Search

Based on the environmental conditions， driving characteristics and other traffic information， the emission characteristics of heavy-duty diesel trucks in Mid-Southern Liaoning Urban Agglomerations was analyzed， a typical city in low temperature areas. The on-board test results were utilized to localize the emission factors of Guidebook and IVE model， and the emission factor database of heavy-duty diesel trucks in Mid-Southern Liaoning urban agglomerations was obtained. The results show that the average speed of heavy-duty diesel trucks on various road types in winter is higher than in summer， and the traffic flow is the largest on suburban roads， followed by urban roads and highways. The pollutant emission factors of heavy-duty diesel trucks decrease with the increase of emission standards. When the heavy-duty diesel truck is 50% loaded， the pollutant emissions are 1.4~5.5 times that of the no-load state. The emission of pollutants from heavy-duty diesel trucks in winter is 1.31~1.64 times that in summer. For National III heavy-duty diesel trucks， the measured results of CO， NOx and PM emission factors are 0.5~0.8 times and 1.1~1.3 times of Guidebook and IVE model， respectively. [ABSTRACT FROM AUTHOR]

Traditional ultrasonic guided wave imaging detection methods are difficult to accurately characterize structural damage details. In order to obtain detailed features of the damage, the deconvolutional neural network model via deep learning is proposed to investigate the super-resolution imaging problem of subwavelength debonding defects in laminate plates. Initial imaging results are obtained by finite element simulation with the total focusing method. The labeled 12 550 damage images are trained and tested based on extended database expanded by data enhancement method. The results show that compared with the original full-focus imaging algorithm, the deconvolution neural network model improves the accuracy of damage location by 5%, the imaging accuracy is higher than 91%, and the positioning error is lower than 1.8 mm, indicating that the proposed method can significantly improve the resolution of network imaging results and better display the details of subwavelength damage. The above results show that the proposed method has high detection efficiency and does not require manual experience, and has good application value in engineering practice. [ABSTRACT FROM AUTHOR]

Various aquatic diseases occur frequently in recent years, particularly with the rapid development of the aquaculture industry. Once these diseases spread very rapidly, a very serious risk can be put on aquaculture. Furthermore, the network data of aquatic diseases also presents highly dispersed, multi-source heterogeneous features with the development of Internet technology. It is a high demand to rapidly and accurately obtain the required information, due to the explosive growth of network data. However, traditional information acquisition cannot fully meet the search engines. The retrieval keywords or shallow semantic analysis can bring a large number of related web links, leading to vague and redundant answers. The intelligent Q&A system can be selected to support the users' natural language input, and then accurately capture the user intent, finally returning concise and accurate answers. Among them, the emergence and rapid development of knowledge graphs can provide a high-quality knowledge base for intelligent question-answering systems, in order to promote the application of question-answering systems in various fields. The knowledge graph construction can be divided mainly into four steps: data acquisition, ontology construction, knowledge extraction and storage. Firstly, the crawler technology is used to obtain the relevant aquatic disease data, and then data preprocessing can be performed, including data cleaning and analysis. Secondly, the aquatic diseases ontology can be constructed using the data content and representation characteristics, in order to predefine the relations and properties types between entities. As such, the boundaries of knowledge extraction are clarified during this time. Secondly, the rule logic can be used to extract the semi-structured data. The entity and relation joint extraction is then used to extract unstructured data. Finally, the extracted triple data is stored in the Neo4j graph database, in order to realize the visual management of the knowledge graph and a certain degree of knowledge reasoning. In this study, a new text annotation system of "aquatic disease + relationship +BMES" was proposed in the unstructured knowledge. The relationship extraction was also integrated into the named entity recognition task. Then, the ternary model was directly constructed to transform the entity relationship extraction into sequence annotation, in order to improve the annotation efficiency at least twice for the joint extraction of entity and relationship. At the same time, the triplet data was obtained for the triplet-building module using label matching and mapping. The overlapping relation extraction was then solved in this case. The BERT-BiLSTM+CRF end-to-end model was used to carry out the test. The test results showed that the triad extraction shared a high recall rate (89.64%), accuracy (94.04%), and F1 (91.34%), which was significantly better than CNN+BiLSTM+CRF and BiLSTM+CRF models. The extracted knowledge was stored in the Neo4j graph database, and then realized knowledge visualization management and knowledge reasoning analysis. The aquatic disease knowledge map presented high precision and fine granularity. The finding can provide a new idea for the field of intelligent Q&A. Anyway, the semi-automatic construction of a knowledge graph can also offer technical support for the recommendation system, knowledge base construction, search and application knowledge base construction. [ABSTRACT FROM AUTHOR]

