Health.com

Can You Take Vitamin D and Vitamin K Together?

Taking vitamins D and K together may help strengthen your bones. Different forms of vitamins D and K are available, including pills, powder, liquid, and injections. It can be unsafe to take either ...
Tech Xplore

Holographic printer produces 3D shapes in one shot

University of Utah researchers have demonstrated a new method of 3D printing that avoids the leaky seams that come with the ...
Tech Xplore

Programmable metasurface generates dozens of holograms at once

Over the past few decades, engineers have developed various devices that can create holograms, three-dimensional (3D) or ...
IEEE

New Constructions of 2-D Golay Complementary Array Sets With Highly Flexible Array Sizes for Massive MIMO Omni-Directional Transmission

Abstract: This letter is concerned with efficient design of two-dimensional (2-D) Golay complementary array sets (GCASs) with ideal aperiodic sums for two correlation directions. Two new direct ...
IEEE

Omnidirectional Precoding Designs Based on 2-D Golay Complementary Array Pairs for Massive MIMO Systems With Fully-Connected and Partially-Connected Structures

Abstract: Recently, the design of omnidirectional precoding has been widely studied for massive multiple-input multiple-output (MIMO) systems. For the base station (BS) equipped with a uniform ...
note

"Why Add the 'Third-Person Singular s'" is a Recommended English Book for Those Who Enjoy Logic

I recently read the NHK Publishing Shinsho book, "Solving English Grammar Mysteries Through English History: Why Add the 'Third-Person Singular s'?" It's interesting. I recommend it. I first learned ...
Business Wire

Many Small Businesses Add Card Payment Surcharges to Customer Purchases as Point-of-Sale Payment Methods Proliferate, J.D. Power Finds

TROY, Mich.--(BUSINESS WIRE)--Small business owners are less optimistic than they were a year ago and, as they accept a wider variety of payment methods such as debit and credit cards, digital wallets ...