Miracle-dz/UniFAR-FTUs huggingface dataset:
The GSM System for Mobile Communications

From the Publisher: This book is out-of-print, and a new second edition will be released by the end of 2002. The digital standard known as the Global System for Mobile (GSM) has captured a large share of the global cellular market. This book aims to bridge the gap between a readers basic knowledge of telecommunications and the complexities of the 5000-page GSM technical specification. It describes the system as a whole, covering all aspects of the standard, including mobile stations, switching equipment, the radio interface, infrastructure, transmission methods, and signaling protocols. System architects involved in the design of personal communications systems will find the book to be a complete description of the GSM communications system. It also may serve as a general introduction to digital cellular systems.
Factors Associated with Latino-Owned Business Survival in the United States

: This article uses 127,000 observations from three conﬁdential Census microdata sets at the individual ﬁrm and establishment level to investigate Latino-owned business survival. The merged microdata allows us to control for a wide array of personal, business, and regional characteristics. The analysis is based on hazard model. Relative to base categories, we ﬁnd the following decrease in the odds of survival: Latina-owned, Puerto Rican owned, and selling to the federal government. Owner education and low barrier sectors have no eﬀect, while start-up from personal savings increase the odds by 4 percent. The ﬁndings inform ways to expand regional economies through businesses operated by Latinos.
Feeling the intangible: antecedents of gratitude toward intangible benefactors

ABSTRACT Gratitude is felt when we perceive we have received a valuable good that is intended for our benefit. Although the majority of empirical research on gratitude has looked at benefit transactions between tangible benefactors, people also experience gratitude toward more intangible benefactors such as God, governments, corporations, and collectives. We apply construal level theory to gratitude toward intangible benefactors to shed light on how these abstract agents might elicit gratitude differently from more concrete benefactors. We review research on the antecedents of gratitude, including variables related to the benefactor, the recipient, relationship variables, and the benefit. We make predictions for how gratitude toward intangible benefactors such as God or the government may diverge from prototypical interpersonal gratitude, and we provide a roadmap for future research.
Health Shocks, Recovery, and the First Thousand Days: The Effect of the Second World War on Height Growth in Japanese Children

This paper uses the health shock of the Second World War on Japanese civilians to understand the effects of health shocks at different developmental stages on children’s long-run growth pattern and to test whether recovery is possible after an early life health shock. We construct a prefecture-level dataset of mean heights of boys and girls from ages six to nineteen from 1929 to 2015. Linking the heights recorded at different ages for the same birth cohort, we measure a counterfactual causal effect of the health shocks during the Second World War on the cohort growth pattern of children. We find that the war effect was greatest for cohorts exposed to the war in late childhood and adolescence: these cohorts were 1.7-3.0 cm shorter at adulthood and had delayed pubertal growth and slower maturation than they would have had if the war had never occurred. However, there were not persistent health penalties for children exposed to the war in early life, suggesting that catch-up growth was possible as health conditions improved after the war. These findings challenge the thousand-days consensus that children cannot recover from nutritional shocks in early life and indicate that adolescence is a sensitive period for health shocks. *TJC was supported by UK Medical Research Council grant MR/R010692/1. We thank Janet Hunter and Deborah Oxley for comments on drafts of the paper. We also thank conference participants at the All-UC– APEBH Meeting in Pasadena, LSE Historical Economic Demography Workshop, the European Historical Economics Society Meeting in Paris, the Measuring Well-being in the Past Workshop in Utrecht and the NYUAD-CEPR Economic History Conference in Abu Dhabi and seminar participants at LSE, Oxford and Paris Sorbonne for useful comments. Minami Yumitori provided excellent research assistance. The usual disclaimer applies.
Mixed convection jet impingement cooling of a moving plate

