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Articles de revues sur le sujet « Carbon chain »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 27 juillet 2025

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1

Acquaye, Adolf, Andrea Genovese, John Barrett, and S. C. Lenny Koh. "Benchmarking carbon emissions performance in supply chains." Supply Chain Management: An International Journal 19, no. 3 (2014): 306–21. http://dx.doi.org/10.1108/scm-11-2013-0419.

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Purpose – The paper aims to develop a benchmarking framework to address issues such as supply chain complexity and visibility, geographical differences and non-standardized data, ensuring that the entire supply chain environmental impact (in terms of carbon) and resource use for all tiers, including domestic and import flows, are evaluated. Benchmarking has become an important issue in supply chain management practice. However, challenges such as supply chain complexity and visibility, geographical differences and non-standardized data have limited the development of approaches for evaluating

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Yue, Youfu, Junjun Hou, Nuoya Yue, and Haofan Wang. "Relational Global Value Chain Carbon Emissions and Their Network Structure Patterns: Evidence from China." Sustainability 16, no. 16 (2024): 6940. http://dx.doi.org/10.3390/su16166940.

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The structure of the network among firms participating in global value chains is an important factor in understanding the changes in China’s carbon emissions. This paper focuses on the interdependence between firms and the interconnected networks to which they belong, utilizing an inter-country input–output model that distinguishes between domestic-owned enterprises and foreign-invested enterprises for measurement purposes. By distinguishing between domestic and cross-border global value chains, we illustrate the carbon emission effects of relational global value chains and their network struc

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Li, Xueying, Ying Peng, and Jing Zhang. "A mathematical/physics carbon emission reduction strategy for building supply chain network based on carbon tax policy." Open Physics 15, no. 1 (2017): 97–107. http://dx.doi.org/10.1515/phys-2017-0011.

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AbstractUnder the background of a low carbon economy, this paper examines the impact of carbon tax policy on supply chain network emission reduction. The integer linear programming method is used to establish a supply chain network emission reduction such a model considers the cost of CO2emissions, and analyses the impact of different carbon price on cost and carbon emissions in supply chains. The results show that the implementation of a carbon tax policy can reduce CO2emissions in building supply chain, but the increase in carbon price does not produce a reduction effect, and may bring finan

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Wang, Michael, Bill Wang, and Ahmad Abareshi. "Blockchain Technology and Its Role in Enhancing Supply Chain Integration Capability and Reducing Carbon Emission: A Conceptual Framework." Sustainability 12, no. 24 (2020): 10550. http://dx.doi.org/10.3390/su122410550.

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Most current blockchain and carbon emission studies are from engineering and sciences disciplines. By incorporating blockchain technology into supply chain integration capabilities, the firms are be able to work collaboratively with each other to enhance the supply chain integration and simultaneously reduce the carbon emission in a supply chain. This paper presents a conceptual framework to understand the role of blockchain in a low carbon supply chain management. Applying the Socio-Technical Theory and Resource-Based View, the research propositions between blockchain, supply chain integratio

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Du, Li Juan, Ying Hua Zhang, and Mei Qing Du. "Low-Carbon Value Chain Construction for Machinery Manufacturing." Applied Mechanics and Materials 532 (February 2014): 640–43. http://dx.doi.org/10.4028/www.scientific.net/amm.532.640.

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With high correlative degree, machinery manufacturing industry contributes a lot to the other industries technology progress and sustainable development, so low carbon value chain construction for machinery manufacturing is of great meanings for the whole society. In this paper, a low-carbon value chain for machinery manufacturing is designed, besides traditional activities, low-carbon management, products usage and its end of life are included in support and primary activities in value chain, the value chain is characterized by seeking new low-carbon competitive advantages and increasing effe

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Song, Zhenjun, Xiji Shao, Wei Wu, et al. "Structures and Stabilities of Carbon Chain Clusters Influenced by Atomic Antimony." Molecules 28, no. 3 (2023): 1358. http://dx.doi.org/10.3390/molecules28031358.

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The C-C bond lengths of the linear magnetic neutral CnSb, CnSb+ cations and CnSb− anions are within 1.255–1.336 Å, which is typical for cumulene structures with moderately strong double-bonds. In this report, we found that the adiabatic ionization energy (IE) of CnSb decreased with n. When comparing the IE~n relationship of CnSb with that of pure Cn, we found that the latter exhibited a stair-step pattern (n ≥ 6), but the IE~n relationship of CnSb chains took the shape of a flat curve. The IEs of CnSb were lower than those of corresponding pure carbon chains. Different from pure carbon chains,

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Zhao, Changping, Bill Wang, Maliyamu Saidula, Yu Gong, and Mohammed Alharithi. "Digitally-Enabled Carbon Reduction in Plastics Supply Chain Based on Literature Review Method." Sustainability 17, no. 6 (2025): 2472. https://doi.org/10.3390/su17062472.

