bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Method of Determining the Transfer Function Parameters of a Capacitor Servomotor
Authors: Kandil S. A. , Makkar L. G. 
Published: January 2017

The aim of this paper is to establish a simple method for the calculation of the transfer function parameters of the capacitor servomotor. The equivalent circuits of a group of twelve capacitor servomotors of widely different parameters are simulated on a transformer analogue network analyser. An empirical formula expressing the reference voltage in terms of the motor speed, control voltage and the capacitance value is obtained. A torque equation for the capacitor servomotor is deduced by introducing the obtained formula in the torque equation of the two-phase servomotor derived by Saleh and Yuferov. The gain and time-constant of the capacitor servomotor are deduced from the proposed torque equation. Effects of the control voltage, as well as the effects of the capacitive reactance on the gain and time-constant, are also discussed. The torque-speed characteristics of a drag-cup capacitor servomotor are computed for different values of the control voltage and different capacitances using the proposed torque equation, and compared with those obtained experimentally. The experimental results are in good agreement with the theoretical calculations.
Measurement of Orifice Plate Edge Sharpness
Authors: Brain T. J. S. , Reid J. 
Published: January 2017

A significant factor which affects the accurate prediction of the discharge coefficients of square edged orifice plates is the precise shape of the edge. A rounding of only 0·002 of the orifice diameter can increase the coefficient by 1% so that a reliable method of assessing the edge sharpness is of considerable benefit to the instrument engineer. In the work described in this paper, a systematic intercomparison of three methods of measuring orifice edge sharpness has been undertaken. The methods tested involved casting, lead foil impression and optical techniques, and their relative reliability and effectiveness has been assessed. While the results obtained from the casting and lead foil methods showed good agreement, the foils did not follow the edge profiles as closely as the castings. The casting procedure can also be used to determine the shapes of re-entrant profiles which will not be detected using lead foil impressions. However, the casting method required more skill and considerably more time to complete measurements than the impression method. The optical method proved to be the least reliable, since measurements depended on subjective judgment. Nevertheless, this measuring procedure could be completed more quickly than the others, and these tests indicated that it may be used to examine large diameter plates for burrs or excessive rounding.
Dominant Mode Design of Third-Order Linear Control Systems: Part 1
Authors: Asbury A. 
Published: January 2017

The method of design involves three steps: Choose a closed loop system with the aid of contour plots of the performance criteria. Obtain the poles of the open loop inferred by the chosen system. Provide a synthesised transfer function which will correct the actual open loop to the form given by (2). This paper deals with (1) and provides the contour plots for: Time to 90% and to cross over. Time to within 1%. Overshoot and undershoot. Maximum rate. Velocity error constant. Bandwidth. Phase and gain margin. These are plotted against c and k where c is the ratio of real pole abscissa to the real part of the dominant complex poles and k is the ratio of the imaginary to the real part of the complex poles. A preferred region is defined which will be suitable for many industrial applications.
Ethical perspectives on the tenth commandment
Authors: Leslie Ben 
Published: January 2017

Appropriation of the tenth commandment into the teaching and proclamation of the church rests upon the foundation of sound exegesis which respects the covenant context of the Decalogue as it occurs in both Exodus and Deuteronomy. An exploration of this context reveals that the tenth commandment functions both as a summary of the second table, by speaking to the level of motivations and desires that might lead to the violations specified in earlier commandments, and as a recapitulation of the fundamental commitment required in the first table at the level of personal character and spiritual identity. In this light, the prohibition against coveting speaks to the covenant character of the listener in a way that anticipates the New Testament call to a transformation of character through conversion and discipleship. On the basis of this canonical perspective, a series of three brief trajectories are offered which illustrate ways in which the commandment might legitimately speak to issues of social justice, the challenges of contemporary affluence, and sexual lust.
Deuteronomy and adultery: A commandment to live free
Authors: Queen-Sutherland Kandy 
Published: January 2017

