Abstract: A method for predicting and optimizing an ROP for oil and gas drilling based on Bayesian optimization includes: acquiring raw drilling data according to a preset sampling period, constructing an initial sample data set based on the raw drilling data, constructing an ROP prediction model based on the initial sample data set, and predicting an ROP at a next sample point through a Gaussian process regression based on the ROP prediction model. The present invention realizes rapid analysis of historical drilling data and accurate prediction of an ROP range at a sample point in a feasible domain. The method can obtain an optimized ROP and an optimized engineering parameter through Bayesian optimization, and obtain an engineering parameter corresponding to an optimal ROP. The method has few restrictions on the drilling engineering parameter and the raw formation parameter, improves prediction accuracy, and avoids the problem of blurred parameter value boundaries.

Abstract: A method for predicting and optimizing an ROP for oil and gas drilling based on Bayesian optimization includes: acquiring raw drilling data according to a preset sampling period, constructing an initial sample data set based on the raw drilling data, constructing an ROP prediction model based on the initial sample data set, and predicting an ROP at a next sample point through a Gaussian process regression based on the ROP prediction model. The present invention realizes rapid analysis of historical drilling data and accurate prediction of an ROP range at a sample point in a feasible domain. The method can obtain an optimized ROP and an optimized engineering parameter through Bayesian optimization, and obtain an engineering parameter corresponding to an optimal ROP. The method has few restrictions on the drilling engineering parameter and the raw formation parameter, improves prediction accuracy, and avoids the problem of blurred parameter value boundaries.

Abstract: Reactive sulfur species have been recognized as an important regulator in redox biology, wherein the reactive sulfur species have been shown to be active in tumor suppressors, ion channels, and transcription factors. The disclosed invention is a novel composition of matter that allows for the detection of H2S and H2Sn species in living cells. These novel compositions represent significant progress in the field of chemical, H2S and H2Sn probes as they have both been successfully applied in the visualization sulfur species in living systems.

Abstract: Methods of using the formulations disclosed herein to treat or prevent a broad spectrum of enveloped viruses are provided. In particular, a method of treating or preventing a disease state caused by an enveloped type virus can include agents of a formula wherein R1, is selected from the group consisting of OH, OR6, NHR6, and NR6R7 where R6 and R7 are selected from the group consisting of alkyl, aryl, methyl and heteroaryl; R2 is selected from the groups consisting of OR6, acyl, alky, aryl, and sulfonyl; R3 is selected from the group consisting of OR6 alkyl, aryl, substituted aryl, and heteroaryl; R4 and R5 are independently selected from the groups consisting of hydrogen, methyl or alkyl, substituted alkyl, aryl, and substituted aryl; and whereby, administration of the compound allows for the treatment of enveloped viruses.

Abstract: Methods of using the formulations disclosed herein to treat or prevent a broad spectrum of enveloped viruses are provided. In particular, a method of treating or preventing a disease state caused by an enveloped type virus can include agents of a formula wherein R1, is selected from the group consisting of OH, OR6, NHR6, and NR6R7 where R6 and R7 are selected from the group consisting of alkyl, aryl, methyl and heteroaryl; R2 is selected from the groups consisting of OR6, acyl, alky, aryl, and sulfonyl; R3 is selected from the group consisting of OR6 alkyl, aryl, substituted aryl, and heteroaryl; R4 and R5 are independently selected from the groups consisting of hydrogen, methyl or alkyl, substituted alkyl, aryl, and substituted aryl; and whereby, administration of the compound allows for the treatment of enveloped viruses.

Abstract: The embodiments herein generally relates to compounds and methods for releasing H2S in a pH dependent manner. In particular, the invention provides compounds of various formulations which release H2S in a controlled, predictable and sustained manner upon contact with an aqueous environment, such as the circulatory system of an animal, and which are thus suitable for in vivo delivery of H2S.

Abstract: Reactive sulfur species have been recognized as an important regulator in redox biology, wherein the reactive sulfur species have been shown to be active in tumor suppressors, ion channels, and transcription factors. The disclosed invention is a novel composition of matter that allows for the detection of H2S and H2Sn species in living cells. These novel compositions represent significant progress in the field of chemical, H2S and H2Sn probes as they have both been successfully applied in the visualization sulfur species in living systems.

Abstract: The embodiments herein generally relates to compounds and methods for releasing H2S in a pH dependent manner. In particular, the invention provides compounds of various formulations which release H2S in a controlled, predictable and sustained manner upon contact with an aqueous environment, such as the circulatory system of an animal, and which are thus suitable for in vivo delivery of H2S.

Abstract: Reaction-based fluorescent probes are provided which detect, for example, biologically important sulfane sulfur species (persulfide, polysulfide, and elemental sulfur) in, for example, complex and living systems. The probes are high in selectivity and sensitivity to sulfane sulfurs. Moreover, probes are suitable for bioimaging sulfane sulfurs in living cells.