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The issue of carbon emissions in the plastic supply chain has attracted global attention, and relevant countries have formulated and introduced economic policies and measures to reduce plastic carbon emissions. To solve this dilemma, some scholars have proposed the path of empowering the plastic supply chain through digital technology to achieve carbon reduction. However, there are few research results on the mechanism of digital technology empowering the carbon reduction of the plastic supply chain. This paper analyzes the results of carbon reduction research in digitally enabled supply chain

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Li, Hui, Rou Li, Meng Shang, Yu Liu, and Dandan Su. "Cooperative decisions of competitive supply chains considering carbon trading mechanism." International Journal of Low-Carbon Technologies 17 (December 2, 2021): 102–17. http://dx.doi.org/10.1093/ijlct/ctab085.

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Abstract Carbon emissions trading policy is a market mechanism which promotes global greenhouse gas emissions reduction and reduces global carbon dioxide emissions. The emissions reduction in the supply chain operation has become a hot issue in supply chain management. Thus, this paper studies the optimal cap setting and pricing in chain-to-chain system under carbon emissions trading mechanism. Based on the double decentralized scenario, the five different cooperation models are established by introducing the structural cooperation and the contractual cooperation (the wholesale price contract)

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Cao, Cui Zhen, and Guo Huao Zhao. "Decision-Making Model of Network Optimization in Green Supply Chain." Advanced Materials Research 962-965 (June 2014): 2277–82. http://dx.doi.org/10.4028/www.scientific.net/amr.962-965.2277.

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Network optimization design of green supply chains not only decides the structure and value of supply chains themselves, but also has great impact on the healthy, low-carbon development of whole society’s logistics system and transportation system. Based on carbon footprint theory, this paper elaborates the influence of carbon emission on overall value of supply chain. Penalty function coefficient is introduced to covert a multi-objective optimization problem to a single objective one; three objects, namely, profitability, service level and environmental protection, are thus coordinated. A net

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Qian, Cheng, Shenghui Wang, Xiaohong Liu, and Xueying Zhang. "Low-Carbon Initiatives of Logistics Service Providers: The Perspective of Supply Chain Integration." Sustainability 11, no. 12 (2019): 3233. http://dx.doi.org/10.3390/su11123233.

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Logistics service providers (LSPs) are under tremendous pressure in the fight against global climate change. While existing research has examined the operational importance of LSPs in decarbonizing supply chains, the strategic perspective of LSPs on low carbon supply chains has not received enough attention. Motivated by the evolving role of LSPs from a service provider to a resource integrator in the supply chain, drawing on the relational view of inter-organizational competitive advantage, this paper focuses on LSPs’ low-carbon supply chain integration (SCI) and empirically investigates its

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Zhao, Biying, Licheng Sun, and Siying Gao. "Effects of Government Regulations on Under-Reporting of Carbon Emission Transfers by Enterprises in Supply Chains." Sustainability 14, no. 15 (2022): 9269. http://dx.doi.org/10.3390/su14159269.

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In low-carbon environments, asymmetric carbon information causes the enterprises in a supply chain to face the risk of misstatements about carbon emissions. Such misstatements could affect the decisions about carbon emission transfers in the supply chain. To optimize carbon emission transfers among supply chain enterprises, this study formulates a supplier-led Stackelberg game model incorporating the government’s initial carbon emission allowances and fines. The study also examines the mechanism of the behaviors of enterprises in low-carbon supply chains, the proportions of initial quotas, the

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Dwi Larasati, Putri, Cucuk Nur Rosyidi, and Pringgo Widyo Laksono. "A Location-Routing-Inventory (LRI) Model in Cold Chain Logistic Considering Carbon Emissions." E3S Web of Conferences 465 (2023): 02013. http://dx.doi.org/10.1051/e3sconf/202346502013.

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Location-Routing-Inventory (LRI) model is used in logistic chain to select the location of facilities (distribution center, warehouse, or store), the transportation routes between facilities, and the allocation of inventory stored in each facility. This paper proposes developing the LRI model by considering carbon emissions through carbon cap & trade policy, carbon cap policy, and carbon tax policy. Cold chain logistics is a type of logistics chains that keeps perishable products in cold temperatures and produces higher carbon emissions than conventional logistics chain. The development of

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Wang, Weixin, Shizhen Wang, and Jiafu Su. "Integrated Production and Transportation Scheduling in E-Commerce Supply Chain with Carbon Emission Constraints." Journal of Theoretical and Applied Electronic Commerce Research 16, no. 7 (2021): 2554–70. http://dx.doi.org/10.3390/jtaer16070140.

