Search

Copyright of East China Geology / Huadong dizhi is the property of Editorial Department of East China Geology 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 Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research 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 Imaging Science & Photochemistry is the property of Imaging Science & Photochemistry 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.)

With lithium acetate and butyl titanate as lithium and titanium sources, and cetyltrimethylammonium bromide (CTAB) as the soft template, the sol-gel method is used to obtain CTAB-added lithium titanium by roasting. The compound (Li4Ti5O12) was pickled with hydrochloric acid to prepare a lithium titanium ion sieve (H4Ti5O12, HTO). The effects of crystal phase, morphology and time on the adsorption capacity of lithium titanium ion sieve were investigated by thermogravimetric analysis (TG-DTG), X-ray diffraction (XRD), scanning electron microscopy (SEM), contact angle and performance tests. Compared with the addition amount of CTAB, 0.1 g CTAB ionic sieve precursor has fewer impurities and pure crystal phase. The quasi-second-order kinetic correlation coefficient R²(0.997 24) of HTO is greater than that of first-order kinetic correlation coefficient R²(0.984 35), indicating that the adsorption process is consistent with chemisorption. The adsorption capacity of HTO in Li+ solution for 24 h reaches 24.44 mg/g, and after 8 times of adsorption and desorption, the adsorption capacity remains at 23.68 mg/g, only reduces by 3.1%. Therefore, HTO has good cyclic adsorption performance and stability, and has a broad market prospect. [ABSTRACT FROM AUTHOR]

Copyright of Water Conservancy & Electric Power Technology & Application is the property of Omniscient Pte. 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 Mechanical & Electrical Engineering is the property of Mechanical & Electrical Engineering Magazine 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 Signal Processing is the property of Journal of Signal Processing 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 Ecology & Rural Environment is the property of Journal of Ecology & Rural Environment 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 Chinese Mental Health Journal / Zhongguo Xinli Weisheng Zazhi is the property of Chinese Mental Health Journal 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.)

OBJECTIVE: The perioperative optimization measures of accelerated rehabilitation surgery run through the whole hospitalization period of patients with open spinal surgery. The clinical efficacy and safety of tranexamic acid in open spinal surgery were evaluated using meta-analysis. METHODS: Databases of PubMed, Embase, Ovid, Cochrane Library, CNKI, CBM, Wanfang, and VIP were searched. According to the inclusion and exclusion criteria, ten prospective randomized controlled trials were obtained. Endnote software was utilized to manage the literature. The extracted data were analyzed using Revman 5.3 software for meta-analysis, mainly analyzing the intraoperative blood loss, postoperative blood loss, total perioperative blood loss, postoperative hemoglobin, operation time, length of hospital stay, blood transfusion rate, and thrombotic complications by using tranexamic acid in open spinal surgery. RESULTS: (1) A total of 10 high-quality prospective randomized controlled studies were included in 802 patients. (2) Meta-analysis results showed that tranexamic acid significantly reduced intraoperative blood loss (MD=-210.38, 95%CI: -267.31 to -153.45, P < 0.000 01), postoperative drainage (MD=-113.40, 95%CI: -126.97 to -99.83, P < 0.000 01), total perioperative blood loss (MD=-266.85, 95%CI: -351.18 to -182.52, P < 0.000 01), and postoperative hemoglobin loss (SMD=0.20, 95%CI: 0.02-0.38, P=0.03) compared with the control group, with significant difference. Moreover, the length of hospital stay (MD=-1.09, 95%CI: -1.86 to -0.32, P=0.006) significantly reduced, and blood transfusion rate (RR=0.61, 95%CI: 0.48 to 0.79, P=0.000 1) significantly reduced. Operation time (MD=-7.75, 95%CI: -16.65 to 1.15, P=0.09) did not shorten. (3) There was no significant difference in the incidence of thrombotic complications between the tranexamic acid group and the control group (RR=0.92, 95%CI: 0.47 to 1.82, P=0.81). CONCLUSION: Tranexamic acid can significantly reduce the perioperative blood loss of open spine surgery, shorten hospital stay, lower blood transfusion rate, and is safe and reliable. The use of tranexamic acid in open spinal surgery can promote enhanced recovery of patients after surgery; the initial dose of tranexamic acid is 10-15 mg/kg, maintenance dose 1.0-2.0 mg/kg per hour. It may be the best solution for intravenous tranexamic acid in open spine surgery. [ABSTRACT FROM AUTHOR]

