Russian Journal of Applied Chemistry

Article	Citations
Methane Pyrolysis for Hydrogen Production: Specific Features of Using Molten Metals	31
Biomedical Applications of Nanofibers	29
Hydrogen Storage Using Liquid Organic Carriers	28
Pathways of Chemical Recycling of Polyvinyl Chloride: Part 1	19
A Review in Linear Alkylbenzene (LAB) Production Processes in the Petrochemical Industry	14
Pathways of Chemical Recycling of Polyvinyl Chloride. Part 2	13
Desulfurization of Gasoline Fuel via Photocatalytic Oxidation/Adsorption Using NaX Zeolite-Based under Mild Conditions: Process Optimization by Central Composite Design	12
Carbon Dioxide Reforming of Methane	12
Sintering Behavior and Properties of Reaction-Bonded Silicon Nitride	11
Degradation of Industrial Phenolic Wastewater Using Dielectric Barrier Discharge Plasma Technique	11
On the Possibility of a Radical Increase in Thermal Conductivity by Dispersed Particles	10
Effect of Carbon Nanotube Functionalization on the Physicochemical and Mechanical Properties of Modified Fiber-Reinforced Composites Based on an Epoxy Resin	10
Surface Preparation of Aluminum Alloys for Electroplating	10
Nitrogen Doped Porous Reduced Graphene Oxide Hybrid as a Nanocarrier of Imatinib Anticancer Drug	10
The Effect of Surface Polarity on the CMP Behavior of 6H-SiC Substrates	10
Production of Aromatic Hydrocarbons from Syngas: Principles, Problems, and Prospects	9
Prospects for Production and Use of Hydrogen as one of Directions of the Development of Low-Carbon Economy in the Russian Federation	9
Pyrolysis of Polyurethanes. Process Features and Composition of Reaction Products	9
Photocatalytic Studies of La,Ce Co-Doped ZnO Nanoparticles	8
Comparison of Various Options for Designing the Direct Oxidation of Methane to Methanol	7
Application of Low-Temperature Solvolysis for Processing of Reinforced Carbon Plastics	7
Synthesis of Aluminum Oxides with Controlled Textural and Strength Parameters	7
Recovery of Zinc, Copper, Nickel, and Cobalt from Electroplating Wastewater by Electro-Nanofiltration	7
Extraction Methods for Removing Sulfur and Its Compounds from Crude Oil and Petroleum Products	7
Decomposition of Carbon Dioxide in Microwave Discharges (an Analytical Review)	7

Synthesis, Heat Resistance, and Mechanical Properties of Cross-Linked Urethane–Imide Copolymers Containing Blocks of Two Structurally Different Aliphatic Fragments (Polyether and Polyester) in the Bac	7
Nanocomposites of Graphene Oxide and Metal-Organic Frameworks	6
Synthesis and Herbicidal and Antioxidant Activity of a Series of Hetero- and Carbocyclic Derivatives of Monochloroacetic Acid	6
Multilayer Engineering of Polyaniline and Reduced Graphene Oxide Thin Films on a Plastic Substrate for Flexible Optoelectronic Applications Using NIR	6
Study of Kinetics of Isoprene Polymerization in the Presence of Neodymium-Containing Catalytic Systems Modified in Turbulent Flows	6
Synthesis of Mesoporous Zn-doped TiO2 Nanoparticles by Colloidal Emulsion Aphrons and Their Use for Dye-sensitized Solar Cells	6
Thermal Degradation of Nafion in the Presence of Nanostructured Materials: Thermally Expanded Graphite, Carbon Black, and Platinum	6
Ratio Design of Docetaxel/Quercetin Co-Loading-to-Nanocarrier: Synthesis of PCL–PEG–PCL Copolymer, Study of Drug Release Kinetic and Growth Inhibition of Human Breast Cancer (MCF-7) Cell Line	6
Adsorption of 1,2-Dichlorobenzene on a Carbon Nanomaterial Prepared by Decomposition of 1,2-Dichloroethane on Nickel Alloys	6
Pyrolysis of Polyamide-Containing Materials. Process Features and Composition of Reaction Products	6
Synthesis of Stearyl Methacrylate–Glycidyl Methacrylate Copolymers and Their Use as Multifunctional Additives to Diesel Fuel	5