The mixed convection heat transfer details of a jet impinging targeted a moving heated plate are studied numerically under steady laminar flow conditions. The governing parameters for the present problem are: Reynolds number (Re), Grashof number (Gr), the velocity of the heated plate (U), jet width and distance from the heated plate. The results are presented to show the fluid and heat flow structure at different conditions with fixed width of the jet and fixed distance from the heated plate and different other parameters. It is observed that the bouyancy effects are more obvious at low values of Reynolds number and plate velocity and the forced convection is dominating at high values of Re and U. At low values of the plate velocity (U/V < 0.5 with Re = 200 and Gr = 1×104) it is observed that the heat transfer is reduced due to the opposing effects of the jet flow and the flow induced by the plate on one side of the plate. However the increase of the plate velocity more than (U/V > 0.5 with Re = 200 and Gr = 1×104) the heat transfer is increased due to the combined effect of the jet flow and the stronger flow induced by the movement of the heated plate.
NEW TIRE-STUD DEVELOPMENTS

ALTHOUGH THEY OFFER SNOWBELT MOTORISTS SUBSTANTIAL IMPROVEMENT OF VEHICLE CONTROL ON ICY ROADS, STUDDED TIRES HAVE BEEN ATTACKED WITH INCREASING VIGOR BY HIGHWAY OFFICIALS FOR THEIR CONTRIBUTION TO ROAD WEAR. TESTS OF SOME RECENTLY DEVELOPED TIRE-STUD DESIGNS SHOW PROMISE THAT THE SAFETY AND CONVENIENCE FACTORS OF STUDDED TIRES CAN BE RETAINED-BUT WITH A CONSIDERABLE REDUCTION IN THE AMOUNT OF ROAD WEAR CAUSED BY THEIR USE. IN ADDITION TO A REDUCTION IN WEIGHT AND MINOR DIMENSIONAL CHANGES, MOST OF THESE NEW TIRE STUDS ARE DESIGNED IN SUCH A WAY THAT THE CARBIDE PIN WILL MOVE FARTHER INTO THE STUD BODY IF, AT ANY TIME, THE PROTRUSION OF THE STUD FROM THE TIRE EXCEEDS A CRITICAL LIMIT. (THE GREATER THE PROTRUSION IS, THE GREATER THE IMPACT FORCE IS; AND IT IS HIGH-IMPACT FORCE THAT CAUSES THE ROAD WEAR). WITH THEIR BUILT-IN PROTRUSION-ADJUSTMENT CAPABILITY, THE NEW TIRE STUDS MAINTAIN NEARLY UNIFORM PROTRUSION THROUGHOUT THEIR LIFETIME. THEIR ABILITY TO DO SO IS UNAFFECTED BY DIFFERENCES IN WEAR RESISTANCE OF VARIOUS RUBBER COMPOUNDS, DRIVING SPEEDS, OR ROAD SURFACES TRAVELED. TIRES FITTED WITH THESE NEW STUDS SHOW AN INCREASE OF 75 PERCENT IN COEFFICIENT OF FRICTION ON SMOOTH ICE AS COMPARED TO IDENTICAL TIRES WITHOUT STUDS. COEFFICIENT OF FRICTION DECREASES ONLY ABOUT 5 PERCENT WITH SUCH STUDDED TIRES ON BARE CONCRETE (CEMENT) ROADS. NO DIFFERENCE AT ALL IN PERFORMANCE BETWEEN STUDDED AND UNSTUDDED TIRES HAS BEEN FOUND ON BARE BITUMINOUS PAVEMENT, DRY OR WET.
A RF MOSFET SPICE model with a new substrate network

A modified BSIM3v3 RF model including a new substrate network with divided junction capacitances is proposed to account for the substrate effect. The superiority of the model over several conventional models is demonstrated by observing good agreements between measured and modeled S-parameters up to 10 GHz. In order to verify the accuracy of modeling the output dispersion effect, modeled data of the effective drain-source resistance and capacitance for the new substrate network are compared with those for previously reported networks.
Effects of working depth and wheel slip on fuel consumption of selected tillage implements