The electrocardiogram (ECG) signal classification is a significant research topic in the healthcare field. Most existing methods could not effectively reduce the missed diagnosis rate of classification with small- size samples and tackle the complexity of preprocessing operations. An electrocardiogram signal classification algorithm based on the improved deep residual shrinkage networks was proposed, namely the DRSL algorithm. Firstly, the small-size classification samples were augmented with the synthetic minority over-sampling tech- nique to solve the classification imbalance problem. Secondly, the spatial features were extracted by mean of the improved deep residual shrinkage networks, where the residual module can avoid overfitting caused by deepening of network layers, and the squeeze-and-excitation operation with soft threshold subnetwork can ex- tract important local features and remove noises automatically. Then, the time features were extracted with the long short-term memory networks. Finally, the classification results were output with the fully connected neural networks. The experimental results on the MIT-BIH arrhythmia database show that, the proposed algorithm is superior to IDRSN, DRSN, GAN+2DCNN, CNN+LSTM_ATTENTION, SE-CNN-LSTM in terms of classification performances. [ABSTRACT FROM AUTHOR]

[Objective] Targeting for non-destructive monitoring of leaf water content in mango trees, hyperspectral index model for leaf water content in mango was established to lay a basis for fields water management, prevention of sunscald and production increase. [Method] In this study, measurements were conducted in an Integrated Remote Sensing Experimental Site for mango trees located in the Baise National Agricultural Sci-tech Zone, Guangxi, China. Leaf samples were collected using the detached branch method. Leaf reflectance ( Rλ) and biochemical parameters ( leaf water content, dry matter mass content, chlorophyll content, carotenoid content) were measured for each leaf sample. Based on the measured data, the PROSPECT model was calibrated and used for data simulation. 85 % of leaf samples were randomly selected from the measured dataset ( n = 200) and the simulated database ( n = 1000) served as the calibration subset ( n = 1020) . Hyperspectral index models for estimating the leaf water content of mango were calibrated from the calibration subset, and validated with the remaining 15% of leaf samples to access the accuracy of the model. [ Result] After correcting the PROSPECT model with measured data, the overall accuracy of the model simulation was improved. By comparing the distribution characteristics of the measured and simulated biochemical components data, it was concluded that the spectral data in the simulated database was similar to the measured spectral data. The spectral absorption bands of leaves were analyzed, and the results showed that there were strong absorption troughs near 1400 and 1900 nm. The spectral index of mango leaf water content was developed, and it was found that the correlation between the double difference index[ DDn( 1255, 25)] and the leaf water content was the best, and the root-mean-square error was the smallest ( correlation coefficient was 0. 86, root mean square error was 2. 58 X 10-3 g/cm² ). [ DDn( 1255,25)] was the optimal hyperspectral index of water content in mango leaves. Using polynomial fitting[ DDn( 1255,25) ] and the water content of mango leaves, the results showed that the coefficient of determination ( R² ) of the linear polynomial regression model based on[ DDn( 1255,25)] was 0. 73, and the F test value was 2757. 18, which had the best performance in the verification set. [ Conclusion] The correlation between[ DDn( 1255,25)] index and water content of mango leaves is the highest. The linear polynomial regression model based on the[ DDn( 1255,25)] can estimate the leaf water content of mango trees quickly and nondestructively which can be applied to fields of water management, prevention of sunscald and other production activities. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of China Medical University is the property of Journal of China Medical University Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cotton Textile Technology is the property of Cotton Textile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Cotton Textile Technology is the property of Cotton Textile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Agricultural Outlook (1673-3908) is the property of Institute of Agricultural Information, Chinese Academy of Agricultural Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Atomic Energy Science & Technology is the property of Editorial Board of Atomic Energy Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Wool Textile Journal is the property of National Wool Textile Science & Technology Information Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Wool Textile Journal is the property of National Wool Textile Science & Technology Information Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Wool Textile Journal is the property of National Wool Textile Science & Technology Information Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of West China Journal of Stomatology is the property of Sichuan University, West China College of Stomatology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The study was explored the direction and trends of microalgae research in the past 10 years in China and abroad. CiteSpace was a software used to visualize and analyze the literature on microalgae published in the core database of CNKI from 2010 to 2023. The results showed that the analysis showed the overall trend of Chinese literature publication on microalgae as the research topic had been stable in the past 10 years, while the publication of English literature had fluctuated significantly. Keywords co-occurrence and emergence analysis showed that main research keywords of microalgae were Chlorella, oil, fatty acid, biodiesel, marine algae, Phaeodactylum tricornutum, Chlorella pyrenoidosa, etc. Keywords cluster analysis showed that the larger clusters are Skeletonema costatum, Taihu lake, livestock and poultry breeding wastewater, Chlorella, fatty acid, wastewater treatment, Haematococcus pluvialis, Dunaliella salina and biomass production. The study indicates that the research direction of microalgae in recent 10 years mainly focuses on bioenergy, aquatic feed, water pollution treatment and the cultivation and development of economically valuable algae species. The exploitation and utilization of algae seed as feed resource has a good application prospect. [ABSTRACT FROM AUTHOR]

