This paper presents an equalization algorithm for continuous phase modulation （CPM） over frequency-selective channels. A specific training sequence is first embedded in each data packet. By recursive least-squares ...This paper presents an equalization algorithm for continuous phase modulation （CPM） over frequency-selective channels. A specific training sequence is first embedded in each data packet. By recursive least-squares （RLS） estimation, the channel information parameters can be acquired, and a fractionally Simulation results show that the proposed algorithm can acquire the spaced equalizer performs joint decoding and equalization. channel information parameters rapidly and accurately, and that the fractionally spaced equalizer can eliminate the intersymbol interference （ISI） effectively, and is not sensitive to timing inaccuracy, so this algorithm can be exploited for demodulation system in burst mode.展开更多
Assembly of Cd（Ⅱ） nitrate with a new dipyridyltriazole building block 3-（2-pyridyl）-5-（3＇-pyridyl）-1H-1,2,4-triazole（2,3＇-Hbpt） and benzoic acid（Hba） yields a new coordination compound [Cd（2,3A-bpt）（b...Assembly of Cd（Ⅱ） nitrate with a new dipyridyltriazole building block 3-（2-pyridyl）-5-（3＇-pyridyl）-1H-1,2,4-triazole（2,3＇-Hbpt） and benzoic acid（Hba） yields a new coordination compound [Cd（2,3A-bpt）（ba）（H2O）] which was characterized by single-crystal X-ray diffraction, elemental analysis, IR spectrum, TGA and XRPD analysis. Single-crystal X-ray diffraction analysis indicates that the complex belongs to triclinic system, space group P1 with a = 6.8972（6）, b = 8.8182（7）, c = 16.0484（1） A, α = 75.6330（1）, β = 85.294（2）, γ = 69.3450（1）°, V = 884.76（13） A3, Z = 2, Dc = 1.778 g/cm^3, μ = 1.276 mm-1, Mr = 473.76, F（000） = 472, the final R = 0.0380 and wR = 0.1054 with I 2σ（I）. The Cd（Ⅱ） ion is coordinated by three N-terminal atoms from two 2,3A-Hbpt ligands as well as three O-terminal atoms from ba- and lattice water forming a distorted octahedral coordinated geometry. With the lattice water as hydrogen bond donor, the structure of the title complex is linked into a 2D layer-hole structure from the 0D motif. Theoretical calculation based on density functional theory（DFT） for the ligand is also employed to explicate the stability of different conformations. Moreover, the complex exhibits strong solid state fluorescent emission at room temperature which indicates that the title complex could be a good candidate for potential photoactive materials.展开更多
The aim of the present investigation is to determine initial G2-chromosome aberrations and to validate whether the G2-chromosome aberrations can predict the cellular clonogenic survival in human tumor cell lines. Cell...The aim of the present investigation is to determine initial G2-chromosome aberrations and to validate whether the G2-chromosome aberrations can predict the cellular clonogenic survival in human tumor cell lines. Cell lines of human ovary carcinoma cells (HO8910) and human hepatoma cells (HepG2) were irradiated with a range of doses and assessed both for initial G2-chromosome aberrations and for cell survival after γ -irradiation. The initial G2-chromosome aberrations were measured by counting the number of G2-chromatid breaks after irradiation, detected by the premature chromosome condensation technique, and the G2-assay method. Cell survival was documented by a colony formation assay. A linear-quadratic survival curve was observed in both cell lines. The dose–response results show that the numbers of G2-chromatid breaks increase with the increase in dose in the two cell lines. At higher doses (higher than 4 Gy) of irradiation, the number of G2-chromatid breaks for the G2-assay method cannot be determined because too few cells reach mitosis, and hence their detection is difficult. A good correlation is found between the clonogenic survival and the radiation-induced initial G2-chromatid breaks per cell (r = 0.9616). The present results suggest that the premature chromosome condensation technique may be useful for determining chromatid breaks in G2 cells, and the number of initial G2-chromatid breaks holds promise for predicting the radiosensitivity of tumor cells.展开更多
Background Candidal balanoposthJtis （CB） is a common male genital infection. Autoimmune mechanisms may play an important role in the pathOgenesis of CB. Interleukin-2 （IL-2） is an important molecule in cell-mediat...Background Candidal balanoposthJtis （CB） is a common male genital infection. Autoimmune mechanisms may play an important role in the pathOgenesis of CB. Interleukin-2 （IL-2） is an important molecule in cell-mediated immunity. Methods One hundred and one patients were diagnosed with CB using mycology culture in the dermatology and urology clinics in our hospital. Ninety-four healthy males were randomly selected as controls. We studied serum levels of IL-2 of patients with CB using ELISA and analyzed the correlations between serum IL-2 and clinical data. Results Serum IL-2 concentrations in CB patients were significantly lower than that in the control group （（7.80±4.78） vs. （15.44±7.90） rig/L; t=2.27, P 〈0.05）. The incidence of CB in the low-level group was significantly higher than that in the high-level group （70% （71/101） vs. 36% （30/84）, P 〈0.05）. Low levels of serum IL-2, comorbidity with other sexually transmitted diseases （STDs）, and sexual partners with vulvovaginal candidiasis （VVC） increased the risk of CB. Conclusion The pathogenesis of CB is a complex procedure that includes internal autoimmune factors.展开更多
文摘This paper presents an equalization algorithm for continuous phase modulation （CPM） over frequency-selective channels. A specific training sequence is first embedded in each data packet. By recursive least-squares （RLS） estimation, the channel information parameters can be acquired, and a fractionally Simulation results show that the proposed algorithm can acquire the spaced equalizer performs joint decoding and equalization. channel information parameters rapidly and accurately, and that the fractionally spaced equalizer can eliminate the intersymbol interference （ISI） effectively, and is not sensitive to timing inaccuracy, so this algorithm can be exploited for demodulation system in burst mode.
