Abstract: Provided herein are methods of making a training aid for detecting a biohazard, and related devices and methods of using the device, including a canine training aid. The devices are made by positioning a polymer layer in proximity and physically separated from a biological material, so that volatile organic compounds contact and bind or infuse the polymer layer. The device is made render-safe by inactivating the infused polymer layer, such as by heating to a temperature sufficient to inactivate biological agents on or in the analyte-infused polymer layer. The device can be stored in a substantially air-tight configuration for subsequent use in training, such as canine and/or or artificial detectors.

Abstract: Provided herein are methods of making a training aid for detecting a biohazard, and related devices and methods of using the device, including a canine training aid. The devices are made by positioning a polymer layer in proximity and physically separated from a biological material, so that volatile organic compounds contact and bind or infuse the polymer layer. The device is made render-safe by inactivating the infused polymer layer, such as by heating to a temperature sufficient to inactivate biological agents on or in the analyte-infused polymer layer. The device can be stored in a substantially air-tight configuration for subsequent use in training, such as canine and/or or artificial detectors.

Abstract: Provided herein are methods of making a training aid for detecting a biohazard, and related devices and methods of using the device, including a canine training aid. The devices are made by positioning a polymer layer in proximity and physically separated from a biological material, so that volatile organic compounds contact and bind or infuse the polymer layer. The device is made render-safe by inactivating the infused polymer layer, such as by heating to a temperature sufficient to inactivate biological agents on or in the analyte-infused polymer layer. The device can be stored in a substantially air-tight configuration for subsequent use in training, such as canine and/or or artificial detectors.

Abstract: Front and rear wheeled units of vehicle are connected together for articulated steering. Wheels on at least one unit are mounted for swivelling relative to the respective unit to provide kingpin steering in combination with articulation steering. A first embodiment has front and rear kingpin steering and articulation steering performed manually and independently of the each other. In a second embodiment, a steering integrator cooperates with actuators which control at least the articulation steering and kingpin steering of the front wheels to automatically integrate two types of steering so that a controlled relationship exists between an articulation angle of the front unit with respect to the rear unit, and swivel angles of the front wheels with respect to the front unit. A manual steering control, e.g. a steering wheel, controls actuation of the steering integrator.

Abstract: A seedling planter has a moveable platform with storage area for seedlings and a work area for a human operator. There is a power source for the planter. A mechanical planting system can plant seedlings and a conveyor introducing seedlings into the mechanical planting system.

Abstract: A planting machine for planting containerized seedlings from a moving vehicle comprising a planting tool that is pivotally supported on the vehicle. The planting tool comprises a resiliently mounted ground engaging foot, a ground penetrating probe, and a planting container advancing device having a passageway for containers. The probe is reciprocatably mounted relative to the container advancing device with means to provide horizontal displacement of the container advancing device when the probe is withdrawn such that the outlet of the container passageway is positioned over the hole made by the probe for receiving the planting container.

Abstract: A tree shear comprises a base with a tree receiving position. There is an undercutting blade mounted on the base for making a groove extending partway through a tree from one side of the tree and thereby inducing a bending of the tree trunk and putting under tension fibres in the tree trunk near the opposite side. There is a shear mounted on the base for then shearing the tree from the opposite side.