Genetic Algorithm Based Temperature-Queuing Method for Aggregated IAC Load Control

In recent years, demand response (DR) has played an increasingly important role in maintaining the safety, stability and economic operation of power grid. Due to the continuous running state and extremely fast speed of response, the aggregated inverter air conditioning (IAC) load is considered as the latest and most ideal object for DR. However, it is easy to cause load rebound when the aggregated IAC load participates in DR. Existing methods for controlling air conditioners to participate in DR cannot meet the following three requirements at the same time: basic DR target, load rebound suppression, and users’ comfort. Therefore, this paper has proposed a genetic algorithm based temperature-queuing control method for aggregated IAC load control, which could suppress load rebound under the premise of ensuring the DR target and take users’ comfort into account. Firstly, the model of the aggregated IAC load is established by the Monte Carlo method. Then the start and end time of DR are selected as the main solution variables. A genetic algorithm is used as the solving tool. The simulation results show that the proposed strategy shows better performance in suppressing load rebound. In the specific application scenario of adjusting the frequency fluctuation of the microgrid, the results of the case show that this strategy can effectively control the frequency fluctuation of the microgrid. The effectiveness of the strategy is verified.

Indigenous Knowledge-Based Education in Sanggar Alam (Salam) Yogyakarta, Indonesia

This study explored the practices of indigenous knowledge-based education. This issue is important to examine because the effects of liberalization and globalization have changed the policy framework of the education sector. This study used qualitative methods with a case study approach. Snowball sampling was used to recruit participants, and data were collected through interviews, observations, and document analysis to understand the educational practices at Sanggar Alam (Salam) Yogyakarta, Indonesia. Salam was an ideal object of research because it has an unusual model of education, on an environmental and cultural basis. Data were interpretated based on the approach of Creswell in order to capture the natural setting. The method of Yin (2003) was applied to verify the data validity. The results of this study indicated that: 1) Salam has an unusual learning model which refers to the education principle initiated by Ki Hadjar Dewantara, that education is to liberate; this is reflected in the teacher’s role as facilitator, and in the learning process which maximizes the environment; and 2) Salam education is built by adopting research-based learning to eliminate irrelevant traditional learning models. These findings indicate that Salam has applied the principles of indigenous knowledge-based education in a concrete way, to guide students to grow without losing their roots. Keywords: freedom education; indigenous based education; Ki Hadjar Dewantara; Sanggar Alam (Salam)

Modified transmission eigenvalues for inverse scattering in a fluid–solid interaction problem

Target signatures are discrete quantities computed from measured scattering data that could potentially be used to classify scatterers or give information about possible defects in the scatterer compared to an ideal object. Here, we study a class of modified interior transmission eigenvalues that are intended to provide target signatures for an inverse fluid–solid interaction problem. The modification is based on an auxiliary problem parametrized by an artificial diffusivity constant. This constant may be chosen strictly positive, or strictly negative. For both choices, we characterize the modified interior transmission eigenvalues by means of a suitable operator so that we can determine their location in the complex plane. Moreover, for the negative sign choice, we also show the existence and discreteness of these eigenvalues. Finally, no matter the choice of the sign, we analyze the approximation of the eigenvalues from far field measurements of the scattered fluid pressure and provide numerical results which show that, even with noisy data, some of the eigenvalues can be determined from far field data.

Medical Humanism or Scientia Sexualis? Building a Sexological Concept in Fécondité

