Copper particles are provided that each include a core particle made of copper and a coating layer that coats the surface of the core particle, wherein the coating layer is made of a copper salt of an aliphatic organic acid. It is also preferable that the copper particles have an infrared absorption peak in a range of 1504 to 1514 cm.sup.−1 and no infrared absorption peak in a range of 1584 to 1596 cm.sup.−1. It is also preferable that, in thermogravimetric analysis of the copper particles, the temperature at which the ratio of the mass loss value to the mass loss value at 500° C. reaches 10% is from 150° C. to 220° C. A method is also provided for producing copper particles, the method including bringing core particles made of copper into contact with a solution containing a copper salt of an aliphatic organic acid to thereby coat the surface of the core particles.

A working electrode is inserted into the plant to monitor the health of the plant components or to detect physical, mechanical damage or environmental change in the soil or atmosphere. A standard electrode is inserted into soil surrounding the plant or in the plant itself. A data logger connects the working electrode and the standard electrode. The data logger measures the potential difference between the working electrode and the electrolyte to provide the ability to compare a measured potential difference with a predetermined critical potential difference for the plant. A second electrochemical cell can inject electrons and ions into the plant. The plant can be used as a sensor to monitor the environmental change in the soil or in the atmosphere.

Systems for inspecting pipes or cavities including a camera head, a coaxial push-cable, and a video signal transmitter and a communicatively coupled camera control unit (CCU) are disclosed.

A vehicle cable capable of transmitting a signal of 4 GHz or higher includes a two-core cable, a general shield layer that has a braided structure and is disposed on an outer periphery of the two-core cable, and an outer sheath disposed on an outer periphery of the general shield layer. The two-core cable includes two conductors that are a pair of stranded wires arranged in parallel to each other, an insulation layer configured to bundle and cover the two conductors, and a first shield layer including a first metal foil that is disposed on an outer periphery of the insulation layer.

The present disclosure relates to a wire and a stranded wire for a high-power electric vehicle charging cable which is capable of transmitting high power of more than 400 kWh, and the high-power electric vehicle charging cable. Specifically, the present disclosure relates to a wire for a high-power electric vehicle charging cable, a stranded wire for a high-power electric vehicle charging cable, and a high-power electric vehicle charging cable, which are obtained by coating a metal wire with a two-dimensional material layer having high electrical conductivity, in order to prevent an increase in weight of the electric vehicle charging cable. In addition, the wire, stranded wire or high-power electric vehicle charging cable according to the present disclosure is compatible with a conventional electric vehicle charging cable connector even when it is used to transmit high power of more than 400 kWh.

The conductive film is arranged on the support and contains a binder and a metal portion, in which a position at which the contour line reaches the metal portion included in the thin conductive wire is set as an upper end position, and an average area ratio VA of the metal portion in a region ranging from the upper end position to 100 nm toward the support side is 1% or more and less than 50%, and a position at which the contour line reaches the thin conductive wire does not include the metal portion is set to a lower end position, and an average area ratio VM1 of the metal portion in a region ranging from a middle position between the upper end position and the lower end position to 50 nm toward the support side and to 50 nm toward the surface X side is 50% or more.

A technique facilitates construction and operation of a power cable which may be used to supply power to an electric submersible pumping system downhole into a wellbore. The power cable comprises at least one electrical conductor. Each electrical conductor is insulated with an insulation layer and protected from deleterious fluids by a fluid barrier layer. Further protection is provided by a protective layer disposed around the fluid barrier layer. The protective layer is foamed to provide a cushion layer and to further protect components of the power cable. An armor layer may be disposed around the protective layer.

A technique facilitates construction and operation of a power cable which may be used to deploy an electric submersible pumping system downhole into a wellbore. The power cable is constructed to provide structural support of the electric submersible pumping system while also providing electric power to the electric submersible pumping system when located downhole in the wellbore. The power cable comprises at least one conductor and a plurality of layers selected and arranged to ensure long-term support and delivery of electrical power in the relatively harsh downhole environment.

An assembly can include a housing that includes opposing ends, a longitudinal axis, an axial length defined between the opposing ends, a maximum transverse dimension that is less than the length and an interior space; circuitry disposed at least in part in the interior space; and a coated electrical conductor electrically coupled to the circuitry where the coated electrical conductor includes an electrical conductor that includes copper and a length defined by opposing ends, a polymeric electrical insulation layer disposed about at least a portion of the length of the electrical conductor, and a barrier layer disposed about at least a portion of the polymeric electrical insulation layer.

A copper alloy containing Ni: 1.5%-3.6% and Si: 0.3%-1.0% in terms of mass percent with the remainder consisting of copper and unavoidable impurities, wherein: the average crystal grain size of the crystal grains in the copper alloy is 5 to 30 μm; the area ratio of the crystal grains having crystal grain sizes not less than twice the average crystal grain size is not less than 3%; and the ratio of the area of cube orientation grains to the area of the crystal grains having crystal grain sizes not less than twice the average crystal grain size is not less than 50%.