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Artigos de revistas sobre o tema "Sma. smat"

Autor: Grafiati

Publicado: 19 de outubro de 2024

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1

Shi, Fei Fei, Bing Hou, Yu Long Li, Jian Lu e Han Zhao. "Experimental Study on a Graded Stainless Steel Sheet under Quasi-Static and Dynamic Loading". Key Engineering Materials 535-536 (janeiro de 2013): 56–59. http://dx.doi.org/10.4028/www.scientific.net/kem.535-536.56.

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Shearing tests and penetration tests were combined to determine the mechanical behavior of a stainless steel metal treated by surface mechanical attrition (SMA). SMAT is a usual treatment to strengthen the hardness of treated surface by severe mechanical strain, which generates also a gradient through the direction of thickness. This paper aimed at investigating the behavior of sheet metals treated by means of SMAT under impact loading. Double shearing tests at high strain rate were performed using Hopkinson bar. The experimental results demonstrated notable strain rate sensitivity and a good ductility without sacrificing the strength. An impact perforation test is also performed using inversed perforation test in order to study its sensibility of failure to the loading rate.

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Fitriani, Renita, e Muhammad Tajuddin. "Desain Sistem Informasi Sekolah Berbasis Android". Jurnal Matrik 16, n.º 1 (26 de julho de 2017): 12. http://dx.doi.org/10.30812/matrik.v16i1.19.

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Information technology today has grown rapidly, not least in Indonesia. almost all large and medium enterprises to apply information technology to help oprasi business. The use of thistechnology covers virtually all ages, ranging from young children to adults especially Smart phone. Smart phone is a phone with capabilities beyond computing and connectivity. Smat phonean Android-based smart phone that dominate the world's smart phone market, making the Android-based applications easier when compared to other operating systems. Likewise, the implementation of education, especially Senior High School (SMA). SMAN XXX require the system to help the school and students that there SMAN XXX. Where the application is built withthe programming language PHP (Personal Home Page), Database MySQL, XAMPP, Web Server and its utlity software using android studio. System development methodology that I use is the Waterfall methodology. This system generates data information teacher, student data, employee data, and the data on tuition payments. This application is also in lengakapi with features share the announcement, in which not only the admin can share information or send information, but students, teachers, and employees can also send or transmit information through features share the announcement, which will be received the user a notification announcement, extracurricular andSPP notifications and other announcements.

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Rehana, Fowzia, e Afroz Fahmin. "Strategic Management Accounting Techniques of Manufacturing Organizations of Bangladesh With Special Reference to Satisfaction Level". DIU Journal of Business and Entrepreneurship 10, n.º 02 (30 de dezembro de 2016): 123–34. http://dx.doi.org/10.36481/diujbe.v010i2.z8sfje06.

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Different types of business strategy and a number of sophisticated strategy-based techniques have emerged to support and meet the challenges of global competition and customer satisfaction. As a manufacturing organization’s business strategies, such as strategic pattern, strategic mission, and strategic positioning are different- the satisfaction levels of various Strategic Management Accounting Techniques (SMAT) can vary accordingly. This study discussed the degree of similarity and variances of these in listed manufacturing organizations in Bangladesh. Research question of the study is whether relationships between the satisfaction levels of different SMAT and different types of strategic pattern, vision, mission and positioning in listed manufacturing organizations of Bangladesh have been prevailing? Secondary data were collected from 100 listed companies between August and October, 2016. For statistical analysis we used ANOVA test. Out of 16 types of SMAT, none of the techniques found satisfied, few of the techniques are in neutral positions, and most of these are in dissatisfic levels. Study found that the SMAT varies between countries due to economical and cultural differences. Authors found that there is no difference in satisfaction level of different types of SMA techniques identified by the authors based on a previous study. Studics also found that there is significant difference in strategic mission and strategic positioning at 95% confidence interval, respectively.

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Demangel, Clémence, A. Poznanski, V. Steenhout, Alexandra Levesque, Hicham Benhayoune e Delphine Retraint. "Benefit of a Surface Nanocrystallization Treatment on Co28Cr6Mo Abrasive Wear Properties". Advanced Materials Research 966-967 (junho de 2014): 435–41. http://dx.doi.org/10.4028/www.scientific.net/amr.966-967.435.

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In this work, the use of a nanocrystallization surface treatment is considered on a cobalt based alloy. Since the Co28Cr6Mo is widely used as an articular bearing surface for artificial joints like hip and knee prostheses, the improvement of its tribological properties is a matter of concern to extend the lifespan of implants. By means of SMA (Surface Mechanical Attrition) treatment, a nanostructured layer is formed at the surface of a CoCrMo alloy establishing an optimized hardness gradient down to a depth of a few hundred of microns. Different treatment times (5, 15 and 25 minutes) are assessed comparatively and several surface polishing methods are studied: with clothes, brushes and a liquid filled with abrasive particles. The influence of processing parameters is discussed regarding hardness and topography. Moreover, the impact of surface modification is examined in terms of wear strengthening through scratch testing. The use of increasing loads mode gives some evidence of the benefit of SMAT. A significant decrease of penetration depth is noticed, from 30% to 60% on average. A straight correlation is also noticed depending on the surface finish method. This study illustrates both the ability of micro scratch testing to assess comparatively treated surface layer and to highlight the benefit of SMAT for wear strengthening in an abrasive wear mode.

