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Covering corneal stromal lenticule for macular hole in pathological myopia

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International Journal of Ophthalmology(English edition) 2024年第9期17卷 1675-1680页

作者： Zi-Yan Tang Gang Qiao Xiao-Juan Zhang Li-Jun Xie Qiang-Xing Zou Chun-Mei He Long Zhao Hua-Qing Yang Yu Quan kui cao Hui Jiang Yu-Kun He Wanjiang Eye Hospital of Mianyang Mianyang 621000Sichuan ProvinceChina

AIM:To evaluate the clinical effect of a new surgery technique(covering corneal stromal lenticule,CSL)for macular hole(MH)in pathological ***:This was a prospective non-randomized series case *** eyes of 14 patients whose axial length were more than 29 mm and suffered from MH and macular hole retinal detachment(MHRD)were included in this *** cases were treated with 25-gauge pars plana vitrectomy(PPV)with internal limiting membrane(ILM)peeling,covering CSL and C_(3)F_(8) gas *** cases were followed for 6mo,and the best-corrected visual acuity(BCVA),healing status of MH,the reattached rate of retinal detachment(RD),and reoperation rate were ***:All cases were successfully performed the surgery and the postoperative follow-up was *** surgery,MHs were healed in all 14 eyes(100%,14/14)after assessed by optical coherence *** reattachment of retina was achieved in all 6 eyes(100%,6/6)with *** was improved in 12 eyes(85.71%,12/14),and had no significant change in 2 eyes(14.29%,2/14).The overall mean BCVA was improved from 1.80±0.77 to 0.82±0.46 logMAR(F=10.46,P<0.01).No serious complications occurred in all ***:The new surgery technique(covering CSL)has high reattached rate of RD and high healing rate of MH in pathological myopia in the preliminary *** it can effectively improve the visual function of *** new technique offers meaningful new ideas for treating refractory MH in pathological myopia.

关键词： corneal stromal lenticule macular hole pathological myopia

SYNTHESIS OF CROSS-CONJUGATED(p-PHENYLENE)S-POLY(p-PHENYLENEVINYLENE)S HYBRIDS WITH LOW CONTENT OF STRUCTURAL DEFECTS

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Chinese Journal of Polymer Science 2007年第2期25卷 171-179页

作者： Shi-jun Zheng Qun Xu Shao-kui cao College of the Material Science and Engineertng Zhengzhou University Zhengzhou 450052 China

The novel shish-kebab-type liquid crystalline cross-conjugated （p-phenylene）s-poly（p-phenylenevinylene）s hybrid was synthesized through Gilch polymerization. Their structures and properties were characterized by NMR, GPC, DSC, X-ray diffraction and polarizing optical microscope （POM）. ^1H-NMR investigation of the polymers indicates that the shish-kebab-structure has a strong ability to suppress the structural defects in the polymers. The polymers are enantiotropic liquid crystals. The melting point （Tm） of the polymers decreases when the length of the alkoxy tails of the mesogenic units increases. The mesophase was identified by X-ray diffraction method. They showed not only a smectic LC phase, but also a strong green fluorescence in chloroform. The maximum absorption band of the ＂kebabs＂ of the two, 5-bis（4＇- alkoxyphenyl）benzene at 280 nm did not appear in absorption spectra of the polymers. The same phenomena were also observed in the fluorescence spectra. These results imply that the polymers have formed a cross-conjugated uniform structure and achieved an extended n-conjugation polymer.

关键词： Gilch polymerization Conjugated polymer Liquid crystal Shish-kebab Fluorescence.

Comparative study of bacterial status from conjunctival sac of the elder Qiang minority and Han people with dry eye in Sichuan,China

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International Journal of Ophthalmology(English edition) 2012年第3期5卷 343-347页

作者： Yue Zhang, kui cao Department of Ophthalmology Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital Chengdu 610072 Sichuan Province China Mianyang Wanjiang Ophthalmologic Hospital Mianyang 621000 Sichuan Province China Department of Clinical Laboratory Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital Chengdu 610072 Sichuan Province China Hospital of Traditional Chinese Medclicine Affiliated to Luzhou Medical College Luzhou 646000 Sichuan ProvinceChina The Fourth People's Hospital of Zigong City. Zigong 643000 Sichuan Province China

