Miracle-dz/UniFAR-FTUs huggingface dataset:
Assessing Rotor Stability Using Practical Test Procedures.

Perturbation testing of an industrial centrifugal compressor in an at-speed balancing chamber is discussed in PERTURBATION TESTING FOR ASSESSING ROTOR STABILITY. The instru­ mentation and data acquisition techniques are described, as well as test results from five different rotor-bearing configurations. The test results were used to choose a bearing design which optimized the rotor stability characteristics. A method determining when full scale perturbation testing is warranted, based on risk management 15 1 assessment techniques, is described in WHEN IS PERTURBA­ TION TESTING WARRANTED? Methods of quantifying risks are discussed, as well as determining which machines are good candidates for testing. PERTURBATION TESTING FOR ASSESSING ROTOR STABILITY The evaluation of rotor stability is an important aspect of turbomachinery rotor design. Selfexcited rotor instabilities have been responsible for millions of dollars of downtime, maintenance costs, and lost production. For this reason, much effort has been directed to understanding and predicting rotor stability perfor­ mance. As a result, rotor stability calculations have improved significantly in recent years, with much research effort devoted to understanding the destabilizing effects of oil ring seals, impeller­ diffuser interaction, labyrinth seals, fluid film bearings, etc. In conjunction with the improvements in mathematical models and computer techniques for calculating rotor behavior, improve­ ments in test equipment (transducers, signal analyzers, portable computers, etc.) have made it practical to obtain meaningful measurements concerning rotor stab�lity on full scale industrial machines. Here, a description is given of a series of perturbation tests performed on a high speed centrifugal compressor in an at­ speed vacuum balance chamber. The equipment used was readily available and involved relatively little additional cost over the normal high speed balancing procedure. Additional time in the vacuum test stand would be eight hours or less.
Effect of Biovet and probiotic (BM-Technology) on milk production in lactating buffaloes.

This trial was conducted for a period of 90 days at the Livestock Experiment Station, Bahadurnagar, Okara, Pakistan during September - November, 2002. Eighteen lactating buffaloes were divided into three groups A, B and C, with six animals in each group. Animals of Group A were fed a concentrate ration with 2 ml of Biovet per kg of feed, while those of Group B were fed an experimental ration having probiotic 500 gms in 100 kg of concentrate mixture. The Group C animals served as control group. The average daily milk yield was 7.60, 7.39 and 6.15 litres in groups A, B and C, respectively. The corresponding values for milk fat were 7.60, 7.39 and 6.15 percent. The daily feed intakes for concentrate mixture were 4.36, 4.38 and 4.41 kg, while fodder intakes were 35.28, 35.29 and 37.46 kg in respective groups. The values for feed efficiency per kg were 1.70, 1.75 and 2.14 on dry matter basis, 0.197, 0.203 and 0.251 on crude protein basis, while 1.05, 1.08 and 1.35 on TDN basis in Groups A, B and C, respectively. It was also observed that under same feeding and management conditions, the lactating buffaloes supplemented with Biovet (Group A) produced more milk @ 1.45 litres per day, while Group B buffaloes supplemented with probiotic produced 1.22 litres more milk per day than Group C. There was a significant (P<0.05) difference in milk yield between groups A and C, and B and C, while these differences were not significant for average daily feed intake and feed efficiency on crude protein basis. The Biovet (BM-Technology) has favourable effect on milk yield and feed efficiency due to beneficial micro-organisms (BM) and combined function for increased digestibility of concentrate mixture and fodder in lactating buffaloes.
An empirical analysis of the external finance premium of public non-financial corporations in Brazil

Our objective in this paper is to analyze empirically the relationship between the external finance premium of non-financial corporations in Brazil with their default probability and with their demand for inventories. As for the former relation, we find that corporations that have greater external finance premium have greater probability of default. As for the latter, we find that the external finance premium is positive and statistically significantly correlated. The results confirm previous results of the literature that indicate that the balance sheet channel of monetary policy is relevant in Brazil.
Gender and white-collar crime: examining representations of women in media?

