activity

摘要： Electrochemical reduction of CO_(2)to value-added chemicals using renewable electricity provides a promising strategy to achieve sustainable fuel production and carbon neutrality.Along with the development of electrocatalysts,fow cells with gas-diffusion electrodes(GDEs)have been used to reach commercially viable current densities for CO_(2)electrolysis,while the local environment and CO_(2)mass transport in the electrodes remain to be elucidated.In this review article,we highlight some insights into the microenvironment in the catalyst layer for CO_(2)electrolysis,including typical mass transport models for CO_(2)reduction in H-type cells and GDE fow cells,the effect of a hydrophobic microenvironment on CO_(2)mass transport and catalytic performance,and the formation of a gas/liquid balance and solid–liquid–gas interfaces for CO_(2)electrolysis.The insights and discussions in this article can provide important guidelines on the design of catalysts,electrodes,and electrolyzers for CO_(2)electrolysis,as well as other gas-involving electrocatalytic reactions.

摘要： Commercially pure titanium and titanium alloys have been among the most commonly used materials for biomedical applications since the 1950 s.Due to the excellent mechanical tribological properties,corrosion resistance,biocompatibility,and antibacterial properties of titanium,it is getting much attention as a biomaterial for implants.Furthermore,titanium promotes osseointegration without any additional adhesives by physically bonding with the living bone at the implant site.These properties are crucial for producing high-strength metallic alloys for biomedical applications.Titanium alloys are manufactured into the three types ofα,β,andα+β.The scientific and clinical understanding of titanium and its potential applications,especially in the biomedical field,are still in the early stages.This review aims to establish a credible platform for the current and future roles of titanium in biomedicine.We first explore the developmental history of titanium.Then,we review the recent advancement of the utility of titanium in diverse biomedical areas,its functional properties,mechanisms of biocompatibility,host tissue responses,and various relevant antimicrobial strategies.Future research will be directed toward advanced manufacturing technologies,such as powder-based additive manufacturing,electron beam melting and laser melting deposition,as well as analyzing the effects of alloying elements on the biocompatibility,corrosion resistance,and mechanical properties of titanium.Moreover,the role of titania nanotubes in regenerative medicine and nanomedicine applications,such as localized drug delivery system,immunomodulatory agents,antibacterial agents,and hemocompatibility,is investigated,and the paper concludes with the future outlook of titanium alloys as biomaterials.

摘要： Purpose: Compared to levels in the general population, people with experiences of psychosis have poorer physical fitness, more sedentary behaviour, lower physical activity, more sleep problems, and a higher incidence of insomnia. The aim of the current study was to examine the feasibility and impact of an intervention with the goal of addressing these issues. Method: Design: intervention with outcome measure data collection, with no control group. Forty-nine early intervention psychosis (EIP) service patients took part in an intervention: provision of a Fitbit, Fitbit software apps, sleep hygiene, and physical activity guidance, and three discussion sessions with clinicians. The sample consisted of 29 males and 20 females, with age range of 17 - 54 years, and average age of 29.5 years. Measures used were Fitbit activity and sleep data, and self-rated Warwick–Edinburgh Mental Wellbeing Scale (WEMWBS) and Positive and Negative Affect Schedule (PANAS). Results: WEMWBS scores significantly improved, with a medium effect size. PANAS negative affect (NA) dropped significantly. Analysis of Fitbit activity and sleep data yielded non-significant results. Conclusion: The intervention was acceptable to EIP patients and is feasible. Improvements in mental wellbeing and negative affect indicate the positive impact of the intervention on mental health. EIP services should consider assessing sleep quality and physical activity/exercise levels, and using this study’s intervention to promote wellbeing and mental health within recovery focused practice. Further research could be undertaken through a sufficiently powered randomised control trial (RCT) comparing this intervention and treatment as usual (TAU).

摘要： The activity is related to the mineralogy and geological history of clays. Soils with the same value of the liquidity limit or plasticity index can have very different characteristics depending on the amount and type of clay minerals. The methylene blue value characterizes the activity of the clays and reflects the surface activity. Ten inactive soils contain minerals (kaolinite, illite), these soils absorb little water. Two swelling soils have normal activity and are composed of minerals (kaolinite, illite, Montmorillonite). The relationships between clayey soils properties, their activities and between the activity and the liquidity limit are defined. The correlations obtained are linear fit and exponential and sigmoidal fits. The correlations obtained with a coefficient of determination of R2 (0.859 - 0.999) can be used to characterize and predict certain parameters of fine-grained soils as a function of clay content.

