Rough Form Research Articles

Kinematics and Evolution of the Southern Eastern California Shear Zone, Based on Analysis of Fault Strike, Distribution, Activity, Roughness, and Secondary Deformation

AbstractThe Eastern California shear zone is a complex set of dextral faults that accommodates significant plate motion and has produced large earthquakes. The evolution of this system and why it consists of closely spaced, irregular faults that fail in multi‐fault ruptures are not well understood. Here we analyze the geometry, spatial distribution, and Quaternary slip activity of right‐lateral faults in the southern Mojave block. We find these faults are oriented favorably for accommodating regional dextral plate motion and do not show evidence of replacement following counterclockwise rotation to unfavorable positions, although activity may be migrating westward as previously proposed. We also confirm that the shear zone is transpressive, with widespread restraining bends, distributed convergent deformation, and significant impact on near‐fault topography. Observations also show that faults are geometrically complex, as represented by along‐strike variability in fault strike. We document a correlation between strike variability and fault activity (slip rate or net slip), which is evident within the shear zone as well as for a control group of other faults. We suggest that strike variability represents a form of geometric roughness, which may inhibit fault slip and result in complex ruptures, slip‐strengthening behavior, and a prevalence of off‐fault deformation. Other factors, including preexisting crustal fabric, edge effects, and changes in the stress field, may further complicate kinematics. These results suggest that faults of the shear zone are still juvenile and somewhat unique, yet offer an important window into how broadly distributed shear may evolve into a through‐going continental transform system.

Fabrication of Bio-Nanocomposite Based on HNT-Methionine for Controlled Release of Phenytoin.

In this study, a novel promising approach for the fabrication of Halloysite nanotube (HNT) nanocomposites, based on the amino acid named Methionine (Met), was investigated. For this purpose, Met layered on the outer silane functionalized surface of HNT for controlled release of Phenytoin sodium (PHT). The resulting nanocomposite (MNT-g-Met) was characterized by FTIR, XRD, Zeta potential, TGA, TEM and FE-SEM. The FT-IR results showed APTES and Met peaks, which proved the modification of the HNTs. The zeta-potential results showed the interaction between APTES (+53.30) and Met (+38.80) on the HNTs (−30.92). The FE-SEM micrographs have displayed the grafting of Met on the modified HNTs due to the nanotube conversion to a rough and indistinguishable form. The amount of encapsulation efficiency (EE) and loading efficiency (LE) of MNT-g-Met was 74.48% and 37.24%, while pure HNT was 57.5%, and 28.75%, respectively. In-vitro studies showed that HNT had a burst release (70% in 6 h) in phosphate buffer while MNT-g-Met has more controlled release profile (30.05 in 6 h) and it was found to be fitted with the Korsmeyer-Peppas model. Due to the loading efficiency and controlled release profile, the nanocomposite promote a good potential for drug delivery of PHT.

Reduction-based engineering of three-dimensional morphology of Ni-rGO nanocomposite

Relying on the reduction of oxygenated functional groups of graphene oxide, the engineering of the morphology of Ni-based reduced graphene oxide (Ni-rGO) nanocomposite was carried out via galvanostatic electrochemical co-deposition by changing the current density in a range of 0.001–0.01 A.cm−2 and loading of 2 g.L−1 of graphene oxide. The morphology has been converted to a porous, rough, and three-dimensional (3D) form by significant incorporation and simultaneous reduction of GO into the structure of Ni-rGO nanocomposite film. Study on 3D morphology by SEM, FT-IR, XRD, and Raman confocal spectroscopy approved simultaneously reduction of oxygenated functional groups. Moreover, we have discussed the impact of rGO incorporated in the structure of Ni-rGO nanocomposite onto the creation of porous 3D-morphology and the enhancement of the electroactive specific surface. This new fascinating mechanism and structure can lead to the enhancement of electroactive components in electrochemical sensors and energy conversion-storage systems.

Why study turn‐taking sequences in interspecies interactions?

