How to Collect and Press Plants

INCREMENT CORES How to Collect , Handle , and Use Them

This paper describes increment cores (a useful tool in forestry and wood technology) and their uses which include age determination, growth increment, specific gravity determination, fiber length measurements, fibril angle measurements, cell measurements, and pathological investigations. Also described is the use and care of the increment borer which is essential in obtaining good cores. A caut...

How To Collect and Preserve Insects for Study

The equipment used in collecting insects is simple and inexpensive. The average collector usually will need only a few items : Nets, killing bottles, suction bottle, tweezers, scissors, small brushes, and insect pins. Many collectors prefer to make most of their own equipment even though most items may be purchased from commercial supply companies. The insect net is essentially a cloth bag hung...

How to Collect High-Quality Data Cost-Effectively

How to collect balls moving in the Euclidean plane

In this paper, we study how to collect n balls moving with constant velocities in the Euclidean plane by k robots moving on straight track-lines through the origin. Since all the balls might not be caught by robots, differently from Moving-Target TSP, we consider the following 3 problems in various situations: (i) deciding if k robots can collect all n balls, (ii) maximizing the number of the b...

How to Collect Equine Oocytes by Transvaginal Ultrasound-Guided Follicular Aspiration

Assisted reproductive techniques such as oocyte transfer and intracytoplasmic sperm injection (ICSI) can be used clinically to produce foals from mares with reproductive abnormalities that prevent normal breeding or production of embryos. ICSI can also be used to produce foals from stallions with poor fertility or from semen with limited quantity. Both of these procedures require the collection...