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INTRODUCTION In order to satisfy the high throughput and lowlatency requirements for next generation mobilecommunication systems, the parallelization of de-coding of Turbo codes (Berrou et al., 1993) has re-ceived remarkable attention. As the interleav-ing/deinterleaving operations may result in memorycontentions, interleaver design (Dinoi and Benedetto,2005; Dobkin et al., 2005; Popovski et al., 2004; Thulet al., 2002) is the bottleneck of the parallel Turbodecoder. For certain inter… 相似文献
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INTRODUCTION Shengmaiyin or Shengmaisan, one of the famous herbal recipes in traditional Chinese medicine, is made from Radix ginseng, Ophiopogon and Schi- sandra. It is used to treat hypotension (Chen et al., 2000; Gui, 2001), cardiovascular system diseases (Qian et al., 2004; Zeng and Zeng, 2004), to increase immunity (Wu et al., 1997; Guo et al., 2004) and cure other diseases (Li et al., 1996; Liu et al., 1998; Fang et al., 2000; Yi et al., 2003; Xu et al., 2003; Wang et al., 200… 相似文献
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This special feature contains three review articles that summarize recent advances pertaining to tumor immunobiology.Normalization of antitumor immunity through checkpoint inhibitors has achieved significant clinical success and benefited many cancer patients.However,not all cancer patients respond to these treatments,and among the responders,some may develop resistance and others may suffer autoimmunity that requires intervention. 相似文献
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INTRODUCTION Microarray technique is a powerful laboratory tool for simultaneously monitoring genome-wide expression in different conditions. One of the most important applications of microarray technique is the classification of tumor subtypes or different disease states to facilitate clinical researchers in diagnostic, therapeutic or prognostic decisions for patients (Golub et al., 1999; Alizadeh et al., 2000; Spindler, 2006). The generally used approaches, such as cluster analysis and… 相似文献
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Jiang CY Wang JA He H Sun Y Zhou BQ 《Journal of Zhejiang University. Science. B》2005,6(12):1153-1156
INTRODUCTION Pulmonary veins(PV)may play an importantrole in both the initiation and maintenance of parox-ysmal atrial fibrillation(AF)(Fynn and Kalman,2004).Curative treatment of patients with paroxys-mal AF is possible by radiofrequency ablation,mak-ing segmental or linear lesions around the ostia ofPVs using a3-dimentional mapping system(Carto)(Pappone et al.,2000;2001;Oral et al.,2003).Multi-slice spiral computed tomography(MSCT)could generate a3-dimentional image of left atrium… 相似文献
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Cancer is a genetic disorder.Although heredi-tary cancers account for only a small fraction of all tumors,most cancers are caused by a variable mix of heredity and environment that leads to accumulations of genetic alterations and then uncontrolled cell pro-liferations(Kops et al.,2005).In addition,genetic alteration is one of the a few most important bio-logical factors that determine the diagnosis and prognosis of different cancers and dictate the treat-ment strategies for cancer patients.Fu… 相似文献
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《浙江大学学报(A卷英文版)》2021,(3)
正1 Introduction In recent years the thermomechanical behavior of soils has attracted more attention due to an increasing number of geotechnical practices involving thermal effects (Bourne-Webb et al,2013;Olgun et al.,2014;Loria et al,2018;Peng et al.,2018;Pinyol et al.,2018;Kaddouri et al.,2019;Mu et al.,2019). 相似文献
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Jiaqi FAN Changjie YU Kaida REN Wanbing LIN Stella NG Zexin CHEN Xinping LIN Lihan WANG Qifeng ZHU Yuxin HE Jubo JIANG Xianbao LIU Jian'an WANG 《Journal of Zhejiang University. Science. B》2021,22(3):241-247
