Abstract: Disclosed is a means for facilitating, in a method for separating and individually collecting organic acids and alkali salts from organic acid alkali salts, separation/collection of lactic acids and alkali salts via an economic and eco-friendly diffusion analysis method without adding a complicated process such as electrodialysis or electrolysis. During a process of diffusion dialysis of organic acid salts, gaseous components that can release protons are injected into a collection part so that the electroneutrality in solution can be maintained and protons can be transferred to a feed part, thereby facilitating the collection of organic acids. Also, alkali cations that have moved to the collection part may form alkali salts with the gaseous components and be then collected, and a nonsolvent may be used to lower the solubility of the alkali salts for easy collection.

Abstract: The present invention relates to a 5-halomethylfurfural production method involving a pretreatment step and, specifically, to a 5-halomethylfurfural production method whereby the yield of halomethylfurfural can be maximized by performing a pretreatment that improves the degree of solubilization of a sugar component before dehydration.

Abstract: The present invention relates to a method for preparing 5-acetoxymethyl furfural (AMF) from sugar ingredients and, specifically, to a method for preparing 5-acetoxymethyl furfural (AMF) from sugar ingredients by converting XMF into AMF without separation and purification, which remove an extraction solvent from a solution in which an aqueous phase comprising 5-halomethyl furfural (XMF) and an organic phase are mixed, thereby enabling XMF in a crude product form to be directly used without requiring in-process separation and purification equipment.

Abstract: Various examples are directed to systems and methods for maintaining a software application. A testing system may execute a test selection computerized model, where an output of the test selection computerized model is based at least in part on the commit operation and a plurality of test cases. The testing system may also execute a defect prediction computerized model, where an output of the defect prediction computerized model is based at least in part on the commit operation. The testing system may generate a ranked set of test cases selected from the plurality of test cases, the ranked set of test cases comprising less than all of the plurality of test cases and execute at least a portion of the ranked set of test cases against the build of the software application.

Abstract: A method of producing a catalyst for synthesizing alkyl acrylate from alkyl lactate and a method of producing alkyl acrylate using the catalyst are disclosed herein. More specifically, a catalyst including zeolite is produced by a method that does not use an organic structure directing agent, and a dehydration reaction of alkyl lactate is promoted using the catalyst, thereby obtaining alkyl acrylate in a yield higher than obtained by conventional methods.

Abstract: Machine learning is used for pre-submit test selection. A commit including a new code change is obtained and a feature vector is generated based on the code change and historical test information. A ranking pre-submit tests is determined by providing the feature vector to a learning algorithm. One or more pre-submit tests are selected based on the ranking and the new code change is tested using selected tests. An assessment of the new code change is determined based on the test results, which indicate whether the new code change is accepted or rejected for submission to the source code repository. Later, new submitted source code stored in the repository is tested using a set of post-submit tests to obtain post-submit test results. Then the learning algorithm is updated based on the assessment of the new code change and the post-submit test results to obtain an updated learning algorithm.

Abstract: According to the present disclosure, by forming normal pressure conditions in a reaction system through application of a reflux system to an aqueous phase in the presence of sulfuric acid and an inorganic salt in the dehydration reaction of biomass-derived sugar components in an open system, there is no need to include a high-pressure vessel required in a conventional 5-halomethylfurfural production process, there is no risk of safety accidents, including the explosion of a high-pressure vessel and the leakage of strong acid gas, and there is a remarkable effect in that yield is improved three-fold or more compared to the case of using a conventionally used acid catalyst under the normal pressure conditions.

Abstract: The present invention pertains to: an ethylene oligomerization catalyst containing a ligand compound; a catalyst composition employing same; and a method for producing an ethylene oligomer by using same. The catalyst exhibits excellent selectivity to oligomers and selectivity to 1-hexane, thus making it possible to mass-produce 1-hexane, which is an industrially useful chemical raw material, with high purity.

Abstract: The present invention successively performs hydrodeoxygenation (HDO) and dehydration so that, unlike that of a conventional technique, an alpha-olefin is prepared to have high selectivity, and not an olefin having a double bond at sites other than the alpha position. In addition, according to the present invention, selectivity for alpha-olefin can be further improved under optimal reaction conditions, and an alpha-olefin can be stably prepared with an extended preparation time of up to 180 hours.

Abstract: Various examples are directed to systems and methods for testing software. A testing system may use test case data describing a first test case failed by a first build of the software application, the first build generated by a first commit operation of the plurality of commit operations to execute a fault localization operation, the fault localization operation to identify a first suspect program element of a first build. The testing system may use the first suspect program element and commit data to select a second commit operation from the plurality of commit operations. The testing system may determine an error-inducing commit operation from the plurality of commit operations and executing a corrective action.

