نتایج جستجو برای: niti tee

تعداد نتایج: 4955  

Journal: :Journal of physics 2021

The Trusted Execution Environment (TEE) is mainly used to protect sensitive information and ensure security. TEE has been in the system structure of various mobile devices. With development TEE, attack methods against gradually appear. virtualized architecture proposed by existing research can solve some security problems caused architecture, but there are still deficiencies. To enhance a TEE-b...

Journal: :Acta biomaterialia 2008
A Bansiddhi D C Dunand

NiTi foams were created with a structure (32-36% open pores 70-400 microm in size) and mechanical properties (4-25 GPa stiffness, >1000 MPa compressive strength, >42% compressive ductility, and shape-memory strains up to 4%) useful for bone implant applications. A mixture of NiTi and NaCl powders was hot-isostatically pressed at 950 and 1065 degrees C and the NaCl phase was then dissolved in wa...

Journal: :Dental press journal of orthodontics 2013
Marco Abdo Gravina Ione Helena Vieira Portella Brunharo Cristiane Canavarro Carlos Nelson Elias Cátia Cardoso Abdo Quintão

OBJECTIVE This research aimed to compare, through traction tests, eight types of superelastic and heat-activated NiTi archwires, by six trade companies (GAC, TP, Ormco, Masel, Morelli and Unitek) to those with addition of copper (CuNiTi 27°C and 35°C, Ormco). METHODS The tests were performed in an EMIC mechanical testing machine, model DL10000, capacity of 10 tons, at the Military Institute o...

2015
Mareike Frensemeier Jessica S Kaiser Carl P Frick Andreas S Schneider Eduard Arzt Ray S Fertig Elmar Kroner

A switchable dry adhesive based on a nickel-titanium (NiTi) shape-memory alloy with an adhesive silicone rubber surface has been developed. Although several studies investigate micropatterned, bioinspired adhesive surfaces, very few focus on reversible adhesion. The system here is based on the indentation-induced two-way shape-memory effect in NiTi alloys. NiTi is trained by mechanical deformat...

2012
Jung-Hong Ha Sang-Shin Park

OBJECTIVES The purpose of this study was to investigate the screw-in effect and torque generation depending on the size of glide path during root canal preparation. MATERIALS AND METHODS Forty Endo-Training Blocks (REF A 0177, Dentsply Maillefer) were used. They were divided into 4 groups. For groups 1, 2, 3, and 4, the glide path was established with ISO #13 Path File (Dentsply Maillefer), #...

2013
Kumar Yadav

Objective: To explore the changes in nickel-titanium (NiTi) archwires after exposure to fluoride-containing acetic acid solutions. Materials and methods: Preformed rectangular NiTi wires were immersed in either an acidulated fluoride solution, a neutral fluoride solution or distilled water (control) for 1.5 hours at 37°C. After immersion, the unloading force values at four deflection points wer...

2005
HUSEYIN SEHITOGLU

This work focuses on the stress-induced transformation in solutionized and overaged single-crystal NiTi alloys. The potential role of detwinning on the recoverable strains was investigated both theoretically and also with temperature-cycling experiments. The detwinning is the growth of one variant within a martensite in expense of the other. It is shown that the experimental recoverable strains...

2015
Cláudia Maria de Castro Serafim Júlio de Araújo Gurgel Carollyne Mota Tiago Rudys Rodolfo de Jesus Tavarez Etevaldo Matos Maia Filho

This study compared time to correction of mandibular anterior crowding using two arch wire sequences, one with conventional nickel-titanium (NiTi) arch wires and the other with conventional and NiTi heat-activated arch wires. Twenty-two boys and girls (mean age: 16.68 ± 2.66) with moderate crowding (3-6 mm) were assigned randomly to one of two groups and followed up for five months (six assessm...

2017
Keisuke Komura Satoshi Nakae Kazufumi Hirakawa Naoyuki Ebine Kazuhiro Suzuki Haruo Ozawa Yosuke Yamada Misaka Kimura Kojiro Ishii

Background To establish Japanese children's estimated energy requirements, total energy expenditure (TEE) data measured using the doubly labeled water (DLW) method is needed. This study aimed to 1) obtain basic TEE data from Japanese children measured using DLW (TEEDLW), 2) compare TEEDLW with TEE estimated by various estimation formulas to calculate their accuracy, and 3) develop a new equatio...

Journal: :American journal of physiology. Endocrinology and metabolism 2012
Susan B Racette Sai Krupa Das Manjushri Bhapkar Evan C Hadley Susan B Roberts Eric Ravussin Carl Pieper James P DeLany William E Kraus James Rochon Leanne M Redman

Calorie restriction (CR) is a component of most weight loss interventions and a potential strategy to slow aging. Accurate determination of energy intake and %CR is critical when interpreting the results of CR interventions; this is most accurately achieved using the doubly labeled water method to quantify total energy expenditure (TEE). However, the costs and analytical requirements of this me...

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