Abstract: In methods according to some embodiments of the present disclosure for interplanting a primary crop and an energy crop, the present disclosure includes methods for preparing a plantation site for planting the energy crop. Plantation sites according to the disclosure may include a primary crop planted in a first row and in a second row, the first row being separated by an intermediate row. The intermediate row is divided into a center portion and two side portions (a first side portion and a second side portion). Methods according to embodiments of the disclosure include the steps of lifting a soil and plantation debris mixture from the intermediate area, redepositing a soil component of the soil and plantation debris mixture primarily into the center portion, and redepositing a plantation debris component of the soil and plantation debris mixture primarily into at least one of the two side portions.
Abstract: At least one image device proximate a second conveyor is disposed a predetermined distance in front of chip heads. The at least one image device can image a log and capture the actual log position on a sharp chain before its being engaged by chip heads. A computing device is coupled to the at least one image device to receive data including the actual log position information. The computing device compares the actual log position to a preferred log position solution so as to check whether a log deviates from its expected position. If any position deviation exists, the computing device may send instructions to adjust the positions of the chip heads and saws to ensure that a log is correctly positioned relative to the chip heads and saws, whereby correcting log position errors and eliminating transport accuracy losses.
Abstract: Processing of a cant may include determining a rotational orientation about a longitudinal axis of the cant that optimizes a recovery from the cant from subsequent sawing operations. Such may include optimizing a width of a board that will be produced dependent on the particular rotational longitudinal orientation. Such may include determining a surface area of a board which would be produced, a thickness of a board that would be produced, and/or a volume of a board that would be produced. Such may include accounting for any premium associated with various width categories in which a board that would be produced would fit. Such may account for any premium associated with grade or quality of a board that would be produced. A corresponding signal may provide information to a human operator and/or automated machinery to orient the cant in an optimized orientation.
Abstract: Soil treating systems and shearing assemblies for use in forestry operations are described. Embodiments of soil treating systems include a movement assembly having a front end and a back end, a shearing assembly mounted on the front end of the movement assembly, and leveling assembly mounted on the back end of the movement assembly. In some embodiments shearing assemblies are inverted V-type shearing assemblies. Further aspects described are directed towards methods for using soil treating systems and shearing assemblies for preparing land for interplanting an energy crop with a primary crop.
Abstract: Meltblown lyocell fibers incorporating polyolefinic hydrophobic polymers are disclosed. The polymer is distributed fairly uniformly within the fiber and exists as approximately one to two micron diameter domains. The fibers have a high hemicellulose level, show reduced water retention values and have varying diameters depending on processing conditions. The fibers have a brightness of at least 60.
Abstract: Embodiments of sized fluff pulp, or fluff pulp treated with a sizing agent, have desirable characteristics for one or more intended applications. The sized fluff pulp can be debonded or non-debonded. In several examples, the one or more desirable characteristics includes a reduction in its absorption characteristics (e.g., the pulp is less hydrophilic). Some characteristics improved by the sized fluff pulp include, but are not limited to, soak and drip capacity and wicking rate. In several examples, the sized fluff pulp are less hydrophilic but retain or exhibit other desirable characteristics for producing non-wovens, including low fiberization energy and fiberized knot percentage.
Abstract: The present disclosure relates to a pick-up and delivery system including a pick-up assembly and a delivery assembly. The pick-up assembly includes a robotic arm, a pick-up device rotatably mounted on the robotic arm, and a first vacuum pressure supply port operably connected to the pick-up device. The delivery assembly includes an insertion device and a second vacuum pressure supply port. The insertion device may include an insertion member and a release assistance rod arranged inside the insertion member. The release assistance rod is moveable between an extended position and a retracted position. When the release assistance rod is in the extended position, a proximal end extends beyond an end of the insertion member. Further aspects are directed towards methods for grasping and releasing an object with a pick-up and delivery system.
Type:
Grant
Filed:
June 8, 2011
Date of Patent:
August 5, 2014
Assignee:
Weyerhaeuser NR Company
Inventors:
Fredrick T. Rubatino, Michael W. Teodoro
Abstract: A fiber-cement product which includes a treated cellulose wood pulp fiber. The fiber is treated with fibrillated carboxymethyl cellulose or a carboxyethyl cellulose and poly(diallyldimethylammonium chloride). The fiber can be bleached or partially bleached, refined or unrefined or a mixture of refined and unrefined fiber.
