In general, two kinds of structures are used to provide a way across a river, canal, sea, or other obstacle: bridge structures that pass over the obstacle, and tunnel structures that pass below the obstacle. Although ...In general, two kinds of structures are used to provide a way across a river, canal, sea, or other obstacle: bridge structures that pass over the obstacle, and tunnel structures that pass below the obstacle. Although the construction of both bridges and tunnels can be traced back over thousands of years, bridge–tunnel combinations that use an island as a sea-crossing fixed link (SCFL) have only been built over the past 82 years. The first such combination was probably the 6.4 km long San Francisco–Oakland Bay Bridge in the United States, which was completed in 1936. The most recently constructed SCFL combining a bridge, tunnel, and island is the Hong Kong–Zhuhai–Macao (HZM) Bridge, which opened for traffic on October 24, 2018 with the longest SCFL combination in the world, at a total length of 29.6 km.展开更多
Chinese Education Philosophy of "Truth, Kindness, and Aesthetics Combination" manifests in the research on Chinese education from aesthetics perspective. It aims at the "narrow and limited view" of...Chinese Education Philosophy of "Truth, Kindness, and Aesthetics Combination" manifests in the research on Chinese education from aesthetics perspective. It aims at the "narrow and limited view" of "not the general aesthetics, but the artistic beauty only", and it aims at biased opinion of "the interest saying", "the fine arts saying", "the esthetic sense saying" on aesthetics. It also aims at serious distraction of "LEFT in form but RIGHT in essence" of the mainstream ideology "the thought", "the revolution", "politics" and so on. It is a complex study of Chinese education from the philosophy of the unity of Truth, Kindness, and Aesthetics of oriental aesthetics, the consensus of Truth, Kindness, and Aesthetics of Western aesthetics, and the identity of Truth, Kindness, and Aesthetics of Marx aesthetics. From aesthetics perspective, it studies Chinese education, "combing" the reversed relationships among "truth", "kindness" and "aesthetics" in Chinese, adopting the methods of "research with great ease", "cases study", and "combination of ration and perception", to achieve "truth" of in Chinese, "kindness" of and "aesthetics" of , promote the development of "Chinese intellectual education", "Chinese moral education", and "Chinese aesthetic education" harmoniously, to realize the "Truth, Kindness, and Aesthetics Combination" of Chinese education and to reach the brand-new boundary territory of "human development and integrity construction" effectively.展开更多
In this paper, the relationships between the region of the two coexisting kinds of macro-defects and the reduction in area, as well as between the region and the relative residual thickness of the billet are studied f...In this paper, the relationships between the region of the two coexisting kinds of macro-defects and the reduction in area, as well as between the region and the relative residual thickness of the billet are studied for the cup-cup axisymmetric combined extrusion, on the basis of the analytical expression obtained by the upper-bound approach. The presented model and conclusions are confirmed by the experimental results in this paper.展开更多
Background:The goal of this study was to determine the safety and efficacy of endoscopic combined intrarenal surgery(ECIRS)performed in the prone split-leg position for the treatment of complex renal stones.Materials ...Background:The goal of this study was to determine the safety and efficacy of endoscopic combined intrarenal surgery(ECIRS)performed in the prone split-leg position for the treatment of complex renal stones.Materials and methods:A mature ECIRS protocol was designed.Retrospective analysis was conducted of medical records between January 2020 and December 2021 of patients with complex renal stones at one center who underwent ECIRS by 2 skilled surgeons using retrograde flexible ureteroscopy and mini-percutaneous nephrolithotomy in the prone split-leg position.Results:A total of 44 patients were included in this study.Mean stone size was 26.1±12.7 mm,and the number of calyces involved was 4.36±2.09.Mean operative time was 71.1±21.8 minutes.Postoperative decline in hemoglobin was 15.8±9.8 g/L.Seventy-five percent of patients achieved stone-free status.The mean number of residual stones was 2.8±2.3,and the mean residual stone size was 10.30±4.76 mm.Six patients(13.6%)developed postoperative complications,including 4 with fever during the first 2 days postoperatively and 2 patients with transient postoperative pain.No patients developed severe complications.Conclusions:Endoscopic combined intrarenal surgery in the prone split-leg position can be performed safely by experienced surgeons using retrograde flexible ureteroscopy in conjunction with mini-percutaneous nephrolithotomy as a successful technique for the treatment of complex renal stones.展开更多
Abstract Objective To investigate the effects of combined blockade by platelet activating factor (PAF) receptor antagonist BN 52021 in combination with opiate receptor antagonist naloxone on neurologica...Abstract Objective To investigate the effects of combined blockade by platelet activating factor (PAF) receptor antagonist BN 52021 in combination with opiate receptor antagonist naloxone on neurological function and neurological tissue damage after cervical cord injury. Methods Spinal cord contusion at C 6 segment was made with Allen method in cats, which were randomly divided into four groups: saline control group; BN 52021 group; naloxone group; and combined treatment group with BN 52021 and naloxone. Alteration of cervical cord blood flow, blood barrier permeability of the spinal cord, cervical cord tissue pathology and neurological functional scores were studied after experimental cervical cord injury. Results The animals treated with BN 52021 or naloxone had significantly better functional scores than saline controls 6 weeks after injury (P<0.05). Moreover, the combined treatment showed significantly better neurologic recovery than either naloxone or BN 52021 treated animals (P<0.05). The other indexes in combined treatment animals were also superior to those in naloxone or BN 52021 treated animals. Conclusions Combined blockade by two kinds of autolesion mediator receptor can more effectively inhibit secondary damage production and development after cervical cord injury and improve neurologic function.展开更多
文摘In general, two kinds of structures are used to provide a way across a river, canal, sea, or other obstacle: bridge structures that pass over the obstacle, and tunnel structures that pass below the obstacle. Although the construction of both bridges and tunnels can be traced back over thousands of years, bridge–tunnel combinations that use an island as a sea-crossing fixed link (SCFL) have only been built over the past 82 years. The first such combination was probably the 6.4 km long San Francisco–Oakland Bay Bridge in the United States, which was completed in 1936. The most recently constructed SCFL combining a bridge, tunnel, and island is the Hong Kong–Zhuhai–Macao (HZM) Bridge, which opened for traffic on October 24, 2018 with the longest SCFL combination in the world, at a total length of 29.6 km.