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Sabora, Ririn S., Astin Lukum, Mardjan Paputungan, Hendri Iyabu, La Ode Aman e La Alio. "Studi Perbandingan Kemampuan Pemecahan Masalah Siswa Menggunakan Model Pembelajaran Problem Based Learning Dan Problem Solving". Jambura Journal of Educational Chemistry 4, n.º 2 (25 de setembro de 2022): 118–26. http://dx.doi.org/10.34312/jjec.v4i2.15781.

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Tujuan penelitian adalah untuk Adapun tujuan dari penelitian ini adalah untuk: Mengetahui perbedaan signifikan antara kemampuan pemecahan masalah siswa yang menerapkan model pembelajaran Problem Based Learning dan Problem Solving di SMAT Wira Bhakti. Desain penelitian yang digunakan adalah Quasi Eksperimental dengan rancangan pretest-posttest control group design. Sampel pada penelitian ini berjumlah 40 siswa yaitu sebanyak 20 siswa pada kelas eksperimen I dan 20 siswa pada kelas eksperimen II. Berdasarkan hasil yang diperoleh dari uji t, nilai thitung sebesar 4,9774 dan nilai ttabel pada taraf α = 0,05; dk = 38 diperoleh sebesar 1,68595. Dengan demikian thitung dilihat lebih besar dari ttabel (thitung = 4,9774 ˃ ttabel =1,68595) sehingga H0 ditolak dengan arti lain bahwa H1 diterima. artinya terdapat adanya perbedaan signifikan antara kemampuan pemecahan masalah siswa pada pokok bahasan hukum-hukum dasar kimia antara kelas yang menerapkan model pembelajaran problem based learning dan kelas yang menerapkan model pembelajaran problem solving di SMA Terpadu Wira Bhakti.

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Sakpichaisakul, Kullasate, Kamornwan Katanyuwong, Utcharee Intusoma, Tanitnun Paprad, Piradee Suwanpakdee, Chaiyos Khongkhatithum e Oranee Sanmaneechai. "Spinal muscular atrophy in an upper-middle-income nation before the advent of reimbursed disease-modifying therapies". BMJ Paediatrics Open 8, n.º 1 (agosto de 2024): e002775. http://dx.doi.org/10.1136/bmjpo-2024-002775.

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Objective To elucidate the clinical characteristics and standard of care (SoC) of spinal muscular atrophy (SMA) patients in Thailand, focusing on primary endpoints: age at death and a composite of death or tracheostomy need. Design Retrospective observational study. Setting Seven tertiary centres across Thailand. Patients Records of 110 patients with genetically confirmed SMA, spanning 2012–2021. Interventions Historical data review; no active interventions. Main outcome measures Age at death and a composite measure of death or tracheostomy necessity. Results The cohort included 1 SMA0, 50 SMA1, 40 SMA2 and 19 SMA3 cases. Median ages at the onset and diagnosis of SMA1 were 3 and 6.2 months. Of SMA1 patients, 63% required ventilators, and eight received dimethyltryptamines (DMTs) at a median of 15 months (range 6.4–24.5 months). The median time from onset to DMT was 11 months (range 4.2–20.5 months). Among SMA1 patients, 73% died by the study’s end. SMA2 and SMA3 patients' median onset ages were 11 and 24 months, respectively, with diagnosis at 24.8 and 68.7 months. Half of all types received physical therapy. Conclusions Significant delays in diagnosis and SoC access, including DMTs, were observed, underscoring urgent needs for improved diagnostic and care strategies to enhance SMA patient outcomes in Thailand.

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Waltz, Laurent, Delphine Retraint e Arjen Roos. "Semi-Massive Nanocrystallised Composites: From the Process to Mechanical and Microstructural Investigations". Materials Science Forum 762 (julho de 2013): 487–92. http://dx.doi.org/10.4028/www.scientific.net/msf.762.487.

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The aim of the present study is first to describe an original process, the so called duplex process, whose feature is the coupling between the well-known SMAT (Surface Mechanical Attrition Treatment) and the traditional co-rolling. The first step of this process consists of SMA-Treatment of 316L stainless steel sheets to generate nanocrystalline layers on their top surfaces according to the grain refinement mechanism of austenitic steels which is well described in the literature. During the second step, three treated sheets are co-rolled at 550°C to obtain a semi-massive nanocrystallised multilayer structure with improved mechanical strength alternating nanocrystalline, transition and coarse grain layers. The second part of this work deals with the mechanical and the microstructural characterization of the as-obtained structures. Thus, sharp nanoindentation tests performed over the cross section of the laminates coupled with Transmission Electron Microscopy (TEM) confirm the presence of nanograins after the thermomechanical treatment. In addition, the enhanced yield strength demonstrated by tensile tests correlate well with the theoretical volume fractions of nanoand transition layers. The interface cohesion between the sheets is tested by three-point bending tests and the interface bonding is evaluated by microstructural observations.

