利用管桩余浆和破碎混凝土固体废料年产3万m~3混凝土砖生产线的物料平衡和经济效益分析

分析研究表明:对于年产800万米PHC高强混凝土管桩,同时拥有年产60万m~3商品混凝土生产线的建材企业,每年产生的管桩余浆约为60000吨、混凝土固体废料约为32540m~2。如果把这些余浆和混凝土固体废料,用来生产混凝土砖的话,每年可以生产混凝土砖3万m~3。本混凝土砖生产线,刚好能把上述管桩余浆和混凝土固体废料全部利用,每年可获利税438万元

The perceived value of cross-border self-funded postgraduate education in Hong Kong

This study examines the perceived value of higher education by mainland Chinese students enrolled in self-funded taught postgraduate courses (STPCs) at a prestigious university in Hong Kong. Using a quantitative research approach, this study adapts the questionnaire from Lai et al.’s (2012) research and analyses the resulting 269 responses. The findings indicate that career prospects, parental influences and social interaction on campus are strong drivers of value in a self-funded taught postgraduate education setting. In addition, when comparing value judgments on demographic and social variables, the results show that students across all disciplines believe that the image projected by the host university adds value to their STPC degrees. The results also indicate that students from the faculties of Business & Economics and Engineering exhibit high satisfaction regarding the functional value associated with the career prospects brought by their degree; however, students from the faculty of Education are most concerned with the value their degree may bring with regard to vocational opportunities and future earnings.published_or_final_versionEducationMasterMaster of Educatio

Expert consensus on the management of dermatogenic chronic pruritus in children

瘙痒见于多种疾病,在儿童多由皮肤疾病导致,即皮肤源性瘙痒.持续存在的慢性瘙痒治疗困难,可对患儿的睡眠、情绪、认知、学校表现及社会家庭功能等方面产生负面影响,严重影响患儿及其家庭成员的生活质量.临床上迫切需要对儿童慢性瘙痒进行规范化管理,而目前国内外缺乏独立的儿童慢性瘙痒诊疗指南或共识.该共识根据循证医学证据及专家意见,制定了一套针对0～18岁儿童皮肤源性慢性瘙痒的管理方案,供临床医生参考.</p

Measurement of integrated luminosity of data collected at 3.773 GeV by BESIII from 2021 to 2024

We present a measurement of the integrated luminosity e+e- of collision data collected by the BESIII detector at the BEPCII collider at a center-of-mass energy of Ecm = 3.773 GeV. The integrated luminosities of the datasets taken from December 2021 to June 2022, from November 2022 to June 2023, and from October 2023 to February 2024 were determined to be 4.995±0.019 fb-1, 8.157±0.031 fb-1, and 4.191±0.016 fb-1, respectively, by analyzing large angle Bhabha scattering events. The uncertainties are dominated by systematic effects, and the statistical uncertainties are negligible. Our results provide essential input for future analyses and precision measurements

Determination of the number of ψ(3686) events taken at BESIII

The number of ψ(3686) events collected by the BESIII detector during the 2021 run period is determined to be (2259.3±11.1)×106 by counting inclusive ψ(3686) hadronic events. The uncertainty is systematic and the statistical uncertainty is negligible. Meanwhile, the numbers of ψ(3686) events collected during the 2009 and 2012 run periods are updated to be (107.7±0.6)×106 and (345.4±2.6)×106, respectively. Both numbers are consistent with the previous measurements within one standard deviation. The total number of ψ(3686) events in the three data samples is (2712.4±14.3)×10^