Objective: To investigate the characteristics of a asymmetry in adults with attention-deficit/hy peractivity disorder ( ADHD), and the relationships with ecological executive function (EF). Methods: Forty-nine a dults diagnosed with ADHD and 45 normal subjects were recruited. The self-ratings of Behavior Rating Inventory of Executive Function, Adult Version (BRlEF-A) were used to measure the ecological EF. The subjects were recorded with EEG signals during an eye-closed resting-state condition. The absolute power in a band was analyzed, and the a absolute power of different regions and the correlations with ecological executive function were analyzed. Results: The a absolute power asymmetries of frontal and forehead were lower in patients with ADHD than in normal controls ( Ps < 0. 05). The ADHD group showed significantly higher indices ofbehavioral regulation and metacogniton in BRIEF-A than control group ( Ps < 0. 001) . In the control group, the a absolute power asymmetries of FP2-FP1 (r = 0. 43, P < 0. 05) and F4-F3 ( r = 0. 43, P < 0. 05) were positively correlated with the moni tor scores, but there was no correlation between the a absolute power asymmetry and EF in adults with ADHD. Conclusion: This study demonstrated the ecological EF deficiencies exist in adults with ADHD, and abnor mal frontal a absolute power asymmetry may be involved in the neuropathological mechanism of impaired self-mo nitor ability of adult ADHD patients. [ABSTRACT FROM AUTHOR]

Objective: To explore the characteristics of resting state electroencephalogram (EEG) in adults with attention-deficit/hyperactivity disorder ( ADHD ) and their correlations with executive function deficits. Methods: Totally 33 adults with ADHD and 30 normal controls were selected to evaluate their eco-executive function by the Behavior Rating Inventory of Executive Function (Adult Version, BRIFF-A) . The absolute power of EEG at different frequency bands and their correlations with executive function deficits were analyzed. Results: The scores of all factors of ecological executive function and the absolute power of 6 wave in whole brain and the absolute power of ~ in central region were higher in ADHD group than in the control group ( P < 0. 01). The working memory scores in patients with ADHD were positively correlated with the absolute power of bilateral frontal 6 wave ( r = 0. 43, 0. 49, Ps < 0. 05), the emotional control scores were positively correlated with the absolute power of ~ wave in bilateral central regions ( r = 0. 43, 0. 49, Ps < 0. 05). Conclusion: It indicates that there are deficits of the ecological executive function in adults with ADHD. The abnormal power of 6 wave in frontal lobe and ~ wave in central parietal lobe of adult ADHD may be involved in the neuropathological mechanism of working memory deficit and poor emotion control respectively. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research 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 Hydrogeology & Engineering Geology / Shuiwendizhi Gongchengdizhi is the property of Hydrogeology & Engineering Geology 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 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 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 Asian Journals of Ecotoxicology is the property of Gai Kan Bian Wei Hui 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 effect of intersection angle on the primary and secondary atomization of vacuum induction melting gas atomization (VIGA) was studied by the combination of experiments and computational fluid dynamics CFD simulations. The VOF (volume of fluid) multiphase flow model based on the Euler-Lagrange method was used to simulate the primary atomization process and the discrete phase model (DPM) was used to simulate the breakup process and predict the particle size distribution (PSD) of Taylor analogy breakup (TAB) in secondary atomization. The results show that the simulated area of recirculation zone decreases with the increase of intersection angle. The fragmentation morphology of metal melt is presented as "fountain→umbrella" and the primary droplets size is 0.3~0.9mm. The Weber number (We) of liquid droplets is 10~90. With increasing intersection angle， the average particle size of the powders decreases gradually. Moreover， these simulation results prove reasonable， which the simulated particle size of the powders is in agreement with the experimental one when the intersection angle is 36°. [ABSTRACT FROM AUTHOR]

Copyright of Electric Power Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment Press 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 Chinese Journal of Oncology is the property of Chinese Journal of Oncology / Zhonghua Zhongliu Zazhi 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 Acta Geoscientica Sinica is the property of Acta Geoscientica Sinica 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.)

