Abstract: A method for processing scanning electron microscope specimen is provided. The method comprises: providing a specimen to be observed; providing a carbon nanotube array comprising a plurality of carbon nanotubes; and pulling a carbon nanotube film from the carbon nanotube array, and laying the carbon nanotube film on a surface of the specimen, wherein the carbon nanotube film comprising a plurality of through holes.

Abstract: A computer-implemented method dynamically switches access plans for a query during concurrent query execution. The method includes receiving a first query configured to be processed by a database system. The method also includes generating, for the first query, an access plan for each of identified resource sets. The method includes determining a first set of available resources that represent an available capacity for the database system. The method further includes selecting a first resource set of the one or more resource sets, where the selecting is based on the first set of available resources being closest to the first resource set. The method also includes selecting, based on the first set of available resources, a first access plan of the one or more access plans. The method includes executing the first query and returning results of the first query to a source of the first query.

Abstract: The present disclosure discloses a recombinant varicella-zoster virus (VZV) vaccine, including a fusion protein formed by an amino acid sequence of an extracellular domain of a recombinant glycoprotein gE of a live attenuated VZV strain (OKA strain) gene and an Fc fragment of human immunoglobulin. The present disclosure further provides preparation and use of the fusion protein, a corresponding recombinant gene, a eukaryotic expression vector, etc. The fusion protein of the present disclosure has prominent immunogenicity and can induce the high-level expression of neutralizing antibodies in serum.

Abstract: Access usage of one or more shards of a set of shards of a database is determined. The set of shards includes a plurality of shards including a primary shard and one or more replica shards of the primary shard. A shard of the plurality of shards is selected based on the access usage, and a set of indexes is built for the shard that is selected. The set of indexes built for the shard that is selected is used for at least multiple shards of the plurality of shards.

Abstract: A computer-implemented method dynamically switches access plans for a query during concurrent query execution. The method includes receiving a first query configured to be processed by a database system. The method also includes generating, for the first query, an access plan for each of identified resource sets. The method includes determining a first set of available resources that represent an available capacity for the database system. The method further includes selecting a first resource set of the one or more resource sets, where the selecting is based on the first set of available resources being closest to the first resource set. The method also includes selecting, based on the first set of available resources, a first access plan of the one or more access plans. The method includes executing the first query and returning results of the first query to a source of the first query.

Abstract: A method, including: identifying static application features of an application; identifying resource access features of the application; labeling a translation lookaside buffer (TLB) miss threshold of a runtime feature of the application; determining utilization of larger pages during the runtime based on the TLB miss threshold; and setting the TLB miss threshold based on the determined utilization of the larger pages.

Abstract: Determination and provision of improved representations of program flow control are provided by a method that monitors execution of binary code of a program on a computer system. The monitoring includes monitoring manipulation(s) of call stack(s) maintained by the computer system for the execution of the binary code. The method, based on the monitoring, determines function call pattern(s) and branch pattern(s) exhibited by the execution of the binary code. The method identifies, from the binary code and using the determined function call pattern(s) and branch pattern(s), function calls and branches, relations between the function calls and branches, and function and variable names. The method also provides a representation of program flow control of the program using the identified function calls and branches, relations, and function and variable names.

Abstract: Determination and provision of improved representations of program flow control are provided by a method that monitors execution of binary code of a program on a computer system. The monitoring includes monitoring manipulation(s) of call stack(s) maintained by the computer system for the execution of the binary code. The method, based on the monitoring, determines function call pattern(s) and branch pattern(s) exhibited by the execution of the binary code. The method identifies, from the binary code and using the determined function call pattern(s) and branch pattern(s), function calls and branches, relations between the function calls and branches, and function and variable names. The method also provides a representation of program flow control of the program using the identified function calls and branches, relations, and function and variable names.

Abstract: A computer-implemented method, computer program product and computer system are provided. A processor receives an indication of sensitive data in one or more files. A processor updates at least one bit in the virtual address space for the one or more files indicated to have sensitive data. A processor, in response to a program accessing the one or more files, evaluates a respective virtual address for the one or more files. A processor, in response to the at least one bit in the respective virtual address for the one or more files, marks intermediate data generated by the program as sensitive data.

Abstract: A method of fabricating a refractive optical element on a substrate may provide less expensive and more compact optics for an X-ray system. The method includes coating the substrate with a resin and providing radiation to a portion of the resin to cause two photon polymerization of the resin. The method further includes forming, by two photon polymerization, a first surface of a polymer refractive optical element from the resin. The first surface is disposed along an optical axis of the refractive optical element and the first surface has a roughness of less than 100 nanometers. Further, the method includes forming, by two photon polymerization, a second surface of the polymer refractive optical element. The second surface is disposed along the optical axis of the refractive optical element and the second surface has a roughness of less than 100 nanometers.

