Abstract: The present disclosure belongs to the technical field of wastewater treatment, and discloses an electrochemical nitrogen and phosphorus removal device and a method.

Abstract: The present disclosure describes a metal-oxide-semiconductor field-effect transistor (MOSFET) device. The MOSFET device includes a first-type substrate, a deep-second-type well in the first-type substrate, a first-type well over the deep-second-type well, and a second-type well over the deep-second-type well. The second-type well and the deep-second-type well form an enclosed space that includes the first-type well. The MOSFET also includes an embedded semiconductor region (ESR) in a vicinity of the enclosed space. The ESR includes a dopant concentration lower than at least one of a dopant concentration of the first-type well, a dopant concentration of the second-type well, and a dopant concentration of the deep-second-type well.

Abstract: A method for constructing an n-qubit fault tolerant encode for any k-qubit quantum gate M, in any given quantum code [n, k, C], comprising: choosing a number n?k of independent spinors Sr from the first stabilizer C and a first ordered set SC consists of the independent spinors Sr; choosing a number n?k of independent spinors ?r from a second stabilizer ? in the intrinsic coordinate and a second ordered set ?r consists of the independent spinors ?r consist; implementing an encoding Qen, wherein the encoding Qen converts the first ordered set SC to the second ordered set S?, wherein the encoding Qen is a sequential product provided by sequential operations of a number n?k of unitary operators Qr; wherein each of the unitary operator Qr is composed of a single s-rotation or a product of two s-rotations; and wherein the encoding Qen converts and maps the rth independent spinor Sr in the first ordered set SC to the rth independent spinor ?r in the second ordered set S? correspondingly; a fault tolerant action Û i

Abstract: The method of constructing QAP-based Homomorphic Encryption (HE) in the semi-public setting is introduced, which comprises: encryption, computation, and decryption. The data receiver produces a semi-public key Keys-pub. The data provider can encode his k-qubit plaintext |x to a k-qubit ciphertext |?en=QP|x via a k-qubit invertible operator QP randomly generated by Keys-pub. From the provider, the message En(?p) of QP encoded by a cryptosystem Gcrypt in Keys-pub is transmitted to the receiver through a small-resource communication channel and the ciphertext |?en is conveyed to the cloud. The receiver creates the instruction of encoded computation Uen=PMQP and transports to the cloud, where M is the required k-qubit arithmetic operation, P a k-qubit permutation, and a k-qubit operator to mingle with M. According the instruction, the cloud performs the encrypted evaluation Uen|?en and transfer to the receiver.

Abstract: A public-key scheme of Homomorphic Encryption (HE) in the framework Quotient Algebra Partition (QAP) comprises: encryption, computation and decryption. With the data receiver choosing a partition or a QAP, [n, k, C], a public key Keypub=(VQen, Gen?) and a private key Keypriv=†P† are produced, where VQen is the product of an n-qubit permutation V and an n-qubit encoding operator Qen, Gen? an error generator randomly provides a dressed operator ?=V†EV spinor error E of [n, k, C]. Then, by Keypub, the sender can encode his k-qubit plaintext Ix) into an n-qubit ciphertext |?en, which is transmitted to the cloud. The receiver prepares the instruction of encoded computation Uen=PV†Qen† for a given k-qubit action M and sends to cloud, where is the error-correction operator of [n, k, C], =I2n?k?M the tensor product of the (n?k)-qubit identity I2n?k and M , and V†Q†en and P the complex-transposes of VQen and †P† respectively.

Abstract: A method of constructing a procedural threshold in quotient algebra partition-based fault tolerance quantum computation, which is based on the framework of quotient algebra partition (QAP) applied in the fault tolerance quantum computation (FTQC), wherein an n-qubit fault tolerant encode of a k-qubit quantum gate M, is feasible to a threshold, wherein the method comprises: preparing a quantum code, with a stabilizer; creating an n-qubit encoding, in the quantum code, and obtaining an n-qubit fault tolerant encode of M; factorizing each encoded component, of this n-qubit fault tolerant encode; and producing a detection-correction operator by placing n-k ancilla qubits with the original system of n qubits, wherein the detection-correction operator comprises a conditional detection operator and a conditional correction operator to remove r-qubit spinor error.

