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| 1 | Time-consistent investment-reinsurance strategies towards joint interests of the insurer and the reinsurer under CEV models显示文摘The present paper studies time-consistent solutions to an investment-reinsurance problem under a mean-variance framework.The paper is distinguished from other literature by taking into account the interests of both an insurer and a reinsurer jointly.The claim process of the insurer is governed by a Brownian motion with a drift.A proportional reinsurance treaty is considered and the premium is calculated according to the expected value principle.Both the insurer and the reinsurer are assumed to invest in a risky asset,which is distinct for each other and driven by a constant elasticity of variance model.The optimal decision is formulated on a weighted sum of the insurer’s and the reinsurer’s surplus processes.Upon a verification theorem,which is established with a formal proof for a more general problem,explicit solutions are obtained for the proposed investment-reinsurance model.Moreover,numerous mathematical analysis and numerical examples are provided to demonstrate those derived results as well as the economic implications behind. | ZHAO Hui WENG ChengGuo SHEN Yang ZENG Yan | 2017 | Science China Mathematics2017，60，2： | 9 |
| 2 | Effect of constant compressive stress induced by imitating tuina stimulation with various durations on the cell cycle,cellular secretion,apoptosis,and expression of myogenic differentiation and myogenic factor 5 of rat skeletal muscle cells in vitro显示文摘OBJECTIVE:To investigate the effect of constant compressive stress induced by imitating Tuina stimulation with various durations on the cell cycle,cellular secretion,apoptosis,and expression of myogenic regulatory factors(MRFs),myogenic factor 5(Myf5)and myogenic differentiation(MyoD)of rat skeletal muscle cells(RSkMCs)in vitro.METHODS:Third passage RSkMCs were subjected to constant compressive stresses with various durations at 2000μstrain for 15,30,60,90,and 120 min via a four-point bending system.The control group(CG)was cultured in the absence of mechanical loading.Alterations of the cell cycle and apoptosis rate were detected by flow cytometry(FCM).The concentrations of interleukin 6(IL-6)/prostaglandin E2(PGE2)and nitric oxide(NO)in supernatants were determined by enzyme-linked immunosorbent assays and the nitrate reductase method,respectively.Expression of Myf5 and MyoD was detected by immunohistochemistry.RESULTS:Compared with the CG,a significant alteration was observed in the synthesis phase fraction(SPF)(P<0.01).The SPF and proliferation index(PI)were reduced from 15 to 90 min,but reached levels similar to those at 120 min.Apoptosis was increased significantly at 30 min(P<0.05)and especially at 90 and 120 min(P<0.01).Expression of MyoD and Myf5 was increased significantly at 15,30,and 90 min(P<0.01).Compared with 15 and 30 min,MyoD and Myf5 expression at 60 and 120 min was decreased significantly(P<0.01).Compared with 60 min,M yoD expression at 90 min was increased significantly(P<0.05),whereas MyoD and Myf5 expression at 120 min was significantly lower(P<0.05).The IL-6 concentration was increased at 60 min compared with the CG and 15 min(P<0.05),whereas the concentrations of PGE2 and NO were the highest at 15 and 30 min,respectively,compared with the CG and other time points(P<0.05).CONCLUSION:The cell cycle,secretion,apoptosis,and Myf5 and MyoD expression of RSkMCs were regulated by compressive stress in a time-dependent manner.SPF and PI were inhibited at short durations(<90 min),but NO and PGE2 secretion was the highest at shorter durations(<30 min).With the prolongation of stimulation time,SPF,PI,and apoptosis were increased,but Myf5 and MyoD expression was decreased gradually at 15-30 min. | Lu Qunwen Su Chengguo Liu Huahui Luo Caigui Yan Bohua | 2020 | Journal of Traditional Chinese Medicine2020，40，4： | 1 |
| 3 | Study on the diurnal changes of net photosynthetic rate and the impact factors of Stevia rebaudiana Bertoni in autumn显示文摘 | Lu Chengguo Ma Lei Shi Yan | 2009 | Am J Plant Physiol2009，4，1： | 1 |
| 4 | Use of tung oil as a reactive toughening agent in dicyclopentadiene-terminated unsaturated polyester resins显示文摘 | Chengguo Liu Wen Lei Zhengchun Cai Jianqiang Chen Lihong Hu Yan Dai Yonghong Zhou | 2013 | Industrial Crops & Products2013，，： | 1 |
| 5 | The effects of modified atmosphere packaging on core browning and the expression patterns of PPO and PAL genes in ‘Yali’ pears during cold storage显示文摘 | Yudou Cheng Liqin Liu Guoqun Zhao Chengguo Shen Hongbo Yan Junfeng Guan Kun Yang | 2014 | LWT - Food Science and Technology2014，，： | 1 |
