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经皮肾镜取石术后尿胸1.报告

中华泌尿外科杂志 2024年第6期45卷 475-476页

作者：徐君林谢江凌冉强李仁举林杰重庆大学附属黔江医院泌尿外科重庆409000

尿胸是经皮肾镜取石术后罕见并发症。本文报道1.患者,经皮肾镜取石术后出现呼吸困难、发热,胸部CT检查示胸腔积液。行胸腔穿刺,胸腔积液生化检查确诊为尿胸。经胸腔穿刺置管引流,患者呼吸困难未完全缓解,最终行胸腔镜手术后治愈。

关键词：尿胸胸腔积液经皮肾镜取石术

Oncological outcomes of patients with ductal adenocarcinoma of the prostate receiving radical prostatectomy or radiotherapy

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Asian Journal of Urology 2021年第2期8卷 227-234页

作者： Mengzhu Liu Kun Jin Shi Qiu Pengyong Xu Mingming Zhang Wufeng Cai Xiaonan Zheng lu Yang qiang Wei Institute of Urology Department of UrologyWest China HospitalSichuan UniversityChengduChina Center of Biomedical Big Data West China HospitalSichuan UniversityChengduChina Institute of Urology Department of Urologythe First People’s HospitalYantaiChina

Objective:To evaluate the oncological outcomes of ductal adenocarcinoma of the prostate(DAC)managed with radical prostatectomy(RP)or radiotherapy(RT)and optimize the proper treatment modality to DAC ***:The cohorts included a total of 528 patients from the Surveillance,Epidemiology and End Results(SEER)database,354 receiving RP and 1.4 receiving *** proportional hazards regressions were performed to assess cancer specific mortality(CSM)and overall mortality(OM)between treatment groups.A competing risk analysis was further *** analyses by age and level of prostate-specific antigen(PSA)were *** score matching was ***:Patients managed with RP had lower risks of CSM and OM compared with RT(before matching:Hazard ratio[HR]=0.24,95%confidence interval[CI]0.1.-0.47 and HR=0.26,95%CI 0.1.-0.40,respectively;after matching:HR=0.1.,95%CI 0.04-0.82 and HR=0.28,95%CI 0.1.-0.70,accordingly).Subgroup analyses demonstrated that patients in the middle tertile of the age or with lower tertile PSA level managed with RP took lower risks of OM significantly(HR=0.1.,95%CI 0.06-0.57,p1.and HR=0.1.,95%CI 0.06-0.54,p1..Conclusion:Among patients with DAC,treatment with RP was associated with better survival outcomes in comparison with *** with DAC in the middle tertile of the age and with lower tertile PSA level benefited the most from RP.

关键词： Ductal adenocarcinoma of the prostate Cancer specific mortality Overall mortality Radical prostatectomy Radiotherapy

Eigenstructure Assignment for a Class of Composite Systems: a Complete Parametric Method

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Eigenstructure Assignment for a Class of Composite Systems: ...

第二十四届中国控制会议

作者： Wang Guosheng~1. Lv qiang~1. Liang Bing~2, Duan Guangren~2 (1. Department of Control Engineering, Academy of Armored Force Engineering, Beijing 1.0072 2. Center for Control Theory and Guidance Technology, Harbin Institute of Technology, Harbin 1.0001.

＜正＞ This note considers eigenstructure assignment in a class of series-parallel composite systems via state feedback. By utilizing a general parametric solution to so-called Sylvester matrix equations, a complete parametric method for the proposed eigenstructure assignment problem is presented. This parametric method offers the parametric expressions of all the state feedback gain matrices and all the closed-loop eigenvector matrices which can guarantee that the closed-loop systems have the desired eigenvalues and the desired eigenvectors. The parametric vectors in this method offers all the design degrees of freedom, which can be selected to satisfy some specified performances in control system designs. This method utilizes directly the special structure of the series-parallel composite system matrices, thus this method is simple, convenient to be used in applications. An illustrative example shows the simpleness and effectiveness of this proposed parametric method.

关键词： Series-parallel composite systems state feedback eigenstnicture assignment a parametric method

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产前超声发现胎儿鼻腔纤维脂肪瘤1.

中华围产医学杂志 2024年第4期27卷 335-336页

作者：刘锋魏传敏张璐马斌甘肃省妇幼保健院超声医学中心兰州730050

本文报道了1.胎儿期发现、新生儿期确诊的鼻腔纤维脂肪瘤病例。孕24周超声检查发现胎儿左侧鼻孔处等回声结节,孕期动态观察,结节未见明显增大。胎龄38周因"因妊娠合并亚临床甲状腺功能减低、胎膜早破"剖宫产出生。生后3个月行手术切除... 详细信息

本文报道了1.胎儿期发现、新生儿期确诊的鼻腔纤维脂肪瘤病例。孕24周超声检查发现胎儿左侧鼻孔处等回声结节,孕期动态观察,结节未见明显增大。胎龄38周因"因妊娠合并亚临床甲状腺功能减低、胎膜早破"剖宫产出生。生后3个月行手术切除结节,病理检查确诊为纤维脂肪瘤。术后1.个月婴儿随访未见复发。

关键词：纤维脂肪瘤胎儿鼻腔超声

Emerging energy chemistry in lithium-sulfur pouch cells

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Science China Chemistry 2021年第3期64卷 337-338页

作者： Bo-Quan Li qiang Zhang Advanced Research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China

On pursuing high-energy-density energy storage systems beyond the current lithium-ion battery technique, lithium-sulfur(Li-S) batteries have attracted worldwide attention due to their ultrahigh theoretical energy density up to 500 Wh kg-1.1.. The unique Li-S chemistry based on the conversion reactions between solid sulfur, dissolved lithium polysulfides, and solid lithium sulfide affords thermodynamic advantages including high cathode specific capacity and low anode potential [2].