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Wicaksana, Andrean Fahreza Nur, e Akhmad Tabrani. "KEMAMPUAN MENULIS PUISI BERIMA SISWA KELAS X SMA BRAWIJAYA SMART SCHOOL". Hasta Wiyata 6, n.º 2 (30 de julho de 2023): 178–89. http://dx.doi.org/10.21776/ub.hastawiyata.2023.006.02.06.

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The ability to write rhymed poetry is one of the studies that illustrate students' ability to write poetry using the rhyme method. This is important to do because based on observations, students' ability to write poetry is considered lacking. This study aims to determine: 1) the ability of tenth-grade students of SMA Brawijaya Smart School Malang to write rhymed poetry, viewed from the aspect of sound; 2) the ability of tenth-grade students of SMA Brawijaya Smart School Malang to write rhymed poetry, viewed from the aspect of word positioning. The design used in this research is descriptive quantitative, describing the research variables in the form of numbers or statistics obtained from written test results that portray the ability of tenth-grade students of SMA Brawijaya Smart School Malang to write a rhymed poem. The data in this study was analyzed through five stages: collecting data, identifying data, classifying data, analyzing data, and drawing conclusions. The data processing results in this study show that the ability of tenth-grade students of SMA Brawijaya Smart School Malang to write rhymed poetry is already adequate. Based on the data processing results, it appears that the test results of the tenth-grade students of SMA Brawijaya Smart School Malang in writing rhymed poetry are categorized as good with an average score of 88.

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Septiana, Santi, Fahyuddin Fahyuddin e Nur Arfa Yanti. "ANALISI FAKTOR – FAKTOR YANG MEMPENGARUHI PRESTASI BELAJAR BIOLOGI : STUDI KASUS PADA SISWA KELAS XI SMA DI KABUPATEN MOROWALI". Jurnal Biofiskim: Pendidikan dan Pembelajaran IPA 3, n.º 1 (30 de junho de 2021): 33. http://dx.doi.org/10.33772/biofiskim.v3i1.23525.

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Abstrak. Tujuan penelitian ini adalah untuk mempelajari Pengaruh Lingkungan Keluarga, Lingkungan Sekolah, Minat Dan Motivasi Belajar Terhadap Prestasi Belajar Biologi Pada Siswa SMA Se-Kabupaten Morowali. Jenis penelitian ini adalah korelasi sebab akibat. Teknik pengambilan data menggunakan kuesioner dan dokumentasi. Populasi dalam penelitian ini berjumlah 2.630 siswa dan sampel berjumlah 169 siswa dengan teknik cluster stratified random sampling yang berasal dari siswa kelas XI IPA dari SMAN 1 Witaponda, SMAN 2 Bungku, SMAN 1 Menui Kepulauan, SMAS Al-Khairaat Kolono dan SMAN 1 Bungku Pesisir. Teknik analisis menggunakan teknik analisis jalur. Hasil penelitian menunjukkan bahwa variabel eksternal lingkungan keluarga dan lingkungan sekolah siswa SMA sekabupaten Morowali masih tergolong sedang secara rata. Lingkungan keluarga, lingkungan sekolah, minat, dan motivasi secara bersama sama memberikan pengaruh yang signifikan pada prestasi belajar biologi sebesar 24% dan sisanya 76% di pengaruhi oleh faktor lain. Kata Kunci: lingkungan keluarga, lingkungan sekolah, minat, motivasi dan prestasi belajar

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Hasnat, Abul, Safkat Tajwar Ahmed e Hafiz Ahmed. "A Review Of Utilizing Shape Memory Alloy In Structural Safety". AIUB Journal of Science and Engineering (AJSE) 19, n.º 3 (31 de dezembro de 2020): 116–25. http://dx.doi.org/10.53799/ajse.v19i3.111.

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Abstract- The advancement of material technology has paved the way for smart materials to emerge in the civil engineering sector. These smart materials possess the potential to encounter structural deterioration. Therefore, proper attention should be provided to smart materials regarding both research and application. Shape memory alloy (SMA) is a unique smart material that demonstrates growing applicability in numerous sectors. Recently, a lot of emphasis is being given to SMA research with a view to utilizing SMA in civil engineering structures. SMAs have some special properties such as high damping capacity, self-centering mechanism, two-way memory, self-adaptability etc. for which they can be used to make various types of structural control devices. An integrated assessment of the fundamental properties of SMAs, based on the existing data is presented by this paper in a concise and graphical manner. This paper also discusses the possibility of implementing SMAs in a wide range of civil engineering application, therefore motivating the large scale development of smart structures.

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Errico, Francesco, Carmen Marino, Manuela Grimaldi, Tommaso Nuzzo, Valentina Bassareo, Valeria Valsecchi, Chiara Panicucci et al. "Nusinersen Induces Disease-Severity-Specific Neurometabolic Effects in Spinal Muscular Atrophy". Biomolecules 12, n.º 10 (6 de outubro de 2022): 1431. http://dx.doi.org/10.3390/biom12101431.

