Theoretical Line Research Articles

Behind the theoretical debate between Hans Kelsen and Carl Schmitt: the nineteenth century constitutionalism and German public law

This paper aims at identifying the reminiscences of 19th century constitutionalism and German public law behind the theoretical discussion around the constitutional jurisdiction in the doctrines of Hans Kelsen and Carl Schmitt. The doctrines on the question of sovereignty and constitution between the 19th and early 20th centuries also become the object of study as they reflect on the theoretical debate between Hans Kelsen's Neokantian positivism and Carl Schmitt's decisionism. Finally, from the notions of separation of powers, sovereignty, and constitution provided by these authors, the research aims at identifying the theoretical lines and concepts that may have contributed to the construction of the notion of guardian of the constitution. As a result, it was possible to verify that while Schmitt's constitutional theory carries much of his "political theology" with it, Kelsen sought, with his Pure Theory of Law, to evade from the theological method present in other legal theories (especially in Schmitt's). His intention was to build a legal science free of strange elements to Law, such as morality, politics and religion, which reflected in the choice of who should be the guardian of the Constitution. We developed this research through the analysis of historical sources and bibliographical research in the main writings of Carl Schmitt and Hans Kelsen on constitutional theory. As historiography, we sought specialized literature on the main subjects and theorists researched, from great names from that time and by contemporary well-known authors.

Eliminating the Influence of Axle Parameters in Influence Line Identification

Accurate and rapid acquisition of the strain influence line of continuous beam plays a positive role in promoting the wide application of structural health monitoring. The structural response obtained from the sensors is used to estimate the strain influence line. However, most estimation methods ignore the influence of axle parameters on the structural response, resulting in a large error in identifying the strain influence line. This paper presents a method for eliminating the influence of axle parameters of moving vehicles on strain responses to estimate the strain influence line of continuous beams based on the long-gauge strain sensing technology. By analysing the mechanical characteristics of the multi-span continuous beam, a theoretical strain influence line expression is first established to obtain the strain influence line of the continuous beam accurately. The structural response only caused by axle weight, obtained by eliminating the influence of axle parameters, is then estimated for calibrating the theoretical strain influence line. Finally, different lane tests are also considered to solve the influence of different transverse position relations on the proposed method between the monitoring unit and the lane. Finally, numerical simulations are adopted to illustrate the effectiveness of the proposed identification method by simulating the strain time histories induced by a multi-axle vehicle. A field test also demonstrates the validity and feasibility of this method.

Triple oxygen isotope systematics of diagenetic recrystallization of diatom opal-A to opal-CT to microquartz in deep sea sediments

The oxygen-18 isotopic composition (δ18O) of silica preserved in oceanic sediments is an important archive of Earth’s temperature and/or seawater δ18O from the Archean to present. Recent advances in high-precision measurements of both δ18O and δ17O values have been used to provide additional constraints on what the oxygen isotopic composition of chert reflects about past conditions. Here, we examine the effects on the triple oxygen isotopic composition of chert that occurs during transformation and recrystallization of biogenic opal-A to opal-CT to microquartz in deep sea sediments. We studied late Miocene to present samples from the Sea of Japan at ODP Site 795 and measured biogenic diatom opal-A, opal-CT, microquartz chert, and ‘altered’ opal-A samples—previously measured for δ18O values only—for both δ18O and δ17O values. We find that δ18O decreases and Δ′17O increases (where Δ′17O = δ17O – 0.528 × δ18O) with depth, coincident with the conversions from diatom opal-A to opal-CT to microquartz. Silica samples deviate from the trend expected for triple oxygen isotopic equilibrium with modern seawater. To explain these data, we developed a model that shows that local temperature gradients and pore fluid δ18O profiles in combination lower the measured opal-CT and microquartz δ18O values and raise the Δ′17O values relative to the initial opal-A, but deviate from triple oxygen isotopic equilibrium with seawater. We find that a steeper local temperature gradient and a larger influence of hydrothermal alteration of basalt at the base of the sediment column (which lowers pore fluid δ18O values) in the past explain both the measured δ18O and Δ′17O values of the opal-CT and microquartz.These data and our modeling show that the transformation of opal-A to microquartz in marine sediments at elevated temperatures and in the presence of lowered pore water δ18O values leads to an array that falls below the theoretical triple oxygen isotope line of equilibrium for SiO2 with modern seawater. Further, our model indicates that opal-CT and microquartz do form in triple oxygen isotopic equilibrium with pore fluids that are offset in their triple oxygen isotopic composition compared to seawater due to fluid-rock alteration of igneous rocks at the base of the sediment column. The diagenetic processes taking place in the Japan Sea do not explain a large portion of the existing Archean to present triple oxygen isotope chert data, which likely require either changes in the oxygen isotopic composition of the source water (i.e., ocean water) and/or alteration by meteoric fluids. Further, our data demonstrate that the triple oxygen isotopic composition of preserved chert need not represent surface conditions, but instead may reflect processes that occur in subsurface sediments at elevated temperatures and with modified pore fluid oxygen isotopic compositions.

