I test grooming products for a living—this $150 beard trimmer is the easiest-to-use device I've tried

Even with up to 40 length options, it feels simple.
Nature

Microarray fabrication with covalent attachment of DNA using Bubble Jet technology

Here we present a method for the fabrication of microarrays in which presynthesized oligonucleotides are ejected onto a glass surface by a Bubble Jet printing device. The oligonucleotides are then ...
IEEE

Machine learning-based channel estimation for insufficient redundancy OFDM receivers using comb-type pilot arrangement

Abstract: A severe drawback in broadband communications is the inter-symbol interference (ISI) originating from multipath fading, where one widely used solution is the orthogonal frequency-division ...
IEEE

Expanded Optical Frequency Comb Generation Using a Gain Switched Self-Seeded Passive Feedback Laser

Abstract: In this paper, an expanded optical frequency comb (OFC) using a gain-switched self-seeded passive feedback laser (PFL), is presented. The device consists of two sections comprising an active ...