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| 1 | Effect of Calcium Intake on Calcium Absorption and Utilization in Rats显示文摘To study the relationship between Ca^2+ intake, Ca^2+ absorption and Ca^2+ retention.Methods; Thirty-six weaning rats were firstly fed with Ca-poor diet for a 3-week Ca^2+ depletion period, and then randmnly divided into 3 groups to receive diet with low,adequate and high Ca^2+ contents. The experiment lasted 12 weeks,with a 3-day metabolism experiment conducted in the 5th week. Resu/ts: Supplement with adequate amount of Ca^2+ increased bone Ca^2+ , bone mineral density(BMD), bone mineral content(BMC) and the weight,ht of femur(P < 0.05).Higher doses of Ca^2+ failed to further improve the efficiency.Analysis showed that Ca^2+ intake was positively correlated to bone Ca^2+ ,BND and BMC,and negatively correlated to the rates of Ca2~ absorption and retention. Dase-effect study revealed that the Ca^2+. absorption rate(Y)was a hyperbola function of Ca^2+ intake(X),i.e.Y = e^6.8068 X^-0.8821 + 20(F=47.3154,P < 0.0001).It was fonnd from the results that bone Ca2~ content( determined by atom absorptima spectzoldmtmneter)had a linear correlation to BMC( determined with tmi-photon bone minerdl densitmneter). Conclusion: The rate of Ca^2+ absorption is a hyperbola function of Ca^2+ intake. The incremnent of Ca^2+ absorption will be minimal when Ca^2+ intake exceeds 3d 250 mg in rats.BMC, better than BMD,may substitute for the ideal bone Ca^2+ content as the index to assess the efficacy of Ca^2+ supplement. | WANGCan-nan LIUPei1 LIUDe-cheng ZHUANGMing HEZhen CONGNing | 2004 | Journal of Nanjing Medical University2004，18，3： | 3 |
| 2 | Evolution of the Mongol-Okhotsk ocean as constrained by new palaeomagnetic data from the Mongol-Okhotsk suture zone, Siberia 显示文摘 | Kravchinsky V A Congne J P Harbert W P | 2002 | Geophysical Journal International2002，148，： | 1 |
| 3 | The coagulation factor V Leiden, MTHFRC677T variant and eNOS 4ab polymorphism in young Chinese population with ischemic stroke显示文摘 | Congning Shi Xixiong Kang Yajie Wang Yali Zhou | 2008 | Clinica Chimica Acta2008，，1： | 1 |
| 4 | A six- generation Chinese family in haplogroup B4C1C exhibits high pen- etrance of 1555A > G-induced hearing Loss显示文摘 | BaiY WangZ DaiW LiQ Chen G CongN | 2010 | BMC Med Genet2010，11，： | 1 |
| 5 | Downregulated microR- NA-200a promotes EMT and tumor growth through the wnt/ 13-catenin pathway by targeting the E-cadherin repressors ZEB1/ZEB2 in gastric adenocarcinoma 显示文摘 | CongN DuP ZhangA etal | 2013 | Oncol Rep2013，29，4： | 1 |
| 6 | Development of Features for Early Detection of Defects and Assessment of Bridge Decks显示文摘Damage detection is an important area with growing interest in mechanical and structural engineering.One of the critical issues in damage detection is how to determine indices sensitive to the structural damage and insensitive to the surrounding environmental variations.Current damage identification indices commonly focus on structural dynamic characteristics such as natural frequencies,mode shapes,and frequency responses.This study aimed at developing a technique based on energy Curvature Difference,power spectrum density,correlation-based index,load distribution factor,and neutral axis shift to assess the bridge deck condition.In addition to tracking energy and frequency over time using wavelet packet transform,in order to further demonstrate the feasibility and validity of the proposed technique for bridge condition assessment,experimental strain data measured from two stages of a bridge in the different intervals were used.The comparative analysis results of the bridge in first and second stage show changes in the proposed feature values.It is concluded,these changes in the values of the proposed features can be used to assess the bridge deck performance. | Ahmed Silik Xiaodong Wang Chenyue Mei Xiaolei Jin Xudong Zhou Wei Zhou Congning Chen Weixing Hong Jiawei Li Mingjie Mao Yuhan Liu Mohammad Noori Wael A.Altabey | 2023 | Structural Durability & Health Monitoring2023，17，4： | 0 |
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