Miracle-dz/UniFAR-FTUs huggingface dataset:
Evaluation of Optimal Economic Life of Cemented Carbide Tool Turning AISI4340

As turning operation proceeds on a lathe machine, it is required that sufficiently good surface quality be achieved if all the affecting parameters, including tool geometry are held constant. In this paper, the effect of tool geometry variation due to wear in the case of C6 cemented carbide tool on AISI 4340, was studied. Using surface roughness as yardstick for estimating the point beyond which the maximum economic utilization derivable from the tool is hampered, it was realized that each insert should be replaced after ten minutes of turning operation to retain their optimum usefulness. The tool wear parameters were found to be in linear relationship with the cutting time, while the average surface roughness was modelled nonlinearly using an exponential function. A fourth degree polynomial approximated the trend for the cutting force. Sharp deflections were observed on the surface roughness and cutting force graphs after the tenth minute. Generally for the entire cutting time, the measured cutting force increased by about 33% while the flank wear width and crater wear width increased by 170% and 56% respectively. Surface roughness also increased by about 130%.
Competency-Based Achievement: Case study on Lecturer of Health Sciences Colleges in South Sulawesi

Professional Development of Lecturer is part of efforts to improve the quality of higher education institution. The success of a university lecturer agenda is largely determined by its competence. The objectives of this study are to emphasize the impact of competency towards lecturer’s achievement as well motivation at Health Sciences Colleges in South Sulawesi. By using a mixed method, the study found that the competency has significant influence on satisfaction and job performance of a lecturer, along with other variables that influence the performance of an educational institution. DOI: 10.5901/mjss.2016. v7n4p517
Acceleration and rotation in a pendulum ride, measured using an iPhone 4

Many modern cell phones have built-in sensors that may be used as a resource for physics education. Amusement rides offer examples of many different types of motion, where the acceleration leads to forces experienced throughout the body. A comoving 3D-accelerometer gives an electronic measurement of the varying forces acting on the rider, but a complete description of a motion also requires measurement of the rotation around the three axes, as provided, for example, by the iPhone 4. Here we present and interpret accelerometer and gyroscope data that were collected on a rotary pendulum ride.
Income Inequality and Education

Many commentators have seen the growing gap in earnings and income between those with a college education and those without as a major cause of increasing inequality in the United States and elsewhere. In this article we investigate the extent to which increasing the educational attainment of the US population might ameliorate inequality. We use data from NLSY79 and carry outathree-leveldecompositionoftotalinequalityintowithin-person, between-personandbetween- education parts. We find that the between-education contribution to inequality is small, even when weconsideronlyadjustedinequalitythatomitsthewithin-personcomponent. Wecarryoutanumber of simulations to gauge the likely impact on inequality of changes in the distribution of education and of a narrowing of the differences in average incomes between those with different levels of education. We find that any feasible educational policy is likely to have only a minor impact on income inequality.
On-Line Course Effectiveness: An Analysis of Student Interactions and Perceptions of Learning

Nineteen on-line graduate courses were analyzed in order to determine how perceived learning varies by course and its relationship to active and passive participation by students in online discussions. Study results provided evidence that significant differences existed by course, suggesting that quality assurance is an issue in Internet-based instruction. Moreover, female students felt that they learned more than their male counterparts. Only active interaction, operationalized by the number of messages posted by students per week, was a significant predictor of perceived learning. Passive interaction, analogous to listening to but not participating in discussions and operationalized by the number of accesses to the discussion boards of the e-learning system each week, was not significant. Dix-neuf cours en ligne de deuxieme cycle ont ete analyses afin de determiner comment la perception de l’apprentissage varie selon le cours et aussi afin de definir le lien avec la participation active et passive des etudiants dans les discussions en ligne. Les resultats de l’etude ont fourni des indices sur l’existence de differences importantes selon le cours, suggerant que l’assurance de la qualite est une question importante dans la formation utilisant l’Internet. De plus, les etudiants de sexe feminin ont le sentiment d’avoir appris davantage que le pensent leurs collegues masculins. L’interaction active, operationnalisee par le nombre de messages affiches par les etudiants par semaine, etait le seul indice significatif de l’apprentissage percu. L’interaction passive, analogue a ecouter mais ne pas participer aux discussions et operationnalisee par le nombre d’acces aux forums de discussion du systeme de e-learning chaque semaine, n’etait pas significatif.
Taking up the Slack: Lessons from a Cap-and-Trade Program in Chicago

