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| 1 | Carbon emission trading system of China: a linked market vs. separated markets显示文摘中国政府打算升级它在 2015 交换飞行员到一个全国性的计划的当前的省的碳排放。这研究调查二种情形:分开的省的市场和一个连接内部省的市场。分开并且连接的市场的碳消退效果基于一个可计算出来的一般平衡模型用湖北和广东的二个飞行员省被比较称为的 Sino-TERMCo2。模拟结果证明连接市场能与分开的市场相比为国家以及为湖北广东团体改进社会福利和还原剂碳排放紧张。然而,联合系统也更不均匀的散布福利并且因此增加社会不公正。在政策地面上,当前的结果建议与足够的福利转移政策补充的一个构造得好的、全国性的碳市场能被采用代替当前的自顶向下的消退目标崩溃实践。 | Yu LIU Shenghao FENG Songfeng Yaxiong ZHANG Xiang ZHOU Yanbin CHEN Zhanming CHEN | 2013 | Frontiers of Earth Science2013,7,4: | 5 |
| 2 | Unraveling the core functional bacteria and their succession throughout three fermentation stages of broad bean paste with chili显示文摘The entire fermentation process of traditional Chinese broad bean paste with chili comprises three individual stages:Tianbanzi,chili pei,and paste fermentation(Tianbanzi-chili pei mixture).Three stages share average 77.53%of all bacteria(89 genera),indicating that the similar environment leads to the similar bacterial communities.One,one,and three genera are exclusive to Tianbanzi,chili pei,and paste stages,respectively,due to the special physical and chemical properties for each stage.Total acidity,pH,and NaCl are important endogenous factors that promote the succession of bacterial communities.According to the dynamics of organic acids,reducing sugars,amino acids,and volatile compounds,60-,210-,and 180-day are considered the best fermentation periods for Tianbanzi,chili pei,and paste,respectively,to balance time cost and product quality.Three(Tetragenococcus,Lactobacillus,and Pseudomonas),four(Tetragenococcus,Lactobacillus,Bacillus,and Pseudomonas),and five(Tetragenococcus,Lactobacillus,Bacillus,Pseudomonas,and Pediococcus)genera are considered the core functional bacteria of Tianbanzi,chili pei,and paste fermentation,respectively. | Songfeng Yu Jia Song Tao Hu Jun Wang Xiaojing Liu Yu Zheng Lei Shi Shoupeng Wan Min Wang | 2022 | Food Science and Human Wellness2022,11,4: | 2 |
| 3 | Heparin inhibits burn-induced spleen cell apoptosis by suppressing interleukin-1 expression显示文摘 | Zhao Songfeng Zhang Xiao Zhang Xiaojian Shi Xiuqin Yu Zujiang Kan Quancheng | 2014 | Chinese Medical Journal2014,,13: | 1 |
| 4 | Neoadjuvant chemotherapy with pingyangmycin can inhibit the amplification and metastasis of laryngeal squamous cell carcinoma显示文摘Objective:To evaluate the short-term effects of neoadjuvant chemotherapy with pingyangmycin(PYM)in the treat-ment of laryngeal squamous cell carcinoma.Methods:24 cases of laryngeal squamous cell carcinoma were treated with PYM before the operation,and the surgeries were undergone within one week after neoadjuvant chemotherapy.PCNA,p53,Bcl-2 and CD44v6 were detected in the specimens of tumor,retreated tumor and normal tissue using immunohistochemical methods.Results:Apoptosis could be detected more often in specimens with tumor and retreated tumor after chemotherapy than that before.The expression of PCNA,p53,Bcl-2 and CD44v6 in tumor tissue after neoadjuvant chemotherapy with PYM was weaker than that before the chemotherapy.There was significant difference in the positive ratio of PCNA,p53,Bcl-2 and CD44v6 be-tween retreated tumor and tumor.Conclusion:After neoadjuvant chemotherapy with PYM,a large number of tumor cells died.The amplification and metastasis of tumor were suppressed by neoadjuvant chemotherapy with PYM. | Xiaolong Li Ming Gao Haifeng Yu Benyi Xu Zhengjin Ge Yang Yu Songfeng Wei Shuling Li | 2006 | The Chinese-German Journal of Clinical Oncology2006,5,6: | 1 |
| 5 | Clinical relevance of salivary pepsin detection in diagnosing gastroesophageal reflux disease subtypes显示文摘Background:Gastroesophageal reflux disease(GERD)is heterogeneous with a varied symptom spectrum and reflux profiles.Its definite diagnosis often requires invasive tools including endoscopy or reflux monitoring.The aim of this study was to investigate the clinical relevance of salivary pepsin detection as a non-invasive screening tool to diagnose GERD of different subtypes.Methods:A total of 77 patients with suspected GERD symptoms and 12 asymptomatic controls were analysed.All participants performed symptom evaluation,upper endoscopy,esophageal manometry,and 24-hour multichannel intraluminal impedance-dual pH probe monitoring.Saliva was self-collected across three different time points:at early fasting,postprandially,and at symptom occurrence.Salivary pepsin levels were measured via Peptest.The optimal threshold of salivary pepsin for diagnosing distal or proximal reflux was determined according to a receiver-operating characteristic curve.Results:The average salivary pepsin concentration of suspected GERD patients was significantly higher than that of controls(100.63[68.46,141.38]vs 67.90[31.60,115.06]ng/mL,P=0.044),although no difference was found among patients with different symptom spectrums.The distal reflux group had a higher average pepsin concentration than non-reflux patients(170.54[106.31,262.76]vs 91.13[63.35,127.63]ng/mL,P=0.043),while no difference was observed between the distal reflux group and the proximal reflux group.The optimal cut-off value of salivary pepsin concentration for diagnosing pathological distal reflux was 157.10 ng/mL,which was higher than that for diagnosing pathological proximal reflux(122.65 ng/mL).The salivary pepsin concentration was significantly correlated with distal and proximal reflux parameters.Conclusions:Salivary pepsin measurement can help in identifying true GERD with pathological distal reflux or proximal reflux,regardless of different symptom spectrums.A higher threshold should be applied for diagnosing distal reflux than for proximal reflux. | Mengyu Zhang Tingting Wu Niandi Tan Songfeng Chen Qianjun Zhuang Yu Luo Yinglian Xiao | 2023 | Gastroenterology Report2023,11,1: | 0 |