Aortic stenosis(AS)is a progressive heart valve disease occurring predominantly in older patients.According to a survey in a western country,the prevalence of AS is nearly 6.4%in patients over 75 years old(Carabello and Paulus,2009).Transcatheter aortic valve replacement(TAVR)is an alternative method for AS patients.Previous studies have described how up to 66%of TAVR patients have concomitant baseline kidney dysfunction(Ferro et al.,2015;Gargiulo et al.,2015).The majority of patients can benefit from the TAVR procedure with the recovery of kidney function. 相似文献
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INTRODUCTION Bickerstaff’s brainstem encephalitis(BBE)is characterized by acute onset of ophthalmoplegia,ataxia,disturbance of consciousness,hyperreflexia or Babinski’s sign(Bickerstaff,1957;Al-Din et al.,1982).Most of the patients generally have a good outcome.Only a small proportion of the patients die or show incomplete remission with residual symp-toms(Odaka et al.,2003).Because of its rarity,there has been no report on BBE patients in China.We here report the first case of BB… 相似文献
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INTRODUCTION Colorectal cancer is the most common cancer ofthe Western world and accounts for approx.Elevenpercent of all cancer deaths in the United States.Aswith other malignancies,colorectal adenocarcinomais thought to develop through the accumulation ofgenetic alterations that inhibit cell growth.Two of theoncogenes that have been implicated in this processare bcl-2and p53,the products of which are involvedin apoptosis,cell proliferation and tumor develop-ment(Garewal et al.,1996).S… 相似文献
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INTRODUCTION Lipase (EC 3.1.1.3) is an important hydrolysis enzyme (Jaeger et al., 1994) excreted to the envi-ronment by plant roots and microorganisms. Many pollutants such as organophosphorus pesticides and synthetic polyesters and polyamides can be degraded by lipase (Monroy-Noyola et al., 1999; Marten et al., 2003). In soil, enzymatic reactions occur in a het-erogeneous rather than homogeneous environment (Huang et al., 1998). Catalytic function of lipase, an extracelluar enzyme, … 相似文献
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Parameters selection in gene selection using Gaussian kernel support vector machines by genetic algorithm 总被引：2，自引：0，他引：2
INTRODUCTION Recent techniques based on oligonucleotide or cDNA microarrays allow the expression level of thousands of genes to be monitored in parallel (Golub et al., 1999). A critically important factor for cancer diagnosis and treatment is the reliable prediction of tumor progression. A remarkable advance for mo- lecular biology and for cancer research is cDNA mi- croarray technology. cDNA microarray datasets havea high dimensionality corresponding to the large number of genes monit… 相似文献
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An efficient method for tracing planar implicit curves 总被引：1，自引：0，他引：1
YU Zheng-sheng CAI Yao-zhi OH Min-jae KIM Tae-wan PENG Qun-sheng 《浙江大学学报(A卷英文版)》2006,7(7):1115-1123
INTRODUCTION Tracing a planar implicit curve f(x, y)=0 on a rectangular region [xl, xr]×[yb, yt] is of great interest in Computer-Aided Design and Computer Graphics. While parametric curves are easy to plot, plotting implicit curves is a challenging problem. Planar im- plicit curve plotting method can be classified into two categories (Shou et al., 2005; Martin et al., 2002; Lopes et al., 2002). In the first category are subdivi- sion methods (Shou et al., 2005; Martin et al., 2002) … 相似文献
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INTRODUCTION In recent years magnetic measurements, whichare simple, rapid, inexpensive, and nondestructive,are increasingly being used in a wide range of envi-ronmental sciences such as identification of source ofindustrial pollutants and atmospheric particulates(Hunt et al., 1984; Kapicka et al., 2003; Lecoanet etal., 2003; Moreno et al., 2003; Shu et al., 2001),mapping of soils and sediments pollution (Hanesch etal., 2003; Hoffmann et al., 1999; Matzka and Maher,1999), and a proxy p… 相似文献
