Aerosol jet printing of silver inks is a promising approach for 3D electronics, particularly obtaining very complex circuits with high‐resolution conductive pads and traces. Common are however not competitive traditional bulk metal conductors, requiring sintering at high temperatures as well having significant porosity that can result in early failure. Herein, the possibility using electroplati...

In the last decade, paper analytical devices (PADs) have evolved into sophisticated yet simple sensors with biological and environmental applications in the developed and developing world. The focus of this review is the technological improvements that have over the past five years increased the applicability of PADs to real-world problems. Specifically, this review reports on advances in sampl...

the track stiffness experienced by a train will vary along the track. sometimes the stiffness variation may be very large within a short distance. one example is when an unsupported sleeper is hanging in the rail. track stiffness is then, locally at that sleeper, very low. at insulated joints the bending stiffness of the rail has a discontinuity implying a discontinuity also of the track stiffn...

The PEP TPC' is a cylinder two meters long with a radius of one meter filled with argon mixed with 20% methane. The TPC can operate at pressures from one to 10 atmospheres. When a particle traverses the TPC, the electrons liberated by ionization drift parallel to the cylinder axis (z-axis) at about 5 cm per microsecond. lhe detector plane at each end is divided into six sectors, each of which h...

Although psychiatric advance directives (PADs) are grounded in the ethics of autonomy, the relationship between the two is unclear. PADs are legal documents that allow individuals with mental illness to record their treatment preferences should they become incompetent in the future. The relationship between autonomy and PADs has been discussed in ethical, legal, and philosophical terms, but has...

Current statutes enabling psychiatric advance directives (PADs) typically include provisions allowing override of patients' choices by treatment staff. Lest the purpose of the PAD be vitiated by too broad an application of the override mechanism, its use should be carefully limited. In inpatient settings, voluntary patients should have the right to decline treatments in advance, although not an...

Often such streams are high-volume: AT&T’s call-detail stream contains roughly 300 million calls per day requiring approximately 7GBs of storage space. Typically, such stream data arrives “as is” in ad hoc formats with poor documentation. In addition, the data frequently contains errors. The appropriate response to such errors is applicationspecific. Some applications can simply discard unexpec...

Metallized paper is patterned to create touch pads of arrayed buttons that are sensitive to contact with both bare and gloved fingers. The paper-based keypad detects the change in capacitance associated with the touch of a finger to one of its buttons. Mounted on an alarmed cardboard box, the keypad requires the appropriate sequence of touches to disarm the system.

Efforts to adapt and extend graphic arts printing techniques for demanding device applications in electronics, biotechnology and microelectromechanical systems have grown rapidly in recent years. Here, we describe the use of electrohydrodynamically induced fluid flows through fine microcapillary nozzles for jet printing of patterns and functional devices with submicrometre resolution. Key aspec...

WE have designed a holder for use with Seitz EK bacterial filter-pads (diameter 3 cm.) in which the filtering liquids come in contact only with pyrex glass and a disc of stainless steel. This apparatus has the advantage that toxic metals (e.g. copper) cannot be dissolved by the filtering liquids as from the ordinary metal holder from which the plating (e.g. silver or rhodium) has been worn. Als...