Datasets are the basis for training and evaluating speech translation systems,playing a vital role in driving innovative research in speech translation and facilitating progress in the field.However,the Mongolian-Chinese speech translation corpus is now relatively scarce,making it difficult with sufficient scale and diversity to support the training of translation models.As a result,the development of Mongolian-Chinese speech translation technology is faced with great challenges.In order to address this problem,we have constructed a dataset of Mongolian-Chinese speech translation for the news field in this study.First,we referred to previous research ideas on speech translation datasets to convert the publicly available Mongolian speech recognition dataset into a speech translation dataset.After data processing,the dataset is submitted for expert review and inspection.Through correction and analysis of this dataset,we produced a high-quality dataset of Mongolian-Chinese speech translation.This dataset is oriented to the news field,covering politics,economy,culture and other topics,with a total duration of 106.5 hours.There are 47,935 audio entries from 258 speakers with text in both Mongolian and Chinese.The total size of the dataset is 19.6 MB.The dataset fully takes into account the balance of letters to ensure the usability of the data.This dataset is expected to provide a certain data basis for exploring low-resource Mongolian-Chinese speech translation,promote the development of Mongolian-Chinese speech translation technology,and facilitate Mongolian-Chinese cultural exchanges.

An improved dovetail shape left-handed circular polarizer (LHCP) is proposed in this paper. The circularly polarized wave is obtained by adjusting the parameters of the improved dovetail shape dielectric plate inside the circular waveguide. The impedance bandwidth with $\vert \mathrm{S}_{11}\vert \leqslant-20\text{dB}$ for the LHCP is 61.7% (17.57-33.25 GHz), as shown in the simulated results.

Driven by the application requirements of multi-band systems, multi-band common-aperture antenna has always been a research focus. This paper presents a compact dual-band dual circularly polarized feed based the Choke horn and circular dipole. This feed operating at S-band (2.2GHz-2.4GHz) and Ka-band (18.2GHz-21.2GHz) has almost identical -10dB radiation pattern. When illuminating the parabolic reflector antenna with its aperture of 1.8m and ratio of focal length to diameter of 0.375, the reflector antenna has the gain of 30dB/50dB and the aperture efficiency of 55%/69% at 2.3GHz/20.2GHz. The simulation results show that this presented dual-band dual circularly polarized feed can be a good candidate for satellite, remote sensing and other applications.

This article presents a dual-polarized corrugated horn antenna incorporated a turnstile orthomode transducer (OMT) covering the full Ka-band (26.5–40 GHz). A three-stepped cylindrical tuning stub scattering element is designed in the turnstile junction to combine/split the two linearly polarized waves with high isolation. The proposed turnstile OMT shows a good simulated return loss better than 20 dB and a high isolation higher than 57 dB within the whole Ka-band. Then, a corrugated horn antenna with five-stage choke rings is designed. Finally, the proposed horn antenna incorporated in the turnstile OMT is fabricated and measured. The measured impedance bandwidth for |S11/22|≤ −15 dB is 50.7% from 25 to 42 GHz. The measured peak gain is 11.9 dBi. The proposed antenna system is a promising candidate for the 5G millimeter-wave applications.

Due to the lack of public datasets, few researches focus on speech translation in minority languages. To this end, this paper constructs a dataset of Mongolian-Chinese speech translation, named as NMLR-Mon2Chs ST. The dataset consists of Mongolian speech, Mongolian and Chinese text. First, Mongolian speech were obtained from 36 Mongols aged between 20 and 25 by recording on their mobile phones. Then, the corresponding Chinese texts were annotated by professionals. In order to make sure the quality of the dataset, the preprocessing was done, such as removing the quiet speech, resampling, and normalization. As a result, a total of 25 hours of high-quality data are obtained, and the average duration of audio in the dataset is 4.2 seconds. The establishment of this dataset allows researchers access to speech translation for minority languages.

A slotted waveguide antenna array working in Ka-band with the size of 80.91 mm×62 mm is proposed in this paper. The proposed antenna is based on Stevenson equivalent circuit analysis method, and the sidelobe level was reduced by Chebyshev distribution amplitude weighing, a 9×12 units array is designed. The antenna array consists of nine 12 slot waveguide slot antennas, which are fed by a waveguide with nine inclined slots. Combined with relevant antenna design theory and software, the slot dimensions and offset are analyzed and optimized. The simulation results show that the sidelobe level of the array is less than - 25dB, the maximum gain is 27.5dBi.

