On: “Experimental determination of effective demagnetizing factors for a short cylinder” by Knut Åm and Rune Otto Stemland (GEOPHYSICS, v. 40, p. 527–29)

Geophysics ◽  
1976 ◽  
Vol 41 (4) ◽  
pp. 774-775
Author(s):  
Sven‐Erik Hjelt

The authors have introduced the concept of effective demagnetizing factor to be used when measuring susceptibilities of highly magnetized samples. They have used one experiment to show that the factor thus defined differs considerably from factors computed theoretically. From its definition, it seems obvious that the numerical value of the effective demagnetizing factor will depend on the measuring geometry and, more so, on the shape of the sample. Furthermore, the relation between the new demagnetizing factor and susceptibilities calculated using it on the one hand, and true magnetization on the other hand, is far from trivial.

2018 ◽  
Vol 95 (1) ◽  
pp. 34-53 ◽  
Author(s):  
Ciro De Florio ◽  
Aldo Frigerio

The concept of soft facts is crucial for the Ockhamistic analysis of the divine knowledge of future contingents; moreover, this notion is important in itself because it concerns the structure of the facts that depend—in some sense—on other future facts. However, the debate on soft facts is often flawed by the unaware use of two different notions of soft facts. The facts of the first kind are supervenient on temporal facts: By bringing about a temporal fact, the agent can bring about these facts. However, on the one hand, the determination of the existence of these facts does not affect the past; on the other hand, assimilating divine knowledge into this kind of facts does not help the Ockhamist. The authors will argue that, to vindicate Ockhamism, another definition of “soft fact” is necessary, which turns out to be much more demanding from a metaphysical point of view.


2020 ◽  
Vol 8 (5) ◽  
pp. 454-468
Author(s):  
V. I. Stolts

The Bureau of the Gynecological Society instructed me, as an expert on the Petrovich case, to examine this case in today's public meeting. Taking into account, on the one hand, the fact that Dr. Petrovich is one of our members and that the determination of his moral guilt on a professional issue, drawn up not on the basis of subjective interpretations, which is full of the court's opinion, the opinion of the press and public opinion, but on the basis of strict and objective verification of Petrovich's actions should be of interest to the Gynecological Society, and on the other hand, having in mind the broad generalization of conclusions from this case in relation to doctors, as the prosecutor did in his speech and as the press does to this day, I I willingly took on this task and I want to share with you, gentlemen, my views on this matter and ask you to give your competent opinion on the issues that I will have the honor to pose and the resolution of which should clarify the guilt or lack thereof of Piotrovich.


2014 ◽  
Vol 659 ◽  
pp. 262-267
Author(s):  
Marian Truta ◽  
Marin Marinescu ◽  
Octavian Alexa ◽  
Radu Vilau ◽  
Valentin Vinturis

Present paper aims at revealing a way to determine the cinematic misfit within a 4x4 vehicle’s inter-axle driveline, which is eventually the reason of the self-generated torque occurrence. We used experimental methods to determine the magnitude of the cinematic misfit. Within this frame, we used a vehicle that has a longitudinal (inter-axle) differential and we locked it, actually forcing the longitudinal transmission to work without differentiating the angular speeds on its output shafts. On the other hand, the tire radii were different, inducing the above-mentioned cinematic misfit that we were looking for. We also present the way we fit the transducers on the vehicle’s driveline components to measure the needed parameters. The paper also presents some theoretical considerations regarding the occurrence of the cinematic misfit and its way of generating closed power loops within the vehicle’s transmission.


Author(s):  
Christian SCHULTHEISS

Abstract The distinction between disputes of sea boundary delimitation and disputes over the existence of maritime entitlements was one key element of the legal argument that the Philippines brought forward against China in the Philippines v. China Arbitration. On the one hand, the distinction between delimitation and entitlement allowed the Tribunal to establish its jurisdiction on several Philippine submissions despite the jurisdictional exclusions of China's declaration under Article 298(1)(a)(i) of the Law of the Sea Convention. On the other hand, the Tribunal's finding about the lack of China's entitlements has important consequences. China and a number of lawyers objected to the jurisdictional separability of entitlement and delimitation. The aim of this paper is to discuss the question of whether a tribunal can establish jurisdiction on the existence of maritime entitlements in a context where jurisdiction on boundary delimitation is excluded and where a determination of entitlements has consequences for boundary delimitation.


