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Effects of Different Substrates on Growth and Survival of Labeo victorianus (Pisces: Cyprinidae, Boulenger 1901) Fry towards Its Conservation along the mara Basin

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Open Journal of Ecology 2023年第1期13卷 37-48页

作者： Paul Sagwe Orina Lucy Wangari Ikanya Robin Abell leonard Akwany mercy Chepkirui Rasowo Joseph Kenya marine & Fisheries Research Institute (KmFRI) Kegati Aquaculture Centre Kisii Kenya Faculty of Agriculture Department of Animal Sciences Jomo Kenyatta University of Agriculture and Technology Nairobi Kenya Conservation International 2011 Crystal Drive Arlington USA Technical University of mombasa Mombasa Kenya

The study evaluated the role of different substrates on water quality, growth and survival of Labeo victorianus fry. Random sampling was used to select 225 fry, stocked at 100/m3 and fed on shell free artemia® (40% - 60% crude protein). Each treatment was carried out in triplicates using gravel and sand as substrates and water media without substrate (control). Growth and survival of the fry was monitored over 4 weeks period at a hatchery set-up. Physicochemical parameters were measured weekly while mortality was documented daily. Substrate type had an effect on water quality, growth and survival of fry. Dissolved Oxygen, growth and survival was higher in tanks under gravel substrate than sand and control while mortality was higher (22%) for sand (p ≤ 0.05) than gravel and sand treatments. Fry in gravel substrate had the best growth response (1.77 ± 0.92 g) while control and sand recorded 1.57 ± 0.90 g and 1.45 ± 0.97 g respectively. In contrast, growth was homogenous during the first 2 weeks of the trial but gravel substrate fry significantly out-grew sand and control in the remaining 3 weeks. However, fry in sand and control experienced compensatory growth towards the end of the study. Therefore, gravel substrate enhances L. victorianus performance and is recommended in the introduction of the species into aquaculture and re-stocking back to the wild.

关键词： Aquaculture Water Quality Fry Treatment

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13位高无杂散动态范围的SAR ADC

电子与封装 2022年第12期22卷 46-52页

作者：杨志新 maureen Willis 高博龚敏四川大学物理学院成都610065

基于标准0.18μm CmOS工艺,设计了一款采样率为500 kSa/s的13位逐次逼近型模数转换器(SAR ADC)芯片。该转换器内集成了多路复用器、比较器、SAR逻辑电路和数模转换器(DAC)电容阵列等模块,实现了数字位的串行输出。使用7+6分段式电容阵... 详细信息

基于标准0.18μm CmOS工艺,设计了一款采样率为500 kSa/s的13位逐次逼近型模数转换器(SAR ADC)芯片。该转换器内集成了多路复用器、比较器、SAR逻辑电路和数模转换器(DAC)电容阵列等模块,实现了数字位的串行输出。使用7+6分段式电容阵列及下极板采样和电荷重分配原理,有效降低了ADC整体电容值及功耗。使用两级预放大的比较器和电荷存储技术降低了失调误差,比较器精度为0.3 mV。在2.5 V电源电压和500 kSa/s的采样率下,后仿真结果表明,ADC的无杂散动态范围为97.14 dB,信噪比为78.78 dB,有效位数为12.78 bit。

关键词：逐次逼近型模数转换器比较器无杂散动态范围电荷重分配

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激光切割指南

激光杂志 1986年第6期7卷 297-301,313页

作者： James m.Darchuk leonard R.migliore 张玉清

高功率激光器在材料加工方面的应用已从实验室研究和开发阶段进入到生产阶段。没有哪个激光材料加工领域如激光切割这样广泛地为人们所接受和这样飞跃地发展。虽然部份是由于制造商提高现有的机械设备，但推动这种发展的主要因素却是用... 详细信息

高功率激光器在材料加工方面的应用已从实验室研究和开发阶段进入到生产阶段。没有哪个激光材料加工领域如激光切割这样广泛地为人们所接受和这样飞跃地发展。虽然部份是由于制造商提高现有的机械设备，但推动这种发展的主要因素却是用户愈益认识到激光的能力。

