Results 141 to 150 of about 31,193 (295)

Self‐Adaptive Anhydrous Passivation Mitigates Open‐Circuit Voltage Loss in Pb‐Sn Mixed Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
In this report, a self‐adaptive anhydrous passivation strategy is introduced by incorporating trimellitic anhydride (TMAH) into the perovskite precursor. In situ hydrolysis of TMAH yields trimellitic acid (TMA); ‐C═O/‐COO− groups of TMAH/TMA form a chelate with undercoordinated Pb2+/Sn2+, regulate nucleation, promote (100) orientation, passivate ...
Md. Ataur Rahman   +6 more
wiley   +1 more source

A Simple Probabilistic Explanation of Term Frequency-Inverse Document Frequency (tf-idf) Heuristic (and Variations Motivated by This Explanation)

open access: yes, 2014
In document analysis, an important task is to automatically nd keywords which best describe the subject of the document. One of the most widely used techniques for keyword detection is a technique based on the term frequency-inverse document fre-quency ...
Havrlant, Lukas   +3 more
core  

Mathematical Document Classification via Symbol Frequency Analysis [PDF]

open access: yes, 2008
summary:Earlier work has examined the frequency of symbol and expression use in mathematical documents for various purposes including mathematical handwriting recognition and forming the most natural output from computer algebra systems.
Watt, Stephen M., Stephen M. Watt
core  

A Holistic Stabilization of the Anode in Lithium‐Sulfur Batteries Through a Ternary Alloy Fusion

open access: yesAdvanced Functional Materials, EarlyView.
LiTeAl anodes fabricated through a scalable thermal fusion technique holistically addresses the stability issues faced by lithium‐metal anodes in lithium–sulfur batteries. Aluminum forming a skeletal network with lithium suppresses dendrite growth and enhances energy density, while tellurium forming a robust SEI facilitates Li+‐ion flow.
Akhil Shenoy, Arumugam Manthiram
wiley   +1 more source

Standardized Effect Measures Informing Next‐Generation Strategies for Mechanical Stimulation in Cartilage Tissue Engineering

open access: yesAdvanced Healthcare Materials, EarlyView.
This systematic review quantitatively compares conventional mechanical stimulation strategies in cartilage tissue engineering across 85 heterogeneous in vitro studies. Applying standardized effect measures, meta‐analysis reveals that combined compression and shear loading optimally promotes cartilage matrix development.
Jiaqi K. Shen   +7 more
wiley   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

open access: yesAdvanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long   +26 more
wiley   +1 more source

Perancangan Informastion Retrieval (IR) Berbasis Term Frequency-Inverse Document Frequency (TF-IDF) untuk Peringkasan Teks Tugas Khusus Berbahasa Indonesia

open access: yes, 2013
Tugas khusus merupakan salah satu prasyarat kelulusan di STMIK ASIA. Informasi yang terdapat pada laporan tugas khusus terbilang cukup banyak, pada laporan tugas akhir berkisar antara 50 hingga 100 halaman.
Wijaya, Erwien Tjipta
core  

PENENTUAN TINGKAT KEMIRIPAN LAPORAN KERJA PRAKTEK MENGGUNAKAN METODE PEMBOBOTAN TERM FREQUENCY-INVERSE DOCUMENT FREQUENCY DAN COSINE SIMILARITY(STUDI KASUS: JURUSAN TEKNIK INFORMATIKA) [PDF]

open access: yes, 2018
Tindakan plagiarism sering terjadi di dunia pendidikan seperti pada penulisan-penulisan hasil karya ilmiah yang dilakukan oleh pihak mahasiswa maupun dosen.
WARTIWI
core  

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

open access: yesAdvanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll   +19 more
wiley   +1 more source

Semantic Based Information Retrieval System Using Modified Inverse Document Frequency

open access: yes, 2016
Today, Information Retrieval (IR) provides users with documents that will satisfy their information need. Word sense ambiguity is a cause of poor performance in IR system. IR performance will be increased if ambiguous words can be correctly disambiguated.
Tun, Phyo Thuzar, Myint, Zun May
core  

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