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电子级多晶硅生产中间产品氯硅烷中痕量磷含量检测方法进展

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化工管理 2024年第10期 59-61页

作者：杨晓青薛心禄岳峥李蔚青海芯测科技有限公司青海西宁810000 青海新能源材料与储能技术重点实验室青海西宁810000

采用改良西门子法在生产电子级多晶硅过程中,精馏中间产物氯硅烷通入多晶硅还原炉,通过氢气还原氯硅烷生产多晶硅,其中氯硅烷中存在的各种形式的磷作为施主杂质,对电子级多晶硅产品质量影响重大。文章系统阐述电子级多晶硅生产中间产品... 详细信息

采用改良西门子法在生产电子级多晶硅过程中,精馏中间产物氯硅烷通入多晶硅还原炉,通过氢气还原氯硅烷生产多晶硅,其中氯硅烷中存在的各种形式的磷作为施主杂质,对电子级多晶硅产品质量影响重大。文章系统阐述电子级多晶硅生产中间产品氯硅烷中痕量磷含量的检测方法及研究进展,通过比较各种氯硅烷中痕量磷含量杂质检测方法的优缺点,以供日常检测参考。

关键词：磷化氢磷氯硅烷多晶硅

New Cembrane-Type Diterpenoids from the South China Sea Soft Coral Sinularia nanolobata

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Chinese Journal of Chemistry 2022年第1期40卷 28-38页

作者： Na Lin Heng Li Jian-Rong Wang Wei Tang Ming-yue zheng Hong Wang Cheng-Shi Jiang yue-Wei Guo Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals and College of Pharmaceutical Science Zhejiang University of TechnologyHangzhouZhejiang 310014China State Key Laboratory of Drug Research Shanghai Institute of Materia MedicaChinese Academy of Sciences555 Zu Chong Zhi RoadZhangjiang Hi-Tech ParkShanghai 201203China Bohai rim Advanced Research Institute for Drug Discovery Binhai East Road198#High-tech ZoneYantaiShandong 264000China School of Biological Science and Technology University of JinanJinanShandong 250022China

In the present study,nine new cembrane-type diterpenoids,namely ximaonanolobatins A—I(1—9),together with six related known analogs(10—15)and four known tetraprenylated alkaloids malonganenones D,E,H,and K(16—19)were isolated from the soft coral Sinularia nanolobata collected off the Ximao Island in the South China *** structures of 1—9 were robustly established by a combination of detailed spectroscopic analyses,chemical reactions,quantum mechanical(QM)-NMR methods,biogenetic consideration,and the comparison with those literature *** absolute configuration of 1 was confirmed by X-ray diffraction analysis,and the absolute configuration of 2 was determined by QM-NMR calculations and chemical *** addition,the absolute configuration of 3 was determined using the modified Mosher's *** these isolates were evaluated for their anti-inflammatory and anti-tumor *** results showed that only compound 15 exhibited potential anti-inflammatory effect against LPS-induced TNF-αrelease in RAW264.7 macrophages with an IC50 value of 12.6μmol/L.

关键词： Sinularia nanolobata Cembranoids X-ray diffraction Con figuration determination Natural products

Two-dimensional reconfigurable electronics enabled by asymmetric floating gate

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Nano Research 2022年第5期15卷 4439-4447页

作者： Tengyu Jin Jing Gao Yanan Wang yue zheng Shuo Sun Lei Liu Ming Lin Wei Chen Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityFuzhou 350207China Department of Physics National University of SingaporeSingapore 117542Singapore State Key Laboratory of Luminescence and Applications Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China Institute of Materials Research and Engineering(IMRE) Agency of ScienceTechnologyand Research(A*STAR)Singapore 138634Singapore Department of Chemistry National University of SingaporeSingapore 117543Singapore National University of Singapore(Suzhou)Research Institute Suzhou 215123China

