Proceedings of the 11th IEEE Signal Processing Workshop on Statistical Signal Processing (Cat. No.01TH8563), 2001
Subband arrays have been proposed as a useful means to realize joint spatio-temporal domain equal... more Subband arrays have been proposed as a useful means to realize joint spatio-temporal domain equalization in digital mobile communications. They are used to mitigate channel impairment problems caused by inter-symbol interference (ISI) and co-channel interference (CCI). We propose normalized subband array and locally orthogonalized subband array techniques for channel equalization. The least square mean (LMS) algorithm is used for adaptation. The convergence performance of the proposed techniques is analyzed and compared with that of conventional space-time adaptive processing (STAP) techniques. It is shown that subband decompositions provide great flexibility in implementing spatio-temporal equalization. Both analytical and numerical simulation results demonstrate that the proposed subband array techniques substantially improve the convergence performance without significant additional computations
Proceedings of the Tenth IEEE Workshop on Statistical Signal and Array Processing (Cat. No.00TH8496), 2000
In this paper, we propose transform domain array processing schemes for DS-CDMA communications. S... more In this paper, we propose transform domain array processing schemes for DS-CDMA communications. Space-time adaptive processing (STAP) is a useful means to combat the multiuser interference (MUI) in CDMA systems. The computation burden and slow convergence are two major problems in implementing the STAP. This paper proposes optimum and sub-optimum transform domain arrays with different feedback schemes for CDMA communications.
With increasing attention put on the methodology of reporting guidelines, Moher et al. conducted ... more With increasing attention put on the methodology of reporting guidelines, Moher et al. conducted a review of reporting guidelines up to December 2009. Information gaps appeared on many aspects. Therefore, in 2010, the Guidance for Developers of Health Research Reporting Guidelines was developed. With more than four years passed and a considerable investment was put into reporting guideline development, a large number of new, updated, and expanded reporting guidelines have become available since January 2010. We aimed to systematically review the reporting guidelines published since January 2010, and investigate the application of the Guidance. We systematically searched databases including the Cochrane Methodology Register, MEDLINE, and EMBASE, and retrieved EQUATOR and the website (if available) to find reporting guidelines as well as their accompanying documents. We screened the titles and abstracts resulting from searches and extracted data. We focused on the methodology and repo...
2001 IEEE Third Workshop on Signal Processing Advances in Wireless Communications (SPAWC'01). Workshop Proceedings (Cat. No.01EX471), 2001
Electronically steerable passive array radiator (ESPAR) antennas are capable of spatially forming... more Electronically steerable passive array radiator (ESPAR) antennas are capable of spatially forming a beam toward the desired signal with the lowest cost, and are suitable to be employed in ad hoc wireless network systems. We propose a cascaded scheme for ESPAR antenna-based signal processing, where the beam toward the desired user terminal is formed in advance, and the equalizer for direct-sequence code division multiple access (DS-CDMA) signal waveforms is followed. According to the scheme, cochannel user-terminal signals and intersymbol interference signals are respectively suppressed by spatial filtering of the desired beam and the waveform-based adaptive equalization. The steady state and convergence performance of the proposed scheme is illustrated numerically by simulations
The Chinese-German Journal of Clinical Oncology, 2010
... Correspondence to: Xiaohu Wang. ... Lancet, 2005, 366: 20872106. Clark RM, Whelan T, Levine ... more ... Correspondence to: Xiaohu Wang. ... Lancet, 2005, 366: 20872106. Clark RM, Whelan T, Levine M, et al. Randomized clinical trial of breast irradiation following lumpectomy and axillary dissection for node-negative breast cancer: an update. Ontario Clinical Oncology Group. ...