Using documentary research methodology, we collected empirical data from three national Norwegian newspapers to examine the issue of gender and white-collar crime to examine representations of women in the media. Only 8 out of the 179 white-collar criminals presented in Norwegian newspapers in the years from 2009 to 2011 were women. This low ratio mirrors the representation of women entrepreneurs per se in the media in general. Issues surrounding white-collar crime are generally discussed in the literature of criminology using criminological theories, not entrepreneurship theories. As a result, little consideration has been given to the business issues surrounding white-collar criminality. We therefore synthesize material from the literatures of criminology and entrepreneurship to help answer the research question.
Why do people engage in collective action? Revisiting the role of perceived effectiveness

Research has shown limited support for the notion that perceived effectiveness of collective action is a predictor of intentions to engage in collective action. One reason may be that effectiveness has been in terms of whether the action will influence key decision makers. We argue that the effectiveness of collective action might be judged by other criteria, such as whether it influences third parties, builds an oppositional movement, and expresses values. Two hundred and thirty one attendees at a rally rated the effectiveness of the rally and their intentions to engage in future collective action. For those participants who were not members of an organization, intentions were linked to the perceived effectiveness of the rally in expressing values and influencing the public. For those who were members of an organization, intentions were linked only to the effectiveness of the rally in building an oppositional movement.
NONLINEAR MODELING AND INVESTIGATING THE NONLINEAR EFFECTS ON FREQUENCY RESPONSE OF SILICON BULK-MODE RING RESONATOR

This paper presents a nonlinear analytical model for silicon micromechanical ring resonators with bulk-mode vibrations. A distributed element model has been developed to describe the dynamic behavior of the micromechanical ring resonator. This model shows the nonlinear effects in a silicon ring resonator focusing on the effect of large amplitudes around the resonance frequency, material and electrical nonlinearities. Through the combination of geometrical and material nonlinearities, closed-form expressions for third- order nonlinearity in mechanical stiffness of bulk-mode ring resonators are obtained. Using the perturbation method and the method of harmonic balance, the expressions for describing the effect of nonlinearities on the resonance frequency and stability are derived. The results, which show the effect of varying the AC-drive voltage, initial gap spacing, DC-bias voltage and the quality factor on the frequency response and resonant frequencies, are discussed in detail. The nonlinear model introduces an appropriate method in the field of bulk-mode ring resonator design for achieving sufficient power handling and low motional resistance.
Utasforgalmi vizsgálatok a helyközi autóbusz-közlekedésben

A közszolgáltatásként végzett személyszállítás forgalmi vizsgálatai, az adatfelvételen alapuló helyzetkép és a társadalmi-gazdasági folyamatokra épülő előrebecslés a közlekedési stratégiaalkotás, a szolgáltatásés menetrendtervezés nélkülözhetetlen megalapozója. Időről időre szükség van az utasforgalmi adatállomány aktualizálására és a változások nyomon követésére, hogy észszerű gyakorisággal „naprakész” információ álljon rendelkezésre a személyszállításról, legyen szó akár konkrét áramlatairól, akár a közlekedési munkamegosztásbeli szerepéről.
Gladius and statolith as tools for age and growth studies of the squid Loligo plei (Teuthida: Loliginidae) off southern Brazil

Statolith and gladius were investigated for their suitability as tools for age and growth studies in the loliginid squid Loligo plei off southern Brazil. Statoliths when polished, revealed a series of concentric increments deposited around a nucleus. Consistent increment counts covered the squid's entire life-time and could be considered suitable for individual age estimation. Growth increments were observed on the dorsal surface as delimited by consecutive marks formed during low growth periods. Because early growth was masked during chitin deposition, total increment counts underestimated individual age. Gladius growth was highly correlated with somatic growth, and gladius increments could be used to reconstruct individual growth histories. Both statolith and gladius increments were deposited with the same, possibly daily, periodicity. It could be inferred that L. plei off southern Brazil might live up to around nine months of age.
Convex modeling of energy buffers in power control applications