Synthesis and Physicochemical Properties of Complex Oxides K2MexTi8–xO16 (Me = Mg, Ni, Al) of Hollandite Structure	5
Atomic Layer Deposition and Thermal Transformations of Thin Titanium–Vanadium Oxide Films	5
Petrochemical Industry in Russia: State of the Art and Prospects for Development	5
Synthesis of Environmentally Safe Antiwear Additives to Lubricating Materials: State of the Art and Prospects	5
Preparation and Use of Materials for Color Road Pavement and Marking	5
Feasibility of Acid–Salt Processing of Alumina-Containing Raw Materials in a Closed-Loop Process	5
The Use of Modified Clay as an Efficient Heterogeneous and Ecofriendly Catalyst for the Synthesis of Chalcones via Claisen-Schmidt Condensation	5
Sorption Recovery of Lanthanum, Iron, Aluminum, and Calcium Ions from Phosphoric Acid	5
Effect of the Isopropanol Impurity in the Feed on Catalytic Dehydration of Bioethanol to Ethylene	4
Synchronized Esterification and Transesterification of Jatropha Curcas Using Ferric Sulfate Modified Snail Shells As a Bi-Functional Catalyst: A Box-Behken Optimization Approach	4
Effect of Temperature and Pressure on Conversion of Methane and Lifetime of the Catalyst in the Catalytic Decomposition of Methane	4
Development of the Detonation Nanodiamond Synthesis from Tetryl Based Ternary Mixtures	4
3D Printing of Hydrogel-Based Biocompatible Materials	4
Features of Methyl Linoleate Oxidation in Triton X-100 Micellar Buffer Solutions	4
Features of the Isobutane Alkylation with Butylenes on Zeolite Catalysts	4
Oxidative Conversion of Wood Gasification Products in a Mixing Reactor	4
Catalytic Reactors for Dehydrogenation of Liquid Organic Hydrogen Carriers	4
Optimization of Technology for Synthesis of Li4Ti5O12 Anode Materials for Lithium-Ion Batteries	4
Nanocomposite Coatings Based on Modified Graphene Oxide and Polydimethylsiloxane: Characterization and Thermal Properties	4
Synthesis and Antimicrobial Activity of 3-Substituted 8-Propenylbenzo[e][1,3]oxazines	4
Synthesis of Glyoxylic Acid by Glyoxal Oxidation in the Presence of Hydrohalic Acids	4
Nanotechnology of Molecular Layering in Production of Inorganic and Hybrid Materials for Various Functional Purposes (a Review): I. History of the Development of the Molecular Layering Method	4
Microwave-Stimulated Conversion of a Tar/Lignin Blend into Hydrocarbons in a Plasma-Catalytic Mode	4
Calcium Carbonate Polymorphs in Overbased Oil Additives and Greases	4
Fabrication of Highly Active Ag3PO4/ZnO/Diatomite for Visible Light Photocatalytic Degradation of Tetracycline Hydrochloride	4
Tire Pyrolysis. Process Features and Composition of Reaction Products	4
Prospects for Using Graphene Nanomaterials: Sorbents, Membranes, and Gas Sensors	4
Cure Kinetics of Epoxyurethane Compositions with Amine Hardeners of Various Nature	4
Experimental and Computational Studies of N-(4,6-Dimethylpyrimidin-2-yl)-4-[(quinazoline-4-yl)amino]-benzene-1-sulfonamide as an Effectual Corrosion Inhibitor for Mild Steel in Hydrochloric Acid	4
Dielectric Spectroscopy of Vegetable Oils	4
Regularities in the Dependence of the Enthalpies of Formation of Certain Conjugated Polynitrogen Heterocyclic Compounds on Their Structure	4
Effect of the Degree of Sulfoethylation of Polyaminostyrene on Its Acid-Basic Properties and Specificity of Interaction with Transition Metal Ions	4
Application of Nanofibers in Virus and Bacteria Filtration	4
Effect of Synthesis Parameters on the Structural, Optical and Electrical Properties of Successive Ionic Layer Adsorption and Reaction (SILAR)-Deposited CuO Thin Films	4
Solid–Liquid Extraction of Rare Earth Elements Ce(IV), Pr(III), Er(III), and Y(III) from Concentrated Phosphoric Acid Solutions Using Strongly Acidic Cation Exchange Resin (SQS–6)	4
