Abstract: By constructing packaging or cushioning components with a cellulose-fiber foam and uniquely blending relatively longer fibers serving as mechanical structure with refined chemical fibers serving as a bonding mechanism for the relatively longer fibers together, a lower density, energy absorbing, and resilient cellulose-fiber foam is disclosed. Some cellulose-fiber foam components additional do not require stand-alone foaming agent or surfactant.

Abstract: This disclosure relates to slow- and controlled-release fertilizers, and more particularly to a device and a method for industrialized continuous and simplified preparing a urea-formaldehyde slow-release nitrogen fertilizer or a urea-formaldehyde-based slow- and controlled-release multi-nutrient fertilizer. Hydroxymethylurea is produced through the reaction extrusion of urea and formaldehyde. Through the self-ploycondensation of the hydroxymethylurea or the co-polymerization of the hydroxymethylurea and a modifier in a reactive extruder, the urea-formaldehyde slow-release nitrogen fertilizer or the urea-formaldehyde-based slow- and controlled-release multi-nutrient fertilizer is prepared.

Abstract: In a method for configuring documents for circulation, a document template and a plurality of field templates are created. The document template and the field templates are integrated to obtain an integrated document template. A workflow template is generated according to the integrated document template. A document entity is generated according to the integrated document template in response to a first user operation. The document entity is operated by a second user operation. A workflow entity derives from to the workflow template, the workflow entity including a plurality of node entities, and the node entities include a start node entity and an end node entity. The document entity is transferred from the start node entity to the end node entity according to the workflow entity. The method meets the requirements for general circulation of documents generated by a business with ever-increasing complexity.

Abstract: A method of producing a thermoplastic starch by an in-situ reactive extrusion plasticization process and a method for preparing a starch/polymer blend by an in-situ reactive extrusion plasticization and compatibilization process. In the method, a plasticizer reaction precursor (or a plasticizing compatibilizer reaction precursor) is mixed with starch to adhere to the surface of the starch or enter the starch to break the intermolecular and intramolecular hydrogen bonds of the starch. Then a mixture of the plasticizer reaction precursor (or the plasticizing compatibilizer reaction precursor) and starch is subjected to extrusion to produce the thermoplastic starch (or the starch/polymer blend), where the reaction precursor undergoes an in-situ reaction on the surfaces of the starch and in the starch to form a macro-molecular plasticizer (or a plasticizing compatibilizer) to plasticize starch or provide plasticizing and compatibilizing effect on the starch/polymer blend.

Abstract: Disclosed is a method for preparing a nitrogen-rich or nutritious straw-based slow-release fertilizer through In-Situ straw modification/reactive extrusion integrated continuous process. In the method, the liquid reaction precursor of a nitrogen-containing biodegradable slow-release fertilizer is mixed with crop straw to obtain a reaction mixture, or the liquid reaction precursor of a nitrogen-containing biodegradable slow-release fertilizer, crop straw and a soluble fertilizer are mixed to obtain a reaction mixture. The reaction mixture is subjected to extrusion in a screw extruder to produce the nitrogen-rich or nutritious straw-based slow-release fertilizer.

Abstract: Disclosed is producing recombinant SARS-CoV-2 spike protein in a pre-fusion state, using furin knock out or knockdown mammalian cells (such as HEK293, CHO or other mammalian cells) and using them to generate antibodies and related binding agents. The antibodies/binding agents can be used in SARS-CoV-2 detection assays or in diagnosis of active or prior infection with SARS-CoV-2; in prophylaxis or as a therapeutic; or for prophylactic or therapeutic use against coronaviruses related to SARS-CoV-2.

Abstract: The present invention discloses a highly efficient and environment-friendly reactive extrusion integrated continuous preparation process for a biodegradable polymeric multi-nutrient elements nano slow/controlled-release fertilizer and a biodegradable polymeric multi-nutrient elements nano slow/controlled-release fertilizer prepared by the process consisting of urea-formaldehyde macromolecular chains and nano-phosphate. Firstly preparing a methylolurea solution, and then feeding the same into a reactive extrusion integrated machine, adding a phosphate, starting the reaction unit of the reactive extrusion integrated machine to carry out the reaction, and simultaneously starting the vacuumizing devolatilization apparatus to remove moisture from the reaction system; after completing the reaction, starting the extrusion unit of the reactive extrusion integrated machine, extruding to obtain a strip-shaped product, and drying and granulating the same to obtain a finished product.