AIM: To compare the status of bacteria in the conjunctival sac from the elder Qiang minority and Han people with dry eyes in Sichuan, China. METHODS: Total of 54 elder Qiang people with dry eyes (108 eyes) were examined by cluster sampling. In the similar habitation region of Han people, 80 (160 dry eyes) Han people were analyzed as the control group. The bacteria was separated from the inferior palpebral conjunctiva, then inoculated on blood plate for 48 hours and identified. RESULTS: Totally 24 strains of bacteria were cultured in either Qiang minority or Han c populations with 3 strains of them existed in both ethnic groups. The commonest bacteria in conjunctival sac in two ethnic groups were non-pathogenic bacterium. The composition of Corynebacterium in Han people (54.1%) was significantly higher than that in Qiang minority (27.4%) (chi(2)=11.6721, P=0.0006). The percentage of Sphingomonas Paucimobilis in Qiang people was higher than that in Han people (chi(2)=18.6442, P=0.0000). However, there was no significant difference between Qiang minority and Han people either in bacterial positive rate in conjunctival sac, or the composition of bacteria species and strains, or the composition of staphylococcus epidemids between two ethnic populations. CONCLUSION:There was no significant difference of bacterial positive rate in conjunctival sac from the elder of Qiang minority and Han people with dry eye, but the species of bacteria were different.

关键词： conjunctival sac bacteria dry eye

Integrating Color and Spatial Feature for Content-Based Image Retrieval

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Wuhan University Journal of Natural Sciences 2002年第3期7卷 290-296页

作者： cao kui Feng Yu-cai Sch. of Comp. Sci. and Technol. Huazhong Univ. of Sci. and Technol. Wuhan 430074 China

In this paper, we present a novel and efficient scheme for extracting, indexing and retrieving color images. Our motivation was to reduce the space overhead of partition-based approaches taking advantage of the fact that only a relatively low number of distinct values of a particular visual feature is present in most images. To extract color feature and build indices into our image database we take into consideration factors such as human color perception and perceptual range, and the image is partitioned into a set of regions by using a simple classifying scheme. The compact color feature vector and the spatial color histogram, which are extracted from the seqmented image region, are used for representing the color and spatial information in the image. We have also developed the region-based distance measures to compare the similarity of two images. Extensive tests on a large image collection were conducted to demonstrate the effectiveness of the proposed approach.

关键词： color distribution spatial color histogram region-based image representation and retrieval similarity matching integrating of single features

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情势变更制度在建设工程合同中的推定和思考

吉林水利 2024年第4期 66-68,78页

作者：曹逵张紫湜王冠中国港湾工程有限责任公司北京100027 中国南水北调集团东线有限公司北京100070

情势变更制度作为契约严守原则的补充,若理解和使用不当在很大程度上会引发建设工程施工合同双方的巨大争议。考虑到建设工程施工合同具有多样性,相关方在合同拟定和执行的过程中经常对不可抗力事件、不可预见等因素存在认知偏差,且缺... 详细信息

情势变更制度作为契约严守原则的补充,若理解和使用不当在很大程度上会引发建设工程施工合同双方的巨大争议。考虑到建设工程施工合同具有多样性,相关方在合同拟定和执行的过程中经常对不可抗力事件、不可预见等因素存在认知偏差,且缺乏合同索赔条款等情况,导致建设工程施工合同中的受损失方更加主动地寻求情势变更制度下的补偿和救济措施。因此,基于国内对于情势变更制度的发展和相关法规,对易淆点进行分类讨论,进一步分析情势变更制度在我国法律中的适用性和可行性,在合理保护受损失方权益和公平原则下,实现合同存续的目的。

关键词：建设工程合同管理情势变更不可抗力商业风险

A parallel and scalable digital architecture for training support vector machines

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Journal of Zhejiang University-Science C(Computers and Electronics) 2010年第8期11卷 620-628页

作者： kui-kang cao Hai-bin SHEN Hua-feng CHEN Institute of VLSI Design Zhejiang University Hangzhou 310027 China Zhejiang University of Media and Communications Hangzhou 310027 China

To facilitate the application of support vector machines (SVMs) in embedded systems,we propose and test a parallel and scalable digital architecture based on the sequential minimal optimization (SMO) algorithm for training *** taking advantage of the mature and popular SMO algorithm,the numerical instability issues that may exist in traditional numerical algorithms are *** error cache updating task,which dominates the computation time of the algorithm,is mapped into multiple processing units working in *** results show that using the proposed architecture,SVM training problems can be solved effectively with inexpensive fixed-point arithmetic and good scalability can be *** architecture overcomes the drawbacks of the previously proposed SVM hardware that lacks the necessary flexibility for embedded applications,and thus is more suitable for embedded use,where scalability is an important concern.

