Researchers propose a new verifiable searchable symmetric encryption scheme supporting conjunctive keyword queries, enabling both correctness and completeness verifiability without pairing operations. This improves the computational cost in the verification process, making it more efficient.
A study in Hebei Province found low emergy sustainability index and high greenhouse gas emissions from maize production. The research suggests optimizing yield and nitrogen use efficiency gaps and promoting transition towards sustainable agriculture practices, such as adopting technologies like 4R technology and digital agriculture.
The study explores the interaction between sodium metal and organic materials using in situ photoelectron spectroscopy. Researchers found that fluorination promotes sodiophilic sites, providing insights for designing fluorine-containing electrolyte additives and hosts to protect sodium metal anodes.
This study reveals that topography and soil pH are key factors influencing the spatial distribution and activity density of termites in tropical forests. The researchers found that different feeding groups respond to environmental influences, such as plant biomass and litter mass, affecting their co-occurrence and ecological impact.
A new study examines the nitrogen pathway in biocrude obtained from hydrothermal liquefaction (HTL) of microalgae, revealing key findings on NOC distribution and transformation. The research highlights the importance of reaction conditions and microalgae selection in optimizing HTL processes.
A research team found that the coupling relationship between thermal control and material removal affects machining accuracy and energy efficiency. The study aims to improve energy-efficient and precision machining collaboratively.
Researchers have developed a photonic chip that can perform large complex-valued matrix-vector multiplications, breaking the bottleneck in traditional optical computing schemes. The chip has great potential for applications in artificial intelligence computing, such as image convolution and discrete Fourier transforms.
A promising solution to improve surface hydrophobicity of hydrophobic membrane was found by preparing PVDF-HFP copolymer membrane via thermally induced phase separation. The resulting membranes showed high hydrophobicity, stability, and desalination performance.
Chirped pulse driving is proposed to eliminate multiple temporal trapping positions in passive Kerr-resonators-based dissipative cavity solitons. The results demonstrate the chirp is responsible for single soliton generation, with deterministic generation achieved at sufficient chirp parameters.
Researchers engineered NiCoP4O12/NiCoP nanowire arrays with high specific capacity and improved electrochemical performance through phosphorus doping. The material exhibits a high capacitance of 507.8 μAh·cm−2 and ultra-stable ability after 10000 cycles.
Researchers developed an improved transient spectrometer combining TCSPC with a pulse generator to investigate energy transfer mechanisms and exciton evolution in organic light emitting diodes. The technique's superior sensitivity enables extraction of mobility information, providing valuable insights into device physics.
Researchers studied acoustic characteristics of gas-liquid-solid linkage in CBM reservoirs, analyzing P-wave and S-wave response to fluid saturation under different coal rank conditions. The study found that the relative anisotropy increased with water saturation, suggesting stronger acoustic anisotropy in tectonic coals.
The study found that cultivated kumquat species have an independent phylogeny among citrus taxa, rejecting the hybridization origin hypothesis. The populations underwent directional selection during their evolutionary trajectory, and the asynchronous population dynamics were earlier than human activity in southern China.
The ALLOMAN hexapod robot combines leg and arm functions to achieve mobile manipulation, increasing flexibility and efficiency in legged robots. This novel platform has been successfully developed by the Robotics Institute of Beihang University, China.
A study of 20 full-scale WWTPs found MBR performed better than CAS in terms of energy consumption and environmental benefits, with increased marginal environmental benefit and average net profit. The techno-economic feasibility of retrofitting from CAS to MBR is confirmed, especially under strict effluent standards.
Scientists at Wuhan University developed a non-contact optical characterization method to detect negative water pressure in microfluidic systems. By analyzing the deformation of hydrogel surfaces, they derived the exact value of negative pressure. This innovation has potential applications in mapping dynamic flow and heat transfer.
A new model, GCM, uses graph neural networks to capture user behavior interactions and factorization machine to model feature interactions, demonstrating effectiveness on public datasets. The research advances context-aware recommender systems by leveraging graph learning for strong user and item representations.
A new tsRNA, tRF-Gln-TTG-006, has been identified in the serum of liver cancer patients as a promising biomarker for early diagnosis and prognosis. This discovery provides valuable information on the relationship between tsRNAs and liver cancer development.
A new robot system enables automatic insertion of needles for prostate diagnosis and treatment, reducing trauma and improving success rates. The 8-joint robot uses a parallel structure for precise control and can be calibrated using particle swarm optimization.
Researchers developed an alkali-resistant pervaporation membrane with excellent performance in separating sodium chloride solutions. The composite membrane showed stable desalination and alkaline resistance, making it suitable for various industrial applications such as papermaking and water resource recovery.
Researchers at Peking University propose a novel structure for a slot-strip mode converter, reducing optical insertion loss and supporting both TE0 and TM0 polarizations. The converter enables advanced functions like polarization division multiplexing, with low polarization-dependent losses.
In southern Anhui Province, archaeobotanical remains at the Jingshuidun site reveal early rice farming dating back to 4874-4820 cal. yr B.P., with millet cultivation emerging by 2667-2568 cal. yr B.P.
