Abstract: Embodiments of the present invention relate to a sample image photographing method and a corresponding sample image photographing apparatus.

Abstract: A sample analysis system, method and a cell image analysis device. The sample analysis system includes a blood cell analyzer, a smear preparation apparatus, a cell image analysis apparatus, and a controller. The controller obtains a test result of at least one sample from the blood cell analyzer. When one sample needs to be analyzed by the cell image analysis device, the controller can further control an imaging condition used by the cell image analysis device according to a value of at least one type of cells in the test result of the sample, such that the cell image analysis device can automatically selects an imaging condition matching the test result for imaging according to different test results of the sample. Therefore, a matching imaging condition is used to specifically capture and analyze cell images of a smear of the sample, thereby improving processing efficiency and accuracy.

Abstract: A system can maintain a copy-on-write b+ tree for a data storage system that is configured to store data as chunks, and a mapping between tree page identifiers of the b+ tree and first in-use chunk identifiers. The system can perform reference count validation, comprising iterating over the mapping, wherein the iterating over the mapping comprises, based on a first tree page identifier of the tree page identifiers being present in the mapping, loading second in-use chunk identifiers that correspond to the first tree page identifier directly from the mapping; and based on the first tree page identifier of the tree page identifiers being absent, loading corresponding content, extracting third in-use chunk identifiers from object metadata of the content, and updating the mapping based on the third in-use chunk identifiers, to produce an updated mapping. The system can perform garbage collection of the data storage system based on the validation.

Abstract: A system can maintain a copy-on-write b+ tree for a data storage system that is configured to store data as chunks, and a mapping between tree page identifiers of the b+ tree and first in-use chunk identifiers. The system can perform reference count validation, comprising iterating over the mapping, wherein the iterating over the mapping comprises, based on a first tree page identifier of the tree page identifiers being present in the mapping, loading second in-use chunk identifiers that correspond to the first tree page identifier directly from the mapping; and based on the first tree page identifier of the tree page identifiers being absent, loading corresponding content, extracting third in-use chunk identifiers from object metadata of the content, and updating the mapping based on the third in-use chunk identifiers, to produce an updated mapping. The system can perform garbage collection of the data storage system based on the validation.

Abstract: The technologies described herein are generally directed toward deallocating storage resources based on metadata of a deleted object. In an embodiment, a method can include, based on an indication that a data object stored using storage resources of a data storage system is to be deleted, identifying metadata of a first chunk of storage of the data storage system. The method can further include based on the metadata of the first chunk of storage, selecting a deallocation approach from different deallocation approaches, the deallocation approach usable to designate the first chunk of storage as available for storage of one or more other data objects. Further, the method can include facilitating designation of the first chunk of storage as being available for the storage of the one or more other data objects in accordance with the deallocation approach.

Abstract: Provided are cell image analysis devices and sample analysis methods. A sample smear of a test sample is imaged by an imaging device in an assigned analysis mode to obtain first cell images of the test sample, which are identified and analyzed by a control device. If it is identified that there is preset abnormality in the sample smear, an analysis mode different from the assigned analysis mode and corresponding to the present abnormality is determined as an additional analysis mode, and the imaging device is controlled to image the sample smear in the additional analysis mode. The additional analysis mode matches with the preset abnormality, so that the imaging device is allowed to obtain cell images in the additional analysis mode, to identify and analyze the cell images matching the preset abnormality, thereby increasing processing efficiency and accuracy of processing result.

Abstract: The technologies described herein are generally directed toward deallocating storage resources based on metadata of a deleted object. In an embodiment, a method can include, based on an indication that a data object stored using storage resources of a data storage system is to be deleted, identifying metadata of a first chunk of storage of the data storage system. The method can further include based on the metadata of the first chunk of storage, selecting a deallocation approach from different deallocation approaches, the deallocation approach usable to designate the first chunk of storage as available for storage of one or more other data objects. Further, the method can include facilitating designation of the first chunk of storage as being available for the storage of the one or more other data objects in accordance with the deallocation approach.

Abstract: Embodiments are directed towards methods for purifying a reclaimed polymer.

Abstract: Embodiments are directed towards methods for purifying a reclaimed polymer.

Abstract: A system can determine a first correlation between respective percentages of stored garbage and respective amounts of garbage of a block storage system based on determining the respective amounts of garbage among first blocks of the respective blocks that satisfy respective criterions of the respective percentages of stored garbage. The system can, based on the first correlation, determine a second correlation between an estimated throughput applicable to reclaiming garbage in the block storage system and the respective amounts of garbage of the block storage system. The system can, based on the first correlation and the second correlation and for a specified target reclamation throughput, determine a corresponding first percentage of stored garbage of the respective percentages of stored garbage. The system can perform copy-forward garbage collection on second blocks of the block storage system that satisfy a criterion defined with respect to the first percentage of stored garbage.