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Carbon emission constraints and trading policies in e-commerce environments have brought huge challenges to the operation of supply chain enterprises. In order to ensure the good operation of the e-commerce supply chain in a low-carbon environment, a supply chain scheduling optimization method based on integration of production and transportation with carbon emission constraints is proposed; we use it to analyze the impact of centralized decision-making mode and decentralized decision-making mode on supply chain scheduling and establish a scheduling optimization model that aims at optimal carb

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Payod, Renebeth, Aliaxandr L. Pushkarchuk, Dominik L. Michels, Dmitry A. Lyakhov, and Vasil Saroka. "Comparative analysis of absorption resonances between carbynes and cyclo[n]carbons." J. Phys.: Condens. Matter 36 (July 10, 2024): 425302. https://doi.org/10.5281/zenodo.15034059.

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Two approaches are presented here to analyze the absorption resonances between carbynes and cyclo[n]carbons, namely the analytical tight-binding model to calculate the optical selection rules of cumulenic atomic rings and chains and the <em>ab initio</em> time-dependent density functional theory for the optical investigation of polyynic carbon ring and chains. The optical absorption spectra of the carbon ring match that of the finite chain when their eigen energies align following the Nring=2Nchain+2 rule, which states that the number of atoms in an atomic ring Nring&n

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Sakai, Nami, and Satoshi Yamamoto. "Warm Carbon-Chain Chemistry." Chemical Reviews 113, no. 12 (2013): 8981–9015. http://dx.doi.org/10.1021/cr4001308.

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Uppenbrink, J. "CHEMISTRY: Carbon Chain Gangs." Science 287, no. 5457 (2000): 1365c—1365. http://dx.doi.org/10.1126/science.287.5457.1365c.

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Shen, Zizhen, Gennian Tang, Zhenpao Lin, Jinggang Wang, and Yueting Gao. "Mechanism of strategic remoulding of high-dimensional industrial eco-economy and the reconstruction of carbon neutral industrial chain." Journal of Infrastructure, Policy and Development 8, no. 6 (2024): 4519. http://dx.doi.org/10.24294/jipd.v8i6.4519.

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Considerable changes in the international society, fierce international competition and unpredictable economic changes are currently observed. Since then, the epidemic has had a far-reaching impact, and many industrial and supply chains have suffered from ‘broken chains’, ‘blocked chains’ and ‘poor chains’. The European Union (EU) has also sounded the alarm on China’s ‘card neck’ restrictions and ‘entity list’. Therefore, pursuing the integration of dual carbon landscape planning and industrial chain and addressing the key high-dimensional ecological economy ‘neck-choking’ problem path have be

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Wang, Lijun, Liping Zhou, Xuefeng Wang, and Wenlong You. "Exploring the Odd–Even Effect, Current Stabilization, and Negative Differential Resistance in Carbon-Chain-Based Molecular Devices." Electronics 13, no. 9 (2024): 1764. http://dx.doi.org/10.3390/electronics13091764.

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The transport properties of molecular devices based on carbon chains are systematically investigated using a combination of non-equilibrium Green’s function (NEGF) and density functional theory (DFT) first-principle methods. In single-carbon-chain molecular devices, a distinct even–odd behavior of the current emerges, primarily influenced by the density of states (DOS) within the chain channel. Additionally, linear, monotonic currents exhibit Ohmic contact characteristics. In ladder-shaped carbon-chain molecular devices, a notable current stabilization behavior is observed, suggesting their po

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Li, Changhong, Jiani Gao, Jiaqi Guo, and Jialuo Wang. "Low-Carbon Supply Chain Decisions Considering Carbon Emissions Right Pledge Financing in Different Power Structures." Energies 15, no. 15 (2022): 5721. http://dx.doi.org/10.3390/en15155721.

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While carbon emissions reduction brings about environmental benefits, it can also create financial pressure on many manufacturing enterprises. Many manufacturing enterprises have begun to pledge their own carbon emissions right quotas for financing and the funds from this financing are being used to implement energy savings and emissions reduction strategies. To investigate the impact of carbon emissions right pledge financing on supply chains, this study constructed a two-echelon low-carbon supply chain, which consisted of a capital-constrained manufacturer and a retailer. The manufacturer in

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Park, Yong Shin, Joseph Szmerekovsky, and Alan Dybing. "Optimal Location of Biogas Plants in Supply Chains under Carbon Effects: Insight from a Case Study on Animal Manure in North Dakota." Journal of Advanced Transportation 2019 (April 7, 2019): 1–13. http://dx.doi.org/10.1155/2019/5978753.

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Faced with increasing concerns over the negative environmental impact due to human and industrial activities, biomass industry practitioners and policy makers have great interest in green supply chains to reduce carbon emissions from supply chain activities. There are many studies which model the biomass supply chain and its environmental impact. However, animal waste sourced biogas supply chain has not received much attention in the literature. Biogas from animal manure not only provides energy efficiency, but also minimizes carbon emissions compared to existing biomass products. Therefore, t

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Zhang, Rui, Tingting Yu, and Guangbin Dong. "Rhodium catalyzed tunable amide homologation through a hook-and-slide strategy." Science 382, no. 6673 (2023): 951–57. http://dx.doi.org/10.1126/science.adk1001.