关键词：激光切割激光材料加工指南高功率激光器实验室研究生产阶段机械设备制造商

种子水分——一种获取最高产量的收获定时指标

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草原与草坪 1985年第1期 22-23页

作者： leonard m.Klein,Jesse E.Harmond,刘自学

对禾草和小粒豆科牧草种子收获作业的调查中发现,由于落粒和用联合收割机收获所造成的损失很大,七种牧草的平均损失率为47.4％,这些对农民收获工作的调查结果是由美国农业部农业研究中心与在corvallis的俄勒冈农业试验站合作,经过四年... 详细信息

对禾草和小粒豆科牧草种子收获作业的调查中发现,由于落粒和用联合收割机收获所造成的损失很大,七种牧草的平均损失率为47.4％,这些对农民收获工作的调查结果是由美国农业部农业研究中心与在corvallis的俄勒冈农业试验站合作,经过四年多的工作而取得的。

关键词：种子水分绛三叶鸭茅果园草禾本科牧草种子含水量种子含水率产量

In vitro evaluation of a new resilient, hard-carbon, thin-film coating as a bearing material for ventricular assist devices ——In Vitro Bearing Evaluation of BiomedFlex

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Journal of Biomedical Science and Engineering 2010年第5期3卷 525-528页

作者： Nicole A. mielke Alex L. massiello David J. Horvath Stephen m. Benefit Darren Burgess leonard A. R. Golding Kiyotaka Fukamachi 不详

Our aim was to evaluate the potential use of BiomedFlex? (BmF), a new resilient, hard-carbon, thin- film coating, as a blood journal bearing material in Cleveland Heart’s continuous-flow left and right ven- tricular assist devices (VADs). BmF is not classified as a diamond-like carbon (DLC) and differs from other thin-film carbon coatings by its high flexural strength, radiopacity, and wear resistance. A 2- to 4-μm-thick BmF adhesion layer was deposited on the VAD journal bearing surfaces. A commercial DLC coating used in other clinical blood pump applications was used as a control. Durability and reliability of the BmF coating was verified in severe pump start/stop testing using 20 BmF-coated journal bearing pairs. The BmF-coated surfaces showed no coating failures, whereas 57% of the DLC bearing pairs developed scratches through the carbon coating, documenting that BmF can provide a durable coating in our blood journal bearing application. In conclusion, BmF has shown qualities that support its significant advantages as an alternative journal bea- ring material in Cleveland Heart pumps. Our plan includes biocompatibility testing with ongoing animal studies, endurance testing with submerged pumps running in saline, and assessment of batch coating processing capability.

关键词： Heart Assist Device Diamond-Like Carbon materials Testing Wear Resistance Journal Bearing

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基于电阻网络修调的高精度基准源

电子与封装 2022年第7期22卷 29-33页

作者：胥权赵新龚敏高博 maureen Willis 四川大学物理学院微电子系微电子技术四川省重点实验室成都610064

针对高精度集成电路系统,工艺条件导致的误差需要通过修调弥补。基于0.18μm CmOS工艺设计了一种针对片上基准源的修调电路,通过调整数字输入信号,对电阻网络修调电路进行控制,通过重配置输出级电阻比例,从而达到对基准源电压的调整。... 详细信息

针对高精度集成电路系统,工艺条件导致的误差需要通过修调弥补。基于0.18μm CmOS工艺设计了一种针对片上基准源的修调电路,通过调整数字输入信号,对电阻网络修调电路进行控制,通过重配置输出级电阻比例,从而达到对基准源电压的调整。基准源采用改进的Neuteboom带隙电路,在5 V电源电压的工艺条件下进行仿真测试,在-40~125℃温度范围内,实现了2.98×10^(-6)/℃的温度系数。通过电阻网络修调的基准电压变化范围为2.3840~2.5154 V,电压修调步长为2 mV。

关键词：带隙基准修调电路温度系数电阻网络

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WEPP——新一代的侵蚀预报技术

水土保持科技情报 1993年第2期11卷 53-57,51页

作者： John m.Laflen leonard J.Lane George R.Foster 孙桐

侵蚀预报是美国水土保持规划、设计最常用、最有效的方法.用侵蚀预报可根据可能的侵蚀影响对可选措施进行排序.

