Abstract: present disclosure A positive electrode material includes a first lithium transition metal oxide and a second lithium transition metal oxide having a smaller average particle diameter (D50) than the first lithium transition metal oxide. The particle strength of the first lithium transition metal oxide is 100 MPa or more, and the particle strength of the second lithium transition metal oxide is twice or more than the particle strength of the first lithium transition metal oxide. A positive electrode and a lithium secondary battery including the same are also provided.

Abstract: The method comprises obtaining a document including a target infectious disease as a corpus for each of a plurality of time sections, converting a plurality of words included in the obtained corpus into embedding vectors, calculating similarities between the respective converted embedding vectors and an embedding vector indicating the target infectious disease, extracting an embedding vector of which the calculated similarity is higher than a predetermined first threshold value, for each time section, obtaining first time series data indicating a search volume, over time, of a word corresponding to the embedding vector extracted for each time section, calculating a correlation coefficient between the obtained first time series data and second time series data, and generating a word corresponding to the first time series data of which the calculated correlation coefficient is higher than a predetermined second threshold value as a keyword for each time section.

Abstract: The present disclosure relates to an antenna RF module, an RF module assembly including the antenna RF modules, and an antenna apparatus including the RF module assembly. Particularly, the antenna RF module includes an RF module, a radiation element module arranged on a first side of the RF filter, and an amplification unit board arranged on a second side of the RF filter, an analog amplification element being mounted on the amplification unit board. A plurality of antenna RF modules constitute the RF module assembly, and the RF module assembly and an antenna housing constitute the antenna apparatus. Accordingly, a radome that interrupts dissipation of heat to in front of an antenna is unnecessary, and heat generated from heat generating elements of the antenna apparatus is spatially separated. Thus, it is possible that the heat is dissipated in a distributed manner toward the front and rear directions of the antenna apparatus. The effect of greatly improving performance in heat dissipation can be achieved.

Abstract: A method to produce a rigid polyurethane foam includes emulsifying a nucleating agent by mixing the nucleating agent with a polyol and a foam stabilizer, preparing a polyol mixture by mixing water, a catalyst, and a blowing agent at one of: before the emulsifying, during the emulsifying and after the emulsifying, and reacting the polyol mixture with a polyisocyanate.

Abstract: A method to produce a rigid polyurethane foam includes emulsifying a nucleating agent by mixing the nucleating agent with a polyol and a foam stabilizer, preparing a polyol mixture by mixing water, a catalyst, and a blowing agent at one of: before the emulsifying, during the emulsifying and after the emulsifying, and reacting the polyol mixture with a polyisocyanate.

Abstract: A method for carrying out a surface finishing work with an electronically controlled hydraulic excavator is disclosed.

Abstract: The present invention relates to a method for automatically controlling prescribed work to be repeatedly done by the excavator. An electronic control using a processor and sensors is used to precisely control the work under program control regardless of the hardness of the ground. The controlling method according to the present invention utilizes stored data of the position of each of the joints of the actuators when the prescribed work is performed. During the repeated work, each joint is able to maintain its desired position regardless of the hardness of the ground. Further, because the operational mode can be stored at the same time as storing of the data for the prescribed work, the invention compares the operational mode with the repeated work. The performance speed of the repeated work can be controlled as much as intended by the operator. The repeated work can be performed with high speed when an unskilled operator stores the operation of the prescribed work with a slow speed.

Abstract: The present invention relates to a method for automatically controlling the speed ratio of swing and boom operation of the excavator, which makes the operator perform the dig-up task in a easy and precise manner by adapting an electronic control using micro-module and sensors and so forth. The controlling method according to the present invention utilizes the angular velocity for the swing and the boom operation which is dependent on the position of the truck and is preset by the operator in the input/output board of the controller. When the dig-up task is performed, the operator will operate the joy sticks for the swing and the boom as much as possible and the controller enables the swing operation to move to the desired position without dropping a lump of earth. Again, when the operator operates the joy sticks for the dipper and the bucket in the same manner, the dipper and the bucket will move to the position in which the truck is placed.