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Chinese Science Bulletin 2011年第3期56卷 253-256页

作者： XI DangPeng WAN XiaoQiao FENG ZhiQiang LI Shun FENG ZiHui JIA JianZhong JING Xia si weimin School of Earth Science and Resources China University of Geosciences (Beijing) Beijing 100083 China Exploration and Development Research Institute of Daqing Oil Field Company Daqing 163712 China

The Songliao Basin is the largest oil-bearing basin in *** the absence of sufficient evidence,the possibility of seawater incursion(s) into the Songliao Basin remains ***,we discovered relatively abundant foraminifera fossils from units 1 and 2 of the Nenjiang Formation of borehole *** foraminifera (Gavlinella sp.,Anomalinoides sp.,Pullenia sp.,Haplophragmoides sp.,Karrorulina hokkaidoana,Clavulinoides sp.),as well as planktonic foraminifera (Archaeoglobigerina blowi,Archaeoglobigerina cretacea and Hedbergella flandrini),were *** fossils were widely distributed in the marine *** to the global distribution of the above-mentioned planktonic foraminifera,the age of these fossil bearing strata appears to be Late Coniacian to *** importantly,these foraminifera provide direct evidence for marine water incursions into the Songliao Basin during deposition of the Lower Nenjiang Formation.

关键词：有孔虫化石松辽盆地海水入侵晚白垩世证据水库浮游有孔虫底栖有孔虫

硫酸亚铁和硫酸锰对苍白杆菌产生物表面活性剂的影响

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中国酿造 2019年第12期38卷 20-24页

作者：刘记成司伟民孙玉梅大连工业大学生物工程学院

针对一般生物表面活性剂产生菌产量低、生产成本高的问题,研究了FeSO4和MnSO4对苍白杆菌(Ochrobactrum sp.)发酵产生物表面活性剂的影响,考察在30℃、160 r/min摇床发酵过程中细胞浓度、pH值、糖浓度以及谷氨酰胺合成酶和谷草转氨酶活... 详细信息

针对一般生物表面活性剂产生菌产量低、生产成本高的问题,研究了FeSO4和MnSO4对苍白杆菌(Ochrobactrum sp.)发酵产生物表面活性剂的影响,考察在30℃、160 r/min摇床发酵过程中细胞浓度、pH值、糖浓度以及谷氨酰胺合成酶和谷草转氨酶活性等重要参数的变化。结果表明,在蔗糖10 g/L、磷酸氢钾3.4 g/L、磷酸氢钠1.5 g/L、硝酸钠4.0 g/L和酵母浸粉0.2 g/L的培养基中,添加0.4 mmol/L FeSO4可提高谷草转氨酶活性并加快生物表面活性剂积累,产量(1.75 mg/L)提高了7.5倍;添加0.3 mmol/L MnSO4可提高谷氨酰胺合成酶活性,使生物表面活性剂产量(2.21 mg/L)提高8.6倍。

关键词：生物表面活性剂苍白杆菌 FeSO4 MnSO4

Effects of Diamond on the Mechanical Properties and Thermal Conductivity of si_(3)N_(4)Composites Fabricated Using Spark Plasma sintering

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Journal of Wuhan University of Technology(Materials Science) 2024年第5期39卷 1319-1324页

作者： GAO Ying LIU Di WANG Aiyang ZHANG Song HE Qianglong REN Shifeng FANG Jie WANG Zihan WANG weimin State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Jingdezhen Huaxun Special Ceramics Co.ltd. Jingdezhen 333000China Aerospace Science&Industry Defense Technology Research and Test Center Beijing 100854China

Micrometer-sized diamonds were incorporated into silicon nitride(si_(3)N_(4))matrix to manufacture high-performance si_(3)N_(4)-based composites using spark plasma sintering at 1500℃under 50 *** effects of the diamond content on the phase composition,microstructure,mechanical properties and thermal conductivity of the composites were *** results showed that the addition of diamond could effectively improve the hardness of the *** thermal conductivity of si_(3)N_(4)increased to 52.97 W/m·k at the maximum with the addition of 15 wt%diamond,which was 27.5%higher than that of the monolithic si_(3)N_(4).At this point,the fracture toughness was 7.54 MPa·m^(1/2).Due to the addition of diamond,the composite material generated a new substance,MgsiN2,which effectively combined si_(3)N_(4)with ***2 might improve the hardness and thermal conductivity of the materials.