Abstract: The present inventive concept discloses a method of designing a one-way computational system in QAP-based homomorphic encryption applied to the n-qubit encode operations of a k-qubit action M for public-key and semi-public-key schemes respectively, n?k, wherein the method comprises: preparing a tensor-product operator =I2n-k?M=12 and decomposing it into two parts, wherein is composed of elementary gates, and let =1† and 2=; providing a correction operator, =12 for public-key and =I2k for semi-public-key, and an encoding operator, Qen†V†=W1W2 for public-key and Qp†=W1W2 for semi-public-key, both composed of elementary gates; providing appropriate permutations P, P0 and P1, while P0=P1 for semi-public-key, to obey the nilpotent condition PW1P0=I for the identity operator; through process of merging operators according to sets of identities of gates, including Id-GateELIM, Id-GateEx and Id-GateREP, there obtain the mixed encode for public-key scheme, Uen=PQen†V†=(P1†W1†21W1P1)(P1†P0)(P0†2W1P0) (P0†W2), and that

Abstract: A method of designing a multi-party system in quotient algebra partition-based homomorphic encryption (QAPHE), which is based on the framework of quotient algebra partition (QAP) and the computation of homomorphic encryption (HE), wherein the method comprises: increasing single model provider A to multiple ones, wherein the number of the multiple model providers is L and let A1?i?L and L?2; increasing single data provider B to multiple ones, wherein the number of the multiple data providers is R and let B1?j?R and R?2; and encoding plaintexts, each of which is of kj qubits, from all data providers into ciphertexts respectively; aggregating the ciphertexts by a form of tensor product and generating an encoded state for computation; and preparing a model operation to conduct the encrypted computation via an encoded operator and the encoded state in a cloud. The method can improve the security of public-key/semi-public-key system and be applied to a threshold HE or a multi-key HE to solve actual problems.

Abstract: A public-key scheme of Homomorphic Encryption (HE) in the framework Quotient Algebra Partition (QAP) comprises: encryption, computation and decryption. With the data receiver choosing a partition or a QAP, [n, k, C], a public key Keypub=(VQen, ) and a private key Keypriv=†P\ are produced, where VQen is the product of an n-qubit permutation V and an n-qubit encoding operator Qen, an error generator randomly provides a dressed operator ?=V†EV of spinor error E of [n, k, C]. Then, by Keypub, the sender can encode his k-qubit plaintext |x into an n-qubit ciphertext |?en, which is transmitted to the cloud. The receiver prepares the instruction of encoded computation Uen=PV†Qen† for a given k-qubit action M and sends to cloud, where is the error-correction operator of [n, k, C], =I2n?k?M the tensor product of the (n?k)-qubit identity I2n?k and M, and V†Qen† and P the complex-transposes of VQen and †P† respectively.

Abstract: The method of constructing QAP-based Homomorphic Encryption (HE) in the semi-public setting is introduced, which comprises: encryption, computation, and decryption. The data receiver produces a semi-public key Keys-pub.The data provider can encode his k-qubit plaintext |x to a k-qubit ciphertext |?en=QP|x via a k-qubit invertible operator QP randomly generated by Keys-pub. From the provider, the message En(?p) of QP encoded by a cryptosystem Gcrypt in Keys-pub is transmitted to the receiver through a small-resource communication channel and the ciphertext |?en is conveyed to the cloud. The receiver creates the instruction of encoded computation Uen=PMQP and transports to the cloud, where M is the required k-qubit arithmetic operation, P a k-qubit permutation, and a k-qubit operator to mingle with M. According the instruction, the cloud performs the encrypted evaluation Uen|?en and transfer to the receiver.

Abstract: A method for a multidrop network system is provided. The method includes the following steps: transmitting, by a first node, a sleep request message to a second node; and determining, by the first node, whether to enter a sleep state from a wakeup state according to the condition in which the second node transmits a sleep acknowledge message in response to the sleep request message.