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Preparation of diverse homologs from lead compounds has been a common and important practice in medicinal chemistry. However, homologation of carboxylic acid derivatives, particularly amides, remains challenging. Here we report a hook-and-slide strategy for homologation of tertiary amides with tunable lengths of the inserted carbon chain. Alkylation at the α-position of the amide (hook) is followed by highly selective branched-to-linear isomerization (slide) to effect amide migration to the end of the newly introduced alkyl chain; thus, the choice of alkylation reagent sets the homologation le

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Mesrzade, Pegah, Farzad Dehghanian, and Yousef Ghiami. "A Bilevel Model for Carbon Pricing in a Green Supply Chain Considering Price and Carbon-Sensitive Demand." Sustainability 15, no. 24 (2023): 16563. http://dx.doi.org/10.3390/su152416563.

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In today’s industrial landscape, there is a mounting urgency to mitigate the adverse environmental impacts of emissions stemming from supply chain operations. On one front, policy-makers impose increasingly stringent emission reduction targets for supply chains, while on another front, consumers express a heightened preference for products and services with reduced carbon footprints. This study addresses the challenge of determining an optimal carbon pricing strategy by integrating the imperatives of a green supply chain with carbon taxation policies. To this end, we introduce a bi-level mixed

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Yao, Qi, Yanhui Li, and Huan Gao. "Optimizing low-carbon strategies in dual-channel supply chains: A quantum game perspective." PLOS One 20, no. 6 (2025): e0323564. https://doi.org/10.1371/journal.pone.0323564.

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The carbon emission management and resource allocation optimization of dual-channel supply chain are of great significance for promoting low-carbon economy and improving supply chain efficiency. In contrast to conventional game theory, Quantum game theory can describe the cooperation and competition of online and offline channels more flexibly through quantum entanglement, so as to overcome the limitations of traditional game theory. We study the application of quantum game theory in low-carbon economy and pricing strategies, and explore how to optimize pricing strategies and improve the low-c

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Cherniak, Robert, Eric B. O’Neill, and Shuqun Sheng. "Assimilation of Xylose, Mannose, and Mannitol for Synthesis of Glucuronoxylomannan of Cryptococcus neoformansDetermined by 13C Nuclear Magnetic Resonance Spectroscopy." Infection and Immunity 66, no. 6 (1998): 2996–98. http://dx.doi.org/10.1128/iai.66.6.2996-2998.1998.

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ABSTRACT Cryptococcus neoformans NIH 409 was cultured in a defined medium containing d-[1-13C]xylose (Xyl), d-[1-13C]mannose (Man), ord-[1-13C]mannitol as the sole carbon source. The distribution of 13C in the Man, Xyl, glucuronic acid (GlcA), and O-acetyl constituents of native and de-O-acetylated glucuronoxylomannan (GXM) was determined by one-dimensional13C nuclear magnetic resonance spectroscopy. The carbon chain of Man was incorporated intact into GXM since13C was observed only in carbon 1 of Man, GlcA, and Xyl. The carbon chain of mannitol was incorporated intact into GXM since13C was ob

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Wu, Hanbo, Yaxin Sun, Yutong Su, Ming Chen, Hongxia Zhao, and Qi Li. "Which Is the Best Supply Chain Policy: Carbon Tax, or a Low-Carbon Subsidy?" Sustainability 14, no. 10 (2022): 6312. http://dx.doi.org/10.3390/su14106312.

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The low-carbon supply chain is key to promoting sustainable development and solving environmental pollution. Government policies related to lowering carbon emissions deeply affect supply chains. This paper builds a supply chain decision-making model under three different regulatory policies: a pure carbon tax, a pure low-carbon subsidy, and a mixed policy with both a carbon tax and a low-carbon subsidy, then compares and analyzes the impacts of these three different regulatory policies on carbon emissions, manufacturer and retailer income, and marginal profit in order to determine the best cou

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Qiao, Baisen. "Regional Carbon Emissions and Downstream and Upstream Supply Chain Decisions for Firms." Highlights in Business, Economics and Management 8 (April 11, 2023): 14–32. http://dx.doi.org/10.54097/hbem.v8i.7158.

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The supply chain is essential for comprehending the financial behavior and decision-making of firms. Under the macro trend of reducing carbon emissions, there is a close connection between regional carbon emissions and corporate supply chain decisions. However, there exist few researches on the relationship between "regional carbon emissions" and "downstream and upstream supply chain concentration of firms". In view of this, this paper empirically analyses the impact of regional carbon emissions on the decision of downstream and upstream concentrations of firms, using the panel statistics of A

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Pan, JiaLiang, Chui-Yu Chiu, Kun-Shan Wu, Hsiu-Feng Yen, and Yen-Wen Wang. "Sustainable Production–Inventory Model in Technical Cooperation on Investment to Reduce Carbon Emissions." Processes 8, no. 11 (2020): 1438. http://dx.doi.org/10.3390/pr8111438.

