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The Fine Triangle Intersections for Maximum Kite Packings

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Acta Mathematica Sinica,English Series 2013年第5期29卷 867-882页

作者： gui zhi zhang Yan Xun CHANG Tao FENG Institute of Mathematics Beijing Jiaotong University School of Mathematical Sciences Hulunbuir College

In this paper, the fine triangle intersection problem for a pair of maximum kite packings is investigated. Let Fin（v） = {（s, t）： E← a pair of maximum kite packings of order v intersecting in s blocks and s ＋ t triangles}. Let Adm（v） = {（s,t）： s ＋ t≤by, s, t are non-negative integers}, where by = [v（v - 1）/8]. It is established that Fin（v） = Adm（v）／{（bv - 1,0）, （by - 1, 1）} for any integer v - 0, 1 （rood 8） and v ≥ 8; Fin（v） = Adm（v） for any integer v = 2, 3, 4, 5, 6, 7 （rood 8） and v≥ 4.

关键词： Kite packing triangle intersection fine triangle intersection

Neoadjuvant chemotherapy of PF regimen in head and neck squamous cell carcinoma:A meta-analysis

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Neoadjuvant chemotherapy of PF regimen in head and neck squa...

A NEW METHOD FOR THE TREATMENT AND UTILIZATION OF THE WASTE GAS NOx----THE PREOXIDATION OF 2-OCTANOL BY ABSORBING NOx

海峡两岸2008口腔癌诊治与修复重建新进展研讨会

作者： SU Yu-xiong ZHENG Jia-wei ZHENG Guang-sen LIAO gui-qing zhang zhi-yuan

新辅助化疗在头颈鳞癌中的确切疗效一直以来在临床上备受争议,争论的焦点在于新辅助化疗是否能够提高肿瘤的局部控制率、降低远处转移率和提高远期生存率。国际上已有的关于头颈鳞癌新辅助化疗的随机对照试验中,报道的结论不一,缺乏强... 详细信息

新辅助化疗在头颈鳞癌中的确切疗效一直以来在临床上备受争议,争论的焦点在于新辅助化疗是否能够提高肿瘤的局部控制率、降低远处转移率和提高远期生存率。国际上已有的关于头颈鳞癌新辅助化疗的随机对照试验中,报道的结论不一,缺乏强有力的说服力,无法提供临床医师准确的决策依据。本研究对国际上正式发表的采用PF方案进行头颈鳞癌新辅助化疗的随机对照试验进行系统评价。按照系统评价标准和本研究的要求,纳入的随机对照试验共8个。Meta分析结果表明,PF方案新辅助化疗对降低头颈鳞癌的局部复发无显著疗效;但对降低远处转移率、提高远期生存率有一定效果,具有统计学意义。研究结论为临床上头颈鳞癌的综合治疗决策提供了重要的循证医学证据。

关键词： head and neck neoplasm neoadjuvant chemotherapy meta-analysis

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Chinese Chemical Letters 1991年第9期2卷 729-730页

作者： Shen Shong zhang Fu gui LU Qing zhi zhang (Department of Chemistry,Henan Normal University,Xinxiang,453002) Gen Suo ZHAO (Henan Institute of Chemistry,Chinese Academy of Sciences,Zhenzhong,450002) Guo Xiong HUA (Analytical Center,Fushun Petroleum Institute,Fushun,113001)

A new method is proposed to absorb the NOx into an organic compound,2-octanol. The absorption efficiency reaches up to 96-99%,and the NOx emission level is decreased from 1.0×10~4-3.0×10~5 to *** the absorption process,2-octanol is *** then it is further oxidized into hexanoic acid with nitric *** this way,20% of nitric acid is saved for the same yield of hexanoic acid.

