Results 11 to 20 of about 17,507 (167)
ABSTRACT Lithium‐selenium (Li‐Se) batteries have attracted considerable attention due to their high theoretical specific capacity and the intrinsically good electronic conductivity of selenium. Nevertheless, low active‐material utilization, parasitic side reactions, and sluggish reaction kinetics hinder their practical application.
Yanan Fu +8 more
wiley +1 more source
ABSTRACT Single‐atom catalysts are attractive for CO2 photoreduction due to their maximized atomic utilization and tunable electronic structures. In this study, indium (In) single atoms were incorporated into graphitic carbon nitride (CN) through an impregnation‐assisted thermal polycondensation strategy.
Xueying Guo +6 more
wiley +1 more source
ABSTRACT The stability of aqueous Zn2+ batteries is severely hindered by parasitic reactions at the Zn anode/electrolyte interface. Herein, itaconic acid (IA) is introduced as an effective electrolyte additive to achieve a highly stable zinc anode. Remarkably, IA concurrently modulates both the zinc anode/electrolyte interfacial structure and the Zn2 ...
Chenggang Wang +5 more
wiley +1 more source
ABSTRACT Diabetic wound infections are a common complication of diabetes, which severely impact patients' quality of life. Effective treatment of diabetic wound infections remains one major challenge in the clinic, partially due to the formation of bacterial biofilm and antibiotic resistance.
Liang Zhou +8 more
wiley +1 more source
ABSTRACT Thermally driven hydrogenation of CO2 to light olefins (C2=–C4=) using metal oxide‐zeolite tandem catalysts is an effective strategy for achieving carbon neutrality. However, progress in this area is constrained by zeolite pore transport limitations, acid‐site inactivation, and surface carbon poisoning.
Haifeng Tian +10 more
wiley +1 more source
目的观察低剂量丝裂霉素C(MMC)对辐射损伤小鼠外周血白细胞数变化及染色体畸变的影响。方法小鼠腹腔注射低剂量MMC,再给大剂量X射线照射,或先给大剂量X射线照射再给低剂量MMC。观察小鼠白细胞计数及骨髓细胞染色体畸变。结果所有低剂量MMC处理组小鼠骨髓细胞染色体畸变率均低于单纯大剂量照射组,且低剂量MMC处理组的白细胞数降低程度均较单纯照射组有所减轻。结论低剂量MMC可以减轻辐射所致的染色体损伤,具有辐射防护作用。
高峰 +5 more
doaj
低剂量螺旋CT仿真内镜技术在早期结直肠癌诊断中的筛查价值研究
目的 探讨低剂量螺旋CT仿真内镜技术(CTVE)在早期结直肠癌诊断中的筛查价值。方法 回顾性分析2015年1月—2020年7月在张家口市第一医院接受治疗的375例疑似早期结直肠癌患者的临床资料,均采用常规CT和低剂量CTVE对患者进行检查,根据金标准(病理检查结果)分析检查结果,并比较其辐射效果。结果 375例患者经病理检查确诊:恶性315例,良性60例;常规CT检查发现:真恶性290例,真良性46例,误诊14例,漏诊25例。低剂量CTVE结果显示,真恶性312例,真恶性58例,误诊2例,漏诊3例 ...
于文东 +8 more
doaj
Prenatal Exposure to Airborne Particulate Matter on the Development of Heart in Rat Fetus [PDF]
大气颗粒物(ParticulateMatter,PM)是指悬浮在大气中的固体、液体颗粒物的总称。不同来源的颗粒物形成条件不同,其粒径分布、化学组成也不同。目前国际公认的对人类健康危害较大且研究较多的大气颗粒污染物是PM2.5(FineParticulateMatter)和PM10(InhalableParticulateMatter)[1]。越来越多的证据表明,PM严重威胁着人体的健康,更对孕妇及胎儿的发育产生不良影响,导致出生缺陷儿增多,使出生人口质量下降,增加死亡率。因此 ...
龙燕
core
ABSTRACT To address the issues of aluminum (Al) powder agglomeration during combustion and low oxidizer decomposition efficiency in composite solid propellants, this study utilized in situ self‐assembly technology to prepare cobalt‐based hybrid‐coated modified Al powder (Al@CZ).
Chong Chen +11 more
wiley +1 more source
目的观察丝裂霉素C(MMC)对辐射损伤小鼠染色体畸变的影响。方法小鼠腹腔注射低剂量MMC,再给大剂量X射线照射,或先给大剂量X射线照射再给低剂量MMC。观察小鼠骨髓细胞染色体畸变。结果所有低剂量MMC处理组小鼠骨髓细胞染色体畸变率均低于单纯大剂量照射组。结论低剂量MMC可以减轻辐射所致的染色体损伤,具有辐射防护作用。
高峰 +4 more
doaj

