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Realistic mathematics education (RME) and didactical situations in mathematics (DSM) in the context of education reform in Vietnam

mathematics education

Thao TP, Trung T.
GSID: yHg_UKMmdI0J
NT Trung, TP Thao, T Trung - Journal of Physics: Conference …, 2019 - iopscience.iop.org

Abstract Mathematics Education plays a key role in the ongoing education reform in Vietnam, which commenced with the renewal of the curriculum and textbooks (from primary …

Atomic-Monolayer Two-Dimensional Lateral Quasi-Heterojunction Bipolar Transistors with Resonant Tunneling Phenomenon.

ACS nano

Lin CY, Zhu X, Tsai SH, Tsai SP, Lei S, Shi Y, Li LJ, Huang SJ, Wu WF, Yeh WK, Su YK, Wang KL, Lan YW.
PMID: 28976732
ACS Nano. 2017 Nov 28;11(11):11015-11023. doi: 10.1021/acsnano.7b05012. Epub 2017 Oct 24.

High-frequency operation with ultrathin, lightweight, and extremely flexible semiconducting electronics is highly desirable for the development of mobile devices, wearable electronic systems, and defense technologies. In this work, the experimental observation of quasi-heterojunction bipolar transistors utilizing a monolayer of...

Transfer Calibration Validation Tests on a Heat Flux Sensor in the 51 mm High-Temperature Blackbody.

Journal of research of the National Institute of Standards and Technology

Murthy AV, Tsai BK, Saunders RD.
PMID: 27500049
J Res Natl Inst Stand Technol. 2001 Oct 01;106(5):823-31. doi: 10.6028/jres.106.039. Print 2001.

Facilities and techniques to characterize heat flux sensors are under development at the National Institute of Standards and Technology. As a part of this effort, a large aperture high-temperature blackbody was commissioned recently. The graphite tube blackbody, heated electrically,...

Distributed Information Compression for Target Tracking in Cluster-Based Wireless Sensor Networks.

Sensors (Basel, Switzerland)

Liao SK, Lai KJ, Tsai HP, Wen CY.
PMID: 27338417
Sensors (Basel). 2016 Jun 22;16(6). doi: 10.3390/s16060937.

Target tracking is a critical wireless sensor application, which involves signal and information processing technologies. In conventional target position estimation methods, an estimate is usually demonstrated by an average target position. In contrast, this work proposes a distributed information...

Coherent selection of invisible high-order electromagnetic excitations.

Scientific reports

Tseng ML, Fang X, Savinov V, Wu PC, Ou JY, Zheludev NI, Tsai DP.
PMID: 28295021
Sci Rep. 2017 Mar 15;7:44488. doi: 10.1038/srep44488.

Far-field spectroscopy and mapping of electromagnetic near-field distribution are the two dominant tools for analysis and characterization of the electromagnetic response in nanophotonics. Despite the widespread use, these methods can fail at identifying weak electromagnetic excitations masked by stronger...

Preimplantation genetic screening of blastocysts by multiplex qPCR followed by fresh embryo transfer: validation and verification.

Molecular cytogenetics

Yang YS, Chang SP, Chen HF, Ma GC, Lin WH, Lin CF, Tsai FP, Wu CH, Tsai HD, Lee TH, Chen M.
PMID: 26157486
Mol Cytogenet. 2015 Jul 08;8:49. doi: 10.1186/s13039-015-0140-9. eCollection 2015.

BACKGROUND: Aneuploidy is an important etiology of implantation failure and quantitative real-time polymerase chain reaction (qPCR) seems a promising preimplantation genetic screening (PGS) technology to detect aneuploidies. This verification study aimed at verifying the impact on reproductive outcomes in...

Type II GaSb quantum ring solar cells under concentrated sunlight.

Optics express

Tsai CP, Hsu SC, Lin SY, Chang CW, Tu LW, Chen KC, Lay TS, Lin CC.
PMID: 24922245
Opt Express. 2014 Mar 10;22:A359-64. doi: 10.1364/OE.22.00A359.

A type II GaSb quantum ring solar cell is fabricated and measured under the concentrated sunlight. The external quantum efficiency confirms the extended absorption from the quantum rings at long wavelength coinciding with the photoluminescence results. The short-circuit current...

Quasi-unit-cell model for an Al-Ni-Co ideal quasicrystal based on clusters with broken tenfold symmetry.

Physical review letters

Abe E, Saitoh K, Takakura H, Tsai AP, Steinhardt PJ, Jeong H.
PMID: 10990752
Phys Rev Lett. 2000 May 15;84(20):4609-12. doi: 10.1103/PhysRevLett.84.4609.

We present new evidence supporting the quasi-unit-cell description of the Al72Ni20Co8 decagonal quasicrystal which shows that the solid is composed of repeating, overlapping decagonal cluster columns with broken tenfold symmetry. We propose an atomic model which gives a significantly...

Structural study of an Al73Ni22Fe5 decagonal quasicrystal by high-angle annular dark-field scanning transmission electron microscopy.

Journal of electron microscopy

Saitoh K, Tanaka M, Tsai AP.
PMID: 11469408
J Electron Microsc (Tokyo). 2001;50(3):197-203. doi: 10.1093/jmicro/50.3.197.

A water-quenched Al73Ni22Fe5 decagonal quasicrystal was investigated by the selected-area electron diffraction, convergent-beam electron diffraction and high-angle annular dark-field scanning transmission electron microscope methods. The alloy shows very sharp spots and nearly no diffuse scattering in the diffraction patterns,...

"Back to the future"--an account discovery of stable quasicrystals.

Accounts of chemical research

Tsai AP.
PMID: 12534302
Acc Chem Res. 2003 Jan;36(1):31-8. doi: 10.1021/ar010013x.

In this Account, I will describe the discoveries of a series of stable quasicrystals in which I participated during the past 15 years. These discoveries led to a paradigm shift in the field of quasicrystals. The story started when...

The structure of a decagonal Al72Ni20Co8 quasicrystal.

Acta crystallographica. Section A, Foundations of crystallography

Takakura H, Yamamoto A, Tsai AP.
PMID: 11526307
Acta Crystallogr A. 2001 Sep;57:576-85. doi: 10.1107/s0108767301007942. Epub 2001 Sep 01.

The structure of a decagonal Al72Ni20Co8 quasicrystal with space group P10(5)/mmc has been determined on the basis of a single-crystal X-ray data set using the five-dimensional description. The best-fit model structure based on a cluster model having lower symmetry...

Ionothermal synthesis of metal oxalatophosphonates with a three-dimensional framework structure: Na2M3(C2O4)3(CH3PO3H)2 (M = FeII and MnII).

Inorganic chemistry

Tsao CP, Sheu CY, Nguyen N, Lii KH.
PMID: 16878946
Inorg Chem. 2006 Aug 07;45(16):6361-4. doi: 10.1021/ic0603959.

Two isostructural transition-metal oxalatophosphonates, Na2M3(C2O4)3(CH3PO3H)2 (M = Fe(II) and Mn(II)), have been synthesized by using a low-melting-point eutectic mixture of choline chloride and malonic acid as a solvent and characterized by single-crystal X-ray diffraction and 57Fe Mössbauer spectroscopy. The...

Showing 1 to 12 of 442 entries