referring now to the figures , wherein the components are labeled with like numerals throughout the several figures , and initially to fig1 - 3 , one exemplary configuration of a coring system 10 is illustrated , which generally includes a vertical portion 12 from which a horizontal portion 14 extends . a corer 16 extends vertically downward from a distal end of the horizontal portion 14 . as described herein , the terms “ vertical ” and “ horizontal ” are intended to be relative terms to describe the configuration illustrated ; however , it is understood that the system and its components can be tilted , angled , or otherwise arranged relative to each other in operation to access bales of material that are to be sampled . it is further understood that while the vertical and horizontal portions can be arranged to be perpendicular to each other , these portions can instead be arranged at an angle greater or less than 90 degrees relative to each other . referring also to fig4 - 6 , the corer 16 generally comprises an elongated outer tube 18 and an elongated inner tube 20 . the outer and inner tubes 18 , 20 are arranged so that air can flow freely between them , so that a steady air supply can convey cut material ( i . e ., a core of material ) to a destination , as is described below . the corer 16 is the component of the coring system 10 that actually contacts the material to be sampled , and in an embodiment of the invention , the corer 16 is rotatable to provide for easier penetration of the bale material . the speed of rotation of the corer can be controlled remotely via electronic controls and / or can have physical switches or components that can be adjusted or set to provide for a desired rotation speed . inner tube 20 includes a cutting tip 22 that extends from its distal end 26 . as shown , the cutting tip 22 includes a tapered outer surface 24 that tapers from a larger diameter to a smaller diameter when moving toward its distal end 26 . such a taper is optional , and it is contemplated that the tip may instead have walls that are parallel to each other , such as in a cylindrical configuration , for example . the tip 16 may further be provided with at least one slot 28 , each of which extends in a longitudinal direction and includes an open portion at the distal end 26 of cutting tip 22 . the surfaces of the distal tip 16 between adjacent slots 28 define the cutting surfaces of the cutting tip that will be used to penetrate the bale material . as shown , the distal end 26 includes a generally circular periphery and is designed to have a diameter or outer periphery that is similar to the desired diameter of a core that it will be used to remove from a bale . with a circular shape for the distal end 26 , the core that is removed from the bale will be generally cylindrical and will have a length that is approximately the same as the distance that the corer will be inserted into the bale . distal end 26 may alternatively have a shape other than circular , such that the end may instead be oval , elliptical , square , or irregularly shaped . in such cases , it is possible for the corer 16 to vibrate or otherwise move in a repetitive manner to allow the corer 16 to penetrate the bale . the inner tube 20 extends from its distal end 26 in a proximal direction toward the horizontal member , and includes a proximal end 30 . proximal end 30 is hollow and includes an opening that communicates with other components of the system 10 . in particular , the proximal end 30 of inner tube 20 is connected either directly or indirectly to a transport tube 32 , an exemplary configuration of which is illustrated in fig1 - 3 . the tube 32 has a diameter that is at least as large as the core of material that can be cut by the cutting tip 22 . in this way , a core of material that is cut by the corer will be held within the length of the corer 16 until it is desired to move it to another location , such as testing location . at the testing location , a vacuum can pull the core of material from the corer 16 into the transport tube 32 . the size and shape of the tube should therefore be configured so that the core of material can move freely through the length of the tube 32 . transport tube 32 extends along the length of the horizontal portion 14 of the system 10 , and can extend beyond the area where it intersects with the vertical portion 12 . the transport tube 32 can be provided with an overall length and path that allows the core of material to move to a desired area in which it will be tested . thus , the strength of the vacuum will generally be sufficient to pull the core along the desired length of the tube 32 at a desired speed that will not damage the core . transport tube 32 can include one or more rigid segments ( e . g ., stainless steel tubing segments ) and / or one or more flexible segments ( e . g ., flexible hose material segments ). in an exemplary embodiment , the transport tube 32 includes a combination of straight segments made of a rigid tube material and curved segments made of a flexible , hose - like material , such as synthetic rubber or plastic that may optionally be reinforced with various materials to help the hose segment to maintain a desired shape and curvature . the curvature of any curved segments of the transport tube 32 are configured to be able to accommodate a certain specified length of a core of material that will be transported through it . in operation , the coring system 10 is used for sampling biomass from bales of biomass material and transporting those cores or samples from the