摘要： This study is to determine the activities and correlations in the fundamental properties of the termite mounds soils Cubitermes spp and Macrotermes sp. The Intrinsic properties depend on the mineralogy, organic composition and texture of soil. Grain size, Atterberg limits and soil blue values are geotechnical properties that were used to characterize the two soils. On the basis of the geotechnical properties, specific surface area, cation exchange capacity, relative activity, surface activity and soil activity were determined. The correlations obtained in the intrinsic soil properties are linear and polynomial fits. Indeed, the relationship between the plasticity index and the blue value of a soil on the one hand and between the specific surface area and the cation exchange capacity on the other hand, is a linear fit for all soils in general. The relationship between plasticity index and specific surface area is a linear fit for the soils (C, M). Correlations in intrinsic soil properties that have a coefficient of determination close to 1 can be used in geotechnical engineering to predict one of the two desired parameters.

摘要： Camping is a fun activity.When you camp,you go away from the city.You have an adventure in nature.You can relax and enjoy fresh air.You can camp in the mountains,in a forest or near a lake.There are so many beautiful places to camp!You can hear the sounds of nature and maybe see wildlife.At night you can enjoy the stars.When you camp,you can sleep in a sleeping baa in a tent.You can also sleep in an RV.

摘要： CO_(2)electroreduction offers a promising approach to alleviate global warming and reduce petroleum consumption simultaneously,due to its capability to convert the greenhouse gas CO_(2)to valuable fuels and chemicals by using renewable electricity.Electrocatalyst has an essential impact on the CO_(2)electroreduction performance.Among the diverse exploited materials,Cu is the only monometallic electrocatalyst that can produce CO and hydrocarbons.However,its activity,selectivity,and durability are not satisfactory for practical applications.Here,we make a comprehensive survey of the recent progress in enhancing Cu-based electrocatalysts with the strategies such as oxidation pre-treatment,heteroatom doping,morphological control,and surface modification.This review provides an overview of the current status and future opportunities for Cu-catalyzed CO_(2)electroreduction.It may contribute to the rational design of Cu-based electrocatalysts with improved performance and thus advance practical CO_(2)electrolyzer development.

摘要： BACKGROUND The association between PPARGC1A rs8192678 and nonalcoholic fatty liver disease(NAFLD)requires further confirmation.In addition,it is still unknown whether PPARGC1A rs8192678 is associated with hepatic histological features in NAFLD in the Chinese population.AIM To investigate the interaction between PPARGC1A rs8192678 and nonalcoholic steatohepatitis(NASH),and whether this polymorphism is associated with hepatic histological features.METHODS Fifty-nine patients with liver biopsy-proven NAFLD and 93 healthy controls were recruited to a cohort representing the Chinese Han population.The SAF(steatosis,activity,and fibrosis)scoring system was used for hepatic histopathological evaluation.The polymorphisms of PPARGC1A rs8192678 and patatin-like phospholipase domain-containing protein 3(PNPLA3)rs738409 were genotyped.The intrahepatic mRNA expression of PPARGC1A was evaluated by real-time polymerase chain reaction.RESULTS Thirty-seven patients with NAFLD had NASH,of which 12 were nonobese.The PPARGC1A rs8192678 risk A allele(carrying GA and AA genotypes)had the lowest P value in the dominant model;the odds ratio(OR)for NAFLD was 2.321[95%confidence interval(CI):1.121-4.806].After adjusting for age,sex,and the PNPLA3 rs738409 risk G allele,the PPARGC1A rs8192678 A allele was a risk factor for NAFLD(OR 2.202,95%CI:1.030-4.705,P=0.042).The genetic analysis showed that patients with NAFLD,moderate-to-severe steatosis(S2-3),and Activity 2-4(A≥2)were more likely to carry A in PPARGC1A rs8192678(OR 5.000,95%CI:1.343-18.620,P=0.012;and OR 4.071,95%CI:1.076-15.402,P=0.031).The multivariate logistic regression analysis showed that PPARGC1A rs8192678 risk A allele was also independently associated with S2-3,A≥2,and NASH(OR 6.190,95%CI:1.508-25.410,P=0.011;OR 4.506,95%CI 1.070-18.978,P=0.040;and OR 6.337,95%CI:1.135-35.392,P=0.035,respectively)after adjusting for age,sex,body mass index,and PNPLA3 rs738409 risk G allele.The results also showed that this polymorphism was associated with nonobese NASH(OR 22.000,95%CI:1.540-314.292,P=0.021).The intrahepatic expression of PPARGC1A mRNA was significantly lower in the group of patients who carried the risk A allele(P=0.014).CONCLUSION The PPARGC1A rs8192678 risk A allele is associated with NAFLD,and with S2-3,A≥2 and NASH in NAFLD patients,independent of PNPLA3 rs738409,and may be associated with nonobese NASH.