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Intrathecal delivery of Nusinersen – an antisense oligonucleotide that promotes survival motor neuron (SMN) protein induction – is an approved therapy for spinal muscular atrophy (SMA). Here, we employed nuclear magnetic resonance (NMR) spectroscopy to longitudinally characterize the unknown metabolic effects of Nusinersen in the cerebrospinal fluid (CSF) of SMA patients across disease severity. Modulation of amino acid metabolism is a common denominator of biochemical changes induced by Nusinersen, with distinct downstream metabolic effects according to disease severity. In severe SMA1 patients, Nusinersen stimulates energy-related glucose metabolism. In intermediate SMA2 patients, Nusinersen effects are also related to energy homeostasis but involve ketone body and fatty acid biosynthesis. In milder SMA3 patients, Nusinersen mainly modulates amino acid metabolism. Moreover, Nusinersen modifies the CSF metabolome of a more severe clinical group towards the profile of untreated SMA patients with milder disease. These findings reveal disease severity-specific neurometabolic signatures of Nusinersen treatment, suggesting a selective modulation of peripheral organ metabolism by this CNS-directed therapy in severe SMA patients.

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Wang, Zhen Qing, Bo Zhou, Xiao Gang Guo e Li Min Zhou. "Mechanical Properties of Shape Memory Alloy Reinforced Composite". Key Engineering Materials 452-453 (novembro de 2010): 853–56. http://dx.doi.org/10.4028/www.scientific.net/kem.452-453.853.

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Shape memory alloy (SMA) has various application fields due to its shape memory effect and super elasticity. It can also be embedded into other material to produce SMA reinforced composite (SMAC). SMAC is a good candidate to realize structural smart control. In this paper the mechanical properties of SMAC in the plane stress state is investigated based on the theory of mechanics of composite material and the constitutive model expressing the thermo-mechanical behaviors of SMA.

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Mahmood Baitab, Danish, Dayang Laila Abang Haji Abdul Majid, Ermira Junita Abdullah e Mohd Faisal Abdul Hamid. "A review of techniques for embedding shape memory alloy (SMA) wires in smart woven composites". International Journal of Engineering & Technology 7, n.º 4.13 (9 de outubro de 2018): 129. http://dx.doi.org/10.14419/ijet.v7i4.13.21344.

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Metallic structures, in various industrial fields such as transport and aerospace, are mostly replaced by composite structures having less weight and good strength. There is also a need of intensification of the operational dynamic environment with high durability requirements. So a smart composite structure is required that can manifest its functions according to environmental changes. One method of producing smart composite structures is to embed shape memory alloys in composite structures. Shape memory alloys (SMAs) have significant mechanical and thermodynamic properties and are available in very small diameters less than 0.2mm. These SMAs are embedded into composites for obtaining smart composites having tunable properties, active abilities, damping capacity and self-healing properties. Shape memory alloys are available in different shapes as wires, sheets, foils, strips, etc. For smart composites, mostly SMA embedded are in wire shape. Different techniques are used for embedding SMA wires in composites. SMA wires can be embedded between layers of laminates of composites, or embedded directly as reinforcement in matrix and can be woven into fabrics and used as a reinforcement. This paper reviews the different techniques of embedding SMA wires in composite structures, their pros and cons and their applications.

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Maréchal, Xavier, Ricardo De Mendonça, Roger Miras, Jean Revilloud e Patrice Catty. "Functional characterization of the Ca2+-ATPase SMA1 from Schistosoma mansoni". Biochemical Journal 475, n.º 1 (11 de janeiro de 2018): 289–303. http://dx.doi.org/10.1042/bcj20170355.

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Schistosoma mansoni is a parasite that causes bilharzia, a neglected tropical disease affecting hundreds of millions of people each year worldwide. In 2012, S. mansoni had been identified as the only invertebrate possessing two SERCA-type Ca2+-ATPases, SMA1 and SMA2. However, our analysis of recent genomic data shows that the presence of two SERCA pumps is rather frequent in parasitic flatworms. To understand the reasons of this redundancy in S. mansoni, we compared SMA1 and SMA2 at different levels. In terms of sequence and organization, the genes SMA1 and SMA2 are similar, suggesting that they might be the result of a duplication event. At the protein level, SMA1 and SMA2 only slightly differ in length and in the sequence of the nucleotide-binding domain. To get functional information on SMA1, we produced it in an active form in Saccharomyces cerevisiae, as previously done for SMA2. Using phosphorylation assays from ATP, we demonstrated that like SMA2, SMA1 bound calcium in a cooperative mode with an apparent affinity in the micromolar range. We also showed that SMA1 and SMA2 had close sensitivities to cyclopiazonic acid but different sensitivities to thapsigargin, two specific inhibitors of SERCA pumps. On the basis of transcriptomic data available in GeneDB, we hypothesize that SMA1 is a housekeeping Ca2+-ATPase, whereas SMA2 might be required in particular striated-like muscles like those present the tail of the cercariae, the infecting form of the parasite.

