Abstract: Catalyst systems are provided, along with corresponding methods, for single stage conversion of synthesis gas to fuel boiling range products with increased selectivity for either naphtha production (C5-C9) or distillate production (C10-C20). The increased selectivity for naphtha production or distillate production is provided in conjunction with a reduced selectivity for higher boiling range components (C21+).

Abstract: Embodiments of the disclosure disclose a method, apparatus and electronic device for information display. The method comprises: displaying at least two session filtering identifiers, a session corresponding to each session filtering identifier satisfying a filtering condition corresponding to the session filtering identifier; displaying information of respective sessions corresponding to a first filtering identifier in a preset display area of a message page, the first filtering identifier being a currently selected filtering identifier; in response to a message of a session corresponding to a second filtering identifier satisfying a preset condition, displaying information of the session in the preset display area, the second filtering identifier being other filtering identifier than the first filtering identifier. The method makes it possible that a message satisfying the preset condition under a filtering identifier which is not selected currently can be displayed in time.

Abstract: A current collector, a battery cover plate, and a battery structure are provided. The current collector includes a first connection portion and a second connection portion. The first connection portion is connected to an electrode post holder, and the first connection portion and the second connection portion are connected through a bending-resistant portion. The battery cover plate includes the above current collector, an electrode post, and a top cover plate. The electrode post body penetrates the top cover plate to be connected to a terminal. The terminal and the current collector are disposed on opposite sides of the top cover plate, and the first connection portion of the current collector is connected to the electrode post.

Abstract: A method, an Internet of Things system, and a storage medium for assessing a smart gas emergency plan are provided, the method is executed by a smart gas safety management platform of the Internet of Things system. The method may include: obtaining a gas pipeline network warning information distribution of a gas pipeline network, the warning information distribution including warning information of at least one warning point location; obtaining gas monitoring data of at least one associated point location corresponding to the at least one warning point location; determining at least one emergency processing point based on the warning information distribution and the gas monitoring data of at least one associated point location; and determining a deployment plan for a gas emergency vehicle based on a gas supply blockage range of the at least one emergency processing point.

Abstract: Disclosed is an open earphone, comprising a sound production component and an ear hook. The ear hook may include a first portion and a second portion connected in sequence. The first portion may be hung between the auricle of a user and the head of the user, the second portion may extend toward a front outer side of the auricle and connect the sound production component, and the sound production component may be located close to the ear canal but not block the opening of the ear canal; wherein the sound production component and the auricle may have a first projection and a second projection on a sagittal plane, respectively, a centroid of the first projection may have a first distance from a highest point of the second projection in a vertical axis direction, a ratio of the first distance to a height of the second projection in the vertical axis direction may be within a range of 0.25-0.

Abstract: The present disclosure may provide an acoustic device. The acoustic device may include a housing, at least one low-frequency acoustic driver, at least one high-frequency acoustic driver, and a noise reduction assembly. The housing may be configured to be rested on a shoulder of a user. The at least one low-frequency acoustic driver may be carried by the housing and configured to output first sound from at least two first sound guiding holes. The at least one high-frequency acoustic driver may be carried by the housing and configured to output second sound from at least two second sound guiding holes. The noise reduction assembly may be configured to receive third sound and reduce noise of the third sound.

Abstract: The present disclosure relates to an open earphone. The open earphone may include a sound production device and an ear hook including a first part and a second part connected in sequence. The first part may be hooked and arranged between an auricle and a head of a user. The second part may extend to a front lateral surface of the auricle and may be connected to the sound production device. The sound production device may be worn at a position that is near an ear canal without blocking an earhole of the user. The sound production device may be at least partially inserted into an auricular concha cavity of the user. An overlap ratio of a projection area of the sound production device on a sagittal plane to a projection area of the auricular concha cavity on the sagittal plane may be not less than 44.01%.

Abstract: A multilayered rail guide vehicle system for use in three-dimensional planting in a plant factory and a control method therefor, the system includes an upper computer, cultivation shelves, traveling devices, lifting devices, and an electric control system. The traveling devices and the lifting devices are arranged in a body of a rail guide vehicle. The upper computer is in wireless communication with the electric control system. A nutrient solution tank is arranged on each of the cultivation shelves, and a plurality of cultivation positions are arranged on the nutrient solution tank. The electric control system is arranged in the body of the rail guide vehicle, so as to obtain an operation mode and target information after receiving a task instruction transmitted by the upper computer, select and switch a positioning mode, and drive the traveling devices and the lifting devices to perform traveling and lifting positioning according to operation procedures.

