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2024–2025 Reviewers
Pilla, Srikanth
This study develops deep learning (DL) long–short-term memory (LSTM) models to predict tailpipe nitrogen oxides (NOx) emissions using real-driving on-road data from a heavy-duty Class 8 truck. The dataset comprises over 4 million data points collected across 11,000 km of driving under diverse road, weather, and load conditions. The effects of dataset size, model complexity, and input feature set on model performance are investigated, with the largest training dataset containing around 3.5 million data points and the most complex model consisting of over 0.5 million parameters. Results show that a large and diverse training dataset is essential for achieving accurate prediction of both instantaneous and cumulative NOx emissions. Increasing model complexity only enhances model performance to a certain extent, depending on the size of the training dataset. The best-performing model developed in this study achieves an R2 higher than 0.9 for instantaneous NOx emissions and less than a 2
Shahpouri, SaeidJiang, LuoKoch, Charles RobertShahbakhti, Mahdi
This information report covers all known aircraft with respect to deicing operations, especially with regard to OEM pressure and temperature limitations on the airframe. It provides data for airlines/operators on compliance with OEM limits and confirms that OEM limits are not exceeded during deicing operations.
G-12M Methods Committee
This SAE AIR covers Forced Air technology including: reference material, equipment, safety, operation, and methodology. It is intended to provide pressure and temperature (temps pages 26 & 31) information and minimum safety guidelines regarding use of equipment to remove frozen contaminants related to: i) Forced air ii) Forced air/fluid iii) Deicing fluid
G-12M Methods Committee
This SAE Standard defines the method for deriving and verifying the peening intensity exerted onto a part surface during shot peening or other surface enhancement processes.
Surface Enhancement Committee
Aircraft operations during landing or takeoff depend strongly on runway surface conditions. Safe runway operations depend on the tire-to-runway frictional force and the drag offered by the aircraft. In the present research article, a methodology is developed to estimate the braking friction coefficient for varied runway conditions accurately in real-time. To this end, the extended Kalman filtering technique (EKF) is applied to sensor-measured data using the on-ground mathematical model of aircraft and wheel dynamics. The aircraft velocity and wheel angular velocity are formulated as system states, and the friction coefficient is estimated as an augmented state. The relation between the friction coefficient and wheel slip ratio is established using both simulated and actual ground roll data. Also, the technique is evaluated with the simulated data as well as real aircraft taxi data. The accuracy of friction estimation, with and without the measurement of normal reaction force on the
T.K., Khadeeja NusrathSingh, Jatinder
This SAE Recommended Practice is derived from the FMVSS 105 vehicle test and applies to two-axle multipurpose passenger vehicles, trucks, and buses with a GVWR above 4540 kg (10000 pounds) equipped with hydraulic service brakes. There are two main test sequences: the Development Test Sequence for generic test conditions when not all information is available or when an assessment of brake output at different inputs is required, and the FMVSS Test Sequence when vehicle parameters for brake pressure as a function of brake pedal input force and vehicle-specific loading and brake distribution are available. The test sequences are derived from the Federal Motor Vehicle Safety Standard 105 (and 121 for optional sections) as single-ended inertia-dynamometer test procedures when using the appropriate brake hardware and test parameters. This recommended practice provides Original Equipment Manufacturers (OEMs), brake and component manufacturers, and aftermarket suppliers with results related to
Truck and Bus Hydraulic Brake Committee
This AIR is limited to the testing of an extra-high strength copper alloy and benchmark conductors utilizing the test protocol of AS6324. All samples are 19 strand unilay conductors per AS29606 at 24 or 26 AWG, either nickel or silver coated. At 24 AWG, extra-high strength copper alloy is compared to high strength copper alloy conductors. At 26 AWG, extra-high strength copper alloy is compared to high strength copper alloy and ultrahigh strength copper alloy conductors.
AE-8D Wire and Cable Committee
E-25 General Standards for Aerospace and Propulsion Systems
The following schematic diagrams reflect various methods of illustrating automotive transmission arrangements. These have been developed to facilitate a clear understanding of the functional interrelations of the gearing, clutches, hydrodynamic drive unit, and other transmission components. Two variations of transmission diagrams are used: in neutral (clutches not applied) and in gear. For illustrative purposes, some typical transmissions are shown.
Automatic Transmission and Transaxle Committee
This SAE Standard covers cold drawn and annealed seamless low-carbon steel pressure tubing intended for use as hydraulic lines and in other applications requiring tubing of a quality suitable for flaring and bending. In an effort to standardize within a global marketplace and ensuring that companies can remain competitive in an international market it is the intent to convert to metric tube sizes which will: Lead to one global system Guide users to preferred system Reduce complexity Eliminate inventory duplications
Metallic Tubing Committee
This specification covers a corrosion- and heat-resistant nickel alloy in the form of bars, forgings, flash-welded rings, and stock for forging, flash-welded rings, or heading.
AMS F Corrosion and Heat Resistant Alloys Committee
This specification and its supplementary slash specifications establish the requirements for electrodeposition of metals by brush plating.
AMS B Finishes Processes and Fluids Committee
This SAE Aerospace Recommended Practice (ARP) provides general guidelines and procedures for servicing and maintaining oxygen systems. These methods may apply to gaseous, liquid, chemical, and portable oxygen systems. This document is not intended to replace manufacturer or airline maintenance manuals but rather to emphasize the importance of the adherence to such practices and that they be followed. Attention is given to ensure the cleanliness of oxygen systems and components are respected and appropriate practices are followed. This document provides guidance and recommendations, for engineering and maintenance personnel for airlines, modification centers, and third-party maintenance contractors, to be used while performing maintenance on oxygen systems and components. This document is intended as guidance only and may not be cited as a requirement.
A-10 Aircraft Oxygen Equipment Committee
The purpose of this SAE Aerospace Recommended Practice (ARP) is to establish general guidelines for the measurement of static and dynamic characteristic properties of aircraft tires.
A-5C Aircraft Tires Committee
To promote the development of bulk grain and container transportation at Jinzhou Port while enhancing port efficiency, this study investigates how to further improve the bulk grain container transportation method to increase market competitiveness. The aim is to propose new strategic ideas for expanding market presence and strengthening competitive capabilities. The paper presents the strategic objectives for the development of bulk grain container transportation at Jinzhou Port and conducts a comprehensive analysis of the internal and external environments of this transportation mode. This analysis facilitates the formulation of a detailed development plan and layout for current operations. Furthermore, the study proposes the necessary strategic positioning for the advancement of bulk grain container transportation, employing a logistic regression forecasting method to predict the annual throughput of bulk grain container operations at Jinzhou Port. Based on the forecasting results
Qi, Yin
Pavement maintenance decision-making is the key to determining the maintenance program and ensuring the maintenance effect. Still, the existing pavement maintenance decision-making methods have problems, such as incomplete and inaccurate data. Based on this, this study develops an intelligent decision-making system for pavement maintenance on highways in Gansu Province by combining DeepSeek artificial intelligence technology with dynamic capability theory. The proposed framework integrates multi-source data fusion, predictive analytics, and organizational collaboration mechanisms to address the systematic challenges of resource allocation and decentralized decision-making. A spatio-temporal graph convolutional network enables accurate pavement performance modelling, while a redesigned decision-making process enhances cross-departmental coordination through game-theoretic optimization and blockchain-based traceability. The results show significant improvements in operational efficiency
Xie, ZilongLiu, ChunyaHuang, TaoKou, YujiaoXie, BingleiXue, Xue