This paper describes modeling steps for presenting energy buffers as convex models in power control applications. Except obtaining the optimal control, the paper also shows how convex optimization can be used to simultaneously size the energy buffer while optimally controlling a trajectory following system. The energy buffers are capacitors and batteries with quadratic power losses, while the resulting convex problem is a semidefinite program. The convex modeling steps are described through a problem of optimal buffer sizing and control of a hybrid electric vehicle. The studied vehicle is a city bus driven along a perfectly known bus line. The paper also shows modeling steps for alternative convex models where power losses and power limits of the energy buffer are approximated. The approximated models show significant decrease in computation time without visible impact on the optimal result.
A novel treatment of knee degenerative disorders all-in-one intra-articular injection of platelet-rich plasma combined with hyaluronic acid

Purpose: Therapeutic evaluation of all-in-one intra-articular (IA) injections of autologous platelet rich plasma (PRP) combined with hyaluronic acid (HA) for knee degenerative disorders. Material and methods: The protocol consisted in one or three IA injections, generally ultrasound guided, of a combination of PRP and HA prepared with the innovative Cellular Matrix device (CM-PRP- HA) on three cohorts of patients: A first cohort of 202 patients with meniscal lesions, comprising 93 patients with grade II or III stable meniscal tear, 59 patients after meniscal suture and 50 patients with meniscal cyst, a second cohort of 20 patients with Grade II or III osteoarthritis (OA) and a third cohort of 40 patients presenting post traumatic bone marrow edema (BME) comprising 20 patients with post-traumatic algodystrophy (PTA) and 20 patients with post-traumatic osteoarthritis (PTOA). The International Knee Documentation Committee (IKDC) subjective knee score and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain scale as well as magnetic resonance imaging (MRI) and ultrasounds were used to assess results. Results: Patients with meniscal lesion were treated with one injection of CM-PRP-HA. The follow up evaluation was done after one year. Significant improvement in the IKDC score (79.6/100 vs. 42/100 before treatment) was observed for patients with meniscal tears. Patients with meniscal suture presented no failure, while the success rate for patients treated for meniscal cysts was 70%. Patients with degenerative OA received 3 IA injections of CM-PRP-HA at day 0, at 2 months and at 6 months. Significant difference in the WOMAC pain scale was observed during the final evaluation at 9 months compared with value at day 0 (2.45 vs. 5.65). Patients presenting post traumatic bone marrow edema were treated with one IA injection of CM-PRP-HA and evaluated after one month. The pain score decreases from 8 to 4 for PTA and PTOA patients. This result was correlated with a reduction of bone marrow edema observed with MRI. Conclusions: The Cellular Matrix device has been designed to prepare intra-articular injections of a combination of PRP and HA for symptomatic treatment of articular pain and mobility improvement, essentially for patient suffering from knee OA. In this study, other indications for this innovative treatment are also proposed. CM-PRP-HA appears to be a more efficient alternative to visco-supplementation with HA for the symptomatic treatment of knee articular disorders, including pain reduction and increase of knee functionality for patients suffering of osteoarthritis, post traumatic bone marrow edema, meniscal tears, healing of meniscal suture and size reduction of meniscal cysts. Further investigations will determine the optimal frequency of IA injections with CM-PRP-HA, and whether this innovative product would represent not only a conservative treatment for various knee articular disorders but also a preventive treatment for OA, thus delaying the need for knee surgery.
Novel Lactam Type Pyridine Derivatives Improves Myocardium Dysfunction Derived from Ischemic Injury

