Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-19 Cooperative journals: 《中国科学院院刊》
Abstract： Rapid advances in molecular basis and genetic improvement of economically important traits in fish have led to flourishing development of aquatic seed industry. Based on analyzing the origin, development, and status of fish genetic breeding in China, we mainly summarize recent progresses on complete genome sequencing, identification of molecular modules controlling complex traits including sex control, disease resistance, hypoxia tolerance, and feed efficient utilization, and breeding of a new allogynogenetic gibel carp variety supported by the Strategic Priority Program “Innovative System of Designer Breeding by Molecular Modules”. Moreover, we highlight the future perspectives in modern aquatic seed industry for intensive and ecological aquaculture.
Subjects: Medicine, Pharmacy >> Preclinical Medicine submitted time 2018-01-25 Cooperative journals: 《南方医科大学学报》
Abstract： Objective To evaluate the clinicopathological characteristics, treatment and prognosis of uterine malignant mixed mullerian tumor. Methods The clinical, pathologic and follow-up data of 16 patients with uterine malignant mixed Mullerian tumor treated in our hospital between March, 2003 and June, 2015 were analyzed. Results The 16 patients had a median age of 58 years at diagnosis, and 13 of them were postmenopausal. The number of patients with FIGO stageIa, Ib, II, IIIa, IIIc2, and IV was 7, 3, 1, 3, 1, and 1, respectively. In 15 patients who received uterine segment diagnostic curettage, pathological examination all reported malignant results. Among the 15 patients having serum CA125 level test upon admission, 2 had elevated CA125 levels. The overall and disease-free survival rates of the 16 patients were 75% and 68.8%, respectively, and the 3-year survival rate of 13 patients who were followed up for at least 3 years was 72.7%. Two out of 12 patients receiving retroperitoneal lymphnodedissectionhad had postoperative recurrence, as compared with 3 out 4 who did not had the operation; tumor recurrence was found in 3 out of 13 patients receiving postoperative chemotherapy, as compared with 2 out of 3 patients who did not have chemotherapy; tumor recurrence occurred in 1 out of 10 patients receiving radiotherapy, as compared with 4 out of 6 patients without radiotherapy. The recurrence rates in 11 patients with FIGO stage I-II was 18.2%, and that among the 5 patients with FIGO stage III-IV was 60.0%. Conclusions Uterine segment diagnostic curettage has a high diagnosticvalueforuterinemalignantmixedMulleriantumor.FIGOstageistheimportantprognosticfactorforthesepatients, and earlydiagnosis, accurate surgical staging, platinum-based chemotherapy and postoperative pelvic radiotherapy are all associatedwithabetterprognosis.
Subjects: Dynamic and Electric Engineering >> Engineering Thermophysics submitted time 2017-11-07 Cooperative journals: 《工程热物理学报》
Abstract：对某一无阻流门叶栅式反推装置的流场进行了数值研究，详细分析了不同叶栅安装角对反推性能的影响。结果表明叶栅安装角对流出反推窗口气流的质量流量、气流速度以及气流的流动方向产生影响，进而对反推效果产生影响。对于不同风扇进口压比，存在不同的最佳的叶栅安装角度，能使得反推效果最好。由于风扇压比不同，气流所具有的能量不同，风扇进口压比越低，其具有能量越小，进入反推窗口偏转角越大，最佳安装角越大。
Subjects: Dynamic and Electric Engineering >> Engineering Thermophysics submitted time 2017-10-17 Cooperative journals: 《工程热物理学报》
Abstract：采用数值模拟方法,对串列式叶栅扩压器中的非定常流动进行了研究。结果表明,带串列式叶栅扩压器的离心压气机内部流动是以强非定常的三维黏性主流和缝隙流动为主要特征,串列式叶栅扩压器内部流动存在明显的非定常性,压力脉动的传播在前排叶栅通道内衰减很快。扩压器前排叶片通道内压力脉动的主频为叶轮叶片通过频率。后排叶片前缘附近压力脉动的主频变为0.5倍叶频。串列式叶栅扩压器进口的压力脉动主要受到叶轮的激励作用;串列叶栅间隙处,随主流输运而来的叶轮尾迹与缝隙流、前排叶片尾迹相互干扰与叠加,成为后排叶片前缘压力脉动新的激励。相比于近叶根、叶尖处,前排叶片前缘中间叶高处的压力脉动受到叶轮主流和分流叶片尾迹的激励作用更强烈。
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