As the seventh commandment, “and you will not commit adultery,” Deut 5:18 is placed among the listing of covenant obligations that proceed from the primary divine declaration, “I am the Lord your God, who brought you out of the land of Egypt, out of the house of slavery” (Deut 5:6). Adultery as a willful act crosses the boundary lines that protect another man’s family. Legal stipulations within Deuteronomy call for the adulterer to be stoned—man and woman alike if she is married (Deut 22:22). Special regulations exist for virgins based on their status of being betrothed or not, and whether the sexual act occurred in the town or in the open country (22:23–29). In a patriarchal world, women more than men bore the shame and oppression of this commandment. Viewing adultery in the context of the biblical views of marriage and the use of Deuteronomy in the teachings of Jesus on divorce sheds needed light on this commandment. Adultery is likewise paralleled in Jewish tradition with the command to have no other gods. This metaphorical use of adultery is a key theme of the prophets in decrying the nation’s apostasy. Viewed as a whole, the thrust of the Deuteronomy Decalogue is freedom, emphasized at its beginning and again in the instructions for keeping the Sabbath when Exodus and Sabbath are tied together in Deut 5:15. To live in covenant with God is to live free from bondage. Freedom is maintained by observing the obligations of covenant, and one of those obligations is not to commit adultery.
Solving Traffic Problems in the State of Kerala, India: Forecasting, Regression and Simulation Models
Authors: Bollapragada Ramesh , Poduval Sudesh , Bingi S Chetty , Brahmbhatt Bhoomi 
Published: January 2017

Executive Summary Indian states have been facing traffic related issues including traffic congestions and accidents for decades. The situation has worsened with time due to the increasing population. This article investigates the causes behind the accidents and provides recommendations and measures that would bring forth an improvement in the traffic conditions. The research uses forecasting models to confirm the existence of traffic problem in the State of Kerala. The various reasons for the accidents were enumerated and classified. Using regression models, the relationship between the number of accidents, deaths, and injured were obtained. In addition, the relationship between the number of accidents and the number of vehicles on road were examined along with the type of vehicle, design of the roads, the design of traffic, and the design of road network. In addition, a simulation model is presented to study the effect of the change in design of roads on the traffic situation. As an example, a 15-minute time period can be used to count the number of vehicles of each type (buses, cars, and trucks) travelling in both directions on a major highway. This data can then be categorized into slow and fast moving traffic. The Mean time between arrivals, percentages of slow and fast vehicles, percentages of vehicles travelling in both directions can be calculated and used in ARENA simulation software to perform discrete event simulation. Various scenarios are simulated; and waiting times and potential number of accidents are found for each of the scenarios. Based on forecasting, regression and simulation models, this article provides several recommendations and managerial insights, which are believed to alleviate the traffic problems in the State of Kerala. The solution approaches from this research could be used for addressing similar traffic situations in other states of India, which could result in saving millions of lives over the next decade.
Study on the Effects of Infra- and Low Frequency Sound on the Sleep by EEG Recording
Authors: Inaba R. , Okada A. 
Published: January 2017

This study was performed to investigate the effects of infra- and low frequency sound on sleep. Healthy students were periodically exposed to sound stimuli with frequencies of 10, 20, 40 and 63 Hz throughout their sleep while EEG was continuously recorded. The effects were evaluated by the reaction rate and the changes of sleep pattern which consisted of the sleep efficiency index, numbers of changes in sleep stage and the proportion of each sleep stage to time in bed. The reaction rate was highest in sleep stage 1 and lowest in sleep stages 3 & 4. As concerns the exposures at sound pressure levels under 85 dB, there were no significant differences in the reaction rates for the four frequencies used. On the other hand, for sound pressure levels over 85 dB, the reaction rates observed at 40 and 63 Hz were significantly higher than those observed at 10 and 20 Hz. The sleep pattern was not significantly affected by exposure to the sounds used in this experiment.
The Effects of Infrasound on Pituitary Adrenocortical Response and Gastric Microcirculation in Rats
Authors: Nishimura K. 
Published: January 2017

