Results 31 to 40 of about 11,547 (179)

Index system of the water flooding development of oil fields and its structural analysis

open access: yesPetroleum Exploration and Development, 2010
Oilfield development is mainly subject to two kinds of indices: (1) material basis deciding the oilfield development effect (showing index system of geological status of natural reservoir geological features); (2) artificial factors deciding development ...
Liu Chunlin, Xiao Wei
doaj   +1 more source

环境监测质量控制与质量管理概论

open access: yes生态环境与保护, 2020
环境监测目的在于通过分析关于环境质量的各项评定指标,并且根据实际的监测指标来判断当下的环境污染情况及环境保护工作质量。同时还可以通过环境监测来了解环境的各个阶段的实际情况,并将所获得准确信息和数据上报给环境保护部门。另外环境监测还可以为解决环境污染问题提供重要的科学依据。因此为了保障环境监测质量,本文阐述了环境监测质量控制与质量管理工作的必要性及其主要作用,对环境监测质量控制与质量管理的策略进行了探讨分析。
群 吴
semanticscholar   +1 more source

岩石矿物分析化验中的质量控制要点

open access: yes工程建设, 2020
地壳中的某种化学元素,或是几种化学元素发生聚合后就会形成岩石矿物,因而在展开地质勘探工作时,必须要完成好成分分析工作。从岩石矿物分析的实际情况来看,理论、实践应该切实整合起来,在此基础上完成操作方案的制定工作,如此方可获得种类指标,进而保证矿物回收能够顺利完成。文章主要针对岩石矿物分析化验展开深入探析,将其中的质量控制要点寻找出来,进而提出切实可行的控制方法。
新刚 延
semanticscholar   +1 more source

Technical discussion on incorporating methanol transport in product oil pipelines [PDF]

open access: yes
ObjectiveUtilizing existing product oil pipelines for additional methanol transport can enhance hydrogen and methanol delivery while addressing the issue of insufficient throughput in product oil pipelines.
Bohui SHI   +6 more
core   +1 more source

检验报告修改率统计与分析 [PDF]

open access: yes
Objective: Accordingto the statistics and regulatory inspection reports modification rate, incorporated in the hospital quality control target,together withthe strictly control and management makethe inspection results change rate up to the hospital ...
He, Xing
core   +2 more sources

The spectrum effect relationship of Tripterygium Wilfordii Hook.f. [PDF]

open access: yes, 2016
雷公藤的药理作用广泛,其中抗炎和免疫抑制作用尤其突出,临床多用于类风湿性关节炎、自身免疫疾病如肾病综合征等的治疗。但其不良反应不容忽视,雷公藤的不良反应涉及多器官、多系统且多数患者不能耐受。其不良反应发生的主要原因有雷公藤化学成分复杂且其药效、毒性物质基础尚不明确,缺乏科学、有效的质量评价和控制方法,导致不同厂家生产的雷公藤制剂疗效及毒副作用差异大,临床上缺乏使用指南等。因此,如何快速识别雷公藤中的药效成分和毒性成分,建立科学、有效的质量评价和控制方法,提高雷公藤制剂质量是促进雷公藤在临床安全使用的前提。
昊霞
core  

Surface roughness rolling-transfer regularity and prediction model of high strength steel strips [PDF]

open access: yes, 2016
The surface roughness rolling-transfer and change law of high strength steel strips and the surface roughness change law of working rolls are studied through a batch of field experiments and analyzed by a statistical method to find out a control method ...
LI Rui   +4 more
core   +1 more source

Development of a Four‐Language Questionnaire to Investigate Environmental Risk Factors for the Development of Canine Atopic Dermatitis and to Monitor Disease Course and Progression

open access: yesVeterinary Dermatology, Volume 37, Issue 1, Page 34-44, February 2026.
Background: The chronic and multifactorial character of canine atopic dermatitis (cAD) often leads to poor disease control and treatment dissatisfaction. Environmental factors are likely to contribute to the disease development and may play a more important role than assumed previously.
Patricia Clara‐Maria Rhodius   +11 more
wiley   +1 more source

In Situ Uniform Lithium Enrichment for Dense, High‐Performance LLZO Solid Electrolytes

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT A major challenge in garnet‐type Li7La3Zr2O12 (LLZO) system all‐solid‐state electrolytes is the high porosity that typically remains after sintering, which compromises ionic conductivity and degrades battery cycling performance. To address this, we propose an innovative strategy to achieve uniform lithium enrichment on the surface of ...
Yi‐Yang Xiao   +8 more
wiley   +1 more source

International clinical practice recommendations on the definition, diagnosis, assessment, intervention, and psychosocial aspects of developmental coordination disorder – Chinese (Mandarin) translation

open access: yesDevelopmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019
目的 本国际临床指南由欧洲残疾儿童学会(the European Academy of Childhood Disability,EACD)牵头制定,旨在解决发育性协调障碍(developmental coordination disorder,DCD)的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题,通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础,以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类,最终转化为指南建议。并由国际 ...
Jing Hua   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy