Abstract: Disclosed are methods and apparatuses for small data transmission in random access. One embodiment of the subject application provides a method performed by a user equipment, including determining an association among a first random access channel (RACH) occasion (RO), a preamble, and a second RO, and receiving an random access response (RAR) in an Msg2 at least according to the second RO in response to transmitting the preamble in the first RO.

Abstract: Method and apparatus for data transmission are disclosed. One method of a network equipment includes scrambling and modulating coded bits to generate data; mapping the data into a first resource block and a second resource block, both of which forms a resource block, wherein the first resource block is from a symbol with an indicated index to a symbol with an end index of the resource block, the second resource block is from a symbol with a start index to a symbol with the indicated index minus one of the resource block; and transmitting the data in the resource blocks.

Abstract: A method and system for minimizing the control overhead in a multi-carrier wireless communication network that utilizes a time-frequency resource is disclosed. In some embodiments, one or more zones in the time-frequency resource are designated for particular applications, such as a zone dedicated for voice-over-IP (VoIP) applications. By grouping applications of a similar type together within a zone, a reduction in the number of bits necessary for mapping a packet stream to a portion of the time-frequency resource can be achieved. In some embodiments, modular coding schemes associated with the packet streams may be selected that further reduce the amount of necessary control information. In some embodiments, packets may be classified for transmission in accordance with application type, QoS parameters, and other properties. In some embodiments, improved control messages may be constructed to facilitate the control process and minimize associated overhead.

Abstract: A method and system for minimizing the control overhead in a multi-carrier wireless communication network that utilizes a time-frequency resource is disclosed. In some embodiments, one or more zones in the time-frequency resource are designated for particular applications, such as a zone dedicated for voice-over-IP (VoIP) applications. By grouping applications of a similar type together within a zone, a reduction in the number of bits necessary for mapping a packet stream to a portion of the time-frequency resource can be achieved. In some embodiments, modular coding schemes associated with the packet streams may be selected that further reduce the amount of necessary control information. In some embodiments, packets may be classified for transmission in accordance with application type, QoS parameters, and other properties. In some embodiments, improved control messages may be constructed to facilitate the control process and minimize associated overhead.

Abstract: The present disclosure provides a method for extracting lithium using a resin adsorbent to pretreat low-grade deep brine, which relates to the technical field of lithium extraction from brine. In the present disclosure, resin adsorbent is used to perform adsorption pretreatment on the concentrated brine, which can adsorb organic impurities in the concentrated brine without adsorbing lithium ions, so that the concentration of lithium ions is almost unchanged compared with the feed material, with the subsequent manganese-based lithium adsorbent, the adsorption rate of lithium can be increased by 41%; At the same time, pretreating the concentrated brine using resin adsorbents has shorter steps, less materials, and does not produce a large amount of low-value product gypsum, which makes the lithium extraction process simpler and easier to operate, and reduces production costs.

Abstract: There are provided bivalent compounds and conjugates thereof, the conjugates comprising a bivalent compound, a targeting moiety, and a bioactive agent, as well as pharmaceutical compositions and methods of use of the conjugate for the treatment, inhibition, or prevention of diseases and disorders which are therapeutic targets of the bioactive agent.

Abstract: The invention discloses a self-derivative iron-containing nickel anode for alkaline water electrolysis and its preparation method. The anode comprises a nickel substrate and catalytic material layer. The catalytic layer is disposed on and integrated with the surface of the nickel substrate. The catalytic layer contains nickel oxide with iron components. The nickel oxide results from the reaction of the surface layer of the nickel substrate with an oxidant-rich alkaline solution and forms a nanosheet array layer. A nickel-oxidation state containing the iron component is formed by electrochemically induced iron-ion corrosion of the nickel-oxidation state. The invention can effectively reduce the potential difference between the anode and cathode of an electrolysis cell, thereby significantly reduces energy consumption and improves the efficiency of water electrolysis.

Abstract: The invention provides, among other things, a method for preparing a sintered nickel alkaline water electrolysis electrode for electrolytic hydrogen production. This method utilizes sintering furnace, ball-millings the mixture of nickel carbonate and selected nickel powder to obtain the raw material, adds polyvinyl alcohol to get the die under cold-pressing effect, sintering to make porous sintered nickel. In some embodiments, the surface of a nickel mesh used for the electrode is larger than the surface of the nickel mesh usually used in conventional hydrogen generation equipment and exhibits high-level catalytical activity and stability of hydrogen evolution. The proposed method is simple, easy to operate and has low production cost, which is suitable for electrolytic reactions under high current density conditions.

Abstract: The invention discloses a water electrolysis hydrogen production plant with a pumpless water supply system. The plant includes a water treatment system, a water tank, a water electrolysis device, and a controller. The water treatment system, water tank and water electrolysis device are sequentially connected together via pipelines and associated valves. Compressed gas is connected, via a pipeline, to the water tank, and serves to drive water from the water tank into the water electrolysis device. A process flow for the method of operating the pumpless water supply system in a water electrolysis hydrogen production plant is also disclosed.

Abstract: A configuration for a mini hydrogen battery charger includes an electrolysis cell, a purification chamber and an alterable color drying tower. A purification chamber ensures that the device can use regular water, instead of deionized water, for hydrogen generating. In various embodiments, the configuration includes fewer parts then other devices decrease the risk of hydrogen leakage and improve the user experience.

Abstract: A configuration for an electrolysis stack device with adjustable operating capacity, including a specially shaped polar panel, an electricity connector and a pressing connector. A connection part of the polar panel and a pressing connector ensure that the electrical current can flow smoothly from a power source, via the electricity connector, to the electrolysis stack and back to the power source. In various embodiments, a zigzag track may help an electricity connector move to the correct position to vary the operating capacity of the electrolysis stack device.

Abstract: A configuration for an electrolysis stack device with adjustable operating capacity, including a specially shaped polar panel, an electricity connector and a pressing connector. A connection part of the polar panel and a pressing connector ensure that the electrical current can flow smoothly from a power source, via the electricity connector, to the electrolysis stack and back to the power source. In various embodiments, a zigzag track may help an electricity connector move to the correct position to vary the operating capacity of the electrolysis stack device.

Abstract: Systems and methods for generating hydrogen by electrolysis of water from a volatile power source may facilitate adjusting the operating capacity of an electrolysis stack based on measurements of the electricity output of the power source. In various embodiments, capacity adjustment is achieved by incorporating fewer or more cells of the electrolysis stack into a closed electrical circuit including the incorporated cells in series with the power source.

Abstract: A novel system and method for generating hydrogen by electrolysis of water from a green power source. Electricity generated by solar panel or wind mill is measured and connected with plurality of electrolysis stacks. The number of operating electrolysis stacks are constantly controlled by a controlling mechanism that calculates an optimal operating number of electrolysis stacks using the measured electricity parameter and the operating parameter of an electrolysis unit.