To clarify the effects of infrasound on the body, rats were exposed acutely to infrasound. Responses of the pituitary adrenocortical system of the rats to infrasound were evaluated with their frequency characteristics according to changes of the plasma ACTH and corticosterone (corti.) concentrations. The gastric mucosal blood flow of rats was determined by the inhaled hydrogen gas clearance method, and changes in the microcirculation of the gastric mucosa by infrasound were evaluated. The frequency characteristics of the responses of the rat pituitary adrenocortical system were parallel to, and about 30 dB above, the threshold of sensation in the humans, and corresponded to about 80 phon on the equal-loudness curves. The gastric mucosal blood flow of the rats exposed to 16 Hz infrasound at 120 dB for 20 minutes was significantly reduced by 19.1% (p<0.01) 10 minutes after the beginning of the exposure as compared with the pre-exposure level. The percent changes of the bood flow were significantly smaller (p<0.01) in the exposure group 10 minutes after the beginning, and 10 minutes after the end, of the exposure than in the control group. From the results above, it seems probable that exposure to infrasound might influence the endocrine system and even autonomic nervous system.
Adsorptive and Membrane-Type Separations: A Bibliographical Update (1995)
Authors: Ray Martyn S. 
Published: January 2017

This paper provides a bibliography of the 1995 journal literature for adsorptive and membrane-type separations. The references are taken from the 50 most important chemical engineering journals. This paper provides an update to the literature as provided in previous bibliographic papers (Ray 1990a, 1991, 1994, 1995, 1996). A bibliography of the chemical engineering journal literature from 1967–1988 has been published by the author (Ray 1990b), and can provide access to a wider range of topics. A complete bibliographic listing of the chemical engineering journal literature from 1989 to 1995 (with subsequent six-monthly updates) is available on a CD-ROM database and full details can be obtained from the author. The papers included have been divided into the following subject groups: theory; design data; adsorbents; PSA and cyclic systems, and applications; liquid-phase adsorption; ion exchange, chromatography, etc.; membranes; and membrane-type separations.
Structure, Texture and Catalytic Properties of CuO/Fe2O3 and CuFe2O4
Authors: Youssef A.M. , Badr G.E. , El-Nabarawy Th. 
Published: January 2017

CuO/Fe2O3 (1:1) was prepared by co-precipitation. Six thermal products (I–VI) were obtained by calcination in the temperature range 300–800°C. The structures of I–VI were determined from XRD patterns and they were also identified from electrical conductivity measurements in the temperature range 313–523 K. The textural properties were determined from nitrogen adsorption at 77 K and the acidities of the thermal product were measured by pyridine chemisorption at 423 K. The decomposition of H2O2 over the catalysts I–VI was followed in the temperature range 303–323 K. Conversion of 2-propanol was investigated at 523 K. Calcination of CuO/Fe2O3 at 600°C resulted in partial transformation to CuFe2O4, this transformation predominating at 700°C and being complete at 800°C. Two mechanisms of electrical conduction are involved for catalysts calcined at 600–800°C depending on the temperature at which σ is measured. The surface area decreases and the average pore radius increases with increasing calcination temperature due to sintering and spinel formation. A mechanism is suggested for H2O2 decomposition and the activity and selectivity of the catalysts towards the conversion of 2-propanol are discussed.
Sorption Properties of Aluminas in Relation to Adsorbate—Adsorbent Interaction
Authors: El-Nabarawy Th. , El-Hakam S.A. , Youssef A.M. 
Published: January 2017