High Efficiency Electrodes for Alkaline Electrolysis of Water	4
Synthesis of Selenium Nanoparticles Stabilized with Sodium Carboxymethylcellulose for Preparation of a Long-Acting Form of Prospidine	4
Enhanced Optical and Electrical Properties of Graphene Oxide-Silver Nanoparticles Nanocomposite Film by Thermal Annealing in the Air	4
Electrode for a Supercapacitor Based on Electrochemically Synthesized Multilayer Graphene Oxide	4

Selective Treatment of Light Catalytic Cracking Gasoil with N-Methylpyrrolidone to Obtain a High-Density Jet Fuel Component or a Liquid Organic Hydrogen Carrier	4
Analysis of the Safety of Using Hydrocarbon Fuels and Hydrogen in Automobiles	4
Ionic Liquid-Assisted Preparation of Co3O4 Nanosheets as a New and Efficient Catalyst for Green Synthesis of Various 1,5-Benothiazepine Derivatives in Water	4
Thermoelectric Properties of a Phase-Heterogeneous Ceramic Based on Ca3Co4O9+δ, Prepared by Hot Pressing	4
Extraction of Yttrium-Subgroup Rare Earth Elements with Aliquat 336	4
Improvement of the Physicomechanical and Corrosion-Protective Properties of Coatings Based on a Cycloaliphatic Epoxy Matrix	4
Plasma-Assisted Catalytic Decomposition of Carbon Dioxide	3
Synthesis of Highly Dispersed Aluminum Magnesium Oxides from the Product of Centrifugal Thermal Activation of Gibbsite	3
Investigations on the Formation of Transition Metal Phosphides during the Hydrotreating of Light Cycle Oil	3
Shape Selectivity in Hydroisomerization of n-Hexadecane over Pd Supported on Zeolites: ZSM-22, ZSM-12 and Beta	3
Method for Determining the Rate Constants of Chemical Reaction Stages in an Enclosed Gradientless Reactor	3
Key Technology Development Priorities for the Oil Refinery Sector in Russia	3
Comprehensive Analysis of the Liquid Fraction of Car Tire Pyrolysis Products by Gas Chromatography–Mass Spectrometry	3
Production and Research of Fullerene-Modified Chemical Adsorbent of Ammonia Based on Activated Carbon	3
New Matrix Compounds for the Detection of Carboxyl-Containing Nonsteroidal Anti-Inflammatory Drugs by MALDI Mass Spectrometry	3
Behavior of Polytrimethylsilylpropyne-Based Composite Membranes in the Course of Continuous and Intermittent Gas Permeability Measurements	3
Kinetic Heterogeneity of the Catalytic System Based on Gadolinium Chloride Solvate in 1,4-cis-Polyisoprene Production	3
Development of Lubricant Formulations for Modern Electric Vehicles	3
Synthesis of a New Benzoate Plasticizer for Polyvinyl Chloride Based on a 2-Ethylhexanol By-Product	3
One-Step Synthesis of a Steel Corrosion Inhibitor, 1-(2-Neononylamidoethyl)-2-neononyl-2-imidazoline	3
Influence of the Hydrothermal Synthesis Conditions on the Photocatalytic Activity of Titanium Dioxide Nanorods	3
Some Cubane Derivatives as Potential Components of Solid Gas Generator Propellants	3
Equilibrium Constants of Pyridinecarboxylic Acid Sorption from Aqueous Solutions by Dowex 50 Cation Exchangers	3
A Cellular Ceramic as a Catalyst Support for Radiolytic Gas Recombination Devices	3
Behavior of the Sewage Sludge Ash under the Conditions of High-Temperature Processing	3
Attrition of Particles in Fluidized Bed Apparatuses	3
Composites Based on Polyaniline and Activated IR-Pyrolyzed Polyacrylonitrile As Promising Supercapacitor Electrode Materials	3
Noncatalytic Syngas Production Processes and Possibilities of Reducing the СО2 Emission into the Environment	3
Synthesis of High-Purity Basic Bismuth(III) Succinate as a Pharmaceutical Substance	3
Supercapacitor Electrode. Formation Based on Thoil-Functionalized Graphene Oxide	3
Synthesis and Properties of Magnetically Susceptible Porous Carbon Materials Based on Hydrolysis Lignin Modified with ZnCl2 and FeCl3	3