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Carbon cap-and-trade and carbon offsets are common and important carbon emission reduction policies in many countries. In addition, carbon emissions from business activities can be effectively reduced through specific capital investments in green technologies. Nevertheless, such capital investments are costly and not all enterprises can afford these investments. Therefore, if all members of a supply chain agree to share the investments in the facilities, the supply chain can reduce carbon emissions and generate more profit. Under carbon cap-and-trade and carbon tax policies, this study propose

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Peng, Ling, Zhen Fan, and Xuming Zhang. "Consumer Orientation and Market-Driven Strategies for Promoting Low-Carbon Innovation in Supply Chains: Pathways to Sustainable Development." Sustainability 17, no. 3 (2025): 1128. https://doi.org/10.3390/su17031128.

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As environmental challenges become increasingly pressing, companies are integrating low-carbon innovations into supply chain management to achieve economic performance while promoting environmental sustainability and social responsibility. This study explores how low-carbon innovation in supply chains can be driven by consumer orientation and market-driven strategies, contributing to sustainable development. Using Stackelberg game theory, the study develops centralized and decentralized decision-making models and solves them through differential game methods. Numerical simulations are employed

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Nechetnyy, Nikita, Zaid Ajzan Balassem, Yerragudipadu subbarayudu, et al. "Analysis of Carbon Footprint Reduction in Supply chains using Blockchains." E3S Web of Conferences 581 (2024): 01017. http://dx.doi.org/10.1051/e3sconf/202458101017.

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Integrating carbon footprint reduction into contemporary supply chain networks necessitates strong cybersecurity and data integrity protocols to safeguard communication infrastructures against threats. This study examines the use of blockchain technology as a cybersecurity and traceability framework in supply chain systems, using simulated data that represents logistical information, shipping quantities, carbon emissions, and blockchain transactions. An investigation indicates varied carbon-emitting mechanisms, with air freight exhibiting the greatest emissions and rail transit the lowest. Tra

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Luo, Zheng, Xiaojie Lin, Yanling Wu, and Wei Zhong. "Role of energy value chain in carbon neutrality: A review." Clean Energy Science and Technology 2, no. 4 (2024): 192. http://dx.doi.org/10.18686/cest.v2i4.192.

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Value chain analysis is an important tool for optimizing operations and decision-making in enterprises. As the concept of sustainable development gains recognition worldwide, research on value chains is increasingly focused on sustainability. Traditionally, energy management and value management have operated in parallel with limited intersections. However, after the 2015 Paris Agreement set the goal of achieving net-zero emissions, carbon management has become integral to national strategies, necessitating a re-evaluation of traditional value chains. In this paper, the “energy value chain” is

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Belanzoni, Paola, Nazzareno Re, and Antonio Sgamellotti. "Carbon chain bridged metals: a theoretical approach. Odd chains." Journal of Organometallic Chemistry 656, no. 1-2 (2002): 156–67. http://dx.doi.org/10.1016/s0022-328x(02)01579-6.

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Zhang, Ziyuan, and Liying Yu. "Dynamic Optimization and Coordination of Cooperative Emission Reduction in a Dual-Channel Supply Chain Considering Reference Low-Carbon Effect and Low-Carbon Goodwill." International Journal of Environmental Research and Public Health 18, no. 2 (2021): 539. http://dx.doi.org/10.3390/ijerph18020539.

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Although the issue of cooperative emission reduction in supply chains has been extensively studied, there is little literature that considers the impact of consumers’ reference low-carbon effect and product low-carbon goodwill on their purchasing behavior in the issue of dual-channel supply chain cooperative emission reduction. In order to explore the impact of consumers’ reference low-carbon effect and product low-carbon goodwill on the balanced emission reduction decisions and profit of dual-channel supply chain members, we establish a dual-channel supply chain emission reduction dynamic opt

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Zhang, Ziyuan, and Liying Yu. "Dynamic Optimization and Coordination of Cooperative Emission Reduction in a Dual-Channel Supply Chain Considering Reference Low-Carbon Effect and Low-Carbon Goodwill." International Journal of Environmental Research and Public Health 18, no. 2 (2021): 539. http://dx.doi.org/10.3390/ijerph18020539.