Five calcination products AI–AV were obtained by the calcination of alumina gel in the temperature range 673–1473 K. The adsorption of nitrogen at 77 K on these products was determined volumetrically. The chemisorption of H2, CO, CO2 and CH4 at 300, 320 and 340 K was also determined for each alumina sample. Increasing calcination temperature caused phase changes with formation of the most stable phase α-Al2O3 starting at 1273 K and predominating at 1473 K. Chemisorption depends on the nature of the adsorbent and the adsorbate molecules. The amount adsorbed was related to the critical temperature of the gas involved while the heat of adsorption was related to the strength of the interaction between the adsorbent and the adsorbate. The polarizability of the adsorbed gas molecule is a determining factor in its chemisorption, particularly on polar surfaces.
Surface Chemistry in Modern Nanotechnologies
Authors: Ogenko V.M. 
Published: January 2017

A review of the properties of fine oxide surfaces at the nano level is given based on the author's work. It includes a scheme related to the structure of pyrogenic silica and the changes induced by dehydroxylation as studied by quantum chemical and spectroscopic methods. The application of non-linear optical methods has appeared to be useful for the investigation of disperse solid structures. Quantitative measurements of intermolecular interaction have been obtained by light scattering. Alteration of the surface activity due to gas-phase electron–donor molecule action on chemisorbed complexes or functional groups on the surface is considered. It is also shown how the physicochemical properties of a solid surface can be changed as a result of chemical modification. The investigations discussed could lead in practice to the creation of new lightweight ceramic materials, adsorbents, catalyst supports, hollow-body microspherical fillers and medicinal preparations. Some of these are useful for nano electronics and instrument design as well as for the solution of some meteorological problems.
Temperature-Programmed Desorption Mass Spectrometry (TPDMS) of Dispersed Oxides
Authors: Pokrovskiy Valeriy A. 
Published: January 2017

Temperature-programmed desorption mass spectrometry (TPDMS) is discussed with reference to studies of modified pyrogenic oxides. Simple theoretical models are presented in order to allow an approximate analytical treatment of TPDMS data. The ‘unimolecular’ decomposition of alkoxide groups was studied. The rate constants of the reactions were derived from TPDMS measurements. The kinetics of thermal transformations of phosphorous and phosphoric acids on a pyrogenic silica surface were investigated by TPDMS. Oxidation–reduction reactions in samples containing phosphorous acid resulted in the removal of molecular phosphorus (P4). Two stages of phosphorus evolution were observed which were attributed to the disproportion of phosphorus in the surface monolayer (high-temperature stage) and in the bulk layers (low-temperature stage). The biologically active samples obtained by adsorption of cyanocobalamine, glucose and raffinose on ultrafine oxide surfaces were studied via a combination of temperature-programmed desorption and solid-state thermal analysis mass spectrometry (TPD/TA MS). The role of the charged cobalt atom and of the propionamide and benzimide groups in the adsorption mechanism is discussed. It was shown that the adsorption of cyanocobalamine on the silica surface transformed the propionamide group to a weakly bound form. TPD/TA MS data were obtained confirming the stable adsorption of glucose and raffinose on an ultrafine pyrogenic silica surface modified by amino groups.
Studies of the Effects of Aerosilogel Modification by Organic Acids under High Pressures
Authors: Sidorchuk V.V. , Tertykh V.A. , Leboda R. , Charmas B. 
Published: January 2017

Preliminary studies of silica surface modification by means of some organic acids under high reagent pressures were carried out. The reaction took place in a steel autoclave. Suitably granulated aerosilogel and acetic, mono- and trichloro-acetic as well as sulphosalicylic acids were used. Physical and chemical adsorption processes were checked by infrared spectroscopy, thermogravimetry and Potentiometric titration. The specific surface area and total volume of pores of the prepared samples were determined. The studies showed some possibilities of attaching organic radicals containing an acid group to the silica surface. This process can be accomplished in one stage.
Some Aspects of the Absorption of Electromagnetic Radiation by Heterogeneous Systems
Authors: Grechko L.G. , Levandovskii V.G. , Motrich V.V. , Volokh V.N. 
Published: January 2017