关键词： Support vector machine (SVM) Sequential minimal optimization (SMO) Field-programmable gate array (FPGA) Scalable architecture

Effects of sulfur addition methods and Ca-Si treatment on the microstructure and properties of 30MnVS

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International Journal of Minerals,Metallurgy and Materials 2009年第6期16卷 650-653页

作者： Guo-zhong Li Fu-ming Wang Rong Hui Wen-kui cao School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 100083 China Jiangyin Xingcheng Special Steel Co. Ltd. Jiangyin 214400 China

The effects of sulfur addition methods and Ca-Si treatment on the microstructure and properties of free-cutting non-quenched and tempered steel 30MnVS were investigated by using optical microscopy, SEM and tensile test methods. The results show that sulfur addition methods influence the morphology of sulfides and the properties of 30MnVS slightly. Ca-Si treatment is beneficial for the formation of complex sulfides which normally have oxide cores, therefore, improving the distribution of sulfides in the tested steel and enhancing its toughness. The two methods, pyrite addition during LF process and S wire feeding during VD process, slightly influence the morphology and distribution of sulfides and the properties of 30MnVS; Ca addition not only promotes the nucleation of sulfides on the cores of calcium aluminate inclusions, but also creates modification effect on MnS, reducing the relative plasticity and hot deformability of sulfides during hot rolling process, thereby reducing the length/width value of sulfides and improving their distribution, and significantly enhancing its mechanical properties, in particular, the impact toughness increased by 30%.

关键词： free-cutting steel sulfur addition modification sulfide mechanical properties microstructure

Changes in thyroid function in patients with liver failure and their clinical significance:A clinical study of non-thyroidal illness syndrome in patients with liver failure

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Hepatobiliary & Pancreatic Diseases International 2020年第6期19卷 561-566页

作者： Hong-Ling Feng Qian Li Wu-kui cao Ji-Ming Yang Intensive Care Unit Tianjin Second People’s HospitalTianjin 300192China

Background:Non-thyroidal illness syndrome(NTIS)develops in a large proportion of critically ill patients and is associated with high risk for *** aimed to investigate the correlation between NTIS and liver failure,and the short-term mortality of patients with these ***:The clinical data of 87 patients with liver failure were collected retrospectively,73 of them were randomly selected for an observational study and to establish prognostic models,and 14 for model *** 73 sex-and age-matched patients with mild chronic hepatitis were randomly selected as a control *** free triiodothyronine(FT3),free thyroxine(FT4),and thyroid-stimulating hormone(TSH)were *** clinical characteristics of patients with liver failure and NTIS were *** follow-up of patients lasted for 3 ***,the values for predicting short-term mortality of model for end-stage liver disease(MELD),Child-Turcotte-Pugh(CTP),chronic liver failure-sequential organ failure assessment(CLIF-SOFA)scores,FT3-MELD model,and FT3 were ***:The observation group had significantly lower FT3(2.79±0.71 vs.4.43±0.75 pmol/L,P<0.001)and TSH[0.618(0.186-1.185)vs.1.800(1.570-2.590)mIU/L,P<0.001],and higher FT4(19.51±6.26 vs.14.47±2.19 pmol/L,P<0.001)than the control *** was diagnosed in 49 of the patients with liver failure(67.12%).In the observation group,patients with NTIS had a higher mortality rate than those without(63.27%vs.25.00%,P=0.002).Across the whole cohort,the 3-month mortality was 50.68%.The international normalized ratios(INR)were 2.40±1.41 in survivors and 3.53±1.81 in deaths(P=0.004),the creatinine(Cr)concentrations were 73.27±36.94μmol/L and 117.08±87.98μmol/L(P=0.008),the FT3 concentrations were 3.13±0.59 pmol/L and 2.47±0.68 pmol/L(P<0.001),the MELD scores were 22.19±6.64 and 29.57±7.99(P<0.001),the CTP scores were 10.67±1.53 and 11.78±1.25(P=0.001),and the CLIF-SOFA scores were 8.42±1.68 and 10.16±2.03(P<0.001),resp

关键词： Liver failure Non-thyroidal illness syndrome Free triiodothyronine Prognosis

我国户外运动产业高质量发展动力机制与推进路径——基于人地关系协调视角

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四川旅游学院学报 2024年第3期 77-81页

作者：曹奎张骞张宜爽余文军广西民族大学广西南宁530006

在人地关系协调视角下,运用文献资料法等研究方法,对我国户外运动产业的高质量发展动力机制和推进路径进行了探究。研究表明,政府推动、人才拉动、资源促动和企业带动是我国户外运动产业高质量发展的主要动力机制。此外,我们还从坚持政... 详细信息

在人地关系协调视角下,运用文献资料法等研究方法,对我国户外运动产业的高质量发展动力机制和推进路径进行了探究。研究表明,政府推动、人才拉动、资源促动和企业带动是我国户外运动产业高质量发展的主要动力机制。此外,我们还从坚持政府导向、扶优扶强户外运动行业组织、构建高水平户外运动人才培养体系、推进生态与文化协调发展、驱动绿色经济增长和助力企业数字化转型、创新户外运动产品与服务等角度,提出了我国户外运动产业高质量发展的推进路径,以期加快推进我国户外运动产业成为国民经济支柱性产业的进程,实现我国户外运动产业高质量可持续发展目标。

关键词：户外运动产业高质量发展动力机制人地关系协调