写真素材の検索結果

In variable-sum games each payoff depends on both players' actions, so each matrix entry lists two payoffs, one for each player.

A saddlepoint, or entry, in a payoff matrix at which the expected gain of each participant has the highest guaranteed payoff.

The second reduction for an n-person voting game theory, illustrating the strategies least suitable for each participant.

If a saddlepoint does not exist for a payoff matrix, a probabilistic strategy is optimal to maximize expected (average) rewards.

The first reduction for an n-person voting game theory, illustrating the strategies least suitable for each participant.

Pay-off matrix showing bourgeois, or mixed attack/retreat behaviour, as the most stable strategy for a population.

Basic characteristics of orbits in which a satellite can be placed around Earth, categorized by inclination, shape and altitude.

子供カレンダー 2021年 1月から6月

子供カレンダー 2021年 7月から12月

An active-matrix thin-film transistor (TFT) liquid crystal display. A TFT is associated with each pixel of the display screen.

Compton effect

Vegetation profile of a grassland.

Elements of the traveling-wave tube (TWT), used to amplify microwave signals over broad bandwidths.

The four strokes of a four-stroke cycle engine - intake, compression, power, and exhaust. Only the intake stroke delivers power.

Three types of natural selection, showing the effects of each on the distribution of phenotypes within a population.

Proof, attributed to the Pythagoreans, that the sum of the angles in a triangle is 180 degrees.

Corporate Business Workflow Banner. Corporate business workflow banner design flat. Organization people work in a team. Workflow for a large corporation business. Structure of communication between employees company. Vector illustration

Corporate Business Workflow Banner. Corporate business workflow banner design flat. Organization people work in a team. Workflow for a large corporation business. Structure of communication between employees company. Vector illustration

Corporate Business Workflow Banner. Corporate business workflow banner design flat. Organization people work in a team. Workflow for a large corporation business. Structure of communication between employees company. Vector illustration

Corporate Business Workflow Banner. Corporate business workflow banner design flat. Organization people work in a team. Workflow for a large corporation business. Structure of communication between employees company. Vector illustration

Compound pier

戦略のパズル

The normal, or perpendicular, at each point of a surface defines the corresponding tangent plane, and vice versa.

Head of a great blue heron (Ardea herodias)

Each point on the Riemann sphere corresponds to a point on the plane. The ray tangent to the north pole corresponds to infinity.

Pie chart with "W' sign

Gyrotron, electrons from the cathode acquire cyclotron rotation in the cavity.

The Whitfeld six, bridge's most famous double-dummy problem, was named for its founder and for the number of cards in each hand.

Evolutionary history of the globin genes. The dots indicate the duplication of ancestral genes, giving rise to new gene lineage.

Point mutations. How changes in one nucleic acid of a triplet lead to different amino acids in the protein.

The Apollo program: the Saturn V launch vehicle and configurations of the spacecraft modules at launch and during the journey.

Blower-scavenged, two-stroke-cycle engine with uniflow scavenging, displaying both upstroke and downstroke.

Grand buildings

Space station Mir, after its completion in 1996, with the launch dates of each modular component shown.

Contract on a white background vector illustration

The generic layout for solitaire games is shown along with the specific layout of the klondike solitaire variant during play.

Elements of a typical Prony brake, which develops mechanical friction on the periphery of a rotating pulley.

Visual demonstration of the Pythagorean theorem.

Organizational information systems have three layers: operational support, support of knowledge work, and management support.

The three families of conic sections (ellipse, parabola, and hyperbola) result from intersecting a plane with a double cone.

Representation of an ellipsoid, a closed surface such that its intersection with any plane will produce an ellipse or a circle.

finger print alphabet - vector illustration

finger print alphabet - vector illustration

finger print alphabet - vector illustration

finger print alphabet - vector illustration

finger print alphabet - vector illustration

Genetic differentiation between populations of Drosophila willistoni.

Basic features of a modern road bicycle.

Glycolysis, the dissolution of sugar, is carried out in the cytoplasm of cells.

Electrostatic precipitator, a common particle collection device at fossil-fuel power-generating stations.

Operating principle of a parallel-flow heat exchanger.

Schematic diagram of a fluidized-bed combustion boiler.

