Abstract:
Devices and methods for fast, sensitive hydrogen gas detection using a single palladium nanowire. In one embodiment, a hydrogen sensor comprises a palladium nanowire extending between metal contacts. The palladium nanowire is not subject to fracturing when exposed to hydrogen. The nanowire is able to rapidly and reversibly detect hydrogen as a resistance increase down to 2 ppm with excellent reproducibility and baseline stability at room temperature.
Abstract:
A computer-implemented method for assisting a user to input Vietnamese text to a user device lacking a subset of characters in a Vietnamese alphabet includes receiving a character input by a user, determining three words previously input by the user, the three words having already had diacritical marks inserted, transmitting the three words and the character to a server via a network, receiving first and second information corresponding to the character from the server via the network, the first and second information generated at the server based on a context of the three words, the context determined at the server using a language model, the first and second information indicating whether the character requires a diacritical mark and a specific diacritical mark, respectively, generating a modified character comprising a character in the Vietnamese alphabet based on the character and the first and second information, and displaying the modified character.
Abstract:
The present invention provides a communication method in a low power communication network, a corresponding low power communication network system and a network node, which enables low power consumption by the data transmission node in the low power communication network while ensuring the communication efficiency of the low power communication network. In this case, the network comprises a first network node and a second network node; the first network node transmits a beacon frame, said beacon frame is used to indicate the time for data transmission by the first network node; the second network node detects said beacon frame to synchronize its data transmission with the first network node. Furthermore, the first network node transmits a dummy beacon frame before it transmits the beacon frame, said dummy beacon frame is used to indicate the time for transmitting the beacon frame; the second network node detects the dummy beacon frame before it detects the beacon frame to acquire the time for transmitting the beacon frame, and carries out data transmission with the first network node synchronously after it has detected the beacon frame.
Abstract:
The present disclosure describes multi-functional windows. Functions of the multi-functional windows described herein can include transmitting incident light, generating photovoltaic power from incident light, and emitting light. In some implementations, a multi-functional window may be placed in a photovoltaic state, a lighting state, or a neutral state. A multi-functional window can continue to function as a normal window in transmitting a portion of any incident light in any of the photovoltaic, lighting, and neutral states. A multi-functional window can be implemented in a building or automobile.
Abstract:
A photosensitive optoelectronic device having an improved hybrid planar bulk heterojunction includes a plurality of photoconductive materials disposed between the anode and the cathode. The photoconductive materials include a first continuous layer of donor material and a second continuous layer of acceptor material. A first network of donor material or materials extends from the first continuous layer toward the second continuous layer, providing continuous pathways for conduction of holes to the first continuous layer. A second network of acceptor material or materials extends from the second continuous layer toward the first continuous layer, providing continuous pathways for conduction of electrons to the second continuous layer. The first network and the second network are interlaced with each other. At least one other photoconductive material is interspersed between the interlaced networks. This other photoconductive material or materials has an absorption spectra different from the donor and acceptor materials.
Abstract:
A multi-party security protocol that incorporates biometric-based authentication and withstands attacks against any single party (e.g., mobile phone, cloud, or the user). The protocol involves the function split between mobile and cloud and the mechanisms to chain-hold the secrets. A key generation mechanisms binds secrets to a specific device or URL (uniform resource locator) by adding salt to a master credential. An inline CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) handling mechanism uses the same sensor modality as the authentication process, which not only improves the usability, but also facilitates the authentication process. This architecture further enhances existing overall system security (e.g., handling untrusted or compromised cloud service, phone being lost, impersonation, etc.) and also improves the usability by automatically handling the CAPTCHA.
Abstract:
Kinship between electronic files among personal networked devices may be ascertained between the files by determining an operational relationship between the files and with a similarity measurement.
Abstract:
The present invention provides a communication method in a low power communication network, a corresponding low power communication network system and a network node, which enables low power consumption by the data transmission node in the low power communication network while ensuring the communication efficiency of the low power communication network. In this case, the network comprises a first network node and a second network node; the first network node transmits a beacon frame, said beacon frame is used to indicate the time for data transmission by the first network node; the second network node detects said beacon frame to synchronize its data transmission with the first network node. Furthermore, the first network node transmits a dummy beacon frame before it transmits the beacon frame, said dummy beacon frame is used to indicate the time for transmitting the beacon frame; the second network node detects the dummy beacon frame before it detects the beacon frame to acquire the time for transmitting the beacon frame, and carries out data transmission with the first network node synchronously after it has detected the beacon frame.
Abstract:
Devices and methods for fast, sensitive hydrogen gas detection using a single palladium nanowire. In one embodiment, a hydrogen sensor comprises a palladium nanowire extending between metal contacts. The palladium nanowire is not subject to fracturing when exposed to hydrogen. The nanowire is able to rapidly and reversibly detect hydrogen as a resistance increase down to 2 ppm with excellent reproducibility and baseline stability at room temperature.
Abstract:
An optoelectronic device and a method of fabricating a photosensitive optoelectronic device includes depositing a first organic semiconductor material on a first electrode to form a continuous first layer having protrusions, a side of the first layer opposite the first electrode having a surface area at least three times greater than an underlying lateral cross-sectional area; depositing a second organic semiconductor material directly on the first layer to form a discontinuous second layer, portions of the first layer remaining exposed; depositing a third organic semiconductor material directly on the second layer to form a discontinuous third layer, portions of at least the second layer remaining exposed; depositing a fourth organic semiconductor material on the third layer to form a continuous fourth layer, filling any exposed gaps and recesses in the first, second, and third layers; and depositing a second electrode on the fourth layer, wherein at least one of the first electrode and the second electrode is transparent, and the first and third organic semiconductor materials are both of a donor-type or an acceptor-type relative to second and fourth organic semiconductor materials, which are of the other material type.