Reconfigurable devices with customized functionalities hold great potential in addressing the scaling limits of silicon-based field-effect transistors(FETs).The conventional reconfigurable FETs are limited to the applications in logic circuits,and the commonly used multi-gate programming strategies often lead to high power consumption and device ***,we report a reconfigurable WSe_(2) optoelectronic device that can function as photodiode,artificial synapse,and 2-bit memory in a single device,enabled by an asymmetric floating gate(AFG)that can continuously program the device into different homojunction *** lateral p-n homojunction formed in the AFG device exhibits high-performance self-powered photodetection,with a responsivity over 0.17 A·W^(-1) and a wide detection spectral range from violet to near-infrared *** AFG device can also mimic synaptic features of biological synapses and achieve distinct potentiation/depression behaviors under the modulation of both drain-source bias and light ***,when working as a 2-bit memory via the transition between n-n+and p-n homojunctions,the AFG device shows four distinct conductive states with a high on/off current ratio over 106 and good *** reduced processing complexity and reconfigurable functionalities,the WSe_(2) AFG devices demonstrate great potential towards high-performance photoelectric interconnected circuits.

关键词： reconfigurable device two-dimensional(2D)materials homojunction photodiode 2-bit memory artificial synapse

A randomized study of network-based perception learning in the treatment of amblyopia children

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International Journal of Ophthalmology(English edition) 2022年第5期15卷 800-806页

作者： Chang-yue zheng Wei Xu Shun-Qiang Wu Dong-Xu Han Department of Ophthalmology Eye and ENT Hospital Affiliated to Fudan UniversityShanghaiChina NHC Key Laboratory of Myopia Fudan University Key Laboratory of Myopia Chinese Academy of Medical Sciences Fudan UniversityShanghaiChina

AIM:To compare the effectiveness of network-based perception learning(NBPL) and traditional training in the treatment of amblyopia ***:This randomized controlled clinical trial recruited 56 participants aged 4-12 y with anisometropic and/or strabismic amblyopia. Participants were randomly divided into two groups:the NBPL group(n=28) who received patching and NBPL for 3 mo, and the control group(n=28) who got 3 mo of patching and traditional training. Best-corrected visual acuity(BCVA) in the amblyopic eye and stereoacuity were measured and compared at baseline, 1, 2, and 3 mo ***:There were no significant differences in age, gender ratio, and BCVA between the two groups at baseline. At 3 mo, most patients gained lines(2 log MAR lines on average) of BCVA in both groups except one 11-year-old girl in the control group(P<0.05). But no significant difference in BCVA improvement of the amblyopic eye between the two groups was found(P=0.725), and amblyopia resolved(BCVA of 0.1 log MAR or better or within 1 log MAR line of the fellow eye) for 13(46.4%) participants in both groups. The number of patients with improvement of stereoacuity was 25 and 13 in the NBPL group and control group(P=0.041), respectively, and a significant difference exists in the distribution of stereopsis at 3 mo between the two groups(P=0.015). Besides, in patients with measurable stereopsis improvement degree and space for improvement in the two groups, the NBPL group also achieved better stereoscopic improvement than the control group(10/11 vs 4/11, P<0.05).CONCLUSION:The NBPL system has a significant effect on the improvement of BCVA and stereoacuity of amblyopia children and is better than traditional training in terms of stereoacuity improvement. Perceptual learning visual training may play a more important role in the treatment of amblyopia in the future.

关键词： amblyopia perceptual learning stereoacuity best-corrected visual acuity

Idiopathic cholesterol crystal embolism with atheroembolic renal disease and blue toes syndrome:A case report

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World Journal of Clinical Cases 2022年第25期10卷 9162-9167页

作者： De-Jin Cheng Lin Li Xiang-yue zheng Shui-Fu Tang Division of Nephrology The First Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou 510405Guangdong ProvinceChina Division of Nephrology Hua Du Hospitals of Traditional Chinese and Western MedicineGuangzhou 510800Guangdong ProvinceChina Division of Ophthalmology The First Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou 510405Guangdong ProvinceChina