关键词： THE PREOXIDATION OF 2-OCTANOL BY ABSORBING NOx GAS

Effect of Sb-doping on the morphology and dielectric properties of chrysanthemum-like ZnO nanowire clusters

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Chinese Physics B 2012年第9期21卷 520-524页

作者：闫军锋游天桂张志勇田江晓江妮赵武 School of Information Science and Technology Northwest University

Chrysanthemum-like ZnO nanowire clusters with different Sb-doping concentrations were prepared using a hy- drothermal process. The microstructures, morphologies, and dielectric properties of the as-prepared products were characterized by X-ray diffraction （XRD）, high-resolution transmission electron microscopy （HRTEM）, field emission environment scanning electron microscope （FEESEM）, and microwave vector network analyzer respectively. The results indicate that the as-prepared products are Sb-doped ZnO single crystallines with a hexagonal wurtzite structure, the flower bud saturation degree Fd is obviously different from that of the pure ZnO nanowire clusters, the good dielectric loss property is found in Sb-doped ZnO products with low density, and the dielectric loss tangent tanSe increases with the increase of the Sb-doping concentration in a certain concentration range.

关键词： chrysanthemum-like ZnO nanowire clusters dielectric properties hydrothermal method Sb doping

The Morphology of Inorganic Particles Controlled by Poly(ethylene glycol) Acrylate-(methacrylic acid) Copolymer

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The Morphology of Inorganic Particles Controlled by Poly(eth...

佳木斯纺织厂女工中阴道毛滴虫感染情况的调查

2003年纳米和表面科学与技术全国会议

作者： Wang Fang, Xu gui-Ying, zhang zhi-Qing (Key Laboratory for Colloid and Interface Chemistry of Education Ministry, Shandong University, Jinan 250100)

A new double-hydrophilic copolymer poly(ethylene glycol) acrylate -poly(methacrylic acid)(PEGA-PMAA schemel.) was synthesized and was used to control the morphology of CaCO3 and BaHPO4. The morphology of CaCO3 particles varies in presence of two different polymers(PEGA and PEGA-PMAA). We find the size of flake-like CaCO3 particle controlled by PEGA is smaller than in water. However, the size of CaCO3 particle controlled by Double-hydrophilic copolymer PEGA-PMAA is much larger. Specially, the flower shape calcite with large length about 7μm is very interesting. This indicates that PEGA prevent the growth of CaCO3 particle, while PEGA-PMAA promote the growth of CaCO3 particle.

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黑龙江医药科学 1984年第4期 18-20页

作者：温桂芝朱丽贤张瑞芝孙桂芝佳木斯医学院寄生虫学教研室佳木斯医学院妇产科教研室佳纺医院妇科

滴虫性阴道炎是妇女的一种常见病、多发病,在我国流行广泛,据报五十年代各地感染率在20—30%左右,而女工集中的工厂尤为多见,对妇女健康影响较大。经过三个医院妇产科的初步统计,发现我区阴道滴虫感染有上升的趋势,为进一步了解此情况,... 详细信息

滴虫性阴道炎是妇女的一种常见病、多发病,在我国流行广泛,据报五十年代各地感染率在20—30%左右,而女工集中的工厂尤为多见,对妇女健康影响较大。经过三个医院妇产科的初步统计,发现我区阴道滴虫感染有上升的趋势,为进一步了解此情况,于1983年10—12月间,对佳木斯纺织厂女工的阴道滴虫感染情况进行了调查,现将结果报告如下:一、调查方法

关键词：阴道毛滴虫阴道滴虫感染悬滴法消毒棉签五十年代复发率流行因素调查方法医务部门普查普治

Real-world evidence on the efficacy and safety of vonoprazanamoxicillin dual therapy for Helicobacter pylori treatment in elderly patients

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World Journal of Gastroenterology 2025年第1期31卷 68-78页

作者： Wen Gao Jing-Wen Li Hui Ye Xue-zhi zhang Jian-Xiang Liu Hong Cheng Department of Gastroenterology Peking University First HospitalBeijing 100034China School of Medicine Tsinghua MedicineTsinghua UniversityBeijing 100034China Department of Traditional Chinese Medicine and Integrative Medicine Peking University First HospitalBeijing 100034China

