Hypertensive brain stem encephalopathy(HBE) is a rare, under diagnosed subtype of hypertensive encephalopathy(HE) which is usually reversible, but with a potentially fatal outcome if hypertension is not managed prompt...Hypertensive brain stem encephalopathy(HBE) is a rare, under diagnosed subtype of hypertensive encephalopathy(HE) which is usually reversible, but with a potentially fatal outcome if hypertension is not managed promptly. To the best of our knowledge, only one case of HE with brain stem hemorrhage has been reported. We report a case of HBE with pontine hemorrhage in a 36-year-old male patient. The patient developed severe arterial hypertension associated with initial computed tomography showing the left basilar part of pons hemorrhage, fluid-attenuated inversion-recovery showing hyperintense signals in the pons and bilateral periventricular, anterior part of bilateral centrum ovale. The characteristic clinical findings were walking difficulty, right leg weakness, and mild headache with nausea which corresponded to the lesions of MR imagings. The lesions improved gradually with improvements in hypertension, which suggested that edema could be the principal cause of the unusual hyperintensity on magnetic resonance images.展开更多
Fabric of carbonate rock is the important foundation and one of main research contents for study on carbonate sedimentology,and has always been the attention of the academic circles.Botryoidal structures from the Sini...Fabric of carbonate rock is the important foundation and one of main research contents for study on carbonate sedimentology,and has always been the attention of the academic circles.Botryoidal structures from the Sinian Dengying Formation in the Sichuan Basin is a kind of special carbonate fabric,the fabric is named after the shape of a grape.In this paper,from four aspects of the research status,the definition of the botryoidal structures and the related terms,the construction characteristics of the botryoidal structures,the component of the botryoidal structures,geochemical characteristics and the genesis of the botryoidal structures are reviewed.It points out the current research issues of botryoidal structures from the Sinian Dengying Formation in the Sichuan Basin,and put forward that future research should focus on the accurate analysis of its internal construction,precipitation mechanism of the major components,and the construction mechanism of botryoidal structures.展开更多
Target detection technology has been widely used,while it is less applied in portable equipment as it has certain requirements for devices.For instance,the inventory of rebar is still manually counted at present.In th...Target detection technology has been widely used,while it is less applied in portable equipment as it has certain requirements for devices.For instance,the inventory of rebar is still manually counted at present.In this paper,a lightweight network that adapts mobile devices is proposed to accomplish the task more intelligently and efficiently.Based on the existing method of detection and recognition of dense small objects,the research of rebar recognition was implemented.After designing the multi-resolution input model and training the data set of rebar,the efficiency of detection was improved significantly.Experiments prove that the method proposed has the advantages of higher detection degree,fewer model parameters,and shorter training time for rebar recognition.展开更多
文摘Hypertensive brain stem encephalopathy(HBE) is a rare, under diagnosed subtype of hypertensive encephalopathy(HE) which is usually reversible, but with a potentially fatal outcome if hypertension is not managed promptly. To the best of our knowledge, only one case of HE with brain stem hemorrhage has been reported. We report a case of HBE with pontine hemorrhage in a 36-year-old male patient. The patient developed severe arterial hypertension associated with initial computed tomography showing the left basilar part of pons hemorrhage, fluid-attenuated inversion-recovery showing hyperintense signals in the pons and bilateral periventricular, anterior part of bilateral centrum ovale. The characteristic clinical findings were walking difficulty, right leg weakness, and mild headache with nausea which corresponded to the lesions of MR imagings. The lesions improved gradually with improvements in hypertension, which suggested that edema could be the principal cause of the unusual hyperintensity on magnetic resonance images.
基金This study was supported by the National Natural Science Foundation of China(Grant No.41402126)the National Science and Technology Major Project(Grant No.2016ZX05004002-001).
文摘Fabric of carbonate rock is the important foundation and one of main research contents for study on carbonate sedimentology,and has always been the attention of the academic circles.Botryoidal structures from the Sinian Dengying Formation in the Sichuan Basin is a kind of special carbonate fabric,the fabric is named after the shape of a grape.In this paper,from four aspects of the research status,the definition of the botryoidal structures and the related terms,the construction characteristics of the botryoidal structures,the component of the botryoidal structures,geochemical characteristics and the genesis of the botryoidal structures are reviewed.It points out the current research issues of botryoidal structures from the Sinian Dengying Formation in the Sichuan Basin,and put forward that future research should focus on the accurate analysis of its internal construction,precipitation mechanism of the major components,and the construction mechanism of botryoidal structures.
基金Hainan Science and Technology Project,which is Research and development of intelligent customer service system based on deep learning(No.ZDYF2018017)Thanks to Professor Caimao Li,the correspondent of this paper.
文摘Target detection technology has been widely used,while it is less applied in portable equipment as it has certain requirements for devices.For instance,the inventory of rebar is still manually counted at present.In this paper,a lightweight network that adapts mobile devices is proposed to accomplish the task more intelligently and efficiently.Based on the existing method of detection and recognition of dense small objects,the research of rebar recognition was implemented.After designing the multi-resolution input model and training the data set of rebar,the efficiency of detection was improved significantly.Experiments prove that the method proposed has the advantages of higher detection degree,fewer model parameters,and shorter training time for rebar recognition.