AbstractThe “turn‐taking” system, a notion referring to the dynamics of verbal exchanges in face‐to‐face interaction, is often presented as the hallmark of human language (Levinson, 2016). However, recent works have investigated turn‐taking mechanisms in several nonhuman taxa, thus referring to the moment‐by‐moment coordinated alternation of actions or vocalizations, for instance in primates or birds. These findings have been interpreted as evidence of elementary forms of sequence organization in the animal world, and therefore as evidences of an evolutionary pathway, leading from very rough forms of signal alternation, to the complex multimodal and conversational turn‐taking system used by humans. This article first reviews and discusses these findings. It then makes the case for going beyond the study of uniquelyintra‐specific forms of communication and interaction. It argues that considering interspecies interaction is of interest for social sciences in general, and linguistics scholarship in particular, at least in two respects. First, on an empirical level, to investigate a widespread phenomenon, namely ordinary human‐animal interactions, as it occurs mostly in domestic settings—a topic that has been relatively neglected in the study of social interaction so far (for a range of reasons that we shall touch on). Secondly, on a more speculative level, it assumes that ordinary interspecies interactions, especially as they unfold with domestic pets or wild animals in natural settings (vs. in experimental settings), are a valuable locus to explore rudimentary forms of sequence organization, that are neither governed by linguistic and cultural norms, nor entirely the product of stereotypical species‐related behavioral patterns. We posit that fundamental principles of sociality are to be found in the contextual adjustments of multimodal actions and in the emergence of meaning in interspecies interactions.

Effects of Tactile Textures on Preference in Visuo-Tactile Exploration

The use of haptic technologies has recently become immensely essential in Human-Computer Interaction to improve user experience and performance. With the introduction of tactile feedback on a touchscreen device, commonly known as surface haptics, several applications and interaction paradigms have become a reality. However, the effects of tactile feedback on the preference of 2D images in visuo-tactile exploration task on touchscreen devices remain largely unknown. In this study, we investigated differences of preference score (the tendency of participants to like/dislike a 2D image based on its visual and tactile properties), reach time, interaction time, and response time under four conditions of feedback: no tactile feedback, high-quality of tactile information (sharp tactile texture), low-quality of tactile information (blurred tactile texture), and incorrect tactile information (mismatch tactile texture). The tactile feedback is rendered in the form of roughness that is simulated by modulating the friction between the finger and the surface and is derived from the 2D image. Thirty-six participants completed visuo-tactile exploration tasks for a total of 36 trials (3 2D images × 4 tactile textures × 3 repetitions). Results showed that the presence of tactile feedback enhanced users’ preference (tactile feedback conditions were rated significantly higher than the no tactile feedback condition for preference regardless of the quality/correctness of tactile feedback). This finding is also supported through results from self-reporting where 88.89% of participants preferred to experience the 2D image with tactile feedback. Additionally, the presence of tactile feedback resulted in significantly larger interaction time and response time compared to the no tactile feedback condition. Furthermore, the quality and correctness of tactile information significantly impacted the preference rating (sharp tactile textures were rated statistically higher than blurred tactile and mismatched tactile textures). All of these findings demonstrate that tactile feedback plays a crucial role in users’ preference and thus motivates further the development of surface haptic technologies.

Human Beings Among the Beasts

AbstractIn this article, we develop and defend a new argument for animalism – the thesis that we human persons are human animals. The argument takes this rough form: since our pets are animals, we are too. We'll begin with remarks on animalism and its rivals, develop our main argument, and then defend it against a few replies.

Comprehensive topography characterization of polycrystalline diamond coatings

The surface topography of diamond coatings strongly affects surface properties such as adhesion, friction, wear, and biocompatibility. However, the understanding of multi-scale topography, and its effect on properties, has been hindered by conventional measurement methods, which capture only a single length scale. Here, four different polycrystalline diamond coatings are characterized using transmission electron microscopy to assess the roughness down to the sub-nanometer scale. Then these measurements are combined, using the power spectral density (PSD), with conventional methods (stylus profilometry and atomic force microscopy) to characterize all scales of topography. The results demonstrate the critical importance of measuring topography across all length scales, especially because their PSDs cross over one another, such that a surface that is rougher at a larger scale may be smoother at a smaller scale and vice versa. Furthermore, these measurements reveal the connection between multi-scale topography and grain size, with characteristic scaling behavior at and slightly below the mean grain size, and self-affine fractal-like roughness at other length scales. At small (subgrain) scales, unpolished surfaces exhibit a common form of residual roughness that is self-affine in nature but difficult to detect with conventional methods. This approach of capturing topography from the atomic- to the macro-scale is termed comprehensive topography characterization, and all of the topography data from these surfaces has been made available for further analysis by experimentalists and theoreticians. Scientifically, this investigation has identified four characteristic regions of topography scaling in polycrystalline diamond materials.