文摘Chinese Education Philosophy of "Truth, Kindness, and Aesthetics Combination" manifests in the research on Chinese education from aesthetics perspective. It aims at the "narrow and limited view" of "not the general aesthetics, but the artistic beauty only", and it aims at biased opinion of "the interest saying", "the fine arts saying", "the esthetic sense saying" on aesthetics. It also aims at serious distraction of "LEFT in form but RIGHT in essence" of the mainstream ideology "the thought", "the revolution", "politics" and so on. It is a complex study of Chinese education from the philosophy of the unity of Truth, Kindness, and Aesthetics of oriental aesthetics, the consensus of Truth, Kindness, and Aesthetics of Western aesthetics, and the identity of Truth, Kindness, and Aesthetics of Marx aesthetics. From aesthetics perspective, it studies Chinese education, "combing" the reversed relationships among "truth", "kindness" and "aesthetics" in Chinese, adopting the methods of "research with great ease", "cases study", and "combination of ration and perception", to achieve "truth" of in Chinese, "kindness" of and "aesthetics" of , promote the development of "Chinese intellectual education", "Chinese moral education", and "Chinese aesthetic education" harmoniously, to realize the "Truth, Kindness, and Aesthetics Combination" of Chinese education and to reach the brand-new boundary territory of "human development and integrity construction" effectively.
文摘In this paper, the relationships between the region of the two coexisting kinds of macro-defects and the reduction in area, as well as between the region and the relative residual thickness of the billet are studied for the cup-cup axisymmetric combined extrusion, on the basis of the analytical expression obtained by the upper-bound approach. The presented model and conclusions are confirmed by the experimental results in this paper.
文摘Background:The goal of this study was to determine the safety and efficacy of endoscopic combined intrarenal surgery(ECIRS)performed in the prone split-leg position for the treatment of complex renal stones.Materials and methods:A mature ECIRS protocol was designed.Retrospective analysis was conducted of medical records between January 2020 and December 2021 of patients with complex renal stones at one center who underwent ECIRS by 2 skilled surgeons using retrograde flexible ureteroscopy and mini-percutaneous nephrolithotomy in the prone split-leg position.Results:A total of 44 patients were included in this study.Mean stone size was 26.1±12.7 mm,and the number of calyces involved was 4.36±2.09.Mean operative time was 71.1±21.8 minutes.Postoperative decline in hemoglobin was 15.8±9.8 g/L.Seventy-five percent of patients achieved stone-free status.The mean number of residual stones was 2.8±2.3,and the mean residual stone size was 10.30±4.76 mm.Six patients(13.6%)developed postoperative complications,including 4 with fever during the first 2 days postoperatively and 2 patients with transient postoperative pain.No patients developed severe complications.Conclusions:Endoscopic combined intrarenal surgery in the prone split-leg position can be performed safely by experienced surgeons using retrograde flexible ureteroscopy in conjunction with mini-percutaneous nephrolithotomy as a successful technique for the treatment of complex renal stones.
文摘Abstract Objective To investigate the effects of combined blockade by platelet activating factor (PAF) receptor antagonist BN 52021 in combination with opiate receptor antagonist naloxone on neurological function and neurological tissue damage after cervical cord injury. Methods Spinal cord contusion at C 6 segment was made with Allen method in cats, which were randomly divided into four groups: saline control group; BN 52021 group; naloxone group; and combined treatment group with BN 52021 and naloxone. Alteration of cervical cord blood flow, blood barrier permeability of the spinal cord, cervical cord tissue pathology and neurological functional scores were studied after experimental cervical cord injury. Results The animals treated with BN 52021 or naloxone had significantly better functional scores than saline controls 6 weeks after injury (P<0.05). Moreover, the combined treatment showed significantly better neurologic recovery than either naloxone or BN 52021 treated animals (P<0.05). The other indexes in combined treatment animals were also superior to those in naloxone or BN 52021 treated animals. Conclusions Combined blockade by two kinds of autolesion mediator receptor can more effectively inhibit secondary damage production and development after cervical cord injury and improve neurologic function.