摘要： High temperature solid oxide fuel cell(SOFC)is the most efficient and clean energy conversion technology to electrochemically convert the chemical energy of fuels such as hydrogen,natural gas and hydrocarbons to electricity,and also the most viable alternative to the traditional thermal power plants.However,the power output of a SOFC critically depends on the characteristics and performance of its key components:anode,electrolyte and cathode.Due to the highly reducing environment and strict requirements in electrical conductivity and catalytic activity,there are limited choices in the anode materials of SOFCs,particularly for operation in the intermediate temperature range of 500–800C.Among them,Ni-based cermets are the most common and popular anode materials of SOFCs.The objective of this paper is to review the development of Ni-based anode materials in SOFC from the viewpoints of materials microstructure,performance and industrial scalability associated with the fabrication and optimization processes.The latest advancement in nano-structure architecture,contaminant tolerance and interface optimization of Ni-based cermet anodes is presented.And at the end of this paper,we propose and appeal for the collaborative work of scientists from different disciplines that enable the inter-fusion research of fabrication,microanalysis and modelling,aiming at the challenges in the development of Ni-based cermet anodes for commercially viable intermediate temperature SOFC or IT-SOFC technologies.

摘要： Zero or negative emissions of carbon dioxide(CO2)is the need of the times,as inexorable rising and alarming levels of CO2 in the atmosphere lead to global warming and severe climate change.The electrochemical CO2 reduction(eCO2R)to value‐added fuels and chemicals by using renewable electricity provides a cleaner and more sustainable route with economic benefits,in which the key is to develop clean and economical electrocatalysts.Carbon‐based catalyst materials possess desirable properties such as high offset potential for H2 evolution and chemical stability at the negative applied potential.Although it is still challenging to achieve highly efficient carbon‐based catalysts,considerable efforts have been devoted to overcoming the low selectivity,activity,and stability.Here,we summarize and discuss the recent progress in carbon‐based metal‐free catalysts including carbon nanotubes,carbon nanofibers,carbon nanoribbons,graphene,carbon nitride,and diamonds with an emphasis on their activity,product selectivity,and stability.In addition,the key challenges and future potential approaches for efficient eCO2R to low carbon‐based fuels are highlighted.For a good understanding of the whole history of the development of eCO2R,the CO2 reduction reactions,principles,and techniques including the role of electrolytes,electrochemical cell design and evaluation,product selectivity,and structural composition are also discussed.The metal/metal oxides decorated with carbon‐based electrocatalysts are also summarized.We aim to provide insights for further development of carbon‐based metal‐free electrocatalysts for CO2 reduction from the perspective of both fundamental understanding and technological applications in the future.

摘要： 本发明实施例公开了一种获取当前Activity对象的方法、装置、存储介质及移动终端。该方法包括：通过getManager()静态方法获取唯一的Activity管理器对象；在所述Activity管理器对象中，通过预定义的堆栈类型的集合变量调用添加Activity的方法，在所述Activity管理器对象中进行添加Activity操作；其中，所述集合变量的访问权限为私有类型；在预定义的继承Activity类的BaseActivity类中的生命周期方法，通过调用添加Activity的方法，将当前的Activity对象添加到集合变量的栈顶；通过预定义的公有类型的currentActivity方法访问集合变量的栈顶，返回当前Activity对象。通过采用本申请所提供的技术方案，可以实现对Activity对象的管理。

摘要： 一种防止Activity生命周期异常的方法、电子装置及计算机可读存储介质，其中，该防止Activity生命周期异常的方法包括：监听进程的状态；若被监听的进程已终结，则检测是否重建已终结进程；若重建已经终结进程，则强制将返回栈顶部的Activity进行恢复操作，以将恢复的Activity对应用户界面显示于终端的前台。本申请提供的方案可以解决现有Android系统在AMS尚未来得及清理已终结进程的相关数据时导致的用户界面异常。