Experience of Primary School Teachers With Inclusion Students in the Context of Teaching Mathematics: A Case Study

This study investigated experiences of primary school teachers with inclusion students in the context of teaching mathematics. In the study the phenomenology design, which is one of the qualitative research designs, was used. The participants were determined by criterion-based sampling method. The participants of the study consisted of 21 primary school teachers with inclusion students. Research data were collected by a semi-structured interview form developed by the researchers. Content analysis method was used for data analysis. The study found that the participants mostly used rough evaluation forms in order to determine the gains when preparing IEP. In addition, most of the participants stated that they needed help in preparing IEP and they received the most of the help from school counselors. The participants stated that they mostly used demonstration, teaching with play and drama methods and that they could practice with inclusion students only during breaks, during social activities times or in the hours in the support training room apart from mathematic class. Moreover, it was found that most of the participants measured verbally gains of the inclusion students by question and answer method. It was also concluded that inadequacy of the time was the most common problem they encountered in the process of learning-teaching and assessment for the mathematics class.

Experience of Primary School Teachers With Inclusion Students in the Context of Teaching Mathematics: A Case Study

This study investigated experiences of primary school teachers with inclusion students in the context of teaching mathematics. In the study the phenomenology design, which is one of the qualitative research designs, was used. The participants were determined by criterion-based sampling method. The participants of the study consisted of 21 primary school teachers with inclusion students. Research data were collected by a semi-structured interview form developed by the researchers. Content analysis method was used for data analysis. The study found that the participants mostly used rough evaluation forms in order to determine the gains when preparing IEP. In addition, most of the participants stated that they needed help in preparing IEP and they received the most of the help from school counselors. The participants stated that they mostly used demonstration, teaching with play and drama methods and that they could practice with inclusion students only during breaks, during social activities times or in the hours in the support training room apart from mathematic class. Moreover, it was found that most of the participants measured verbally gains of the inclusion students by question and answer method. It was also concluded that inadequacy of the time was the most common problem they encountered in the process of learning-teaching and assessment for the mathematics class.

Soil Moisture Retrieval during the Wheat Growth Cycle Using SAR and Optical Satellite Data

The objective of this paper is to propose a combined approach for the high-precision mapping of soil moisture during the wheat growth cycle based on synthetic aperture radar (SAR) (Radarsat-2) and optical satellite data (Landsat-8). For this purpose, the influence of vegetation was removed from the total backscatter by using the modified water cloud model (MWCM), which takes the vegetation fraction (fveg) into account. The VV/VH polarization radar backscattering coefficients database was established by a numerical simulation based on the advanced integrated equation model (AIEM) and the cross-polarized ratio of the Oh model. Then the empirical relationship between the bare soil backscattering coefficient and both the soil moisture and the surface roughness was developed by regression analysis. The surface roughness in this paper was described by using the effective roughness parameter and the combined roughness form. The experimental results revealed that using effective roughness as the model input instead of in-situ measured roughness can obtain soil moisture with high accuracy and effectively avoid the uncertainty of roughness measurement. The accuracy of soil moisture inversion could be improved by introducing vegetation fraction on the basis of the water cloud model (WCM). There was a good correlation between the estimated soil moisture and the observed values, with a root mean square error (RMSE) of about 4.14% and the coefficient of determination (R2) about 0.7390.