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Lee, Sangsu, e Yong Bae Park. "3 Dimensional Pulse Detector Using SMA Connector". Journal of Korean Institute of Electromagnetic Engineering and Science 28, n.º 9 (setembro de 2017): 707–12. http://dx.doi.org/10.5515/kjkiees.2017.28.9.707.

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Bo, Zhonghe, Dimitris C. Lagoudas e David Miller. "Material Characterization of SMA Actuators Under Nonproportional Thermomechanical Loading". Journal of Engineering Materials and Technology 121, n.º 1 (1 de janeiro de 1999): 75–85. http://dx.doi.org/10.1115/1.2816003.

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The application of SMA actuators in smart structures usually involves thermally induced phase transformation with a variable applied stress in SMA actuators, resulting in thermomechanical nonproportional loading of SMAs in stress-temperature space. To investigate the constitutive response of SMAs under thermomechanical nonproportional loading, experiments for thermally induced phase transformation of binary NiTi SMA wires loaded by an elastic linear spring are performed in the Active Materials Laboratory at Texas A&M University. A constitutive model developed by Bo and Lagoudas (1998a, b, c) and Lagoudas and Bo (1998) is used as the basis for the theoretical prediction of the response of SMA line actuators loaded by springs with different elastic constants. Model predictions are compared with experimental results.

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Prescott, Lauren S., Andrea S. Dickens, Sandra L. Guerra, Jila Tanha, Desiree G. Phillips, Kathryn B. Lowe, Miguel A. Lozano Garcia et al. "SMART chemotherapy: A comprehensive cancer center’s journey to shared medical appointments." Journal of Clinical Oncology 32, n.º 30_suppl (20 de outubro de 2014): 135. http://dx.doi.org/10.1200/jco.2014.32.30_suppl.135.

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135 Background: Shared medical appointments (SMA) offer a novel approach to improve efficiency and quality of care consistent with the goals of the Institute of Medicine. To our knowledge, there are no established SMA models for oncology patients undergoing treatment. Our objective was to develop and implement a SMA for chemotherapy education and clearance for women with gynecologic cancer. Methods: We first assessed the level of interest in SMAs among our patients and providers through qualitative interviews. We subsequently created a multidisciplinary team comprised of physicians, mid-level providers, nurses, pharmacists, administrators, health education specialists and members of the QI Department. Our project consisted of several phases: 1) provider buy-in, 2) program development, 3) staff education, 4) implementation; and 5) patient recruitment. A plan-do-study-act cycle was performed following each SMA, using patient and provider feedback. Appropriate modifications were made before the subsequent SMA. Results: Both patients and providers identified pre-chemotherapy as an optimal area to pilot SMAs. We established a multidisciplinary Shared Medical Appointment and Readiness Teaching (SMART) clinic for all gynecologic oncology patients initiating chemotherapy with platinum- and taxane-based regimens. This model of care provides patient education within a framework of social support that empowers patients. We developed a standardized chemotherapy education presentation, and also provided patients with a tool kit that consisted of chemotherapy drug education, a guide to managing side effects, advanced directives and center contact information. Surveyed patients reported being highly satisfied with the group visit and would recommend SMA to other patients. Our preliminary data analysis revealed that SMART visits decreased wait time and increased value-added time for patients. Conclusions: SMAs for oncology patients initiating chemotherapy is both novel and feasible. A patient centric model, collaboration of multidisciplinary team members, and timely responsiveness to constructive feedback are essential to the successful integration of SMAs in an academic center.

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LI, Junfeng, e Hiroyuki HARADA. "1A1-R02 Phase Resistance with Displacement Feedback Control for a Thick SMA Actuator(Smart Mechanism "sMechanism" and its Control)". Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2013 (2013): _1A1—R02_1—_1A1—R02_4. http://dx.doi.org/10.1299/jsmermd.2013._1a1-r02_1.

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Jee, Kwang Koo, Jun Hyun Han, J. M. Park e Woo Yang Jang. "New SMA Actuator with High Energy Efficiency and Quick Response". Materials Science Forum 654-656 (junho de 2010): 2111–13. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.2111.

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The main drawbacks of SMA actuators are a slow response and a waste of electric power. The power should be continuously supplied for SMA elements to remain in the austenite state until the actuator begins to move to the other position. The problems are more serious when batteries and thick SMA elements are used. We develop a new SMA actuator which consumes little energy and responds very quickly. The actuator consists of a specially designed bias spring structure, and two SMA elements which exert the force in opposite direction to each other. The bias spring, unlike a common spring which has one stable position, has two stable positions. A SMA1, for instance, contracts on heating by electricity, the actuator takes one stable configuration. No further power supply is necessary to maintain the stable position, providing enough time for the SMA1 to cool. When the other SMA2 is heated, it contracts with enough force to move the bias spring and to expand the already-cooled SMA1. Power supply stops immediately after the actuator takes the other stable configuration, causing power saving and quick response.

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Alshannag, Mohammad J., Ali S. Alqarni e Mahmoud M. Higazey. "Superelastic Nickel–Titanium (NiTi)-Based Smart Alloys for Enhancing the Performance of Concrete Structures". Materials 16, n.º 12 (12 de junho de 2023): 4333. http://dx.doi.org/10.3390/ma16124333.