Abstract: A blood detection method is provided, including: treating a blood sample with a first reagent to obtain a test sample, wherein the first reagent includes a hemolytic agent for lysing red blood cells in the blood sample into fragments having light scattering characteristics significantly different from those of platelets; passing particles in the test sample through a detection area of an optical detection system one by one, to obtain optical information of the test sample; and obtaining optical information of platelets according to at least two types of the optical information of the test sample. In the method, a platelet count is obtained by lysing red blood cells in a blood sample, and white blood cell subpopulations can be also differentiated.

Abstract: Embodiments of the present invention relate to a sample image photographing method and a corresponding sample image photographing apparatus.

Abstract: Disclosed are a blood analysis system, a blood analyzer, a blood analysis method and a storage medium. The blood analysis method includes: acquiring at least two types of optical signals of a test sample derived from a blood sample, wherein red blood cells in the test sample are lysed, blood cells in the test sample are stained by a fluorescence dye, and the at least two types of optical signals include scattered light signals and/or fluorescent signals; generating a scattergram based on the at least two types of optical signals; identifying a preset region in the scattergram based on the at least two types of optical signals; and acquiring detection data of a platelet subpopulation based on the preset region.

Abstract: A method, system and storage medium for providing an alarm for indicating that an abnormality is present in a sample analyzer are provided. The method includes: mixing a first aliquot of a blood sample with a diluent agent to prepare a first test sample; mixing a second aliquot of the blood sample with a lytic reagent to prepare a second test sample; detecting electrical impedance signals of the first test sample; detecting at least two types of optical signals of the second test sample; acquiring first platelet detection data based on the electrical impedance signals; acquiring second platelet detection data based on the at least two types of optical signals; acquiring an evaluation result based on a difference between the first platelet detection data and the second platelet detection data; determining whether the evaluation result meets a preset condition to provide an alarm.

Abstract: The present invention relates to a blood cell analyzer, which includes a sample aspiration device used for aspirating a blood sample of a subject to be tested, a sample preparation device used for preparing a test sample, an optical detection device used for testing the test sample to obtain optical information, and a processor. The processor obtains from first optical information of a first test sample a first leukocyte parameter of a first target particle population in the first test sample; obtains from second optical information of a second test sample a second leukocyte parameter of a second target particle population in the second test sample, the first or second leukocyte parameters including a cell characteristic parameter; and on the basis of the first leukocyte parameter and the second leukocyte parameter, obtains an infection marker parameter for evaluating an infection state of the subject, and outputs the infection marker parameter.

Abstract: A blood cell analyzer, a method, and a use of an infection marker parameter. The blood cell analyzer includes: a sample aspiration device for aspirating a blood sample of a subject to be tested, a sample preparation device for preparing a test sample, an optical detection device for detecting the test sample to obtain optical information, and a processor. The processor obtains at least one leukocyte parameter of at least one leukocyte particle population in the test sample from the optical information, obtains an infection marker parameter on the basis of the at least one leukocyte parameter, and outputs the infection marker parameter, the infection marker parameter being used for predicting whether the subject is likely to progress to sepsis within a certain time period starting from when the blood sample to be tested is collected. Therefore, risk of sepsis can be quickly and accurately predicted in advance.

Abstract: A reagent, a method for differentiating platelets under a hemolysis condition using the reagent and a blood cell analyzer are provided. The reagent includes a first reagent as a hemolytic agent, and a second reagent which is a membrane-specific dye or a mitochondrion-specific dye. By using the reagent, the method and the blood cell analyzer, platelets can be differentiated and an alarm about reticulocytes can be provided under a hemolysis condition, and white blood cell can further be classified and counted, thereby quickly and accurately analyzing a blood sample in a single channel.

Abstract: A reagent, a method for differentiating platelets under a hemolysis condition using the reagent and a blood cell analyzer are provided. The reagent includes a first reagent as a hemolytic agent, and a second reagent which is a membrane-specific dye or a mitochondrion-specific dye. By using the reagent, the method and the blood cell analyzer, platelets can be differentiated and an alarm about reticulocytes can be provided under a hemolysis condition, and white blood cell can further be classified and counted, thereby quickly and accurately analyzing a blood sample in a single channel.

Abstract: A blood detection method is provided, including: treating a blood sample with a first reagent to obtain a test sample, wherein the first reagent includes a hemolytic agent for lysing red blood cells in the blood sample into fragments having light scattering characteristics significantly different from those of platelets; passing particles in the test sample through a detection area of an optical detection system one by one, to obtain optical information of the test sample; and obtaining optical information of platelets according to at least two types of the optical information of the test sample. In the method, a platelet count is obtained by lysing red blood cells in a blood sample, and white blood cell subpopulations can be also differentiated.

Abstract: Embodiments of the present invention relate to a sample image photographing method and a corresponding sample image photographing apparatus.