Abstract: A method for capturing ancient DNA of a wooden cultural relic, sequentially includes the following steps: sampling, removing exogenous DNA contamination on the inner part and the outer surface of a sample, and effectively obtaining the ancient DNA of the wooden cultural relic through vacuum freeze-drying dehydration, sample grinding, rinsing, cell lysis, DNA genome enrichment and hybridization and capturing. The method focuses on precise capture of the ancient DNA of the wood cells of the wood cultural relic, not only breaks through the problem that effective acquisition of the DNA of the wood cultural relic is difficult to realize by a conventional wood DNA extraction method, but also provides possibility for analysis and utilization of the ancient DNA with typical characteristics of serious exogenous contamination, low DNA content, high degradation, extensive damage and the like.

Abstract: An air compressor apparatus is disclosed that includes an air tank. A first compressor assembly can be fluidly coupled to the air tank, the first compressor assembly including a first head unloader valve. A second compressor assembly can be fluidly coupled to the air tank, the second compressor assembly including a second head unloader valve. A control unit can be electrically coupled to the first and second compressor assemblies, the control unit operable to control the operation of the first and second compressor assemblies. During startup, the first and second air compressor assemblies can be configured to draw less than 20 amps of current combined from a single 120 volt power source. The first and second compressor assemblies can each be dual piston compressor assemblies.

Abstract: An air compressor apparatus is disclosed that includes an air tank. A first compressor assembly can be fluidly coupled to the air tank, the first compressor assembly including a first head unloader valve. A second compressor assembly can be fluidly coupled to the air tank, the second compressor assembly including a second head unloader valve. A control unit can be electrically coupled to the first and second compressor assemblies, the control unit operable to control the operation of the first and second compressor assemblies. During startup, the first and second air compressor assemblies can be configured to draw less than 20 amps of current combined from a single 120 volt power source. The first and second compressor assemblies can each be dual piston compressor assemblies.

Abstract: A process for producing nano veneers generally involving: placing a veneer to be treated in a vacuum vessel; adding a nano carbon powder and nano silicon dioxide suspension in the vacuum vessel; reducing the pressure in the vessel over a first period of time; increasing the pressure in the vessel; letting the contents of the vessel rest over a second period of time. The veneer may optionally be subjected to ultrasonic treatment, ultraviolet solidification treatment, or subsequent pressurization treatments to obtain the final nano veneer product. As a result, veneer manufactured using embodiments of the present invention will have the advantages of high strength, wear resistance, pollution resistance, acid and alkali resistance, water segregation and decay resistance.

Abstract: A composite panel and its manufacture are described. Ultra-thick bamboo/wood and solid wood composite panels are comprised of core board, surface board and back board. The core board is composed of ultra-thick peeling veneers with thickness of 6 to 12 mm. Both surface board and back board are made of bamboo or wood. The core board comprises several layers of the ultra-thick veneers, and the veneers of contiguous layer are assembled with parallel structure. A glue layer is arranged between contiguous veneers; adhesive in the glue layer is aqueous macromolecule isocyanate adhesive. The ultra-thick veneers of the core layer are the veneers with stress degradation treatment, i.e., punctate or line segment cracks are formed along the grain of the veneer's loose side in each layer.

Abstract: The present invention provides ultra-thick bamboo/wood and solid wood composite panels, comprising core board, surface board and back board; said core board is composed of ultra-thick peeling veneers with the thickness of 6 to 12 mm, both said surface board and back board are made of bamboo or wood; said core board comprises several layers of said ultra-thick veneers, and the veneers of contiguous layer are assembled with parallel structure; glue layer is arranged between contiguous said veneers, the adhesive in the glue layer is the aqueous macromolecule isocyanate adhesive; said ultra-thick veneers of the core layer are the veneers with stress degradation treatment, i.e., punctate or line segment cracks are formed along the grain of said veneer loose side in each layer. The glue spread amounts of said composite panels are obviously less than that of the existing composite panels with the same thickness, and the composite panels are without warping or deformation.

Abstract: Natural wood sandwiched engineered flooring utilizes all natural wood as the raw material which is made into several components which are combined to make this product. The components are a single or multilayer top veneer bottom or base layer and a middle layer. The four sides of the natural wood sandwiched engineered flooring strip consist of either a tongue and a groove or an interlocking system. The middle layer consists of two parallel solid wood strips, and located perpendicular to and between the parallel solid wood strips are small pieces of soft wood, which are glued together. The small soft wood pieces can be of fast growing soft wood, and as such saves treasured hardwood lumber. The production cost of the raw material is much lower than other types of engineered flooring. Further, an enhanced stabilization of the hardwood flooring is provided which is more suitable for radiant heat.

Abstract: An electrical power strip includes a housing, an AC power source (e.g. a male plug or power cord), an AC outlet, a converter, and a 12 VDC outlet. The AC outlet and the converter receive power from the AC power source. The converter converts the AC power (e.g. 120 VAC) to 12 VDC and supplies the converted power to the 12 VDC outlet, which may be a cigarette lighter outlet. The housing exterior defines a cradle to receive a 12 VDC device. A handle is also included on the power strip.

Abstract: A decorative device, such as a cornice, for crowing a variety of architectural structures also having modular and interchangeable components is disclosed. In one embodiment, a cornice comprises a horizontal base unit having a face section, a top and a bottom, and one or more interchangeable decorative modules. A decorative centerpiece for the cornice is also disclosed. Additionally, the disclosure includes novel means for attaching particular components to one another. In the preferred embodiments, the components are wood.