Double refraction showing two rays emerging when a single light ray strikes a calcite crystal at a right angle to one face.

rural landscape on white background. vector

vector old-time train on white background

Meteorite on a white background vector illustration

Shotgun barrel with a torn vector illustration

肝臓の病気の進行図

集中線の背景素材　バナー比率　白背景

The components of a personal computer system.

side view of girl flying

side view of girl flying

close-up of girl holding pencil

AとBを比較するビジネスマンとビジネスウーマ

AとBを比較する男女のイラスト

二酸化炭素濃度測定器

ball icon

迷路のテンプレート

2021年のカレンダー、牛のイラストついてます

2014年カレンダー

Delaware state flag

Rising air in an unstable atmosphere

Coriolis force

Electron shell

Schematic drawing of the structure of a typical bacterial cell of the bacillus type.

The brewing process, which turns barley and hops into the alcoholic beverage of beer.

The mammalian pituitary gland, showing the anterior lobe (adenohypophysis) and posterior lobe (neurohypophysis).

Zonation of the ocean. Note that in the littoral zone the water is at the high-tide mark.

Vegetation profile of a temperate deciduous forest.

Cross section of a typical bomb calorimeter.

Cross section of a single-lens reflex (SLR) camera with a flip mirror.

The process of cell division by mitosis.

Stages in the process of meiosis, cell division among sexually reproducing organisms.

Receptor-mediated endocytosis enables cells to ingest molecules such as protein that are necessary for normal cell functioning.

The endoplasmic reticulum plays an important role in the biosynthesis, processing, and transport of proteins and lipids.

Early 19th-century whaleboat

Cross-section showing component parts of arteries and veins

Transverse section of an artery.

Human arterial supply and venous drainage of the organs.

Diagram demonstrating the progression of an arterial embolism

Diagram illustrating varicose veins

Average exchange of energy between the surface, atmosphere, and space, as percentages of incident solar radiation.

The stages in the evolution of a wave (frontal) cyclone.

Diagram of a wave system depicting typical divergence and convergence distributions for non-tilting and tilting systems.

General patterns of atmospheric circulation over an idealized Earth with a uniform surface and the actual Earth.

Horizontal divergence and convergence patterns associated with the polar-front jet.

The onset and retreat of the West African monsoon with respect to the timing of the direct rays of the sun.

The surface reflectance differences between a pre-agricultural (forest) and a modern agricultural (patchwork heating) landscape.

Electrical conduction in the heart in healthy individuals is controlled by pacemaker cells in the sinoatrial node.

Electrocardiogram of the alternating contractions during one heartbeat and a diagram of the heart's impulse-conducting system.

Diagram of a two-cavity klystron, used as an amplifier and RF signal source at microwave frequencies, and also as an oscillator.

Elements of a magnetron, used to generate power for radar systems, microwave ovens, plasma screens, and linear accelerators.

Electromagnetic spectrum. The visible range (shaded portion) is shown enlarged on the right.

The Michelson interferometer measures the effect on the speed of light of the motion of the ether through which light travels.

Four types of gasoline engines: opposed-piston engine, rotary engine, in-line engine, and V-type engine.

Basic components of an electrochemical cell.

A tokamak is a toroidal magnetic confinement system used as a method of achieving fusion energy.

The gasoline carburetor is a device that introduces fuel into the airstream as it flows into the engine.

Nickel (hydroxide)-cadmium cell of “jelly roll” construction. This rechargable battery is commonly used in portable devices.

Cross section of a V-type engine.

Diesel engine equipped with a precombustion chamber.

The sequence of events in a four-stroke diesel engine involves a single intake valve, fuel-injection nozzle, and exhaust valve.

Georges Leclanche's dry cell and its later variations, zinc chloride and alkaline cells, are batteries commonly used worldwide.

Modern version of the Leclanche cell. This heavy-duty zinc-carbon primary battery is a dry cell with an immobilized electrolyte.

Cutaway view of an alkaline-manganese dioxide power cell.

Cutaway view of a typical construction of a miniature power cell, as in a zinc-silver oxide or zinc-mercuric oxide system.

Automotive-type lead-acid battery, a storage battery that holds its charge for a long time and can be recharged.