BACKGROUND Cholesterol crystal embolization(CCE)is a multisystemic and fatal disease with multiple clinical manifestations;however,there are few cases of idiopathic *** we report a patient with idiopathic CCE accompanied by atheroembolic renal disease and blue toes who had a relatively good prognosis in the short-term due to early treatment with corticosteroids and *** SUMMARY A 76-year-old man complained of coldness,numbness and purple color change in his left foot for 7 *** had a feeling of fatigue,constipation,foamy urine,poor appetite and *** had a lacunar infarction for 5 years and hypertension for 9 *** results showed elevated eosinophils,cholesterol,uric acid,serum creatinine,urea and 24 h urine analysis revealed proteinuria.A renal biopsy revealed atheroembolic renal *** together,these findings strongly supported the diagnosis of idiopathic CCE and atheroembolic renal *** Atheroembolic renal disease and blue toes syndrome can be caused by idiopathic CCE,and early treatment with corticosteroids is effective but requires further investigation.

关键词： Idiopathic cholesterol crystal embolism Atheroembolic renal disease Blue toes syndrome Corticosteroids Case report Prognosis

甲醇对于PEI-SBA固态胺制备及其性能的影响

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化学试剂 2024年第3期46卷 33-38页

作者：胡海涛郑岳青林贻超宁波大学材料科学与化学工程学院浙江宁波315211 中国科学院、宁波材料技术与工程研究所、浙江省先进燃料电池与电解池技术重点实验室浙江宁波315201

固态胺材料具有优异的二氧化碳(CO_(2))选择吸附性能,是一类潜在的CO_(2)捕集材料。作为一种重要的固态胺材料,SBA-15负载聚乙烯亚胺(PEI-SBA-15)由于原材料较为廉价且性能优异受到了大量的关注。PEI-SBA-15的制备过程需要采用甲醇溶剂... 详细信息

固态胺材料具有优异的二氧化碳(CO_(2))选择吸附性能,是一类潜在的CO_(2)捕集材料。作为一种重要的固态胺材料,SBA-15负载聚乙烯亚胺(PEI-SBA-15)由于原材料较为廉价且性能优异受到了大量的关注。PEI-SBA-15的制备过程需要采用甲醇溶剂,而溶剂使用量对于其CO_(2)吸附性能的影响尚无系统研究。系统研究了溶剂使用量对SBA-15负载聚乙烯亚胺的CO_(2)吸附性能的影响。研究结果表明,可以同时实现提升CO_(2)吸附性能和CO_(2)/N_(2)选择性和大幅降低甲醇的使用量。对于降低PEI-SBA-15的制备成本以及提升制备过程环保性具有重要意义。

关键词： SBA-15分子筛 CO_(2)吸附固态胺聚乙烯亚胺溶剂作用碳中和

氧气雾化器与超声雾化器吸入治疗小儿呼吸系统疾病的临床疗效对比观察

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中国医疗器械信息 2024年第14期30卷 87-89页

作者：王荣平郑跃文林艺兰漳浦县医院儿科福建漳州363200

目的:研究分析小儿呼吸系统疾病治疗中氧气雾化器与超声雾化器的应用效果,并进行临床疗效比较。方法:选取2023年1月~12月接诊的小儿呼吸系统疾病患儿100例,采用随机数字表法分组,常规组予以患儿超声雾化器吸入治疗,研究组予以氧气雾化... 详细信息

目的:研究分析小儿呼吸系统疾病治疗中氧气雾化器与超声雾化器的应用效果,并进行临床疗效比较。方法:选取2023年1月~12月接诊的小儿呼吸系统疾病患儿100例,采用随机数字表法分组,常规组予以患儿超声雾化器吸入治疗,研究组予以氧气雾化器吸入治疗,对比分析疗效。结果:治疗有效性评定,开展治疗后研究组治疗总有效率显著高于常规组(P<0.05),患儿实施呼吸系统疾病治疗期间,不良反应发生率研究组略低(P<0.05),病症反应相关指标、炎症因子指标研究组于采取治疗后改善显著(P<0.05)。结论:予以小儿呼吸系统疾病患儿雾化吸入治疗,氧气雾化器较超声雾化器应用效果更为良好,在促进患儿小儿呼吸系统疾病得到有效治疗的同时,利于增进其雾化器吸入治疗安全性。