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Recent advances in materials science have led to the development of smart materials that can continuously adapt to different loading conditions and changing environment to meet the growing demand for smart structural systems. The unique characteristics of superelastic NiTi shape memory alloys (SMAs) have attracted the attention of structural engineers worldwide. SMAs are metallic materials that can retrieve their original shape upon exposure to various temperatures or loading/unloading conditions with minimal residual deformation. SMAs have found increasing applications in the building industry because of their high strength, high actuation and damping capacities, good durability, and superior fatigue resistance. Despite the research conducted on the structural applications of SMAs during the previous decades, the existing literature lacks reviews on their recent uses in building industry such as prestressing concrete beams, seismic strengthening of footing–column connections, and fiber-reinforced concrete. Furthermore, scarce research exists on their performance under corrosive environments, elevated temperatures, and intensive fires. Moreover, the high manufacturing cost of SMA and the lack of knowledge transfer from research to practice are the main obstacles behind their limited use in concrete structures. This paper sheds light on the latest progress made in the applications of SMA in reinforced concrete structures during the last two decades. In addition, the paper concludes with the recommendations and future opportunities associated with expanding the use of SMA in civil infrastructures.

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Dolce, Mauro, e Donatello Cardone. "Theoretical and Experimental Studies for the Application of Shape Memory Alloys in Civil Engineering". Journal of Engineering Materials and Technology 128, n.º 3 (25 de janeiro de 2006): 302–11. http://dx.doi.org/10.1115/1.2203106.

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Shape memory alloys (SMAs) have great potential for use in the field of civil engineering. The authors of this paper have been involved, from 1996, in several experimental and theoretical studies of the application of SMAs in civil engineering, for national and international research projects. This paper provides an overview of the main results achieved, consisting of the conceptual design, implementation, and testing of three families of SMA-based devices, namely: (i) special braces for framed structures, (ii) seismic isolation devices for buildings and bridges, and (iii) smart ties for arches and vaults. The main advantage of using SMA-based devices in the seismic protection of structures comes from the double-flag shape of their hysteresis loops, which implies three favorable features, i.e., self-centering capability, good energy dissipation capability, and high stiffness at small displacements. The main advantage of smart ties comes from the thermal behavior of SMA superelastic wires, which is opposite to that of steel rod. This implies a strong reduction of the force changes caused by variations of air temperature.

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Srivastava, Rupal, Saeed Hamood Alsamhi, Niall Murray e Declan Devine. "Shape Memory Alloy-Based Wearables: A Review, and Conceptual Frameworks on HCI and HRI in Industry 4.0". Sensors 22, n.º 18 (8 de setembro de 2022): 6802. http://dx.doi.org/10.3390/s22186802.

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Resumo:

Ever since its discovery, the applications of Shape Memory Alloys (SMA) can be found across a range of application domains, from structural design to medical technology. This is based upon the unique and inherent characteristics such as thermal Shape Memory Effect (SME) and Superelasticity (or Pseudoelasticity). While thermal SME is used for shape morphing applications wherein temperature change can govern the shape and dimension of the SMA, Superelasticity allows the alloy to withstand a comparatively very high magnitude of loads without undergoing plastic deformation at higher temperatures. These unique properties in wearables have revolutionized the field, and from fabrics to exoskeletons, SMA has found its place in robotics and cobotics. This review article focuses on the most recent research work in the field of SMA-based smart wearables paired with robotic applications for human-robot interaction. The literature is categorized based on SMA property incorporated and on actuator or sensor-based concept. Further, use-cases or conceptual frameworks for SMA fiber in fabric for ‘Smart Jacket’ and SMA springs in the shoe soles for ‘Smart Shoes’ are proposed. The conceptual frameworks are built upon existing technologies; however, their utility in a smart factory concept is emphasized, and algorithms to achieve the same are proposed. The integration of the two concepts with the Industrial Internet of Things (IIoT) is discussed, specifically regarding minimizing hazards for the worker/user in Industry 5.0. The article aims to propel a discussion regarding the multi-faceted applications of SMAs in human-robot interaction and Industry 5.0. Furthermore, the challenges and the limitations of the smart alloy and the technological barriers restricting the growth of SMA applications in the field of smart wearables are observed and elaborated.

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Platonov, I. A. "Analysis of the research work of Smolensk State Medical University in terms of indicators of publication and innovation activities of scientific workers and teaching staff for the 2019 academic year". Смоленский медицинский альманах, n.º 4 (2020): 4–11. http://dx.doi.org/10.37903/sma.2020.4.4.

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Avdeeva, T. G., I. F. Ostreikov, R. K. Usachev e E. M. Platonenkova. "Quality of dispensary observation of children and adolescents who underwent emergency and planned surgical interventions under General anesthesia". Смоленский медицинский альманах, n.º 2 (2020): 14–20. http://dx.doi.org/10.37903/sma.2020.2.1.

