教育科研
Semantic Scholar | AI-Powered Research Tool
Semantic Scholar uses groundbreaking AI and engineering to understand the semantics of scientific literature to help Scholars discover relevant research.
Scale of the Universe
Scale of Universe is an interactive experience to inspire people to learn about the vast ranges of the visible and invisible world.
AI Homework Helper - All Subjects & Levels | Mindko
LMS-integrated AI homework helper for all major learning platforms. All the tools you need to excel in your studies.
WordHub - Comprehensive English Language Learning Platform
Save words as you read, remember them with context-rich review, and explore trusted dictionary, WordNet, and etymology data when you want to go deeper.
Sci-Hub
1788499954 The Influence of Lattice Mismatch on Indium Phosphide Based High Electron Mobility Transistor (HEMT) Structures Observed in High Resolution Monochromatic Synchrotron X-Radiation Diffraction Imaging MRS Proc., 1992 ABSTRACTThe formation of mismatch dislocations in layered semiconductor str
Practice typing by retyping ENTIRE books — TypeLit.io
Free Typing Practice | Boost your typing speed while reading great books like Alice in Wonderland, 1984, Dracula, and The Art of War — or import your own!
Connected Papers | Find and explore academic papers
Connected Papers is a visual tool to help researchers and applied scientists find academic papers relevant to their field of work.
Wolfram MathWorld: The Web's Most Extensive Mathematics Resource
Comprehensive encyclopedia of mathematics with 13,000 detailed entries. Continually updated, extensively illustrated, and with interactive examples.
Learn a Language Online - Fast & Effective | Babbel
Babbel is the effective way to learn a new language. Our system uses scientifically proven methods to improve your grammar, vocabulary, and pronunciation.
Welcome | Open Yale Courses
In the modern world we yearn for great leaders but resist them when they come along. In this much-needed essay, Steven B. Smith tells us that a statesman is something far different from a demagogue or a technocrat; he or she incorporates many qualities of leadership—persuasiveness, courage, foresigh
LoveStudy.ai: AI Flashcards, Quiz & Notes Make Learning Easy
Create online flashcards, study quizzes and explore our notes taker with LoveStudy.ai! Boost learning efficiency quickly now. LoveStudy AI is your go-to.
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