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

Objective To explore therapeutic effects of acupuncture combined with puerarin injection in the treatment of patients with sudden deafness.Methods 83 patients with sudden deafnss were randomly divided into 2 groups.Control group(n =38) received puersrin injection.Treatment group ( n =45 ) received acupuncture received acupuncture combined with puerarin injection.The effect was compared between the two groups.Results The effective rate of treatment group was 86.7％,and was higher than that of control group(73.6％ ) ( P ＜0.05 ).The hearing function of treatment group was better than that of the control group after treatment ( t =6.21,P ＜ 0.01 ).Conclusion Acupuncture combined with puerarin injection in the treatment of patients with sudden deafness could obtain good curative effect,and it was worth to be spread and studied in the clinic.

Although there are plenty of principles and standards on translation of traditional Chinese medicine into English, still mistranslation can not be completely avoided. This paper analyzed the phenomenon of mistranslation from perspective of its causes, cases and suggestion in order to provide enlightenment on improving translation levels.

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 .

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

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.

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.