In order to understand the genomic characteristic and evolutionary relationship of Listeria monocytogenes LMXJ15 from Xinjiang, PacBio and Illumina HiSeq platforms were used to have the whole genome sequencing of LMXJ15, then the relevant software were applied to predict and annotate the sequenced data. Multilocus sequence typing (MLST) and collinearity analysis were conducted to analyze the homologies among the LM strains. The results showed that the length of LMXJ15 genome was 3 017 732 bp with a GC value of 37.81%. It was predicted to contain 3154 protein-coding genes with a total length of 2 734 315bp. The genome of LMXJ15 contained 6 rRNA operons and 57 tRNA, 88 virulence genes being predicted from the genome. Through the CRT prediction, a CRISPR sequence was found in the LMXJ15 genome sequence. A total 2 241 genes of 3 GO contents were obtained by comparing GO database. Total 88 possible virulence genes were predicted. MLST analysis showed that LMXJ15 was sequence type (ST) 8 and belonged to CC8 (clonal complex 8). Evolutionary analysis showed that the LMXJ15 had a close evolutionary relationship with two clinical IZSAM_Lm_15_17439_A144 isolates from Italy, LmN1546 isolates from Switzerland, R479a isolates from smoked salmon, and had the same ST type and serotype (1/2a), and comparative genomics among 4 LM strains showed scant collinearity. In summary, we preliminarily analyzed the genomic characteristics and virulence genes situation of LMXJ15 isolate, which may provide basic data for analysis of the evolution relationship and the virulence of L. monocytogenes in Xinjiang province. [ABSTRACT FROM AUTHOR]

OBJECTIVE: To probe into the clinical trial registration and methodological design characteristics of anticoagulants during pregnancy based on ClinicalTrials database. METHODS: Based on keywords related to anticoagulants and pregnancy, the ClinicalTrials clinical trial registration platform was retrieved, the title and intervention measures were selected, and relevant information was extracted according to the registration content. Registration characteristics such as number of registrations, study phase, country / region, and study type were analyzed, methodological design characteristics such as drug types involved, pregnancy-related diseases, observational outcomes, blind method, and sample size were evaluated. RESULTS: Through two-person search and screening, 109 studies related to anticoagulants in pregnancy were finally included, and a total of 19 relevant studies were involved in China. The main purposes of the study design were intervention study and parallel control study for prevention and treatment use of anticoagulants. Fifty studies were blinded, with more studies blinded to the investigator and the patient. Aspirin and low molecular weight heparin were evaluated in 70 and 50 studies respectively, pregnancy hypertension and eclampsia, recurrent pregnancy loss and thrombotic disease were the top three conditions. In the completed clinical studies, the average sample size and duration were 780 cases and 3. 9 years, respectively. Pilot study and interim analysis were highlighted in the studies terminated, withdrawn and suspended. CONCLUSIONS: Through the analysis of clinical study characteristics and methodology design of ClinicalTrials platform, it can effectively provide reference for the design and management of clinical trials of anticoagulants during pregnancy in China. [ABSTRACT FROM AUTHOR]

OBJECTIVE: To evaluate the efficacy and economy of Kuhuang injection for viral hepatitis with damp heat syndrome. METHODS: The database was retrieved for the clinical research of Kuhuang injection and Shuganning injection in the treatment of viral hepatitis, the clinical efficacy was evaluated by the network Meta-analysis method, and the economical efficiency was evaluated by the minimum cost method. RESULTS: A total of 22 articles were included in this study. Network Meta-analysis showed that the efficacy of Kuhuang injection and Shuganning injection were basically the same. Results of the minimum cost method showed that the daily drug cost of Kuhuang injection (42. 52 yuan) was lower than that of Shuganning injection (323. 80 yuan). CONCLUSIONS: The efficacy of Kuhuang injection for viral hepatitis with damp heat syndrome is basically the same as Shuganning injection, yet the cost is lower than Shuganning injection, which has economic advantages. [ABSTRACT FROM AUTHOR]