Erratum to: Photocatalytic Degradation of Antibiotic Norfloxacin Aqueous Solution by Ce/Bi2WO6: Optimization and Simulation of Process by RSM	3
Ni–TiO2 Functional Composite Coatings Deposited from an Electrolyte Based on a Choline-Containing Ionic Liquid	3
Structuring of Finely Dispersed Ferrosilicoaluminum for Nitride-Containing Ceramics Production	3
Photocatalytic Degradation of Antibiotic Norfloxacin Aqueous Solution by Ce/Bi2WO6: Optimization and Simulation of Process by RSM	3
Processing of Nitric Acid Solutions to Produce Bismuth Nitrate Pentahydrate	3
A New Sulfonic Acid Cation-Exchange Resin Based on Polyvinyl Chloride and Its Evaluation in Water Softening	3
Fischer–Tropsch Synthesis in the Presence of Catalysts Based on Unmodified Iron Ores	3
On the Mechanism of Sulfur Removal during Hydroconversion in the Presence of a Catalyst MoS2	3
Leaching of Impurities from Poor Intermediate Products of Refining Production in Autoclave Conditions	3
Synthesis and Structure of Grafted Copolymers of Acrylic Acid and Low Molecular Weight Polyethylene	3
Preparation of Calcium Fluoride Nanoparticles by Double-Jet Precipitation	3
Synthesis and Characterization of Carboxymethyl Cellulose-graft-Poly(Acrylamide-co-Crotonic Acid) Hydrogel: Matrix for Ammonium Nitrate Release, as Agrochemical	3
Optimization by Response Surface Methodology of the Adsorption of Anionic Dye on Superparamagnetic Clay/Maghemite Nanocomposite	3
Mechanochemical Modification of Activated Carbon in Air	3
Alkylation of Toluene with tert-Butyl Alcohol over Different Zeolites with the Same Si/Al Ratio	3
Synthesis of Struvite in Aqueous-Salt Systems in which Competing Phases of Magnesium Phosphate Crystal Hydrates of Different Compositions Can Be Formed	3
Effect of Substituents on the Energy Barrier of Internal Rotation in Aminonitroethylenes	3
Influence of the Composition of the Sulfuric Acid Cation Exchanger on the Efficiency of Chromatographic Purification of Petroleum Vanadyl Porphyrins	3
Structure and Properties of Conducting Composites Based on Polyolefins and Carbon Black	3
Recovery of Iron, Nickel, and Copper in Waste Water from Printed Circuit Board Manufacture by Electrodialysis Method	3
Properties of Zinc Oxide Adsorbent for Adsorbing Hydrogen Sulfide	3
Development of Yttrium and Iron Oxide Thin Films via AACVD Method for Photooxidation of Water	3
Comparison of the Turbulent Drag Reduction Effectiveness of Polymers from Higher Olefin Monomers (Hexene, Octene, Decene, Dodecene) in the Production of Hydrodynamic Drag Reducing Agents for Transport	2
Catalysts for Carbonylation of Alcohols to Obtain Carboxylic Acids and Esters	2
Extraction Treatment of Delayed Coker Heavy Gas Oil with N-Methylpyrrolidone	2
Synthesis of Polysilazane by Ammonolysis of Dichlorosilane in a Nucleophilic Solvent	2
Ion Exchange Treatment of Cobalt Acetate Solutions to Remove Iron(III) Impurity	2
Heat Release Kinetics in Thermally Initiated 1,4-Diethynylbenzene Polymerization	2
Kinetics of Propane Hydrate Formation from Melting Ice in Frozen Aqueous Poly(vinyl alcohol) Solutions	2
Epoxy Nanocomposites Modified with Functionalized Multiwalled Carbon Nanotubes	2
Synthesis of Mesoporous Silica Gel Doped with Dysprosium and Modified with Nickel and Study of Its Selectivity in the Catalytic Hydrogenation of a Benzene and Its Derivatives	2
Synergism of Triallyl Cyanurate and Divinylbenzene in a Dynamically Vulcanized Blend of Polypropylene with Hydrogenated Styrene–Butadiene–Styrene Block Copolymer	2
Inverse Emulsion Copolymerization of Acrylamide and 2-Acrylamido-2-methylpropane Sulfonic Acid Sodium Salt for Preparing Water-Soluble Drag Reduction Additives	2
