Abstract: A cylindrical joint for connecting sub-cables of a superconducting busbar includes a stainless steel shell, stainless steel pressure plates, first sub-cables, second sub-cables, copper saddles, a stainless steel support, indium coatings, stainless steel tapers. First and second sub-cables are supported by the stainless steel support. The first sub-cables and the second sub-cables are embedded into the grooves on the stainless steel support in sequence. The copper saddles are embedded into each of the grooves, and the indium coating is plated on both sides of the copper saddle, respectively. The stainless steel pressure plate is welded to the stainless steel support. The outer side of the joint is the stainless steel shell. The cylindrical joint of the disclosure has a low resistance, a lower AC loss, less materials, and a good cooling performance.

Abstract: Methods of preparing fluorinated compounds by carboxylative fluorination using fluoride are contained herein. Fluorinated compounds are provided. Methods of using fluorinated compounds are contained herein.

Abstract: A cylindrical joint for connecting sub-cables of a superconducting busbar includes a stainless steel shell, stainless steel pressure plates, first sub-cables, second sub-cables, copper saddles, a stainless steel support, indium coatings, stainless steel tapers. First and second sub-cables are supported by the stainless steel support. The first sub-cables and the second sub-cables are embedded into the grooves on the stainless steel support in sequence. The copper saddles are embedded into each of the grooves, and the indium coating is plated on both sides of the copper saddle, respectively. The stainless steel pressure plate is welded to the stainless steel support. The outer side of the joint is the stainless steel shell. The cylindrical joint of the disclosure has a low resistance, a lower AC loss, less materials, and a good cooling performance.

Abstract: A connector assembly of two low temperature superconducting cable terminals and manufacturing method thereof. A connector assembly comprises a copper layer having one side which is conducted with one low temperature superconducting cable and another side which is conducted with another low temperature superconducting cable, two welding material layers, wherein each the welding material layer is provided between the copper layer and either of the two low temperature superconducting cable, and a clip mechanism covered the outer surface of either of the low temperature superconducting cable to tightly clamp the copper layer, the two welding material layers and the two low temperature superconducting cable form the inside to the outside of the connector assembly. The connector assembly of the present invention has compact structure. The saddle-shaped copper block is compressed by a clamp mechanism is use to weld with two low temperature superconducting terminals.

Abstract: Provided herein are methods for producing products containing strained carbocycles, such as cyclopropene moieties and/or bicyclobutane moieties. The methods include combining an alkyne and a carbene precursor in the presence of a heme protein, e.g., a cytochrome P450, under conditions sufficient to form the strained carbocycle. Reaction mixtures for producing strained carbocycles are also described, as well as whole-cell catalysts comprising heme proteins and variants thereof for forming cyclopropenes, bicyclobutanes, and related products.

Abstract: Provided herein are methods for producing an organoboron product. The methods include combining a boron-containing reagent and a carbene precursor in the presence of a heme protein, e.g., a cytochrome c, a cytochrome P450, a globin, a protoglobin, a nitric oxide dioxygenase, a peroxidase, or a catalase, or a variant thereof, under conditions sufficient to form the organoboron product. Reaction mixtures for producing organoboron products are also described, as well as whole-cell catalysts comprising heme proteins and variants thereof for forming carbon-boron bonds.

Abstract: Methods of halogenating a carbon containing compound having an sp3 C—H bond are provided. Methods of fluorinating a carbon containing compound comprising halogenation with Cl or Br followed by nucleophilic substitution with F are provided. Methods of direct oxidative C—H fluorination of a carbon containing compound having an sp3 C—H bond are provided. The halogenated products of the methods are provided.

Abstract: Methods of preparing fluorinated compounds by carboxylative fluorination using fluoride are contained herein. Fluorinated compounds are provided. Methods of using fluorinated compounds are contained herein.

Abstract: A connector assembly of two low temperature superconducting cable terminals and manufacturing method thereof. A connector assembly comprises a copper layer having one side which is conducted with one low temperature superconducting cable and another side which is conducted with another low temperature superconducting cable, two welding material layers, wherein each the welding material layer is provided between the copper layer and either of the two low temperature superconducting cable, and a clip mechanism covered the outer surface of either of the low temperature superconducting cable to tightly clamp the copper layer, the two welding material layers and the two low temperature superconducting cable form the inside to the outside of the connector assembly. The connector assembly of the present invention has compact structure. The saddle-shaped copper block is compressed by a clamp mechanism is use to weld with two low temperature superconducting terminals.

Abstract: Methods of preparing fluorinated compounds by carboxylative fluorination using fluoride are contained herein. Fluorinated compounds are provided. Methods of using fluorinated compounds are contained herein.

Abstract: Provided herein are methods for producing products containing strained carbocycles, such as cyclopropene moieties and/or bicyclobutane moieties. The methods include combining an alkyne and a carbene precursor in the presence of a heme protein, e.g., a cytochrome P450, under conditions sufficient to form the strained carbocycle. Reaction mixtures for producing strained carbocycles are also described, as well as whole-cell catalysts comprising heme proteins and variants thereof for forming cyclopropenes, bicyclobutanes, and related products.

Abstract: Provided herein are methods for producing an organoboron product. The methods include combining a boron-containing reagent and a carbene precursor in the presence of a heme protein, e.g., a cytochrome c, a cytochrome P450, a globin, a protoglobin, a nitric oxide dioxygenase, a peroxidase, or a catalase, or a variant thereof, under conditions sufficient to form the organoboron product. Reaction mixtures for producing organoboron products are also described, as well as whole-cell catalysts comprising heme proteins and variants thereof for forming carbon-boron bonds.

Abstract: Methods of preparing fluorinated compounds by carboxylative fluorination using fluoride are contained herein. Fluorinated compounds are provided. Methods of using fluorinated compounds are contained herein.

Abstract: Fluorinated compounds are provided. Fluorinated compounds may be prepared by a method of halogenating a carbon containing compound having an sp3 C—H bond.

Abstract: Methods of preparing fluorinated compounds by carboxylative fluorination using fluoride are contained herein. Fluorinated compounds are provided. Methods of using fluorinated compounds are contained herein.

Abstract: Methods of halogenating a carbon containing compound having an sp3 C—H bond are provided. Methods of fluorinating a carbon containing compound comprising halogenation with Cl or Br followed by nucleophilic substitution with F are provided. Methods of direct oxidative C—H fluorination of a carbon containing compound having an sp3 C—H bond are provided. The halogenated products of the methods are provided.

Abstract: Methods of halogenating a carbon containing compound having an sp3 C—H bond are provided. Methods of fluorinating a carbon containing compound comprising halogenation with Cl or Br followed by nucleophilic substitution with F are provided. Methods of direct oxidative C—H fluorination of a carbon containing compound having an sp3 C—H bond are provided. The halogenated products of the methods are provided.