Results 51 to 60 of about 72,152 (156)

Performance Evaluation of the Dual‐Frequency Ionospheric Free Combination on BDS‐3 Single Point Positioning Accuracy

Engineering Reports, Volume 7, Issue 7, July 2025.
Some stations have slightly larger errors in mid low latitude regions, while others have slightly smaller errors in high latitude regions. By comparing the B1C/B2a and B2b/B3I IFC SPP results of all 84 stations, it was found that the RMSE of all stations with B2b/B3I IFC was greater than that of B1C/B2a. ABSTRACT This article analyzes the BDS Phase III
Xingli Sun, Jinjie Yao
wiley   +1 more source

Overview of the WEEE Directive and Its Implementation in the Nordic Countries: National Realisations and Best Practices

Journal of Waste Management, Volume 2014, Issue 1, 2014., 2014
Electronic devices and mobile applications have become a part of everyday life. Fast technological progress and rapid product obsolescence have led to the rapid growth of waste electrical and electronic equipment (WEEE). Due to hazardous substances and also substantial amounts of valuable materials contained in electrical and electronic equipment, the ...
Jenni Ylä-Mella, Kari Poikela, Ulla Lehtinen, Pia Tanskanen, Elisabeth Román, Riitta L. Keiski, Eva Pongrácz, David Bolzonella   +7 more
wiley   +1 more source

Advancing Precise Orbit Determination and Precise Point Positioning of BDS-3 Satellites from B1IB3I to B1CB2a: Comparison and Analysis

Remote Sensing, 2023
The third generation of the Chinese BeiDou Navigation Satellite System (BDS-3) broadcasts new signals, i.e., B1C, B2a, and B2b, along with the legacy signals of BDS-2 B1I and B3I.
Chen Wang, Tengjie Luo, Shitong Chen, Pan Li   +3 more
doaj   +1 more source

Policy approaches to stimulate exports: The case of Georgia

Public Administration and Development, Volume 44, Issue 3, Page 150-156, August 2024.
Abstract This report examines exporters’ challenges and possible solutions for public intervention to promote foreign trade. Based on fieldwork conducted in Georgia, we explore which policy approaches can help to stimulate Georgian exports further. Our outcomes show that exporters face substantial barriers such as navigating complex trade regulations ...
Andreas Klasen, Tengiz Lomitashvili, Kristian Rosbach, Kiyoshi Taniguchi   +3 more
wiley   +1 more source

Effect of Stochastic Modeling for Inter-Frequency Biases of Receiver on BDS-3 Five-Frequency Undifferenced and Uncombined Precise Point Positioning

Remote Sensing, 2022
The third generation of the Beidou navigation satellite system (BDS-3) broadcasts navigation signals of five frequencies. Focusing on the deep integration of five-frequency signals, we applied the joint BDS-3 five-frequency undifferenced and uncombined ...
Yi Liu, Wei Zhou, Bing Ji, Deying Yu, Shaofeng Bian, Shouzhou Gu, Deyan Li   +6 more
doaj   +1 more source

Does intrinsic motivation or extrinsic pressure matter more? An exploratory study of small businesses going green and innovation

Business Strategy and the Environment, Volume 33, Issue 5, Page 3855-3886, July 2024.
Abstract Small firms may go green because of intrinsic motivation (to realise their green values) or extrinsic pressure (to satisfy the requirements of stakeholders). While the impacts of these two motivations on firms' green behaviours have been discussed in the literature, their influences on economic behaviours such as innovation remain unclear ...
Bach Nguyen, Nhung Vu
wiley   +1 more source

Safety and efficacy of a feed additive consisting of muramidase produced with Trichoderma reesei DSM 32338 (Balancius™) for laying hens (DSM nutritional products)

EFSA Journal, Volume 22, Issue 5, May 2024.
Abstract Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of muramidase produced with Trichoderma reesei DSM 32338 (Balancius™) as a feed additive for laying hens. The additive is already authorised as a zootechnical additive (functional group: other zootechnical additives) for ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Vasileios Bampidis, Giovanna Azimonti, Maria de Lourdes Bastos, Henrik Christensen, Birgit Dusemund, Mojca Durjava, Maryline Kouba, Marta López‐Alonso, Secundino López Puente, Francesca Marcon, Baltasar Mayo, Alena Pechová, Mariana Petkova, Fernando Ramos, Roberto Edoardo Villa, Ruud Woutersen, Andrey Yurkov, Montserrat Anguita, Matteo L. Innocenti, Fabiola Pizzo, Daniel Pagés Plaza, Elisa Pettenati, Jordi Ortuño   +23 more
wiley   +1 more source

Digital divides among microenterprises: Evidence from sub‐Saharan Africa

Journal of International Development, Volume 36, Issue 2, Page 1350-1380, March 2024.
Abstract This paper investigates digital inequalities in usage within African informal sectors. In particular, we examine whether the uneven digital diffusion is embedded in pre‐existing socio‐economic inequalities. After identifying three segments of informal firms, we rely on multivariate and decomposition analyses to identify predictors of usage of ...
Damien Girollet
wiley   +1 more source

Undifferenced precise time transfer with information‐constraints

IET Radar, Sonar &Navigation, Volume 18, Issue 3, Page 410-422, March 2024.
The undifferenced precise time transfer method based on information constraints could effectively be used to smooth the clock difference sequence of the receiver and the clock difference sequence of the time transfer link. This method can also be used to reflect the performance of atomic clocks at GPS stations and is better suited for the precise time ...
Mingyue Liu, Rui Tu, Qiushi Chen, Qi Li, Junmei Chen, Pengfei Zhang, Xiaochun Lu   +6 more
wiley   +1 more source

Public-Private Partnership: High-Impact Alliance for Sustainability Targets

Vestnik MGIMO-Universiteta, 2022
Efficient organization of public-private partnership (PPP) has become especially urgent amid the economic crisis caused by the COVID-19 pandemic and numerous sanctions imposed on the Russian Federation.
Y. I. Vaslavskiy
doaj   +1 more source