摘要： 本发明提供一种Activity组件加载方法及装置。其中，该Activity组件加载方法包括：获取预先嵌入Android系统的开放服务网关协议框架的BundleContext；确定待启动的Activity组件；获取与所述待启动的Activity组件关联的bundle标识符；根据当前获取的bundle标识符，调用所述BundleContext的BundleContext.start方法启动相应的bundle文件，以便加载相应的Activity组件，其中，所述bundle文件由jar文件转化而成，所述jar文件由所述Activity组件的源代码编译而成。本发明提供的技术方案能够使得Activity组件的动态加载成为可能。

摘要： 本发明实施例提供了一种插件中Activity的注册方法、装置、电子设备及存储介质，方法应用于宿主，包括：获得用于加载Activity的Intent信息，确定插件中的待加载Activity；得到待加载Activity预设属性的目标属性值；在第一类Activity中查找预设属性的属性值为目标属性值的目标Activity，第一类Activity为：第二文件中预先声明的Activity，第二文件为：宿主的AndroidManifest.xml文件；设置Intent信息指向目标Activity，完成待加载Activity注册。应用本发明实施例提供的技术方案，实现了灵活的对插件中Activity进行注册。

摘要： 本发明介绍了一种控制Activity数量的方法、装置、设备及可读存储介质，该方法包括：获取在应用程序APP中新产生的活动窗口Activity，并判断与所述APP对应的总队列容器中已存储的Activity的数量是否达到第一预设阈值；在所述总队列容器中已存储的Activity的数量达到第一预设阈值的情况下，将所述总队列容器中最前端的Activity删除；将所述新产生的Activity存储到所述总队列容器的末端。通过控制APP内总的Activity数量，降低了APP出现崩溃和内存溢出的概率。

摘要： 说明书披露一种Android系统Activity的启动方法和装置。该方法包括：响应于来自服务端的推送消息，基于预定的Activity启动规则对所述推送消息进行解析；若解析失败，则将所述推送消息携带的启动字符串转换为Intent；基于所述Intent创建PendingIntent；当所述PendingIntent对应的通知栏消息被触发时，启动所述推送消息对应的Activity。

摘要： 本公开旨在提供一种限制Activity启动的方法、装置及存储介质，用以解决相关技术中应用随意开启透明Activity导致系统调度出错的问题。公开的限制Activity启动的方法包括：在接收到Activity启动请求后，判断终端当前是否处于锁屏状态；在终端处于锁屏状态的情况下，判断Activity是否属于预设禁止启动的Activity；若Activity属于预设禁止启动的Activity，禁止启动Activity；若Activity不属于预设禁止启动的Activity，允许启动Activity。本公开提高了终端系统的稳定性。

摘要： 本发明提供一种Activity历史数据迁移方法，属于信息处理技术领域，本发明以服务的形式提供历史数据迁移，在定时任务中通过Web界面配置历数数据迁移任务；通过定时任务界面查看任务执行结果。从而保证数据的有效性，同时也减少了一些重复的工作量，最终也降低了成本。

摘要： 本申请涉及通信技术领域，提供一种Activity组件调用处理方法、系统、计算机设备及存储介质，包括：与调用方之间建立通信连接，并与预置的代理Activity组件之间构建跨进程连接；接收调用方输入的意图信息，通过跨进程连接将意图信息发送至代理Activity组件，并使代理Activity组件调用相应于意图信息的目标Activity组件对意图信息进行处理并得到返回结果；接收代理Activity组件发送的返回结果，并将返回结果返回至调用方。本申请实现了Activity组件的跨进程调用，扩大了调用方能够调用的目标Activity组件的范围，降低了调用方代码的复杂程度并且提高了调用方的逻辑性，不仅确保了调用方能够高效的从目标组件中获取数据，还有利于运维和测试对调用方进行维护和功能测试。

摘要： 本发明公开了一种移动应用Activity页面全遍历的测试方法，包括如下步骤：S1,获取到需要分析的样本；S2,安装到目标机器上；S3,通过解析样本中AndroidMan i fest.xml配置文件，获取activity节点中android:name属性值，并存储，并获取android:exported值，判断组件是否导出；S4,对于导出组件即android:exported＝”true”的组件，使用普通权限通过am start PackageName/ActivityName命令即可直接启动组件；S5,对于未导出的组件，在API19的机器上，可以在相应权限下通过am start PackageName/ActivityName命令即可直接启动组件；S6,通过步骤S4和步骤S5，对步骤S3解析到的组件进行遍历，即可全部遍历页面。本发明，提供的方法针对移动APP自动化测试进行全页面遍历：兼容性高、复用度强。