A compact, high-gain, and high-efficiency series-feed continuous transverse stub (CTS) antenna array of 8 elements is presented in this paper. Gradient step CTSs and grooves between them are introduced to improve the impedance matching and directivity of the CTS antenna array. The numerical simulation results show that this CTS antenna array (183.07 mm*224.50 mm) can achieve low return loss <-10 dB, high gain of 28.2 dB at 12.5 GHz, and high aperture efficiency of more than 55% (maximum 72.6%) within the band of 12.25 GHz to 12.75 GHz.

目的 研究和探讨碳青霉烯类耐药肠杆菌科细菌(CRE)对临床常用抗菌药物敏感性和携带耐药基因型.方法 收集本院2018年1月-2019年10月临床分离CRE菌株,对其进行细菌鉴定及药敏试验,并应用PCR技术筛选bla KPC blaNDM、blaIMP、blaVIM、blaOXA-48、bla CTX-M、blaSHV、blaTEM基因,扩增产物纯化后进行测序,经BLAST比对,得到耐药基因型.结果 60株CRE菌株对替加环素耐药率为3.3％,对米诺环素耐药率为16.7％,对复方新诺明耐药率为60.0％,对其他药物均高度耐药(＞75％);60株碳青霉烯酶阳性57株,基因型以KPC-2(55株)为主,未检出OXA-48及VIM,其中22株同时产生2种碳青霉烯酶,35株产生一种碳青霉烯酶.所有产碳青霉烯酶肠杆菌科细菌(CPE)在携带碳青霉烯酶耐药基因同时携带了不同程度的ESBL基因.结论 本院CRE株肺炎克雷伯菌以产KPC-2为主,大肠埃希菌以产KPC-2+NDM-5为主,CPE菌株携带ESBL率为100％,60株CRE对替加环素和米诺环素耐药率较低.

目的 分析和探讨非O1非O139群霍乱弧菌临床特点和实验室特征.方法 观察本院一例胰腺癌患者非O1非O139霍乱弧菌临床感染及预后情况,通过形态学检查、菌落特征、生化反应、16S rRNA基因测序及血清学试验对待检菌进行鉴定并根据CLSI文件进行药敏试验.结果 患者有发热、腹泻症状,血培养中检出霍乱弧菌,经血清学试验鉴定为非O1非O139群霍乱弧菌,经左氧氟沙星治疗后痊愈,10 d后出院.结论 免疫低下患者发热腹泻应当提防非O1非O139引起的感染,应尽早送检实验室检查,明确诊断,规范治疗.

目的 观察基因测序与质谱分析,在奴卡菌菌种鉴定方面的作用.方法 收集2例肺部奴卡菌感染患者的奴卡菌病原体,经过纯分培养,均同时进行了质谱检测和16S rRNA以及hsp65基因测序.结果1例患者质谱分析以及基因测序均证实为盖尔森基兴奴卡菌;另1例患者的质谱分析提示为盖尔森基兴奴卡菌,但16S rRNA以及hsp65基因测序则均证实为脓肿奴卡菌.结论 奴卡菌作为一种重要的机会致病菌,传统微生物学检测耗时费力,新型质谱分析( MALDI-TOF MS)有助于鉴定菌种,但基因测序仍是奴卡菌菌种鉴定的金标准.

Objective To investigate the distribution and drug resistance of pathogen in patients with biliary tract infection,and to guild clinical application of antibiotics.Methods The cases of biliary tract infection with positive bile pathogen culture in our hospital from September 2014 to August 2016 were retrospectively analyzed,and the distribution and drug resistance of 143 strains of pathogen from those cases were statistically analyzed using WHONET 5.4.Results Among the 143 strains of pathogen,there were 77 (53.8％) gram-negative bacilli,63 (44.1 ％) gram-positive coccus and 3 (2.1 ％) fungal strains.The most common pathogenic bacteria in biliary tract infection were Enterococcus faecalis (12.6 ％,18/143),Enterococcusfaecium (11.9％,17/143),Klebsiella pneumoniae (11.2％,16/143),Escherichia coli (9.1％,13/143) and Pseudomonas aeruginosa (8.9％,12/143).The susceptibility tests revealed that resistant rates of gram negative bacilli against amikacin and doripenem were fairly low,and of gram-positive coccus against linezolid,daptomycin and vancomycin were also fairly low.Conclusion In biliary tract infection,the infectious rate of gram positive coccus increased year by year,though the rate of gram-negative bacilli took the lead invariably.Clinical selection of antibiotics should be more reasonable and specific,as the pathogen developed resistance to the most common antibiotics obviously.

