In order to improve the speech quality and auditory perceptiveness of electronic cochlear implant under strong noise background, a speech enhancement system used for electronic cochlear implant front-end was constructed. Taking digital signal processing (DSP) as the core, the system combines its multi-channel buffered serial port (McBSP) data transmission channel with extended audio interface chip TLV320AIC10, so speech signal acquisition and output with high speed are realized. Meanwhile, due to the traditional speech enhancement method which has the problems as bad adaptability, slow convergence speed and big steady-state error, versiera function and de-correlation principle were used to improve the existing adaptive filtering algorithm, which effectively enhanced the quality of voice communications. Test results verified the stability of the system and the de-noising performance of the algorithm, and it also proved that they could provide clearer speech signals for the deaf or tinnitus patients.
Algorithms ; Cochlear Implantation ; Cochlear Implants ; Electronics ; Humans ; Noise ; Signal Processing, Computer-Assisted ; Speech ; Speech Perception

TCM believes that apoplexia is a disease of deficiency in origin and asthenia in superficiality. The deficiency is mainly the Qi deficiency and the superficiality is turbid phlegm retention and blood stasis due to Qi deficiency. Therefore, the therapeutic method should treat the origin of apoplexy as well as its superficiality. Based on the pathogenesis of apoplexy of Qi deficiency and phlegm-blood stasis, Naomaitai Capsule was formulated with the functions of supplying Qi to consolidate the origin, activating blood flow, dissipating phlegm, dredging collaterals, and stopping endogenous wind.

0.05),but significant difference between the two groups of T2 patients(P=0.04

Objective To deterine the expression of TNF-related apoptosis inducing ligand (TRAIL) and its receptor DR5 in murine myocardium with acute viral myocarditis(VM).Methods We builted the model of VM.Eight mice of the VM group and the normal control group were sacrificed on the 7th,10th,14th,21st,28th day after inoculation CVB3 virus.The myocardial histopathological scores were counted.The terminal reansferase-mediated dUPT-biotin nick end-labeling (TUNEL) assays was used to quantified apoptosis rate.The expression of TRAIL and DR5 protein and mRNA were determined by the method of immunohistochemistry and reverse-transcription polymerase chain reaction (RT-PCR).Results The expression of TRAIL and DR5 protein and mRNA were found in myocardium of both the normal control group and the VM group.The expression of TRAIL protein of the VM group(14th) were significantly higher than which in the normal group at the same time and the VM group(7th)(F=9.17,P<0.01).The DR5 protein of the VM group(10th,14th,21st)were significantly higher than which in the normal group at the same time and the VM group(7th)(F=13.32,P<0.01).The expression of TRAIL and DR5 protein were positive correlated with the myocardial histopathological scores and the apoptosis rate.The expression of TRAIL mRNA of the VM group(10th) were significantly higher than which in the normal group at the same time and the VM group(7th)(F=10.86,P<0.01).The DR5 mRNA of the VM group(10th,14th)were significantly higher than which in the normal group at the same time and the VM group(7th)(F=22.75,P<0.01).Conclusion High characteristic expressions of protein/mRNA TRAIL and DR5 were observed in the myocardium of mice with VM.The level was positive correlationed with the account of pathology and the rate of apoptosis.The apoptosis induced by TRAIL and DR5 may participate in the pathophysiological processes of VM.

Objective To observe the clinical effects of treating petptic ulcer with Complex Tianqi Weitong Capulse.Methods 163 cases of petptic ulcer were randomly divided into a treatment group with 80 cases and a control group with 83 cases.The treatment group was given Complex Tianqi Weitong Capulse,and the control group Was treated with Famotidine and Metronidazole.Results After treatment,the total effective rate in the treatment group was obviously better than that in the control group (P＜0.05);the extinctive time of some clinical symptoms and physical signs in the treatment group were shorter than that in the conutrol group(P＜0.01 or P＜0.05).Conclusion Complex Tianqi Weitong Capulse is effective in treating peptic ulcer.

The paper discusses the difference in postgraduate training between China and the United States,intending to supply some advanced experiences for Chinese postgraduate education reform.

Objective To study the distribution and homology of foodborne-associated extended-spectrumβ-lacta-mases (ESBLs)-producing Escherichiacoli (E. coli).Methods ESBLs-producing E. coli were isolated from differ-ent food specimens in Shaoguan from 2014 to 2015,strains were typed with pulsed-field gel electrophoresis (PFGE) and BioNumerics software.Results 1 1 strains of diarrhea-causing E. coli and 29 strains of ESBLs-producing E. co-li were isolated from 347 different sources of food specimens. PFGE analysis showed that 29 strains could be divided into 21 cluster groups,group A was predominant pattern,which included 7 strains(J2,J3,J4,J7,J9,B4,S3), group B included 2 strains (J6,J8),the other strains were sporadic clones. Similarity coefficient (SC)of 3 strains (J2,J7,J9)from health practitioners was 100% ,SC of strains from drinking water and patients with diarrhea (B4) was 97. 1% ,SC of S3 strain and 4 strains (J2,J3,J7,J9 )from health practitioners were all>90. 0% . Conclusion Foodborne-associated ESBLs-producing E. coli are widely distributed in food,water,animal,and pop-ulations,and can be transmitted through food chain,surveillance should enhanced to avoid further spread.

Ovarian cancer is the highest death rate of gynecologic malignant tumor .Currently,people rec-ognize standard treatment for ovarian cancer was that reduction -Tumor cells of platinum based chemotherapy af-ter surgery.But for those patients who have developed into advanced cancer that cannot be operated the surgeries directly,the application of preoperative Neoadjuvant chemotherapy ( NACT) does have the superiority .which is recognized by the majority of clinical doctors ,and has been widely used in the treatment of advanced malignant tumor.It is worthy to discussing which part of patients should choose the initial treatment of Neoadjuvant chemo -therapy,rather than a direct treatment of destroying tumor cells .This article is summarizing the empirical cases based on related research ,in order to help clinicians to make a decision on the treatment of ovarian cancer .