关键词：氧气雾化器超声雾化器小儿呼吸系统疾病雾化器吸入治疗临床疗效

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经方辨治厥阴病治疗1型糖尿病胃轻瘫

基层中医药 2024年第3期3卷 6-10页

作者：郑悦刘祥秀罗仕艳谢乃佳贵州中医药大学第一附属医院内分泌科贵州贵阳550001 重庆市中医院消化内科重庆400000

糖尿病胃轻瘫(DGP)常发生于排除机械性肠梗阻的情况下,以胃排空延迟和消化道症状为特征的1型及2型糖尿病患者,为糖尿病常见的一种慢性并发症。目前发病机制不明确,有研究指出DGP在慢性高血糖的基础上与胃肠道激素分泌异常和自主神经功... 详细信息

糖尿病胃轻瘫(DGP)常发生于排除机械性肠梗阻的情况下,以胃排空延迟和消化道症状为特征的1型及2型糖尿病患者,为糖尿病常见的一种慢性并发症。目前发病机制不明确,有研究指出DGP在慢性高血糖的基础上与胃肠道激素分泌异常和自主神经功能紊乱有一定相关性,并且不会随着血糖控制的改善而缓解。近年来,DGP西医治疗以调控血糖、营养神经、促胃动力为主,但其病情迁延反复,给患者的身心健康及生活质量造成了显著影响。中医方面,常将其归属于消渴继发的“痞满”“呕吐”“泄泻”等范畴。目前相关研究指出,DGP为本虚标实之证,脾胃功能失常、中焦气机逆乱为基本病机,夹有痰、瘀等病理产物。根据临床症状,辨证可分为气虚食滞、痰湿中阻、胃阴亏虚、中焦虚寒、瘀血内阻这5型,治疗还需标本兼顾,补虚泻实,以健脾疏肝为主,辅以化痰消瘀之法。在临床期间,基于《伤寒论》对患者进行辨证论治,采取经方治疗本病取得了一定的疗效,本文从病因病机、临床特点及用药特点,探究经方治疗糖尿病胃轻瘫的用药特色和规律。

关键词： 1型糖尿病胃轻瘫伤寒论厥阴病当归四逆加吴茱萸生姜汤医案

脑卒中卧床患者足部压力性损伤预防装置的设计与应用

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中国中西医结合急救杂志 2024年第2期31卷 193-197页

作者：杨湘英郑越张茜林沛钰宁丽杭州市第一人民医院老年医学科浙江杭州310006 杭州市第一人民医院ICU 浙江杭州310006 杭州市第一人民医院护理部浙江杭州310006

目的观察脑卒中卧床患者足部压力性损伤预防装置的临床应用效果。方法选择2021年3月至2022年3月在杭州市第一人民医院重症监护病房(ICU)住院的(166例)脑卒中患者作为研究对象。采用定量研究中的实验设计,根据病区将患者分为对照组(ICU ... 详细信息

目的观察脑卒中卧床患者足部压力性损伤预防装置的临床应用效果。方法选择2021年3月至2022年3月在杭州市第一人民医院重症监护病房(ICU)住院的(166例)脑卒中患者作为研究对象。采用定量研究中的实验设计,根据病区将患者分为对照组(ICU 4楼患者)和观察组(ICU 5楼患者),每组83例;护士也按照此法分组(观察组41名,对照组43名)。两组均进行常规治疗及预防压力性损伤护理,对照组采用海绵圈或现有的枕头减压,并采用丁字鞋内衬毛巾预防足下垂,观察组采用自行设计研发的卧床患者足部压力性损伤预防装置。观察两组患者足部压力性损伤和足下垂的发生率,以及患者使用足部压力性损伤预防装置的满意度和护士操作足部压力性损伤预防装置的满意度。结果观察组足部压力性损伤和足下垂发生率均明显低于对照组〔足部压力性损伤:3.61%(3/83)比8.43%(7/83);足下垂发生率:9.64%(8/83)比16.87%(14/83),均P0.05)。结论足部压力性损伤预防装置适用于脑卒中重症卧床患者,可有效地降低压力性损伤及足下垂的发生率,提高患者和操作人员的满意度,值得在临床上推广使用。

关键词：脑卒中卧床患者压力性损伤足下垂预防