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Search Results: 1 - 10 of 2998 matches for " Jianping Ou "
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On Arc Connectivity of Direct-Product Digraphs
Tiedan Zhu,Jianping Ou
Journal of Applied Mathematics , 2012, DOI: 10.1155/2012/424023
Abstract: Four natural orientations of the direct product of two digraphs are introduced in this paper. Sufficient and necessary conditions for these orientations to be strongly connected are presented, as well as an explicit expression of the arc connectivity of a class of direct-product digraphs.
Double-Lumen Needle Follicular Flushing System versus Single-Lumen Aspiration Needle in IVF/ICSI Patients with Poor Ovarian Response: A Meta-Analysis  [PDF]
Weijie Xing, Jianping Ou, Liuhong Cai, Xin Tao
Advances in Sexual Medicine (ASM) , 2017, DOI: 10.4236/asm.2017.74014
Abstract: Background: The present study performed a meta-analysis to comprehensively analyze existing randomized controlled trials (RCT) involving the use of double-lumen needle in patients with poor ovarian response to explore whether double-lumen needle was good for specific patients. Methods: The PubMed, EMBASE, Cochrane Library databases and two randomized controlled trials registration centers were thoroughly searched until April 2017. The clinical outcomes of IVF/ICSI cycles were compared between two groups with double-lumen needle and single-lumen needle. Results: Four RCT studies were included in this present meta-analysis. The oocytes yield was similar in two groups (OR 0.88, 95%CI 0.66 - 1.16; I2 = 4%). The procedure time with double-lumen needle was significantly longer than that with single-lumen needle (IV = 1.98, 95%CI 0.95 - 3.00; I2 = 86%). The fertilization rate with double-lumen needle was lower than that with single-lumen needle (OR 0.66, 95%CI 0.44 - 0.97; I2 = 0%). There was no significant difference of live birth rate in two groups (OR 0.76, 95%CI 0.32 - 1.76; I2 = 41%). Conclusion: Double-lumen needle could not benefit patients with a POR in terms of the number of oocytes retrieved, oocyte recovery rate, normal fertilization rate, clinical pregnancy rate, and live birth rate, compared with single-lumen needle.
Comparison of Pregnancy Outcomes of High-Quality D5- and D6-Blastocyst Transfer in Hormone-Replacement Frozen-Thawed Cycles  [PDF]
Weijie Xing, Liuhong Cai, Li Sun, Jianping Ou
International Journal of Clinical Medicine (IJCM) , 2017, DOI: 10.4236/ijcm.2017.811053
Abstract: This study aimed to assess pregnancy outcomes after high-quality D5- and D6-blastocyst transfer in frozen cycles of in vitro fertilization and embryo transfer and to further evaluate whether there was a difference in blastocyst development potentials with different developmental speeds and in pregnancy outcomes. A retrospective analysis was conducted to analyze 247 frozen cycles in our center from September 2015 to July 2017, which were divided into two groups: a D5-FET group with 193 cycles of D5-blastocyst transfer, and a D6-FET group with 54 cycles of D6-blastocyst transfer. Hormone replacement method was utilized to prepare frozen-cycle endometria. Pregnancy outcomes were analyzed and compared between these two groups. The mean ages of the two groups were 31.45 ± 4.43 years and 31.98 ± 4.84 years, respectively, with no statistically significant differences (P > 0.05). The difference in the endometrial thickness during transfer was also not statistically significant. The implantation rate in the D5-FET group was 60.13%, significantly higher than that in the D6-FET group (31.58%, P < 0.05). The clinical pregnancy rate in the D5-FET group was 68.91%, significantly higher than that in the D6-FET group (40.74%, P < 0.05). No statistically significant differences were found in the abortion rate and ectopic pregnancy rate between the two groups. The implantation, biochemical pregnancy, and clinical pregnancy rates of the blastocyst D5 were all superior to those of the blastocyst D6. In clinics, therefore, D5-blastocyst transfer could be prioritized for embryo transfer.