基金Supported by the National Natural Science Foundation of China(No.21263019)the Natural Science Foundation of Ningxia(No.NZ13029)
文摘Assembly of Cd（Ⅱ） nitrate with a new dipyridyltriazole building block 3-（2-pyridyl）-5-（3＇-pyridyl）-1H-1,2,4-triazole（2,3＇-Hbpt） and benzoic acid（Hba） yields a new coordination compound [Cd（2,3A-bpt）（ba）（H2O）] which was characterized by single-crystal X-ray diffraction, elemental analysis, IR spectrum, TGA and XRPD analysis. Single-crystal X-ray diffraction analysis indicates that the complex belongs to triclinic system, space group P1 with a = 6.8972（6）, b = 8.8182（7）, c = 16.0484（1） A, α = 75.6330（1）, β = 85.294（2）, γ = 69.3450（1）°, V = 884.76（13） A3, Z = 2, Dc = 1.778 g/cm^3, μ = 1.276 mm-1, Mr = 473.76, F（000） = 472, the final R = 0.0380 and wR = 0.1054 with I 2σ（I）. The Cd（Ⅱ） ion is coordinated by three N-terminal atoms from two 2,3A-Hbpt ligands as well as three O-terminal atoms from ba- and lattice water forming a distorted octahedral coordinated geometry. With the lattice water as hydrogen bond donor, the structure of the title complex is linked into a 2D layer-hole structure from the 0D motif. Theoretical calculation based on density functional theory（DFT） for the ligand is also employed to explicate the stability of different conformations. Moreover, the complex exhibits strong solid state fluorescent emission at room temperature which indicates that the title complex could be a good candidate for potential photoactive materials.
基金Supported by the Key Project (10335050) of National Natural Science Foundation of China and the Dedicated Project (2003CCB00200) of Science and Technology Ministry of China.
文摘The aim of the present investigation is to determine initial G2-chromosome aberrations and to validate whether the G2-chromosome aberrations can predict the cellular clonogenic survival in human tumor cell lines. Cell lines of human ovary carcinoma cells (HO8910) and human hepatoma cells (HepG2) were irradiated with a range of doses and assessed both for initial G2-chromosome aberrations and for cell survival after γ -irradiation. The initial G2-chromosome aberrations were measured by counting the number of G2-chromatid breaks after irradiation, detected by the premature chromosome condensation technique, and the G2-assay method. Cell survival was documented by a colony formation assay. A linear-quadratic survival curve was observed in both cell lines. The dose–response results show that the numbers of G2-chromatid breaks increase with the increase in dose in the two cell lines. At higher doses (higher than 4 Gy) of irradiation, the number of G2-chromatid breaks for the G2-assay method cannot be determined because too few cells reach mitosis, and hence their detection is difficult. A good correlation is found between the clonogenic survival and the radiation-induced initial G2-chromatid breaks per cell (r = 0.9616). The present results suggest that the premature chromosome condensation technique may be useful for determining chromatid breaks in G2 cells, and the number of initial G2-chromatid breaks holds promise for predicting the radiosensitivity of tumor cells.
文摘Background Candidal balanoposthJtis （CB） is a common male genital infection. Autoimmune mechanisms may play an important role in the pathOgenesis of CB. Interleukin-2 （IL-2） is an important molecule in cell-mediated immunity. Methods One hundred and one patients were diagnosed with CB using mycology culture in the dermatology and urology clinics in our hospital. Ninety-four healthy males were randomly selected as controls. We studied serum levels of IL-2 of patients with CB using ELISA and analyzed the correlations between serum IL-2 and clinical data. Results Serum IL-2 concentrations in CB patients were significantly lower than that in the control group （（7.80±4.78） vs. （15.44±7.90） rig/L; t=2.27, P 〈0.05）. The incidence of CB in the low-level group was significantly higher than that in the high-level group （70% （71/101） vs. 36% （30/84）, P 〈0.05）. Low levels of serum IL-2, comorbidity with other sexually transmitted diseases （STDs）, and sexual partners with vulvovaginal candidiasis （VVC） increased the risk of CB. Conclusion The pathogenesis of CB is a complex procedure that includes internal autoimmune factors.