Abstract: Disclosed is producing recombinant SARS-CoV-2 spike protein in a pre-fusion state, using furin knock out or knockdown mammalian cells (such as HEK293, CHO or other mammalian cells) and using them to generate antibodies and related binding agents. The antibodies/binding agents can be used in SARS-CoV-2 detection assays or in diagnosis of active or prior infection with SARS-CoV-2; in prophylaxis or as a therapeutic; or for prophylactic or therapeutic use against coronaviruses related to SARS-CoV-2.

Abstract: The present disclosure provides a triple-wafer dual-band fluorescent zoom adapter for an endoscope, relating to the technical field of biomedicine. The triple-wafer dual-band fluorescent zoom adapter for an endoscope includes a front fixing group, a zooming group, a compensating group and a rear fixing group which are sequentially arranged along an optical axis from an object side to an image side, where an infrared light path and a visible light path are arranged behind the rear fixing group; the zooming group can move along the optical axis to change a focal length; and the compensating group can move along the optical axis to perform correction and focusing of image surface changes accompanying zooming. The present disclosure improves the definition and contrast of imaging.

Abstract: A device for determining degradation rate of biodegradable polymers in soil, including a micro compressed air pump, a first CO2 absorption vessel filled with dry soda lime or an aqueous strong alkali solution, a CO2 indicator vessel filled with a barium hydroxide solution, a hollow leaching device, a second CO2 absorption vessel and a third CO2 absorption vessel connected in sequence through connecting pipes. A top of the hollow leaching device is provided with an end cover. An external water distributor filled with a leaching solution and a mechanical stirring device is arranged above the end cover. The external water distributor is in communication with an inner cavity of the hollow leaching device through a pipeline. A stirring shaft of the mechanical stirring device extends into the inner cavity. A stirring shaft is provided with a stirring paddle.

Abstract: A data obtaining method and apparatus. The method comprises: determining address information of data to be obtained; judging whether a disk corresponding to the address information of the data to be obtained is a damaged disk or not; if the disk corresponding to the address information of the data to be obtained is not a damaged disk, obtaining the data to be obtained according to the address information of the data to be obtained to obtain current data; if the disk corresponding to the address information of the data to be obtained is a damaged disk, determining the address information of next data to be obtained, and returning to the step of judging whether a disk corresponding to the address information of the data to be obtained is a damaged disk or not.

Abstract: Disclosed is producing recombinant SARS-CoV-2 spike protein in a pre-fusion state, using furin knock out or knockdown mammalian cells (such as HEK293, CHO or other mammalian cells) and using them to generate antibodies and related binding agents. The antibodies/binding agents can be used in SARS-CoV-2 detection assays or in diagnosis of active or prior infection with SARS-CoV-2; in prophylaxis or as a therapeutic; or for prophylactic or therapeutic use against coronaviruses related to SARS-CoV-2.

Abstract: Disclosed is producing recombinant SARS-CoV-2 spike protein in a pre-fusion state, using furin knock out or knockdown mammalian cells (such as HEK293, CHO or other mammalian cells) and using them to generate antibodies and related binding agents. The antibodies/binding agents can be used in SARS-CoV-2 detection assays or in diagnosis of active or prior infection with SARS-CoV-2; in prophylaxis or as a therapeutic; or for prophylactic or therapeutic use against coronaviruses related to SARS-CoV-2.

Abstract: The invention relates to the field of preparing biodegradable polymer slow/controlled release composite, in particular to a biodegradable polymer slow/controlled release binary composite urea-formaldehyde/poly(butylene succinate) and a biodegradable polymer slow/controlled release ternary nanocomposite urea-formaldehyde/poly(butylene succinate)/potassium dihydrogen phosphate. The following steps are included: uniformly mixing two components poly(butylene succinate) and methylol-urea or three components poly(butylene succinate), methylol-urea and potassium dihydrogen phosphate, and then extruding the resulting mixture by an extruder, and the biodegradable polymer slow/controlled release composite urea-formaldehyde/poly(butylene succinate) containing nutrient N and the biodegradable polymer slow/controlled release nanocomposite urea-formaldehyde/poly(butylene succinate)/potassium dihydrogen phosphate containing nutrients of N, P and K are obtained respectively.