Type:
Grant
Filed:
May 22, 2013
Date of Patent:
July 29, 2014
Assignee:
Weyerhaeuser NR Company
Inventors:
S. Ananda Weerawarna, Harshadkumar M. Shah
Abstract: A manufactured seed is provided. The manufactured seed includes a seed shell housing a nutritive media and a restraint disposed within the seed shell. The restraint includes a cavity. The manufactured seed also includes an embryo disposed within the cavity and a fill material disposed within the cavity. The manufactured further includes a seal disposed on the seed shell to seal the embryo within the seed shell.
Type:
Grant
Filed:
October 1, 2008
Date of Patent:
July 29, 2014
Assignee:
Weyerhaeuser NR Company LLP
Inventors:
Jeffrey E. Hartle, William C. Carlson, Antony R. Shoaf
Abstract: A system and method for identifying stands or portions thereof that are not growing as expected. In one embodiment, a computer system compares a measured leaf area index of a stand that is determined from remotely sensed data to an expected leaf area index. The computer system identifies stands or portions of stands where the measured leaf area index is greater than the expected leaf area index and/or stands or portions of stands where the measured leaf area index is less than the expected leaf area index. In one embodiment, the comparison is used to identify stands or portions thereof where silviculture treatments may be necessary.
Abstract: The invention relates to a process for preparing a composition comprising 10 to 45% of the total solids weight lignin, polyacrylonitrile or a polyacrylonitrile copolymer, and a solvent to form a lignin-based polyacrylonitrile-containing dope and the resulting products. The dope can be processed to produce fibers, including precursor, oxidized and carbonized fibers. The oxidized fibers are of value for their flame resistant properties and carbonized fibers are suitable for use in applications requiring high strength fibers, or to be used to form composite materials.
Abstract: A programmed computer or non-transitory computer readable storage media has instructions that are executable by a processor to identify LiDAR data points associated with items of vegetation or other objects. Each LiDAR data point is tested to determine if it lies within the value of a closed surface defined for higher LiDAR points. If so, the LiDAR point is grouped with the LiDAR points associated with a previously identified item of vegetation. If not, a new item of vegetation is identified.
Abstract: The invention provides methods of preventing flooding of a cavity within a shoot restraint of a manufactured seed by lowering the water potential of the nutritive media relative to the water potential of a plant embryo disposed within the cavity.
Abstract: Lignin in particulate form is provided. The lignin particles have relatively large diameter and relatively low density, compared to known lignin particles. The lignin is formed from black liquor using supersaturation of an ionic solution. Methods of forming the lignin particulate are also provided.
Abstract: A programmed computer system estimates the age of trees from a number of remotely sensed images of an area of interest. Vegetation Index (V.I.) values are determined for pixel locations in the number of images. The V.I. values are analyzed to find a V.I. value that correlates with a known age of a tree. Once the date of the image that produced the V.I. value is known, the current age of the trees that correspond to the pixel location is determined.
Abstract: A method of separating lignin from black liquor from a pulp mill by adjusting the pH of the black liquor is provided. Various additional steps can be used to further process the separated lignin, including washing, drying, and/or comminuting. In certain embodiments, solvents and byproducts are recycled so as to reduce waste and maintain chemical balance within a commercial lignin production facility.
Abstract: The disclosure is directed generally a biomass conditioning system and methods for conditioning biomass to remove undesirable material for further processing and applications. In some embodiments, the disclosure includes a biomass conditioning system including a conditioning tank, a water input device, a biomass input device, a containment device, a spillway, and a moving separation device. In some embodiments, methods according to the disclosure include pumping water into a conditioning tank, depositing biomass into the conditioning tank, allowing the biomass to soak in the water and separate into a bark portion and a non-bark portion, allowing the bark portion to float to a water line, containing the bark portion to one side of the conditioning tank, moving the bark portion into a bark storage area, separating the non-bark portion into a biomass portion and a debris portion, and moving the conditioned biomass portion into a storage area.
Abstract: The present disclosure includes a wood composite made from cellulosic particles, a binder, and a water-repelling agent. In some embodiments, the water repelling agent includes aliphatic compounds having a molecular distribution between about 16 and about 36 carbon atoms per molecule. In some embodiments, the water-repelling agent has an average molecular weight of about 220 to about 350 Daltons (solids portion). The water-repelling agent may be applied as a wax emulsion or in neat wax form. The present disclosure also relates to a method for manufacturing a wood composite as described above.
Type:
Grant
Filed:
March 31, 2009
Date of Patent:
June 10, 2014
Assignee:
Weyerhaeuser NR Company
Inventors:
Jack G Winterowd, Travis E. Bjorkman, Erik M Parker