Chandra revisits WR 48a: testing colliding wind models in massive binaries

ABSTRACT We present results of new Chandra High-Energy Transmission Grating (HETG) observations (2019 November–December) of the massive Wolf–Rayet binary WR 48a. Analysis of these high-quality data showed that the spectral lines in this massive binary are broadened (full width at half-maximum, FWHM = 1400 km s−1) and marginally blueshifted (∼−100 km s−1). A direct modelling of these high-resolution spectra in the framework of the standard colliding stellar wind (CSW) picture provided a very good correspondence between the shape of the theoretical and observed spectra. Also, the theoretical line profiles are in most cases an acceptable representation of the observed ones. We applied the CSW model to the X-ray spectra of WR 48a from previous observations: Chandra-HETG (2012 October) and XMM–Newton (2008 January). From this expanded analysis, we find that the observed X-ray emission from WR 48a is variable on the long time-scale (years) and the same is valid for its intrinsic X-ray emission. This requires variable mass-loss rates over the binary orbital period. The X-ray absorption (in excess of that from the stellar winds in the binary) is variable as well. We note that lower intrinsic X-ray emission is accompanied by higher X-ray absorption. A qualitative explanation could be that the presence of clumpy and non-spherically symmetric stellar winds may play a role.

Moving load test-based rapid bridge capacity evaluation through actual influence line

With increasing service times and performance deteriorations, the cost of inspecting and maintaining aged bridges increases dramatically, and becomes a massive challenge. There is an urgent need to explore a cost-effective and rapid evaluation method for determining the load capacities of large quantities of short/medium-span bridges. In this study, an influence line-based moving load test method was proposed for a rapid bridge capacity evaluation. The influence line of the bridge was initially extracted using the moving load test. The ratios of the maximum amplitude and total area between the actual and theoretical influence lines were defined as the capacity evaluation indices for the bridge. Based on numerical validations of three typical deterioration conditions, the proposed evaluation indices were proven to be equivalent to the conventional static evaluation index. In addition, in-situ static load and moving load tests were conducted to verify the effectiveness of the proposed method. The results show that relative to the static evaluation index, the proposed indices have a maximum difference of 1.5% in the numerical validations and 2.2% in the in-situ tests, indicating that the proposed method is accurate and more effective for future short/medium-span bridge capacity evaluation.

Loss reduction strategy and evaluation system based on reasonable line loss interval of transformer area

As the wiring of distribution network becomes more and more complex, it is difficult to calculate the theoretical line loss of low-voltage distribution transformer area and the evaluation index of transformer line loss is extensive. In this paper, a reasonable interval calculation model of line loss is established based on the data of electricity information acquisition system. Firstly, the collected data are processed in the image format, and then the line loss calculation model is established based on the convolutional neural network. This model can estimate the reasonable line loss interval according to the operation data of different transformers. On this basis, the line loss evaluation system is established and the loss reduction strategy of abnormal transformer is formed. The method in this paper can be used to evaluate the line loss level of distribution transformer area more accurately. It also can improve the quality and efficiency of line loss lean management and produce certain effect for electric energy conservation and improving economic benefit of power supply.

Питання термінування владних повноважень як маркер стратегій сучасного капіталізму: особливості ситуації в країнах Латинської Америки та Карибського басейну