Modification of Takari natural sand based silica with BSA (SiO<sub>2</sub>@BSA) for biogenic amines compound adsorbent

<abstract> <p>The modification of Takari natural sand‑based silica with bovine serum albumin/BSA (SiO<sub>2</sub>@BSA) as an adsorbent for biogenic amines compounds has been successfully synthesized. The SiO<sub>2</sub>@BSA was synthesized by using the batch method, then was characterized by using FTIR and SEM. Here, A typical BSA group was identified with the new formed namely C–N and C–H, and N–H. The SEM image shows the surface morphology in granular, non‑uniform, rough, and agglomerated forms. Several parameters such as adsorbent dosages, pH, and contact time, shows this material was optimum for adsorption of BSA at pH 5 with adsorbent dosages is 0.1 g during 80 min of contact time. The mechanism adsorption of BSA in this material was found out by using six kinetics modeling, and thermodynamic studies. Here, the adsorption of BSA was fitted with pseudo‑second‑order kinetics. Furthermore, the thermodynamic studies show that adsorption of BSA is spontaneously and follows chemical adsorption.</p> </abstract>

Средневековые надгробные памятники степного Крыма

There are late eighteenth-century maps of the town of Eski-Krym (Solkhat, Krym, Staryi Krym) which Muslim commune shaped by the last third of the thirteenth century showing a number of significant architectural objects and gravestones with stone-carved decorations. The system of Muslim gravestones developed by O.-N. A. Akchokrakly and A. S. Bashkirov is based on the study of forms and the location of ornamental and epigraphic parts of monuments from the cemeteries of Staryi Krym. Carved decorations of medieval grave monuments of Solkhat show by the high artistic level of carving, the quality of technical execution, and original ornamentation. Their connection of stone carving of the Crimea in the Golden Horde Period with the Asia Minor appeared simultaneously with the development of Muslim architecture. Photographs and drawings made by an academic expedition in 1925 that surveyed ancient Tatar settlements and cemeteries in the Crimean steppe (its western areas close to Yevpatoria, as well as the north of the Crimean Peninsula and its east close to the town of Staryi Krym) show a wide range of gravestones, mostly of geometrical forms like pillars topped with turbans. There is a small group of grave monuments, or the so-called two-horned gravestones, representing a rough form of similar tombstones originating from the Muslim cemeteries of Solkhat as the capital of the Crimea in the Golden Horde Period and other large settlements, such as Eski-Iurt. The two-horned gravestones from the cemeteries of large settlements present elaborate forms and inscriptions; they are covered with ornaments featuring the Seljuk style of the Asia Minor. The two-horned gravestones from the cemeteries in the steppe have a high base, with their pillars following the shape of vertical

Features of the Morphology and Structure of Thin Silicon Films

Abstract—The surface morphology and structure of LPCVD silicon thin films (with thicknesses of 40 nm or less) obtained at a deposition temperature of T = 550°С, at which amorphous films (a-Si) are usually obtained, and at a deposition temperature of 584°С, at which films of polycrystalline silicon with hemispherical grains (HSG-Si) with a large surface roughness are obtained, are studied. It is found that, at a deposition temperature of 550°С, amorphous films with comparatively smooth surfaces form in the case of thicknesses of 35 nm or more, and granular polycrystalline HSG-Si films with a large surface roughness form in the case of thicknesses of 35 nm or less. It is shown that granular silicon films deposited at T = 550°С (d = 28 nm) have a morphology that is analogous to that of HSG-Si films deposited at T = 584°С (d = 29 nm). It is found that, as the thickness of the deposited Si film decreases to 28 nm, the lower boundary of the temperature range at which HSG-Si films form is shifted toward smaller temperatures to T = 550°C.

Role of an additional interfacial spin-transfer torque for current-driven skyrmion dynamics in chiral magnetic layers

Skyrmions can be driven by spin-orbit torques as a result of the spin Hall effect. Here we model an additional contribution in ultra-thin multilayers, arising from the spin accumulation at heavy metal / ferromagnetic interfaces and observe the effects on a large range of skyrmion diameters. The combination of the interfacial spin-transfer torque and the spin-orbit torque results in skyrmion motion which helps to explain the observation of small skyrmion Hall angles for skyrmion diameters less than 100 nm. We show that this additional term has a significant effect on the skyrmion dynamics and leads to rapidly decreasing skyrmion Hall angles for small skyrmion diameters, as well as a skyrmion Hall angle versus skyrmion velocity dependence nearly independent of the surface roughness characteristics. Also, the effect of various disordered energy landscapes, in the form of surface roughness, on the skyrmion Hall angle and velocity is shown to be largely drive-dependent. Our results show good agreement with those found in experiments thus concluding that the interfacial spin-transfer torque should be included in micromagnetics simulations for the reproduction of experimental results.

