Normal mouse mammary epithelial cells from Balb/c mice were successfully cultivated on tissue culture plastic with lethally irradiated LA7 feeder cells. The feeder cells also promoted colony formation from single mouse mammary cells, and the fraction of cells that formed colonies was proportional to the density of feeder cells. The mouse mammary cells could be passaged at least 8-12 times as lo...

In automated assembly of printed circuit boards, the placement sequencing and feeder configuration problems turns out to be two of the four major problems that need to be solved efficiently to get better utilization from the use of computer controlled electronic component placement machines. The forms of these problems may show variability depending on the architecture of the placement machine ...

Growth arrested Swiss mouse embryonic 3T3 cells are used as feeders to support the growth of epidermal keratinocytes and several other target cells. The 3T3 cells have been extensively subcultured owing to their popularity and wide distribution in the world and, as a consequence selective inclusion of variants is a strong possibility in them. Inadvertently selected variants expressing innate re...

*Correspondence: Marco Neri, Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Osservatorio Etneo, Piazza Roma, 2, 95123 Catania, Italy e-mail: [email protected] The detection and understanding of the movement of magma at very shallow levels remains one of the most fascinating challenges of modern volcanology, because such information allows us to identify and circumscribe...

Blood pressure changes, or lack of them, in the feeding pedicle to a cerebral arteriovenous malformation appear to be a more sensitive guide by which to monitor the progress of a therapeutic embolization than are fluoroscopic or serial angiographic changes. We have measured the feeder pressure in three patients before embolization with particulate materials and compared the pressure with subseq...

This research embodies the design, construction and simulation of a feeder pillar (415VAC) with over-current, overload and earth-fault protection with the aid of a phase sequence relay, contactor, earth-leakage circuit breaker and three-phase overload relay. The analog voltmeters in the various bus-bars (red, yellow and blue phases) in a conventional feeder pillar is replaced with a digital pan...

This paper deals with the investigation of a contactless sheet metal feeder for metal forming machines. The concept is based on an asynchronous linear motor in which the sheet metal is used as the eddy currents runner. First numerical analyses were performed by means of a parameterized finite-element (FE) model of the feeder. The focus was on the investigation of the operational characteristics...

The Inter feeder Power Flow Regulator (IFPFR) proposed in this paper consists of several voltage source inverters with common dc bus; each inverter is connected in series with one of different independent distribution feeders in the power system. This paper is concerned with how to transfer power between the feeders for load sharing purpose. The power controller of each inverter injects the pow...

A total of 240 Holstein bulls (121 ± 2.0 kg initial BW; 99 ± 1.0 d of age), from 2 consecutive fattening cycles, were randomly allocated in 1 of 6 pens and assigned to 1 of the 3 treatments consisting of different concentrate feeder designs: a control feeder with 4 feeding spaces (CF), a feeder with less concentrate capacity (CFL), and a single-space feeder with lateral protections (SF). Each p...