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Zernova, N. I., E. M. Pleshkova, N. S. Baranova e O. I. Udovikova. "FEATURES OF THE CLINICAL OPENING OF LEUKEMIA IN CHILDREN OF SMOLENSK AND THE SMOLENSK REGION". Смоленский медицинский альманах, n.º 2 (2020): 57–60. http://dx.doi.org/10.37903/sma.2020.2.10.

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Zurova, S. V. "FEATURES OF TYPE 1 DIABETES IN CHILDREN LIVING IN THE BRYANSK REGION". Смоленский медицинский альманах, n.º 2 (2020): 61–67. http://dx.doi.org/10.37903/sma.2020.2.11.

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Ibatulin, A. G., S. A. Zuk, M. V. Pasynkova, S. V. Karasevich e V. Y. Rodionova. "FEATURES OF TRANSPORTATION OF NEWBORNS IN THE SMOLENSK REGION". Смоленский медицинский альманах, n.º 2 (2020): 68–71. http://dx.doi.org/10.37903/sma.2020.2.12.

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Ivanova, A. A., Yu B. Labyzova e I. L. Alimova. "IMPAIRED RECOGNITION OF HYPOGLYCEMIA IN CHILDREN WITH TYPE 1 DIABETES". Смоленский медицинский альманах, n.º 2 (2020): 72–76. http://dx.doi.org/10.37903/sma.2020.2.13.

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Ivantsova, E. N., M. M. Sheko, I. M. Rusakova, N. V. Seredina e I. L. Alimova. "COMPARATIVE ANALYSIS OF THE RESULTS OF DETERMINING GLYCEMIA IN NEWBORNS". Смоленский медицинский альманах, n.º 2 (2020): 77–79. http://dx.doi.org/10.37903/sma.2020.2.14.

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Kireev, D. D., S. V. Reshetova, A. A. Ilyinsky, O. V. Porvina, T. V. Druzhinina, V. M. Oleinikova, I. N. Tsvetnaya e E. A. Volkova. "Research of the psychophysiological state of the central nervous system using the stress level control system (SLCS) in teenagers of 15-17 years old". Смоленский медицинский альманах, n.º 2 (2020): 80–84. http://dx.doi.org/10.37903/sma.2020.2.15.

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Klimachev, A. M., e E. M. Spivak. "CLINICAL FEATURES OF DEEP-PREMATURE NEWBORNS WITH DIFFERENT VARIANTS OF THE OPEN ARTERIAL DUCT". Смоленский медицинский альманах, n.º 2 (2020): 85–88. http://dx.doi.org/10.37903/sma.2020.2.16.

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Konyushek, A. G., e I. L. Alimova. "POSSIBILITIES OF APPLICATION OF WHO REGULATIONS FOR ASSESSING THE PHYSICAL DEVELOPMENT OF CHILDREN IN PRACTICE OF A PEDIATRIC". Смоленский медицинский альманах, n.º 2 (2020): 89–92. http://dx.doi.org/10.37903/sma.2020.2.17.

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Krivenko, A. S., V. N. Pokusaeva, E. B. Kostrova, A. A. Ivanova e T. A. Stepankova. "EFFECT THE GESTATION WEIGHT GAIN ON THE DEVELOPMENT OF FETUS AND PLACENTA". Смоленский медицинский альманах, n.º 2 (2020): 93–98. http://dx.doi.org/10.37903/sma.2020.2.18.

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Kunin, A. I., N. S. Petrosyan, P. V. Logvinov, A. V. Borsukov, T. V. Druzhinina, E. A. Volkova e V. V. Bekezin. "ARTERIAL VESSELS STIFFNESS AMONGST CHILDREN OF PRIMARY SCHOOL AGE AS AN EARLY DIAGNOSTIC MARKER OF CARDIOVASCULAR RISK". Смоленский медицинский альманах, n.º 2 (2020): 99–102. http://dx.doi.org/10.37903/sma.2020.2.19.

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Anikina, A. A., E. Yu Muts, V. N. Borovkova, E. A. Bogdanova e V. N. Shestakova. "ANALYSIS OF THE FREQUENCY OF RETINOPATHY OF PREMATURITY BORN AT LESS THAN 34 WEEKS GESTATION". Смоленский медицинский альманах, n.º 2 (2020): 21–24. http://dx.doi.org/10.37903/sma.2020.2.2.

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Kushnir, S. M., e L. K. Antonova. "AGE ASPECTS AUTONOMIC-REGULATORY PROVIDING MORFOFUNCTIONAL DJUSTMENT OF PUBERTY PERIOD". Смоленский медицинский альманах, n.º 2 (2020): 103–8. http://dx.doi.org/10.37903/sma.2020.2.20.

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Legonkova, T. I., A. V. Danilova, T. G. Stepina, O. V. Vojtenkova, O. N. Shtykova, L. A. Stolyarova, O. G. Chetyrkina e E. V. Matveeva. "PREVENTION OF RISK FACTORS OF EARLY COMPLETION OF BREASTFEEDING - CONSCIOUS NEED". Смоленский медицинский альманах, n.º 2 (2020): 112–17. http://dx.doi.org/10.37903/sma.2020.2.21.