| 6 | Experimental Research on Supercritical Carbon Dioxide Fracturing of Sedimentary Rock:A Critical Review显示文摘Supercritical carbon dioxide(ScCO_(2))fracturing has great advantages and prospects in both shale gas exploitation and CO_(2)storage.This paper reviews current laboratory experimental methods and results for sedimentary rocks fractured by ScCO_(2).The breakdown pressure,fracture parameters,mineral composition,bedding plane angle and permeability are discussed.We also compare the differences between sedimentary rock and granite fractured by ScCO_(2),ultimately noting problems and suggesting solutions and strategies for the future.The analysis found that the breakdown pressure of ScCO_(2)was reduced 6.52%–52.31%compared with that of using water.ScCO_(2)tends to produce a complex fracture morphology with significantly higher permeability.When compared with water,the fracture aperture of ScCO_(2)was decreased by 4.10%–72.33%,the tortuosity of ScCO_(2)was increased by 5.41%–70.98%and the fractal dimension of ScCO_(2)was increased by 4.55%–8.41%.The breakdown pressure of sandstone is more sensitive to the nature of the fracturing fluid,but fracture aperture is less sensitive to fracturing fluid than for shale and coal.Compared with granite,the tortuosity of sedimentary rock is more sensitive to the fracturing fluid and the fracture fractal dimension is less sensitive to the fracturing fluid.Existing research shows that ScCO_(2)has the advantages of low breakdown pressure,good fracture creation and environmental protection.It is recommended that research be conducted in terms of sample terms,experimental conditions,effectiveness evaluation and theoretical derivation in order to promote the application of ScCO_(2)reformed reservoirs in the future. | ZHENG Bowen QI Shengwen LU Wei GUO Songfeng WANG Zan YU Xin ZHANG Yan | 2023 | Acta Geologica Sinica(English Edition)2023,97,3: | 0 |
| 7 | 自体骨复合旋转铰链膝关节治疗骨巨细胞瘤(英文)显示文摘Objective: The aim of the research was to study the clinical feasibility of autograft-prosthesis composite for aggressive giant cell tumor of bone around knee. Methods: Seven patients (5 males and 2 females, the mean age of 30.5 years old) with giant cell tumor of bone around knee underwent tumor resection and reconstructed with autograft-prosthesis composites since January 2006. Five lesions located at the distal femur and 2 at the proximal tibia. There were 3 patients with primary tumor and 4 with recurrent. Three patients with pathological fracture and all patients were of Campanacci III. Results: All patients were done follow-up from 12 to 36 months. No recurrence, metastasis, and prosthesis loosening were found. The mean healing time between autograft and host bone was 5 months. The mean motion range of affected knee were 90° (70°–110°). Conclusion: Our data documented the clinical feasibility of autograft-prosthesis composite for giant cell tumor of bone around knee which should be performed tumor resection and reconstructed with prosthesis. The long-term outcomes remain to be further proven. | Xiuchun Yu Ming Xu Zhihou Fu Songfeng Xu | 2009 | The Chinese-German Journal of Clinical Oncology2009,8,11: | 0 |
| 8 | Damage evolution of rock-encased-backfill structure under stepwise cyclic triaxial loading显示文摘Rock-encased-backfill(RB)structures are common in underground mining,for example in the cut-andfill and stoping methods.To understand the effects of cyclic excavation and blasting activities on the damage of these RB structures,a series of triaxial stepwise-increasing-amplitude cyclic loading experiments was conducted with cylindrical RB specimens(rock on outside,backfill on inside)with different volume fractions of rock(VF=0.48,0.61,0.73,and 0.84),confining pressures(0,6,9,and 12 MPa),and cyclic loading rates(200,300,400,and 500 N/s).The damage evolution and meso-crack formation during the cyclic tests were analyzed with results from stress-strain hysteresis loops,acoustic emission events,and post-failure X-ray 3D fracture morphology.The results showed significant differences between cyclic and monotonic loadings of RB specimens,particularly with regard to the generation of shear microcracks,the development of stress memory and strain hardening,and the contact forces and associated friction that develops along the rock-backfill interface.One important finding is that as a function of the number of cycles,the elastic strain increases linearly and the dissipated energy increases exponentially.Also,compared with monotonic loading,the cyclic strain hardening characteristics are more sensitive to rising confining pressures during the initial compaction stage.Another finding is that compared with monotonic loading,more shear microcracks are generated during every reloading stage,but these microcracks tend to be dispersed and lessen the likelihood of large shear fracture formation.The transition from elastic to plastic behavior varies depending on the parameters of each test(confinement,volume fraction,and cyclic rate),and an interesting finding was that the transformation to plastic behavior is significantly lower under the conditions of 0.73 rock volume fraction,400 N/s cyclic loading rate,and 9 MPa confinement.All the findings have important practical implications on the ability of backfill to support underground excavations. | Xin Yu Yuye Tan Weidong Song John Kemeny Shengwen Qi Bowen Zheng Songfeng Guo | 2024 | Journal of Rock Mechanics and Geotechnical Engineering2024,16,2: | 0 |