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具有50至200A测量能力的直流传感器直流载流能力和熔断特性

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中国电子商情 2017年第5期 32-33页

作者： evan shorman caleb mattson shaun milano Allegro Micro Systems公司

电流传感器IC解决方案各种各样,主要分为两大类：第一类具有集成式带电导体,第二类需要设计配合外部磁芯。在具有集成式带电导体的电流传感器IC中,有两种封装可以用于测量50至200A的电流LR和CB。由于采用了集成式带电导体,所以这些IC需... 详细信息

电流传感器IC解决方案各种各样,主要分为两大类：第一类具有集成式带电导体,第二类需要设计配合外部磁芯。在具有集成式带电导体的电流传感器IC中,有两种封装可以用于测量50至200A的电流LR和CB。由于采用了集成式带电导体,所以这些IC需要与测量的电流串联。为了降低集成导体的功耗,导体的电阻极低（LR封装的电阻为200μΩ,

关键词：带电导体电流传感器熔断特性载流能力测量能力磁芯成式 Allegro μΩ 热性

A Study on Multivariable Interactions Concerning Radar Cross Section Reduction through Geometric Attributes

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Journal of Applied Mathematics and Physics 2024年第7期12卷 2582-2593页

作者： evan Sharp STEAM Institute Jacksonville University Jacksonville FL USA

This resolution 5 (25−1 factorial) study aimed to ascertain an understanding of the interactions between different geometries on the resulting Radar Cross Section (RCS) of a target. The results of the study are in line with the general understanding of the impact different geometries have on RCS but show that geometries can also influence the variance of measured RCS, and typical attributes that reduce RCS increase the variance of the measured RCS. Notably, an increased angle between the front face of a plate and the direction of the radar signal decreased RCS but increased the variance of the RCS measured.

关键词： Radar Cross Section RCS Geometrical Attributes Radar Stealth

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超过50A的大电流测量秘诀

今日电子 2017年第9期 34-36页

作者： georges el bacha evan shorman harry chandra allegro microsystems llc公司

测量超过50A的电流困难很大，这是因为测量如此高的电流往往涉及热管理，必须在有限PCB区域内发生，而且在一些情况下，需要电压隔离装置。

关键词：大电流测量隔离装置热管理 PCB

An Expanded View of Complex Traits:From Polygenic to Omnigenic

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四川生理科学杂志 2024年第1期46卷 139-139页

作者： evan A Boyle Department of Genetics Stanford University Stanford CA 94305 USA. Electronic address: eaboyle@stanford.edu. Department of Genetics Stanford University Stanford CA 94305 USA. Electronic address: yangili@stanford.edu. Department of Genetics Stanford University Stanford CA 94305 USA Department of Biology Stanford University Stanford CA 94305 USA Howard Hughes Medical Institute Stanford University Stanford CA 94305 USA. Electronic address: pritch@stanford.edu.

A central goal of genetics is to understand the links between genetic variation and ***,one might expect diseasecausing variants to cluster into key pathways that drive disease *** for complex traits,association signa... 详细信息

关键词： Traits cluster Complex

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2024年第2期10卷 97-104页

作者： Mihai A.Bentan evan R.Reiter Richard M.Costanzo Daniel H.Coelho Department of Otolaryngology-Head&Neck Surgery Virginia Commonwealth University School of MedicineRichmondVirginiaUSA

Objective:The aim of this study was to review findings from a large prospective national database of chemosensory disturbances associated with coronavirus disease 2019(COVID-19)*** Sources:The Virginia Commonwealth University Smell and Taste Center national database of COVID-19 chemosensory ***:A series of online surveys,first opened on April 10,2020,was made accessible nationwide to any adult with sudden chemosensory dysfunction since January *** received subsequent follow-up surveys 14 days,1 month,3 months,and 6 months after *** additional survey was sent to all participants on May 28,2022 to assess long-term *** pertaining to demographics,symptoms,comorbidities,treatments,and life impact was ***:Of 363 participants who reported complete smell recovery,51.2%recovered within 1 month,70%within 3 months,and 79%within 6 months,while 8.8%took over 1 year to completely *** all participants,7.5%had no smell *** predictors of recovery included age<40,male gender,and the presence of nasal *** predictors included difficulty breathing and prior head *** participants reported a decrease in quality of life and the presence of potential safety hazards associated with decreased smell ***:Most subjects with COVID-19-related chemosensory dysfunction recover,with the majority noting complete recovery within weeks of *** aged over 40 years and female gender were associated with lower rates of recovery.A considerable number of participants reported significant impact on quality of life and safety.