기상측정을 통한 DED 출력물의 유연 후가공

The directed energy deposition (DED) process has been used for enhancement of the mechanical property, repair, and part manufacturing. Post-process machining is required due to the low quality of the DED printed part. Even if the part is printed under similar conditions, dimensional variations occur frequently due to the accumulation of small printing errors. Due to tool overfeeding and the occurrence of the non-cutting area due to this variation, the quality of the finished part is not guaranteed. Therefore, the post-process machining should be carried out considering the actual printed part shape. Herein, the flexible post-process machining is proposed by utilizing the shape information through the on-machine measurement (OMM) of DED printed parts. The process margin for machining the design shape is calculated through the OMM of the geometric dimension of the printed part. Feedrate (Override) and machining path of each printing parts are flexibly determined depending on the process margin. This technique is applied to the pocket shape part printed with STS 316L material, and the rough and finish machining conditions are established. Rough machining time was reduced by adjusting the feedrate flexibly. The final form of accuracy and surface roughness were achieved under 30 and 0.25 μm, respectively.

Изучение особенностей репродукции форм березы повислой по типу коры в условиях северной подзоны тайги

Статья посвящена сравнению биометрических показателей генеративной сферы и качества семенного материала у форм березы повислой с разными типами трещиноватости коры (гладкокорая, ромбовидно-трещиноватая, грубокорая). Исследования проводили в течение трех лет в северной подзоне тайги. Выявлены и статистически обоснованы различия между выделенными формами. The article compares the isolated forms of birch by the type of crust cracking according to the generative sphere and the quality of seed material for three years of observations in the conditions of the northern taiga sub-zone (Arkhangelsk). The essence of the problem is that at the moment, in the conditions of the northern subzone of the taiga, no research was carried out to study the form diversity of birch cough. At the same time, birch is becoming a breed increasingly of interest to foresters in terms of rapid production of quality wood [1, 2]. Knowledge of growth characteristics and generative indicators of breed morphotypes is necessary for the development of strategies to increase the productivity of plantations [3]. The main part describes the importance of birch and the necessity of its selection study, justifies the purpose of this work. The article provides statistical evidence of comparison of the size of earrings and seeds, differences in the quality of seed material and an analysis of the characteristics of the reproductive sphere of the different birch morph by the type of crust fracturing. The authors conclude that there are differences between the isolated forms of birch cough not only in the external data of the bark, but also in the indicators of the generative sphere (the size of earrings, seeds). The evidence between pairs of reproductive signs is 61.7 % according to data for certain years of reproduction, 66.7 % - according to average values for three years, which is higher than for vegetative signs (53 %). The largest differences (40–44 % of paired differences) in the size of earrings and seeds exist between the smoothcore and rough forms of birch. The rhomboid-fractured shape occupies an intermediate position, but is closer to the rough shape of the birch. Generally, the size advantage of earrings and seeds has a smooth-edged birch shape. In the conditions of the sub-season of the northern taiga birch gives a crop of seeds with high germination (up to 70 %). Quality indices of seeds are not genetically related to forms of birch according to the type of crust cracking, and are determined by weather conditions during aging.

Estimation of Reachable Sets from Above with Respect to Inclusion for Some Nonlinear Control Systems

The study of reachable sets of controlled objects is an important research area in optimal control theory. Such sets describe in a rough form the dynamical possibilities of the objects, which is important for theory and applications. Many optimization problems for controlled objects use the reachable set $$D(T)$$ in their statements. In the study of properties of controlled objects, it is useful to have some constructive estimates of $$D(T)$$ from above with respect to inclusion. In particular, such estimates are helpful for the approximate calculation of $$D(T)$$ by the pixel method. In this paper, we consider two nonlinear models of direct regulation known in the theory of absolute stability with a control term added to the right-hand side of the corresponding system of differential equations. To obtain the required upper estimates with respect to inclusion, we use Lyapunov functions from the theory of absolute stability. Note that the upper estimates for $$D(T)$$ are obtained in the form of balls in the phase space centered at the origin.