In this letter, a novel folded monopole antenna with an ultrawideband (UWB) bandwidth and omnidirectional radiation performance has been proposed. An inverted “S”-type structure was formed by folding the planar monopole, which not only realizes dimension reduction, but also contributes to a decrease in the size of the ground plane; the proposed monopole antenna, meanwhile, has a more circular radiation pattern with the frequency ratio of 3.4:1, compared to the planar monopole antenna. Simulation has been carried out together with the measurement of the fabricated antenna. Good agreement between the measured and simulated results can be observed, showing that the antenna is capable of working in the frequency range from 3.1 to 10.6 GHz with return loss less than -10 dB.

库伦旗位于内蒙古自治区通辽市东南部,全旗土地面积4,716平方公里,现有耕地面积138万亩,90％的耕地属于旱田,地形多属于沙漠、丘陵、山区,多年受地理环境和地下水资源的制约,库伦旗的农村土地整治难度大、整治规模小.为了突破库伦旗农村土地整治工作在地形方面的障碍,从2014年开始,通辽市国土资源局与库伦旗人民政府紧密结合,组织干部走基层,搞调研,多次在库伦旗开展干部、群众讨论,聘请专家论证,紧紧依托库伦旗大面积丘陵、沙地、坨沼地等自然资源条件,因地制宜,积极探索开展“以补代投”沙地衬膜水稻试点土地整治项目建设.

近日,内蒙古自治区耕地质量等别年度更新评价及监测技术培训班在中国农业大学顺利闭幕.此次培训针对拟参加此项工作的技术承担单位组织开展,经过为期两天的培训,各单位业务骨干学习了内蒙古自治区耕地质量等别年度更新评价及监测技术相关政策、理论及专业技术等培训内容.

设计和仿真了一种组合式的超宽带TEM喇叭天线.通过采用指数渐变的TEM喇叭天线与矩形框的组合形式,扩展了天线的低频截止频率.同时,为了提高高频端天线的增益,对天线口面做圆弧过渡.使用电磁仿真软件CST Microwave Studio(R)进行建模与仿真分析.根据仿真结果制作了天线,在微波暗室内进行测试.结果表明,天线在0.78～20 GHz的频带内反射损耗小于2.5,比带宽达到了25.6∶1,在整个工作频段内平均增益为10 dBi,达到了预期的设计目的.

为进一步加快推进兴安盟2014年高标准基本农田建设进度,全面了解内蒙古自治区扶贫旗县农村土地整治工作进展情况,兴安盟土地整治中心在接到内蒙古自治区国土资源厅下发的有关文件后,于10月11日在兴安盟国土资源局组织召开了由各旗县市分管土地整治工作领导及整治中心主任参加的专项会议.

不久前,内蒙古自治区国土资源厅赵大勇副巡视员率内蒙古自治区财政厅李玉洁副处长、内蒙古自治区国土资源厅财务处处长路宝玲、耕保处处长陈巴图、内蒙古自治区土地整治中心闫旭东主任等一行7人组成调研组,对呼伦贝尔市和兴安盟农村土地整治工作进行了专项调研,并实地检查了两盟市的9个项目区,与地方政府、村书记及村民进行了实地交流,与盟市、旗县国土资源局.监理和施工等单位代表进行了座谈,详细了解了项目建设进展、资金使用管理及后期管护等情况,了解了当地群众参与项目建设情况,征询项目区群众对实施项目的意见和建议,并对建设单位提出了具体要求.

不久前,赤峰市土地整治中心主任李云涛一行对全市12个旗、县、区的在建整治项目进行了督查,督查过程中,对项目的施工进度、施工质量、内业资料等进行了详细的检查. 其中,对项目施工过程中亟须解决的难题给予了现场解答,并对项目施工进度和质量进行了重点检查.对于施工进度快、质量好的项目给予了肯定和表扬,并争取保质保量完成项目验收.

目的 对尿路感染的病原菌分布、耐药性及临床用药进行分析,为临床合理用药提供依据.方法 对2011年1月-2012年12月在中国人民解放军第八五医院就诊的尿路感染患者病原菌鉴定及药敏以及临床的用药进行回顾性分析.结果 导致我院患者尿路感染前三位细菌依次是大肠埃希菌,屎肠球菌和粪肠球菌,细菌耐药率普遍较高,尿细菌培养送检前用药率较高.结论 大肠埃希菌仍然是尿路感染最常见的致病菌,引起尿路感染的病原菌耐药性较高,临床应当根据药敏合理用药.