关键词： spark plasma sintering si_(3)N_(4) diamond thermal conductivity mechanical properties

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街区空间使用后评估的框架与逻辑

建筑学报 2024年第2期 36-42页

作者：司桂恒庄惟敏梁思思清华大学建筑学院北京100084 清华大学建筑设计研究院有限公司北京100084

聚焦于街区评估指标体系背后的结构与逻辑,基于多指标综合评价理论,对中外前沿的街区评估文献进行整合,总结街区评估的特点,初步重构评估框架,并通过实例验证,提出未来街区评估指标体系的研究方向,为城市设计提供合理前馈,并促进后评估... 详细信息

聚焦于街区评估指标体系背后的结构与逻辑,基于多指标综合评价理论,对中外前沿的街区评估文献进行整合,总结街区评估的特点,初步重构评估框架,并通过实例验证,提出未来街区评估指标体系的研究方向,为城市设计提供合理前馈,并促进后评估与前策划在街区尺度上形成正向反馈闭环。

关键词：街区使用后评估 POE 指标体系评估逻辑

松辽盆地东部宾县凹陷青山口组介形类生物地层与生态环境

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地质学报 2010年第10期84卷 1389-1400页

作者：司伟民席党鹏黄清华万晓樵中国地质大学北京100083 大庆油田有限责任公司勘探开发研究院黑龙江大庆163712

实测松辽盆地东部宾县地区鸟河畔的两条剖面。鸟河剖面上下岩性变化较小,以灰绿色泥岩、泥质粉砂岩为主,含数层黄铁矿薄层及介形虫灰岩薄层。红石山剖面岩性岩相变化较大,下部为灰绿色,黄绿色泥岩,上部出现大套红层。通过介形类组合特征... 详细信息

实测松辽盆地东部宾县地区鸟河畔的两条剖面。鸟河剖面上下岩性变化较小,以灰绿色泥岩、泥质粉砂岩为主,含数层黄铁矿薄层及介形虫灰岩薄层。红石山剖面岩性岩相变化较大,下部为灰绿色,黄绿色泥岩,上部出现大套红层。通过介形类组合特征,判断出这两个剖面属于青山口期沉积。其中,鸟河剖面对应青山口组一段上部,含介形类Triangulicypris torsuosus-Triangulicypris ***组合带。红石山剖面属于青山口组二段下部,含介形类Cypridea dekhoinensis-Li mnocyrpridea copiosa组合带;及叶肢介Nenestheria sp.、Cratostracus sp.、Dictyestheia sp.,化石富集成层。通过介形类古生态分析,松辽盆地宾东地区在青一段沉积时期为浅湖环境,湖水约为半咸水至微咸水。介形类的属种单调,但优势种Triangulicypris torsuosus极为繁盛。青二段沉积时期为滨浅湖环境,湖水盐度较青一段沉积时期降低,为淡水或微咸水。生物组成以腹足、轮藻、叶肢介以及带瘤介形类的出现为特征。宾县地区在青山口组沉积时期生物具有与松辽盆地其他地区相同的化石面貌和古生态特征。其一致性表明该时期宾县地区同属于松辽盆地。青一段至青二、三段之间微体化石古生态特征发生转变,暗示松辽盆地水体条件在该沉积阶段的演变。

关键词：松辽盆地白垩纪宾县坳陷青山口组介形类古湖泊

糖碳源和氨基酸氮源对苍白杆菌属发酵产生物表面活性剂的影响

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中国酿造 2021年第12期40卷 115-119页

作者：陈西朋司伟民孙玉梅李宪臻大连工业大学生物工程学院辽宁大连116034

该实验为优化苍白杆菌(Ochrobactrum sp.)产生物表面活性剂的发酵条件,比较了不同糖碳源(蔗糖、乳糖、甘油、木糖、果糖)、氨基酸氮源(谷氨酸、天冬氨酸、赖氨酸、精氨酸和缬氨酸)、碳氮比(C/N)(1、10、20、30、40)对生物表面活性剂发... 详细信息

该实验为优化苍白杆菌(Ochrobactrum sp.)产生物表面活性剂的发酵条件,比较了不同糖碳源(蔗糖、乳糖、甘油、木糖、果糖)、氨基酸氮源(谷氨酸、天冬氨酸、赖氨酸、精氨酸和缬氨酸)、碳氮比(C/N)(1、10、20、30、40)对生物表面活性剂发酵的影响。结果表明,最优碳源为蔗糖,发酵5 d达最大乳化活性56.30%;最优氮源为天冬氨酸,发酵4 d达最大乳化活性54.00%;最优C/N为10,发酵4 d达最大乳化活性55.75%。

关键词：苍白杆菌生物表面活性剂糖碳源氨基酸氮源碳氮比

Study on blood pressure rhythm in hypertensive patients with Yin deficiency syndrome and a random forest model for predicting hypertension with Yin deficiency syndrome

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Journal of Traditional Chinese Medicine 2024年第3期44卷 564-571页