: The extended acute myocardial ischemia (AMI) results in cardiac myocytes death. In the present study, we show that lactam pyridine derivative, SK-D80375, have the effects on cell survival in hypoxic cardiomyocytes and might be used as an anti-ischemic drug. The lactam pyridine derivatives are inhibitors of the late sodium current, which decreases sodium-dependent intracellular calcium overload in ischemia/reperfusion-injured hearts. We found that pretreatment with SK-D80375 significantly decreased the level of intracellular Ca 2+ and the expression level of the Na + -Ca 2+ exchanger by 39 ± 2.5% and 19 ± 0.5%, respectively in hypoxic cardiomyocytes compared to untreated controls. In addition, the expression level of sarcoplasmic reticulum Ca 2+ ATPase 2a was significantly increased by 37 ± 1.5% in SK-D80375-treated hypoxic cardiomyocytes compared to untreated controls. The induction of Hsp70 was observed in SK-D80375-treated hypoxic cardiomyocytes with dose-dependent manner and the highest level of Hsp70 was induced at the concentration of 2.5 µM SK-D80375. The echocardiographic analysis showed that heart function was significantly improved in SK-D80375-injected ischemic hearts. These results demonstrate that lactam pyridine derivative, SK-D80375, have beneficial effects on hypoxia-induced cell death, therefore, might be used as a novel anti-ischemia drug.
Contribution to the general theory of thermal fluctuations in nonlinear systems

A method is proposed for investigating the thermal fluctuations in an arbitrary system subjected to the influence of a dynamic perturbation (and in contact with a thermostat). An exact formula is obtained for the characteristic functional of the fluctuations of the macroscopic variables. The formula contains all the most general consequences of the basic postulates of statistical mechanics regarding the macroscopic variables. An infinite set of relations between the moment and cumulant functions of the equilibrium and nonequilibrium fluctuations (in particular, the Onsager reciprocity relations and the fluctuation-dissipation theorems) follows from the formula. The consequences of the additional assumption that the macroscopic variables are Markovian are also considered.
CHARGE TRANSPORT IN ORGANIC ELECTRONIC DEVICES

Organic materials are currently being examined for their potential use as active conducting media in electronic devices. Computational methods were used to study the transport characteristics across single organic molecules and through organic molecular crystals as well as the possibility of chemical impurities in crystals. In particular, the dependence of conductance on the central dihedral angle of single molecule junctions containing 4,4’-diaminobipenyl derivatives was probed by combining electronic structure calculations with a tunneling model and comparing to experimental results from literature. The calculations and model were adequate in reproducing the trend observed in experiment, implying that the differences in conductance across this class of molecules can be attributed mainly to the central dihedral angle. A method for calculating hole mobilities in organic molecular crystals at room temperature was considered for crystals of pentacene, tetracene, and anthracene. Computed mobilities were found to have a sensitive dependence on the calculated parameters and to insufficiently predict mobility trends across the materials. Impurities of water molecules in surface vacancy defects of pentacene crystals were studied through the use of molecular dynamics. Water molecules were found to bind to these defects, which has implications for charge transport through pentacene crystals.
Plant defense response against grasshopper herbivory

The objective of the current work was to study the defense mechanism of Maize plant (Zea mays var.GKSF2) against the herbivory caused by grasshopper (Choreodocus illustris). Fifteen plants of the selected crop were exposed to adult grasshoppers in varying number (10, 20 and 40) and compared with the control plants protected from insect attack. Accumulation of proline in insect attacked plant increased linearly and significantly with increased population of insects (10, 20 and 40 adults). In response to the insect attack highest proline contents (34.2 mgg-1 of fresh weight) were recorded with 40 adults. But, protein content in the infested leaf decreased consistently with the increase in insect population and lowest of 8.3% observed in plants with 40 adults of grasshopper. The chlorophyll content, leaf number and leaf area also suffered damage in proportion to the insect population. The chlorophyll was lowest as 2.2 mgg-1 of fresh weight in plants attacked by 40 adults. Number of damaged leaves (27) and damaged leaf area (72 cm2) was highest in the plants exposed to 40 adults of grasshopper. The correlation and linear regression analysis showed greater degree of dependence of protein content, chlorophyll content and leaf damage on the insect population. Moreover, proline accumulation in insect attacked plant also signaled the unattacked (control plant) for marginal proline accumulation.
Bioactive components in milk and dairy products