Author(s):  
Anna A. Proskurina

The paper addresses the problem of theoretical determination of the presence and quality of the necessary and steady interrelation between the consciousness and the giftedness of schoolchildren. It is argued for the need of a social philosophic approach to the solution of this problem in the perspective of subjective action. The problem is tackled by means of the theoretical analysis of speech functions in the performance of subjective action by a social individual. The study reveals, on the one hand, which subjective action elements the acting individual is necessarily aware of. On the other hand, it is shown which elements of self-concept, when purposefully and artificially developed, are an obstacle for the performance of subjective action


Author(s):  
Endang Sri Maruti

<p>Learning paramasastra (grammar), especially paramasastra Java, in the SBC between two poles. On the one hand, learning grammar is important to determine how the students' understanding of the Java language, on the other hand grammar learning integrable in four aspects already existing skills in the curriculum. Determination of the polemical stance in the face of an important thing to do, so that the teacher can determine the approach to be used in learning.</p><p> </p><p><strong>Keywords</strong>: approach, learning, paramasastra, the Java language</p>


Geophysics ◽  
1975 ◽  
Vol 40 (3) ◽  
pp. 527-529 ◽  
Author(s):  
Knut Åm ◽  
Rune Otto Stemland

Comparison between measurements on spheres and cylinders shows that a short cylinder with axial ratio (length/diameter) ≃0.9 and susceptibility ≃0.8 (cgs) has an effective demagnetizing factor N ≃ 3.7 both in the axial and radial directions. Hence, for a short cylinder with high susceptibility, the sum of the effective demagnetizing factors in three mutually perpendicular directions is less than 4π. This is important to know e.g., when determining the magnetic properties of highly magnetic magnetite ore samples.


2011 ◽  
Vol 133 (10) ◽  
Author(s):  
Krithiga Ganesan ◽  
Wojciech Lipiński

Abstract Overall transmittance of porous cerium dioxide is measured in the spectral range of 900–1700 nm using dispersive spectroscopy. Dense and porous samples of cerium dioxide with average porosities of 0.08 and 0.72, respectively, are investigated. The transmittance of both sample types increases with decreasing thickness, and this trend is more pronounced for the dense samples. The on-average spectrally increasing transmittance of the dense samples is attributed to the decreasing absorption by bulk cerium dioxide with radiation wavelength. The transmittance of the porous samples, on the other hand, remains approximately constant over the spectrum. Porous samples attenuate radiation stronger than the dense samples at any wavelength in the considered range, and it is hypothesized that this effect is due to more intense scattering. Sharp local variations of the transmittance are observed for both sample types.


1962 ◽  
Vol 35 (2) ◽  
pp. 491-497
Author(s):  
Haruko Fukuda ◽  
Jitsuo Tsurugi

Abstract The mechanism of acceleration of the commercial sulfenamide MSNR2 (NR2 denotes cyclohexylamino or morpholino and M denotes 2-benzothiazolyl) was studied by using diphenylmethane (DPM) as a model of rubber hydrocarbon. Since amine (NHR2) liberated from MSNR2 complicated the reaction, the results obtained here were compared and correlated with those using the simple sulfenamide MSNH2. The preceding paper reported that ammonia evolved from MSNH2 did not disturb the reaction. The reaction mechanism of MSNR2 in DPM both in the presence and absence of sulfur appear to be the same as those of MSNH2 respectively, though difficulties of the identification and determination of the products did not permit a clear-cut conclusion. In the DPM-sulfur-MSNR2-zinc butyrate system, MBT produced from sulfenamide via 2-benzothiazolylsulfenyl radical interacts with zinc butyrate to give zinc salt of MBT (MSZnSM). This compound, on the one hand, suffers induced decomposition by sulfur to give benzothiazolyl-sulfenyl radical again, and on the other hand, interacts with the radical ·NR2 to yield MNR2. The delayed action of MSNR2 was interpreted by induced decomposition only by ⋅Sx⋅ as compared with that of MSZnSM both by S8 and ⋅Sx⋅. The accelerating entity of the sulfenamide is the 2-benzothiazolylsulfenyl radical, which splits the S8 ring molecule, as in the case of other thiazole type accelerators. However, amine librated from the sulfenamide also is considered to accelerate the vulcanization.


TERRITORIO ◽  
2012 ◽  
pp. 112-115
Author(s):  
Paola Bracchi

Too big, fragmented, rundown and inaccessible. These and others are the reasons which the City of Rome used to justify the demolition of Tor Bella Monaca. A few questions should be asked here. Is it possible to turn the problems into potential for regenerating the neighbourhood? Is it possible to use a new description of Tor Bella Monaca to demonstrate that the project proposed by the City administration will not solve the problems identified? Strategic objectives for the regeneration project were formulated on the basis of the problems. These were permeability, connection and relationship. The map of the areas which can be changed is used as the key factor in the process. On the one hand it identifies the areas and spatial categories in which the strategic objectives are concretely addressed and on the other hand - thanks to a process of interpretation and abstraction - it is open to the determination of regenerative strategies.


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