Abstract: A data obtaining method and apparatus. The method comprises: determining address information of data to be obtained (S101); judging whether a disk corresponding to the address information of the data to be obtained is a damaged disk or not (S102); if the disk corresponding to the address information of the data to be obtained is not a damaged disk, obtaining the data to be obtained according to the address information of the data to be obtained to obtain current data (S103); if the disk corresponding to the address information of the data to be obtained is a damaged disk, determining the address information of next data to be obtained, and returning to the step of judging whether a disk corresponding to the address information of the data to be obtained is a damaged disk or not (S104). According to the method, undamaged data in a disk array can be obtained when a ultra-redundant bad disk occurs.

Abstract: Disclosed is producing recombinant SARS-CoV-2 spike protein in a pre-fusion state, using furin knock out or knockdown mammalian cells (such as HEK293, CHO or other mammalian cells). The pre-fusion state SARS-CoV-2 spike protein can be used as an antigen to generate antibodies/binding molecules for use in SARS-CoV-2 detection assays or in diagnosis of active or prior infection with SARS-CoV-2; as a therapeutic to interfere with SARS-CoV-2 cellular binding; to generate antibodies/binding molecules to SARS-CoV-2 for use in therapy; or, as a vaccine for generating immunity to SARS-CoV-2; or for prophylactic or therapeutic use against related coronaviruses.

Abstract: In some examples, a database management node updates object metadata with indicators of access frequencies of a plurality of objects in a data store that is remotely accessible by the database management node over a network. The database management node selects a subset of the plurality of objects based on the indicators, and caches the subset in the local storage.

Abstract: Provide are a liquid crystal compound represented by formula I, and a liquid crystal mixture comprising the compound A lateral trifluoromethyl-containing liquid crystal compound having the structural characteristics of Formula I not only has a negative dielectric anisotropy (??), an appropriate optical anisotropy (?n), a higher clearing point (CP), a prominent low-temperature miscibility with other liquid crystals, and a low rotary viscosity (?1), but also has a good stability to UV and high temperatures, particularly, a negative dielectric anisotropy. Same can be applied to the formulation of liquid crystal compositions of positive and negative types, and it is particularly prominent that same has the advantages of a good solubility at low temperatures and a high transmittance.

Abstract: The invention relates to the field of slow/controlled release fertilizer, in particular to a urea-formaldehyde-based multi-nutrient slow/controlled release fertilizer and a preparation method thereof. The urea-formaldehyde-based multi-nutrient slow/controlled release fertilizer comprises ammonium polyphosphate, inorganic silica gel and urea-formaldehyde, wherein the phosphorus-oxygen double bond of ammonium polyphosphate can at least form hydrogen bond linkage with a urea-formaldehyde molecule chain, the hydroxyl group of the inorganic silica gel can at least form hydrogen bond linkage with the urea-formaldehyde molecular chain, and ammonium polyphosphate, inorganic silica gel and urea-formaldehyde together form a hydrogen bond associated polymer network structure.

Abstract: The present invention discloses a spatial posture adjusting device for an optical axis of a microscopic monitoring system for a cellular fermentation tank. The adjusting device includes a base frame, where the base frame is fixedly provided with an up/down adjustment table; the up/down adjustment table is slidably connected to a load plate; the load plate is fixedly provided with a microscope adjustment mechanism and an illumination rotation adjustment mechanism in sequence; the illumination rotation adjustment mechanism includes a base; the base is fixedly connected to a first support frame; the first support frame is fixedly provided with an illuminator; the microscope adjustment mechanism includes a second support frame; the second support frame is fixedly provided with a clamping device; the clamping device is fixedly provided with a microscope device; the illumination rotation adjustment mechanism is fixedly connected with a mobile platform.