Comastoma polycladum is one of the original plant of Tibetan medicine “Zangyinchen”, which contains abundant medical components. To further know the transcriptome of C. polycladum and enrich its genetic information of gene annotation and metabolic pathway, the Pacbio sequencing platform was used to perform full-length transcriptome sequencing of C. polycladum leaves. The results were as follows: (1 )A total of 17 Gb of sequencing data was collected, and 87 814 high-quality full-length transcripts were obtained by clustering and de-redundancy of 795 698 CCS sequences. (2 )Comparing with seven databases, 277 451 transcripts were annotated successfully, and in NR database with 39 214 transcripts annotated the most transcripts. A total of 26 396 transcripts were annotated to the KOG database, with 26 subcategories, and a total of 39 104 transcripts with six major pathways and 40 secondary pathways to the KEGG database. A total of 39 102 transcripts were annotated to the GO database, which were divided into three major categories: molecular function, biological process and cellular component. (3 )SSR analysis yielded 22 861 SSRs, with single-base repeats being the most abundant. A total of 1 874 transcription factors and 15 166 long non-coding RNAs (LncRNAs )were identified, and the C3H transcription factor family had the most annotated transcripts. (4 )A total of 55 transcripts involved in the synthesis of monoterpenes and flavonoids were screened out. These results enrich the transcriptome information of C. polycladum, and provide significant genetic resources for further screening of candidate genes related to the synthesis of medicinal components of C. polycladum. [ABSTRACT FROM AUTHOR]

Objective: Based on the glycosylation related gene set, the TCGA⁃GTEx joint public database was used to identify genes significantly related to the occurrence and poor prognosis of pancreatic cancer, and the tissue samples of our center and in vitro experiments were used for verification. Methods: The glycosylation gene B4GALT5 related to the risk and poor prognosis of pancreatic cancer was screened through the public database, and was verified using the tissue samples of our center with clinical and prognostic information. We constructed pancreatic cancer cell lines with B4GALT5 interference and overexpression, and observed the effects of B4GALT5 on the malignant biological behavior of pancreatic cancer cells in vitro through CCK ⁃8, wound healing, transwell invasion experiments. Results: The expression of B4GALT5 in pancreatic cancer tissue was significantly higher than that in normal pancreatic tissue. The increased expression of B4GALT5 was positively correlated with the risk and poor prognosis of pancreatic cancer, and negatively correlated with the infiltration of CD4+T cells and NK T cells. B4GALT5 played a role in exacerbating the proliferation, movement and invasion of pancreatic cancer cells in vitro. Conclusion: The glycosylation gene B4GALT5 can promote the malignant progression of pancreatic cancer, and may be used as a new biomarker to indicate the risk and poor prognosis of pancreatic cancer. [ABSTRACT FROM AUTHOR]

Copyright of Railway Standard Design is the property of Railway Standard Design Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Railway Standard Design is the property of Railway Standard Design Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ordnance Industry Automation is the property of Editorial Board for Ordnance Industry Automation and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of East China University of Science & Technology is the property of Journal of East China University of Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Atomic Energy Science & Technology is the property of Editorial Board of Atomic Energy Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chinese Institute of Food Science & Technology is the property of Journal of Chinese Institute of Food Science & Technology Periodical Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Wool Textile Journal is the property of National Wool Textile Science & Technology Information Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