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Although the issue of cooperative emission reduction in supply chains has been extensively studied, there is little literature that considers the impact of consumers’ reference low-carbon effect and product low-carbon goodwill on their purchasing behavior in the issue of dual-channel supply chain cooperative emission reduction. In order to explore the impact of consumers’ reference low-carbon effect and product low-carbon goodwill on the balanced emission reduction decisions and profit of dual-channel supply chain members, we establish a dual-channel supply chain emission reduction dynamic opt

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Deng, Guangyao, Siqian Hou, and Yuting Liu. "Study on the Impact of National Value Chain Embeddings on the Embodied Carbon Emissions of Chinese Provinces." Sustainability 16, no. 23 (2024): 10186. http://dx.doi.org/10.3390/su162310186.

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Accelerating the construction and optimization of national value chains is of great significance to reducing both pollution and carbon emissions and promoting green economic growth. In accordance with the input–output table and carbon emission statistics of China in 2012, 2015, and 2017, in this paper, we use the total trade decomposition method and the value chain decomposition method to decompose the embodied carbon emissions and the embeddedness of national value chains. Subsequently, we empirically study, for the first time, the impact of the degree of domestic value chain embedding on imp

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Li, Wan-Shan, Zeng Luo, Yan-Lan Zhu, Yi Yu, Jun Wu, and Li Shen. "A Polyol-Polyol Super-Carbon-Chain Compound Containing Thirty-Six Carbon Stereocenters from the Dinoflagellate Amphidinium gibbosum: Absolute Configuration and Multi-Segment Modification." Marine Drugs 18, no. 12 (2020): 590. http://dx.doi.org/10.3390/md18120590.

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A super-carbon-chain compound, named gibbosol C, featuring a polyoxygenated C70-linear-carbon-chain backbone encompassing two acyclic polyol chains, was obtained from the South China Sea dinoflagellate Amphidinium gibbosum. Its planar structure was elucidated by extensive NMR investigations, whereas its absolute configurations, featuring the presence of 36 carbon stereocenters and 30 hydroxy groups, were successfully established by comparison of NMR data of the ozonolyzed products with those of gibbosol A, combined with J-based configuration analysis, Kishi’s universal NMR database, and the mo

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Wu, Jiaying. "Study on Supply Chain Carbon Emission Reduction Measures." Journal of Innovation and Development 4, no. 2 (2023): 31–33. http://dx.doi.org/10.54097/jid.v4i2.11859.

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A comparative study of three carbon reduction measures in the supply chain, namely carbon tax, government subsidies and carbon trading, is conducted to analyse their advantages and disadvantages, the level of emission reduction and the impacts on supply chain members. Further, through real-life supply chain scenarios such as manufacturing and new energy vehicles, we focus on analysing the emission reduction effects of different government subsidies for manufacturers and retailers. The results show that carbon tax is advantageous in driving economic growth. Different government subsidies stimul

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Balakrishnan, AbhayRam, R. Shankar, and S. Vijayakumar. "Reduced bond length alternation and helical molecular orbitals in donor and acceptor substituted linear carbon chains." Journal of Theoretical and Computational Chemistry 17, no. 08 (2018): 1850049. http://dx.doi.org/10.1142/s0219633618500499.

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Increasing chain length and end group substitution of polyynes play a crucial role in molecular electronics and nanomaterials. The studies on linear carbon chains are lesser when compared to other carbon allotropes like graphene, fullerenes, nanotube, etc. This prompted us to study the linear carbon chains of different lengths and substitutions. The electronic and optical properties of X–C[Formula: see text]–X ([Formula: see text]–15 and [Formula: see text], NH2, CN, OH) molecules have been studied by using CAM-B3LYP/6-31G* level of theory of DFT methods. Linear carbon chains with odd values o

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Song, Wen, Ai Ren, Xiaodong Li, and Qi Li. "The Orchestrating Role of Carbon Subsidies in a Capital-Constrained Supply Chain." Mathematical Problems in Engineering 2021 (December 18, 2021): 1–13. http://dx.doi.org/10.1155/2021/8920624.

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In this paper, we investigate the role of carbon subsidies in a capital-constrained supply chain. We analyze two green technology investment structures in such supply chains: one where the manufacturer determines the optimal carbon emission abatement level (MI-structure) and one where the retailer determines the optimal carbon emission abatement level (RI-structure). As the leader (the powerful participant or the first mover in a supply chain), the manufacturer may choose the investment structure that is most favorable to them. Our major findings are as follows: (1) carbon subsidies can improv

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Che, Cheng, Huixian Zheng, Xin Geng, Yi Chen, and Xiaoguang Zhang. "Research on Carbon Emission Reduction Investment Decision of Power Energy Supply Chain—Based on the Analysis of Carbon Trading and Carbon Subsidy Policies." Energies 15, no. 17 (2022): 6151. http://dx.doi.org/10.3390/en15176151.