This article argues that Zola's late novel Fécondité, while on the surface a transparently didactic roman à thèse articulating populationist concerns, is in fact at the same time a roman de mœurs implicated genealogically in a broader range of issues than pro-natalist ethics and various behavioural and therapeutic bêtes noires, containing identifiable traces of other contemporary pathological concerns, contingently marshalled for pro-natalist ends. Exploiting the terminological flexibility of what Peter Cryle and Alison Moore have referred to as a long-established ‘constellation of themes’ constituted by ‘impotence, frigidity and sterility’, Fécondité participates in the fin-de-siècle production of a key sexological concept. It does so through relentless deployment of the malleable motif of female sexual coldness – a signifier of pathological conditions named in contemporary medical and pseudo-medical literature as ‘frigidité’, ‘froideur’, and so on – and its polyvalent application to distinct pathologies manifesting in a variety of its female characters, in particular inabilities to desire, to conceive, and, significantly, to climax. Zola's novel appears at a moment where women's sexual pleasure was becoming normalised, to the extent that its absence now counted as a pathological disorder; Fécondité deploys tropes of coldness – consequential upon anti-reproductive practices – to suggest that it is attempted disruption of the natural reproductive order that ensures such disordered absence. Ultimately, while Fécondité is readable as didactic expression of a ‘humanitarian’ natalist ethics and representation of doctor-patient encounters, treatment, experience of illness and other ‘medical humanities’ concerns, it is however important not to overlook this representation's discursive contingencies, particularly the coalescence of sexological and populationist concerns at a moment when both were of considerable significance. Fécondité in this sense straddles two major fin-de-siècle discursive economies, offering an ideal object for a critical medical humanities valuing the pathological as well as the pathographical.

Method for preserving the viability of a chicken embryo with a shell defect in experiment

The egg has always been and remains an ideal object for conducting various scientific research. An egg is an isolated egg cell outside the mother’s body. Therefore, it is an ideal object for studying embryogenesis and performing various manipulations during embryogenesis and before the birth of a viable organism. The existing methods allow conducting experimental manipulations with the embryo in situ, inside the egg shells without damaging them. However, the achievement of ideal parameters for closing the defect of the fertilized egg shell in the experiment is the key to the successful completion of the experiment. Periods of embryogenesis, especially at the last stage, when osteogenesis occurs, require the presence of a sufficient amount of calcium ions in the metabolism of the developing chicken, which are vital for the formation of a full-fledged chicken.The aim: to develop an optimal method for closing the defect and fixing the egg shell after manipulation or during the experiment.Materials and methods. The experiment was carried out on fertile eggs of the breed of chickens – meat breed of broilers Ross-308 (ROSS-308), JSC Poultry Farm “NovoBaryshevskaya” (Koltsovo, Novosibirsk Region, Russian Federation). In the experiment, 120 fertilized eggs were used. Eggs weighing 60–70 g were incubated at a temperature of 37.5–38.0 °C and 50–55 % humidity. Comparative anatomical and physiological parameters were evaluated on the 7th, 14th, 20th day of incubation and on the 1st day of the postnatal period. In the experimental group, the shell defect was covered with a fragment of the egg shell of the donor. Incubation was carried out in an incubator – a household incubator “Nesushka” (Novosibirsk, Russian Federation).Results. The proposed method of fixing and closing the defect of the fertilized egg shell excludes the use of foreign materials that have an adverse effect on the development of the embryo. There were no anatomical and physiological deviations in the chicks of the study group when comparing the indicators with the parameters in the comparison group and the Hamburger – Hamilton classification.

Finite field and group algorithms for orthogonal sequence search

Introduction: Hadamard matrices consisting of elements 1 and –1 are an ideal object for a visual application of finite dimensional mathematics operating with a finite number of addresses for –1 elements. The notation systems of abstract algebra methods, in contrast to the conventional matrix algebra, have been changing intensively, without being widely spread, leading to the necessity to revise and systematize the accumulated experience. Purpose: To describe the algorithms of finite fields and groups in a uniform notation in order to facilitate the perception of the extensive knowledge necessary for finding orthogonal and suborthogonal sequences. Results: Formulas have been proposed for calculating relatively unknown algorithms (or their versions) developed by Scarpis, Singer, Szekeres, Goethal — Seidel, and Noboru Ito, as well as polynomial equations used to prove the theorems about the existence of finite-dimensional solutions. This replenished the significant lack of information both in the domestic literature (most of these issues are published here for the first time) and abroad. Practical relevance: Orthogonal sequences and methods for their effective finding via the theory of finite fields and groups are of direct practical importance for noise-immune coding, compression and masking of video data.

