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Quantum computers hold the promise of performing certain tasks that are intractable even on the world’s most powerful supercomputers. In the future, scientists anticipate using quantum computing to em...
Cybersecurity researchers have discovered vulnerabilities in the backend systems that feed content and advertising to smartphone applications, potentially exposing users' personal information.In resul...
Legend has it that Pope John Paul II, during his visit to Guatemala at the height of that country’s civil war in 1983, handed down a highly undiplomatic refrain to his official hosts: “you like to kil...
The National Science Foundation (NSF) has long been a leader in supporting research that has formed the basis for smart and connected communities, pushing sensor and networking capabilities beyond tod...
The problem is a fundamental incompatibility in communication styles.That conclusion might crop up during divorce proceedings, or describe a diplomatic row. But scientists designing polymers that can ...
A new series of ethnobotany films produced by filmmaker Sarah Betcher explores traditional Alaskan indigenous uses of wild plants for food, medicine and construction materials.The “Ties to Alaska’s Wi...
Stretch your arms / fingers up.Shake your arms/legs/hands/body.Raise your shoulders /drop your shoulders.Roll your shoulders forward/back.
Geospatial information users have the need to ingest data into a variety of desktop, Internet and 3D virtual globe applications they use in their daily work. Utilizing streaming data technology via ge...
Suppose n points are scattered uniformly at random in the unit square [0,1]2. Question: How many of these points can possibly lie on some curve of length λ? Answer, proved here: OP (λ · √n).
The idea of computing systems based on controlling atomic spins just got a boost from new research performed at the Massachusetts Institute of Technology (MIT) and the U.S. Department of Energy's (DOE...
针对当组态空间内存在大量的窄道时,快速搜索随机树算法(RRT)难以取得连通路径的问题,提出了一种改进的RRT-Connect算法。该算法利用改进的桥梁检测算法来识别和采样窄道,使得路径规划在窄道内能轻易取得连通性;同时将RRT-Connect算法与任意时间算法相结合,显著地减少了RRT-Connect算法的移动代价。每个算法分别运行100次,与RRT-Connect算法相比,改进后的算法成功次数由...
We propose an integrated 4x4 wavelength cross-connect switch utilizing an LCOS-based 12 port counts wavelength blocker array, which enables flexible control of optical power level, channel bandwidth a...
flexible and compact hierarchical optical cross-connect (HOXC) node that considers a practical waveband add/drop restriction is proposed. We introduce a prototype HOXC system and verify its technical ...
Hierarchical optical cross-connect architectures based on dedicated add/drop switches for terminating traffic is proposed. The architecture can significantly reduce switch scale for implementing color...
Compact and practical 4-degree optical cross-connect equipment with add/drop ports is realized for use in connecting ROADM ring networks. Eight 40-channel AWGs and forty 4x4 matrix switches are integr...

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