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This study examines the carbon reduction investment decisions of the electric power energy supply chain considering carbon trading and carbon subsidy policies in China’s “dual carbon” context. By building a three-level supply chain system including electric power producers, retailers, and consumers, we discuss the optimal decision-making problem of the supply chain for three models of decentralized supply chain decision making without government subsidies, centralized supply chain decision making with government subsidies, and centralized supply chain decision making with government subsidies

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Ye, Anning, Yuguo Ji, and Min Zhang. "Research on Carbon Emissions of Industrial Clusters in China." Academic Journal of Science and Technology 3, no. 2 (2022): 65–70. http://dx.doi.org/10.54097/ajst.v3i2.2094.

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At present, the global warming problem is becoming more and more serious, and effective carbon emission reduction is urgent, and the cooperation between industries within a specific supply chain can provide a new method to reduce emissions. Whith 2017 year as the research period, 30 industrial sectors in China as the research object, using the new method proposed by Kanemoto et al. to identify high carbon emission industrial clusters. Combined with modified normalized cut function, we find out high carbon emission industrial clusters among 30 industrial sectors from the supply chain perspectiv

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Dania, Wike Agustin Prima, Edria Anniar Nurfitriani, and Riska Septifani. "Value Chain Analysis of Jackfruit Chips in Green Supply Chain Management Perspective Using the Value Chain Operations Reference Method." Industria: Jurnal Teknologi dan Manajemen Agroindustri 10, no. 2 (2021): 125–34. http://dx.doi.org/10.21776/ub.industria.2021.010.02.4.

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A green supply chain is a concept that integrates environmental aspects in the supply chain system. This study aims to identify the value chain stages affecting the environment and to determine the level of economic impact on the jackfruit chips value chain at CV XYZ. This research used Value Chain Operations Reference (VCOR) method to analyze value chain activities. Carbon emissions and total costs were calculated at the build, acquire, and fulfill stages from suppliers and enterprises. The analysis results showed that the highest environmental impact was at the build stage which produces car

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Lee, Doo-Ho, and Jong-Chul Yoon. "Decisions on Pricing, Sustainability Effort, and Carbon Cap under Wholesale Price and Cost-Sharing Contracts." Sustainability 14, no. 8 (2022): 4863. http://dx.doi.org/10.3390/su14084863.

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Rapid economic growth and industrialization have brought material abundance and convenience, but also social and environmental problems such as global warming, climate change, and ozone depletion. For this reason, the public and governments have continued to make efforts to reduce carbon oxide emissions worldwide over the past few decades. To achieve this mission, cap-and-trade regulations have been introduced as one of the most effective market-based mechanisms to control carbon emissions. Accordingly, sustainability efforts, including the development of green products and innovating manufact

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McLean, B. M. L., R. W. Mayes, and F. D. DeB Hovell. "The Use of N-alkanes for Estimating Intake and Passage Rate in Horses." Proceedings of the British Society of Animal Science 1996 (March 1996): 98. http://dx.doi.org/10.1017/s1752756200592977.

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Alkanes occur naturally in all plants, although forage crops tend to have higher alkane contents than cereals. N-alkanes have odd-numbered carbon chains. They are ideal for use as markers in feed trials, because, they are inert, indigestible and naturally occurring, and can be recovered in animal faeces. Synthetic alkanes (even-numbered carbon chains) are available commercially and can also used as external markers. Dove and Mayes (1991) cite evidence indicating that faecal recovery of alkanes in ruminants increases with increasing carbon-chain length. Thus the alkane “pairs” (e.g. C35 & C

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McLean, B. M. L., R. W. Mayes, and F. D. DeB Hovell. "The Use of N-alkanes for Estimating Intake and Passage Rate in Horses." Proceedings of the British Society of Animal Science 1996 (March 1996): 98. http://dx.doi.org/10.1017/s0308229600030683.

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Alkanes occur naturally in all plants, although forage crops tend to have higher alkane contents than cereals. N-alkanes have odd-numbered carbon chains. They are ideal for use as markers in feed trials, because, they are inert, indigestible and naturally occurring, and can be recovered in animal faeces. Synthetic alkanes (even-numbered carbon chains) are available commercially and can also used as external markers. Dove and Mayes (1991) cite evidence indicating that faecal recovery of alkanes in ruminants increases with increasing carbon-chain length. Thus the alkane “pairs” (e.g. C35 & C

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Chen, Xiaobo, Jiayue Chen, Bing Yan, et al. "Structural basis for the broad substrate specificity of two acyl-CoA dehydrogenases FadE5 from mycobacteria." Proceedings of the National Academy of Sciences 117, no. 28 (2020): 16324–32. http://dx.doi.org/10.1073/pnas.2002835117.