关键词：土壤侵蚀预报水土保持

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结核病和隐性结核感染的治疗进展

美国医学会杂志（中文版） 2006年第3期25卷 170-177页

作者： Henry m. Blumberg michael K. leonard Robert m. Jasmer 谢晓玮（译）崔德健（校） Division of Infectious Diseases Department of Medicine Emory University School ofMedicine Atlanta Ga Epidemiology Department Grady Memorial Hospital Atlanta Ga Division of Pulmonary and Critical Care medicine San Francisco General Hospital University of California San Francisco 不详

结核病（tuberculosis，TB）已成为威胁全球公共健康的传染病。在美国，尽管从1992年起病例数即已在降低。但TB在某些病人群体中依然是一个严重的公共卫生问题，并且在很多都市地区高度流行。对药物敏感TB，以利福平为基础的治疗方案最... 详细信息

结核病（tuberculosis，TB）已成为威胁全球公共健康的传染病。在美国，尽管从1992年起病例数即已在降低。但TB在某些病人群体中依然是一个严重的公共卫生问题，并且在很多都市地区高度流行。对药物敏感TB，以利福平为基础的治疗方案最短疗程是6～9个月。制定一套正确的用药方案。并确保治疗的实施。是公共卫生机构或临床医生而非病人的责任。TB初始治疗处方通常包括4种药物：异烟肼、利福平吡嗪酰胺、乙胺丁醇。将药物直接发给病人，并且看着他（她）吞下抗TB药。此即所谓直接督导治疗，应向所有确诊TB的病人推荐这种作法。它有助于确保较高的全程治疗率。防止耐药TB的发生。增强对TB的控制。为了减少TB危险源。作为一项TB控制策略。美国重新重视了隐性TB感染的治疗。两大类人应进行隐性TB感染检查：近期有被感染可能的人（比如接触过TB病例的人）以及感染结核分枝杆菌后有进展为TB高危因素的人（如人类免疫缺陷病毒感染和选择性药物治疗者；新近从TB高发国家移民到美国者）。隐性TB感染的首选治疗方案是服用9个月的异烟肼。治疗TB和隐性TB感染新药的开发现在亦重新引起人们的关注。这也是临床的迫切需要。

关键词：隐性结核感染治疗进展结核病人类免疫缺陷病毒感染 TB感染病人群体公共卫生问题药物敏感公共卫生机构结核分枝杆菌

Improving quality of life in self-reported gastrointestinal disorders: An open trial of a food elimination diet guided by the ImmunoBloodprint food sensitivity test

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Open Journal of Internal medicine 2013年第3期3卷 106-113页

作者： Judi m. Woolger Johanna Lopez Angelica B. melillo Eduard Tiozzo Yaima Alonso Soyona Rafatjah Amine Sarabia Susanna m. leonard Evan G. Long michael Schoor Jared Tannenbaum Janet Konefal John E. Lewis 3Department of Psychiatry & Behavioral Sciences University of Miami Miller School of Medicine Miami USA Department of Dietetics and Nutrition Florida International University Miami USA Department of medicine University of Miami Miller School of Medicine Miami USA Department of Psychiatry & Behavioral Sciences University of Miami Miller School of Medicine Miami USA

Purpose: Irritable bowel syndrome (IBS) and gastrointestinal (GI) disorders are genuine health problems that have serious consequences on a patient’s quality of life (QoL). IBS is a functional disorder characterized by chronically recurring symptoms, including abdominal pain or discomfort, altered stool frequency and consistency, and abdominal bloating in the absence of structural or biochemical abnormalities. Studies have indicated that symptoms and disability related to IBS and GI disorders correlate with QoL measures. Additionally, those who respond to therapy have an improvement in QoL. Therefore, we explored an open trial of a food elimination diet guided by the ImmunoBloodprint food sensitivity test and its effect on QoL in patients self-reporting an unresolved GI disorder. methods: Eighty-four subjects aged 18 and above participated in the study. Subjects eliminated all IgG-mediated reactive foods from their diet for 90 days. QoL was assessed with the Irritable Bowel Syndrome-36 (IBS-36) and the medical Outcomes Study Short Form-36 (SF-36) at baseline and 30-, 60-, and 90-day follow-up. The data were analyzed with linear mixed models. Results: Subjects had statistically significant improvements in all indicators of QoL according to the IBS-36 and SF-36 from baseline to 90- day follow-up. Conclusions: Subjects with unresolved self-reported GI disorders were able to improve all indicators of QoL in response to eliminating IgG- reactive foods from the diet. Given the inconvenience of keeping track of foods and symptoms to eliminate intolerant foods, a food sensitivity test combined with an elimination diet may be an effective method for improving subjective markers of QoL and health.

关键词： GI Disorders Food Sensitivity Testing Elimination Diet Food Intolerance IBS-36 SF-36