64 research outputs found

    Lobectomy with Bronchoplasty and Reconstruction of Pulmonary Artery by Minitrauma-technique for Lung Cancer

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    Background and objective To research the effect and practicalbility of lobectomy with bronchoplasty and reconstruction of pulmonary artery by minitrauma-technique for lung cancer. Methods We retrospectibely reviewed our experience on 61 cases being lobectomy with bronchoplasty and bronchoplasty with or without video assisted thoracic small incision surgery for lung cancer from July 2005 to June 2009 from Shandong Provincal Hospital and 46 cases simultaneously by routine posterolateral incision. All patients whose bronchus and/or pulmonary artery were involved underwent the operation and experienced the bronchial sleeve/wedge resection or reconstruction of the pulmonary artery. Results All patients were done operation successfully and there were no operative mortality and no occurrence of anastomosis stenosis as well as fistula. The small incisions’ length was from 8 cm-15 cm while the routine posterolateral incision’s length was 25 cm-35 cm. The patients done the operation of small incision had less postoperative shoulder joint dysfunction and had better quality of life compaired to the patients done the routine posterolateral incision. Conclusion Lobectomy with bronchoplasty and reconstruction of pulmonary artery by minitrauma-technique for lung cancer could finished the same work with the traditional thoracic lateral incision and had less trauma, less pain, less recovery time

    Promoted Photocharge Separation in 2D Lateral Epitaxial Heterostructure for Visible‐Light‐Driven CO2 Photoreduction

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    Photocarrier recombination remains a big barrier for the improvement of solar energy conversion efficiency. For 2D materials, construction of heterostructures represents an efficient strategy to promote photoexcited carrier separation via an internal electric field at the heterointerface. However, due to the difficulty in seeking two components with suitable crystal lattice mismatch, most of the current 2D heterostructures are vertical heterostructures and the exploration of 2D lateral heterostructures is scarce and limited. Here, lateral epitaxial heterostructures of BiOCl @ Bi2O3 at the atomic level are fabricated via sonicating‐assisted etching of Cl in BiOCl. This unique lateral heterostructure expedites photoexcited charge separation and transportation through the internal electric field induced by chemical bonding at the lateral interface. As a result, the lateral BiOCl @ Bi2O3 heterostructure demonstrates superior CO2 photoreduction properties with a CO yield rate of about 30 ”mol g−1 h−1 under visible light illumination. The strategy to fabricate lateral epitaxial heterostructures in this work is expected to provide inspiration for preparing other 2D lateral heterostructures used in optoelectronic devices, energy conversion, and storage fields

    Improvement of affine iterative closest point algorithm for partial registration

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    In this study, partial registration problem with outliers and missing data in the affine case is discussed. To solve this problem, a novel objective function is proposed based on bidirectional distance and trimmed strategy, and then a new affine trimmed iterative closest point algorithm is given. First, when bidirectional distance measurement is applied, the ill‐posed partial registration problem in the affine case is prevented. Second, the overlapping percentage is solved by using trimmed strategy which uses as many correct overlapping points as possible. The authors’ method computes the affine transformation, correspondence and overlapping percentage automatically at each iterative step. In this way, it handles partially overlapping registration with outliers and missing data in the affine case well. Experimental results demonstrate that their method is more robust and precise than the state‐of‐the‐art algorithms. It also has good convergence and similar running time with traditional algorithms

    Chitin Oligosaccharide and Chitosan Oligosaccharide: Two Similar but Different Plant Elicitors

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    Publisher's version/PDFNatural resources have been traditionally used in agriculture by humans. For example,crab and shrimp shell powder has been applied to control crop disease and improve soil fertility (Ha and Huang, 2007). On the other hand,chitin is an important structural component in fungal cell walls and can be degraded by plant chitinases to eradicate fungal infection (Grover, 2012). Plant cells can recognize chitin and chitin-derived molecules to elicit immune response. Since the 1980s, chitin and its deacetylation product chitosan have been used for crop farming as biopesticides, biofertilizers,seed coating formulation,and agricultural film (El Hadramietal.,2010; Hadwiger, 2013; Trouvelotetal., 2014). In order to overcome the poor solubility obstacle to chitin and chitosan application,soluble chitin oligosaccharides (CTOS and chitosan oligosaccharides (CSOS) are prepared from these polysaccharides.The effects of CTOS and CSOS on crop disease control were validated by several researches (Yin et al., 2010). Several biopesticides or biofertilizers have been developed based on these two oligosaccharides. However, the quantity and quality of the research on CTOS is much better than that on CSOS. Some papers even claimed that CSOS had no effect on plant disease control (Vander et al.,1998). However, based on the previous works (Cabrera et al., 2006;Maksimov et al., 2011;Guoetal., 2012), just like CTOS,CSOS are potent pathogen-associated molecular patterns (PAMP)

    Do Migrants Really Save More? Understanding the Impact of Remittances on Savings in Rural China

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    This paper studies the impact of remittances on the savings behaviour of rural households in China, using a cross-sectional survey. Allowing for endogeneity and left-censoring of remittances, we find that the marginal propensity to save out of remittances is well below half of that out of other sources of incomes. Moreover, we find no evidence of any direct effect of remittances on either capital input or gross output of farm production. These findings are in line with recent studies which conclude that remittances are largely used for consumption purposes by rural Chinese households and there is no link between migration and productive investment.Growth and cycles; recessions; technical efficiency; technical progress.

    Development of a Runaway Vehicle Protective Barrier System Using Simulation and Full-Scale Crash Testing

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    Effective road safety plays an important role in achieving sustainable development goals worldwide. A large number of accidents occur on roads every year, resulting in countless losses of people, vehicles, and roads; as such, the problem of loss of vehicle control has increasingly attracted the attention of scholars. Different vehicle protective measures, such as increasing the friction of tires or applying energy-absorbing materials, have been applied; however, their application is not yet fully effective. In this paper, a flexible protective barrier system is proposed for the protection of runaway vehicles, which can successfully stop the vehicle and ensure the safety of passengers. At the same time, the system can be recycled, which means that costs can be saved, to a certain extent. Accurate finite element simulation and real vehicle tests are conducted to verify the effectiveness of the protective system. The proposed flexible protection system is found to be effective in intercepting different types of runaway vehicles, while no major damage occurred to the vehicle itself, thus indirectly ensuring the safety of the occupants. The research lays a foundation for subsequent road safety protection and maintenance of sustainable development

    Promoted Photocharge Separation in 2D Lateral Epitaxial Heterostructure for Visible-Light-Driven CO2 Photoreduction

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    Photocarrier recombination remains a big barrier for the improvement of solar energy conversion efficiency. For 2D materials, construction of heterostructures represents an efficient strategy to promote photoexcited carrier separation via an internal electric field at the heterointerface. However, due to the difficulty in seeking two components with suitable crystal lattice mismatch, most of the current 2D heterostructures are vertical heterostructures and the exploration of 2D lateral heterostructures is scarce and limited. Here, lateral epitaxial heterostructures of BiOCl @ Bi2O3 at the atomic level are fabricated via sonicating-assisted etching of Cl in BiOCl. This unique lateral heterostructure expedites photoexcited charge separation and transportation through the internal electric field induced by chemical bonding at the lateral interface. As a result, the lateral BiOCl @ Bi2O3 heterostructure demonstrates superior CO2 photoreduction properties with a CO yield rate of about 30 ”mol g−1 h−1 under visible light illumination. The strategy to fabricate lateral epitaxial heterostructures in this work is expected to provide inspiration for preparing other 2D lateral heterostructures used in optoelectronic devices, energy conversion, and storage fields
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