Space as Sociocultural Construct: Reinterpreting the Traditional Residences in Jinqu Basin, China from the Perspective of Space Syntax

The traditional residence with protogenetic spatial arrangement is regarded as a critical carrier of social logic of space, which makes it an ideal object for studying the relationship between the spatial form and social context. To this end, a comparative analysis is conducted using Depthmap Software. This study is based on space syntax theory between two groups of proxies of sharp differences in spatial organization in one geomorphic unit where the natural factors show little variations, while the human factors present a bifurcating distribution. Furthermore, the study clarifies the differences among genotypes of the domestic space system. Finally, combined with historical material, it proves the dual division of regional sociocultural factors as decisive forces shaping the traditional living space and its constructed manifestations.

A Comparative Analysis of Arabic Text Steganography

Protecting sensitive information transmitted via public channels is a significant issue faced by governments, militaries, organizations, and individuals. Steganography protects the secret information by concealing it in a transferred object such as video, audio, image, text, network, or DNA. As text uses low bandwidth, it is commonly used by Internet users in their daily activities, resulting a vast amount of text messages sent daily as social media posts and documents. Accordingly, text is the ideal object to be used in steganography, since hiding a secret message in a text makes it difficult for the attacker to detect the hidden message among the massive text content on the Internet. Language’s characteristics are utilized in text steganography. Despite the richness of the Arabic language in linguistic characteristics, only a few studies have been conducted in Arabic text steganography. To draw further attention to Arabic text steganography prospects, this paper reviews the classifications of these methods from its inception. For analysis, this paper presents a comprehensive study based on the key evaluation criteria (i.e., capacity, invisibility, robustness, and security). It opens new areas for further research based on the trends in this field.

Syntactic Networks of Interlanguage Across L2 Modalities and Proficiency Levels

Over time, interlanguage studies have shifted from early qualitative to quantitative studies of specific linguistic structures. However, the focus of these studies is usually on one aspect of an interlanguage instead of the whole system. The ideal object of interlanguage research is a second language (L2) learner language system, for only in this way can the entire L2 learning process can be examined. As a self-organizing and self-regulated system, the panorama of interlanguage can be revealed objectively through a complex network approach. In this study, we construct eight interlanguage dependency syntactic networks of varying proficiency levels and modalities, and conduct a quantitative study of respective network parameters. We find that all syntactic networks of Chinese L2 learners (English native speakers) initially present scale-free and small-world properties. Additionally, there is no sudden syntactic emergence in interlanguage with different modalities. This suggests varying regularities in the development of a syntactic network between interlanguage and native language acquisition. Moreover, the first language plays an important role in L2 development. The network parameters (<k>), L, C, ND, and NC can differentiate interlanguage modalities, and five quantitative parameters, <k>, C, ND, γ′, and NC, can indicate L2 proficiency.

A hierarchy in clusters of cephalopod mRNA editing sites

RNA editing in the form of substituting adenine to inosine (A-to-I editing) is the most frequent type of RNA editing, observed in many metazoan species. A-to-I editing sites form clusters in most studied species, and editing at clustered sites depends on editing of the adjacent sites. Although functionally important in some specific cases, A-to-I editing in most considered species is rare, the exception being soft-bodied cephalopods (coleoids), where tens of thousands of potentially important A-to-I editing sites have been identified, making coleoids an ideal object for studying of general properties and evolution of A-to-I editing sites. Here, we apply several diverse techniques to demonstrate a strong tendency of coleoid RNA editing sites to cluster along the transcript. We identify three distinct types of editing site clusters, varying in size, and describe RNA structural features and mechanisms likely underlying formation of these clusters. In particular, these observations may resolve the paradox of sequence conservation at large distances around editing sites.