Rising fossil fuel prices are leading to an increasing awareness of energy efficiency in plant production. Tillage in particular can consume large amounts of fuel. For four tillage implements (reversible mouldboard plough, short disc harrow, universal-cultivator, subsoiler), this study quantifies the effect of different working depths on fuel consumption, wheel slip, field capacity and specific energy consumption. A four-wheel drive tractor (92 kW) was equipped with a data-acquisition system for engine speed, vehicle speed, wheel speed and fuel consumption. Fuel consumption was measured in the fuel system with an integrated high-precision flow-meter. The results show that the area-specific fuel consumption increased linearly with working depth for both the mouldboard plough and the short disc harrow, but disproportionately for the subsoiler. Wheel slip was found to increase fuel consumption and decrease field capacity performance at all depths. The influence of the engine speed was shown in a separate experiment with a universal-cultivator. Increasing the engine speed from 1,513 r min -1 to 2,042 r min -1 results in an increase of 80% for the fuel consumption rate (L/h) and 35% for the area-specific fuel consumption (L/ha). Future measurement of drawbar pull will allow a more detailed analysis of the energy efficiency losses at the engine, the transmission, and at the wheel/soil interface.
Structural geology and petrophysics analysis to Injection wells of Mishrif Formation in Shuaiba Dome – Zubair Oil Field

Mishrif formation is the one of the most important reservoir in Southern – Iraq and the injection water important to support the reservoir pressure. The current study combined the interpretations of PLT, structural geology and petro-physics to understand the distribution of the injection rate for nine injection wells to the Mishrif Formation in Shuaiba Dome (or culmination) - Zubair Oil Field. PLT analysis calculated injection rate for Mishrif Formation, structural analysis included geometric and genetic analysis, whereas petrophysics analysis used open hole logs interpretation and core data for the injection wells to determine the petro-physics characteristics (especially the distribution of porosity and permeability). The current study concluded that the injection rate, porosity and permeability of Mishrif Formation distributed unequally across it. This variation is almost regular, whereas the Upper Mishrif more than Lower Mishrif, while Middle Mishrif get the least value. The thickness of Lower Mishrif more than Upper Mishrif. This may affected by a folding mechanism due to tectonic activity (reactivated basement faults and Hormuz salt structures).
Toward the concept of pockets of creativity in business processes

The study will cross-fertilise Information Systems (IS) and Services Marketing ideas through reconceptualising the information system as a service (ISaaS). The study addresses known limitations of arguably the two most significant dependent variables in these disciplines Information System Success or IS-Impact, and Service Quality. Planned efforts to synthesise analogous conceptions across these disciplines, are expected to force a deeper theoretical understanding of the broad notions of success, quality, value and satisfaction and their interrelations. The aims of this research are to: (1) yield a conceptually superior and more extensively validated IS success measurement model, and (2) develop and operationalise a more rigorously validated Service Quality measurement model, while extending the ‘service’ notion to ‘operational computer-based information systems in organisations’. In the development of the new models the study will address contemporary validation issues.
Pre‐service teacher understanding of propagation and resonance in sound phenomena

This paper describes results of an ongoing investigation into the understanding of sound, mainly among preservice K‐12 teachers. Recent work has focused on identifying difficulties in understanding sound propagation and resonance phenomena. We have found that within this population the concept of propagation, especially from one solid object to another, is not well understood.
Handbook of Research on Cyberbullying and Online Harassment in the Workplace

Image-based sexual abuse (IBSA), commonly known as revenge pornography, is a type of cyberharassment that often results in detrimental effects to an individual’s career and livelihood. Although there exists valuable research concerning cyberharassment in the workplace generally, there is little written about specifically IBSA and the workplace. This chapter examines current academic research on IBSA, the issues with defining this type of abuse, victim blaming, workplace policy, and challenges to victimsurvivors’ redress. The authors explore monetary motivation for websites that host revenge pornography and unpack how the dark web presents new challenges to seeking justice. Additionally, this chapter presents recommendations from the literature focusing on shifting cultural attitudes, effective legislation, and increased education and training. This chapter published as an Open Access Chapter distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and production in any medium, provided the author of the original work and original publication source are properly credited. Melody Lee Rood University of North Carolina at Greensboro, USA
Using the UCF Driving Simulator as a Test Bed for High Risk Locations

