نتایج جستجو برای: pickup
تعداد نتایج: 2171 فیلتر نتایج به سال:
This paper proposes a technique that estimates the locations along the string of the plucking event and the magnetic pickup of an electric guitar based on the autocorrelation of the spectral peaks. To improve accuracy, a method is introduced to flatten the spectrum before applying the autocorrelation function to the spectral peaks. The minimum mean squared error between the autocorrelation of t...
The helium gravitational focusing cone has been observed using pickup He, first during the solar minimum in 1984 –1985 with the AMPTE/IRM spacecraft, and again in more detail from 1998 to 2002 with ACE and in 2000 with Nozomi. Five traversals of the cone allow us to obtain an accurate determination of the ecliptic longitude of the interstellar wind flow direction, λ = 74.43◦±0.33◦, while observ...
We present here the development of optical pickup for acoustic violin. Unlike other optical pickups, this one works in a reflective mode which is potentially less intrusive. This pickup, aimed principally at pitch tracking, uses a modulation technique to improve the signal-to-noise ratio, and limit artifacts of the ambient light.
This paper concentrates on a new framework for a post-market reassignment of requests in a Collaborative Carrier Network (CCN). While the framework was applied to a pickup and delivery scenario in [BB07] we now use it for the vehicle routing of a carrier network offering LTL pickup services leading to a set of interdependent capacitated traveling salesman tours.
Pickup and delivery problems constitute an important class of vehicle routing problems in which objects or people have to be collected and distributed. This paper introduces a general framework to model a large collection of pickup and delivery problems, as well as a three-field classification scheme for these problems. It surveys the methods used for solving them.
This thesis considers the Dynamic Pickup and Delivery Problem (DPDP), a dynamic multi-stage vehicle routing problem in which each demand requires two spatially separated services: pickup service at its source location and then delivery service at its destination location. The Dynamic Pickup and Delivery Problem arises in many practical applications, including taxi and courier services, manufact...
In this paper we introduce a new, pickup and delivery vehicle routing model where weight limits and also packing constraints are taken into account. In the model the vehicles have to transport 3-dimensional boxes from their pickup points into their delivery points. The boxes have weights and the vehicles has to satisfy a weight limit. We present a heuristic algorithm for the solution of the pro...
We present a novel variation of the vehicle routing problem VRP . Single commodity cargo with pickup and delivery service is considered. Customers are labeled as either cargo sink or cargo source, depending on their pickup or delivery demand. This problem is called a single commodity vehicle routing problem with pickup and delivery service 1-VRPPD . 1-VRPPD deals with multiple vehicles and is t...
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