Abstract: Antibodies that bind to connexin 43 hemichannels and inhibit, or activate, channel opening are provided. In certain aspects, methods for detecting or treating cancers with antibodies that activate Cx43 channel opening are also provided. Likewise, methods for treating inflammatory diseases (e.g., osteoarthritis) and neurological injuries (e.g., spinal cord injury) with antibodies that inhibit Cx43 channel opening are provided.

Abstract: Methods, systems and apparatus for correcting a result of a quantum computation.

Abstract: Methods, systems and apparatus for correcting a result of a quantum computation.

Abstract: Quantum computing systems and methods are provided. In one example, a quantum computing system includes a quantum system having one or more quantum system qubits and one or more ancilla qubits. The quantum computing system includes one or more quantum gates implemented by the quantum computing system. The quantum gate(s) are operable to configure the one or more ancilla qubits into a known state. The quantum computing system includes a quantum measurement circuit operable to perform a plurality of measurements on the one or more quantum system qubits using the one or more ancilla qubits. The quantum computing system includes one or more processors operable to determine a reduced density matrix for a subset of the quantum system based on a set of the plurality of measurements that include a number of repeated measurements performed using the quantum measurement circuit.

Abstract: Provided is a vehicle measurement system for an automatic conveyor. The measurement system includes: an information measurement unit, disposed at a position higher than the ready-for-loading vehicle and including two laser radars: a rear radar and a side radar; a voice prompt unit, configured to send a voice prompt; and a control unit; where when the ready-for-loading vehicle is approaching, the rear radar measures a distance between it and the ready-for-loading vehicle in real time as a predetermined parking distance; when a value of the predetermined parking distance is within a predetermined range, the control unit controls the voice prompt unit to send a voice prompt for parking; and after the ready-for-loading vehicle stops, the information measurement unit measures the distance between the ready-for-loading vehicle and the rear radar, carriage size information, and a deviation angle of a parking position of the ready-for-loading vehicle from the predetermined parking area.

Abstract: Quantum computing systems and methods are provided. In one example, a quantum computing system includes a quantum system having one or more quantum system qubits and one or more ancilla qubits. The quantum computing system includes one or more quantum gates implemented by the quantum computing system. The quantum gate(s) are operable to configure the one or more ancilla qubits into a known state. The quantum computing system includes a quantum measurement circuit operable to perform a plurality of measurements on the one or more quantum system qubits using the one or more ancilla qubits. The quantum computing system includes one or more processors operable to determine a reduced density matrix for a subset of the quantum system based on a set of the plurality of measurements that include a number of repeated measurements performed using the quantum measurement circuit.

Abstract: A method of fabricating a refractive optical element on a substrate may provide less expensive and more compact optics for an X-ray system. The method includes coating the substrate with a resin and providing radiation to a portion of the resin to cause two photon polymerization of the resin. The method further includes forming, by two photon polymerization, a first surface of a polymer refractive optical element from the resin. The first surface is disposed along an optical axis of the refractive optical element and the first surface has a roughness of less than 100 nanometers. Further, the method includes forming, by two photon polymerization, a second surface of the polymer refractive optical element. The second surface is disposed along the optical axis of the refractive optical element and the second surface has a roughness of less than 100 nanometers.

Abstract: Methods, systems and apparatus for correcting a result of a quantum computation.

Abstract: Methods, systems and apparatus for error correction of fermionic quantum simulation. In one aspect, a method includes representing a fermionic system as a graph of vertices and edges, where each vertex represents a fermionic system fermionic mode and each edge represents an interaction between two respective fermionic modes; allocating a qubit to each edge in the graph to form a qubit system; determining qubit operators that satisfy a set of fermionic commutation and dependence relations, where the qubit operators are non-uniform with respect to the graph vertices; determining stabilizer operators corresponding to products of quadratic Majorana operators on respective loops in the graph, where a common eigenspace of the defined stabilizer operators defines a code subspace that encodes states of the fermionic system to be simulated; and simulating the fermionic system by evolving the qubit system under a qubit Hamiltonian that includes the determined qubit operators and stabilizer operators.

Abstract: Methods, systems and apparatus for simulating physical systems. In one aspect, a method includes the actions of selecting a first set of basis functions for the simulation, wherein the first set of basis functions comprises an active and a virtual set of orbitals; defining a set of expansion operators for the simulation, wherein expansion operators in the set of expansion operators approximate fermionic excitations in an active space spanned by the active set of orbitals and a virtual space spanned by the virtual set of orbitals; performing multiple quantum computations to determine a matrix representation of a Hamiltonian characterizing the system in a second set of basis functions, computing, using the determined matrix representation of the Hamiltonian, eigenvalues and eigenvectors of the Hamiltonian; and determining properties of the physical system using the computed eigenvalues and eigenvectors.