The Emissions Reduction Market System (ERMS), an emissions-trading program for volatile organic materials (VOMs) in Chicago, Illinois, has been characterized by emissions significantly below the annual allocation of emission allowances, allowance prices much lower than predicted, limited trading, and emission allowances that expire unused. Essentially, it appears that a fundamental prerequisite for a tradable allowance program is missing—there is no scarcity of allowances. We evaluate a variety of hypotheses that may explain why the ERMS cap does not appear to be affecting abatement behavior and identify three that contributed to the lack of scarcity in the ERMS program: (1) a baseline process that inflated the cap; (2) hazardous air pollutant regulations that contributed to VOM reductions at some sources; and (3) numerous facility shutdowns. We conclude that the ERMS experience illustrates the inherent unpredictability of economic, regulatory, and other factors when setting an emissions target; a conclusion that resonates with the recent experience of the European Union Emissions Trading Scheme. This argues for gathering reliable emissions data, developing sophisticated emissions projections, and making transparent assumptions about the impacts of other policies and regulations during the program planning and design phase. However, even with all these attributes, it is still difficult to anticipate every possible outcome. Thus, it is desirable to have robust mechanisms to address the uncertainties of emissions-trading markets and to make midcourse corrections if necessary. Finally, we offer some comments on how to think about the results of ERMS versus a hypothetical command and control program that might have been designed to reach the same environmental outcome.
Pathogenicity of Avipoxviruses in Chickens Isolated from Field Outbreaks Reported in Chhattisgarh

Virulence of field isolates of Avipoxviruses was assayed by pathogenicity test performed in 5 weeks old unvaccinated chickens. Viruses as dry scab were collected from naturally pox infected chickens, turkeys and pigeon and propagated in CAM of embryonated chickens upto various passages. In two separate trials 1 and 2, the chickens were infected with 5th and 20th passage CAM suspension, respectively by feather follicle method. All chicken groups in both trials (except control group) developed primary lesions as ‘take’ reaction from 48 to 72 hr PI and there after further progressive development of primary lesion did not differ among field isolates. In trial 1, secondary stage began with recovery from primary lesions at feather follicle, spread of infection to comb and wattles with development of secondary pox lesions and finally recovery from disease was observed after 15 days in FPV and TPV infected chickens, but not in PPV infected chickens. In trial 2, secondary pox lesions were not observed in any of the chickens, indicating that 20 passage virus induced ‘take’ at site without further spread of infection. All the recovered birds and controlled birds were challenged with the virulent FPV. The result has indicated 100% survival of birds except in control birds. Precipitating antibodies was confirmed in all birds group except control group using AGID and CIE test.
Vibration Isolation of Magnetic Suspended Platform with Double Closed-loop PID Control

─ In magnetic vibration isolation field, magnetic force is used for the isolation, while the whole isolation system is always supported passively, which have noncontrol shortcomings. Aimed at this problem, a novel active control strategy with a double closed-loop PID algorithm was designed in this paper. The double closedloop strategy includes an internal and external loop control, which was designed to fulfill the magnetic levitation and isolation, respectively. Firstly, the vibration isolation strategy proposed in this paper was simulated in both time and frequency domain. The simulation results showed that this method possesses good performance of vibration isolation. Then, an active levitation and vibration isolation control experiment was designed. The experimental results showed that the control algorithm has a good vibration control effect under periodic vibration and random vibration conditions. Index Terms ─ Double closed-loop PID, magnetic levitation, vibration isolation.
Model of Fatigue Crack and Effect of Triaxiality

These article is devout to the fatigue crack growth and it’s simulation. The special problem of planar stress is discussed. The effectiveness of three-dimensional and two-dimensional crack is discussed. Both models are compared. In the article is shown that the simulation based only on the stress intensity factor K is much less accurate than the model based on combination of stress intensity factor K and stress triaxiality T. The stress triaxiality T can describe local influence of constrains and so improve crack model.
Graphene Dual Properties, Mobility and Polarisibility: The Challenge

Saktioto T1,2, Dedi Irawan1, Preecha Yupapin P3,4* and Prateep Phataracorn4 1Department of Physics, Faculty of Science, Universiti Teknologi Malaysia 2 Department of Physics, Faculty of Math and Natural Sciences, University of Riau, Pekanbaru, Indonesia 3Advanced Studies Centre, Department of Physics, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok, Thailand 4Quantum Life Institute, Supakprn Biz-Town, Nonthaburi, Thailand *Corresponding author: Preecha Yupapin P, Advanced Studies Centre, Department of Physics, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok 10520, Thailand, Tel: +66
Can Cryptocurrencies Preserve Privacy and Comply With Regulations?