Frozen Blastocyst Transfer during in Vitro Fertilization/Intracytoplasmic Sperm Injection Cycle Lowers the Rate of Ectopic Pregnancy  [PDF]
Weijie Xing, Liuhong Cai, Li Sun, Jianping Ou
Open Journal of Obstetrics and Gynecology (OJOG) , 2017, DOI: 10.4236/ojog.2017.712120
Abstract: This study aimed to determine whether frozen blastocyst transfer can lower the incidence rate of ectopic pregnancy. A total of 1577 in vitro fertilization/ intra-cytoplasmic cycles were analyzed, including 757 fresh D3-ET cycles, 429 frozen D3-ET cycles, and 391 frozen D5-ET cycles. The differences of ages, the proportion of IVF cycles, the proportion of primary infertility, and the proportion of tubal factor between three groups were not significant. The clinical pregnancy rate in Frozen D5-ET Group was 62.15%, which was significantly higher than other two groups (46.10%; 38.93%; P < 0.05). The miscarriage rates of three groups were similar. The ectopic pregnancy rate in Frozen D5-ET Group was 0.41%, which was significantly lower than that in Frozen D3-ET Group (2.99%, P < 0.05) and slightly lower than that in Fresh D3-ET Group (2.29%, P = 0.089). Results from this study show that the transfer of frozen D5 blastocysts can significantly decrease the incidence rate of ectopic pregnancy.
Integrated Optical Fiber Sensing System by Combing Large-Scale Distributed BOTDA/R and Localized FBGs
Zhi Zhou,Jianping He,Jinping Ou
International Journal of Distributed Sensor Networks , 2012, DOI: 10.1155/2012/804394
Abstract:
Integrated Optical Fiber Sensing System by Combing Large-Scale Distributed BOTDA/R and Localized FBGs
Zhi Zhou,Jianping He,Jinping Ou
International Journal of Distributed Sensor Networks , 2012, DOI: 10.1155/2012/804394
Abstract: Structural health monitoring (SHM) has been regarded as a significant tool for the safety of civil infrastructures. Local fiber Bragg grating (FBG) sensor and distributed Brillouin optical fiber sensor have been successfully applied in civil engineering fields. Unfortunately, neither single FBG nor single Brillouin sensing technique can satisfy the requirements of simultaneously positioning full-scale structural damages and accurate local damage details. So it still matters to establish balance between localized high-precision measurement and large-scale distributed measurement with lower accuracy. This paper introduces an integration system by combining distributed Brillouin and local FBG sensors on one single-mode optical fiber. The temperature self-compensation and the data processing method of the integration system have been investigated. The integrated FBG/Brillouin sensor has been further packaged by glass fiber-reinforced polymer to be used as a robust and smart structural component. Finally the proposed integrated sensing system has been applied in three case studies, including investigation of reinforced concrete beam, smart cable, and smart steel strand to verify the feasibility. The test results illustrate that the integrated system can simultaneously provide accurate strain measurement at critical points by FBGs and the rough distributed strain measurement by Brillouin sensor, which can be further applied to various applications. 1. Introduction In the last two decades, a large amount of critical infrastructures, characterized as high cost, large scale and required long service life, have been built all over the world. These critical structures are expected to survive after a long-term service and during or even the rare events such as earthquakes and fires. To secure the survivability of the critical structures in a long run, their health conditions need to be monitored and assessed in real time. Thus, structural health monitoring (SHM) technology has attracted considerable interests worldwide. SHM systems have been successfully deployed to understand the loads, environmental changes, and structural behaviors, which have also been applied to a number of case studies, for example, structural behavior monitoring of Guangzhou TV Tower, Water Cube, and Tsing Ma Bridge [1–6]. In general, damages are randomly distributed through the structure, and their locations are usually hidden. Also, the structural damages are time dependent and interrelated with various factors. Thus, a cost-effective SHM system is desired to provide damage distribution