The Chinese-German Journal of Clinical Oncology, 2011
Objective We carried out a meta-analysis to assess the effectiveness and safety of radiotherapy ... more Objective We carried out a meta-analysis to assess the effectiveness and safety of radiotherapy combined with surgery for gastric cancer. Methods Randomized Clinical Trials (RCTs) in which radiotherapy (preoperative, intraoperative and postoperative), was compared with surgery alone in resectable gastric cancer were identified by searching Cochrane Library (Issue 2, 2009), PubMed (Jan 1966–Jun 2009), EMBASE (Jan 1974–Jun 2009), Chinese Biomedical Literature Database
The objective of our study is to investigate the effect of triptolide on expression of thrombospo... more The objective of our study is to investigate the effect of triptolide on expression of thrombospondin-1 and transforming growth factor β1 in renal tubular cells. Human renal tubular epithelial cells were stimulated by different concentrations of triptolide (0.1, 1, and 10 μg/L) in the presence of angiotensin-II (10(-7 )mol/L). Real Time PCR was used to detect the mRNA expression of thrombospondin-1 and transforming growth factor β1. Western blot analysis was used to detect the protein expression. ELISA was used to detect the level of total and active transforming growth factor β1. The mRNA expression of thrombospondin-1 (3.66 ± 0.48 vs. 1.33 ± 0.26, p < 0.05) and transforming growth factor β1 (3.58 ± 0.59 vs. 1.26 ± 0.28, p < 0.05) were up-regulated obviously when stimulated by angiotensin-II. And the protein expression of thrombospondin-1 (0.5126 ± 0.0936 vs. 0.1025 ± 0.0761, p < 0.01) and transforming growth factor β1 (0.5948 ± 0.0736 vs. 0.1318 ± 0.0614, p < 0.01) wer...
Comprehensive monitoring of the quality of systematic reviews (SRs) and meta-analyses (MAs) of en... more Comprehensive monitoring of the quality of systematic reviews (SRs) and meta-analyses (MAs) of endoscopic ultrasound (EUS) requires complete and accurate reporting and methodology. To assess the reporting and methodological quality of SRs/MAs on EUS diagnosis and to explore the potential factors influencing articles&amp;amp;#39; quality. The quality of the reporting and methodology was evaluated in relation to the adherence of papers to the PRISMA checklist and the AMSTAR quality scale. The total scores for every criterion and for every article on the two standards were calculated. Data were evaluated and analyzed using SPSS17.0 and RevMan 5.1 in terms of publication time, category of reviews, category of journals, and funding resource. A total of 72 SRs/MAs was included, but no Cochrane Systematic Reviews (CSRs) were obtained. The number of SRs/MAs ranged from 1 in 1998 to 15 in 2013; 88.1% used the QUADAS tool; the average overall scores by PRISMA statement and AMSTAR tool were 19.9 and 5.4, respectively. Scores on some items showed substantial improvement after publication of PRISMA and AMSTAR. However, no reviews followed the criterion of protocol and registration, and only 11.1% of articles fulfilled the criterion of literature search. SRs/MAs from the Science Citation Index (SCI) were of better quality than non-SCI studies. Funding resource made no difference to quality. Regression analysis showed that time of publication and inclusion in the SCI were significantly correlated with total scores on the two standards. The reporting and methodological quality of SRs/MAs on EUS diagnosis has improved measurably since PRISMA and AMSTAR checklists released. It is hoped that CSR in this field will be produced. Literature searching and protocol criteria, as well as QUADAS-2 tool need to be addressed more in the future. Time of publication and SCI relate more to the overall quality of SRs/MAs than does funding resource.
