happiness.

This book is both an introduction and a demonstration of how Visual Basic for Applications (VBA) can greatly enhance Microsoft Excel (R) by giving users the ability to create their own functions within a worksheet and to create subroutines to perform repetitive actions. The book is written so readers are encouraged to experiment with VBA programming with examples using fairly simple physics or non-complicated mathematics such as root finding and numerical integration. Tested Excel (R) workbooks are available for each chapter and there is nothing to buy or install.

In this book, readers gain access to real scientific data pertaining to the science of sound production, promoting graph-reading, comparison, contrast, and calculation skills. Graphs show data from the following scientific instruments: Sound Level Meter Tuner This book allows readers to analyze real data without purchasing expensive lab equipment. These data from musical instruments (strings, woodwinds, brass, percussion) can be used for lesson plans by teachers and parents. The musical instruments in this book include violin, flute, clarinet, saxophone, oboe and bassoon reeds, trumpet, trombone, 5 types of recorders (garklein, sopranino, soprano, alto, tenor, and bass), xylophone, drum pad, cymbals, gong, maracas, guiro, claves, triangle, maracas, wood block, castanets, Tibetan bowl, tuning fork, and voice. Bonus Material: Charts comparing tuning systems, instructions on calculating frequencies for different notes and scales, and derivation of the power series underlying just intonation tuning and scales are included. Pictures of the scientific instruments and musical instruments used in Volumes 1 and 2, sample setup pictures and discussion questions regarding laboratory equipment, and pictures of a comparison hydraulic experiment are also included. Notiz: Deutsch Ausgabe separat erhaltlich

In this book, readers gain access to real scientific data pertaining to the science of sound production, promoting graph-reading, comparison, contrast, and calculation skills. Graphs show data from the following scientific instruments: Gas Pressure Sensor Anemometer (Wind Speed) Dual-Range Force Sensor Sound Pressure Meter (Microphone) This book allows readers to analyze real data without purchasing expensive lab equipment. These data from musical instruments (strings, woodwinds, brass, percussion) can be used for lesson plans by teachers and parents. The musical instruments analyzed include violin, flute, clarinet, saxophone, oboe and bassoon reeds, trumpet, trombone, 5 types of recorders (garklein, sopranino, soprano, alto, tenor, and bass), xylophone, drum pad, cymbals, gong, maracas, guiro, claves, triangle, maracas, wood block, castanets, Tibetan bowl, tuning fork, and voice. Bonus Material: Graphs of data for different types of microphone setups (mono, stereo, traditional stereo, &, x-y configuration), graphs of theoretically calculated harmonic waves, and selected instrument measurement specifications are included. Plus, graphs from a simple pneumatic experiment provide contrast and context for the science of music. Notiz: Deutsch Ausgabe separat erhaltlich