As part of the goal of the work, an attempt was made to clarify some theoretical lines of forming ideas about the meaningful essence of the future in the context of the implementation of certain political and economic strategies of today and the design of the appropriate institutional conditions. In the context of the tasks set, some aspects of the concepts of liberal-meritocratic capitalism and state political capitalism are analyzed, the lines of institutional differences in the development of political and legal mechanisms, the nature of changes in the political regime are highlighted. The symptomatic nature of the development vector, the factor of indefinite extension (or cancellation) of powers of power in the context of general tendencies of content is affirmed. From this theoretical and methodological point of view, significant changes in the situation in some countries of the LAC region are considered. It is concluded that the trend of political and geographic expansion of the most relevant variants of capitalism will continue: 1. liberal meritocratic capitalism (based on the model of US capitalism) and 2. the newest state political capitalism (the matrix is the model of China). Significant transformations in the plane of institutional and legal processes, which ultimately symbolically and illustratively focus on the problem of the term of power, will act as a marker of a certain vector of development of a country. They will, among other things, be presented at the level of theoretical developments on the dilemma democracy – statehood, controllability, conceptual tasks of understanding stability of power in the face of qualitatively new challenges of our time and will be expressed in different ways in constitutional creativity, legal methods concerning attempts to change the balance between the branches of government in favor of the executive branch, with derivative measures to remove restrictions on the length of time in senior government positions. It is emphasized that, according to research by the R. Inglehart and K. Welzel Center, people in the LAC region are accustomed to thinking in the framework of broad collectivist projections and their value-oriented attitudes, which, combined with efforts to find messianic motives for socio-economic transformations, can lead to development strategies that are local in origin, which will become important in the perspective of the universal dimension.

The ammonia absorption spectrum between 3900 and 4700 cm−1

Room temperature absorption spectra of ammonia have been recorded by high-resolution Fourier transform spectroscopy in the range 3900-4700 cm–1 at four pressures (13, 46, 140, and 304 Pa). The investigated spectral region overlaps the important 2.3 µm atmospheric transparency window. 8419 absorption lines were retrieved from the recorded spectra. Line intensities range between 1 × 10−25 and 1.6 × 10−20 cm/molecule. The rovibrational assignments, relying on the position and intensity agreement with the C2018 theoretical line list (Coles et al. 2018), were validated by the systematic use of Lower State Combination Difference (LSCD) relations. 6052 transitions were assigned to 51 vibrational bands of the main isotopologue, 14NH3, and 625 transitions of the 15NH3 minor isotopologue were identified. Overall, the assigned transitions represent over 99.8% of the integrated absorption at room temperature in the region. The upper state empirical energy of a total of 2287 rovibrational levels of 14NH3 were derived. Among them, 1870 are newly reported. The achieved quality of the LSCD relations indicates that the accuracy of the derived energy levels is better than 0.001 cm−1. Comparison with the HITRAN2020 list shows that the present results will be valuable in improving the ammonia spectroscopic databases in the region, both in terms of completeness and accuracy of the line positions and line intensities. A recommended line list for ammonia in natural isotopic abundance is provided for the studied region.

Effect of graphene oxide in the formation of polymeric asymmetric membranes via phase inversion

Membrane morphology of integrally skinned asymmetric membranes made by phase inversion can be tailored by precise control of the thermodynamic properties of the casting solution. In this work, the morphology of polyethersulfone (PES) and polyvinylidene fluoride (PVDF) membranes containing graphene oxide (GO) and their phase separation behavior have been studied. The Flory-Huggins theory and the Hansen solubility parameters have been used to construct theoretical binodal lines for ternary and quaternary systems, which have been validated by conducting cloud titration experiments. Moreover, the effect of different solvents on the morphology of PES membranes is discussed through the thermodynamic and kinetic properties of the casting solutions. Nontoxic solvents dimethyl sulfoxide (DMSO) and dihydrolevoglucosenone (Cyrene™) induce PES/GO membranes with finger-like pores and cellular voids, respectively. The addition of GO in the PES and the PVDF casting solutions increases their thermodynamic instability, leading to thinner selective top layers and higher porosities, up to a point where the high viscosity of the GO-containing solutions hinders the solvent-nonsolvent demixing. The highest porosity and pure water flux (PWF) occurs at 0.1 wt% GO for PES/GO/DMSO and at a loading of 0.3 wt% GO for systems PES/GO/Cyrene and PVDF/GO.

Le parole sul muro sono un’altra cosa. La re-materializzazione dell’opera d’arte: Lawrence Weiner dalla carta alla parete

Within the art circles that, between 1966 and 1972, engaged in the dematerialization of the artwork (Lippard 1973), Lawrence Weiner is probably the one who used language most coherently and exclusively. The verbal enunciation of the sculpture becomes the sculpture itself; any possible fabrication is left to the receiver; each option is equally legitimate. This rigorous theoretic line is, however, complicated by the transfer, starting in the early Seventies, of his writings from paper to walls. The transition occurs in Italy when Weiner visits Giuseppe Panza di Biumo in his Villa in Varese and finds there one of his artworks printed or painted on the wall (Weiner 1982). The event marks the start of a series of experimentation on fonts and typographic composition. The wall contradicts both the dematerialization of language and the tridimensionality of sculpture, reintroducing visuality within conceptuality. The paper examines the preconditions and the consequences of this return, exploring its connections with the international art world and in particular the links with the Italian context, where Arte Povera on one side and the verbal-visual researches on the other were redefining the relationship between art and language.