University of Central Florida (UCF) driving simulator could be a powerful tool to be used as a traffic safety test bed to identify potential problems of intersection design, explain interaction between drivers and roadway surroundings, and explore effective countermeasures to reduce traffic crash rates. To develop the UCF driving simulator as a safety test bed, this project focused on validating the driving simulator from two perspectives, Speed and Safety. To achieve this research objective, a signalized intersection that has one of the highest crash frequencies in Central Florida was replicated in the driving simulator system. Eight scenarios were designed at the intersection in a driving simulator experiment. Subjects based on gender classification and five age groups of interest including Very Young (15 to 19), Young (20 to 24), Younger Middle-aged (25 to 34), Middle Middle-aged (35 to 44) and Older middle-aged (45+) were recruited to test the eight scenarios. The experimental measurements based on subjects' performances in the simulator were compared to those measured in the field and police crash report analysis. It was found that drivers have similar driving performances and traffic risk patterns as found at the real intersection. Therefore, the experiment results validated that the UCF driving simulator could properly be employed as a test bed for driving behavior research and traffic safety studies.
Buckling of Steel Angle and Tee Struts

An experimental study was conducted on steel angle and tee struts to provide verification of the theoretical solutions for flexural, torsional-flexural, and plate buckling. The effect of slenderness and width-thickness ratios was examined for single angle struts and double angle struts with separators, with hinged and fixed end conditions. The slenderness ratio was varied from approximately 21 to 89 and the overall width-thickness ratios ranged from 10.0 to 17.3. Tests on 27 tee sections with hinged ends were also conducted. Good agreement is shown between the experimental and theoretical results. It is suggested that the flexural, torsional-flexural and plate buckling stresses be computed as per the established rational buckling theory and the least value be taken as the critical stress for the given strut.
SLAMMING OF SHIPS: A CRITICAL REVIEW OF THE CURRENT STATE OF KNOWLEDGE.

Abstract : The review of bottom slamming phenomena was undertaken to assure that maximum value will be gleaned from recorded data obtained on the SS Wolverine State. The review covers experimental laboratory and ship data and their correlation with available theory; and structural implications and possible design improvements. Although there are certain areas in the theory which require expansion, the most pressing need is for additional full-scale experimental data to provide confirmation of existing analytical techniques. (Author)
Farmers' Knowledge Management in Banana Cultivation in a Village of West Bengel, India: A Reflection of Farmer Managed Technology Adaptation and Transfer in Horticulture

The role of farmers as extensionists is as important as their much-championed role of experimenter; these are, in fact, complementary to a great extent. To illustrate the presumption a case study was conducted at Ghoragachha village of Nadia district, West Bengal. The case of banana cultivation with its historicity, local adaptation and spread was studied to reflect the essence of farmer-to-farmer extension. Focus group discussion was conducted with the farmers along with the employment of some basic RRA and PLA tools. The story of the technology generation has been delineated with the dynamics of its varied source of information, knowledge and experimentation. The trend of its spread in terms of number of farmers and area coverage, and price fluctuation has also been studied. The way farmers have adapted the technology after acting on different sources of technical know how has been articulated with a hint of its expressed impact. The study then went on to show the extent of spread the practice had undergone by the sole effort of farmers; this also describes some special kind of transfer mechanism of technology. At last a set of organizational, technological and policy and infrastructural interventions are proposed on the basis of lessons drawn from the negative and positive impacts found in the study area. As a whole, the study draws attention towards a special knowledge management extension approach, which is very much in vogue informally; it also indicates the possible spheres of intervention the formal, especially public extension agencies can make to their client system.
Jet Propulsion: A Simple Guide to the Aerodynamic and Thermodynamic Design and Performance of Jet Engines

Part I. Design of Engines for a New 600-Seat Aircraft: 1. The new large aircraft - requirements and background 2. The aerodynamics of the aircraft 3. The creation of thrust in a jet engine 4. The gas turbine cycle 5. The principle and layout of jet engines 6. Elementary fluid mechanics of compressible gases 7. Selection of bypass ratio 8. Dynamic scaling and dimensional analysis 9. Turbomachinery: compressors and turbines 10. Overview of the civil engine design Part II. Engine Component Characteristics and Engine Matching: 11. Component characteristics 12. Engine matching off-design Part III. The Design of the Engines for a New Fighter Aircraft: 13. A new fighter aircraft 14. Lift, drag and the effects of manoeuvring 15. Engines for combat aircraft 16. Design point for a combat aircraft 17. Combat engines off-design 18. Turbomachinery for combat aircraft Part IV. A Return to the Civil Engine: 19. A return to the civil transport engine 20. Conclusion.
KANBAN DEVS MODELLING, SIMULATION AND VERIFICATION