A fuel cell (actually a group of cells) has essentially the same kinds of components as a battery.

Typical gasoline engine lubrication system.

A grid-connected solar cell system.

Baghouse employing an array of fabric bags for filtering the airstream.

Wet scrubber using a limestone slurry to remove sulfur dioxide from flue gas.

Cyclone collectors remove relatively coarse particulates from the air. Small cyclones are often installed on mobile sources.

Types of faulting in tectonic earthquakes.

Seismic ray types in Earth's interior from earthquake at F.

The Hardy-Weinberg Law applied to two alleles.

Apollo mission profile for a lunar landing and return, outlining the various stages along the mission.

U.S. space station Skylab (occupied 1973-74), shown with docked Apollo Command and Service modules.

The journey of the Galileo spacecraft to Jupiter, highlighting major observations along the trajectory, as well as their dates.

The prisoners' dilemma in game theory demonstrates how communication among participants can drastically alter their strategy.

The steps involved in the engineering of a recombinant DNA molecule.

The diffusion of water across a semipermeable membrane.

The existence of parallel magnetic anomalies in the oceanic crust corroborates the hypothesis of seafloor spreading .

Laser Interferometer Space Antenna (LISA), a Beyond Einstein Great Observatory, is scheduled for launch in 2015

In the Vienna coup, a high card must be played early, subjecting the player to a squeeze that otherwise could not have been.

U.S. space shuttle, composed of a winged orbiter, an external liquid-propellant tank, and two solid-fuel rocket boosters.

check mark on white circle with a long shadow

brown meeting table with black chairs isolated on white

brown meeting table with black chairs isolated on white

Idea business startup concept. Poster or a banner on the idea of human thought. Light bulb and plant sprout design flat style. Inspiration for startup, imagination and motivation. Vector illustration

墨絵　四季折々

8匹のねずみ イラスト

Close-up of human hands shaking

悪巧みする赤ちゃん

Proof that the area of a triangle = 1/2 base x height.

set tree silhouette on white background, vector illustration

vector illustration of the bird on white background

vector silhouette butterfly on white background

A wolf in sheep herd vector illustration

マスクをした男の子の日焼けビフォーアフター

Flag of Dominica

Whale shark

Basking shark

Great white shark

Gulper eel

Telescope fish

ピンクの蝶

クジラ　クリップアート

梅の地紋

天使とアルファべットL

天使とアルファベットM

天使とアルファベットN

天使とアルファベットO

天使とアルファベットP

天使とアルファベットT

天使とアルファベットU

ライフスタイル〜女性編〜

A vector illustration of Multi Ethnic Thumbs up

Earth's prebiotic and modern atmosphere

Head of a whimbrel (Numenius phaeopus)

Head of a red-tailed hawk (Buteo jamaicensis)

Head of a hooded merganser (Lophodytes cucullatus)

Head of a northern cardinal (Cardinalis cardinalis)

Head of a roseate spoonbill (Ajaia ajaja)

Head of a northern flicker (Colaptes auratus)

Head of a brown pelican (Pelecanus occidentalis)

Phylogeny based on differences in the protein sequence of cytochrome c in organisms ranging from Neurospora mold to humans.

Gray mouse lemur (Microcebus murinus)

Slow loris (Nycticebus coucang)

Female black-and-gold howler monkey (Alouatta caraya)

Liu Hui's "Tangram" proof that the sum of the squares on the sides of a right triangle equals the square on the hypotenuse.

HAPPY 文字

誕生日 ガーランドフラッグの飾り素材

Diagram depicting the process of atoll formation. Atolls are formed from the remnant parts of sinking volcanic islands.

英語と子供

はてなマークの吹き出し

コロナウイルス　ウイルス　退治

肺　健康　病気　セット

トラブル　振動　騒音

リモートワーク　オンライン　ビデオ会議

脳　病気　セット

エアコンフィン

タピオカミルクティーを飲む女の子

Young man sitting at table in front of a computer laptop and thinking what to write in e-mail or chat, isolated on white

retro style bubble speech icon on white circle with a long shadow

think bubble icon

think bubble icon

think bubble icon

think bubble icon

Digital composite backgrounds