This paper describes the results of studies of the interaction of electromagnetic radiation and a heterogeneous system (HS) where the relevant accounting interfaces are generalized. The results obtained have been used for the calculation of the dielectric loss in a matrix disperse system (MDS) consisting of an aggregate of SiO2 particles (particle size ∼10−7 m) covered with hydrate. It has been shown that the dielectric loss in such systems occurs on the level of the imaginary part [Formula: see text] ∼0.1 at a frequency of 107 Hz. The absorption mechanism of electromagnetic radiation caused by the surface modes of an MDS with metallic inclusions of a spherical and ellipsoidal shape has been studied. It is shown that resonance absorption of the electromagnetic radiation is observed at the frequencies of the surface modes. The spectral characteristics of [Formula: see text] as a function of the parameters of the MDS have also been considered.
Methylprednisolone as an Intervention Following Myocardial Infarction
Authors: Stubbs Derek F. 
Published: January 2017

Results of early studies support the concept that steroid treatment may reduce mortality from acute myocardial infarction. This double-blind, randomized, 1118-patient study was performed to determine if methylprednisolone sodium succinate (MPSS, Solu-Medrol(R) Sterile Powder, The Upjohn Company) reduced 28-day mortality following myocardial infarction complicated by cardiac failure. Treatment with 30 mg/kg intravenous MPSS (maximum dose, 3 g) resulted in 28-day mortality rates of 11.7% with MPSS and 9.9% with placebo when treatment was initiated within six hours of the onset of chest pain (Group 1). Mortality rates at 28 days were 10.4% with MPSS and 14.7% with placebo when the treatment was inititated 6–12 hours after onset of chest pain (Group 2). In the late-treatment group, six-month mortality rates were 13.7% with MPSS and 20.3% with placebo (p=0.08) Analysis of data by life table methods showed similar survival rates between MPSS- and placebo-treated patients in Group 1. In Group 2, survival rates were increased in MPSS-treated patients in the intervals from 48 hours through seven days (p=0.04) and from three months through six months (p=0.03). A Cox regression analysis showed that the relative risk of death for Group 1 patients was similar, regardless of treatment; Group 2 patients on MPSS had a significantly decreased relative risk of death (p<0.01). MPSS treatment was not associated with increased incidence of myocardial rupture, cardiac aneurysm, early malignant ventricular arrhythmias, or other adverse cardiac events.
Delineating the Population Served by a Mobile Crisis Team: Organizing Diversity
Authors: Landeen Janet , Pawlick Julie , Rolfe Steven , Cottee Ian , Holmes Melanie 
Published: January 2017

Objective: While mobile crisis teams have proliferated to address gaps in service for individuals with serious mental illness, research into their effectiveness is limited. This study identifies specific cohorts of individuals served by a single mobile crisis team so that appropriate program evaluation could be designed and conducted for each unique grouping. Method: This retrospective study analyzes specific data from 4 sets of client records ( n = 401) at 4 different time periods, using a qualitative, text-based approach. For the first 2 reviews ( n = 69 and n = 40), only data related to referral source, sex, details of the reason for referral, and the mental status assessment were known to the researchers. The first 2 sets of records were used to identify the cohorts, the third set was used to confirm these cohorts, and the fourth set was used to determine the reliability of the classification tool. Results: All individual cases for the mobile crisis team could be classified into one of the following categories: Symptoms Disturbing Others, Symptoms Disturbing Self, Information Seeking, For Your Information, and Other. After the third review, the cluster, Symptoms Disturbing Others, was subdivided into Symptoms Disturbing Others–General and Symptoms Disturbing Others–Suicide. Conclusions: This review was useful in identifying specific cohorts of individuals served by a single mobile crisis team. Clearly identifying who is served by a mobile crisis team is the first step in identifying practice guidelines and appropriate evaluation measures for each distinct group.