Spectroscopic and Morphological Study of Irradiated PVC Films Doped with Polyphosphates Containing 4,4'-Methylenedianiline	2
Absorption Properties of Polyurethane Hydrogels Based on Partial β-Cyclodextrin Nitrates and Polyethylene Glycol	2
Effect of Active Diluents on Properties of Epoxy Compounds and Coatings Based on Them	2
Hydrogen Bonding in Insensitive High Explosives	2
Synthesis and Analytical Characteristics of New Membrane Materials for Thallium(I) Selective Sensors	2
Optimization of Combustion Efficiency Using a Fuel Composition Based on CH4 and/or H2	2
Cobalt Catalysts for Hydroformylation and Carboalkoxylation: History and Commercial Prospects	2
Synthesis and Properties of Carbon Gels Based on Larch Bark Tannins and Hydrolysis Lignin	2
Features of Epoxidation of Fatty Acid Methyl Esters in a Bubble Reactor	2
Making an Anode of a Hydrogen–Air Fuel Cell More Tolerant to CO: PtRuCo/C Catalyst and Synergistic Effect of PtRu/C and Oxygen Additives	2
Synthesis and Electrochemical Properties of Manganese Dioxide as Cathode Material for Aqueous Zinc-Ion Batteries	2
Magnetite–Activated Carbon Nanocomposites: Synthesis, Sorption Properties, and Bioavailability	2
Deactivation and Activation of Coordination Catalysts in Liquid-Phase Synthesis of Tris(hydroxymethyl)phosphine	2
Formation of the Active Surface of the FeCrAl Catalyst under Electric Current Heating Conditions	2
Novel Сarbon Dots for Corrosion Inhibition of N80 Carbon Steel in 3% Saturated CO2 Saline Solution	2
Preparation and Properties of Metal-Containing Nanocomposites Based on Isotactic Polypropylene and Butadiene–Acrylonitrile Rubber	2

Synthesis and Fungicidal Activity of 4-[(Alkylsulfanyl)methyl]-3,5-dimethylisoxazoles	2
A Mini-Review on Methods of Solvent Extraction Kinetics for Heavy Metal Ions	2
Synthesis of Nickel-Containing Sapropel Based Catalysts and Their Study in the Liquid-Phase Hydrogenation of Nitrobenzene	2
Polymerization of Tricyclononenes Contaning Trialkoxysilyl Substituents with Long Alkyl Fragments	2
Adsorption of Alizarin Red onto Carbon Black	2
Preparation and Structural and Electrochemical Characteristics of a Carbon-Containing Material Based on Aspen Bark Modified with Zinc and Iron Chlorides	2
Structural, Rheological, and Mechanical Properties of Binary Compounds Based on High-Density Polyethylene and Linear Low-Density Polyethylene	2
Extraction of Palladium(II) with Liquid Membranes Based on Tri-n-Octylammonium and Trialkylbenzylammonium Chlorides under Electrodialysis Conditions	2
Application of Natural Clays for Purification of Rapeseed Oil from Colorant	2
Thermally Stable Magnetic Polyurethane Nanocomposites Prepared from Functionalized Polybutadiene: Novel Approach to the Polybutadiene Chemical Modification	2
Allyl-Functionalized Polybenzimidazole for Laser Stereolithography	2
Surface Modification of Cellulose Microfibrils with Silane Agent for Eco-Friendly Hydrophobic Coatings	2
Nanotechnology of Molecular Layering in Production of Inorganic and Hybrid Materials for Various Functional Purposes: II. Molecular Layering Technology and Prospects for Its Commercialization and Deve	2
Recovery of Nitrogen and Phosphorus in Processing of Aqueous Production Wastes by Precipitation of Struvite Using an Active Intermediate as a Reagent	2
Silver Nanocomposites Based on Copolymers N,N-Dialyl-Nʹ-acylhydrazines with Acrylic Monomers	2
Conversion of Dimethyl Ether to a Triptane-Enriched Mixture of Liquid Hydrocarbons: Influence of Modifier and Reaction Conditions	2
Life Cycle Assesment of Powertrains Based on a Battery, Hydrogen Fuel Cells, and Internal Combustion Engine for Urban Buses under the Conditions of Moscow Oblast	2
