Recent studies have shown that deep neural networks-based recommender systems are vulnerable to adversarial attacks, where attackers can inject carefully crafted fake user profiles (i.e., a set of items users interacted with) into target system achieve malicious purposes, such as promote or demote items. Due the security and privacy concerns, it is more practical perform attacks under black-box setting, architecture/parameters training data cannot be easily accessed by attackers. However,...

Abstract This paper, taking Solar Decathlon China competition project “24 + 35 Housing Home” designed and constructed by Dalian University of Technology as an example, systematically summarizes the design concepts implemented throughout entire process project’s design, production, transportation, construction, focusing on human habitability, efficient prefabrication, sustainability in energy, intelligent connectivity. The is closely aligned with practical situations, emphasis issues...

Previous studies have primarily focused on the effect of built environment ridership during weekdays and weekends. This paper aims to investigate spatial heterogeneity factors at metro stations National Day holidays. Beijing is divided into three zones from inner outer areas. Taking station boarding alighting Dayholidays as dependent variable, 13 were selected independent variables according “7D” dimension environment. The recommended pedestrian catchments (PCA) combinations for in are 400...

Distributed generation (DG) are critical components for active distribution system (ADS). However, this may be a serious impact on power due to their volatility. To problem, interactive load and battery storage best solution. This paper firstly investigates operation characteristics of storage, including flexibility, inter-temporal relations active-reactive relations. Then, multi-period coordinated scheduling model considering is proposed in order minimize overall costs over specific...

Adaptation to user's impedance properties has been viewed imperative in developing assistive exoskeletons. However, most exoskeletons are still rather controlled with predefined joint trajectories. Inspired by the success locomotion control for humanoid robots using central pattern generator (CPG) and human-robot interaction, an based on CPG that can adapt human's is presented this work. The proposed method validated a simulation MATLAB/Simulink, integrating 6-DOF lower limb exoskeleton...

<h3>Background</h3> The activation of mesenchymal cells resulting in substantial extracellular matrix (ECM) deposition emerges as a pivotal factor its pathogenesis Crohn's disease (CD). This study aims to identify potential targets by investigating key Gli1+ cell populations implicated intestinal fibrogenesis. <h3>Methods</h3> Single-cell RNA sequencing was performed on surgical samples from CD patients, encompassing both nonfibrotic and fibrotic sites, well chronic colitis mouse model...

Distributed energy resources (DERs), including distributed generators (DGs), storage devices (SDs) and controllable loads (CLs), are critical components for active distribution system (ADS). Implementation of DERs would impose great challenges on traditional operation. This paper firstly investigates operation characteristics DERs, flexibility, inter-temporal relations active-reactive power relations. Then, a multi-period coordinated scheduling model is proposed integrated ADS, in order to...

A mixed-model assembly line comprises a set of workstations in serial and conveyor moving at constant speed, which can assemble variety products different models during working shift or day. Initial-units that belong to are successively fed onto the given cycle time length get into assembling operations as semi-products. The moves semi-products pass through gradually complete for generating finished products. warehouses stores products, each model has specified warehouse. Customers arrive...

BACKGROUND:This study aimed to evaluate the degree of myopia and reduced physical activity in 3600 college students China between 2018 2020. MATERIAL AND METHODS:The included participants (1742 men 1858 women) aged 19 23 years from a Chinese college. The distribution levels eyesight associated with exercise was assessed using Early Treatment Diabetic Retinopathy Study chart measurement method. RESULTS:The rates enrolled 2018, 2019, 2020 were 84.31%, 87.22%, 89.17%, respectively, which showed...

5 1 (清华大学环境学院, 北京 100084) 2 (佛坪国家级自然保护区, 陕西佛坪 723400) 3 (观音山国家级自然保护区, 4 (长青国家级自然保护区, 陕西汉中 723000) (黄柏塬国家级自然保护区, 陕西太白 721600) 摘要: 秦岭地处我国中西部, 生物地理位置重要, 拥有丰富的生物多样性, 有大熊猫(Ailuropoda melanoleuca)、秦 岭羚牛(Budorcas bedfordi)、 金丝 猴 (Rhinopithecus roxellana)和朱鹮(Nipponia nippon)等4个秦岭森林旗舰物种, 被称 为"秦岭四宝"。利用红外相机技术开展秦岭野生动物的非损伤性监测不仅可以为秦岭山系提供物种名录信息, 还 可以为了解秦岭野生动物的行为和活动格局提供科学数据。清华大学环境学院生态团队自2009-2020年在秦岭中 段南坡先后实施了7个项目, 对秦岭南坡的4个保护区进行了野生动物监测, 面积达1,113 km (26.5 × 42 km), 红外相机位点数267个, 相机日数152,160天,...

Federated learning (FL), integrating group fairness mechanisms, allows multiple clients to collaboratively train a global model that makes unbiased decisions for different populations grouped by sensitive attributes (e.g., gender and race). Due its distributed nature, previous studies have demonstrated FL systems are vulnerable poisoning attacks. However, these primarily focus on perturbing accuracy, leaving critical question unexplored: Can an attacker bypass the mechanisms in manipulate be...

Abnormality detection and identification is of great concern for complex processes monitoring. In chemical industrial parks (CIPs), the primary task to identify abnormal (excess) sources when unexpected excess emissions occur. However, it an ill-posed problem detect, especially them in dense areas, where a vast number emission are concentrated limited space, challenging relatively sparse wireless sensor networks (WSNs). Meanwhile, barely detecting existence rather than identifying can hardly...

Abstract This paper took the China Pavilion of International Horticultural Exhibition 2019 Beijing as subject for study. Based on influence cold climate people’s behaviors and their perception environment, proposed designs green public buildings adapting to analyzed overall functions via tests temperature, humidity, illumination total energy consumption verify ecological features conservancy buildings, forming a closed-loop chain procedures design.