Researchers have designed a manganese dioxide/carbon nanosheet composite material to address electrode morphology and size distribution issues. The composite exhibits superior electrochemical properties, including higher specific capacitance, better multiplicative performance, and lower internal resistance.
A research group studied China's water conservation regulations in the northern drylands and found they drove industrial transformation, reducing negative environmental impacts. Adaptive strategies were developed for 12 cities to integrate their development pathways and promote holistic sustainable development through cooperation.
Researchers found that high-speed shearing enhances chemical reactions by accelerating collisions among reactant molecules. The study suggests using a narrow gap between the stator and rotor to eliminate backflow phenomena, improving mixing conditions.
Research found that cattle manure biochar addition can offset earthworms' contributions to greenhouse gas emissions in forest soils. The study showed that adding 10% biochar reduced CO2 and N2O emissions, improved soil pH, and increased denitrification rates.
Researchers developed a two-step synthesis route for NK0238, an amino acid-derived pesticide, with high atom economy and yield. The compound exhibited broad antiviral activity against multiple plant viruses, outperforming existing agents in terms of efficacy.
A new drag model for powder-particle spouted beds has been developed and tested, achieving higher accuracy in simulating the desulfurization process. The model's structure-activity relationship has been shown to improve predictions of particle velocity, water vaporization rates, and mass fractions.
Researchers found that soil solarization effectively controls Bradysia cellarum infestations without harming Chinese chive crops, while also increasing beneficial microorganisms. The study suggests soil solarization as a promising, pesticide-free method for controlling this soil insect.
This study demonstrates that soil bacterial communities on Zijin Mountain are significantly distinct along a small elevation gradient, with soil pH as the most important driver. The researchers found distinct distribution patterns between soil microbes and plants, suggesting that body size affects elevational diversity patterns.
Researchers propose a novel evaluation framework to assess energy neutrality in wastewater treatment plants, integrating energy efficiency and recovery. The study evaluated 970 plants in the Yangtze River Economic Belt, identifying 98 energy benchmark plants and 112 fully energy self-sufficient facilities.
Scientists at Huazhong University of Science and Technology have created a new type of fiber optical tweezers that can trap particles using transverse electromagnetic modes. This breakthrough enables the manipulation of single biomolecules like DNA and proteins, opening up new possibilities for bioparticle research.
The COVID-19 pandemic has significantly increased the generation of medical waste, with daily output surging from 200 tons to over 29,000 tons in September 2020. The study also highlights the need to update emergency medical waste treatment strategies and manage personal protective equipment waste effectively.
A study found that SIRT2 activation by PM2.5 exposure triggers airway inflammation, bronchial hyperresponsiveness, and organ damage in mice. Triptolide inhibition of p65 reduced PM2.5-induced effects, suggesting a novel therapeutic strategy against PM2.5 toxicity.
A new rapid thermal evaporation method was developed to deposit high-quality CdSe thin films, enabling the creation of efficient CdSe solar cells. The study achieved an efficiency of 1.88% in a Si-based tandem configuration, demonstrating potential for high-performance solar cells.
The h-BN/NiS2/NiS nanocatalyst exhibits high photocatalytic performance for removing Cr(VI) and rhodamine B from wastewater, with a synergistic effect enhancing its activity and stability. The composite material displays uniform dispersion of NiS2/NiS nanocrystals, increased specific surface area, and enhanced light absorption.
Researchers at Tianjin University have designed a novel carbon-coated Ni-Co alloy catalyst that improves the stability and efficiency of in-situ aqueous phase hydrodeoxygenation. The catalyst achieved a hydrocarbon yield of 92.6%, making it a promising alternative to traditional methods.
A preliminary analysis of the condominium building collapse in Surfside, Florida, revealed low punching shear strengths and poor reinforcement detailing in typical slab-column joints. This can lead to a low safety margin, robustness, and resistance to progressive collapse.
Researchers introduce flower-like nickel phyllosilicates to epoxy resin, enhancing mechanical property, thermal stability, and tribological response. The addition of 5% nanofillers can suppress wear resistance by 86.6%, improving anti-wear properties.
Researchers found that herbivory and wounding on tomato leaves elicit strong electrical signals, which interact with JA signaling to confer resistance. GLR genes play a crucial role in regulating these signals and JA accumulation.
Scientists propose EicC to investigate quark and gluon contributions to nucleon spin and mass, as well as novel multi-particle dynamics. The recently released white paper outlines physics goals, detector design, and accelerator specifications.
A study found that vaccination alone cannot stop the pandemic in some scenarios, and non-pharmaceutical interventions (NPIs) are necessary to complement vaccination. The model predicts that the pandemic will end between January 20, 2022, and October 19, 2024, assuming immunity persists for 180 days to 365 days.
Researchers cloned a novel gene, FNC, in tomato and found it causes the fruit to develop a 'netted-cracking' phenotype. The study provides genetic insights into this disorder and offers potential for molecular improvement of cracking-resistant varieties.
Researchers mapped the molecular mechanisms of primate hippocampal aging, identifying key cell types and molecules affected by age. The study provides a valuable resource for diagnostic biomarkers and therapeutic targets for neurodegenerative diseases.
New research adds lattice potential to quantum droplet analysis, producing stable fundamental and vortical modes. The study improves understanding of BEC dynamics and opens door for new species creation.