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Identification of Rhodiola species by using RP-HPLC 总被引：2，自引：0，他引：2
INTRODUCTION The roots of Rhodiola species, one of the im-portant traditional Chinese herbal medicines, have anti-viral (Sun et al., 1993), anti-tumor (Wang et al., 1992), anti-ageing (Yi et al., 1992), anti-oxygen de-ficiency, anti-radiation (Luo et al., 1996) effects and other pharmacological properties (Xu et al., 2000). Ten Rhodiola species distribute in the Tianshan Mountains areas of China. Biologically active com-pounds content in the roots has large variation and the value of… 相似文献
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Effective extraction of elastase from Bacillus sp. fermentation broth using aqueous two-phase system 总被引：1，自引：0，他引：1
INTRODUCTION Aqueous two-phase system (ATPS) is widely used in biochemistry and biotechnology for purifica- tion of proteins (Diamond and Hsu, 1992; Balasubramaniam et al., 2003), enzymes (Pan et al., 2001; Bim and Franco, 2000), amino acids (Li et al., 2002), antibiotics (Yang et al., 1994; Guan et al., 1994), nucleic acids (Ohlsson et al., 1978; Kimura, 2000), aroma compounds (Marco et al., 2000) and lactic acid (Planas et al., 1998). ATPS is mainly composed of two-incompatible p… 相似文献
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Resistin levels of serum and follicular fluid in non-obese patients with polycystic ovary syndrome during IVF cycles 总被引：1，自引：0，他引：1
Lu XE Huang HF Li MG Zhu YM Qiang YL Dong MY 《Journal of Zhejiang University. Science. B》2005,6(9):897-902
INTRODUCTION Polycystic ovary syndrome (PCOS) is a leading cause of anovulatory infertility and affects 5%~10% of reproductive age women (Dunaif, 1997). It is characterized by hyperandrogenemia and chronic anovulation and is associated with insulin resistance, obesity and increased risk for type 2 diabetes (Kno- chenhauer et al., 1998). Insulin resistance is thought to play an important role in aetiology of PCOS (Chang et al., 1983; Shoupe et al., 1983). In vitro and in vivo studies … 相似文献
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WU Xiao-mo§ FU Jing-geng§ GE Wang-zhong ZHU Jiang-yan WANG Jun-yong ZHANG Wei QIAN Wei HUO Ke-ke 《Journal of Zhejiang University. Science. B》2007,8(2):81-87
INTRODUCTION Hepatocellular carcinoma (HCC) is the sixth most common cancer in new cases per year (626 000) and the third most common cancer resulting in death (598 000) (Parkin et al., 2005). China is the country most seriously suffering from HCC, accounting for 55% of total cases and deaths worldwide per year. The clinical behavior of HCC is heterogeneous and difficult to predict, and in patients undergoing resec-tion, recurrence rates can be as high as 50% in two years and life ex… 相似文献
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Interval standard neural network models for nonlinear systems 总被引：1，自引：0，他引：1
LIU Mei-qin 《浙江大学学报(A卷英文版)》2006,7(4):530-538
INTRODUCTION Neural networks have been successfully em- ployed for controlling nonlinear systems since the 1990’s (Narendra and Parthasarathy 1990; Hunt et al., 1992; Suykens et al., 1996). In these nonlinear control systems, neural networks have been used either for modelling the system to be controlled, or for design- ing a controller, or both. Recently, the robustness issue has been an important focus of research in neuro-control circles (Suykens et al., 1996; Wams et al., 1999; Aya… 相似文献
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INTRODUCTION Grid (Foster et al., 2001) technology is one ofthe most important ones to appear in recent years.The recent big progress is that scientists (Foster etal., 2002; Roure et al., 2001; Rana and Walker,2002) proposed service-oriented architectures suchas Open Grid Services Architecture (OGSA) (Fos-ter et al., 2002) that integrated the so-called com-putational/data Grid architecture (Foster et al.,2001) with Web services (Grid Web ServicesWorkshop, 2001). In the service-ori… 相似文献