作者： ZHOU Ying LI Ping LUAN Jianwei SHEN Rui WU Yinglan XU Qiwen WANG Xinyue ZHU Yao XU Xiangru LIU Zitian JIANG Yuning ZHONG Yong HE Yun JIANG weimin Department of Cardiology the Affiliated Hospital of Nanjing University of Chinese MedicineJiangsu Province Hospital of Traditional Chinese MedicineNanjing 210029China Department of Health Management Centre Jinling HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjing 210002China Emergency Department Longhua HospitalShanghai University of Traditional Chinese MedicineShanghai 200032China Department of General Internal Medicine the Affiliated Hospital of Nanjing University of Chinese MedicineJiangsu Province Hospital of Traditional Chinese MedicineNanjing 210029China

OBJECTIVE: To investigate blood pressure rhythm(BPR)in Yin deficiency syndrome of hypertension(YDSH)patients and develop a random forest model for predicting ***: Our study was consistent with technical processes and specification for developing guidelines of Evidence-based Chinese medicine clinical practice(T/CACM 1032-2017). We enrolled 234 patients who had been diagnosed with primary hypertension without antihypertensive medications prior to the enrollment. All participants were divided into Yin deficiency group(YX, n = 74) and non-Yin deficiency group(NYX, n = 160).Participants were professionally grouped by three experienced chief Traditional Chinese Medicine(TCM)physicians according to four examinations(i.e.,inspection, listening and smelling, inquiry and palpation).We collected data on 24 h ambulatory blood pressure monitoring(ABPM) and YDSH rating scale. We divided 24 h of a day into 12 two-hour periods [Chen-Shi(7:00-9:00), si-Shi(9:00-11:00), Wu-Shi(11:00-13:00), Wei-Shi(13:00-15:00), Shen-Shi(15:00-17:00), You-Shi(17:00-19:00), Xu-Shi(19:00-21:00), Hai-Shi(21:00-23:00), ZiShi(23:00-1:00), Chou-Shi(1:00-3:00), Yin-Shi(3:00-5:00), Mao-Shi(5:00-7:00)] according to the theory of “midnight-midday ebb flow”. We used random forest to build the diagnostic model of YDSH, with whether it was Yin deficiency syndrome as the outcome. RESULTS: Compared with NYX group, YX group had more female participants with older age, lower waist circumference, body mass index(BMI), diastolic blood pressure(DBP), and smoking and drinking rate(all P significantly higher than NYX group [13.0(8.0-22.0)](P sion in YX group was higher t

关键词： hypertension Yin deficiency syndrome random forest blood pressure rhythm blood pressure variability

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Ⅲ-Ⅴ族化合物半导体量子阱光调制器

通信学报 1992年第4期13卷 55-64页

作者：司伟民李德杰王健华彭吉虎张克潜清华大学集成光电子学国家重点实验室北京100084

利用Ⅲ-V族化合物半导体量子阱材料的量子限制Stark效应制作的电吸收型光调制器具有调制电压低,调制速度快、器件尺寸小、结构简单并易于同半导体激光器集成等优点,适于进行高性能、高速度的信息编码和处理,在光通信、光计算和光互联中... 详细信息

利用Ⅲ-V族化合物半导体量子阱材料的量子限制Stark效应制作的电吸收型光调制器具有调制电压低,调制速度快、器件尺寸小、结构简单并易于同半导体激光器集成等优点,适于进行高性能、高速度的信息编码和处理,在光通信、光计算和光互联中具有广泛的应用前景。本文以光通信为主要应用背景,论述了量子阱调制器的开关比和调制电压、插入损耗、调制带宽、频率啁啾等各项技术指标,指出了量子阱调制器存在的工作波长范围窄和饱和吸收等主要问题并讨论了可能的解决途径,最后讨论了量子阱调制器在光电子集成,主要是半导体激光器和量子阱调制器单片集成方面的应用、发展情况和存在问题。

关键词：半导体量子阱光调制器

Prevalence and risk evaluation of cardiovascular disease in the newly diagnosed prostate cancer population in China:A nationwide,multi-center,population-based cross-sectional study

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Chinese Medical Journal 2024年第11期137卷 1324-1331页