Case Report of Ectopic Pregnancy during Controlled Ovarian Stimulation without Oocytes Harvested and Late Ovarian Hyperstimulation Syndrome  [PDF]
Hui Lin, Wen He, Jie Lv, Chanlin Han, Li Sun, Jianping Ou, Liuhong Cai
Advances in Reproductive Sciences (ARSci) , 2018, DOI: 10.4236/arsci.2018.63008
Abstract: Here we reported a rare case of misdiagnosed ectopic pregnancy (EP) due to unintended ovulation during controlled ovarian stimulation (COS) in GnRH agonist cycle, resulting in no oocytes harvested and late hyper-stimulation syndrome (OHSS). The patient was a 33-year old primary infertile woman due to male’s factors and underwent her second in vitro fertilization (IVF) cycle using GnRH agonist protocol, and no oocytes harvested on ovum picked-up (OPU) day. The start of gonadotropin usage was on day 8th of her period, and the P level increased rapidly and strangely high from day 8th after gonadotropin usage. The E2 level and follicles grew normally but finally no oocytes harvested. She was diagnosed as late ovarian hyper-stimulation syndrome (OHSS) 7 days after OPU. 20 days after OPU, no menstruation come and a positive urine test of hCG were reported. And the patient was diagnosed as EP by laparoscopy. In conclusion, rapidly increased P level, no oocyte retrieval and late onset of OHSS should be very important clues to diagnose this misdiagnosed EP.
3 Restricted Edge Connectivity and Regular Factor
3限制边连通度与正则因子

Ou Jianping,
欧见平
,张福基

数学物理学报(A辑) , 2003,
Abstract: Let G be a connected k regular vertex transitive graph of order at least 6. If G is triangle free, then either G is maximal 3 restricted edge connected, or G has a (k_1)regular factor with components isomorphic to a same vertex transitive graph of order h such that 2k_2≤h≤3k_5.The only exception is that G is a cubic graph with girth 4.
Crystal Structures of Human CaMKIα Reveal Insights into the Regulation Mechanism of CaMKI
Manwu Zha, Chen Zhong, Ying Ou, Li Han, Jianchuan Wang, Jianping Ding
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0044828
Abstract: Human calcium/calmodulin-dependent protein kinase I (CaMKI) plays pivotal roles in the nervous system. The activity of human CaMKI is regulated by a regulatory region including an autoinhibitory segment and a CaM-binding segment. We report here four structures of three CaMKIα truncates in apo form and in complexes with ATP. In an apo, autoinhibited structure, the activation segment adopts a unique helical conformation which together with the autoinhibitory segment constrains helices αC and αD in inactive conformations, sequesters Thr177 from being phosphorylated, and occludes the substrate-binding site. In an ATP-bound, inactive structure, the activation segment is largely disordered and the CaM-binding segment protrudes out ready for CaM binding. In an ATP-bound, active structure, the regulatory region is dissociated from the catalytic core and the catalytic site assumes an active conformation. Detailed structural analyses reveal the interplay of the regulatory region, the activation segment, and the nucleotide-binding site in the regulation of CaMKI.
Improved Quantum-Behaved Particle Swarm Optimization  [PDF]
Jianping Li
Open Journal of Applied Sciences (OJAppS) , 2015, DOI: 10.4236/ojapps.2015.56025
Abstract: To enhance the performance of quantum-behaved PSO, some improvements are proposed. First, an encoding method based on the Bloch sphere is presented. In this method, each particle carries three groups of Bloch coordinates of qubits, and these coordinates are actually the approximate solutions. The particles are updated by rotating qubits about an axis on the Bloch sphere, which can simultaneously adjust two parameters of qubits, and can automatically achieve the best matching of two adjustments. The optimization process is employed in the n-dimensional space [-1, 1]n, so this approach fits to many optimization problems. The experimental results show that this algorithm is superior to the original quantum-behaved PSO.
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