2009 Fourth International Conference on Communications and Networking in China, 2009
In this paper, we propose an extended semidefinite-relaxation (SDR) method for multiple-input mul... more In this paper, we propose an extended semidefinite-relaxation (SDR) method for multiple-input multiple-output (MIMO) detection of high-order QAM signals. In the proposed method, high-order QAM constellations are represented by an equivalent virtually-antipodal form. Based on this form, the alphabet relaxation components in the existing SDR formulation can be constrained to the original alphabet set by additional inequalities. Simulation results demonstrate
Proceedings of the 11th IEEE Signal Processing Workshop on Statistical Signal Processing (Cat. No.01TH8563), 2001
Subband arrays have been proposed as a useful means to realize joint spatio-temporal domain equal... more Subband arrays have been proposed as a useful means to realize joint spatio-temporal domain equalization in digital mobile communications. They are used to mitigate channel impairment problems caused by inter-symbol interference (ISI) and co-channel interference (CCI). We propose normalized subband array and locally orthogonalized subband array techniques for channel equalization. The least square mean (LMS) algorithm is used for adaptation. The convergence performance of the proposed techniques is analyzed and compared with that of conventional space-time adaptive processing (STAP) techniques. It is shown that subband decompositions provide great flexibility in implementing spatio-temporal equalization. Both analytical and numerical simulation results demonstrate that the proposed subband array techniques substantially improve the convergence performance without significant additional computations
Proceedings of the Tenth IEEE Workshop on Statistical Signal and Array Processing (Cat. No.00TH8496), 2000
In this paper, we propose transform domain array processing schemes for DS-CDMA communications. S... more In this paper, we propose transform domain array processing schemes for DS-CDMA communications. Space-time adaptive processing (STAP) is a useful means to combat the multiuser interference (MUI) in CDMA systems. The computation burden and slow convergence are two major problems in implementing the STAP. This paper proposes optimum and sub-optimum transform domain arrays with different feedback schemes for CDMA communications.
With increasing attention put on the methodology of reporting guidelines, Moher et al. conducted ... more With increasing attention put on the methodology of reporting guidelines, Moher et al. conducted a review of reporting guidelines up to December 2009. Information gaps appeared on many aspects. Therefore, in 2010, the Guidance for Developers of Health Research Reporting Guidelines was developed. With more than four years passed and a considerable investment was put into reporting guideline development, a large number of new, updated, and expanded reporting guidelines have become available since January 2010. We aimed to systematically review the reporting guidelines published since January 2010, and investigate the application of the Guidance. We systematically searched databases including the Cochrane Methodology Register, MEDLINE, and EMBASE, and retrieved EQUATOR and the website (if available) to find reporting guidelines as well as their accompanying documents. We screened the titles and abstracts resulting from searches and extracted data. We focused on the methodology and repo...
2001 IEEE Third Workshop on Signal Processing Advances in Wireless Communications (SPAWC'01). Workshop Proceedings (Cat. No.01EX471), 2001
Electronically steerable passive array radiator (ESPAR) antennas are capable of spatially forming... more Electronically steerable passive array radiator (ESPAR) antennas are capable of spatially forming a beam toward the desired signal with the lowest cost, and are suitable to be employed in ad hoc wireless network systems. We propose a cascaded scheme for ESPAR antenna-based signal processing, where the beam toward the desired user terminal is formed in advance, and the equalizer for direct-sequence code division multiple access (DS-CDMA) signal waveforms is followed. According to the scheme, cochannel user-terminal signals and intersymbol interference signals are respectively suppressed by spatial filtering of the desired beam and the waveform-based adaptive equalization. The steady state and convergence performance of the proposed scheme is illustrated numerically by simulations
The Chinese-German Journal of Clinical Oncology, 2010
... Correspondence to: Xiaohu Wang. ... Lancet, 2005, 366: 20872106. Clark RM, Whelan T, Levine ... more ... Correspondence to: Xiaohu Wang. ... Lancet, 2005, 366: 20872106. Clark RM, Whelan T, Levine M, et al. Randomized clinical trial of breast irradiation following lumpectomy and axillary dissection for node-negative breast cancer: an update. Ontario Clinical Oncology Group. ...