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Marinich, V. V., e N. V. Shepelevich. "Psychogenetic studies of neuroticism in junior athletes in the pre-competition period of training". Смоленский медицинский альманах, n.º 2 (2020): 118–23. http://dx.doi.org/10.37903/sma.2020.2.23.

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Meshkova, R. Y., T. I. Legonkova e A. E. Ochkurenko. "POTENTIAL ROLE OF ACUTE URTICARIA IN CHILDREN OF YOUNGER SCHOOL WITH FOOD ALLERGY". Смоленский медицинский альманах, n.º 2 (2020): 124–27. http://dx.doi.org/10.37903/sma.2020.2.24.

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Muts, E. Y., K. A. Grishanova, V. N. Borovkova, E. A. Bogdanova, P. V. Burlakova e V. N. Shestakova. "CHARACTERISTICS OF PHYSICAL DEVELOPMENT OF CHILDREN BORN FROM MULTIPLE PREGNANCY". Смоленский медицинский альманах, n.º 2 (2020): 128–31. http://dx.doi.org/10.37903/sma.2020.2.25.

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Myakisheva, T. V., e T. G. Avdeeva. "DIFFICULTIES OF DIAGNOSTICS AND EVALUATION OF EFFECTIVENESS OF TREATMENT OF TUBERCULOSIS INFECTION OF PULMONARY AND ABDOMINAL LOCALIZATION IN CHILDREN". Смоленский медицинский альманах, n.º 2 (2020): 132–36. http://dx.doi.org/10.37903/sma.2020.2.26.

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Nagaeva, S. Yu, e D. S. Vlasova. "CLINICAL CHARACTERISTICS OF ACUTE INTESTINAL INFECTIONS IN YOUNG CHILDREN". Смоленский медицинский альманах, n.º 2 (2020): 137–41. http://dx.doi.org/10.37903/sma.2020.2.27.

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Novikova, O. B. "HEALTH STATUS OF CHILDREN WITH CYSTIC FIBROSIS IN THE SMOLENSK REGION". Смоленский медицинский альманах, n.º 2 (2020): 142–44. http://dx.doi.org/10.37903/sma.2020.2.28.

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Pashinskaya, N. B., e D. O. Pikina. "THE STATE OF CHILDREN’S CARDIOVASCULAR SYSTEM AFTER THE SURGICAL TREATMENT OF CONGENITAL HEART DEFECTS". Смоленский медицинский альманах, n.º 2 (2020): 145–47. http://dx.doi.org/10.37903/sma.2020.2.29.

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Bogormistrova, V. A., M. D. Grigoreva, P. V. Svoboda, V. N. Borovkova e V. N. Schestakova. "REPRODUCTIVE HEALTH OF 14-YEAR-OLD GIRLS CAUGHT IN A DIFFICULT LIFE SITUATION AND BROUGHT UP IN SOCIAL INSTITUTIONS FOR MINORS". Смоленский медицинский альманах, n.º 2 (2020): 25–28. http://dx.doi.org/10.37903/sma.2020.2.3.

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Piskun, T. A., V. A. Prilutskaya, N. U. Egorova, D. I. Yunevich e E. I. Solovey. "СONCENTRATIONS OF VITAMIN D IN CHILDREN OF THE FIRST TWO YEARS OF LIFE, DEPENDING ON THE TIME OF YEAR". Смоленский медицинский альманах, n.º 2 (2020): 148–52. http://dx.doi.org/10.37903/sma.2020.2.30.

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Spivak, E. M., e N. N. Spirin. "PRINCIPLES OF FORMATION AND PECULIARITIES OF JUVENILE MANIFESTATIONS OF CERVICAL DEGENERATIVE DISC DISEASE". Смоленский медицинский альманах, n.º 2 (2020): 153–56. http://dx.doi.org/10.37903/sma.2020.2.31.

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Shalkina, L. A., e I. L. Alimova. "RISK FACTORS OF IMPAIRED CARBOHYDRATE METABOLISM IN NEWBORNS FROM MOTHERS WITH EXCESSIVE GESTATIONAL WEIGHT GAIN". Смоленский медицинский альманах, n.º 2 (2020): 157–61. http://dx.doi.org/10.37903/sma.2020.2.32.

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Sharobaro, V. E., V. V. Bekesin e O. M. Chalenkova. "INDICATORS OF THE IMMUNE SYSTEM IN BRONCHIAL ASTHMA IN CHILDREN WITH TIME MEGALIA". Смоленский медицинский альманах, n.º 2 (2020): 162–66. http://dx.doi.org/10.37903/sma.2020.2.33.

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Shestakova, V. N., V. N. Borovkova, D. S. Anisimov, T. A. Mironova e M. A. Ermashova. "COMPARATIVE CHARACTERISTICS OF THE PSYCHO-EMOTIONAL STATE OF CHILDREN WITH REPRODUCTIVE HEALTH DISORDERS WHO ARE BROUGHT UP IN FAMILIES OF HIGH SOCIAL RISK". Смоленский медицинский альманах, n.º 2 (2020): 167–71. http://dx.doi.org/10.37903/sma.2020.2.34.

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