关键词： anosmia COVID-19 smell

Investigation of HCAR2 antagonists as a potential strategy to modulate bovine leukocytes

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Journal of Animal Science and Biotechnology 2024年第4期15卷 1567-1577页

作者： Laman K.Mamedova Kirby C.Krogstad Paiton O.McDonald Laxman Pokhrel Duy H.Hua evan C.Titgemeyer Barry J.Bradford Department of Animal Science Michigan State UniversityEast LansingMichigan 48824USA Department of Animal Sciences and Industry Kansas State UniversityManhattanKS 66506USA Comparative Medicine and Integrative Biology East LansingMI 48824USA Department of Chemistry Kansas State UniversityManhattanKS 66506USA

Background Dairy cows experiencing ketosis after calving suffer greater disease incidence and are at greater risk of leaving the herd. In vitro administration of beta-hydroxybutyric acid(BHBA;the primary blood ketone) has inhibitory effects on the function of bovine leukocytes. BHBA is a ligand of HCAR2 and the activation of these receptors promotes an anti-inflammatory response which may be related with immunosuppression observed in transition dairy cattle. The objective of this study was to identify and test antagonists for HCAR2 in bovine immune cells cultured with *** We observed expression of HCAR2 at the protein level within lymphocytes, monocytes, and granulocytes. The proportion of cells expressing HCAR2 tended to be greater in mid-lactation compared to early lactation cows;the increase was a result of increased proportion of T and B cells expressing HCAR2. Stimulation of HCAR2 with niacin or BHBA promoted Ca^(2+) mobilization in neutrophils and mononuclear cells. Mononuclear cells treated with BHBA had diminished intracellular Ca^(2+) responses when HCAR2 was knocked down by si RNA silencing, indicating Ca^(2+) mobilization was mediated by HCAR2 signaling. Two candidate antagonists for HCAR2, synthesized from niacin(NA-1 and NA-5), were tested;monocytes and neutrophils pre-treated with NA-1 and NA-5 had reduced Ca^(2+) mobilization after incubation with BHBA. Furthermore, NA-5 but not NA-1 prevented BHBA-associated reductions in cyclic *** We demonstrated that HCAR2 is present on bovine leukocytes and has greater expression later in lactation. We confirmed that BHBA and niacin derived HCAR2 antagonists alter bovine leukocyte activity. Our results demonstrate that both BHBA and niacin affect bovine leukocyte Ca^(2+) mobilization in a HCAR2-dependent manner.

关键词： Flow cytometry GPR109A HM74A Ketosis

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Atlas摒弃液压系统

科技纵览 2024年第6期 8-9页

作者： evan Ackerman 不详

波士顿动力公司的人形机器人实现电动化并超越了人类的能力。过去10年间,波士顿动力公司的Atlas可以说是现有能力最强、最显眼的人形机器人。但近年来,至少有8家资金雄厚的公司怀有商业野心,开发了自己的人形机器人。即使波士顿动力公... 详细信息

波士顿动力公司的人形机器人实现电动化并超越了人类的能力。过去10年间,波士顿动力公司的Atlas可以说是现有能力最强、最显眼的人形机器人。但近年来,至少有8家资金雄厚的公司怀有商业野心,开发了自己的人形机器人。即使波士顿动力公司开始销售包括电动Spot四足机器人和Stretch搬运机器人在内的其他几种系统,Atlas也仍旧只是一个研究平台,受限于有些凌乱和脆弱的液压肌肉。

关键词：人形机器人搬运机器人四足机器人 Atlas 资金雄厚电动化液压系统波士顿

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人形机器人之年

科技纵览 2024年第1期 44-47,58页

作者： evan Ackerman 不详

10年前,在迈阿密附近举行的美国国防部高级研究计划局(DARPA)机器人挑战赛(DRC)试点活动上,我看到了有史以来最先进的人形机器人在模拟福岛核灾难的场景下挣扎前行。一组经验丰富的工程师控制着每个机器人,机器人头顶有防止它们摔倒的... 详细信息

10年前,在迈阿密附近举行的美国国防部高级研究计划局(DARPA)机器人挑战赛(DRC)试点活动上,我看到了有史以来最先进的人形机器人在模拟福岛核灾难的场景下挣扎前行。一组经验丰富的工程师控制着每个机器人,机器人头顶有防止它们摔倒的安全绳。这些机器人必须展示出机动性、感知能力和操控能力,虽然它们的动作缓慢而艰难,但它们做到了。

关键词：人形机器人高级研究计划局美国国防部安全绳挑战赛感知能力迈阿密

Neonatal Direct Rigid Laryngoscopy and Bronchoscopy: A Near Miss

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Open Journal of Anesthesiology 2024年第4期14卷 126-130页

作者： Dennis E. Feierman Mark Kronenfeld Jacob Sutton Gil Zoizner evan P. Salant Department of Anesthesiology Maimonides Medical Center New York USA Rutgers Robert Wood Johnson University Hospital New Brunswick USA Meir Hospital Clalit Health Services Kefar Sava Israel

Airway management is a skill necessary for healthcare providers who manage patients. Intubation is a skill that both anesthesiologists and intensivists use daily. We present a case of a neonate that developed significant worsening stridor after a successful intubation for a hernia repair. After 4 intubation attempts, with easy visualization of the vocal cords and unsuccessful placement of the endotracheal tube, the patient was emergently brought to the operating room for evaluation.

关键词： Neonate Direct Laryngoscopy Intubation