Modern retail banking creates a kind of panopticon for consumer behaviour, ultimately promising to implement a mechanism that binds all of the financial activities undertaken by an individual to a single, unitary identity. In the age of Big Data, consumers have legitimate reasons to resist such surveillance, particularly in cases wherein monitoring is carried out without their knowledge and judgments based upon such monitoring are used to disincentivise or punish legitimate activities. The risk to consumers increases with the ever-increasing share of financial transactions that are performed electronically. Cryptocurrencies offer an alternative to traditional methods of electronic value exchange, promising anonymous, cash-like electronic transfers, but in practice they fall short for several key reasons. We consider the false choice between total surveillance, as represented by banking as currently implemented by institutions, and impenetrable lawlessness, as represented by privacy-enhancing cryptocurrencies as currently deployed. We identify a range of alternatives between those two extremes, and we consider two potential compromise approaches that offer both the auditability required for regulators and the anonymity required for users
Using software changes to understand the test driven development process

A bad software development process leads to wasted effort and inferior products. In order to improve a software process, it is important to first understand it. Our unique approach in this paper is to use code and test changes to understand conformance to a process. We analyze the meaning of these changes to obtain a deep, rich understanding about the process. In this paper we use Test Driven Development (TDD) as a case study to validate our approach. We designed a visualization to enable developers to better understand their TDD software process. We analyze our visualization by using the Cognitive Dimensions framework to discuss some findings and design adjustments. To enable this visualization, we developed a novel automatic inferencer that identifies the phases that make up the TDD process solely based on code and test changes. We evaluate our TDD inferencer by performing an empirical evaluation on a corpus of 2601 TDD sessions. Our inferencer achieves an accuracy of 87%.
Dynamics of orographic rain associated with the passage of a tropical cyclone over a mesoscale mountain

1 Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina, USA 2 Division of Microscale and Mesoscale Meteorology, National Center for Atmospheric Research, Boulder, Colorado, USA * Corresponding author address: Dr. Yuh-Lang Lin, Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina, USA; E-mail: yl_lin@ncsu.edu In this study, the Penn State/NCAR Mesoscale Model Version 5 (MM5) was used to simulate Supertyphoon Bilis (2000) in order to improve the prediction and the understanding of dynamics of orographic rainfall associated with the passage of typhoons over the Central Mountain Range (CMR) of Taiwan. The rainfall prediction is significantly improved by bogussing a vortex, compared to a previous study (Lin et al. 2002). We identified several common ingredients present in this case which are responsible for producing heavy rainfall. The most important ingredients appear to be the presence of convective available potential energy (CAPE), a potentially unstable layer, a very moist airstream impinging on the CMR, and the presence of a low level wind maximum associated with the outer circulation of the typhoon. A simple moisture flux model was also used to estimate rainfall, which compares well with observations. In addition, we also found that the orographic rainfall is dominated by moisture convergence and the contribution of moisture advection in the vicinity of the mountain is negligible. (
A Game-Theoretic Analysis of Skyscrapers

Skyscrapers are urbanism in the extreme, but they have received surprisingly little direct attention in urban economics. The standard urban model emphasizes differentials in access across locations, which determine land price differentials and building heights. This explanation leaves out an important force that appears to have historically influenced skyscraper construction: an inherent value placed on being the tallest. In this paper, we present a game-theoretic model of skyscraper development that captures this additional force. The model predicts dissipative competition over the prize of being tallest, a prediction consistent with the historical record. The paper discusses the implications of this result for the nature and efficiency of urban development and for the operation of urban real estate markets.
The Permeability Of Porous Media To Liquids And Gases

The standard procedure for determining the permeability of porous media according to APZ Code No. 27 (first edition, October 1935) is based on the fundamental assumption that, as long as the rate of flow is proportional to the pressure gradient, the permeability constant of a porous medium is a property of the medium, and is independent of the fluid used in its
Plot-Based Regeneration for Inner-City Neighbourhoods: Lessons from Traditional Masterplanning Practice in Glasgow