The Chinese-German Journal of Clinical Oncology, 2011
Objective We carried out a meta-analysis to assess the effectiveness and safety of radiotherapy ... more Objective We carried out a meta-analysis to assess the effectiveness and safety of radiotherapy combined with surgery for gastric cancer. Methods Randomized Clinical Trials (RCTs) in which radiotherapy (preoperative, intraoperative and postoperative), was compared with surgery alone in resectable gastric cancer were identified by searching Cochrane Library (Issue 2, 2009), PubMed (Jan 1966–Jun 2009), EMBASE (Jan 1974–Jun 2009), Chinese Biomedical Literature Database
The objective of our study is to investigate the effect of triptolide on expression of thrombospo... more The objective of our study is to investigate the effect of triptolide on expression of thrombospondin-1 and transforming growth factor β1 in renal tubular cells. Human renal tubular epithelial cells were stimulated by different concentrations of triptolide (0.1, 1, and 10 μg/L) in the presence of angiotensin-II (10(-7 )mol/L). Real Time PCR was used to detect the mRNA expression of thrombospondin-1 and transforming growth factor β1. Western blot analysis was used to detect the protein expression. ELISA was used to detect the level of total and active transforming growth factor β1. The mRNA expression of thrombospondin-1 (3.66 ± 0.48 vs. 1.33 ± 0.26, p < 0.05) and transforming growth factor β1 (3.58 ± 0.59 vs. 1.26 ± 0.28, p < 0.05) were up-regulated obviously when stimulated by angiotensin-II. And the protein expression of thrombospondin-1 (0.5126 ± 0.0936 vs. 0.1025 ± 0.0761, p < 0.01) and transforming growth factor β1 (0.5948 ± 0.0736 vs. 0.1318 ± 0.0614, p < 0.01) wer...
Comprehensive monitoring of the quality of systematic reviews (SRs) and meta-analyses (MAs) of en... more Comprehensive monitoring of the quality of systematic reviews (SRs) and meta-analyses (MAs) of endoscopic ultrasound (EUS) requires complete and accurate reporting and methodology. To assess the reporting and methodological quality of SRs/MAs on EUS diagnosis and to explore the potential factors influencing articles&amp;amp;#39; quality. The quality of the reporting and methodology was evaluated in relation to the adherence of papers to the PRISMA checklist and the AMSTAR quality scale. The total scores for every criterion and for every article on the two standards were calculated. Data were evaluated and analyzed using SPSS17.0 and RevMan 5.1 in terms of publication time, category of reviews, category of journals, and funding resource. A total of 72 SRs/MAs was included, but no Cochrane Systematic Reviews (CSRs) were obtained. The number of SRs/MAs ranged from 1 in 1998 to 15 in 2013; 88.1% used the QUADAS tool; the average overall scores by PRISMA statement and AMSTAR tool were 19.9 and 5.4, respectively. Scores on some items showed substantial improvement after publication of PRISMA and AMSTAR. However, no reviews followed the criterion of protocol and registration, and only 11.1% of articles fulfilled the criterion of literature search. SRs/MAs from the Science Citation Index (SCI) were of better quality than non-SCI studies. Funding resource made no difference to quality. Regression analysis showed that time of publication and inclusion in the SCI were significantly correlated with total scores on the two standards. The reporting and methodological quality of SRs/MAs on EUS diagnosis has improved measurably since PRISMA and AMSTAR checklists released. It is hoped that CSR in this field will be produced. Literature searching and protocol criteria, as well as QUADAS-2 tool need to be addressed more in the future. Time of publication and SCI relate more to the overall quality of SRs/MAs than does funding resource.
2009 Fourth International Conference on Communications and Networking in China, 2009
In this paper, we propose an extended semidefinite-relaxation (SDR) method for multiple-input mul... more In this paper, we propose an extended semidefinite-relaxation (SDR) method for multiple-input multiple-output (MIMO) detection of high-order QAM signals. In the proposed method, high-order QAM constellations are represented by an equivalent virtually-antipodal form. Based on this form, the alphabet relaxation components in the existing SDR formulation can be constrained to the original alphabet set by additional inequalities. Simulation results demonstrate
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Papers by Kehu Yang