Milk is a complex liquid that has expanded its more conventional role and is more than a source of nutrients for young mammals. In the last few decades, a great deal of research has shown that milk and dairy products provide a broad range of bioactive components. Bioactive components can be defined as components in foods that have a physiological function. The aim of this study was to give a general overview on bioactive components found in milk and dairy products and what valuable health effects they might have. Milk consists of a mixture of components but the main components are water, lactose, fat, proteins and minerals. The composition of milk can differ and are influenced by number of dissimilar factors. In this thesis calcium, specific bioactive proteins (lactorferrin, α-lactalalbumin, β-lactoglobulin, glycomacropeptide, and immunoglobulin) oligosaccharides and conjugated linoleic acid will be overviewed. However, these components are just a small fraction of all bioactive components found in milk and dairy products. Some of them are natural milk components, others emerge during digestive processes or fermentation processes in dairy products. Numerous of health effects of these bioactive components have been described in in vitro studies, animal trials, a small number of epidemiological studies and human clinical trials. The studies show that these bioactive components exhibit antimicrobial effect, anticarcinogenic properties, ACE-inhibitory activity, anti-hypertension properties, effects on the cholesterol levels etc. Although bioactive components in milk and dairy products is a well studied area there is a lack of human clinical trials and epidemiological studies to draw conclusions regarding health benefits in humans. However, the development of functional foods with health properties is a market that is expanding and will continue to do so in the coming future. Through the knowledge and understanding of how these components function, new health promoted products can be developed.
ENERGY AND THE ENVIRONMENT: A REVIEW OF ALTERNATIVE ENERGY SOURCES

One of the greatest challenges facing humanity today has been identified as climate change. The world's ever increasing energy requirements are endangering the global environment. The overall dependence on fossil fuels to generate power throughout the nations is threatening the climate across the planet. The negative effects created by the use of fossil fuel generated power have made it apparently clear that the nations of the world need to develop and promote clean and renewable energy sources. The future of the Earth is dependent on the reduction of carbon dioxide and alternative energy that focuses on clean power and sustainability. Together these issues have encouraged the development and the use of alternative energy that is environmentally safe and economically effective. This study presents and reviews data covering various alternative energy sources and the progress of their perspective applications.
AECL-CONF-1416/FFC-FCT-451 (PART II)

Part I of this paper has identified significant boiling surface parameters affecting nucleate pool-boiling heat transfer and has investigated their parametric trends, thus providing a measure of the state of the art in this area. This part of the paper examines the existing prediction methods for the heat transfer coefficient (HTC) under this boiling regime. Six heat transfer poolboiling correlations that are well known in the literature have been selected and their prediction accuracy has been assessed against available and well-documented experimental databases. These databases provide HTCs obtained: (i) under pool-boiling conditions of fluids such as
Testing the fisher hypothesis for a recent period

The objective of this paper is to examine the Fisher hypothesis focusing on the recent period and a selection of four markets; the US, the Euro Area, Switzerland and Sweden. The relationship between interest rates and expected inflation is modeled using a survey of inflation expectations and estimated by the Johansen method of cointegration. Contrary to most of the recent literature, we find coefficients above one and the estimates are not significantly different from the hypothesized tax adjusted level for the US, the Euro Area and Sweden. We show that the test results on the Fisher hypothesis may be sensitive to the choice of inflation expectation proxy. We also find that as of 1990, the German and Swiss long term bond rates have included a significant predictive content about future inflation rates.