关键词： battery lithium energy

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既有网架杆件外包钢管加固技术试验研究

工程抗震与加固改造 2024年第2期46卷 152-156,173页

作者：张荣强刘浩东律帅驰张彦龙李华峰郭瑞顺马志斌闫俊男中国建筑科学研究院有限公司北京100013 机械工业第九设计研究院股份有限公司吉林长春130063

针对既有网架结构中承载能力不足的构件,提出了一种外包钢管的加固方法,该方法通过将外包钢管与杆件两端球节点焊接,使其直接承担网架荷载,并在内外管中间设置衬管以促进二者的共同作用,进而提高加固后杆件的整体承载能力,该加固方法可... 详细信息

针对既有网架结构中承载能力不足的构件,提出了一种外包钢管的加固方法,该方法通过将外包钢管与杆件两端球节点焊接,使其直接承担网架荷载,并在内外管中间设置衬管以促进二者的共同作用,进而提高加固后杆件的整体承载能力,该加固方法可有效针对网架承载能力不足的杆件进行加固,通过仿真和试验分析,该加固方法具有较好的加固效果和工程实施性。

关键词：网架加固外包钢管球节点焊接衬管

Adaptive stochastic resonance method for weak signal detection based on particle swarm optimization

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Instrumentation 2015年第2期2卷 3-10页

作者： XING Hongyan ZHANG qiang lu Chunxia Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science & Technology Key Laboratory of Meteorological Observation and Information Processing of Jiangsu Province Nanjing University of Information Science & Technology

In order to solve the parameter adjustment problems of adaptive stochastic resonance system in the areas of weak signal detection,this article presents a new method to enhance the detection efficiency and availability in the system of two-dimensional Duffing based on particle swarm ***,the influence of different parameters on the detection performance is analyzed *** correlation between parameter adjustment and stochastic resonance effect is also discussed and converted to the problem of multi-parameter ***,the experiments including typical system and sea clutter data are conducted to verify the effect of the proposed *** show that the proposed method is highly effective to detect weak signal from chaotic background,and enhance the output SNR greatly.

关键词： Adaptive stochastic resonance two-dimensional Duffing oscillator weak signal detection particle swarm optimization

Effect of Rapid Cold Hardening on the Cold Tolerance of the Larvae of the Rice Stem Borer,Chilo suppressalis(Walker)

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Agricultural Sciences in China 2008年第3期7卷 321-328页

作者： qiang Cheng-kui DU Yu-zhou YU Ling-ya CUI Ya-dong ZHENG Fu-shan lu Ming-xing Institute of Applied Entomology Yangzhou University Yangzhou 225009 P.R.China College of Life Sciences Fuyang Teachers College Fuyang 236032 P.R.China College of Resources and Environment South China Agricultural University Guangzhou 510642 P.R.China 不详

The effects of rapid cold hardening （RCH） on the cold tolerance of the last instar larvae of Chilo suppressalis （Walker） were evaluated for the first time. The discriminating temperature, induction, detection, duration and extent of RCH of the larvae in the laboratory were tested, and the supercooling points （SCPs） and the contents of water and lipid of the larvae after RCH treatment were determined, respectively. The results showed that the discriminating temperature of the larvae was about -21.. Mean survival rates of the larvae which exposed to either 0 or 5℃ for 2 and 4 h before exposure to the discriminating temperature for 2 h were significantly higher than those of the control groups （P 〈 0.05）. Moreover, the highest survival rate appeared in the larvae after 0℃ for 4 h treatment. The protection against low temperature gained by RCH at 0℃ for 4 h was rapidly lost on return to 28℃. Mean survival rates of RCH larvae were significantly higher than those of non-acclimated （NACC） larvae and acclimation （ACC） larvae when they were exposed to the discriminating temperature for 2 or 4 h （P〈 0.05）. Moreover, the rates of NACC, ACC, RCH and ACC ＋ RCH larvae from 2 to 6 h to the discriminating temperature resulted in a significant decline. The values of SCPs and the contents of lipid of the larvae which exposed to either 0 or 5℃ for 2 and 4 h showed no significant difference at 0.05 level compared to those of the control groups. But the contents of water in the larvae were obviously decreased. Therefore, it could be concluded that RCH could enhance cold tolerance and affect partly physiological and biochemical components of the larvae of C. suppressalis, but the underlying mechanisms needs to be further explored.

关键词： Chilo suppressalis cold tolerance rapid cold hardening supercooling point survival rate

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硅钙钡铝复合合金的生产实践

铁合金 2001年第3期32卷 1-5页

作者：吕俊杰何斌鲁宁重庆工业高等专科学校重庆400050 四川德昌铁合金厂德昌615500

介绍了碳热法冶炼 Si- Ca- Ba- Al合金的生产实践，指出 Si- Ca- Ba- Al作为高效的脱硫脱氧剂，应用前景广阔。

关键词： Si-Ca-Ba-Al合金矿热炉冶炼复合合金脱硫剂脱氧剂