Abstract: A method for a multidrop network system is provided. The method includes the following steps: transmitting, by a first node, a sleep request message to a second node; and determining, by the first node, whether to enter a sleep state from a wakeup state according to the condition in which the second node transmits a sleep acknowledge message in response to the sleep request message.

Abstract: A method for constructing an n-qubit fault tolerant encode for any k-qubit quantum gate M, in any given quantum code [n, k, C], comprising: choosing a number n?k of independent spinors Sr from the first stabilizer C and a first ordered set SC consists of the independent spinors Sr; choosing a number n?k of independent spinors ?r from a second stabilizer ? in the intrinsic coordinate and a second ordered set ?r consists of the independent spinors ?r consist; implementing an encoding Qen, wherein the encoding Qen converts the first ordered set SC to the second ordered set S?, wherein the encoding Qen is a sequential product provided by sequential operations of a number n?k of unitary operators Qr; wherein each of the unitary operator Qr is composed of a single s-rotation or a product of two s-rotations; and wherein the encoding Qen converts and maps the rth independent spinor Sr in the first ordered set SC to the rth independent spinor ?r in the second ordered set S? correspondingly; a fault tolerant action Û i

Abstract: Various examples are provided related to remote detection of termite feeding activates. In one example, a termite feeding detection apparatus includes a consumption sensor module including durable bait; and a notification electronics module including a weather-proof enclosure communicatively coupled to the consumption sensor module. The consumption sensor module can detect when a threshold amount of the durable bait has been consumed and the notification electronics module can transmit a signal in response to detection of the threshold amount of durable bait consumption. In another example, a termite feeding detection system comprises at least one termite feeding detection apparatus; and a receptor configured to receive the signal transmitted by the notification electronics module of the termite feeding detection apparatus and store information associated to the signal.

Abstract: An adaptive magnetic wireless charger comprises a charging dock and a power line. A wireless charging module is arranged in the charging dock, an accommodating cavity is defined around the charging dock by a partition plate, the power line is connected to the wireless charging module, a holding plate is disposed in the accommodating cavity, a magnetic and a spring are mounted on the holding plate, and one end of the spring abuts against an inner top surface of the charging dock.

Abstract: An electronic system includes an echo canceller, a calculation unit, and a control circuit. The echo canceller includes a plurality of operational segments and is configured to perform echo cancellation in a data mode or a power-saving mode. Based on the power of each operational segment provided by the calculation unit, the control circuit is configured to deactivate each stage whose power is lower than a threshold value when the echo canceller is performing echo cancellation in the power-saving mode.

Abstract: An electronic system includes a feedforward equalizer, a feedback equalizer, an RFI canceler, and a control circuit. The feedforward equalizer and the feedback equalizer are configured to adjust the channel response of a transmission channel in the electronic system. The RFI canceler is configured to cancel the RFI presence in the electronic system. When the RFI canceler is off, the controller is configured to turn on the RFI canceler according to a signal error value before RFI cancelation, an error term of the electronic system, or an SNR of the electronic system.

Abstract: An electronic device protective case for wireless charging comprises a shell used for clamping an electronic device. A magnetism-isolation sheet is laid on the inner bottom surface of the shell, A hollowed-out part matched with a wireless charging coil is formed in the magnetism-isolation sheet. A mismatched electromagnetic field is shielded by means of the magnetism-isolation sheet to avoid an influence on metal in the electronic device, so that the situation that the metal becomes hot under the effect of the magnetic field is avoided, damage to components and welding spots on a circuit board is also avoided, and thus, metal parts in the mobile phone or the tablet computer will not be affected no matter whether or not the protective case matches the mobile phone or the tablet computer in position; and meanwhile, diffusion of the electromagnetic field is reduced, and charging efficiency is effectively improved.

Abstract: A method for blood plasma protein activity preservation is provided. The method comprises the steps of mixing blood plasma with two or more protectants selected from the group consisting of triglyceride, glycerol, propylene glycol, alanine, serine, glycine, alginate, and sucrose to obtain a mixture; and lyophilizing the mixture.