New dual-channel system records lineage in high definition

2021 ◽  
Author(s):  
Kunal Jindal ◽  
Sadie VanHorn ◽  
Samantha A. Morris
Keyword(s):  
High Definition ◽  
Channel System ◽  
Dual Channel

Manufacturers' and distributors' capabilities influencing dual channel choice

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ryuta Ishii
Keyword(s):  
System Performance ◽  
Multinomial Logistic Regression ◽  
Product Line ◽  
Channel Structure ◽  
Channel System ◽  
Content Type ◽  
Multinomial Logistic Regression Analysis ◽  
Dual Channel ◽  
Channel Strategy ◽  
Dual Channels

PurposeMany manufacturers implement a dual channel strategy, which can be defined as the simultaneous use of integrated and independent channels of distribution for the same product line. This study employs the resource-based theory and examines how manufacturers' and distributors' capabilities affect manufacturers' choices of dual channel strategy. The study also examines how fit between organisational capability and channel structure affects channel system performance.Design/methodology/approachEmpirical testing was conducted using survey data collected from 262 Japanese business-to-business manufacturers. This study performed a multinomial logistic regression analysis to examine the antecedents of dual channel strategy and a t-test to examine its performance implications.FindingsThe results show that manufacturers' information capabilities and the availability of distributors' selling capabilities affect whether manufacturers choose a dual channel strategy, and that market turbulence moderates the effects of these two capability factors. The results also indicate that manufacturers can improve their channel system performance by choosing channel strategies that fit organisational capabilities.Originality/valueMost previous studies employ transaction cost theory to identify the factors driving the choice of dual channel strategy. However, these studies neglect the heterogeneity of resources/capabilities. Little is known about whether capability factors affect the dual channel strategy, and how this choice can be linked to channel system performance. By addressing this knowledge gap, this study contributes to enhance our understanding of dual channels.

A Dual-Channel System for Providing Location Estimation in Mobile Computing

2003 ◽  
Vol 04 (03) ◽  
pp. 271-290 ◽  
Author(s):  
Stephen Ka Chun Chan ◽  
Kenny Ka Ho Kan ◽  
Joseph Kee-Yin Ng
Keyword(s):  
Urban Areas ◽  
Blind Spot ◽  
Location Estimation ◽  
Signal Attenuation ◽  
Channel System ◽  
Location Services ◽  
Estimation Algorithms ◽  
Mobile Operator ◽  
Dual Channel ◽  
Gsm Network

A dual channel system, which is based on the GPS and the GSM Network, is being developed to compensate the problem of the lost of GPS signals in providing location services to mobile users in urban areas. In this design, when GPS signals are being blocked in blind spot areas, GSM positioning algorithms would be used as an alternative method to provide location estimations. This research is an investigation in search of a set of location estimation algorithms based on signal attenuation to work with GPS, so as to develop a dual channel positioning system. With the technical support from a local mobile operator, we have constructed and conducted several real world experiments for our investigation and results are promising.

scholarly journals Dual-Channel Spectral Domain Optical Coherence Tomography Based on a Single Spectrometer Using Compressive Sensing

Sensors ◽  
2019 ◽  
Vol 19 (18) ◽  
pp. 4006 ◽  
Author(s):  
Luying Yi ◽  
Liqun Sun ◽  
Mingli Zou ◽  
Bo Hou
Keyword(s):  
Optical Coherence Tomography ◽  
Compressive Sensing ◽  
Spectral Resolution ◽  
Single Channel ◽  
Optical Coherence ◽  
Channel System ◽  
Dual Channel ◽  
Imaging Depth ◽  
Imaging Speed ◽  
Sd Oct

Dual-channel spectral domain optical coherence tomography (SD-OCT) is one of the effective methods for improving imaging depth and imaging speed. In this paper, we design a dual-channel SD-OCT system based on a single spectrometer that can operate in two modes: (1) Increasing imaging speed and (2) expanding imaging depth. An optical path offset is preintroduced between the two channels to separate the two-channel data. However, this offset increases the requirement for the spectral resolution of the spectrometer in mode (1), so compressive sensing (CS) technology is used herein to overcome this problem. Consequently, in mode (1), when the spectral resolution of the spectrometer is the same as that used in the single-channel system, we use a dual-channel SD-OCT system combined with CS technology to double the imaging speed. In mode (2), when the spectral resolution of the spectrometer is only half of that used in a single-channel system, the imaging depth can be nearly doubled. We demonstrate the feasibility and effectiveness of the method proposed in this work by imaging a mirror, a fish fin, a fish eye, and an onion.

Dual-channel continuous-flow system for determination of phenylalanine and galactose: application to newborn screening.

1984 ◽  
Vol 30 (2) ◽  
pp. 287-290 ◽  
Author(s):  
G L Hoffman ◽  
R H Laessig ◽  
D J Hassemer ◽  
E R Makowski
Keyword(s):  
Continuous Flow ◽  
Flow System ◽  
Channel System ◽  
Sample Concentration ◽  
Dual Channel ◽  
Analytical Recovery ◽  
Low Incidence ◽  
Blood Specimens ◽  
The Cost

Abstract We describe a dual-channel AutoAnalyzer (Technicon) system for the simultaneous measurement of phenylalanine and galactose from blood specimens on filter-paper. Using a single 1/4-in.-diameter (6-mm) specimen, we measure both components fluorometrically at a rate of 70/h. Analytical recovery with the method and the linearity of measurements vs sample concentration are excellent through the ranges of interest, 0-200 mg/L for phenylalanine and 0-800 mg/L for galactose. Carryover at the critical values during screening, 40 mg/L for phenylalanine and 100 mg/L for galactose, is essentially zero. The dual-channel system provides the means to incorporate a low-incidence test, i.e., galactosemia (incidence 1/70 000), into an existing program for phenylalanine analysis, for which the higher rates (phenylketonuria, incidence 1/11 500) easily justify the cost of mass screening.

Increasing Voice Communication Channels Using Man's Binaural Listening Capability

1965 ◽  
Vol 7 (1) ◽  
pp. 28-37 ◽  
Author(s):  
Maurice Rappaport
Keyword(s):  
Single Channel ◽  
Channel System ◽  
Voice Communication ◽  
Dual Channel ◽  
Communication Situations ◽  
Human Ear ◽  
Conventional Manner ◽  
Binaural Listening ◽  
Practical Implications ◽  
Unique Capability

Sending voice messages over pairs of channels makes available more channels for communication than would be possible if channels were used in a conventional manner and only one message was sent over one channel. Although this means that all channels under the dual channel system must carry several messages simultaneously, it is shown that for subjects wearing earphones, message intelligibility remains remarkably higher than if the same number of messages are sent over a single channel. The superiority of the dual channel method is attributed primarily to the unique capability of the human ear-brain system to perceive diotic signals as being located in the center of the head while all dichotic signals are perceived as being off to the side of the head. Where seven voices are talking simultaneously intelligibility of messages under the dual channel method of transmission is about 94 percent as compared to 11 percent under the single channel method. Practical implications of these findings for a number of military and civilian communication situations are discussed.

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