bales sitting on flatbed truck trailers to a lab or other analysis area for testing . the systems of the invention can maintain the biomass samples within a pneumatic transport or conveyance tube 32 for the entire time from the insertion of the probe or corer 16 into the biomass to the receipt of the biomass sample or core by the testing facility . the corer 16 of the system is therefore compatible with pneumatic conveyance of the material , which is accomplished by the positioning of the inner tube 20 within the outer tube 18 . at least a slight gap is provided between the outer and inner tubes 18 , 20 in order to provide a steady and continuous supply of air at the cutting tip 22 to allow the removed core of material to be conveyed to a desired location . that is , the gap between the inner and outer tubes allows air to more freely to provide a steady air supply , which in turn allows the core of material to be conveyed to its final destination . an embodiment of a coring system 10 of the invention includes a rotating corer 16 that is activated by a hydraulic motor . the end of the rotating corer 16 houses a tip that is specifically configured for cutting and penetrating a bale of biomass material . the tip may be removably affixed to the end of the corer , such as via a threaded connection , so that it can be easily removed and replaced , as desired , such as for replacement or sharpening of the cutting teeth at the distal end . the rotating corer 16 can be held in place by pillow block bearings , and the assembly can be attached to a hydraulically controlled arm that allows a remote operator to position the corer 16 over a bale that is ready to be tested . the arm is then lowered while the corer 16 continues to rotate , thereby allowing the rotating corer 16 to penetrate the biomass material bale . as the corer 16 penetrates the biomass bale , the biomass is loosened and a pneumatic airstream is able to remove the biomass material via vacuum . the material is then moved to a transport line and cyclone to a technician who can then perform testing and analysis on the removed core of biomass material . with such a system , it is possible to remotely sample a biomass bale and deliver the material to a technician that is located in another nearby location , such as a scale house . in order to utilize a coring system , such as one of the embodiments of such a system described above , a coring system is provided in an area where truckloads with bales of biomass are transported . although biomass bales are commonly transported on the back of a flatbed of a truck , it is possible for the bales to be presented to the coring system in a number of different ways . for an example , bales can be transported in the back of an enclosed truck , or bales can be removed from a truck via a means of transporting bales , such as a conveyance system , for example , and moved into the area in which the coring system can be used for sampling the bales . the desired location or locations on the bale from which one or more material samples are to be removed are identified , and the coring system and / or the bale locations can be adjusted , if necessary , so that the tip of the corer is able to contact and penetrate the bale at the desired location ( s ). the corer is then activated so that it can begin to rotate , such as by an operator or by an automatic control system , and then its movement is controlled by the same or a different operator in order to force the cutting tip into the biomass bale . the specific systems and mechanisms used to control the movement of the corer can vary , but may include a touch - screen panel , one or more joysticks , switches , slides , buttons , combinations of various control mechanisms , and the like . the rotating corer can then be lowered or moved in another direction toward the bale until the corer penetrates the biomass material bale by a desired amount . as the corer penetrates the bale , the biomass is loosened and a core of biomass material is created that is enclosed within the corer . the corer can penetrate up to 20 inches deep , for example . a pneumatic airstream removes the biomass material core via vacuum and moves it into the transport line or hose . the core of material can then be moved along the transport line to a location where a technician can access the core for analysis thereof . the above process can be repeated as many times as is desired for a particular bale by moving the coring system until the corer is positioned adjacent to each desired testing location . while biomass is discussed throughout the description of the coring systems of the invention , it is understood that the coring systems can alternatively be used with other materials , such as other materials provided in bale form and / or materials configured in different forms than bales . the present invention has now been described with reference to several embodiments thereof . the entire disclosure of any patent or patent application identified herein is hereby incorporated by reference . the foregoing detailed description and examples have been given for clarity of understanding only . no unnecessary limitations are to be understood therefrom . it will be apparent to those skilled in the art that many changes can be made in the embodiments described without departing from the scope of the invention . thus , the scope of the present invention should not be limited to the structures described herein , but only by the structures described by the language of the claims and the equivalents of those structures .