| 6 | Synthesis of Bio-base Plasticizer Using Waste Cooking Oil and Its Performance Testing in Soft Poly(vinyl chloride)Films显示文摘Waste cooking oil was modified to prepare bio-base plasticizers(a,b and c)with terephthalic acid,adipic acid and benzoic acid by transesterification,epoxidation and ring opening reactions,respectively.The polyvinyl chloride(PVC)films(a/PVC,b/PVC and c/PVC)were prepared using a,b and c as bio-base plasticizers.The epoxidation and ring opening reactions were mainly investigated through GC-MS analysis.The structures of bio-base plasticizers(a,b and c)were confirmed by Fourier transform infrared spectroscopy(FT-IR),^(1)H NMR and ^(13)C NMR.The mechanical properties of a/PVC were as good as those of PVC films with the dioctyl phthalate(DOP)plasticizer.Meanwhile,the elongation at break of c/PVC reached 422%.The glass transition temperature(Tg)from dynamic mechanical analysis(DMA)was reduced to 30.6℃,45.3℃,23.6℃and 40.6℃,respectively when 40 phr of a,b,c and DOP plasticizer were added.Results of thermogravimetric analysis(TGA)illustrated that the thermal degradation stabilitiy of a/PVC films was better than those of c/PVC and DOP/PVC.The volatility losses of a,b and c were lower than that of the DOP.Bio-base plasticizers a and c exhibited excellent migration resistance in different solutions(distilled water,50%ethanol(w/w)).The FT-IR of PVC films showed that the downfield shifts of the—CH—Cl groups of the PVC plasticized with a and c were greater than that of b/PVC.The bio-base plasticizers b had a better plasticizing effect at low temperature. | Guodong FENG Yan MA Meng ZHANG Puyou JIA Chengguo LIU Yonghong ZHOU | 2019 | Journal of Bioresources and Bioproducts2019，4，2： | 1 |
| 7 | 6-44 Studying of Residual Activity Induced by 300 MeV/u Carbon Ion in Copper Target显示文摘Activation of accelerator components due to beam losses is an important issue for a high-energy heavy ion accelerator.The induced components may become a main source of exposure to maintenance workers and a serious access-restriction for“hand-on”maintenance,and also have a certain radiation influence over the environment.In this work,experimental of residual activation induced by 300 MeV/u carbon ions was studied at the deep-therapy terminal of HIRFL. | Xu Junkui Su Youwu Li Wuyuan Pang Chengguo Yan Weiwei Xu Chong Mao Wang | 2016 | IMP & HIRFL Annual Report2016，，1： | 0 |
| 8 | 6-42 Radiation Safety Report of HIRFL in 2015显示文摘The total operation time of HIRFL is 7 536 h in 2015; the user beam time is about 5 451.5 (from 21 Dec.2014 to 21 Dec. 2015); 4 836 h were used for experiments; 615.5 h were used for accelerator research. There are 26 heavy ions beams were provided by HIRFL in 2015. The highest ions energy provided is 464 MeV/u, the maximum accumulated ion intensity is 1 400 A for carbon ion. | Su Youwu Xu Junkui Li Zongqiang Mao Wang Li Wuyuan Xu Chong Yan Weiwei Pang Chengguo | 2015 | IMP & HIRFL Annual Report2015，，1： | 0 |
| 9 | 6-22 Radiation Safety Report of HIRFL in 2014显示文摘The total operation time of HIRFL is 7 272 h in 2014, and the user beam time is about 4 964.5 h(from 21stDec.2013 to 21st Dec. 2014). 3 749 h for physics experiment, 332 h for life science research, 883.5 h for materialscience and single particle effect research, and 235 h for machine research. There are 24 heavy ions beams wereprovided by HIRFL in 2014. The highest ions energy provided is 487 MeV/u, and the maximum accumulated ionintensity is 1 000 A. | Su Youwu Xu Junkui Li Zongqiang Mao Wang Li Wuyuan Xu Chong Yan Weiwei Pang Chengguo | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 10 | Quantitative Seismic Risk Evaluation on Blind Faults in Offshore Areas of Tianjin,China显示文摘Based on faults surveying and research data in the Tianjin offshore areas,through studying tectonic structure,Quaternary activity,deep structure,stress and strain fields and seismicity in the Tianjin offshore areas,the activity and tectonic features of the faults are determined synthetically.Using seismo-geological data,and the historical and modern seismicity data,the frequency-magnitude relationship model normalized by 500a is established and based on the relationship between the upper limit of maximum magnitude M u and a t/b,the maximum magnitudes of the sea section of the Haihe river fault and the Haiyi fault are calculated.Then Poisson probability model is adopted and the quantitative parameters,such as the maximum magnitude,occurrence probability,recurrence cycle of the faults in the south Tianjin offshore areas in the coming 50~200a,are calculated. | Liu Hongyan Chen Yukun Yan Chengguo Yang Fei | 2013 | Earthquake Research in China2013，27，4： | 0 |
