Judul: Studi Kemungkinan Pendirian Pabrik Ker·tas dari Bahan Baku Batang Jagung, Merang atau Bagasse di Kabupaten Kediri, Jawa Timur
Abstrak: Kertas merupakan suatu masalah di Indonesia; karena produksi kertas dalam negeri lebih rendah dibandingkan dengan konsumsi kertas. Produksi kertas dalam negeri diperkirakan dapat memenuhi sekitar 30 persen dari kebu-tuhan kertas nasional. Peningkatan produksi kertas dalam negeri dapat dilakukan antara lain dengan pembangunan pa-brik kertas baru, Bahan baku kertas yang banyak digunakan oleh pabrik-pabrik kertas di Indonesia adalah bahan serat limbah per-tanian (merang dan bagasse), kayu, bambu, kertas bekas dan pulp import.
Keyword: Break Even Point, bagasse, pulp industry

Judul: Strategi pengembangan usaha industri pulp merang: Studi kasus di PT.Kertas Padalarang, Jawa Barat
Abstrak: Pada masa PJPT II ini agroindustri sebagai jembatan transformasi antara sektor pertanian dengan sektor industri sangat besar memberikan peranan. Industri pulp merang sebagai bagian dari sektor agroindustri akan memberikan kontribusi juga terhadap devisa negara. Terutama hal ini dikaitkan dengan potensi Indonesia sebagai negara pengha­ sil pulp terbesar di dunia pada masa yang akan datang. Dimana kekayaan hasil hutan berupa kayu sebagai salah satu bahan baku pulp sangat melimpah ketersediaannya di dalam negeri. Perkembangan industri pulp dan kertas sendiri mendu­ duki posisi kedelapan sebagai komoditi ekspor dalam indus­ tri pengolahan dan tetap terbuka kemungkinan ranking tersebut akan meningkat dalam tiga atau empat tahun menda­ tang, industri pulp dan kertas ini bahkan memberikan kontribusi terhadap Produk Domestik Produk (PDB) yang paling besar dibandingkan sektor usaha lainnya. Berdasarkan data tahun 1986, kebutuhan pulp Asia sampai tahun 2001 diperkirakan akan meningkat 16,9 juta ton per tahun. Namun di sisi lain, luas hutan yang harus ditebang semakin lama akan semakin luas sedangkan produksi dari hutan alam terus mengalami penurunan. Oleh karena itu perlu adanya alternatif bahan baku selain kayu untuk industri pulp, diantaranya adalah merang. Namun keterse- diaan bahan baku merang pun mengalami keterbatasan akibat penggunaan bibit unggul padi, penggunaan media merang untuk produk lainnya serta pengalihan fungsi area dari pertanian ke sektor lainnya.
Keyword: 

Judul: Algorithm construction of HLI hash function
Abstrak: Cryptography is a study of mathematical techniques related to aspects of information security regarding on confidentiality, data integrity, entity authentication, and data origin authentication. Data integrity is a service, which is associated with the conversion of data carried out by unauthorized parties. To maintain data integrity, one can use hash functions. An hash function is a computationally efficient function to map an arbitrary length bitstring to a fixed length bitstring called as hash value. The use of hash function in maintaining the information integrity and authentication is in digital signatures, virus protection, and software distribution. Illustration of the hash function in the integrity and authentication of information that is emailed as follow. The sender sends the information and hash value to the recipient. If the hash value of the information is equal to the hash value that is sent by the sender, then information has not been changed. Otherwise the information has been changed. An hash function has two properties, one way and collision resistance. An hash function is called one way if it is computationally infeasible to find any input such that when given any hash value . Meanwhile an hash function is called collision resistant if it is computationally infeasible to find any two inputs where such that . The purpose of this study is to construct a HLI hash function algorithm, to analyze the speed and security of the hash functions as a results of construction. Furthermore, it is to compare it with SWIFFT. Hash function is constructed based on the result of algebraic operations on modular polynomial ringwith . Modular polynomial ring noted as is a set of all polynomials of degree at most with coefficients in . can be represented as a set of integer vector of modulo in dimension . So, it is simple to implement in a computer. In vector operations, is lattice . Furthermore, alattice that is defined from certain polynomial ring is called ideal lattice. HLI hash function is consists of addition and multiplication algorithm in the ring. Addition algorithm consists of sumation operations of modulo and multiplication consists of multiplication operations of modulo . Generally, algorithm of HLI hash function consists of multiplication operations of modulo and addition operations of modulo . However, if the input is binary number then multiplication algorithm only consists of multiplication operation of modulo , so algorithm of HLI hash function consists of multiplication operations of modulo and addtion operations of modulo . An hash function is secured if it has two properties, i.e., one way and collision resistance. HLI hash function hash is one way, it is following the proof of Micciancio. It is has collision resistant because of polynomial is irreducible over and monic. Moreover, it is proved that for every unit vector , the vector is small vector. If the input of hash function is a binary number then HLI hash function only involves addition operations of modulo . So the time that used almost same with SWIFFT. The excellence of HLI hash function is the key size smaller than SWIFFT. This effect on
Keyword: hash function, modular polynomial ring, lattice