Production of Luminescent Europium(III) Compounds with para-Methoxycinnamic Acid	2
Synthesis of 5-Substituted 1H-Tetrazoles Catalyzed by M-SAPO-34 (M = Co, Cu, Mn, Fe, and V) Nanostructures	2
Electrolysis with Fibrous Carbon Electrodes in Recovery of Platinum Metals from Mineral and Secondary Raw Materials	2
Chemical and Biochemical Reactors for Controlled Synthesis of Organic and Inorganic Compounds	2
Frost-Resistant Elastomers with Controllable Microphase Segregation, Based on Epoxy–Ether–Urethane Oligomers	2
Investigation of the Effect of Mono- and Diurethane Units on the Deformation and Strength Properties of Polyurethanimides	2
Pyrolysis of Crumb Tire Rubber Obtained from Waste Largesized Tires of Trucks	2
Low Surface Energy Polyurethane Coatings Based on Acrylic Copolymer and Polyisocyanate Modified with an Organosilicon Block Copolymer	2
Effect of Chromium Oxide Additions on the Stability of Glass Ceramic Sealants for Solid Oxide Fuel Cells	2
Fluorescent Properties of Polymer Systems with Negative Photochromism Based on Complexes of Spiropyran with Metal Ions	2
Alkylation of Isobutane with Butylenes on Catalysts with Various NaX Zeolites in the CaLaHX Form	2
Effect of Liquid-Phase Oxidative Treatments on the Purity, Hydrophilicity, and Structure of Single-Wall Carbon Nanotubes and on the Electrical Conductivity of Their Arrays	2
Investigation of the Dual Active/Barrier Corrosion Protection, Mechanical and Thermal Properties of a Vinyl Ester Coating Doped with Ginger Modified Clay Nanoparticles	2
Features of the Sorption of Rhodium(III) from Chloride Solutions on an Ion Exchange Resin with Thiouronium Functional Groups	2
Synthesis of Monomers for Promising Membrane Materials, Polyalkylenesiloxanes	2
Anionic Copolymerization of Acrylonitrile with Methyl Acrylate under the Action of a Novel Initiating System Based on a Bicyclic Tertiary Amine and Ethylene Oxide	2
Effect of Steam–Air Treatment of Alumina–Chromia Dehydrogenation Catalysts on Their Physicochemical and Catalytic Characteristics	2
On the Application of Modified Low Molecular Weight Polyethylene in Compositions with Starch	2
Erratum to: Solid–Liquid Extraction of Rare Earth Elements Ce(IV), Pr(III), Er(III), and Y(III) from Concentrated Phosphoric Acid Solutions Using Strongly Acidic Cation Exchange Resin (SQS–6)	2
Phase Transformations and Formation of Nanofibers under the Action of a Nanosecond Relativistic Electron Beam on Syntactic Foams with a Polymeric Siloxane Binder	2
Multi-Stage Extractive Purification of Visbreaking Gas Oil with N,N-Dimethylformamide	2
Mild Mechanochemical Synthesis of Nanodispersed Composites Magnetite@M(II)-Fe Layered Double Hydroxides (M = Mg, Ni)	2
Synthesis and Catalytic Activity of Quaternary Ammonium Salts Containing gem-Dichlorocyclopropane and 1,3-Dioxolane Fragments	2
Characteristics of Stereoregular cis-1,4-Polyisoprene Obtained under the Conditions of a Large-Tonnage Production Process on Titanium and Lanthanide Catalysts Modified in Turbulent Flows	2
Opportunities and Challenges to Deploy Industry 4.0 Technologies in the Russian Oil Refining and Petrochemical Industries	2
Formation and Properties of Nickel Contacts to Thermoelectric Materials Based on Bismuth and Antimony Chalcogenides	2
Degradation of Polylactide–Polyethylene Blends in Aqueous Media	2
Study of the Composition of Volatile By-Products, Formed by Dissolution of Wood in Ionic Liquids Based on 1-Butyl-3-Methylimidazolium	2
Natural Dyes from Ornamental Plants as Sensitizers for Dye-Sensitized Solar Cells (DSSCs): A Review on the Structure-Activity Relationships (SARs) between Power Conversion Efficiencies and Chemical Co	2
Application of Intermetallics (La,Ce)Ni5 in Hydrogen Energy Storage Systems	2