Results 71 to 80 of about 1,325,111 (299)

Unified User Association and Contract-Theoretic Resource Orchestration in NOMA Heterogeneous Wireless Networks

IEEE Open Journal of the Communications Society, 2020
Lately, the deployment of heterogeneous wireless networks has emerged, as part of the 5G vision, to cope with the users’ exaggerated service demands.
M. Diamanti, Georgios Fragkos, E. Tsiropoulou, S. Papavassiliou   +3 more
semanticscholar   +1 more source

Extraordinary n‐type Tellurium‐Free Thermoelectric Performance of Y‐Doped BiSe via Synergistic Effect of Vacancies and Band Engineering

Advanced Functional Materials, EarlyView.
Yttrium doping in Sb‐alloyed BiSe synergistically induces Bi vacancies and flattens conduction bands, simultaneously slashing lattice thermal conductivity by 50% and boosting the power factor. The optimized n‐type Bi0.64Sb0.3Y0.06Se delivers a peak zT of 0.91 at 393 K (average zT 0.76, 300–523 K) and an 8‐pair module with 4.6% conversion efficiency ...
Wenhao Xie, Fang Lyu, Xiaolong Sun, Chang Li, Xiaolu Zhu, Liangwei Hu, Qianfeng Ding, Wenjie Zhou, Muyang Huang, Yineng Gou, Yi Zhao, Han Tang, Wei Cao, Yue Hou, Yun Zheng, Ady Suwardi, Ziyu Wang   +16 more
wiley   +1 more source

Methodes of Contract Determination [PDF]

پژوهش های حقوق تطبیقی
In concluding a contract, sometimes we need to leave some of its provisions to the future and agree on the basic elements of the contract. Many lawyers consider this contract vague and even invalid.
Abdollah Rajabi, Seyed Ali Seyed Ahmadi Sajjadi   +1 more
doaj  

Charge Generation and Recombination Pathways in All‐Polymer Bulk Heterojunction Solar Cells

Advanced Functional Materials, EarlyView.
Multimodal spectroscopy and device analysis reveal how field‐dependent charge generation, transport limitations, and non‐geminate recombination govern performance losses in all polymer solar cells. The results identify the key processes controlling charge extraction and recombination, providing insights for the design of more efficient all‐polymer ...
Shahidul Alam, Wejdan Althobaiti, Safakath Karuthedath, Christopher E. Petoukhoff, Amr Dahman, Khawla Alkhezaim, Oleksandr Matiash, José P. Jurado, Mariia Ferree, Ning Su, Jacob Blaskovits, Denis Andrienko, Vladimir Dyakonov, Andreas Sperlich, Vojtech Nádaždy, Tobin J. Marks, Antonio Facchetti, Frédéric Laquai   +17 more
wiley   +1 more source

Experiences from Procurement of Integrated Bridge Maintenance in Sweden

European Journal of Transport and Infrastructure Research, 2009
The trend in many countries is to outsource maintenance with competitive tendering. The design of the tender is then a crucial issue. A new type of tendering contract, called "Integrated Bridge Maintenance", was introduced in one experimental area in ...
Hans-Åke Mattsson, Hans Lind
doaj   +1 more source

Sharing responsibility in disaster management policy

Progress in Disaster Science, 2020
The Sendai Framework for Disaster Risk Reduction delivers internationally agreed upon norms for disaster risk reduction, engendered in part through shared-responsibility, and subsequently adopted by Australia.
Cameron Atkinson, Steven Curnin
doaj   +1 more source

Acid Site Design for Low Hydration Proton Exchange Membranes

Advanced Functional Materials, EarlyView.
α‐CF2 substitution adjacent to sulfonic acid increases acid strength and enables efficient proton transport under low hydration conditions. This molecular design reduces the dependence of hydrocarbon proton exchange membranes on excessive water uptake, addressing a key limitation of conventional hydrocarbon PEMs while maintaining favorable conductivity
Ajay Kumar, Lorena Alzate‐Vargas, Mayra Rodriguez‐Pena, Douglas I. Kushner, Marina Pacheco, Panagiotis Bexis, Ahmet Kusoglu, Siddharth Komini Babu, Edward F. Holby, Jacob S. Spendelow, Eun Joo S. Park   +10 more
wiley   +1 more source

Toward a Less Incomplete Contract: Merging Smart Contracts and Esg Metrics Contracts

Tilburg Law Review
Growing attention to environmental, social, and governance (ESG) concerns has prompted companies to incorporate conditions and obligations related to ESG indicators into their contracts and other agreements.
Fernanda de Araujo Meirelles Magalhães, Bruno Vieira   +1 more
doaj   +1 more source

Causes of Errors in Construction Contract Documents in Southwestern, Nigeria

Journal of Construction Business and Management, 2017
The issue of continual poor project performance in the construction industry remains unresolved and there is need for improvement. In view of improving project performance, the study aims at investigating the frequent causes of errors in construction ...
Oluwaseun Dosumu, Godwin Idoro, Henry Onukwube   +2 more
doaj   +1 more source

Electrostatic Superlattices Beyond 1:1 Stoichiometry

Advanced Functional Materials, EarlyView.
Polymer‐mediated charge regulation drives two hierarchical routes to higher‐stoichiometry nanoparticle superlattices. Tuning the polymer's molecular weight promotes progressive interstitial filling, transforming ZnS into the fully occupied CaF2${\rm CaF}_2$ lattice. Exchanging polymer assignment between large and small nanoparticles instead breaks CsCl
Binay P. Nayak, Prapti Kakkar, Wesley P. Korba, Honghu Zhang, Wenjie Wang, Surya K. Mallapragada, Alex Travesset, David Vaknin   +7 more
wiley   +1 more source