Deadlines Can Improve Surgical Care

Whether perfectionist or procrastinator, it is natural to dread a deadline. No matter what profession (ie, journalist, teacher, lawyer, congressman, or surgeon), the panic of a looming deadline is what nightmares are made of. Christopher Cox's recent publication “The Deadline Effect” explores the power of deadlines.1 His book describes how deadlines have the potential to either paralyze or motivate and empower the individual to solve problems (big or small) for which the theoretical line in the sand has been drawn.

The Theoretical and Technical Line for the Design of Ecological Water Conservancy Projects

The Theoretical and Technical Line for the Design of Ecological Water Conservancy Projects

A reverse approach to evaluate membrane pore size distribution by the bubble gas transport method using fewer experimental data points

Membrane technologies have been successfully developed as the separation and purification processes, such as desalination, wastewater treatment, gas separation and so forth. It is known that membrane pore size and pore size distribution (PSD) are the factors by which membrane performance is significantly affected. In this study, a novel mathematical model is presented to evaluate the PSD. Although the new model is based on the bubble gas transport method, it is different from the conventional approach since this model starts from the assumption of a distribution function, typically Gaussian normal distribution, for the PSD, and a flow rate versus pressure line is drawn theoretically based on the assumed PDS. Then, the mean pore size and standard deviation of the PSD are optimized by the best fit of the theoretical line to the experimental one using the nonlinear regression analysis. A unique feature of the proposed model is that fewer experimental data points are necessary to find the optimal PSD. In addition, experiments with the dry membrane are no longer required. The PSDs estimated by this model for three commercial membranes were compared with those obtained by the conventional method, and an excellent agreement was observed.

Optimal analysis of gear modification fitting in alternating time domain aiming at minimizing meshing-in impact of teeth-pair contact interface

In a pair of actual gears alternating meshing process, the transmission system errors and thermal elastic deformation of the gear teeth can cause gears in the meshing zone to form high contact pairs inconsistently mesh-in and mesh-out points to deviate from the theoretical line, which will lead to sudden changes in meshing velocity and an instantaneous meshing effect. Offline meshing impact generates large additional loads, and it increases the vibration and noise of gear transmission system. Further, the gear teeth mesh-in impact is significantly greater than that of gear teeth mesh out. Therefore, to analyze the impact with the minimum value of gear teeth mesh in, the initial mesh-in points need to be determined, and the meshing impact velocity and impact force of teeth meshing-out need to be calculated. The optimized meshing tooth-pair contact interface (CI) anti-impact numerical calculation mode is validated using the loaded teeth contact analysis method.

Analysis of pulse-to-pulse fluctuation in underwater Laser-Induced Breakdown Spectroscopy on the basis of error propagation calculation

We study the pulse-to-pulse variation of the emission spectral intensity of underwater laser-induced breakdown spectroscopy. Emission spectral intensity and its dispersion were measured as a function of the fluence of the laser pulse at a metal target surface immersed in water. The coefficient of variation, which is an index of the dispersion, showed a minimum at a certain fluence. The dispersion at the low fluences was attributed to the variations of the population density and the atomic excitation temperature, according to the error propagation analysis of the theoretical spectral line intensity based on the Boltzmann distribution. The population density and the temperature showed a negative correlation, which is consistently explained by the unstable division of pulse energy into two parts, i.e., the early part of a pulse is attributed to materials ablation and hence to the population density, while the other part to plasma heating and hence to the temperature.

Literary Historiography as Event: Mihai Iovănel’s History of Contemporary Romanian Literature: 1990-2020

In his essay, Moraru contends that Mihai Iovănel’s 2021 History of Contemporary Romanian Literature: 1990-2020 is a breakthrough in Romanian literary historiography and criticism overall. According to Moraru, the History revisits radically the terms of the Romantic contract that, in Romania and elsewhere, has typically been underwriting modern criticism. A form of critical realism and an exemplar of postmillennial Romanian literary and cultural studies, Iovănel’s book is, in Moraru’s view, not only provocative but also effectively transformative. To gauge the scope and nature of the changes advocated and enacted in the History, this article examines how Iovănel has put together what he calls the “system” of contemporary Romanian literature. Thus, Moraru is less concerned with which writers are included in the book and which are left out, seeking, instead, answers to a series of questions concerning primarily Iovănel’s cultural-materialist and transnational studies-informed methodology. Along the same theoretical, historical, and political lines, Moraru discusses the project’s makeup as well as the strength of the case the History makes for the need to have another look at a range of pre- and post-1990 literary movements, directions, styles, and authors, principally at postmodernism and its competition and successors in the twenty-first century.