BACKGROUND: Due to the complex and diverse shapes of blood vessels in the human body, the continuous weakening of force conduction between the handle and the tip of the steerable catheter in clinical practice often causes the tip deformation to fail the surgeon’s expectation, which makes the operation more difficult. How to achieve rapid and precise deformation of the steerable catheter tip during surgery has always attracted the attention of surgeons. In recent years, the rapid development of smart materials has made it possible to remotely control the deformation of the catheter tip outside the body. OBJECTIVE: To review research progress of steerable catheter system in recent years in order to provide a valuable reference for the future development of the steerable catheter system. METHODS: Articles were retrieved from Web of Science, PubMed, CNKI and Wanfang Database, and the retrieval time limit was from 1995 to 2021. All articles were initially screened by comparing the inclusion and exclusion criteria, and 41 articles were finally included for review. According to the deformation mechanism of the steerable catheter, the functional characteristics and clinical applications of the manually steerable catheter system, the magnetically driven catheter system and the soft material driven catheter system are summarized. RESULTS AND CONCLUSION: (1) The deformation mechanisms of the steerable catheter system are various, among which: the tip of the manually manipulated catheter is operated by the distal handle, so that the force is conducted along the joystick to achieve the deformation of the tip; the magnetically driven catheter is mainly by adding a magnet part of the current or the computer-controlled permanent magnet generates a magnetic field in the patient to achieve the deformation of the tip; the soft material is used to deform the catheter tip through some stimulation such as electricity or temperature. (2) Manually manipulated catheters and magnetically driven catheters are more common in interventional surgery, but manual manipulation of catheters increases the difficulty for surgeons due to their difficulty in good control and lack of positioning accuracy. Due to the expensive cost, surgeries of magnetically driven catheters (robot catheter system) cannot be applied to all patients. Therefore, it is necessary to develop a class of steerable catheters that are inexpensive and can be precisely deformed. (3) The shape memory polymer materials are cheap and have better biocompatibility than the previous materials used in catheters, and they can be accurately deformed under some human-friendly stimulation conditions (such as temperature, humidity, magnetic field, and light) through simple programming, which has a good prospect of medical application. [ABSTRACT FROM AUTHOR]

OBJECTIVE: To probe into the molecular mechanism of Congrong Yishen granules in the treatment of oligospermia and asthenospermia based on network pharmacology. METHODS: The active components were collected and the possible targets in Congrong Yishen granules were predicted by BATMAN-TCM database and PubChem database. Genetic targets of oligoasthenospermia were collected from GeneCards, online Mendelian inheritance in man and PharmGkb database. The MLC online tool was used to intermingle the screened drug targets and disease gene targets to obtain common targets. Protein-protein interaction ( PPI) network was constructed by analyzing common targets by using STRING platform. Cytoscape software (v3. 9. 0) was used to draw the drug-active component-targetdisease network map. Gene ontology ( GO) and Kyoto encyclopedia of genes and genomes ( KEGG) enrichment analysis were carried out by the data visualization platform of Hiplot. RESULTS: Totally 101 active components and 69 disease-related targets with high correlation with oligospermia and asthenospermia were observed after being screened, which were mainly involved in signaling pathways including steroid hormone biosynthesis, NF-κB signaling pathway, estrogen signaling pathway, interleukin-17 signaling pathway, response to steroid metabolic process, steroid hormone response, and cellular ketone metabolic process. CONCLUSIONS: Congrong Yishen granules have multi-components, multi-targets and multi-pathways characteristics in the treatment of oligospermia and asthenospermia, reflecting the overall feature of Chinese medicine compound prescription, which provides new directions and new ideas for further research on the molecular mechanism of action of Congrong Yishen granules in the future. [ABSTRACT FROM AUTHOR]

OBJECTIVE: To systematically evaluate the efficacy and safety of Yiguanjian decoction combined with conventional western medicine in the treatment of ascites induced by liver cirrhosis. METHODS: CNKI, VIP, Wanfang Data, Embase, Web of science, PubMed and Clinical Trials databases were retrieved to collect randomized controlled trials that met the screening criteria (the control group received conventional western medicine, while the observation group received Yiguanjian decoction on the basis of control group ), the search time was from the establishment of the database until Feb. 2023. The Cochrane Collaboration Network bias risk assessment was used for quality assessment, and Meta-analysis was performed by using RevMan 5. 4 software. RESULTS: Totally 15 articles were enrolled, including 1 147 patients. Meta-analysis showed that compared with the control group, the treatment regimen in the observation group could improve the total effective rate (RR = 1. 31,95%CI = 1. 24-1. 40,P<0. 000 01) and reduce abdominal circumference (MD = - 8. 26,95% CI = - 10. 44-- 6. 09,P < 0. 000 01), decrease body mass (MD= -6. 86,95%CI = -8. 23--5. 48,P<0. 000 01), increase 24 h urine volume (MD = 465. 38,95%CI = 351. 27- 579. 48,P<0. 000 01), and shorten disappearance time of ascites (MD= -7. 29,95%CI = -13. 97--0. 61,P = 0. 03), and improve liver function. Meanwhile, the incidence of adverse drug reactions in the observation group decreased. CONCLUSIONS: Yiguanjian decoction can improve the efficacy of conventional western medicine treatment of cirrhotic ascites, with few adverse drug reactions. [ABSTRACT FROM AUTHOR]

