Academic literature on the topic 'DEMATE'

On-orbit servicing of payloads is simplified when a spacecraft has been designed for serviceability. A key design criterion for a serviceable spacecraft is standardization of electrical connectors. The following research investigated the effects of extravehicular mobility unit (EMU) glove size, connector size, and connector type on usability of electrical connectors. An experiment was conducted exploring participants' ability to mate and demate connectors in an evacuated glovebox. Independent variables were two EMU glove-sizes, five connector size groups, and seven connector types. Significant differences in performance times and heart rate changes during mate and demate operations were found between EMU glove sizes, among connector types, and connector sizes. Subjective assessments of connectors were collected from participants with a usability questionnaire. The data were used to derive design recommendations for a National Aeronautics and Space Administration (NASA) recommended EMU-compatible electrical connector.

With the development of Knowledge Economy and the transforming of economic growth pattern, human capital has aroused extensive attention, particularly the effective of human capital, has been the academic focus of the study in recent years. First, the index system of factors of the effective of human capital allocation is constructed; then, corresponding analysis model is suggested based on the Fuzzy DEMATEL (Decision Making Trial Evaluation Laboratory) method. Finally, the total degrees of given and received influences, the degree of cause and the importance grade are analyzed.

The relevance of this study results from the increasing requirements of the state and society for the formation of supply chains in accordance with the goals of sustainable development. Decision-making on chain management should be based on a comprehensive assessment of all elements of the supply chain in order to further use green methods and technologies. An effective tool for such an assessment is the use of multicriteria decision-making methods (MCDM). The article presents an overview of the research on application of the MCDM «Method of evaluation and testing of decision-making» (DEMATEL) in green logistics and management of green supply chains. A methodology for evaluating and ranking elements of the green supply chain using the DEMATEL method is proposed. The implementation of the recommended methodology makes it possible to assess the relationship between all elements of the supply chain and the strength of their influence on each other. A calculated example of ranking the elements of the green supply chain reveals that the largest number of interconnections in the supply chain is accounted for transport and storage elements of the logistics system. The results of the study may be used as a basis for planning and implementation of decisions to use the green logistics tools.

Introduction: Usual sex determination and differentiation occurs progressively during the period of embryonic development, involving chromosomal differentiation, gonadal differentiation, and somatic or genital differentiation. Swyer syndrome is a disorder of sex chromosomes and sexual differentiation characterized by 46, XY pure gonadal dysgenesis in a phenotypically female person with primary amenorrhea, and a complete absence of functioning gonadal tissue. Gonadal malignancy occurs in 10-30% of cases, so gonadectomy is indicated at the time of diagnosis. The treatment includes, in addition to the gonadectomy, hormone replacement therapy, and psychological support. Objective: To present a case diagnosed and managed in our institution, in addition to reviewing the recent literature about this rare condition, but with a strong physical, psychological and social impact. Methods: Analysis of clinical history of a patient with Swyer's Syndrome, diagnostic and therapeutic management. Bibliographic review. Presentation of the clinical case: An 18-year-old patient attends our hospital presenting primary amenorrhea. She presents BMI: 22; Tanner stage PH III BD III, gynecological examination with vulva and vagina with normal characteristics. Hormone profile requested: FSH 96.8 mU/ml, LH 32.9 mU/ml, Estradiol <25 pg/ml; Total testosterone 0.15 ng/ml. TV ultrasound shows a hypoplastic uterus of 23x11x29 mm, ovaries are not visualized, and a heterogeneous solid image of 22x23x24 mm in the left adnexal region. 46XY karyotype. In the presence of these results, a diagnosis of Swyer's syndrome is made, so an MRI was requested, which shows a uterus of 14x20x26 mm, ovaries are not visualized, a solid lobulated oval image of 23x33x47 mm poorly vascularized standing out in the left adnexal region and free inguinal canals. It was decided to perform exploratory laparoscopy and gonadectomy. The intraoperative findings were: intrapelvic hypoplastic uterus, uterine tubes without any particularities, enlarged left gonad of approximately 3x4 cm pearly white with a hard elastic consistency, and a fibrous band in the right adnexa. Bilateral adnexectomy was performed, obtaining as a histological result well-differentiated left dysgerminoma SALL4 +, OCT3/4 +, negative Inhibin and CD 117 +, and right streak gonad. Conclusions: In the presence of a person with primary amenorrhea and absence or poor development of secondary sex characteristics, Swyer's syndrome should be suspected, and pertinent studies should be requested to arrive at the diagnosis. It is essential to perform gonadectomy at the time of diagnosis due to the risk of malignant transformation. The importance of a multidisciplinary approach and psychological accompaniment of patients and relatives is highlighted.

The core value of smart grid lies in the satisfaction extent of stakeholder’s demand, thus to construct an evaluation index system for smart grid it is necessary to construct a stakeholder’s demand index set at first to access the satisfaction extent of stakeholder’s demand reasonably and roundly. We divide the index system into the demand index set and assessment index set. As the former represents the macroscopic features while the latter represents the microscopic factors of the smart distribution grid. As for the calculation of combination weight, the DEMATEL-ANP-anti-entropy weight method and the improved Grey incidence approach is proposed. The DEMATEL-ANP-anti-entropy weight method is used for demand indices’ weight analysis, while the improved Grey incidence approach is put forward for the evaluation on assessment indices. Results of applying the proposed method in practical case shows that the proposed method is valuable in following aspects: scientifically assessing the intelligent development level and effectiveness of distribution grid, analyzing and recognizing the grid’s operation condition and weak link, giving reference to planning and construction of smart distribution grid, and so on.

Nowadays the multi-criteria decision making is very complicated due to uncertainty, vagueness, limited sources, knowledge and time. The Decision-making Trial and Evaluation Laboratory (DEMATEL) method is a widely used multi-criteria decision-making method to analyze the structure of a complex system. It is useful in analysing the cause and effect relationships between the components of the system. Fuzzy sets can be used to include uncertainty in multi-criteria decision making. Linguistic assessments of decision makers can be translated into fuzzy numbers. In this study, fuzzy numbers, intuitionistic fuzzy numbers and neutrosophic fuzzy numbers were used for the decision makers evaluations in the DEMATEL method. The aim of this study was to evaluate how different types of fuzzy numbers affect the final results. An application of risk in construction projects was selected from the literature, where seven experts used a linguistic scale to evaluate different criteria. The results showed that there are only slight differences between the weights of the criteria with regard to the type of fuzzy numbers.