Hydrodynamic disk solutions for Be stars using HDUST

Abstract. In this work, we implemented a hydrodynamical solution for fast rotating stars, which leaves high values of mass-loss rates and low terminal velocities of the wind. This 1D density distribution adopts a viscosity mimicking parameter which simulates a quasi-Keplerian motion. Then, it is converted to a volumetric density considering vertical hydrostatic equilibrium using a power-law scale height, as usual in viscous decretion disk models. We calculate the theoretical hydrogen emission lines and the spectral energy distribution utilizing the radiative transfer code HDUST. Our disk-wind structures are in agreement with viscous decretions disk models.

Water vapor absorption in the region of the oxygen A-band near 760 nm

The oxygen A-band near 760 nm is used to determine the air-mass along the line of sight from ground or space borne atmospheric spectra. This band is located in a spectral region of very weak absorption of water vapor. The increased requirements on the determination of the air columns make suitable to accurately characterize water absorption spectrum in the region. In the present work, we use a cavity ring down spectrometer newly developed in Tomsk, to measure with unprecedented sensitivity and accuracy the water spectrum in the 12969 - 13172 cm−1 region. While about fifty transitions were previously detected in the region, a total of about 580 water lines are measured by CRDS and rovibrationally assigned, leading to the determination of 103 new levels and correction of 134 levels of H216O. Spectroscopic line lists available in the region (HITRAN, W2020 and theoretical line lists) show some important deviations compared to observations. In particular, line intensities are poorly predicted by available ab initio calculations for transitions involving a highly bending excitation.

Research on application of focal mechanism and site conditions in judgment of Hebei earthquake influence field

The determination of seismic influence field in post-earthquake work, a quickly gived reasonable map of seismic intensity distribution, was an important basis for emergency rescue after the earthquake and was important for the government to understand the disaster situation, deploy work and estimate the disaster loss. In this paper, the isoseismal maps of moderate strong earthquakes in Hebei Province were collected and sorted out, it was compared with the theoretical isotherm map generated by the regional earthquake intensity attenuation relationship based on the focal mechanism solution. The results show that, with the increase of magnitude, the similarity was higher between the theoretical isoseismal map and the actual isoseismal map in the high intensity area （≥Ⅶ）, the theoretical isoseismal map was calculated by the attenuation relationship of seismic intensity with focal mechanism solution. In addition, according to the spatial variation of aftershock frequency within 24 hours after the earthquake, the theoretical isoseismal line in the polar region is modified, which is more consistent with the actual isoseismal line. That is to say, the theoretical calculated intensity is closer to the actual investigation intensity value. Finally, the grid of Hebei area was divided, and the bedrock PGA of the earthquake case on each grid center point was calculated according to the attenuation relationship of ground motion. Then, the site category attributes were extracted, considered site amplification factor, and the conversion of bedrock PGA to surface PGA was completed. The surface PGA was converted into intensity and compared with the actual earthquake isoseismal map. The results show that the similarity between the seismic influence field calculated by considering the site amplification effect and the actual isoseismal line was very high in the high intensity area, and the similarity is higher than the intensity attenuation relation method based on the focal mechanism solution.

The Trustworthiness of Voice Assistants in the Context of Healthcare Investigating the Effect of Perceived Expertise on the Trustworthiness of Voice Assistants, Providers, Data Receivers, and Automatic Speech Recognition

As an emerging market for voice assistants (VA), the healthcare sector imposes increasing requirements on the users’ trust in the technological system. To encourage patients to reveal sensitive data requires patients to trust in the technological counterpart. In an experimental laboratory study, participants were presented a VA, which was introduced as either a “specialist” or a “generalist” tool for sexual health. In both conditions, the VA asked the exact same health-related questions. Afterwards, participants assessed the trustworthiness of the tool and further source layers (provider, platform provider, automatic speech recognition in general, data receiver) and reported individual characteristics (disposition to trust and disclose sexual information). Results revealed that perceiving the VA as a specialist resulted in higher trustworthiness of the VA and of the provider, the platform provider and automatic speech recognition in general. Furthermore, the provider’s trustworthiness affected the perceived trustworthiness of the VA. Presenting both a theoretical line of reasoning and empirical data, the study points out the importance of the users’ perspective on the assistant. In sum, this paper argues for further analyses of trustworthiness in voice-based systems and its effects on the usage behavior as well as the impact on responsible design of future technology.