Abstract: A lighting apparatus includes a first set of LED modules, a second set of LED modules, a first lens, a second lens and a driver. The first lens covers the first set of LED modules. The second lens covers the second set of LED modules. The driver supplies a first driving current and a second driving current respectively to the first set of LED module and the second set of LED modules. The driver electively turns on and turns off the first set of LED modules and the second set of LED modules in a first mode and in a second mode. The first light span in the first mode is partially overlapping the second light span in the second mode. The first light span has a smaller span angle than the second light span.

Abstract: The present disclosure provides an earphone including a sound production component, an ear hook, and a microphone assembly. The microphone assembly includes a first microphone and a second microphone. The sound production component or ear hook includes a first sound hole and a second sound hole corresponding to the first microphone and second microphone, respectively. An extension line of a line connecting a projection of the first sound hole on a sagittal plane of the user and a projection of the second sound hole on the sagittal plane has an intersection point with a projection of an antihelix, a ratio of a first distance between the projection of the first sound hole on the sagittal plane and the projection of the second acoustic hole on the sagittal plane to a second distance between the projection of the second acoustic hole on the sagittal plane and the intersection point is 1.8-4.4.

Abstract: The present disclosure provides methods and devices for key management. In one example, a method of key management comprises: obtaining, at a user device, a number of users in a group of users and a minimum number of users for restoring a transaction key; randomly generating the transaction key; splitting the transaction key into a plurality of sub-keys, the number of sub-keys being the same as the number of users; and sending the plurality of sub-keys to a management device, each of the plurality of sub-keys being encrypted with a public key of a user corresponding to a sub-key.

Abstract: Disclosed herein is a process for upgrading a raffinate butene (C4 Raffinate) stream to propylene which can produce polymer grade propylene (PGP) by a metathesis process, without consuming fresh ethylene as a feedstock. By recycling ethylene byproduct in the metathesis equilibrium, propylene selectivity can be further improved without negatively impacting butene conversion. Additionally, upon PGP separation, this technology can provide an effluent acceptable for alkylate production by achieving a balanced butene conversion and heavies coproduction. The disclosed process is a relatively low temperature process which can be deployed as a drop-in option for conventional ethylene/butene metathesis unit and provide additional flexibility to existing operations to balance the supply and demand of C2-C4 light olefins.

Abstract: Multi-player co-located AR experiences are augmented by assigning characters and costumes to respective participants (a.k.a. “users” of AR-enabled mobile devices) in multi-player AR sessions for storytelling, play acting, and the like. Body tracking technology and augmented reality (AR) software are used to decorate the bodies of the co-located participants with virtual costumes within the context of the multi-player co-located AR experiences. Tracked bodies are distinguished to determine which body belongs to which user and hence which virtual costume belongs to which tracked body so that corresponding costumes may be assigned for display in augmented reality. A host-guest mechanism is used for networked assignment of characters and corresponding costumes in the co-located multi-player AR session. Body tracking technology is used to move the costume with the body as movement of the assigned body is detected.

Abstract: A method for detecting full-body gestures by a mobile device includes a host mobile device detecting the tracked body of a co-located participant in a multi-party session. When the participant's tracked body provides a full-body gesture, the host's mobile device recognizes that there is a tracked body providing a full-body gesture. The host mobile device iterates through the list of participants in the multi-party session and finds the closest participant mobile device with respect to the screen-space position of the head of the gesturing participant. The host mobile device then obtains the user ID of the closest participant mobile device and broadcasts the recognized full-body gesture event to all co-located participants in the multi-party session, along with the obtained user ID. Each participant's mobile device may then handle the gesture event as appropriate for the multi-party session. For example, a character or costume may be assigned to a gesturing participant.

Abstract: A virtual interface application presented in augmented reality (AR) is described for controlling Internet of Things (IoT) products. The virtual interface application enables a user of a portable electronic device to activate a virtual control interface overlay on a display, receive a selection from the user using her hands or feet, and send a control signal to a nearby IoT product which executes an action in accordance with the selection. The virtual control interface is presented on the display as a virtual object in an AR environment. The virtual interface application includes a foot tracking tool for detecting an intersection between the foot location (in the physical environment) and the virtual surface position (in the AR environment). When an intersection is detected, the virtual interface application sends a control signal with instructions to the IoT product.

Abstract: Described are authoring tools for creating interactive AR experiences. The story-authoring application enables a user with little or no programming skills to create an interactive story that includes recording voice commands for advancing to the next scene, inserting and manipulating virtual objects in a mixed-reality environment, and recording a variety of interactions with connected IoT devices. The story creation interface is presented on the display as a virtual object in an AR environment.

Abstract: An apparatus includes: a receiver configured to: receive a downlink signal related to beam failure recovery, and receive a downlink reference signal; and a transmitter configured to, after receiving the downlink signal, transmit a first uplink signal on a first cell by using a first spatial filter identical to a second spatial filter receiving the downlink reference signal.