作者： Weiyu Zhang Huixin Liu Ming Liu Shi Ying Renbin Yuan Hao Zeng Zhenting Zhang Sujun Han Zhannan si Bin Hu simeng Wen Pengcheng Xu weimin Yu Hui Chen Liang Wang Zhitao Lin Tao Dai Yunzhi Lin Tao Xu Department of Urology Peking University People’s HospitalBeijing 100044China Department of Clinical Epidemiology and Biostatistics Peking University People’s HospitalBeijing 100044China Department of Urology Beijing HospitalNational Center of GerontologyBeijing 100005China Institute of Geriatric Medicine Chinese Academy of Medical SciencesBeijing 100005China Department of Urology Wuhan Union HospitalHuazhong University of Science&TechnologyWuhanHubei 430022China Department of Urology The Third People’s Hospital of ChengduChengduSichuan 610014China Department of Urology West China Hospital of Sichuan UniversityChengduSichuan 610041China Department of Urologic Oncology Tianjin Medical University Cancer Institute&HospitalTianjin 300060China Department of Urology Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China National Cancer Center Beijing 100021China National Clinical Research Center for Cancer Beijing 100021China Department of Urology Liaoning Cancer HospitalShenyangLiaoning 110801China Department of Urology The Second Hospital of Tianjin Medical UniversityTianjin 300141China Tianjin Institute of Urology Tianjin Medical UniversityTianjin 300141China Department of Urology Lu’an Affiliated Hospital of Anhui Medical UniversityLu’anAnhui 237322China Department of Urology Renmin Hospital of Wuhan UniversityWuhanHubei 430060China Department of Urology Harbin Medical University Affiliated Cancer HospitalHarbinHeilongjiang 150081China Department of Urology The Second Hospital of Dalian Medical UniversityDalianLiaoning 116023China Department of Urology Surgery Fujian Cancer HospitalFuzhouFujian 350014China Department of Urology Surgery Hunan Cancer HospitalChangshaHunan 410031China Department of Urology Surgery The First Affiliated Hospital of Fujian Medical UniversityFuzhouFujian 350004China

Background:Cardiovascular disease(CVD)has emerged as the leading cause of death from prostate cancer(PCa)in recent decades,bringing a great disease burden *** with preexisting CVD have an increased risk for major adverse cardiovascular events when treated with androgen deprivation therapy(ADT).The present study aimed to explore the prevalence and risk evaluation of CVD among people with newly diagnosed PCa in ***:Clinical data of newly diagnosed PCa patients were retrospectively collected from 34 centers in China from 2010 to 2022 through convenience *** was defined as myocardial infarction,arrhythmia,heart failure,stroke,ischemic heart disease,and *** risk was estimated by calculating Framingham risk scores(FRS).Patients were accordingly divided into low-,medium-,and high-risk groups.χ2 or Fisher’s exact test was used for comparison of categorical ***:A total of 4253 patients were enrolled in the present study.A total of 27.0%(1147/4253)of patients had comorbid PCa and CVD,and 7.2%(307/4253)had two or more *** enrolled population was distributed in six regions of China,and approximately 71.0%(3019/4253)of patients lived in urban *** imaging and pathological evaluation,most PCa patients were diagnosed at an advanced stage,with 20.5%(871/4253)locally progressing and 20.5%(871/4253)showing *** of them initiated prostatectomy(46.6%,1983/4253)or regimens involving ADT therapy(45.7%,1944/4253)for prostate *** the present PCa cohort,43.1%(1832/4253)of patients had hypertension,and half of them had poorly controlled blood *** FRS stratification,as expected,a higher risk of CVD was related to aging and metabolic ***,we also found that patients with treatment involving ADT presented an originally higher risk of CVD than those without *** was in accordance with clinical practice,i.e.,aged patients or patients at advanced oncological stages were inclined to accept sys

关键词： Prostate cancer Castration Cardiovascular disease Prevalence Cardiovascular risk

中国开放街区的困境与破局对策--基于居民感知敏感度评估

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城市学报 2024年第1期 8-15页

作者：司桂恒庄惟敏清华大学建筑学院中国工程院清华大学建筑设计研究院有限公司

作为对封闭小区带来的城市问题的反思,开放街区近年来成为我国城市可持续发展的战略之一,然而政策自提出以来争议不断,其推行也缺乏成效。既往研究多站在理论层面剖析设计策略或分析利弊,但实际使用者的反馈却被忽视,而开放政策会触及... 详细信息

作为对封闭小区带来的城市问题的反思,开放街区近年来成为我国城市可持续发展的战略之一,然而政策自提出以来争议不断,其推行也缺乏成效。既往研究多站在理论层面剖析设计策略或分析利弊,但实际使用者的反馈却被忽视,而开放政策会触及居民的哪些敏感处,如何平衡风险,是城市转型战略能否成功的重要依据。文章引入使用后评估方法,基于实证研究分析居民对于封闭小区边界内外空间多维感知评价结果的不均匀性,并引入模糊数学视角下的感知敏感度计算方法,分析居民多维感知的敏感性,综合判断开放过程的潜在阻力和可能的补偿策略。结果表明,年轻化社区需关注活力业态的可达与小尺度领域塑造,而借开放契机进行社区内管理提质与社区外中小尺度的交流场所营造则是老旧小区的关键。

关键词：开放街区使用后评估居民感知敏感度城市更新设计策略