A numerical model is built using hydrodynamic analysis software and time domain analysis method according to the different mooring conditions of moored ships in port. Taking a 266 000 m³ LNG ship as an example, a database of the ship's six degrees of freedom motion is built. Based on the BP neural network, a prediction model for the movement of moored ships in the harbor is established. In the model design, the number of hidden layer nodes is 26, the number of input layer neurons is 12, the number of output layer neurons is 6, and the learning rate is 0.000 1. The training results are compared with the basic database, and the results show that the prediction results are in good agreement with the comparison results of the training sample database and the test sample database. Finally, based on the model test database, the prediction model results are compared with the test data of the physical model and the applicability of the method is verified, which provides a new idea for rapid prediction of the motions of moored ships in port. [ABSTRACT FROM AUTHOR]

To establish a dual nano-DPCR method for simultaneous detection of H7 subtype and N2 subtype avian influenza virus(AIV), in this study, the HA gene of H7 subtype AIV and the NA gene of N2 subtype AIV were obtained from GenBank database, and two pairs of specific primers were designed by Primer 7.0 and Oligo 6.0 software. The optimal reaction system was determined by optimizing the reaction conditions of nano-dPCR The optimized reaction system was used to test the specificity and sensitivity of the nano-dPCR method. Throat and cloacal swab samples were collected from poultry in live poultry markets for clinical sample testing and verification. The results showed that a nano-dPCR method was successfully established for the simultaneous detection of H7 subtype(723 bp) and N2 subtype(314 bp) AIV. This method had good specificity, no specific bands were found in other subtypes of avian influenza viruses and common avian respiratory viruses. Minimum amount of nucleic acid detection of H7 subtypes of AIV and N2 subtypes of AIV respectively reached 5×10³ and 5×10³ copies/μL, its sensitivity was 10 times of the ordinary dual PCR detection method, the coincidence rate of its detecting clinical samples was 100％, it could be used for differential diagnosis of clinical samples and daily monitoring of prevention and control． [ABSTRACT FROM AUTHOR]

The goal of the paper was to assess the safety of riding shared e-scooters and determine the causes of accidents involving them. Primary data for the research were obtained through a combination of quantitative and qualitative content analysis based on deep learning by analysing data from the WoS database entered into the VOSviewer system. A quantitative observation method was used to determine the number of shared e-scooter users who do not use safety equipment such as helmets. The data obtained were processed using the Wilcoxon test designed to test the homogeneity of two random samples in the univariate case. The observation of shared e-scooter users and social networks of e-scooter service providers showed that safety equipment is not adequately used; in addition, the users often do not know the traffic rules and often violate them. Of the 256 monitored cases of using shared e-scooters, none of the users wore a safety helmet. It can thus be concluded that it is necessary to promote the rules of the safe use of shared e-scooters. Further research could focus on proposing a methodology for assessing traffic accidents involving e-scooters and a general overview of recommendations for e-scooter safe use. [ABSTRACT FROM AUTHOR]

Traditional relational databases use the artificial way to achieve index recommendations that can no longer meet the growing requirement of data, and using machine learning technology can effectively solve the index optimization problem of databases. The limitation that only recommended the index in a static database and couldn't update the index configuration in time, this paper proposed a multi-attribute index intelligent recommendation approach (MIRA) to recommend multi attribute index configurations for a set of workloads using reinforcement learning under databases with dynamically changing data. Experimental results on TPC-H datasets show that MIRA can effectively recommend the optimal index configuration for workload, and outperforms the defined comparison baselines and related reinforcement learning methods. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Chongqing University of Technology (Natural Science) is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of World Nuclear Geoscience is the property of World Nuclear Geoscience Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Brewing is the property of China Brewing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Railway Construction Technology is the property of Railway Construction Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coal Geology & Exploration is the property of Xian Research Institute of China Coal Research Institute and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coal Science & Technology (0253-2336) is the property of Coal Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Coal Science & Technology (0253-2336) is the property of Coal Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Basic Sciences Journal of Textile Universities / Fangzhi Gaoxiao Jichu Kexue Xuebao is the property of Basic Sciences Journal of Textile Universities and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Arid Land Geography is the property of Chinese Academy of Sciences, Xinjiang Institute of Ecology & Geography and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Beijing University of Technology is the property of Journal of Beijing University of Technology, Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Fly Ash Comprehensive Utilization is the property of Hebei Fly Ash Comprehensive Utilization Magazine Co., Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Interdisciplinary Studies of Literature is the property of Interdisciplinary Studies of Literature Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)