In the design process of the submerged floating tunnel, it is necessary to carry out the hydrodynamic engineering test to determine the relevant hydrodynamic parameters, and verify the feasibility of the scheme. There is no engineering case of SFT and no monitored date, the physical model test approach is critical in making breakthrough of this engineering technique. In this paper, the physical model test method of SFT was discussed with reference to the marine and ocean engineering test method. The basic principles of model tests including the dimensionless similarity criterion and the technology of fluid velocity measurement were discussed. Then hydrodynamic test contents of SFT were elaborated, covering the towing test for tunnel body, wave effect on tunnel body, plane motion mechanism (PMM) test, the circulating water channel test, the vortex-induced motion (VIM) test, the ocean basin test and the hydroelastic model test; test principles. Testing procedures and key influential factors of the result were given in detail correspondingly. [ABSTRACT FROM AUTHOR]

In this paper, the computational fluid dynamics software FLUENT was used to establish the cross-sectional flow model of the submerged floating tunnel with different characteristics in the uniform flow field, and to study the characteristics of forces and flow field of different sections. The results show that: 1) the drag coefficient and lift coefficient of ellipse section are relatively small, while those of square section are relatively large; The vortex shedding frequency of ellipse section is larger than that of square section. 2) the separation angle of square section is the smallest, while the separation angle of long-tip square section is the largest. 3) the length of back flow area and wake area of circle section is the minimum, and the length of backflow area and wake area of double square section is the maximum; the wake area of the long-tip square section has the smallest width while the square section has the largest width. [ABSTRACT FROM AUTHOR]

In this paper, 25 characterized cross-section of submerged floating tunnel were introduced, and the drag coefficients, lift coefficients, added-mass coefficients, water damping, vertical force, horizontal force and bending moment of those sections were derived; the former four were by CFD method, the latter three by potential theory. Further study subjects were proposed such as the problem of "resistance" and "yield", cross-section comparison and critical parameter analysis. [ABSTRACT FROM AUTHOR]

Copyright of China Harbour Engineering is the property of Editorial Office of China Harbour Engineering 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 Harbour Engineering is the property of Editorial Office of China Harbour Engineering 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: Clinical conservative treatment can easily lead to the recurrence of lumbar disc herniation. Backward walking is a popular rehabilitation exercise method for the treatment of lumbar disc herniation. After clinical guidance treatment, patients walk backwards and follow up statistics, confirming that walking backwards is an effective rehabilitation exercise therapy. OBJECTIVE: Based on biomechanics, the significance of backward walking for lumbar rehabilitation was explored by finite element analysis. METHODS: The three-dimensional model of lumbar spine was established based on CT images, and then the mechanical conditions of lumbar spine were simulated. The finite element method was used to examine the role of backward walking in the treatment of lumbar disc herniation from the mechanical point of view. RESULTS AND CONCLUSION: (1) The displacement of L1-L2 intervertebral disc was only 1/2 of that of the gait, and the stress of the intervertebral disc was greatly reduced when walking backwards. (2) The stress of L1-L2 intervertebral disc during gait progression was 2.35 times as much as that during walking backwards. (3) Therefore, the changes of stress and displacement of lumbar spine and intervertebral disc are smaller than that of normal gait, which reduces the pressure on nucleus pulposus and helps the recovery of patients with lumbar disc herniation. [ABSTRACT FROM AUTHOR]

Copyright of Rare Metal Materials & Engineering is the property of Northwest Institute for Nonferrous Metal Research 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 Guangdong Architecture Civil Engineering is the property of Guangdong Architecture Civil Engineering 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.)

In order to explore the pollination biology characteristics of Pleione formosana Hayata, their flowering phenology, pollen vigor, stigma receptivity, breeding systems, and insect pollination behaviors were observed for 2 consecutive years in the Daiyunshan National Nature Reserve in Fujian. It was found that Bombus trifasciatus and Bombioxylocopa chinensis are the pollinators of P. formosana. The thorax heights of Bombus trifasciatus and Bombioxylocopa chinensis were (1.4±0.2) cm and (1.5±0.2) cm, respectively, both of which were higher than the height of the pollination channel entrance by (0.8±0.2) cm. The pollinating insect enters the flower through the mid-lobe of the outer bending lip. When it finds no nectar as reward, it exits the flower; the anther cap will then open causing the viscidium of the pollinium to adhere to the back of the pollinator. When the pollinator enters the same flower or different flowers, the pollination may be completed. It is speculated that P. formosana may attract insects through its golden yellow stripes (fake nectar-guide) on its lips for pollination, which is food-deceptive. Breeding experiments showed that P. formosana is highly self-compatible and that there is no apomixis or self-pollination. The pollination success of this species depends on its pollinators. Therefore, the population density of pollinators and their frequency of visiting flowers may be important factors affecting the fruit set of P. formosana, and ultimately affect the maintenance and expansion of its population. [ABSTRACT FROM AUTHOR]

Copyright of Electric Machines & Control / Dianji Yu Kongzhi Xuebao is the property of Electric Machines & Control 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 Agro-Environment Science is the property of Journal of Agro-Environment Science Editorial Board 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 Fudan University Journal of Medical Sciences is the property of Fudan University Journal of Medical 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.)