BACKGROUND A dual therapy regimen containing amoxicillin is a common treatment option for the eradication of Helicobacter pylori(***).While substantial research supports the efficacy and safety of vonoprazan and amoxicillin(VA)dual therapy in the general population,there is still a lack of studies specifically focusing on its safety in elderly *** To evaluate efficacy and safety of VA dual therapy as first-line or rescue treatment for *** in elderly *** As a real-world retrospective study,data were collected from elderly patients aged 60 years and above who accepted VA dual therapy(vonoprazan 20 mg twice daily+amoxicillin 1000 mg thrice daily for 14 days)for *** eradication in the Department of Gastroenterology at Peking University First Hospital between June 2020 and January *** status was evaluated by^(13)C-urease breath test 6 weeks after *** adverse events(AEs)during treatment were *** In total,401 cases were ***-one cases were excluded due to loss to follow-up,lack of re-examination,or unwillingness to take *** total of 380 included cases comprised 250 who received VA dual therapy as first-line treatment and 130 who received VA dual therapy as rescue *** was successfully eradicated in 239 cases(95.6%)in the first-line treatment group and 116 cases(89.2%)in the rescue treatment *** overall incidence of AEs was 9.5%for both ***,9.2%of patients experienced an AE in the first-line treatment group and 10.0%in the rescue treatment *** patients discontinued treatment due to AE,with a discontinuation rate of 1.3%.No serious AE *** The VA dual therapy regimen as a first-line treatment and a rescue therapy was effective and safe for elderly patients aged 60 and older.

关键词： Helicobacter pylori Vonoprazan Amoxicillin Dual therapy Elderly

薄芝注射液治疗运动神经元疾病和进行性肌营养不良症

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新药与临床 1991年第3期10卷 147-149页

作者：徐桂芝张玉林姚景莉上海医科大学神经病学研究所上海200040

采用薄芝注射液治疗28例运动神经元病和9例进行性肌营养不良症患者。每日0.5g或隔日1g im,疗程1-3mo。治疗后,前者28例中11例(39％)显效,12例(43％)有效,5例晚期患者无效。后者9例中2例显效,6例有效,1例无效。值得临床试用。

关键词：神经肌肉疾病薄树芝肌营养障碍

A mechanical reinforced and antifreezing polyacrylate hydrogel electrolyte for high-performance zinc-ion batteries

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Nano Research 2025年第1期18卷 341-350页

作者： Zili zhang Ruolin Wang Hongfei Lu Di zhang Yu Zhao Jing Xu Bin Sun zhi-Min Dang Yang Jin School of Electrical and Information Engineering Zheng Zhou UniversityZhengzhou 450001China State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

The operation of aqueous zinc-ion batteries in flexible energy storage field is plagued by the uncontrollable growth of Zn-dendrite and inevitable freeze of water below 0 ℃.Therefore,it is necessary to design a hydrogel electrolyte with good mechanical property and freezing resistance to uniform the Zn-deposition and resist flexibility loss at low *** find that the mechanical property(strength and toughness)of hydrogel electrolyte has a significant impact on the suppression of dendrite growth and the uniform deposition of zinc ***,a polyacrylate hydrogel is prepared in one step by ultraviolet(UV)curing method with Zn(CF_(3)SO_(3))_(2)salt and polyvinyl alcohol(PVA)addition to increase the antifreezing ability and mechanical *** adsorption of water molecules by 2-hydroxyethyl acrylate(HEA)and PVA reduces the freezing point of the hydrogel,which is beneficial for enhancing the electrochemical stability at low *** this basis,the Zn-symmetrical battery with hydrogel electrolyte has a long lifespan of 4710 h at 0.5 mA·cm^(-2)and 0.5 mAh·cm^(-2)at room ***,the hydrogel electrolyte exhibits an outstanding stability at low temperature of^(-2)0 ℃,the lifespan of symmetrical battery reaches to 4000 h at 0.5 mA·cm^(-2)and 0.5 mAh·cm^(-2).The assembled full cell with NaV3O8·1.5H_(2)O(NVO)cathode and hydrogel electrolyte possesses a high capacity retention ratio of 77%after 10,000 cycles at^(-2)0 ℃.The flexible cell can power light-emitting diode(LED)lamp under bending,warping and cutting without liquid leakage and an electronic watch at the operating temperature of^(-2)0 ℃.

关键词： zinc ion battery hydrogel electrolyte mechanical enhancement freezing resistance