Abstract: The present disclosure relates to a method for recovering styrene monomers from waste polystyrene, and more specifically, to a method for recovering styrene monomers from waste polystyrene, in which the waste polystyrene is depolymerized using an eco-friendly solvent and a potassium-containing carbonate depolymerization catalyst to suppress the generation of ethylbenzene, etc. generated as by-products in a styrene monomer recovery step, and thus the styrene monomers can be recovered in high yield.

Abstract: Proposed are a coordination complex compound-ZIF complex and a method of preparing the same. More particularly, proposed are a coordination complex compound-ZIF complex, which is a complex on which a coordination complex compound is supported by being chemically and directly bonded to a metal vacancy site of a ZIF, capable of being usable as a heterogeneous catalyst that can be recovered and reused in subsequent processes and maintaining catalytic functions of the coordination complex compound, which is an active ingredient, and to a method of preparing the same.

Abstract: Various examples are directed to systems and methods for testing software. A testing system may use test case data describing a first test case failed by a first build of the software application, the first build generated by a first commit operation of the plurality of commit operations to execute a fault localization operation, the fault localization operation to identify a first suspect program element of a first build. The testing system may use the first suspect program element and commit data to select a second commit operation from the plurality of commit operations. The testing system may determine an error-inducing commit operation from the plurality of commit operations and executing a corrective action.

Abstract: The present disclosure relates to a catalyst for preparing 1,2-pentanediol from furfural and/or furfuryl alcohol, and more particularly to a catalyst, which is configured such that a catalytically active metal containing both at least one transition metal and tin (Sn) is supported on a basic support and is capable of increasing reaction selectivity for 1,2-pentanediol, and a method of preparing 1,2-pentanediol using the same.

Abstract: Various examples are directed to systems and methods for testing software. A testing system may use test case data describing a first test case failed by a first build of the software application, the first build generated by a first commit operation of the plurality of commit operations to execute a fault localization operation, the fault localization operation to identify a first suspect program element of a first build. The testing system may use the first suspect program element and commit data to select a second commit operation from the plurality of commit operations. The testing system may determine an error-inducing commit operation from the plurality of commit operations and executing a corrective action.

Abstract: Various examples are directed to systems and methods for testing software. A testing system may use test case data describing a first test case failed by a first build of the software application, the first build generated by a first commit operation of the plurality of commit operations to execute a fault localization operation, the fault localization operation to identify a first suspect program element of a first build. The testing system may use the first suspect program element and commit data to select a second commit operation from the plurality of commit operations. The testing system may determine an error-inducing commit operation from the plurality of commit operations and executing a corrective action.

Abstract: Proposed is a catalyst complex having high activity for carbon dioxide conversion reaction that converts carbon dioxide to useful compounds through reaction of carbon dioxide and hydrocarbon containing at least one hydroxyl group, and a carbon dioxide conversion process using the same, wherein the catalyst complex includes, as an active metal in the catalyst complex, at least one of noble metals and at least one of transition metals other than noble metals, thereby having high activity for the carbon dioxide conversion reaction.

Abstract: Proposed is a high-yield simultaneous conversion method for a hydrogen source and a carbon dioxide source. The method significantly increases a yield of a formate through conversion of carbon dioxide. To this end, a carbon dioxide source and a hydrocarbon containing one or more hydroxy groups undergo a simultaneous conversion reaction in the presence of a solvent containing one or more alcohols and having a pH of 10 to 14.

Abstract: The present disclosure provides a preparing method for 5-alkoxymethylfurfural, including steps of (a) preparing fructose, (b) mixing the fructose, an organic acid catalyst, and an organic solvent, thereby preparing mixing solution, and (c) heating the mixing solution, thereby preparing 5-alkoxymethylfurfural. Therefore, 5-alkoxymethylfurfural may be effectively prepared without by-products from fructose.

Abstract: Proposed is a two-pot-two-step simultaneous conversion system for carbon dioxide and a hydrocarbon containing at least one hydroxy group and a method thereof. The system integrates a process of producing a metal salt that is a dehydrogenated form of the hydrocarbon, hydrogen, and water by reacting a hydrocarbon containing at least one hydroxy group in the presence of water and a metal oxalate, and a process of converting carbon dioxide or carbon dioxide-derived carbonate into formate by hydrogenation, thereby increasing energy efficiency while maintaining a higher hydrocarbon conversion rate and a higher carbon dioxide conversion rate than the one-pot conversion system for hydrocarbon and carbon dioxide.