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FadE, an acyl-CoA dehydrogenase, introduces unsaturation to carbon chains in lipid metabolism pathways. Here, we report that FadE5 fromMycobacterium tuberculosis(MtbFadE5) andMycobacterium smegmatis(MsFadE5) play roles in drug resistance and exhibit broad specificity for linear acyl-CoA substrates but have a preference for those with long carbon chains. Here, the structures ofMsFadE5 andMtbFadE5, in the presence and absence of substrates, have been determined. These reveal the molecular basis for the broad substrate specificity of these enzymes. FadE5 interacts with the CoA region of the subst

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Hua, Zhao, Jian Zhang, Yuejun Zhu, Bo Huang, Qingyuan Chen, and Wanfen Pu. "Viscosity Reduction Behavior of Carbon Nanotube Viscosity Reducers with Different Molecular Structures at the Oil–Water Interface: Experimental Study and Molecular Dynamics Simulation." Energies 17, no. 11 (2024): 2564. http://dx.doi.org/10.3390/en17112564.

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Effectively enhancing oil recovery can be achieved by reducing the viscosity of crude oil. Therefore, this paper investigated the viscosity reduction behavior of carbon nanotube viscosity reducers with different molecular structures at the oil–water interface, aiming to guide the synthesis of efficient viscosity reducers based on molecular structure. This study selected carbon nanotubes with different functional groups (NH2-CNT, OH-CNT, and COOH-CNT) for research, and carbon nanotubes with varying carbon chain lengths were synthesized. These were then combined with Tween 80 to form a nanofluid

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Song, Xiangyuan, Wenzhong Ma, Peisen Peng, et al. "Magnetically Grafted Carbon Nanotubes Synthesis and Its Oriented Nanochannels Construction in the Poly(Vinylidene Fluoride) (PVDF) Ultrafiltration Membranes." Separations 10, no. 4 (2023): 249. http://dx.doi.org/10.3390/separations10040249.

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Carbon nanotubes (CNTs) with hollow nanochannels have attracted much attention in preparing high-performance water treatment membranes. In this paper, the grafting polymer chains, including alkynyl terminated poly(methyl methacrylate) methacrylate (PMMA) single chain and PMMA-b-poly (ethylene glycol) methacrylate [P(PEGMA)] diblock molecular chains, were synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization. A UV-induced click reaction was used to graft different linear polymers onto the surface of magnetic thiol-functionalized carbon nanotubes (mCNTs-SH). The p

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Olmedo, Andrés, René Ullrich, Martin Hofrichter, José C. del Río, Ángel T. Martínez, and Ana Gutiérrez. "Novel Fatty Acid Chain-Shortening by Fungal Peroxygenases Yielding 2C-Shorter Dicarboxylic Acids." Antioxidants 11, no. 4 (2022): 744. http://dx.doi.org/10.3390/antiox11040744.

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Unspecific peroxygenases (UPOs), the extracellular enzymes capable of oxygenating a potpourri of aliphatic and aromatic substrates with a peroxide as co-substrate, come out with a new reaction: carbon-chain shortening during the conversion of fatty acids with the well-known UPOs from Coprinopsis cinerea (rCciUPO) and Cyclocybe (Agrocybe) aegerita (AaeUPO). Although a pathway (Cα-oxidation) for shortening the hydrocarbon chain of saturated fatty acids has already been reported for the UPO from Marasmius rotula (MroUPO), it turned out that rCciUPO and AaeUPO shorten the chain length of both satu

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Wong, C. H., E. A. Buntov, W. S. Yip, S. To, M. B. Guseva, and A. F. Zatsepin. "Thermal Disorder in Finite-Length Carbon Nanowire." International Journal of Molecular Sciences 24, no. 9 (2023): 8149. http://dx.doi.org/10.3390/ijms24098149.

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Enhancement in chemisorption is one of the active research areas in carbon materials. To remedy the thermally degraded chemisorption occurring at high temperatures, we report a comprehensive study of kink structures in free-standing monoatomic carbon nanowires upon heating. Our Monte Carlo simulation considers multi-monoatomic carbon chains laterally interacting by van der Waals forces. Our study reveals that carbon nanowires maintain their linearity regardless of chain length at low temperatures, but this is not the case at high temperatures. Disordered kink structure is observed in short car

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Fu, Min, Wensong Wu, Lixin Tian, Zaili Zhen, and Jing Ye. "Analysis of Emission Reduction Mechanism of High-Tiered Carbon Tax under Green and Low Carbon Behavior." Energies 16, no. 22 (2023): 7555. http://dx.doi.org/10.3390/en16227555.

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This article studies the emission reduction mechanism of high-tiered carbon taxes under green and low-carbon behavior in single and two-stage supply chains. First, based on the Cournot game model, it explores the impact of high-tiered carbon tax policies on supply chain carbon reduction decisions in the green exchange market. By analyzing the effects of implementing a high-tiered carbon tax policy, the basic characteristics of its implementation are identified, and the advantages of a high-tiered carbon tax compared to a unified carbon tax are summarized. Second, it establishes a carbon reduct

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