Conventional approaches to housing development in regeneration areas are failing to provide effective supply on the many derelict and vacant sites currently available in inner city Glasgow, exacerbating the loss of households to the suburbs, and leaving behind abundant developable but vacant land. Plot-based urbanism offers an innovative approach to development, based on the creation and maintenance of a structure made up of fine-grained elements, in the form of plots, capable of incremental development, by a range of agencies. The proposed approach is based on historical and morphological study of changing urban form and control in Glasgow; it suggests that the disaggregated pattern of land subdivision characteristic of the 19 century city remains of great relevance for future development. Initial results of the study suggest that the physical form and organisation of urban land might relate to the degree of self-organisation possible at neighbourhood level. By relating the physical characteristics and patterns of control of individual plots of land to the flow of investment into urban development, this study assists future master planning and investment in regeneration of city neighbourhoods, by suggesting ways of making investment more informed, and the development process more responsive, to the changing priorities which are an integral aspect of urban change. We argue that the publicly-funded sector could adopt the role of provider of opportunity for housing by others, capable of taking on the task of small-scale house building, within a strategically-sound framework established and guided by the publicly-funded sector itself, bringing increased control over the housing process to those participating in it. a PhD candidate, Urban Design Studies Unit, University of Strathclyde; b, , Urban Design Studies Unit, University of Strathclyde
Learning and Confirmation Bias: Measuring the Impact of First Impressions and Ambiguous Signals

We quantify the widespread and significant economic impact of first impressions and confirmation bias in the financial advice market. We use a theoretical learning model and new experimental data to measure how these biases can evolve over time and change clients’ willingness to pay advisers. Our model demonstrates that clients’ confirmation bias will reinforce the effect of first impressions. Our results also lend support, in a new financial context, to theoretical models of learning under limited memory where people use unclear signals to confirm and reinforce their current beliefs. We find that almost two thirds of the participants in our experiment make choices that are consistent with a limited memory updating process: they interpret unclear advice to be good advice when it comes from the adviser they prefer. Our results show that models that account for behavioral factors such as confirmation bias may be needed to explain some financial decisions.
Low frequency observations of radio relics and halos

Abstract Diffuse radio emission from galaxy clusters in the form of radio halos and relics are tracers of the shocks and turbulence in the intra-cluster medium. The imprints of the physical processes that govern their origin and evolution can be found in their radio morphologies and spectra. The role of mildly relativistic population of electrons may be crucial for the acceleration mechanisms to work efficiently. Low frequency observations with telescopes that allow imaging of extended sources over a broad range of low frequencies (<2 GHz) offer the best tools to study these sources. I will review the Giant Metrewave Radio Telescope (GMRT) observations in the past few years that have led to: i) statistical studies of large samples of galaxy clusters, ii) opening of the discovery space in low mass clusters and iii) tracing the spectra of seed relativistic electrons using the Upgraded GMRT.
Random Binary Local Patch Clustering Transforms Based Image Matching for Nonlinear Intensity Changes

This paper presents a new feature descriptor that is suitable for image matching under nonlinear intensity changes. The proposed approach consists of the following three steps. First, a binary local patch clustering transform response is employed as the transform space. The value of the new space exhibits a high similarity after changes in intensity. Then, a random binary pattern coding method extracts raw feature histograms from the new space. Finally, the discrimination of the proposed feature descriptor is enhanced by using a multiple spatial support region-based binning method. Experimental results show that the proposed method is able to provide a more robust image matching performance under nonlinear intensity changes.
Influence of Heat Pipe Operating Temperature on Exhaust Heat Thermoelectric Generation

Increasingly stringent targets on energy efficiency and emissions, as well as growing vehicle electrification are making attractive the electric recovery of the energy normally wasted through the tailpipe of Internal Combustion Engines. Recent developments in thermoelectrics (TE) may soon make them a viable solution for such applications [1]. This team has been exploring the potential of using TE modules in combination with variable conductance heat pipes for transferring the exhaust heat to the generator with very low thermal resistance and at a constant, prescribed temperature. This passive temperature control eliminates the need for bypass systems in the event of temperature overshoots. The operating temperature of a generator should be as high as possible in order to maximize the Seebeck effect. However, currently available modules are temperature limited. Moreover, the higher the HP temperature the less the usable thermal power at the exhaust will be (heat can only be transferred to from a hotter to a colder body). The present work assesses both theoretically and experimentally the influence of the HP temperature in the electric output of a thermoelectric generator. A small diesel engine and a generator were tested and it was found that a high HP operating temperature is only limitative for performance in the cases where low exhaust temperature and low engine power are present. In those cases it is possible to estimate an optimal HP temperature in order to maximize power output. The combined use of Seebeck modules and heat pipes was found to be highly advantageous in various ways.