Identification of Opaque Sulfide Inclusions in Rubies from Mogok, Myanmar and Montepuez, Mozambique

The red variety of corundum owes its color and strong fluorescence to the presence of Cr, as well as traces of Fe. The latter can reduce the fluorescence and thus impact the appearance of the final gem. Gem quality rubies are rarely available for scientific study and even less common in their rough form. Opaque inclusions in rubies are often removed during faceting and remain unidentified. This study aims to identify opaque inclusions in rubies from the two most common origins seen in the high end market today: Mogok, Myanmar and Montepuez, Mozambique. Using electron probe microanalaysis (EPMA) the inclusions were identified as sphalerite and pyrrhotite in Mogok rubies. The paragenesis of Myanmar, marble-related rubies is fairly well understood and no Fe-rich minerals apart from sulfides have been identified. Opaque inclusions in Mozambican rubies are a complex mix of Fe-Cu-Ni sulfides with exsolution textures. These inclusions are interpreted to be small amounts of sulfide melt trapped during corundum formation. The different sulfide phases crystallized from this entrapped melt and some phases experienced later exsolution during cooling. The formation of amphibole-related, Mozambican rubies is not well understood, but it is obvious that very different processes are at work compared to the marble-related Myanmar ruby deposits.

Influence of Site Conditions and Quality of Birch Wood on Its Properties and Utilization after Heat Treatment. Part II—Surface Properties and Marketing Evaluation of the Effect of the Treatment on Final Usage of Such Wood

This work is a follow-up contribution to the characteristics of Betula pendula (silver birch) wood from different habitats and the impact of the subsequent heat treatment. Specifically, it focuses on the surface properties of birch wood in the form of veneers, namely color, hardness, roughness and wetting, and in particular on the marketing evaluation of the attractiveness of colored birch wood and, thus, its possible use in practice in the Czech Republic. Three heat treatment steps at 170, 190 and 200 °C were used. The resulting values of the properties of the treated birch veneers were compared with the untreated reference veneers and also with beech veneers. These properties were the wood density, the colorimetric parameters, the roughness parameters, the wetting parameters, the hardness and density, and none of the parameters studied showed negative changes due to the temperature adjustment. Overall, both in terms of properties and in terms of marketing appraisal, there is the potential for birch to replace, for example, beech, especially in the furniture industry, by application in the form of heat-treated veneers after suitable heat treatment. The conclusions of the marketing analysis resulting from the questionnaire survey conducted on a sample of respondents show the significant preference for the heat-treated birch wood compared to reference birch samples without heat treatment.

Pendekatan induktif untuk meningkatkan kemampuan guru dalam pembelajaran matematika sekolah dasar

<p>Abstract. The purpose of writing this article is to describe: developing models and formulating rough forms of design models of inductive approaches to learning mathematics for elementary school (SD) teachers whose backgrounds are not from mathematics or mathematics education. The research partners are Mutiara Persada Elementary School teachers, Kasihan Subdistrict, Bantul Regency. The research approach is mixed qualitative and quantitative with the type of research and development. Data collection techniques for first year research are using:<br />questionnaires, interviews, and documentation. The development model used is the ADDIE model by Dick & Carry (1996). The results of the study, namely: (1) maximizing mathematical understanding needs to pay attention to Piaget's learning theory, (2) the mistakes made by the teacher are how to make the relationship between symbols and procedures and the availability of appropriate references, linking symbolic procedures with informal problem solving, and connecting between symbol system, (3) inductive message processing, i.e., it starts with facts or special events which are then related to the previous material (prerequisite material), conceptualization based on facts that are in accordance with reasoning and the results of empirical case development, and compilation of generalizations based on concepts concepts, and (4) the construction of a crude model of mathematics learning with an inductive approach, the stages of which are:decomposition of the problem; determination of prerequisite material;<br />fixing the facts of the problem; motor, affective, and cognitive domain integration activities; reasoning process; evaluation of the reasoning process; empirical case development; concept formulation; and evaluation of learning.<br />Keywords: Inductive Approach, Teacher's Ability, Mathematics Learning</p>