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Copyright of South Architecture / Nanfang Jianzhu is the property of South Architecture 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.)

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Copyright of Application Research of Computers / Jisuanji Yingyong Yanjiu is the property of Application Research of Computers Edition 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.)

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Copyright of Electronic Components & Materials is the property of Electronic Components & Materials 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.)

ObjectiveTo establish a new prognostic model, MACLF, for predicting the short-term prognosis of hepatitis B virus-associated acute-on-chronic liver failure (HBV-ACLF), and to investigate its value in predicting the short-term prognosis of HBV-ACLF. MethodsA retrospective cohort study was performed for the clinical data of 270 patients with HBV-ACLF who were admitted to The First Affiliated Hospital of Nanchang University from January 2015 to November 2018. The patients were divided into survival group with 153 patients and death group with 117 patients according to their conditions after 3 months of treatment, and influencing factors for the short-term prognosis of HBV-ACLF were analyzed. The chi-square test was used for comparison of categorical data between two groups, A binary logistic regression analysis was performed for statistically significant indices determined by multivariate analysis and a model was established. and the Mann-Whitney U test was used for comparison of continuous data between two groups. A binary logistic regression analysis was used for multivariate analysis, a binary logistic regression analysis was performed for statistically significant indices determined by multivariate analysis and a model was established, and the receiver operating characteristic (ROC) curve was plotted to evaluate the value of MACLF in predicting the short-term prognosis of HBV-ACLF. ResultsThe univariate analysis showed that there were significant differences between the survival group and the death group in free triiodothyronine (FT3), thyroid stimulating hormone, international normalized ratio, neutrophil-lymphocyte ratio (NLR), platelet count (PLT), alanine aminotransferase, aspartate aminotransferase-alanine aminotransferase ratio, total bilirubin (TBil), albumin, creatinine, total cholesterol, triglyceride, sodium, alpha-fetoprotein, serum ferritin, Child-Turcotte-Pugh (CTP) class, Model for End-Stage Liver Disease (MELD) score, and complications (hepatic encephalopathy, hepatorenal syndrome, spontaneous peritonitis, gastrointestinal bleeding, and pulmonary infection) (all P＜0.05). The multivariate analysis showed that TBil (odds ratio ［OR］=1.007, P=0.001), INR (OR=5.750, P＜0.001), FT3 (OR=0.084, P=0.003), PLT (OR=0.987, P=0.022), hepatorenal syndrome (OR=7.146, P=0.045), and pulmonary infection (OR=3.816, P=0.023) were independent influencing factors for the short-term prognosis of HBV-ACLF. Therefore, a new model of MACLF was established for the short-term prognosis of HBV-ACLF: Logit (P)=0.007×［TBil (umol/L)］+2.181×INR-2.762×［FT3 (pg/mL)］-0.014×［PLT (×109/L)］+1.797×［hepatorenal syndrome (with: 1; no: 0)］+1.339×［pulmonary infection (with: 1; no: 0)］-2.291. The ROC curve analysis showed that MACLF had significantly higher area under the ROC curve (0.934) and Youden index(0.774) than CTP class, MELD, and MELD combined with serum sodium concentration. ConclusionThe new model of MACLF has a good value in predicting the short-term prognosis of patients with HBV-ACLF after 3 months of treatment. [ABSTRACT FROM AUTHOR]

A negative temperature coefficient (NTC)-semiconductor bridge (SCB) was prepared to improve the safety of SCB explosive initiator by paralleling a NTC thermistor to SCB, which is able to meet the requirement of high insensitiveness in 1.5 A and maximum 2.0 A non-firing stimuli tests. The split ratios at 1.0 A and 1.5 A after paralleling NTC thermistor to SCB were analyzed. Capacitance discharge ignition test, constant current excitation test and ignition sensitivity test were made to study the ignition performances of SCB, NTC-SCB and NTC-SCB after 1.5 A, 2.25 W and 5 min safe current test. Results show that the split ratios of NTC thermistor are about 35% and 62%， and thermal equilibrium temperatures are about 112 °C and 170 °C in 1.0 A, 1.00 W and 5 min, and 1.5 A, 2.25 W and 5 min safe current test, respectively. The ignition time and critical ignition energy are not show significant changes at 33 μF/30 V, but significantly increase at 7.0 A due to slow energy input rate and NTC thermistor shunt. Furthermore, 99.9% firing current of NTC-SCB increases from 2.329 A to 3.709 A after paralleling NTC thermistor and further increases from 3.709 A to 4.285 A after 1.5 A, 2.25 W and 5 min safe current test, which can be applied to the devices with ignition current greater than 5.571 A. [ABSTRACT FROM AUTHOR]