Abstract: Methods and assays for detecting S-sulfhydration of amino acids in proteins, polypeptides and peptides are provided. The method is a two-step “tag-switch” method employing two reagents consecutively to specifically label, with a detectable label, persulfide (—S—SH) linkages in proteins, polypeptides and peptides.

Abstract: Provided are methods for forming a reactive S-nitroso thioacid (NTA), comprising nitrosation of a thioacid with a nitrosation reagent. Also provided are methods for: acylating a nucleophile including selective acylation with a high degree of selectivity toward amines over hydroxyls; amide or peptide bond formation; forming a dipeptide or polypeptide; and peptide coupling/ligation, comprising use of thioacid and amine starting materials, wherein the reactions are mediated by very reactive S-nitroso thioacid (NTA) intermediates enabling extremely fast reactions under mild conditions, providing for broad applications.

Abstract: Agents of formula: where R1 and R2 vary independently and are acyl, sulfonyl, phosphoryl, alkyl, substituted alkyl, halogen, aryl, arylalkyl, substituted aryl, heteroaryl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, cycloalkyl, heterocycle, or heteroatoms; and R3 is H or a member of a ring structure which includes R2, are provided; as are agents of formula: where R1, R2 and R3 vary independently and: R1=OH, OR?, NHR?, NR?R? (with R? R?=alkyl, aryl, heteroaryl, etc); R2=acyl, alkyl, aryl, sulfonyl, etc; R3=alkyl, aryl, substituted aryl, heteroaryl, etc; and R4 and R5 are (independently) H, methyl or alkyl, substituted alkyl, aryl, substituted aryl, etc. Methods of using the agents to treat e.g. cardiovascular disease, stroke, shock, injuries caused by hypoxia, male erectile dysfunction, and Alzheimer's are provided.

Abstract: An epoxide agent for an epoxy resin system, the epoxide agent comprising at least one non-acid functional rosin moiety and at least one epoxide moiety. Another embodiment is a curing agent for an epoxy resin system comprising at least one non-acid functional rosin moiety and at least one moiety that is reactive with an epoxy.

Abstract: Methods and assays for detecting S-sulfhydration of amino acids in proteins, polypeptides and peptides are provided. The method is a two-step “tag-switch” method employing two reagents consecutively to specifically label, with a detectable label, persulfide (—S—SH) linkages in proteins, polypeptides and peptides.

Abstract: Reaction-based fluorscent probes are provided which detect, for example, biologically important sulfane sulfur species (persulfide, polysulfide, and elemental sulfur) in, for example, complex and living systems. The probes are high in selectivity and sensitivity to sulfane sulfurs. Moreover, probes are suitable for bioimaging sulfane sulfurs in living cells.

Abstract: Agents of formula: where R1 and R2 vary independently and are acyl, sulfonyl, phosphoryl, alkyl, substituted alkyl, halogen, aryl, arylalkyl, substituted aryl, heteroaryl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, cycloalkyl, heterocycle, or heteroatoms; and R3 is H or a member of a ring structure which includes R2, are provided; as are agents of formula: where R1, R2 and R3 vary independently and: R1=OH, OR?, NHR?, NR?R? (with R? R?=alkyl, aryl, heteroaryl, etc); R2=acyl, alkyl, aryl, sulfonyl, etc; R3=alkyl, aryl, substituted aryl, heteroaryl, etc; and R4 and R5 are (independently) H, methyl or alkyl, substituted alkyl, aryl, substituted aryl, etc. Methods of using the agents to treat e.g. cardiovascular disease, stroke, shock, injuries caused by hypoxia, male erectile dysfunction, and Alzheimer's are provided.

Abstract: Provided are methods for forming a reactive S-nitroso thioacid (NTA), comprising nitrosation of a thioacid with a nitrosation reagent. Also provided are methods for: acylating a nucleophile including selective acylation with a high degree of selectivity toward amines over hydroxyls; amide or peptide bond formation; forming a dipeptide or polypeptide; and peptide coupling/ligation, comprising use of thioacid and amine starting materials, wherein the reactions are mediated by very reactive S-nitroso thioacid (NTA) intermediates enabling extremely fast reactions under mild conditions, providing for broad applications.

Abstract: An epoxide agent for an epoxy resin system, the epoxide agent comprising at least one non-acid functional rosin moiety and at least one epoxide moiety. Another embodiment is a curing agent for an epoxy resin system comprising at least one non-acid functional rosin moiety and at least one moiety that is reactive with an epoxy.

Abstract: Processes for synthesizing a compound of Formula (I) are provided by reacting a compound of Formula (i) with a compound of Formula (xx).

Abstract: Processes for synthesizing a compound of Formula (I) are provided by reacting a compound of Formula (i) with a compound of Formula (xx).