| 11 | Research on the Relationship between Shallow Shear Wave Velocity and Basement Structure in the Tianjin Coastal Area显示文摘Shear wave velocity is one of the important dynamic characteristics of soil layers and applied widely in aseismic engineering. In this paper, 500 drill logging data are used to make a linear interpolation based on 0.01°×0.01°×1m grid. A shallow 3-D shear wave velocity structure of Tianjin coastal area is obtained. According to the data and geological background, we selected two typical velocity profiles to try to introduce and explain its relationship to basement structure. The results show that the shear wave velocity structure clearly presents the characteristic of stratification and lateral inhomogeneity. Furthermore, the difference of the shear wave structure between tectonic elements is clear and the velocity structure between the two sides of the local or border fault in the Quaternary is disturbed or affected significantly. It intuitively shows that the basement structure and fault activity of this region had good control of sedimentation development and strata formation in the Quaternary period which would have an important effect on engineering seismic and geological condition evaluation. | Gao Wuping Chen Yukun Ren Feng Yan Chengguo Wang Zhisheng Yang Fei | 2012 | Earthquake Research in China2012，26，4： | 0 |
| 12 | Study on Holocene Paleoearthquakes in Xizhang Trench on the Jiaocheng Fault Zone,Shanxi Province显示文摘Xizhang trench is located 10 km northwest of Taiyuan city,Shanxi Province,in front of a NNW-trending scarp of 4.6m height on the northern segment of the Jiaocheng fault zone.The dimensions of the trench are 108m in length,8m in width,and 10m in depth.There are 18 horizons revealed in the trench.The upper strata are sandy loam;the upper strata of the downthrown block of the fault are gravels,the lower ones are an interbed of brown loam and sandy loam.The strata on the upthrown block of the fault are sandy loam containing gravel.The trench shows 3 fault planes,and the upper offset point on the fault plane is 1.5m below the ground surface,the newest dislocated stratum is(3.74±0.06)ka BP.The trench reveals a lot of deformation traces,such as fault planes,dislocated strata,colluvial wedges and formation tilting.The relationship between strata and faults in the trench shows that 3 paleoearthquake events have occurred at the Jiaocheng fault zone since the Early Holocene,they are about(3.74±0.06)~(3.06±0.26)ka BP,(8.35±0.09)ka~(3.74±0.06)ka BP,and(10.66±0.85)~(8.35±0.09)ka BP.The average interval among the events is 2.6~3.6ka.The minimum coseismic vertical displacements of the 3 events are 3.0m,2.5m and 3.2m,respectively.The significance of Xizhang trench is that the Jiaocheng fault used to be active thousands of years ago,though there is no M≥7.0 earthquake recorded in historical documents.Evidence of new Jiaocheng fault zone activity during the Holocene is important for the earthquake safety assessment of Taiyuan city in the future. | Xie Xinsheng Zhao Jinquan Jiang Wali An Weiping Li Zihong Zhang Dawei Cheng Xinyuan Gao Shuyi Wang Chunhe Sun Changbin Yan Chengguo | 2008 | Earthquake Research in China2008，22，4： | 0 |
| 13 | A 36 Mb terminal deletion of chromosome 2BL is responsible for a wheat semi-dwarf mutation显示文摘Reduced plant height is one of the most important traits related to lodging resistance and crop yield. The use of reduced height genes has been one of the main features in breeding modern high-yielding wheat varieties with less lodging. A spontaneous dwarf mutant DD399 was identified in a high yielding, gibberellic acid(GA)-insensitive, lodging-resistant variety Nongda 399(ND399). Significant differences in upper internode lengths between mutant DD399 and wild type ND399 were caused by reduced cell elongation. The plant height of ND399 × DD399 F_(1) hybrids was intermediate between the parents, indicating incomplete dominance or a dose–response effect of a reduced height gene. Plant height showed continuous distribution in the F_(2) population, and segregation distortion was observed among the 2292 F_(2:3) progenies. The reduced height mutation was characterized by Illumina 90 K iSelect SNP genotyping and bulked segregant RNA-Seq(BSR-Seq) analysis of the segregating population. A concentrated cluster of polymorphic SNPs associated with the reduced height phenotype was detected in the distal region of chromosome arm 2 BL. Co-segregation of reduced height phenotype with the clustered markers revealed a 36 Mb terminal deletion of chromosome 2 BL in mutant DD399. | Qiuhong Wu Yongxing Chen Jingzhong Xie Lingli Dong Zhenzhong Wang Ping Lu Rongge Wang Chengguo Yuan Yan Zhang Zhiyong Liu | 2021 | The Crop Journal2021，9，4： | 0 |
| 14 | 6 - 32 Radiation Safety Reportof HIRFL in 2012显示文摘 | Su Youwu Li Zongqiang LiWuyuan Xu Junkui Mao Wang Xu Chong Yan Weiwei Pang Chengguo | 2012 | IMP & HIRFL Annual Report2012，，1： | 0 |
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