Kanban Control Systems (KCS) have become a widely accepted form of inventory and production control. The creation of realistic Discrete Events Simulation (DES) models of KCS require specification of both information and material flow. There are several commercially available simulation packages that are able to model these systems although the use of an application specific modelling language provides means for rapid model development. A new Kanban specific simulation language as well as a high-speed execution engine is verified in this paper through the simulation of a single stage single part type production line. A single stage single part KCS is modelled with exhaustive enumeration of the decision variables of container sizes and number of Kanbans. Several performance measures were used; 95% Confidence Interval (CI) of container Flow Time (FT), mean line throughput as well as the Coefficient of Variance (CV) of FT and Cycle Time were used to determine the robustness of the control system.
Measurement of V/sub T/ and L/sub eff/ using MOSFET gate-substrate capacitance

This paper describes and demonstrates new methods for the measurement of MOSFET threshold voltage and effective channel length using gate-to-substrate capacitance C/sub gb/. The measurement does not require DC drain current flowing between drain and source and thus eliminate the effect of source and drain resistances and the presence of an asymmetric potential profile between source and drain.
Studies on preparation and preservation of guava ready-to-serve beverage

Recipes for commercial prepration of guava RTS beverage were evaluated. The varietal suitability and storage stability were also examined. The recipe containing 10% pulp and 11% TSS with 0.25% acidity was found most ideal. The RTS beverage prepared from Sardar (L-49) was better than that of Allahabad Safeda, Apple Colour and Sangam. Storage stability of the product was found 4 months at ambient temperature.
On Micro Optical Elements for Efficient Light Diffusion

Keywords: micro optics ; high power laser ; beam shaping ; micro fabrication ; concave microlens array ; non imaging optics ; ray tracing ; compound parabolic concentrator ; diffuser ; angle transformer These Ecole polytechnique federale de Lausanne EPFL, n° 5530 (2013)Programme doctoral PhotoniqueFaculte des sciences et techniques de l'ingenieurInstitut de microtechniqueLaboratoire d'optique appliqueeJury: N. de Rooij (president), F. -J. Haug, A. Schilling, R. Voelkel Public defense: 2013-1-25 Reference doi:10.5075/epfl-thesis-5530Print copy in library catalog Record created on 2013-01-21, modified on 2017-05-10
Biomass processing technologies

Properties of Biomass Fuels Sustainability Considerations for Electricity Generation from Biomass Combustion of Biomass Gasification of Biomass Pyrolysis of Biomass Hydrothermal Processing of Biomass Anaerobic Digestion Esterification Fermentation of Biomass Fischer-Tropsch Synthesis from BioSyngas Bio-Oil Applications and Processing
Analytical model for the beam action of a tunnel lining during construction

Measurements on a 14.5‐m diameter bored tunnel have shown that the mechanised assembly of a segmented tunnel lining results in a permanent longitudinal bending moment in the tunnel lining. An analytical model for the beam action of the tunnel lining during the construction phase of bored tunnels is presented. The model incorporates many of the essentials in staged beam construction. It takes into account the influence of forces from the TBM, the loading of the tunnel lining by the grout in the liquid phase, and linear elastic properties of the tunnel lining and soil. Calculations are compared with measurements at the Groene Hart Tunnel (GHT), 20 km south of Amsterdam: the bending moment curve and vertical inclination of tunnel lining segments were compared. The measured bending moment curve is well reproduced. The measured vertical inclination of the lining segments is found to be governed by the beam action of the tunnel lining plus the influence of shear force in the lining. Copyright © 2011 John Wiley & Sons, Ltd.